Welder World Blog

Posts Tagged ‘torch’

Oxy-fuel cutting and oxy-fuel welding can be described as the processes of using oxygen and fuel gases to either cut or weld metals. There are some striking differences between these two processes. In the first process, a cutting torch is made use of for heating ferrous metal to a temperature of around 980 degree Celsius. An oxygen stream is being trained on a hot metal that combines with iron chemically which later flows from the kerfs, or cut in the form of slag of iron oxide. In the second process, a ‘welding torch’ is made use of for welding metals.

Torches that burn the inside fuel with air (atmosphere) cannot be termed as oxy-fuel torches. They stand out owing to the use of single tank. This is because oxy-fuel cutting/welding requires oxygen, fuel, and two tanks. It’s not possible to melt some of the metals with single-tank torches. Hence, these torches can be used for brazing and soldering, but not for welding. A metal-cutting torch is better known as hot blue spanner, blue wrench, hot wrench, smoke wrench, and gas-axe.

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Types of Torches: The torch can be defined as the part held and manipulated by the welder to get the weld made. It possesses a valve and connection for oxygen and the same things for fuel gas, a handle to obtain the grip, an integrating chamber (angularly set) where there occurs a mixing of oxygen and fuel gas, with a tip where formation of flame takes place. The fuel gases used along with oxygen include propylene, propane, hydrogen gas, MAPP gas, Liquefied Petroleum Gas (LPG), and the most widely used is acetylene.

Injector Torch: It can be defined as an archetypal oxy-fuel torch, also known as an equal-pressure torch. It carries out the mixing of mere two gases. The injector torch operates in such a way that high pressure oxygen comes out of the tiny nozzle present in the torch head, and the fuel gas gets dragged towards it via the venturi effect.

Rose-bud Torch: The use of this torch is to carry out the heating of metals for straightening, bending, etc. It is generally used where a huge area requires heating. It produces a rose-bud shaped flame at the end, hence the name. This torch can carry out the function of heating small areas like rusted bolts and nuts as well. However, here, filler rod won’t be used with torch.

Cutting Torch: The head of the cutting torch is used for cutting metal. Its identification details are as follows: The inside of the torch consists of a combination of oxygen and acetylene. It helps in producing flame of a high temperature. It consists of 3 pipes going to a nozzle at 90 degree. It also contains an oxygen-blast trigger which blasts away the material during its cutting by the way of providing oxygen.

Welding Torch: The welding torch consists of either 1 or 2 pipes running towards the nozzle without oxygen-blast trigger. As the name suggests, it performs the function of welding.

how to cut metal with an oxygen and acetylene torch. This is just a basic overview of how to use an acetylene torch to cut metal. cutting 1/2 inch steel with a torch and also how to pierce metal with the torch. This is a cheap harbor freight welding torch

More Acetylene Torch Articles

A tig torch can be used to cut metal, but it is not as good as a plasma torch.
cutting metal wih a tig torch requires a small tig cup, more argon flow, and a larger electrode and more amps than welding.

A torch lighter usually refers to a butane torch or propane torch used to light the flammable gases butane and propane respectively. Be it for smokers or for campers, here are some tips about torch lighters in general.

Propane or Butane torch lighter—which one to pick?

Both the gases are similar in characteristic, but when it boils down to efficiency, butane wins hands down. This literally means that for the same quantity of gas, butane would provide more energy than propane. Additionally, butane is also available at a cheaper price than propane. Unfortunately, unlike propane, butane tends to freeze up as soon as the temperature drops below 0°C and it cannot be handled by being shaken around.

These limitations can prove disadvantageous, if you are a camper with a backpack and if you wish to hike in the cold outdoors. This is one reason why campers and hikers prefer propane torch lighters to the butane alternative, but it does not make much of a difference to smokers in moderate climates. Propane is definitely capable of handling more rough treatment than butane, but if you are using a torch lighter in a place where the temperature is on the higher side, then there is no reason to opt for the latter. In addition, in today’s market, special butane torch lighters are available, which can achieve higher temperature much quicker than the traditional ones. This is good for campers and smokers both, since they have no need to hold the flame for a very long time to light the fire.

Torch lighters can help fix simple home hardware problems—unbelievable but true! You must have come across daily problems at home, wherein you have found it difficult and sometimes impossible to loosen the stray stubborn nut or bolt. Greasing or hammering also doesn’t seem to help sometimes. This is because of the natural weld because of years of corrosion and it could hold up your work for hours. However, one of the best ways to deal with these simple home problems is to use heat.

A regular lighter will not help, but you do not need to call in professionals for the same —just use a propane torch lighter. If you use it indoors, ensure plenty of ventilation. In addition, do not fret about the cost. There are mini propane torches available for household use, which could be just what you are looking for.

Finally, traveling with torch lighters and matches can be cumbersome, especially in airplanes. Most liquid-filled lighters or disposable butane lighters are all right for plane travel, but cannot be checked in. Torch lighters are disallowed completely. Used by many pipe smokers, it can create a needle-like flame capable of being reaching up to 1370°C — much hotter and more intense than the less malevolent cigarette lighter.

Lighting Charcoal in a Weber Smoky Mountain Smoker with a 100000 BTU Propane Torch (aka “Weed Burner”). Only really needs 1 minute or so but went for 2 minutes for viewing purposes. These can be had for -50 online easily and bolt right up to any standard Gas Grill Propane tank.
Video Rating: 4 / 5

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Dubai, UAE: Property in Dubai reached new heights this month as residential development ‘The Torch’ at Dubai Marina officially became the world’s tallest residential building.

Developed by Select Group, one of the largest private property developers in the United Arab Emirates, The Torch beat the Q1 Tower on the Gold Coast of Australia by just twenty five metres when its completion was announced earlier this month.

Designed by award winning architects Khatib and Alami, ‘The Torch’ rises 351 metres (1152 feet) into the Dubai sky. The tower has 86 floors containing a total of 676 apartments along with a gym, a sauna, a steam room and an eight level garage.

It is the only one hundred percent residential project ever to break the world’s tallest tower record; under Guinness Book of Records regulations towers must be made up of ninety percent or more residential units to be eligible for the title.

“The Torch, a defining landmark of Dubai Marina skyline, offering stunning views across the Jumeirah beachfront, is a sold out property and a testimony to Select Group’s continuing commitment to Dubai and the potential of its property sector as it gradually emerges from the shadows of the impact of the global financial crisis,” commented Mr. Rahail Aslam, CEO of Select Group.

“This is a milestone for the Group and we are proud to be contributing to the list of global firsts Dubai has achieved over the years. We would like to position The Torch as our tribute to this cosmopolitan city which despite the downturn in the real estate sector and fluctuations in the economy has shown resilience to weather the extreme economic downturn,” he added.

The Torch is the latest development to be completed by Select Group at Dubai Marina. Others include; The Point which was completed in 2009 and reaches a height of 125 metres with 27 floors and 188 apartments; and Botanica, a 41 floor development made up of 360 residential units.

Despite the difficulties faced by property developers during the global economic downturn, Select Group has reported their properties at Dubai Marina are already enjoying up to 85 percent occupancy this year.

Prices at The Torch start from US5,000 for a one bedroom apartment with a balcony and views spanning the length of the Dubai Marina and Jumeirah Beach.

Rebecca Smith
Ocean Villas Group

Article source…

In this video we can talk about setting up a oxygen and acetylene torch kit.
Video Rating: 5 / 5

More Torch Set Articles

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

Blackberry torch 9800 deals- Enlighten your Christmas with joy and pleasure

Best phone from the family of Blackberry is available on offline and online with so many mind blowing offers and free gifts.

Latest technology has upgraded the mobile phones with all modern features. Blackberry always try its level best to satisfy its customers. The Blackberry 9800 Torch is the latest handset from the family of Blackberry which is known for its consistent work.

This smart handset comes in with a 3.2 inches high resolution colored TFT capacitive touch screen display, full QWERTY keypad for smooth typing and optical track pad.

It has amazing camera of 5 mega pixel and also having Geo-tagging, continuous auto focus, image stabilization, high resolution and LED flash to capture high quality photographs and high definition video recording.

It  has internal memory of 4 GB, 512 MB RAM and 512 MB ROM and  can be expanded up to 32 GB using micro SD memory slot cards.

Blackberry torch is a smartphone with excellent performance. The mobile phones comes in with Wi-Fi and allows you to browse fast speed internet.

The Blackberry Torch 9800 has many nice connectivity options like Bluetooth, GPRS, EDGE, USB interface for data transfer with fast speed.

The Blackberry torch 9800  endorse both 2G GSM network as well as 3G HSDPA  and HSUPA frequency band, and can easily switch between various frequency bands to provide world wide roaming to its device users.

You can discover these blackberry torch deals on various web portals  within few clicks on Internet. And find best deal for you.

These deals are offered by almost all famous network providers of UK   such as Vodafone, Virgin, Three, T-Mobile, O2,Orange etc……….The Blackberry Torch 9800 contract mobile phone deals are the most popular deals of UK due to its offers and schemes.

Blackberry torch 9800 O2 contract deals are good deals. So Folks don’t waste your precious time, utilize it by making smart choice and surprise your friends and loved one’s with this amazing handset.

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Brazing refers to the joining of two metals. It is easy to do and substitute the welding part quite efficiently. It most often makes use of torches to join two metals. Propane torches are one such equipment which is popularly used for brazing. These can be easily sourced from any of the hardware store or a plumbing supply house. Metalsmith and jewelry supply firms too can provide propane torches. Mentioned below is the basic process of brazing two metals using a propane torch. Take a look:

Materials Needed

-Propane Torch
-Brazing Wire

Step 1
The very first step in propane brazing is to clean the metal that you plan to braze. For cleaning, one can make use of sandpaper to remove oxidation while acetone should be used to get rid of grease. Also, use simple soap and water solution to remove the remaining dust particles from the metal surface. Now once all the dirt and grease is removed from the metal, rinse it with water and let the clean metal air dry completely. It might take a time of few hours.

Step 2
Next, put the metal over a work surface which is fire-safe. Then arrange the metal to be brazed properly so that it does not move from the point it has been placed. One should make use of either binding wire, or a third hand or a vise for holding the two metals together as depending on gravity alone for handling the metal in place would not be a good idea.

Step 3
Now the next step in brazing process is to heat both the metals that you plan to join together. As soon as the metals arrive at the perfect brazing temperature, brazing wire needs to be applied to the seam. Keep heating the brazing wire till the time it melts into the seam.

Step 4
Lastly, let the metals cool down to the room temperature and you are already done with the brazing process using propane torch.

To know more about torch brazing, click here.

• Protect your eyes with these convenient and comfortable goggles
• Fit securely and comfortably with the soft PVC frame and adjustable strap
• Feature with 4-vent ventilation provides additional comfort
• Switch easily between tasks with the convenient flip up lenses
• Meet and exceeds ANSI Z87.1 standards

Product Description
Protect your eyes with these convenient and comfortable Welding and Torch Safety Goggles. The soft PVC frame along with adjustable strap ensure a secure and comfortable fit, while the 4-vent ventilation provides additional comfort. Flip-up lenses style lets you switch easily between tasks without taking off the goggles. These goggles meet and exceeds the ANSI Z87.1 standards.

Neiko Comfort-Fit Welding & Torch Safety Goggles – Flip-Up Style, ANSI Approved

• Protect your eyes with these convenient and comfortable goggles
• Fit securely and comfortably with the soft PVC frame and adjustable strap
• Feature with 4-vent ventilation provides additional comfort
• Switch easily between tasks with the convenient flip up lenses
• Meet and exceeds ANSI Z87.1 standards

Product Description
Protect your eyes with these convenient and comfortable Welding and Torch Safety Goggles. The soft PVC frame along with adjustable strap ensure a secure and comfortable fit, while the 4-vent ventilation provides additional comfort. Flip-up lenses style lets you switch easily between tasks without taking off the goggles. These goggles meet and exceeds the ANSI Z87.1 standards.

Neiko Comfort-Fit Welding & Torch Safety Goggles – Flip-Up Style, ANSI Approved

• Victor style torch kit
• Torch is incased in a heavy duty blow molded kit
• Kit can be used for welding, soldering and cutting
• Kit can be used for heating, hardfacing and other applications
• Kit includes combo torch handle

Product Description
Encased in a heavy duty blow molded kit. It is a victor style kit. Kit can be used for welding, soldering, cutting, gauging, heating, hardfacing, and other applications. Includes combo torch handle and spanner oxygen regulator with acetylene regulator welding tips: #0, #2 and #4. Also includes: cutting tip # 2, heating tip, welding goggles, tip cleaner spark lighter and twin 15 foot welding hose combo torch with handle.

Welding Cutting Torch Kit Acetylene Oxygen Victor Style