The other equipments serves the same function as in case of oxyacetylene gas welding. Oxygen acetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene. Cutting of metals by means of flame has many advantages over other methods, specially when the metal is of irregular shape. The spark lighter is used to ignite the oxyacetylene mixture at the tip of cutting torch. The oxyacetylene process produces a high temperature flame, over 3000 degrees c, by the combustion of pure oxygen and acetylene. Oxy fuel gas cutting and welding operation of oxy fuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot.
Guidelines are given on the principal health and safety considerations for oxyacetylene welding to ensure safe welding practices. Unfortunately, gas welding isnt taught as regularly as it used to be. Oxy acetylene cutting safety in agriculture osha standard 1910. Oxy acetylene welding ofw fundamentals pressure settings. Oxyacetylene welding oaw the oxyacetylene welding process uses a combination of oxygen and acetylene gas to provide a high temperature flame. By adding oxygen gas, torch outfits can produce flame temperatures of 5,620 degrees. A shade made especially for oxyacetylene, shade 56 works well. Inspect regularly and replace damaged nonreturn valves. How to properly light, adjust and shut down an oxyacetylene torch harris products group. Oxyacetylene, commonly known as oxyfuel, is one of the oldest welding processes, though in recent years, it has become less popular in industrial applications. Fusion weldinga welding process that joins metals by heating them to be a melting point and allowing them to fuse or flow together. Acetylene pressures are for tips with light preheating flames for use on clean plate.
Safety for oxyacetylene welding thompson rivers university. Lighting, adjusting and shutting down an oxygenacetylene torch is easy especially when following the proper procedures. In this video we will discuss about what is oxygen acetylene welding. The welding torch is opened, both gases are combined together and it is burned due to more oxygen mix to acetylene. Oxy acetylene welding oxy acetylene, commonly known as oxy fuel, is one of the. Once you are familiar with the equipment and procedures, you should be able to make. Setup and shutdown procedure for oxyfuel cutting torch a handout containing the highlights of the video titled setup and shutdown procedure for oxyfuel welding.
Safe operating procedure sop oxygenacetylenehidrogen welding and cutting improper use of oxygenacetylenehidrogen torches places employees at increased risk of serious injury. Storage keep cylinder caps in place when cylinders are not in use or are being transported. By using the proper tips, rods, and fluxes, almost any metal can be welded, heated, or cut using the oxyacetylene process. The oxyacetylene torch can be used for various tasks. The chemical action of the oxy acetylene flame can be adjusted. A comprehensive treatise on the practice of welding cast iron, malleable iron, steel, copper, brass, bronze, and aluminum by the oxyacetylene methods, together with concise information on the equipment required for both welding and cutting by this process. Oxyacetylene cutting safety in agriculture osha standard 1910. Setup and shutdown procedure for oxy fuel cutting torch. Competencies given a functional oxyfuel gas unit, instruction and demonstration of use, each student will be able to. Video an introduction to gas welding oxyacetylene oxyacetylene gas welding is commonly used to permanently join mild steel. Working safely with acetylene page 4 of 5 health and safety executive maintain nonreturn valves fit nonreturn valves often called check valves on the torch, to prevent back feeding of gas into the hoses. The oxyacetylene flame produces an intense bright light that causes discomfort and possible injury to the eyes. Hoses used to convey acetylene, oxygen and liquefied petroleum gases lpg conforming to as35.
When using an oxygenfuel gas process to perform welding or cutting, the. C maintained for melt the commercial metal welding. 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. It can be used for cutting steel, welding steel, brazing and for heating metal.
Oxyacetylene welding, commonly referred to as gas welding, is a process which relies on combustion of oxygen and acetylene. Oxy fuel or oxy acetylene welding are gas welding procedures that were invented in the early 1900s. Employees have said that it takes too long doing it this way, but this is the only. Fundamentals of gas cutting and welding ced engineering. Instruction describes the procedure for the inspection, testing and identification requirements of portable and mobile oxyfuel gas systems for welding, cutting, heating to. Cutting with the oxyacetylene process is just the opposite from that of welding. Setup and shutdown procedure for oxy fuel cutting torch a handout containing the highlights of the video titled setup and shutdown procedure for oxy fuel welding. And this welding process is still very popular today, mainly because it does not require much equipment, and does not require power. Oxy fuel welding includes any welding operation that makes use of a fuel gas combined with oxygen as a heating medium. The oxyacetylene torch is a safe tool if used properly.
In modern steelage the steelmakers cut iron and steel by oxyacetylene, oxyhydrogen, oxy propane, oxynatural gas cutting blowpipes easily, speedily, and cleanly. Careless use of oxyfuel torches has caused many fires. Arc welding also uses intense heat, but the heat is generated through an electric arc. Welding, cutting, and brazing welding is a process that joins materials together by melting a metal work piece along with a filler metal to form a strong joint. In order to comfortably and safely see the flame when welding or cutting, welding goggles must be worn. However, when dissolved in acetone, it can be compressed into. Oxygenacetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene.
When mixed together in correct proportions within a handheld torch or blowpipe, a hot flame is produced with a temperature of about 3,200c. In order to discuss the various aspects of welding, cutting and brazing safety, first we need to cover the basics in this first module. Nonreturn valves will not stop a flashback once it has occurred. If the oxy welding cutting equipment is to be operated in a dangerous or hostile environment, the userclient. Oxygen acetylene welding easily understand youtube. Oxyacetylene torcheshow to use use of a cutting torch is not something that just anybody should do without training. Adjust the oxygen regulator screw by turning it clockwise until the recommended pressure is achieved. The latter might be con sidered constructive and the former destructive. Component specification nfq level 3 oxyacetylene welding. The welding shall be done by the manual oxyacetylene process for welding of butt welded joints and fillet welded joints on steel pipe. In addition to the purposes of welding connecting, gas welding can also be used as preheating, brazing, cutting and hard facing.
Oxyacetylene welding oxyacetylene, commonly known as oxyfuel, is one of the. Inspection of portable and oxy fuel gas systems wi37. Pass a written test on safety and operation procedures on the oxyacetylene unit with a minimum of 100 accuracy. Appropriate footwear with substantial uppers must be worn. Fundamentals of gas cutting and welding cedengineering. Oxyfuel gas cutting and welding operation of oxyfuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot. Oxyfuel welding ofw is a group of welding processes that join metals by heating them with a fuel gas flame or flares with or without the application of pressure and with or without the use of filler metal. Torch outfit basics for beginners oxygenacetylene welding.
Safe operating procedures sop 15 oxy acetylene cutting. A mixture of oxygen and acetylene, burns as an intense focussed flame, at approximately 3,500 degrees centigrade. However, it is still widely used for a variety of applications. Its a shame, because oxy acetylene welding teaches you how to manipulate a.
The real tool of the oxyacetylene welding process is the flame, not. An approved code of practice is a practical guide to achieving the standards of health. Standard operating procedure sop acetylene and oxygen. Safety in gas welding, cutting and similar processes page 3 of 11 preventing fire from heat, sparks, molten metal or direct contact with flame the flame from an oxyfuel gas torch often called a blowpipe is a very powerful source of ignition. Gas welding and cutting oxyfuel welding, commonly referred to as oxy welding or gas welding is a process of joining metals by application of heat created by gas flame. Torch outfits produce heat energy by burning acetylene gas. When opening tank valves, always open valves slowly so pressure on regulators is. Oxyfuel oxyacetylene welding a guide to gas welding. The first 4steps below will talk about putting a new tank on your oxyacetylene set and starting with step 5, how to use a cutting torch set.
In this process the mixture of oxyacetylene and oxygen presented, which is flow to the burning process and controlled by control valve. However, if it is used incorrectly, serious injury can occur to you and the equipment. When mixed together in correct proportions within a handheld torch or blowpipe, a relatively hot flame is produced with a temperature of about 3,200 deg. Safety in gas welding, cutting and similar processes. Safe operating procedures this sop should be used in conjunction with relevant machinery manuals and manufacturer recommendations. Refer to the victor acetylene cutting tip chart in appendix a or welding nozzle flow data in appendix b for the recommended pressures.
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