Welder World Blog

Archive for December, 2010

SVI Gas Saver Applications

LPG / Natural Gas / CNG  are a vital component of the world’s supply of energy. It is one of the cleanest, safest, and most useful of all energy sources. SVI Gas Savers are effective with all these energy sources. 

Commercial establishments such as Hotels, Restaurants, Caterers, Resorts, Clubs, Cafes, Sweet Shops, Canteens, etc and other institutions such as Hospitals and Hostels choose SVI Gas Saver because of its cost effective results. 

We make businesses more cost-effective, clean and keep customers smiling. 

Cooking ifferent types of cooking are efficiently performed using SVI Gas Saver: Boiling, Stewing, Frying, Grilling, Toasting, Broiling, Roasting, Baking, etc. 

Water Heating: Hotels and Inns need to provide hot water for bathrooms, spas and swimming pools for comfort of their guests.

SVI Gas Saver has been proven to be a cost effective and reduces pollution. 

Laundry: Hotels, Hospitals and other such establishments require steam and hot-water for laundry.

SVI Gas Saver has been proven to be a cost effective and reduces pollution. 

Air Conditioning: SVI Gas Saver can be used in Vapour absorption chillers (used for air-conditioning) to save on huge gas costs required for running traditional air conditioners. 

Incineration: Hospitals and Laboratories generate hazardous bio-medical waste which needs to be incinerated for safe disposal.

SVI Gas Saver is used in heavy incinerators applications for complete burning of the bio-medical waste with reduced harmful emissions and cost. 

Industries require cost-effective and efficient energy solutions for their various processes. In most applications, SVI Gas Saver can be used as a clean and cost-effective solution in furnaces, kilns, ovens, dryers, boilers, hot air generators, etc. Some of which are described below.

Agriculture : SVI GAS SAVER  finds application for drying of various agricultural crops like drying of seeds and pulses, roasting of peanuts, curing of tobacco, etc.

Drying with SVI GAS SAVER  is economical. 

Automobile and Auto Ancillary :SVI GAS SAVER is used for production of automobile components like engine blocks, gears & transmission parts, springs, alloy wheels etc.

SVI GAS SAVER is also used in paint-shop and powder coating units in these industries. 

Ceramics: SVI GAS SAVER is used in kilns and furnaces in the ceramic industry for manufacturing tableware, decorative earthenware, sanitary ware, electrical insulators, etc. 

Chemicals, Paints & Dyes, Soaps & Detergents: SVI GAS SAVER is used in chemical industries for process heating (through steam), roasting and drying of chemicals. 

Dairy: SVI GAS SAVER is used in Dairy industries for process heating, cleaning and drying applications.

The energy source is usually steam or hot water generated through boilers / thermic fluid heaters which uses SVI Gas Savers. 

Ferrous & Non-Ferrous Metals: Typical applications like melting, pre-heating of ingots/bars, various forms of heat treatment, protective surface coatings, etc. uses gas which can be reduced by using SVI Gas Savers. 

Engineering & Fabrication : SVI GAS SAVER  is used in engineering and metal fabrication processes for cutting & joining metals – both ferrous and non-ferrous.

Natural Gas / LPG is a cost-effective option for oxy-gas cutting compared to acetylene, and in brazing furnaces compared to diesel. When there is Natural Gas / LPG there is SVI Gas Savers. 

Food & Beverages : SVI GAS SAVER is used in bakeries for baking of breads, cakes & biscuits, in biscuit units for baking of wafers & cream biscuits. 

Glass : SVI GAS SAVER  is used in glass industries for various processes like glass feeders, annealing lehrs, glass cutting and fire polishing, melting, etc. 

Surface Coatings: The applications include curing of paint after spray painting, baking of powder coated articles, galvanizing and other protective metal coatings uses SVI Gas Savers. 

Paper & Packaging: SVI GAS SAVER is used paper industries for drying to produce high quality paper sheets, and also in the manufacture of packaging materials like corrugated sheets, rolls and boxes. 

Pharmaceutical: SVI GAS SAVER is perfectly suited for Pharmaceutical industries which need steam in a variety of processes, without compromising on clean ambience and high environmental standards. 

Plastics: SVI GAS SAVER is used in plastic industries for heating in injection moulding process and rotomoulding process to produce wide variety of plastic articles such as bottles, storage tanks, containers, etc. 

Printing: SVI GAS SAVER is used in the print industry for drying of ink to produce high quality glossy prints for magazines, etc. 

Textile: SVI GAS SAVER is used in textile & garments industry for numerous applications – Singeing (burning off loose yarn for better fabric finish), Calendaring (another finishing process), Drying after printing on fabrics and Steam generation. 

Others: SVI GAS SAVER powering applications in other industries such as Batteries, Blades, Woven & non-woven sacs, Electrical & Electronics, Consumer Goods, etc And we are finding more and more.

It wouldn’t be wrong to say that rare earth magnets have taken the world by sweep of innovation, invention and creation. It is not an old story when CRT TVs were introduced and later huge pack of inventions followed up.

The trend all started from CRT TVs which later laid the innovations in various updates like colored TVs, Plasma displays, LCDs, 3D-LEDs, etc. There are some permanent magnets which mostly shelter in Power meters, DC or AC motors, engines, welding equipments, etc.

Neodymium magnet is mostly seen being used in newly launched products with linked in innovations. This magnet does come with a variety of shapes. In accordance with application types, it comes in disc, circular, spherical, cubical, cylindrical shapes, etc.

Rare earth magnet can be used for variety of purposes. As mentioned earlier they can be used for scientific invention, apart from that you can use this wonderful piece as a toy, decoration piece, holding device, conversation piece, binders, brochure closures, homemade compass and many others.

Other than above mentioned uses, these wonderful magnets can be used as welding clamp, stud or screw finder, metal detector cabinet locker and many more.

Most often it is used for scientific experiments. The experiments like levitation have a great importance for rare earth magnet. Permanent magnet levitators are widely liked not only for experiments but also for fun and gifts.

Sewing magnet is yet another enticing feature of these rare earth magnets. They can be sewn adjacent to apparels or in the pockets. Purses also include these in the form of clasps. One vital plus side of these magnets is that the credit cards do not face any sort or wear or abrasion behaviour from them.

But, there are rare magnets which can erase the data from many devices. Like some rare magnets can specifically be used to erase the data from any old hard disk without any problem. So care should be taken while dealing magnets and sensitive data devices.

Related Magnetic Welding Clamps Articles

The professional-grade Ranger R23LT is a tilt tower machine with a large turntable that provides an internal clamping capacity of 24″ and external clamping capacity of 22″. A sturdy body, rigid 45mm hexagonal vertical shaft, and hardened-steel horizontal outrigger support arm eliminates flex during all tire service procedures to reduce the chance of expensive wheels getting damaged. Bead seating and tire inflation is simple and effortless with Ranger’s exclusive TurboBlast™ portable bead seating system.

A new high-torque electric turntable drive features increased speed and reversible direction for quicker tire removal and installation. Controlled speed gives low profile and run-flat beads time to relax to reduce the risk of tire damage.
Improved electric motor features the best of proven technologies, including rugged copper rotor construction, stronger high-quality ball bearings, thermal-cool epoxy insulation, and durable rolled steel frames. All motors are 110-208/230V and 50-60 hertz capable.
A balanced flywheel helps the machine run smoothly, reduces vibration, and helps minimize associated stress on other machinery components.
A completely new and proprietary bead-breaker design features bilateral pneumatic accelerators for lightening fast bead-breaker speeds in both directions. A 100% stainless-steel cylinder body means no more worrying about moisture contamination from corrosion due to air source condensation. Other exclusive design features include a multi-axis, adjustable blade for multi-angle tire capacity, a large, dual-flange axle that eliminates blade flex and premature failure, and adjustable blade settings that help accommodate a larger variety of tire and wheel combinations.
Enhanced bead breaker arm features rugged box frame construction that increases the mechanical strength and assures years of dependable service and performance. A large rubber bump-stop assures smooth return to help reduce shock loading and minimize wear on pneumatic cylinder, guides and associated moving parts.
Industrial-grade, 45-micron, pneumatic control valves feature die cast and machined bodies constructed from zinc and aluminum. High-performance polyurethane seals and self-lubricating, Teflon® piston guides provide increased service life and performance at the highest level possible within almost every imaginable working condition. Valve plungers feature muffled extrication ports that direct any dirt or contamination accumulated on the outside perimeter of the spool to be automatically blown away each time the valve goes into the release position.
Durable forged steel (instead of cast iron) foot pedal levers will stand up to everyday use and abuse in high-volume tire centers. Snap action spring return means precise and controlled operation.
Foot pedal control valves feature multi-link rod connections for non-binding plunger movement and precise bilateral control.
All main-lead electrical terminals, auxiliary switches, and motor enclosures are sealed for air-tight, dust-free and contamination-proof protection of terminal leads.
Ranger Next Generation™ tire changers feature high pressure polyurethane pneumatic tubing with mirror smooth seamless bore for exceptional flow rates, high abrasion resistance, high burst tolerance and maximum kink resistance.
Specially engineered drive-belt features convex sidewalls to distribute wear evenly while providing proper belt support for improved service life. Flex-bonded cords and flex-weave covers resist the effects of oil, heat, ozone, weather and aging.
A newly designed, maintenance-free gearbox features a large oil and grease reservoir that helps provide efficient heat dissipation and improved lubrication for longer service life. Internal baffles and a constant seating stress flange gasket assure positive, leak-free venting. The rugged gearbox enclosure is precision milled for precise alignment of horizontal and vertical bases and features precision helical gears that operate much more smoothly and quietly than typical spur gear transmissions. The rugged housing provides maximum strength for extreme durability under hard working conditions and greater precision under load during worm and gear alignment. High-strength, oversized worm and worm gears are straddle mounted between heavy-duty tapered roller bearings providing rugged dependability.
Durable, hardened, alloy-steel RimGuard™ wheel clamps features internal and external multi-teeth jaws with vertical mounting bolts that make replacement fast and simple.
A geometric tabletop provides for easier bead lubrication and allows operators to make visual inspections of the lower bead during mounting and inflation procedures.
Optional powerful assist tower features a multi-profile traveling drop-center tool that holds stubborn sidewalls in the drop-center area of the wheel for swift, precise mounting. A single lower bead lifting disc can be used to unseat stubborn lower beads or to elevate tires for tool placement. A tire iron slot built into the bead lifting disc gives operators additional leverage for difficult tire handling. These important tire shop tools dramatically reduce the effort required to change difficult, low-profile tires and helps minimize operator fatigue. Up front trigger control and articulating arm allows for variable tire and wheel configurations.
R23AT and R23LT tire changers handle custom tire and wheel assemblies, 10″ to 24″ without the need for clumsy adapters or clamp adjustments. From simple factory steel wheels to supersized delicate customs, multiple optional power-assist features will help you change tires with minimal effort.
A pneumatic nylon non-marring wheel restraint device assures wheels are safely secured to the turntable during inflation procedures.
Up front controls and a sensible ergonomic design provide ease of use and more efficient operation.
Tilt-back tower design provides greater clearance and access for tire removal and inflation. Pneumatic-lock tool head stays positioned on the tower return for instant set up for like sets of tires and wheels.
Stainless-steel and aluminum pneumatic cylinders are designed to reduce machine vibration and provide low-friction and long life operation. Internal end-of-stroke cushions are standard that help provide cushioning at the end of each full stroke to recue wear on seals, wear band and piston rod. Permanent lubrication design provides outstanding service life.
A hardened alloy steel mount and demount head has a unique equidimensional shape that allows you to perform all changing functions with the tool head in the same position. The micro-smooth tool head surface glides tire beads effortlessly during mounting and demounting procedures to ensure costly tire damage is minimized.
Important wheel service accessories come standard like a large soap bucket with brush and a multi-piece plastic wheel protector kit that includes turntable jaw covers, bead-breaker blade boots and specialized mount / demount head covers to help protect delicate wheels.
We throw in a hardened steel tire iron and bead lever tool to assist during all tire mounting and demounting operations.
A rigid 45mm spring assist hexagonal vertical tool shaft combined with a hardened-steel horizontal outrigger support arm maintains perfect position of the mount-demount tool head during all tire service procedures to reduce the chance of expensive wheels getting damaged. All moving parts feature maintenance free linear guide bearings for easy adjustment of both vertical and horizontal wheel settings. The non-flex horizontal arm also features a hardened lower roller guide for smooth and controlled in and out movement. Integrated rubber bump stops assure smooth return during tilt-back operations to help reduce shock loading and minimize wear on tower guides and moving parts.
A simple to use tire inflator features foot-pedal operation and inflation hose with a sure-grip clip-on valve chuck enabling hands-free operation. Integrated air pressure dump valve enables you to lower tire pressure with a simple push of a button.
Ranger tire changers feature the renowned TurboBlast™ bead seating system* that blasts a powerful air burst between the tire and rim to help seat stubborn beads fast. A durable, non-marring nylon discharge barrel features a contoured tab that locks securely on the edge of the rim for better control during air discharge between the tire and wheel. A welded-steel, eight-gallon surge tank is larger than competitive models for all the inflation power you need, when you need it.
Plenty of storage area for tools and accessories. Helps keep your shop tidy and operation-critical tools close at hand.
Stainless steel braided metal conduit protects hoses and wires from abrasion and wear.
Optional motorcycle turntable clamps add a whole extra level of versatility with the optional motorcycle turntable clamping system. Expand your capabilities, clientele and your bottom line.

You really can’t find a better all-in-one machine for changing your customers tires error-free! Check out more about this new automatic tire changer at http://BestBuyAutoEquipment.com

Find More Welding Turntables Articles

Learn proper ventilation for welding fumes in this free DIY video for beginners.

Expert: teacherjon
Bio: Jon holds a Bachelors of Science in Education and Human Sciences degree, with an endorsement in Industrial Technology Education from the University of Nebraska in Lincoln.
Filmmaker: Jon Olson

Compared to welding other metals, welding aluminum is easier because of various factors, among them the propensity of aluminum to thaw out at a comparatively lower temperature and not breaking when it turns rock-solid. Depending on the type of alloy of aluminum you are using, you will weld the metal differently. With a little effort you can learn how to weld aluminum in all its different forms.

The various types of alloys include non-heat-treatable alloys like the ones containing manganese (Mn) and Magnesium (Mg) and heat-treatable alloys containing magnesium zinc and silicon copper.

Work pieces made from these types of aluminum are easier to weld whereas the ones containing copper and lead are harder to work with. Copper and lead alloys usually have a tendency to crack when they are weld, which makes it harder to work with them.

Different Welding Methods – MIG and TIG Welding

Apart from gas and plasma welding, the two most often used welding methods are TIG welding and MIG welding. Tungsten inert gas (TIG) welding, also known as Gas tungsten arc welding (GTAW) uses non-consumable tungsten electrode to produce the weld. The power is a constant current welding power supply.

MIG welding process is a subtype of gas metal arc welding. Among the two, MIG welding is the more advanced and can handle thicker aluminum work pieces, at a much faster speed.

Safety, Precautions and First Aid

Safety for yourself and your environment should always be your primary concern when welding aluminum, or any other metal. Welding is unlike many other hobbies or jobs because of the high temperature and stress that are involved in it. Apart from the high temperature, flames, the arc and molten metal are constant risk. Keeping this in mind, wearing your helmet and glasses while you work cannot be compromised with. It must be a habit with you to flick the glass down when you start welding.

Aluminum also requires special care because aluminum jobs produce imperfections in the weld area that have to be brushed away with a steel brush from time to time. You have to be careful while you use the brush.

It is also advisable to learn how to aluminum weld properly as well as know basic first aid in case you or any of your coworkers are injured while welding. Without adequate safety and precaution, your aluminum welding job is an endeavor fraught with risk. You must take steps outlined here to reduce that risk.

Buying a log splitter is a time consuming process. Which one will work for you? Which one will last the longest? How much money is it worth? Should I order online or go to my local store? There are a variety of questions you should ask yourself before purchasing a log splitter. Here are some quick tips on how to buy the right log splitter.

Are you splitting a lot of wood or a little pile? If you’re going to keep splitting several cords of logs or wood every year, then you might want to go a little more heavy duty with your splitter choice. A 12 ton log splitter ought to do the trick if they are smaller logs and softer wood or a 20 ton or more might be a better fit for a big pile of unknown sized logs. The hardness of the wood should play a part in your decision too – it’s not just the size of the log or the pile of logs that matters. For harder woods it is best to go with a higher tonnage log splitter.

Are log splitters portable? For the most portability between neighbors or family members, almost any log splitter comes with wheels or some way to transport it. The smaller log splitters you can simply lift into the back of a truck or vehicle while the larger wood splitter can be towed behind a four-wheeler or a truck if you have the right hitch and ball available. Almost all log splitters are portable these days.

What kind should I get? There are a variety of available log splitter types on the market today. It really depends on the type of ‘fuel’ you have available. If you’re in a remote location or you plan to camp with this splitter, then a manual log splitter is probably right for you. If you’re near an electric outlet, then an electric log splitter might be right. For the ultimate in portability and big projects, the gas hydraulic log splitter is a good fit.

How much money should I spend? In the splitter industry, the old adage applies: the price is equivalent to the quality of the product. Some manual splitters run 0 to 0, but they are hard to handle and break easily. I suggest looking in the price range of 0+ to ensure good quality and strong ability to break the logs or wood you have laying around.

Should I order online or go to a local store? Supporting your local market is always fun to do. These days, it is actually less expensive to shop for virtually anything – heavy or not – online. Just be wary of shipping. Some of the bigger log splitters require a freight truck and a lift gate is going to cost between and 0 extra when they deliver the big log splitter to your driveway.

These were just a few questions to help you decide which log splitter is right for you. Good luck in your log splitter purchase!

www.AsktheBuilder.com host Tim Carter walks you through the pros and cons of three different log splitting methods a manual log splitter, a gas powered hydraulic log splitter and a wood splitting maul.

More Welders Resort to Induction Heating For Preheating, Stress-Relieving

Traditional Induction Heating Applications

- Soldering                                                          

- Brazing

- Surface hardening

- Tempering
- Bonding

- Curing                                                        
- Encapsulating
- Melting
- Forging
- Super heating
- Crystal growing

Although many industries have used induction heating for decades, it’s a newcomer to industrial and construction applications involving welding. Pre-heating before welding and stress-relieving (i.e. postheating) after welding are the new uses for induction heating, and companies with weldiang-intensive operations have significantly increased efficiency as a result.

Induction heating: how it works

Induction heating systems employ non-contact heating. They induce heat electromagnetically rather than using a heating element in contact with a part to conduct heat, as does resistance heating. Induction heating acts more like a microwave oven; the appliance remains cool while the food cooks from within.

In an industrial example of induction heating, heat is induced in the part by placing it in a high-frequency magnetic field. The magnetic field creates eddy currents inside the part, exciting the part’s molecules and generating heat. Because heating occurs slightly below the metal surface, no heat is wasted.

Induction heating’s similarity to resistance heating is that conduction is required to heat through the section or part. The only difference is the source of heat and the temperatures of the tool. The induction process heats within the part and the resistance process heats on the surface of the part. Depth of heating depends on the frequency. High frequency (e.g., 50 khz), heats close to the surface, while low frequency (e.g., 60 Hz) penetrates deeper into the part, placing the heating source up to 3 mm deep, allowing heating of thicker parts. The induction coil does not heat-up because the conductor is large for the current being carried. In other words, the coil does not need to heat-up to heat the workpiece.

Induction heating system components

Induction heating systems can be air- or liquid-cooled depending on application requirements. A key component common to both systems is the induction coil used to generate heat within the part.

Air-cooled system

A typical air-cooled system consists of a power source (5kW or 25kW), induction blanket, and associated cables. The induction blanket consists of an induction coil surrounded by insulation and sewn into a high temperature, replaceable Kevlar sleeve. This type of induction system can include a controller to monitor and automatically control temperature. A system not equipped with a controller requires the use of a temperature indicator. The system could also include a remote on-off switch. Air-cooled systems can be used for applications up to 400 degrees F, designating it as a pre-heat only system.

Liquid-cooled system

Because liquid cools more efficiently than air, this type of induction heating system can be used for applications requiring higher temperatures, such as high-temperature preheating and stress relieving. The principle differences are the addition of a water cooler and the use of a flexible liquid-cooled hose that houses the induction coil. Liquid-cooled systems also generally use a temperature controller and built-in temperature recorder, particularly important components in stress relieving applications. The typical stress relieving procedure requires a step to 600-800 degrees F, followed by a ramp or controlled temperature rise to a soak temperature of approximately 1250 degrees F. After a hold time, the part is control-cooled to between 600-800 degrees F. The temperature recorder collects data on the part’s actual temperature profile based on a thermocouple input, a QA requirement for stress relieving applications. The actual procedure will be determined by the type of work and the applicable code.

Induction heating benefits

Compared to conventional preheating and stress relieving methods, induction heating offers numerous advantages, including improved heat uniformity and quality, reduced cycle time, and lower consumables costs. Induction heating is also safe, reliable and easy to use, and scores higher than alternative technologies in power efficiency and versatility.

Uniformity and quality

Induction heating is not particularly sensitive to coil placement or spacing. Generally, the coils should be evenly spaced and centered on the weld joint. On systems so-equipped, a temperature controller can establish the power requirement in an analog fashion, providing just enough power to maintain the temperature profile. The power source provides power during the entire process.

Reduced cycle time

The induction method of preheating and stress relieving provides significantly quicker time-to-temperature. On thicker applications, such as high pressure steam lines, induction heating can slash two hours from cycle time. It is conceivable to reduce cycle time from the control temperature to soak temperature. When combined with other usability factors, it is not uncommon to expect a 50 percent total cycle time reduction.

Reduced consumables costs

The insulation used in induction heating is easy to attach to work pieces and can be reused many times. Conversely, ceramic fiber insulation used in resistance heating can be used only once or twice before it has to be discarded, requiring a large inventory of insulation and incurring significant costs for disposal of potentially hazardous material. In addition, in comparison to resistance system components, induction coils are robust and don’t require fragile wire or ceramic materials. Also, because the induction coils and connectors don’t operate at high temperatures, they are not subject to degradation, as are ceramic heating pads.

Ease-of-use

A major benefit of induction preheating and stress relieving is its simplicity, which contributes to easy use. Insulation and cables are simple to install, usually taking less than 15 minutes. http://inductionheater.net  has shown boilermakers and pipefitters how to use the induction equipment with just one day of training.

Power efficiency

The inverter power source is 92 percent efficient, a critical advantage in an era of skyrocketing energy costs. Additionally, the induction heating process is more than 80 percent efficient. Regarding power input, the induction process only requires a 40 amp line for 25kW of power.

Safety

Preheating and stress relieving through the induction method is extremely worker-friendly. Induction heating does not require hot heating elements and connectors. Very little airborne particulate is associated with the insulation blankets, and the insulation itself is not exposed to temperatures over 1800 degrees F, which can cause insulation to break down into dust and then breathed by workers .

Reliability

One of the most important factors impacting productivity in stress relieving is not interrupting the cycle. In most instances, cycle interruption means the heat treat will need to be re-run, which is significant when a thermal cycle can take a day to complete. The induction heating system components make cycle interruptions unlikely. The cabling for induction is simple, making it less likely to fail. Also, no contactors are used to control the heat input to the part.

Versatility

The Duolin Induction Heat Treatment System was originally designed for preheating and stress relieving of pipe. Now, users of induction heating systems have adapted the process for weldolets, elbows, valves, and other parts. One of the aspects of induction heating that makes it attractive for complex shapes is the ability to adjust the coils during the heating process to accommodate unique parts and heat sinks. The operator can start the process, determine the affects of the heating process in real-time and modify the coil position to change the result. Lastly, the induction cables can be moved without waiting for air cooling at the end of the cycle.

Induction heating in welding applications

DUO LIN Induction Heating Systems, Co, Ltd., the manufacturer of induction heating systems for welding applications, has proven its technology on a number of projects, including oil and gas pipelines, heavy equipment construction and maintenance and repair of mining equipment. Summaries of various projects are presented below.

Oil pipeline

A North American oil pipeline maintenance operation had used a combination of propane torches and electrical resistance to heat pipe before welding encirclement repair sleeves or STOPPLE fittings to the pipeline’s 48-inch girth. While many repairs could be made without having to stop oil flow or drain it from the pipe, the presence of the crude itself hampered welding efficiency due to the heat sink effect of the flowing oil. Propane torches required constant interruption of welding to maintain heat, and resistance heating – while providing continuous heat – often couldn’t meet required weld temperatures.

The maintenance company turned to induction heating as a solution. On encirclement sleeve repairs, two 25kW systems were employed with parallel blankets to obtain a preheat temperature of 125 degrees F. As a result, cycle time was reduced from 8-12 hours to 4 hours per girth weld. Preheating for a STOPPLE fitting (a “T” junction with valve) repair had been even more challenging due to the fitting’s greater wall thickness. With induction heating however, the company used four 25kW systems with a paralleled blanket set-up. Two systems were used on each side of the “T”. One system was used on the mainline to preheat the oil and the second was used to preheat the “T” at the circumferential weld joint. The preheat temperature was 125 degrees F. The weld time was reduced from 12-18 hours to seven hours per girth weld.

Natural gas pipeline

A natural gas pipeline construction project entailed building a 36 in. diameter, .633 in. pipeline from Alberta, Canada to Chicago. On one spread of this pipeline, the welding contractor used two 25kW power sources mounted on a tractor with the induction blankets attached to booms for speed and convenience. The power sources were used to preheat both sides of the pipe joint. Critical to this process was speed and reliable temperature control. As alloy content increases in materials to reduce weight and weld time, and to increase part life, controlling preheat temperatures becomes more critical. In this induction heating application, it required less than three minutes to obtain the 250 degrees F preheat temperature, versus approximately five minutes using traditional preheating methods. In addition, temperature uniformity and operator safety were improved.

Heavy Equipment

A heavy equipment manufacturer often welds adapter teeth onto its loader bucket edges. Previously, the tack welded assembly was moved back and forth to a large furnace, requiring the welding operator to wait while the part was reheated repeatedly. The manufacturer opted to try induction heating to preheat the assembly to prevent movement of the product. The material is 4 in. thick with a high required preheat temperature due to alloy content. Duolin Electric worked with the customer to develop customized induction blankets to meet the application requirements. The insulation and coil design provided the added benefit of shielding the operator from the part’s radiant heat. Overall, operations were considerably more efficient, reducing welding time and maintaining temperature throughout the welding process.

Mining equipment

A mine had been experiencing cold cracking problems and preheating inefficiency using propane heaters in its repair operations of mining equipment. Welding operators had to remove a conventional insulating blanket from the thick part frequently to apply heat and keep the part at the correct temperature. The mine opted to try induction heating using flat, air-cooled blankets to preheat the parts before welding. The induction process applied heat to the part quickly. It also could be used continuously during the welding process. Weld repair time was reduced by 50 percent. In addition, the power source was equipped with a temperature controller to keep the part at the target temperature. This virtually eliminated rework due to cold cracking. The customer reported an annual savings of ,000.

Power plant

A power plant builder was constructing a natural gas power facility in California. Boilermakers and pipefitters had been experiencing construction delays due to the preheating and stress relieving methods they were employing on the plant’s steam lines. One of the biggest problems on this job was reliability of the electrical resistance equipment, which suffered from contactor and connector failures and broken wires on the heating pads during stress relieving. Extensive rework as a result, combined with long heating cycles, was delaying construction significantly. The company brought in induction heating technology in an attempt to increase efficiency, particularly for work on medium to large steam lines, as these pieces take the most heat treating time required on a job site.

On a typical 16 in. weldolet with a 2 in. wall thickness, resistance preheating and stress relieving used to take five-and-a-half hours to complete. Induction heating was able to shave two hours off the time-to-temperature (600 degrees F) and another hour to reach soak temperature (600 degrees F to 1350 degrees F) for stress relieving. The simplicity of wrapping the induction blankets around complex shapes further reduced the time to perform the heat treat. It took the fitters 15 minutes to wrap a joint that would have required two workers two hours to prepare using a resistance set-up.

www.JoshGuide.com How to Work on an Offshore Oil Rig Offshore oil rigs are huge platforms equipped with well-drilling equipment to produce oil from beneath the ocean. Companies need workers to operate and maintain this equipment. If working out at sea for weeks at a time in all types of weather is for you, consider working on an offshore oil rig. 1. Pass a physical examination and a drug screen test. Working on an offshore oil rig is physically demanding. Be in excellent physical condition if you wish to work on an offshore oil rig. 2. Get experience with land-based oil rigs. This helps you develop the skills to work the machinery without being in a more demanding environment like an offshore rig. 3. Meet the age requirement. You must be at least 18 years old to work on an offshore oil rig. No formal education is necessary. You simply must have some experience in the oil industry and be hard-working and ambitious. 4. Adapt to working a rotating shift. Most oil rigs work on a 14/21-rotating shift, meaning you work for 14 days and then have 21 days off. The 14 working days require long hours and tough work, but you can then have the equivalent of 60 percent of the year off. 5. Prepare yourself to work in all kinds of conditions and face possible dangerous situations. For instance, the oil rig you are working on may face a hurricane. Know all the possible dangers about working on an oil rig before deciding if this career is for you. Tips & Warnings Search for other …

More Welding Jobs In Alberta Articles

Undertaking any tiling job can seem daunting and there are reputable companies out there that can suggest qualified and skilled tillers that can carry out your tiling job for a reasonable price. If you still want to undertake the job independently, there is absolutely no reason why you will not be successful and a good tiling company will help you plan and budget for your tiling job.

The first aspect of any tiling job is your budget and knowing what that budget is, is paramount in order to help you complete the job successfully. The next step is to obtain your tools and materials for the job and decide what tiles you want; again any good company can help you make this all important choice.

Once your measurements are done you need to take some time to think for a moment how you are going to deal with difficult crevices and recesses. Cleaning the area of dirt, grout and dust is also hugely important before you start any tiling task.  Traditional wall tiles are popular for bathrooms and kitchens and come in a variety of colours and styles.  Ceramic wall tiles are hugely popular and are hard wearing and durable. Newly plastered walls will need to dry for quite some time and even walls are paramount to ensure that no imperfections show up once the tiles have been put in place.

Planning really is the key when undertaking any tiling job and making sure you know how many tiles you need is something you should do from the onset.  You can calculate how many tiles you need by measuring the height and width and making sure you count part tiles as whole tiles.  Also make sure you include breakages in your calculations and make sure that if you are going to need any more of the same tiles that there are plenty in stock.  Alcoves and window recesses should be calculated separately and then added on to the other calculations.  If your tiles include patterns and motifs you may need to plan more carefully and ensure you have a plan of the pattern you are going to have. Drawing a simple diagram will help you plan more effectively and this plan should be used throughout the tiling process.

Undertaking a tiling job may take some time to plan and obtain the materials but once the job has been completed, you can look on and admire your work with pride.

MIG welder is one of the most widely used welders. The process used in the MIG welder is called gas metal arc welding or GMAW. This kind of welders work by running a wire of electrode through a welding gun, at the same time generating a continuous flow of inert shielding gas. This protects the weld while it cools. Carbon dioxide is one of the most common gasses used for general welding purpose. In fact, it is the most cheapest of the welding gases, and creates a good weld.

Also, argon and carbon dioxide is used in a mixture to have a less spatter, cleaner welding arc. To obtain the best welds when welding aluminum Pure argon gas is been used. This welding process have numbers of advantages over the other common welding processes. The welding gun contains a trigger that controls the electrode and it allows you to position it without accidentally striking an arc.

After positioning it in the correct position, you need to flip down your helmet and pull the trigger. The inert shielding gases inside it make the welds smooth and clean and there will be no slag to break off. The MIG welders are well suited to the weld sheet metal and to the thinner metals, as they can weld in at the lower amperage than most of the welders. It always make use of DC current in order to strike the welding arc. This is because using alternating current does not provide a steady arc.

Through a MIG welder you can adjust the voltage, amperage and the speed of the wire fed in through the welder. You can use a MIG welder without the shielding gas and this is considered as the flux cored arc welding or FCAW. Most of the welders have the option of switching the welding arc polarity for use with the flux cored wire. In flux cored arc welding process the welding wire has a hollow core that is filled with flux.

It can be done out-of-door, as there is no concerns about the eruption of shielding gas. It has a hotter arc and is therefore can be used to weld thicker metal pieces. The key weaknesses of FCAW are that you need to remove the slag from the weld similar to welding with a standard stick welder and it cannot be used to weld thinner sheet metal and other light metals.

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This article was written to offer some hope for frustrated capable employees on the one hand and frustrated unqualified employees on the other hand.

Career building can be defined as progress into higher ranking jobs with different and more challenging responsibilities, what is known as job enrichment. It can also mean progress into another job where the match between personality traits and job requirements is a better fit, what is known as job rotation. Sometimes such career building can go along with promotion and higher remuneration.

Career building is normally possible in three ways.

If you are already a working adult, it means you have some sort of scholastic qualification, a certificate of proficiency, a degree or a technical artisan qualification. In other words we can say that you are proficient in some or other occupational discipline either through study, experience or both. If you want to stay in your present discipline like for instance marketing, finance or fitter and turner, the only way for career building upward, is into supervisory and managerial positions. To achieve this type of career building, you must improve your supervisory, managerial and leadership skills. We call this vertical career building. If you already have these skills, vertical career building can be achieved by grasping career opportunities that may come along, either in your present employer organization or in another organization.

Career building can also take place by moving from one discipline to another more lucrative or desirable discipline. This means you will have to learn new theories and practices to comply with the new job requirements. We call this horizontal career building. This move is desirable if you can get a better fit for your personal talents or interests.

Such a career change strategy will require good planning and effort to obtain the necessary knowledge and skills base for your horizontal career building. After your career change move, vertical career opportunities will again only be possible by learning the skills of supervision, management and leadership.

The third way to achieve career building is to start your own business. If it proofs to be a success and you can remain in business, the only way to grow and expand is to employ other experts to handle the work load. Again you will have to apply the principles of supervision, management and leadership and hopefully provide career opportunities to others, who may join your business.

So, it seems that whatever way you choose for career building, you cannot escape from skills training in supervision, management and leadership; not even if you are professionally qualified as a dentist, medical doctor or lawyer. Even if you operate a one-man business, you must interact with suppliers and customers, where you are going to need a lot of this knowledge to treat them to your own ultimate benefit.

Some people achieve career building through the application of nepotism (appointment of unqualified favoured friends and family members) or politically motivated appointments, which normally turns out into frustration for the job holder, subordinates and superiors, if job requirements cannot be met by the job holder.

If you want to be good in your job, whatever job that may be, you must also have the skills of supervision, management and leadership. Even the lowest level job need the application of the principles of supervision, as they apply to all jobs.

However, gaining the necessary skills is only one half of the recipe for rapid career building, as the most important ingredient must yet follow, by proving the results of learning through a high level of performance. A high level of performance in job key performance areas, as revealed by measurements of the job key performance indicators against targets or standards, will be the ultimate proof of job maturity and job satisfaction. This is also called performance management. Performance in a job can in itself also lead to career opportunities opening for you.

Normally, in order to comply with the law, you must earn a relevant driver license to drive a vehicle on a public road in any country. If you want to become a doctor, you must first earn the relevant qualifications to get your license to apply your skills in the medical profession. Likewise, if you want to become an engineer or lawyer you must first earn your qualifications by formal studies and pass certain minimum standards, before the relevant degree can be bestowed on you, as your license to operate in your particular sphere of expertise. If you aspire to become a Supervisor, Manager or Top Level Manager, you must also earn your relevant license to operate in such positions, the same way that the drivers, doctors, engineers and lawyers do. Otherwise, you can never claim to be a career professional as a Supervisor, Manager or Top Level Manager, as you will be trying to drive a section, department or organization without a proper license. This license is your key to career building.

Career building even starts at the youngest of ages. Yes, with your children. You can help them profoundly by triggering their interest in hobbies, crafts, sport, music and nature. The earlier they can discover their talents, the earlier they can start to develop it. If you give attention to this aspect of Child Career Building, they will be in a better position to choose their careers according to their interests and talents, when that time of imminent choice-making arrives. It will provide them with better career opportunities according to their best talents.

Above all, if you want to be successful with raising your kids and ensure that they become successful and the best possible world citizens, you are going to need some parenting skills as well.

Child Career Building is not a sole responsibility of schools and teachers. Children are far more influenced by parents than by teachers. Parental influence is the single most important factor in Child Career Building, especially so in the early stages of Child Career Building.

Child cognitive, intellectual and psychological building can be a culmination of genes, circumstances, environment and parental influence, of which parental influence is the most dominant and critical factor to impact on Child Career Building and behavior. With the right knowledge, parental influence can also be the easiest to apply for the beneficial building of cognitive, intellectual and psychological processes in children. Parents must fulfill their parental duty and prepare their children for the best career opportunities.
Most adults who end up as World Class Heroes and Champions started building their talents from an early childhood age.

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