Oxyfuel welding commonly called oxyacetylene welding, oxy welding, or gas welding in the united states and oxyfuel cutting are processes that use fuel gases or liquid fuels such as gasoline and oxygen to weld or cut metals. Refer to the victor acetylene cutting tip chart in appendix a or welding nozzle flow data in appendix b for the recommended pressures. For more information on welding gases and the welding process visit. Chemistry of oxy acetylene process the most common fuel used in welding is acetylene.
Test all connections for leaks using nondetergent soap ivory and water solution. Oxy acetylene welding oxy acetylene, commonly known as oxyfuel, is one of the. Fusion welding a welding process that joins metals by heating them to be a melting point and allowing them to fuse or flow together. Welded blades were developed in the 1st millennium ce, the most famous being those produced by arab armourers at damascus, syria. Then purge the acetylene gas line and check for constant gas flow. Oxyacetylene welding study guide flashcards quizlet. Oxy acetylene welding is simple in concept two pieces of metal are brought together, and the touching edges are melted by the flame with or without the addition of filler rod. Oct 06, 20 finishing a seam on porch swing frame that i built. The edges of the pipes are bevelled at 70 and butted together with a gap of approximately 2. Turn off oxygen torch valve you will have purged the oxygen line. Smith regulators are available in economy and premium grades for hobbyists and pros.
If not stopped, the fire can travel through and damage the torch, hoses and explode the cylinder. Exposure controlspersonal protection ingredient name exposure limits environmental. Tip size numbers vary among manufacturers, so orifice sizes are shown in number drill. Based on the amount of oxygen taken from the oxygen cylinder, the flame produced in oxyacetylene gas welding is divided into three types.
Fusion weldinga welding process that joins metals by heating them to be a melting point and allowing them to fuse or flow together. See all 26 photos to set the flame, open the acetylene valve on the torch body about 1. Two of these techniques are used to weld flat joints and one is used for allposition welding. When mixed together in correct proportions within a handheld torch or blowpipe, a hot flame is produced with a temperature of about 3,200c. 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. The oxyacetylene torch is a safe tool if used properly. Oxygenacetylene welding, or gas welding, is a process which relies on. Learn vocabulary, terms, and more with flashcards, games, and other study tools. For complete combustion of one unit volume of acetylene, 2. Oxy acetylene oa welding is one of the many types of welding supported by the dp metals shop. Open acetylene torch valve 14 turn, light acetylene.
Welding, technique used for joining metallic parts usually through the application of heat. The electric arc takes the place of the heating flame of the oxy acetylene cutter. Oxyfuel welding commonly called oxyacetylene welding, oxy welding, or gas welding in the u. Depress oxygen lever and make necessary adjustments. Safety for oxyacetylene welding thompson rivers university. Always turn acetylene on first when igniting torch. It is the hottest flame temperature when compared to mapp gas, propylene and propane and natural gas 2,910c, 2,895c, 2,800c and 2,780c respectively. Cutting with the oxyfuel process is just the opposite from of welding. Oxyacetylene welding is simple in concept two pieces of metal are brought together, and the touching edges are melted by the flame with or without the addition of filler rod. Compared to the 3,630 f that a common propane torch burns at, you can see how much better the welding torch is at applying heat. Purge the oxygen gas line and check for constant gas flow. If not, they should be securely fastened with a chain to a workbench, a wall, or a post.
Acetylene, oxygen welding equipment and tools grainger. Rules for classification and construction vi additional. In this process, oxygen gas and electrodes are used to cut roughly mild steel, lowalloy steel, stainless steel, copper, bronze, brass, monel, metal etc. However, if it is used incorrectly, serious injury can occur to you and the equipment. Product name acetylene cas number 74862 product code msds no. Fundamentals of gas cutting and welding cedengineering.
Mar 05, 2014 oxyacetylene welding oaw the oxyacetylene welding process uses a combination of oxygen and acetylene gas to provide a high temperature flame. These highly combustible gases call for extraordinary safety. Oxyacetylene welding is a very common welding process. If you have a cylinder cart, place both the oxygen and acetylene cylinders into it. Tweak the pressure regulator valve until the regulator pressure is constant at. Welding manuals stick mig tig oxy acetylene plasma. Find oxygenacetylene torch accessories at msc industrial supply, serving the metalworking, safety, and mro industries for over 75 years. Acetylene is the best and most versatile fuel gas for welding, straightening, bending, forming, hardening or tempering. Gas welding cutting kit oxy acetylene oxygen torch brazing fits victor whose.
Oxy acetylene torches can be used for a variety of processes, and is one of the many things that can be used to weld aluminum. In addition to the purposes of welding connecting, gas welding can also be used as preheating, brazing, cutting, and hard facing. This oxyacetylene welding tip features a copper spiral mixer designed for a uniform, freeflowing flame. Advanced welding supply company industrial gas information acetylene pressure temperature oxygen pressure 355. The fuel gas commonly acetylene, when mixed with proper proportion of oxygen in a mixing chamber of welding torch. Welding equipment and soldering tools are used to create a joint on a workpiece. Sticker on it says it holds 83 cubic feet acetylene tank 20 tall. The difference between acetylene vs lpg propane as a. Oxygen and acetylene together in a flame provide the heat necessary to melt most metals. Knowing your cylinder size can save you precious time and heartache. This means if a oxygen bottle is leaking, the gas will settle in low areas before diffusing back into the atmosphere.
Globe house products ghp 50ft 14 hd retractable torch welding hose reel oxygen acetylene. Heating tip uses a tremendous amount of oxygen acetylene. The same type of oxyfuel welding apparatus is used in all cases, but the torch welding tip size could be changed depending on the amount of btu heat output. This technique was discovered during efforts to manipulate iron into useful shapes. Gas weldingoxy acetylene,equipment details,types of flames,applications gas welding process pdf. Instructional dvd introduces the fundamentals of oxy acetylene welding, including closeup welding demonstrations as seen through the welders helmet. With the addition of oxygen a flame temperature in excess of 6000 deg. The chemical action of the oxy acetylene flame can be adjusted by changing the ratio of. Not entirely true, with the proper parts, setup and knowledge, it could matchup or even perform better than acetylene in certain conditions.
It is the only gas mixture hot enough to melt steel. What temperature do oxyacetylene welding torches burn at. Shop a large range of oxygen and acetylene welding torch kit at msc industrial supply. Because this is achieved by oxidation, it is only effective. Open the valve on the acetylene cylinder no more than threefourths of a turn so it can be closed quickly in case of emergency. Oxyacetylene, commonly known as oxyfuel, is one of the oldest welding processes, though in recent years, it has become less popular in industrial applications. Acetylene, when burned alone, can produce a flame temperature of about 4000 deg. The shift coordinator may authorize welding cutting in concentrations between 0. The oxyacetylene torch can be used for various tasks. This complete oxy acetylene welding kit is designed to handle a broad range of cutting, welding, and heating applications. Open the acetylene needle valve on the torch and which is blown or washed out of the kerf by the force allow gas in the hose to escape for 5 to 15 seconds. This is a special welding technique used for butt welding of steel pipes.
California pel for chemical contaminants table ac1 united states. Safe operating procedures sop 15 oxy acetylene cutting. Oxyacetylene welding oxyacetylene oa welding is one of the many types of welding supported by the prl. Cylinder sizing charts trico welding supplies, inc. A mixture of oxygen and acetylene, burns as an intense focussed flame. Xtremepowerus portable welding torch kit with oxygen and acetylene tanks and 316 in. In fact, the oxyacetylene flame burns at 6000 f, and is. While welding, the pipes are rotated constantly so as to weld the seam in the horizontal position only.
It can be used for cutting steel, welding steel, brazing and for heating metal. Fasten oxygen and acetylene cylinders in an upright position. Shutting down the torch with a positiveequal pressure mixer. Jan 25, 2017 oxy acetylene welding is a very common welding process that dates back to 1890s, wherein oxygen and acetylene are used as the two major welding gases. There are three main techniques used in oxyfuel welding. Oxygen and acetylene welding kit harbor freight tools. Oxygen acetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene. The flux may be used to deoxidize and cleanse the weld metal. Chemical reactions and temperature distribution in a neutral oxyacetylene the secondary combustion is also called the protection envelope since co and h2 here consume the o2 entering from surrounding air, thereby protecting. Screw in the oxygen thandle adjusting valve to working pressure for welding, always use tip size for pressure.
The mixer is where you will attach welding tips, cutting attachment, and the rosebud heating torch. A common inside diameter of oxyfuel gas hose is 14 inch. Oxygenacetylene torch accessories msc industrial supply. 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. 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. Acetylene may burn hotter and could preheat metal faster, but does that mean that propane gives off less heat. Oxygen acetylene welding, or oxy acetylene welding, is a process for joining metals that was introduced in 1903 by thomas wilson. Cylinders should not be able to be knocked or pulled over. Oxygen acetylene welding easily understand youtube.
Some of our more popular gas welding and cutting equipment includes. Design, equipment and testing of gas welding installations on seagoing ships a. The flame heats the base metal to its fluid or puddle state. Many gases are flammable, explosive, toxic, or a combination.
This welding tip is an ideal replacement tip for the heavy duty welding kit. In fact, the oxyacetylene flame burns at 6000 f, and is the only gas flame that is hot enough to melt all commercial metals. Pure oxygen, instead of air, is used to increase the. Comes with hoses, welding and cutting torches, goggles, tip cleaners and striker packed in a heavy duty molded storage case. Oxyfuel cutting uses acetylene and oxygen to preheat metal to red hot and then uses pure oxygen to burn away the preheated metal. Oxyacetylene torches can burn at up to 6,330 f, depending on the tip and mixture of gasses used. In the welding industry the vast majority of preheating is done with oxygen propane. Goplus 50ft twin welding torch hose oxy acetylene oxygen cutting 14inch 300psi. A practical manual of oxy acetylene welding and cutting with a treatise on acetylene and oxygen, by p. Fundamentals of gas cutting and welding ced engineering. Acetylene valve should be opened 14 turn and oxygen valve should be opened all the way.
Professional tote oxygen acetylene oxy welding cutting torch kit with tank. Both oxygen and acetylene are combustible, but more important, there are a lot of places you just dont want an open flame. Tables show approximate gas pressures for welding or cutting. Oxyacetylene welding manual by campbell, lorn, 1891publication date c1919 topics welding publisher. Adjust the oxygen regulator screw by turning it clockwise until the recommended pressure is achieved. Msc industrial supply is here to support all your metalworking and maintenance repair needs with over 1 million products in stock and ready to ship today. Oxygen tank 30 tallmeasured to the neck of the bottle.
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. It is extremely versatile, and with enough skill and practice you can use this type of welding for virtually any metal. Giving an overview of the gas or oxy acetylene welding processes. French engineers edmond fouche and charles picard became the first to develop oxygenacetylene welding in 1903. Oxy acetylene welding oxygen acetylene welding tank. Video an introduction to gas welding oxyacetylene oxyacetylene gas welding is commonly used to permanently join mild steel. Lincoln electric portatorch kit with oxygen and acetylene tanks and 316 in. Copper spiral mixer designed for uniform, freeflowing flame. Where a liquid oxygen system is to be used to supply gaseous oxygen for welding or cutting and the system has a storage capacity of more than,000 cubic feet 364 m 3 of oxygen measured at 14. Covers equipment setup, weld beads and joints, torch adjustment and more. An oxy acetylene outfit is portable, less expensive and more versatile than a electric welding. Common compressed gases include acetylene, carbon dioxide, argon, hydrogen, nitrogen, air, propane, and oxygen. Open the acetylene blowpipe handpiece valve very slightly and light with a flint lighter only. Open the acetylene torch valve about onefourth turn.
If the torchregulators and gases are done being used for a while, follow these procedures. The acetylene fuel hose has left hand threads and the oxygen hoses have standard. Welding gas cylinder size chart for high pressure, acetylene, propylene and propane. Oxygen and acetylene use and safety virginia department of. The oxyacetylene process produces a high temperature flame, over 3000 degrees c, by the combustion of pure oxygen and acetylene. Us navy 0704n2943c001 hull technician fireman troy heffner lights up an oxygen acetyl torch prior to a welding job in the hull technician shop. In this video we will discuss about what is oxygen acetylene welding.
The combination of oxygen and acetylene produces a flame temperature over 6000 degrees fahrenheit making it ideal for welding and cutting. Oxy acetylene welding oxygen acetylene welding torch. They include soldering irons, stick welders, tig welders, mig welders, and gas welders as well as the torches, electrodes, filler metals, solder, and other welding supplies that are used with them. Victor regulator, torch hose tanks are emptied before shipping perfect for set up and go. 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. No welding cutting is allowed when methane concentrations meet or exceed 1. Nov 30, 2015 gas welding generally fell out of favor for opposite reasons.
Cylinder sizing can be a little daunting until you get the hang of it and our cylinder sizing charts make short work. 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. Oxy acetylene welding ofw fundamentals pressure settings. However, unlike these, oxy acetylene, or arc welding, is much more widely used since. An excellent video for the beginner wanting to learn the fundamentals of welding. At this point, the gas welding rod copper coated steel is dipped into the puddle.
This welding on the web box will appear throughout the manual. The use of oxygen and acetylene as welding gases dates back to the 1890s. The chemical action of the oxy acetylene flame can be adjusted by changing the ratio of the volume of oxygen to acetylene, using the valves on the torch or. Oxyacetylene welding oaw oaw is a manual process in which the welder must personally control the the torch movement and filler rod application the term oxyfuel gas welding outfit refers to. To be suitable for welding operations, a fuel gas, when burned with oxygen, must have. Gap wirea wire used for correct spacing of butt joints. Gas welding experiment gas welding i objectives giving an. How to set up an oxy acetylene torch with pictures wikihow. Oxy acetylene welding leaving certificate engineering notes. Working pressure limits for welding hose is 200 psig maximum. The covered electrodes of mild steel come in 4 sizes and are of tubular construction. Learn about the safety of central welding supplys acetylene cylinders.