Oxyfuel welding, commonly referred to as oxy welding or gas welding is a. Nonreturn valves fitted to the hoses will detect and stop reverse gas flow preventing an inflammable oxygen and acetylene mixture from forming in the hose. Acetylene is the only fuel gas suitable for gas welding because of its favourable flame characteristics of both high temperature and high propagation rates. Giving an overview of the gas or oxy acetylene welding processes. Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. In oxy acetylene welding, oxygen and acetylene gas are combined in a torch handle to produce a flame that burns at over 6000 degrees fahrenheit. Oxyacetylene welding acetylene gas plant, acetylene plant. In this welding the welder should wear all protective clothing and helmet. Gas cylinder is filled either by oxy acetylene gas, hydrogen gas, natural gas or other flammable gas. 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.
Jan 14, 2017 in this video we will discuss about what is oxygen acetylene welding. Oxyacetylene welding o 2, c 2h oxyacetylene welding is a gas welding process. Oxyacetylene is the typical combination used in gas welding and is generally chosen for general cutting and welding work including work to repair rips and tears in metal. An introduction to gas welding oxyacetylene youtube. Gap wirea wire used for correct spacing of butt joints. With the right gas welding equipment you can gas weld, braze, silver solder, heat and. Oxygenacetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene.
Gas welding oxyacetylene welding in gas welding, a gas flame is used to melt the edges of metals to be joined. The chemical reaction between acetylene and oxygen is exothermic in nature. Mostly oxy acetylene gas is used for all general purpose of welding. Oxyacetylene gas welding technique knowledge zone, the. Oxyacetylene principle of operation a fusion welding process, heat is concentrated on the joint edges until the metal melts and starts to flow. Oxy acetylene welding o 2, c 2h oxyacetylene welding is a gas welding process. For complete combustion of one unit volume of acetylene, 2. Pass a written test on safety and operation procedures on the oxy acetylene unit with a minimum of 100 accuracy. Gas welding experiment gas welding i objectives giving an. Competencies given a functional oxyfuel gas unit, instruction and demonstration of use, each student will be able to. Aug 02, 2018 oxy acetylene welding it is the common method of gas welding.
Fusion welding a welding process that joins metals by heating them to be a melting point and allowing them to fuse or flow together. Normally these cylinders have maroon line to indicate it. However, it is still widely used for a variety of applications. Nov 07, 2018 gas welding oxy acetylene,equipment details,types of flames,applications gas welding process pdf. Each gas is contained in its own cylinder and combined through the use of separate hoses leading from regulators attached to the top of the cylinders. Unit 9 oxyacetylene welding plant and safety duration 6. Typical applications of the process include fabrication of ventilation and airconditioning ducts and repair of vehicles. This flame in turn melts the metal faces of the two pieces to be welded, causing the liquified metal to flow between and join them. Fusion weldinga welding process that joins metals by heating them to be a. In fact, the oxy acetylene flame burns at 6000 f, and is the only gas flame that is hot enough to melt all commercial metals. Llc an itw welding company 1635 west spencer street p.
Oxy acetylene welding ofw fundamentals pressure settings. The pressure amount of gas in an oxygen cylinder is 1980 lbin. Oxy acetylene is the typical combination used in gas welding and is generally chosen for general cutting and welding work including work to repair rips and tears in metal. In oxyacetylene welding, oxygen and acetylene gas are combined in a torch handle to produce a flame that burns at over 6000 degrees fahrenheit. It can be used for cutting steel, welding steel, brazing and for heating metal. The oxy acetylene welding process uses a combination of oxygen and acetylene gas in the approved ratio to provide a high temperature flame. Oxygen acetylene welding easily understand youtube. Do not extinguish, unless leak can be stopped safely. Apr 16, 2017 gas cylinder is filled either by oxy acetylene gas, hydrogen gas, natural gas or other flammable gas. By the end of this unit each apprentice will be able to. Oxyacetylene welding acetylene gas plant, acetylene. Acetylene cylinders are equipped with fusible metal safety plugs and not.
Other fuel gases, such as propane, propylene or natural gas, produce insufficient heat input for welding but are used for cutting, torch brazing and soldering. Oxyacetylene welding it is the common method of gas welding. 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. Box 1079 appleton, wi 549121079 usa equipment sales us and canada phone. Thelittletorch kit top precision and control for your smallest oxyfuel jobs. One of the most commonly used applications of acetylene gas is oxy acetylene welding, oxy welding, or gas welding. The chemical action of the oxyacetylene flame can be adjusted. Gas welding experiment gas welding i objectives giving. When the flame comes in contact with steel, it melts the surface forming a molten pool, allowing welding to take place. Gas welding oxy acetylene welding in gas welding, a gas flame is used to melt the edges of metals to be joined. The fuel gas selection is depends on the welding material. Gas welding and cutting oxy fuel welding, commonly referred to as oxy welding or gas welding is a process of joining metals by application of heat created by gas flame. Always close the cylinder valve and replace protective cover before moving the.
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. Oxyacetylene and oxymapp methylacetylenepropadiene welding are two types of gaswelding processes. Weve worked hard to produce gas welding kits to suit as many applications, and pockets, as possible. Oxyacetylene gas welding process is widely used commercially for welding of ferrous and nonferrous metals particularly for thin sections up to 6 mm thick. Gas welding is probably the oldest of the welding processes and gas welding equipment is arguably the most versatile. Describe the hazards and safety features of oxyacetylene welding plant. Open the valve on the acetylene cylinder no more than threefourths of a turn so it can be closed quickly in case of emergency. For most welding applications, theres an arc welding. The oxyacetylene torch can be used for various tasks.
Proper eye protection must be wornoperate only with instructors permission and after proper instructions have been received. This temperature provides enough heat to melt most metal. Oxygen and acetylene are the gases used to produce the welding flame. Be sure cylinders are fastened with a chain as a protection against falling or rolling. French engineers edmond fouche and charles picard became the first to develop oxygenacetylene welding in 1903. This welding on the web box will appear throughout the manual. In this process coalescence or bond is produced by heating with the gas flame obtained from the combustion of. A complete, practical manual for gas welding and cutting practice ted b. Oxy acetylene gas welding process is widely used commercially for welding of ferrous and nonferrous metals particularly for thin sections up to 6 mm thick. Oxyacetylene welding is simple in concept two pieces of metal are brought. Oxyacetylene and oxy mapp methylacetylenepropadiene welding are two types of gas welding processes. 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. 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.
A filler rod is used to deposit additional metal as necessary to merge the two base materials. Competencies given a functional oxy fuel gas unit, instruction and demonstration of use, each student will be able to. Welding welding is a materials joining process which produces coalescence of materials by heating them to suitable temperatures with or without the application of pressure or by the application of pressure alone, and with or without the use of filler material. The oxy acetylene welding process combines oxygen and acetylene gas to provide a high temperature flame for welding.
Nov 17, 2016 an introduction to gas welding oxyacetylene this is a video by the world association of technology teachers. Both require a gasfueled torch to raise the temperature of two similar pieces of metal to. Oxygen acetylene 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. Seminar on gas welding seminar report pdf download. In this video we will discuss about what is oxygen acetylene welding. A flux is used during welting to prevent oxidations and to remove impurities.
The process is also useful for a large amount of repair work. The spark lighter is used to ignite the oxyacetylene mixture at the tip of cutting torch. 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. Operation oxygen and acetylene gas are burned at the tip of the nozzle on the welding torch. One of the most commonly used applications of acetylene gas is oxyacetylene welding, oxy welding, or gas welding. The oxyacetylene welding process combines oxygen and acetylene gas to provide a high temperature flame for welding. Ppt oxyacetylene welding powerpoint presentation free to. The fuel gas commonly acetylene, when mixed with proper proportion of oxygen in a mixing chamber of welding torch, produces a very hot flame of about 57005800f. A mixture of oxygen and acetylene, burns as an intense focussed flame, at approximately 3,500 degrees centigrade. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from.
A welding torch is used to mix the gases in the proper proportions and to direct the flame against the parts to be welded. Describe the components and their function of oxyacetylene welding plant. Review the notes on lighting the torch and on safety. Oxyfuel welding, heating and cutting concoa gas pressure. As a welding torch, the basic operation of an oxyacetylene unit is blending two gases, oxygen and. Oxy acetylene welding leaving certificate engineering notes. The position of the welding rod and welding torch is almost same as the welding in horizontal position. Fusion weldinga welding process that joins metals by heating them to be a melting point and allowing them to fuse or flow together. Oxy acetylene gas welding kits the welders warehouse. 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. The oxyacetylene welding process uses a combination of oxygen and. This flame in turn melts the metal faces of the two pieces. In addition to the purposes of welding connecting, gas welding can also be used as preheating, brazing, cutting, and hard facing. In fact, the oxyacetylene flame burns at 6000 f, and is the only gas flame that is hot enough to melt all commercial metals.
Oxy acetylene principle of operation a fusion welding process, heat is concentrated on the joint edges until the metal melts and starts to flow. Oxy fuel equipment is versatile, lending itself to welding, brazing, braze welding, silver soldering, metal heating for bending and forming and oxy fuel cutting. When mixed together in correct proportions within a handheld torch or blowpipe, a hot. Ppt oxyacetylene welding powerpoint presentation free. Osha safety and health standards, 29 cfr 1910, available from u. Giving an overview of the gas or oxyacetylene welding processes. 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. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. Oxyacetylene gas welding is commonly used to permanently join mild steel. Fundamentals of gas cutting and welding ced engineering. Safety for oxyacetylene welding thompson rivers university. Oxidation of the joint faces is prevented by an envelope made. Both require a gas fueled torch to raise the temperature of two similar pieces of metal to the fusion point that allows them to flow together.
The other equipments serves the same function as in case of oxyacetylene gas welding. The chemical action of the oxy acetylene flame can be adjusted. Gas welding is also named as oxyfuel gas welding ofw. Fundamentals of gas cutting and welding cedengineering. In this process coalescence or bond is produced by heating with the gas flame obtained from the combustion of acetylene with oxygen. An introduction to gas welding oxyacetylene this is a video by the world association of technology teachers. 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.
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