Welder World Blog

Posts Tagged ‘need’

The 20ft shipping containers were available more than 50 years ago. The first containers were used to send goods in metal boxes that could be loaded and unloaded by crane. The first businessman to load a ship with several dozens of 35ft shipping containers was Malcolm Mclean, a North Carolina resident.

His route was Newark, New Jersey to Houston, Texas. A shipping container is made up of a body with bottom, top, and side walls having upper and lower horizontal hollow chords. Each of these chords has an opening at the bottom and top. To allow runoff of dirt and water, it has interior baffles sloped downward.

Generally, the cargo container is made with closed-top dry vessels from aluminum, plastic, plywood, fiberglass, steel or a combination of these materials. The hinged rear door allows for stowing and unstowing of cargo.

Today’s shipping containers are made in many ways. Some are made from 14 gauge steel with an exterior dimension of 20×8.5×8, which makes them an ideal onsite storage unit. Containers are made in several sizes like 20, 30, or 40 feet long with a height of 8, 8.5, and 9 feet.

A 20ft shipping container is designed to store and carry anything. It is ideal for short or long-term choice of storage units for building supplies, commercial use, and home use. A 40-ft shipping container does not have pockets. All containers’ bottoms walls have u-shaped horizontal beams found midway along the length of the wall and extending downward.

The walls have a top with one aperture and many baffles are seen along the beam. These baffles extend outward from the side toward the opposite sidewall, and stop at spaced intervals from the wall.

Shipping containers made from steel have corrugated walls welded to the top, end frames, and bottom side rails. Found on the container’s 8 corners are steel castings served as the end frames and welded to 4 corner posts. Their roofs may be made of corrugated sheet steel or flat sheet steel.

Supporting the roof structure are the interior bows. The plymetal doors are fitted with anti-rack and locking hardware and weatherproof seals. The floor is made of wood laminate, plywood or planking screwed to the cross pieces.

Containers made from aluminum are fitted with steel. The parts of the containers with steel materials are the end frames and side rails. The interior and exterior posts with sheet aluminum make up its walls which are riveted to the posts. Plywood lined the internal walls and roof bows which are welded to the top rails, bolted, or riveted, are made of aluminum.

Fiber-reinforced polymer, FRP, is another material used in making shipping containers. In this material, the container is framed in steel with FRP panels fitted on the wall sides, roof, and front-end wall. There are no roof bows to support the roof structure. However to make them waterproof, it is coated in mastic.

20 ft shipping containers are known for their strength and durability, modular elements, transportability, availability, and cost-efficiency. Today, they are used to construct apartments, studio rooms, school campus apartment, offices, classrooms, and villages.

Annual underwater welding/burning seminar for high school teachers & instructors. Held at The Ocean Corporation in Texas. These highlights are from Wet Welding 2007 held June ’07. High school teachers and instructors from around the country traveled to Houston to suit up in professional dive gear then weld/burn underwater. Attendees can look for themselves in this video. For more information call 1.800.321.0298
Video Rating: 4 / 5

When you cut, bend, or assemble metal materials then you have what is known as Fabcrications. The end result is usually formed out of sheet metal or structural steel. You might be familiar with the terms blacksmithing, boiler making or iron working which are the professions that use structural steel fabrications.

Fabricators begin creating their product by cutting the material using a combination of chiselling, shearing, or sawing techniques, a CNC cutter, or a handheld torch. Next, the fabricator will bend the material using a hammer or press brake. After the bending is complete, the fabricator will join the pieces of material together using welding techniques, riveting, fasteners, additional bending, or binding with adhesives. The fabrication processes usually involves a combination automation and human labour.

Developing the frames used in high rises and commercial buildings

Structural steel fabrication is a process often employed in the making of steel frames, which are used in building. Many buildings are constructed from a skeleton frame made of horizontal I-beams and vertical steel columns. These steel frames are positioned into a rectangular grid that will support the roof, walls, and floors of the building. This technique is used to form all sorts of structures, including skyscrapers.

High strength with the benefit of aesthetic appeal

Steel fabrications can be used on both residential and commercial construction products. The steel columns and beams are both durable and cost-effective for forming the frame of a building. The steel framing provides a high strength, sustainable structure with an added benefit of aesthetic appeal.

Using structural steel fabrications in constructing buildings allows for quick design and erection to get your building up and running as soon as possible. In addition, the materials and services required are readily available. Structural steel fabrications allow for more designer freedom as well.

Benefits of using structural steel fabrications

If you are planning to construct a building, either residential or commercial in nature, consider the use of steel fabrications in your project. There are a multitude of benefits associated with these building materials including durability, an appealing aesthetic and greater design freedom. In addition, the materials and services you need to complete the project are affordable and readily available.

Should you decide to employ fabrication and/or steel framing in your next building project, you are well advised to find someone with a good deal of experience and knowledge in the industry. You should look for someone with a good reputation for quality steel framing and construction. Though price is important, it should never be more important than quality. When you find the list of companies to call, be sure to ask about their previous steel fabrication experience and their recent jobs completed. The professional companies will be happy to answer your questions and highlight the various jobs that have recently completed.

Then you will be able to choose the company that can best serve your construction needs. Steel framing is one of the best construction options available for new buildings, especially large ones. The material is durable and easy to work with, and there are no limits to the designs that can be created. There is no doubt that if you use structural steel framing you will get a great result for your job.

CV Engineering has over 30 years experience in Structural Steel Fabrications and has the reputation of being the market leader in both the mining and construction industries here in Australia. Visit www.CVEngineering.com.au today and view the amazing gallery of photo’s highlighting their recent major jobs completed.

Related Structural Steel Fabricators Articles

Pipe welding is the most cost-effective way to fuse pipes together.  It uses both heat and cold to turn multiple pieces of pipe into one flush pipe – without any fittings.

Why is that so important?

Fittings can slow down pipes from start to finish.  They take longer to install that simply welding the pipes together, so they make entire construction projects take longer.  And, fittings can get in the way once a pipe is installed – meaning that they can cause flow restrictions, which makes your pipes less effective.

Because it’s a faster and more effective way of manufacturing, pipe welding has become incredibly important to the manufacturing world.  In fact, it has become so important that it has turned into a huge industry that introduces new technology all the time.  A lot of that new technology focuses on

/cms.php?content_id=ProcladHeatTreatment”>post weld heat treatment

.
What does that mean?

Post weld heat treatment is the work done after something has been welded.  It uses new heat to improve old welding work.  Post weld heat treatment can eliminate brittleness that has evolved on metal pipes over time, or it can be used to strengthen metal that has been weakened by lots of use.

Induction bending is the most common form of post weld heat treatment.  It uses an incredibly hot coil; as the pipe starts to get hot, the metal becomes pliable.  Induction bending is literally used to bend steel pipes. 
Induction bending is such a common form of pipe welding because it leaves the metal with a high quality finish.  All of the bends and curves are smooth, which makes the pipes themselves more effective.

However, as pipe welding tools and techniques get better and better, the need for post weld heat treatment diminishes a bit.  Butt welding is a great example of technology that isn’t completely dependent on post weld heat treatment.

Butt welding joins two pieces of metal or plastic together along a single edge.  The two pieces are laid side-by-side and welded together.  If it’s done correctly, you will never see a seam.  And, the work is so durable that you won’t need post weld heat treatment later to make any improvements.

Because it’s so effective, butt welding has become a common technique for manufacturing various machines, tools, and equipment.

A new addition to the ‘EZ’ Fit range is the ‘EZ’ Gold series, boasting an increased range of up to 14″ i/d and manufactured from forged steel for increased strength. Stainless steel roller balls are fitted as standard to the wing bolts. The “EZ” Gold Clamps can be used on stainless steel…
Video Rating: 5 / 5

Welding is the method by which two metal pieces are connected firmly to make them compact and solid. Architectural and Industrial structures have a need of high-class and well-known welding services in order to carry out this kind of complicated job. High-quality welding necessitates toughness and potency and will never ever compromise on protection, security and cleanliness and safety. Structural welds have to be looked over, studied and inspected every now and then to make certain that there are no discontinuities which may effect to some harms and dangers or hazards in the future. Some zones of businesses and industries require the welding services and processes in some context. The following are some of the intricacies of the welding services that you should know in order to understand fully the matters concerning this line of work.

Commercial welding companies are stringent in providing work for only experienced and trained welders who are professionals in knowing the accurate heat to be directed while welding. Their overall work shouldn’t seem to be hulking or potholed which means the weld is not consistent and the holes and cracks might turn up henceforward.

Moreover, there are some food and hospitality industries that make use of several welded steel paraphernalia. Premium steel known as 304 is utilized here for the reason that it is not prone to corrosion, without doubt. The welding services in this industry should be completed with grand accuracy to put off bacteria and other dangerous and harmful effluents from polluting and contaminating the foodstuff, which is a risk if there are not smooth or fractured segments in the equipments. So, in order to make certain that you will not experience this, you have to get the welding services that can ensure maximum safety. Thus, TIG welding is suggested here.

The many welding services can be prepared in diverse ways specifically gas welding which makes use of the heat and the flame from burning gas. In addition, propane torches are also utilized to weld minor items which have need of only a smaller amount heat. On the other hand an Oxyacetylene torch is the most extensively employed welding contrivance. Nevertheless oxy-propane is a more cost-effective and easy on the pocket alternative to both the aforementioned types. MIG welders, TIG welders, AC and DC welders are utilized for superior projects and weighty equipments.

In a nutshell, all accredited welders and welding services providers are capable of giving you the welding services that you need for your home and personal business enterprise. But making sure that they have a certification program even qualifies them as accomplished workers. The excellent standards continue to live all over the country as well as in the neighborhood. Experienced welders, until the end of time, make certain that their welds are in good health ground, smooth and out of sight. Deformation is negligible in the work they do. Skilled welders are always and forever acquainted with the tricks for the different types of specialty welding and grinding, as well.

<input id=”gwProxy” type=”hidden” /><input id=”jsProxy” />

how to use propane instead of acetylene gas with a harbor freight or victor oxygen acetylene welding cutting torch.brazing flux solder light forging forge heating to glowing.

The interest for cooking has been increasing exponentially in modern times. But as time goes by, the techniques to put up the greatest and best tasting meals are gradually shifting from manual operations to gadget-geared ones. Molecular gastronomy is definitely making history in kitchens! If you want to get a taste of such professional sounding cookery technique, you better get the right gas cylinders for food preparation.

These vessels contain gases at their liquefied states. Since the gases stored in them are at higher pressurized levels, these containers are made from durable metal material such as steel or aluminum alloy.

In the older times, they were merely used for industrial purposes such as welding or other mechanical procedures. But through time with the rise of discovering innovative cooking techniques that involve high regard to the molecular composition of food, these gas cylinders have transformed into being useful cooking equipment.

One of the most popular types of such vessels used for cooking or food preparation is the nitrous oxide cartridges. This kind is under the Case II classification of such gas containers. This category means that the substance, as in the nitrous oxide gas, only reaches its liquefied state when standard temperature with increased pressure is applied on it.

These metal containers are also known by a lot of names – whipped cream chargers, whippets or whippers. The smallest kind contains 8 grams of pure nitrous oxide while the bigger types come in 16 gram cylinders. They typically come in thumb size tubes measuring about 2.5 inches long and .7 inches wide. At first sight, they look like gun bullets due their structure – a narrow tip with a rounded end.

But for the cylinders used for industrial or commercial kitchen purposes, nitrous oxide tanks are larger both in height, weight and structure. These often involve a gas tank system that permits about ten liters of whipped cream will be produced per hour. This kind of vessels is usually used in coffee shops or patisseries.

For froths, foams or whipped cream to be produced, the vessel has to be attached to a dispenser. Upon doing so, the gas will be released into the other container, which should firstly contained prepared cream (preferably with at least 28% fat content).

Afterwards, the nitrous oxide cartridges will do the work. It will aid the process of producing bubbles in large amounts, which in the end would produce cream with the all new fluffy texture. The mentioned fat content in the cream to be put inside the canister is crucial. The rule of thumb is that the higher the fat content, the more fat molecules could be worked up and turned into a puffed coating of the cream. The lesser content might mean the whipped cream could instantly become watery.

The best thing about the gas cylinders such as the nitrous oxide cartridges is that they empower even the simplest people. You for one now have the power and capability to put up a great dish that might even deserve to rival those meals in restaurants!

There are numerous risks associated with the insurance of construction jobs; this article will analyze those risks and discuss the various policies available to protect against them.

There are a number of factors that an insurance underwriter must take in to consideration when evaluating the risk a certain project contains, starting with a detailed explanation of the project itself and the scope of work planned. Other details such as the type of construction that will be done as well as site information including topographical and geological conditions must also be considered. The constructions drawings are examined, along with the estimated project completion date; the contractor’s knowledge in the particular technique of construction used is also considered.

Material Damage refers to any destruction that accidentally occurs as a result of the contractor, which is an expected part of the construction process. Even these common factors and exposures can be protected by an insurance policy. Contractors Plant and Machinery All Risks, Erection All Risk, Contractors All Risk, and Civil Engineering Completed Risks are some of the kinds of policies that cover the Material Damage that contractors face.

There is also the possibility of having to pay compensation for claims by third parties for personal injury or property damage resulting from the works. Liability Insurance covers these risks, which includes Employer’s Liability and Worker’s Compensation, along with General Third Party Liability and Public Liability protection.

It is possible that a contractor may default under the terms of the contract and reimbursements. Other coverage provided by the Contractors All Risk Policy, the Erection All Risk, and Civil Engineering Completed Risks will give coverage for construction projects to protect against any losses which can be caused by a myriad of factors. These can compensate for damage that results from theft, burglary, civil unrest and strikes, riots, flooding, earthquakes, hurricanes and fires.

There is also a policy that will compensate the employer if the construction is not finished as expected; this policy, entitled Advance Loss of Profits, will provide for any anticipated profit lost as a result of this delay. When the amount to be insured is being decided the Contractors All Risks, or Erection All Risks, policies will be involved. The reason being is that these policies protect the construction project against compensation costs due to damage caused by contractor negligence.

You will find that there are few construction projects in which there is only one company working, because more times than not companies will come together in order to finish a project. If this is the case you may have some question about who is responsible for injuries and damages incurred by third party persons. These third parties may include other sub-contractors, project owners and staff, and neighbors, all simultaneously involved.

The responsible party or parties for any loss or injury will be identified. Additionally, the claimants will try to present proof that it was negligent conditions at the build site which are responsible for their loss. This concept is known as “public liability” or “general third party” in legal circles.

If the contractor has gotten a Public Liability policy, he will not have to pay out of pocket any money that he becomes legally obligated to pay. This payout will be the compensation paid to the third party for any damages done to their property or any personal bodily injury incurred. Two factors influence whether compensation will be made, and they are instances where a nuisance resulted from the works, or injury or damage was caused through the contractor’s negligence.

The employer’s liability is akin to the public liability policy. This policy, however, will enable a contractor to provide his employees with compensation for any damage or bodily injuries to their properties. This compensation is dependent upon whether the cause was due to the employer’s negligence or was due to a nuisance which resulted from the works.

Because of the factories act and other related safety acts that were designed for the protection of employees, contractors have statutory responsibility to guarantee employee safety. These regulations incorporate the fact that an employer needs to provide a working environment which is not dangerous, including nontoxic materials, and the correct tools and equipment to complete a project. The employer is also responsible for choosing workers who are able to complete these jobs, and supervise their workers properly while at the build site.

The manufacturing industries depend upon the welder machines for the successful development of its products and there are different types of welders that are used for different purposes. A welder is a machine or equipment that the welder uses to make the weld. Whatever the metal may be and let it be of any type of welding, it needs the appropriate welder machine to do the welding process. In this article, let us see the different types of welders used in welding industry, so at the end of this article you would gain some knowledge about the welders.

Let us start with arc welder and arc welding because it is the basic type of welding process. Arc welding is also called as stick welding and this is one of the most widely used welding processes. This power arc welder is a portable stick welder and these units are ideal for the hobbyist, general repair, fabrication, commercial industrial, factory maintenance and agricultural usage. It is of inverter type with Infineon IGBT type with 240 input volts and of 160 or 200 amps rated output. It has a digital amperage display with low power consumption and widely used because of its low capital and running costs.

If you need to weld stainless steel, aluminum, magnesium and copper, it is better to buy the best tig welder that allows for stronger and higher quality welds. The tig welder exists of different types such as power I- tig 200, power tig 200 DX, power tig 225 LX, power tig 250 EX and power tig 315 DX. Each and every tig welders are of inverter type and exist in single and three phase with a maximum of 220 volts. Different tig welders are used for different metal thickness and have high duty cycles with IGBT electronics.

Mig welder can be also called as aluminum Mig welder because it was developed to weld only aluminum, but today it is also used to weld steel, and the Mig welder is famous for its ease and process. As like tig welders, the mig welder also exist in different types such as power I mig 160, 200, 205 and power I mig 250 p. The Mig welder has an input voltage of 240v with different rated output amps and it is generally used in automotive, fabrication and general repair. It has precise display for voltage and consumes less power.

Apart from welder machines, the welding industry needs to be equipped with plasma cutters. It is a powerful plasma cutting equipment that cuts steel and metals of different thickness. The plasma cutter with inverter technology suits everyone needs and they use the latest technique to cut the metals. It is typically used in many applications and all the power plasma series uses the pilot arc technique to initiate the arc, except super cut power plasma series. Plasma cutter is used in industrial, general repair, fabrication, automotive and other industrial applications. When you prefer for the welder machines, you can buy used tig welder, cheap Mig welder and reconditioned tig welder depending upon your budget and use.

Lighting the torch & setting the flame: (FIRST, put on gloves, goggles, long pants, etc!)

1) Turn on the “gas” tank valve about 1/2 turn (believe me that’s plenty)(set the gas at 10-12 PSI).
2) Open the O2 (oxygen) tank valve nearly all the way. (set the O2 cutting pressure to about 40 PSI, via the twist knob at the O2 gauges).
3) With your striker (lighter) in one hand, crack open the acetylene valve on the torch handle & light it. (red hose).
4) Open the acetylene more till the flame separates from the tip, then back it off till it “re-attaches”. (that’s the max you can get from the tip you’re using).
5) Now open the O2 on the torch handle till the blue flames are short & bright. (green hose)
6) Then push on the long high pressure valve on the handle &  re-adjust the O2 valve on the handle till the blue flames are clear & bright.
7) You’re THERE!

Check to see that all the holes in the tip end are allowing full flow. If not, shut it off & clean the tips.

To shut the torch off: close the “gas” valve on the torch handle, then the O2 valve. Then I usually crack the high pressure valve (on the handle) to blow out any gas left.

Using the cutting torch:
1) Look around to see where your sparks will be going & protect stuff or move it, if needed.
2) See that the piece you cut off has a safe place to drop. (If you catch it you will want to put it down right away).
3) Now, put the tip of the blue flames on an edge of the material & let it get red hot (or start sparking).
4) Then push the cutting valve & slowly start moving in the direction you want to cut.
5) The thickness of the piece will determine how fast you move. But keep moving fast enough so that the sparks are flying at least straight down, or actually angled slightly ahead of the tip.
6) If you go too slow, the molten metal won’t clear out & will tend to still hold the pieces together at the end of the cut.
7) Going too fast will cause the sparks to lag behind the cutting tip, & not cut through good enough.
Note that I tend to very slightly angle the flame & tip in the direction of the cut. For me this helps to pre-heat the metal & keep the sparks angled slightly forward.

Once you’ve practiced a few times, the cuts will look pretty decent.
* You will then be able to think more about using various ways to help you steady your hands & use guides.
* Using 2 hands is a common practice of the pros.
* Using a heavy bar as a guide is a quick way to help you make a straight cut.
* Also using clamps on various other straight edges, like angle iron or channel, can help too.

Other torch and cutting tips:

1) For long cuts on plate steel you may need to use a clamp across the beginning of your cut to  hold things in place more firmly.
2) I use a torch many times to cut heavy material instead of a band saw, then do some grinding to dress it up.
3) Use a chalk line to mark really long cuts.
4) A regular cutting tip can also be used for heating smaller jobs, just keep away from the cutting valve.
5) When you get better at the “trigger control” of the cutting valve, you can use it to gouge out cracks for better penetration.
6) You will need to get a O2 bottle that is at least 1/2 again as tall as the acetylene bottle because you will be using MUCH more O2 versus gas.
7) On thicker materials you can use your torch to bevel the edges for better penetration (versus grinding).
Lots of popping sounds & splatter likely means that your tip is too close to or touching the molten metal (or your tip orifices are plugged, or BOTH).
9) Make sure when you have your tanks off, that the gauges read ZERO! (example: if the O2 reads 20 when it’s off, then when you set the 40 PSI cutting pressure, you really only have 20 PSI that you’re cutting with! This happened to me).
10) When you need to cut off just the weld of a job, it takes a CAREFUL touch of the cutting valve & you need to watch for where the pieces join each other & try to not cut into the pieces you’re trying to save.

Related Acetylene Torch Articles

Essentially a small MIG welding machine, gasless MIG welders are a very hand thing to have in the shed at home.

Using gasless mig wire they can very easily weld the thickness of metal that a home welder would need to work with.

There are many things that you can weld with one of these machines.

A small gasless machine can weld mild steel sheet metal, box sections, angle iron and plate. What it really comes down to is how much power the mig welder has. The thicker the metal, the hotter the weld needs to be. You can weld up box trailers and do repairs to them. You can make modifications to you street cars or race cars. Any little welding project a gasless mig welder is handy to have.

110v mig welder, 115 and 120 volt gasless wire feed welders.

There are a range of smaller machines that you can get. These are the smallest of the small and have input voltages in the range of between 110volts and 120volts. This is all depending on which country you live in and also what part of the country you live in. In general these machines have the least amount of power available for mig welding.

220volt and 240 volt MIG

Now the machines in this range of 220 volts to 240 volts will offer the most power that you can get from a single phase mig welding machine.

Duty cycle-beware of this….

Mig welding duty cycle will also vary between machines. In a nut shell you want a machine that has a higher rated duty cycle value. This will mean that it can weld longer than a machine will less duty cycle.

Pros and cons of these little units

The biggest thing going for the small machines is that they are now really cheap to buy. You can pick one up just about anywhere and they are much better and easier to use for welding jobs at home. They are light and small which makes them reasonable portable. You can pick them up and put them in the car to take around to a mate’s place quite easily. Try doing that with an industrial mig.

On the downside, these machines are usually cheap mig welders and as a result some are not worth buying. Sometimes spare mig welder parts are hard to get for these machines too.

And finally gasless mig wire is rather messy and spattery compared to normal mig wire and using welding gas.

To sum it all up…

If a little bit of spatter doesn’t worry you these gasless mig welders are a good investment for and workshop. You can also get dual purpose machines which can do both flux core and solid mig wire.

I am gonna be taking welding classes soon and I want to get a head start on the math. What should I know?
Wow all great so far thanks. keep it coming!