With a 2hose cutting torch, preheat pressure is set by the cutting oxygen. What is the difference between gas welding and gas cutting. How to properly use an oxygen acetylene torch for cutting. Coxreels 1275w series manual twinline oxyacetylene hose reel with front crank includes 38in. Oxygen and acetylene use and safety virginia department of. Spatter can stick on or in these holes but can be removed with a tip cleaner. An oxy acetylene torch is an affordable and versatile tool used by many people to heat, weld, solder, and cut metal. Oxyacetylene cutting safety occupational safety and.
As i recall, popping loud pop that puts out the torch happens if you dip the cone. Fundamentals of gas cutting and welding cedengineering. Torches with flashback arrestors require up to 25% more pressure as tip size increases 15 psi maximum acetylene. Oxyacetylene gas cutting techniques manual type of course a credit bearing skills programme offered on a fulltime 5 days. Setup and shutdown procedure for oxyfuel cutting torch. The resulting liquid metal slag is blown out by the cutting stream. To secure a neutral flame, always start with an excess of acetylene, then increase the flow of oxygen or decrease the flow of acetylene until the acetylene feather disappears from the center cone. Triangular stainless steel gas tubes for maximum strength. Because this is achieved by oxidation, it is only effective. Oxyacetylene welding and cutting, including the operation. Aug 24, 2010 how to form, pour, and stamp a concrete patio slab duration. How to form, pour, and stamp a concrete patio slab duration. The oxyacetylene process produces a high temperature flame, over 3000 degrees c, by the combustion of pure oxygen and acetylene.
How to cut metal with an oxy acetylene cutting torch. The mixer is where you will attach welding tips, cutting attachment, and the rosebud heating torch. Mike day everything about concrete 1,419,563 views. Oxylpgacetylene cutting equipment is set up in accordance with manufacturer guidelines. Pdf version 30 kb fires and explosions due to the misuse of oxygen. I used to be pretty good at it back in high school welding class, 20 years ago. Cutting with the oxyfuel process is just the opposite from of welding. Continue to add oxygen until neutral flame is established. Tip size numbers vary among manufacturers, so orifice sizes are shown in number drill. The covered electrodes of mild steel come in 4 sizes and are of tubular construction. Oxygen and acetylene welding kit harbor freight tools. It uses extreme heat to function, and setting it up properly is one of the most. Acetylene storage free acetylene is never stored under high pressure. Advanced welding supply company industrial gas information acetylene pressure temperature oxygen pressure 355.
To be suitable for welding operations, a fuel gas, when burned with oxygen, must have the. Acetylene pressure temperature oxygen pressure 355. Check to make sure oxygen is supplied to the cutting attachment and to make sure the oxygen is still at the acceptable level. Acetylene gas virtually all the acetylene distributed for welding and cutting use is created by allowing calcium carbide a man made product to react with water. Oxygenacetylene cutting definition of oxygenacetylene.
Cylinders are packed with a porous material and saturated with acetone. The oxyfuel process is the most widely applied industrial thermal cutting process because it can cut thicknesses from 0. When the iron exceeds the combustible temperature, it starts to combust by the cutting oxygen, and reaction point is. This complete oxy acetylene welding kit is designed to handle a broad range of cutting, welding, and heating applications. In the weld shop, we use machines that will cut pipe form 2 inches to 14 inches in diameter. The electric arc takes the place of the heating flame of the oxyacetylene cutter. Oxy acetylene cutting is a gas flame cutting process to separate metal sheets. To prevent such a situation a flashback arrestor is usually employed. Acetylene oxygen cutting torch tank regulation questions. 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 particular kit is for use with oxygen and acetylene gases.
Purpose of the course the course will address all persons in the. Oxy acetylene cutting is used in many metal fabrication shops. If this is not done there will be starvation of oxygen at the nozzle when the cutting oxygen lever is depressed. After checking, close the cutting attachment again. No welding cutting is allowed when methane concentrations meet or exceed 1. A common inside diameter of oxyfuel gas hose is 14 inch. This colorless gas is widely used as a fuel and a chemical. Oxyfuel cutting uses acetylene and oxygen to preheat metal to red hot and then uses pure oxygen to burn away the preheated metal. Set your acetylene to between 57 psi pounds per square inch. Tip size is selected as appropriate for the materials to be cut. Acetylene everything else bulacan city, philippines. Flashback is the condition of the flame propagating down the hoses of an oxyfuel welding and cutting system. For best results use appropriate capacity torches and 38 hose when using. An excess of acetylene is easy to spot, but an excess of oxygen is difficult to spot except that it will cause molten metal to spark excessively.
Flashback arrestors are also supplied in keeping with standard site requirements. The shift coordinator may authorize weldingcutting in concentrations between 0. This video will demonstrate the safe use of an oxygen acetylene torch to cut metal. Feb 15, 2017 this video will demonstrate the safe use of an oxygen acetylene torch to cut metal. The tool you use for oxy acetylene cutting is called a.
Fusion weldinga welding process that joins metals by heating them to be a. Caution to prevent the blowing of molten slag back into the operators face, take the following precautions. How to use a oxygen acetylene cutting torch snapguide. Download it once and read it on your kindle device, pc, phones or tablets. For best results use appropriate capacity torches and 38 hose when using tip size 6 or larger. It is the only gas mixture hot enough to melt steel. It is produced industrially by distilling air below its freezing point. Usually, we use this flame for cutting materials from carbon steel. Occupational safety division, central welding supply. Cutting method that melts and remove iron by the oxidation reaction heat of the iron itself. Oxyfuel cutting is a thermal cutting process that uses oxygen and fuel gas such as acetylene, propane, mapp, propylene and natural gas to cut through materials. You will get about 3 to 1 on the oxygen to acetylene. Adjust the regulator delivery pressures according to the size and type of tip being used. Oxygen acetylene cutting definition is gas cutting with oxygen and acetylene.
Product title firepower vct67002440 250 series acetylene cutting. The edges of the metal to be joined are first prepared first, then heated to. This means if acetylene reaches 30 psi in a free state, it can explode by itself without a spark or flame being present. Comes with hoses, welding and cutting torches, goggles, tip cleaners and striker packed in a heavy duty molded storage case.
If not stopped, the fire can travel through and damage the torch, hoses and explode the cylinder. Makati, manila, ortigas, san juan, mandaluyong, quezon city, taguig call us for inquiries other products. Comes with hoses, welding and cutting torches, goggles, tip cleaners and striker. The shift coordinator may authorize welding cutting in concentrations between 0.
With a two hose cutting torch, preheat pressure is set by the cutting oxygen. Normal air contains 21% of oxygen and the way in which common materials burn in it is well known. For use in welding and cutting, the working pressures must be controlled by a regulator, since above 15 psi 100 kpa, if subjected to a shockwave caused, for example, by a flashback, acetylene decomposes explosively into hydrogen and carbon. The torch should have identifying marks on the body or the handle showing. The separation is done by heating the surface of the material over melting temperature and burning it through the supply of additional oxygen. Porous filler810%, acetone42%, acetylene gas36%, reserve volume70o f 1012%. Attach the oxygen hose to the oxygen regulator and to the torch. Purpose of the course the course will address all persons in the manufacturing industry to achieve advanced skills in gas cutting required by using the oxyacetylene process. If there is too much acetylene, flame breaks away from the tip. 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. Oxyacetylene welding and cutting, including the operation and care of acetylene generating plants and the oxygen process for removal of carbon kindle edition by swingle, calvin franklin. Always purge out the cutting oxygen passages by opening the cutting. Cutting oxygen preheat flame slag cutting tip reaction point cutting direction 1. Turn the acetylene knob on the cutting torch about a quarter of a turn and light the acetylene.
Oxy acetylene welding and cutting, including the operation and care of acetylene generating plants and the oxygen process for removal of carbon kindle edition by swingle, calvin franklin. How to set up an oxy acetylene torch with pictures wikihow. Turn your oxygen valve on all the way, then turn your acetylene valve a 1615 of a turn. Oxygen acetylene cutting torch harbor freight tools. 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. Move the torch in a straight line to keep a straight cut, and move the torch at a uniform speed at which the flame is cutting through the metal. Bws propane or natural gasoxygen cutting tips airco concoa acetylene oxygen part no. Fundamentals of gas cutting and welding ced engineering. Tables show approximate gas pressures for welding or cutting. In this process, oxygen gas and electrodes are used to cut roughly mild steel, lowalloy steel, stainless steel, copper, bronze, brass, monel, metal etc.
Welding and cutting torches van kampen lastechniek. Safety with oxyacetylene welding or cutting irish oxygen. Upon successful completion of the course, the learner will be proficient in the following key areas. Oxyfuel gas welding means joining of two metals together by the heat of the flame produced by the gas. Industrial quality torch for reliable oxyacetylene cutting operations. Acetone can absorb many times its volume in acetylene without changing the acetylene. The nice thing about the calcium carbide method of producing acetylene is that it can be done on almost any scale desired. This complete oxyacetylene welding kit is designed to handle a broad range of cutting, welding, and heating applications. Victor series 3 acetylene cutting tips victor series 3 type 101 general purpose hand and machine torch cutting data compiled using mild steel as test material. If you do any heating with a rose bud, you will go through them quickly. Manual cutting blowpipes without injector, of the nozzle mixing type, can also be recommended. In concentrations higher than 21%, however, the situation is different. Setup and shutdown procedure for oxy fuel cutting torch.