Gas welding or oxygenacetylene welding is made possible because there are some gasses that burn at extremely high temperatures. With this process, oxygen as well as acetylene are fed from holding tanks to a torch and then when needed ignited. Acetylene poses an extreme fire hazard when accidentally released. Acetylene may decompose explosively at elevated temperatures and pressures.
All hose in use, carrying acetylene, oxygen, natural or manufactured fuel gas, or any gas or substance which may ignite or enter into combustion, or be in any way harmful to employees, shall be inspected at the beginning of each working shift. Oxy acetylene cutting safety in agriculture osha standard 1910. At no time should the withdrawal rate of an individual acetylene cylinder exceed 17 of the cylinder contents per hour. Comes with hoses, welding and cutting torches, goggles, tip cleaners and striker packed in a heavy duty molded storage case. All hose in use, carrying acetylene, oxygen, natural or manufactured fuel gas, or any gas or substance which may ignite or enter into combustion, or be in any way harmful to. Nfpa standard 51, oxygen fuel gas systems for welding and cutting, obtainable sames as item a. Learn about the safety of central welding supplys acetylene cylinders. In addition to the purposes of welding connecting, gas welding can also be used as preheating, brazing, cutting and hard facing.
Smith regulators are available in economy and premium grades for hobbyists and pros. Oxygen acetylene welding, or oxy acetylene welding, is a process for joining metals that was introduced in 1903 by thomas wilson. Provide adequate fire protection during emergency response situations. Always turn acetylene on first when igniting torch. Acetylene is lighter than air, and may spread long distances. These highly combustible gases call for extraordinary safety. By varying the relative amounts of acetylene and oxygen, a welder can produce different flame atmospheres and temperatures as he requires.
The chemical action of the oxy acetylene flame can be adjusted. Welding nozzle flow data metal thickness tip size drill size oxygen pressure psig acetylene. Product title oxygen acetylene welding kit type cutting torch weld. An oxy acetylene torch is an affordable and versatile tool used by many people to heat, weld, solder, and cut metal. It uses extreme heat to function, and setting it up properly is one of the most. Fundamentals of gas cutting and welding ced engineering. The flux may be used to deoxidize and cleanse the weld metal. This combination makes a gas that burns at an incredible 5500 degrees fahrenheit. How to store cylinders store cylinders upright and secure them with a chain, strap, or cable to a stationary building support or to a proper. Setup and shutdown procedure for oxyfuel cutting torch a handout containing the highlights of the video titled setup and shutdown procedure for oxyfuel welding. Oxygen and acetylene welding kit harbor freight tools. Common compressed gases include acetylene, carbon dioxide, argon, hydrogen, nitrogen, air, propane, and oxygen. It is a welding process that melts and joins the metals by heating them with a flame caused by a reaction of fuel gas and oxygen. Oxygen is an accelerant, it causes every thing it comes in contact with to burn hotter and faster.
The oxyacetylene flame at 3100c is the hottest flame available for welding mild steel. Gas welding uses tanks of compressed oxygen and fuelmost commonly acetylenefeeding these gases through hoses to a handheld torch, producing an. When mixed together in correct proportions within a handheld torch or blowpipe, a hot flame is produced with a temperature of about 3,200c. Heating tip uses a tremendous amount of oxygenacetylene. Oxy acetylene welding oxy acetylene, commonly known as oxyfuel, is one of the. Oxy acetylene welding is a welding process manually, in which the surfaces to be joined, which is warming to melt by a gas flame oxyacetylene with or without filler metal, where the connection process without emphasis. The flux melts, solidify and forms a slag on the resultant weld bead. Adjust acetylene to bring flame back down to almost touching the tip. No welding cutting is allowed when methane concentrations meet or exceed 1. It is extremely versatile, and with enough skill and practice you can use this type of welding for virtually any metal. Unfortunately, gas welding isnt taught as regularly as it used to be. Approximately 20% of acetylene is supplied by the industrial gases industry for oxyacetylene gas welding and cutting due to the high temperature of the flame. The chemical action of the oxyacetylene flame can be adjusted by changing the ratio of the volume of oxygen to acetylene, using the valves on the torch or.
This means if a oxygen bottle is leaking, the gas will settle. Oxygen and acetylene together in a flame provide the heat necessary to melt most metals. Do not saturate your clothing with oxygen or acetylene. Oxyacetylene cutting safety in agriculture osha standard 1910. Oxyacetylene is the hottest burning common fuel gas. Cylinder sizing can be a little daunting until you get the hang of it and our cylinder sizing charts make short work. Guidelines are given on the principal health and safety considerations for oxyacetylene welding to ensure safe welding practices. Oxy acetylene welding ofw fundamentals pressure settings. Oxyacetylene welding is a very common welding process that dates back to 1890s, wherein oxygen and acetylene are used as the two major welding gases. If additional flow capacity is required, use an acetylene manifold system of sufficient size to supply the necessary volume. Together, oxygen and acetylene gas mixtures create one of the hottest flames known up to 6,330 f 3499 c. If there is too much acetylene, flame breaks away from the tip. Knowing your cylinder size can save you precious time and heartache.
Video an introduction to gas welding oxyacetylene oxyacetylene gas welding is commonly used to permanently join mild steel. The oxyacetylene torch can be used for various tasks. Some of our more popular gas welding and cutting equipment includes. French engineers edmond fouche and charles picard became the first to develop oxygenacetylene welding in 1903. Feb 15, 2019 video for my high school students to follow as they learn the process of using the oxy acetylene torch acetylene welding 1. The mixer is where you will attach welding tips, cutting attachment, and the rosebud heating torch. In fact, the oxyacetylene flame burns at 6000 f, and is the only gas flame that is hot enough to melt all commercial metals. Apr 03, 2017 unfortunately, gas welding isnt taught as regularly as it used to be. Pass a written test on safety and operation procedures on the oxy acetylene unit with a minimum of 100 accuracy. The oxy acetylene torch can be used for various tasks. Heating tip uses a tremendous amount of oxygen acetylene. Hose, for cutting welding and brazing questions page 2. The oxyacetylene process produces a high temperature flame, over 3000 degrees c, by the combustion of pure oxygen and acetylene. The chemical action of the oxyacetylene flame can be adjusted.
Norris cylinders monolithic porous mass safety training. A practical manual of oxy acetylene welding and cutting with a treatise on acetylene and oxygen, by p. The oxy acetylene torch is a safe tool if used properly. When using oxyacetylene a special torch or cutting blowpipe is necessary. Oxygen and acetylene use and safety ar training updated 2012 dmme division of mineral mining. Oxygen and acetylene in approximately equal proportions are burnt at the small jets. Lighting, adjusting and shutting down an oxygenacetylene torch is easy especially when following the proper procedures. Combustion of acetylene with oxygen produces a flame of over 3,600 k 3,330 c. Cylinder sizing can be a little daunting until you get the hang of it and our cylinder sizing charts make short work of learning and knowing the cylinders you have on hand. Lincoln electric cut welder kit with torch, oxygen and. Because of the need for supplemental oxygen from the atmosphere, the acetylene oxygen flame cannot be used inside of pipes or structures subjected to oxygen depletion from gas welding. Acetylene is an asphyxiant and presents a significant health hazard by displacing the oxygen in the atmosphere.
May displace or reduce oxygen available for breathing especially in confined spaces. A practical manual of oxyacetylene welding and cutting with a treatise on acetylene and oxygen, by p. Cylinder sizing charts trico welding supplies, inc. May 14, 2017 gas welding uses tanks of compressed oxygen and fuelmost commonly acetylenefeeding these gases through hoses to a handheld torch, producing an extremely hot and easytocontrol flame. The flame heats the base metal to its fluid or puddle state.
Competencies given a functional oxyfuel gas unit, instruction and demonstration of use, each student will be able to. Oxygen and acetylene in approximately equal proportions are burnt at the small. Propane, propylene, or oxy acetylene, welders supply has a regulator for your rig. A mixture of oxygen and acetylene, burns as an intense focussed flame, at approximately 3,500 d. Video for my high school students to follow as they learn the process of using the oxyacetylene torch. Oxyfuel welding, heating and cutting process manual installation and operation instructions before installing or operating, read and comply with these instructions controls corporation of america 1501 harpers road virginia beach, va 23454 to order call 18002250473 or 7574228330 fax 7574223125 april 2001 supersedes.
Welding gas cylinder size chart for high pressure, acetylene, propylene and propane. Do not open the acetylene valve more than one and one half turns. Before and while lighting the flame, keep the tip pointed away from the body. This combined with a neutral welding atmosphere and suitable filler. Setup and shutdown procedure for oxy fuel cutting torch. Oxygen acetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene. The oxyacetylene torch is a safe tool if used properly. At this point, the gas welding rod copper coated steel is dipped into the puddle. Continue to add oxygen until neutral flame is established. Temperatures from the combustion of oxygen o2 gas and ethyne, or acetylene c2h2 gas can reach 3,340 degrees celsius, which is hot enough to cut through steel.
Several gas combinations can be utilised for producing a hot flame for welding metals. Oxyacetylene welding oxyacetylene, commonly known as oxyfuel, is one of the. Many gases are flammable, explosive, toxic, or a combination. It can be used for cutting steel, welding steel, brazing and for heating metal. Always turn the acetylene cylinder so the valve outlet will point. The valve of a fuel gas cylinder shall not be cracked where the gas would reach welding work, sparks, flame, or other possible sources of ignition. Nfpa standard 51, oxygenfuel gas systems for welding and cutting, obtainable sames as item a. Fundamentals of gas cutting and welding cedengineering. The cuttingnozzle has a number of small jets and a space around the central large jet for oxygen pressure. Oxyacetylene welding oxyacetylene oa welding is one of the many types of welding supported by the prl. Turn off the valve on the cutting torch for the oxygen first, then the acetylene.
Its a shame, because oxy acetylene welding teaches you how to manipulate a heat source better than any other type of welding. A mixture of oxygen and acetylene, burns as an intense focussed flame, at approximately 3,500 degrees centigrade. Lighting, adjusting and shutting down an oxygenacetylene torch is easy. Oxyacetylene torcheshow to use use of a cutting torch is not something that just anybody should do without training. However, if it is used incorrectly, serious injury can occur to you and the equipment. Common mixtures of gases are oxygen and acetylene, oxygen and hydrogen, oxygen and other fuel gas, and air and acetylene. How to properly light, adjust and shut down an oxyacetylene torch harris products group.
Lincoln electric cut welder kit with torch, oxygen and acetylene regulators, 316 in. How to set up an oxy acetylene torch with pictures wikihow. Oxyfuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal heating for bending and forming and oxyfuel cutting. Acetylene pressures are for tips with light preheating flames for use on clean plate. Turn on acetylene regulator and adjust to 35 psi 15 psi maximum. Welding 5 psi acet5 psi oxy cutting 5 psi acet20 psi oxy. No weldingcutting is allowed when methane concentrations meet or exceed 1. Always have the spindle key in the acetylene cylinder valve. For more information on welding gases and the welding process visit. This complete oxy acetylene welding kit is designed to handle a broad range of cutting, welding, and heating applications.