Torch brazing 3 or 4 light cutting, up to 1 inch 3 or 4 medium cutting. Process for cutting metal using an apparatus that produces a very hot flame through the combustion of gases. Before cutting, the cutting torch has to preheat the steel to ignition temperature at the starting point. The equipments used for gascutting is similar to that of gaswelding except that the welding torch is replaced by a special designed cutting torch.
In operation, one part of oxygen is supplied through the torch and the. Pick up highquality torch cutting attachments at grainger. There are two orings on the cone end providing secure connection and continuous separation of oxygen and fuel gas into the cutting. There are valves for each gas witch control the flow of gases inside the torch. Each welding tip cleaner includes wire files 49 to 77 at different lengths 2 or 4 and an extra flat file. The hoses from your torch should attach to the nozzles on the oxygen and acetylene tanks. Safe operating procedures sop 15 oxy acetylene cutting. Oxyfuel gas cutting torch safety reminders fuel gas. This is why we use pressure regulator so that to reduce the pressure to be used at the best pressure at the cutting torch. Good tips, and info to help you have a better understanding of what this thing can do.
Always purge gas from the system before lighting torch. In oxyfuel cutting, the metal is first preheated with the oxy fuel flame to the ignition temperature. In oxyfuel gas welding or cutting where the torch produces a high yellow light, it is desirable to use a filter lens that absorbs the. How to use, and get better at using a acetylene torch. Notice data compiled using mild steel as test material. Metal thickness tip size cutting oxygen psig preheat oxygen psig preheat fuel gas psig speed i. Performance matched cutting attachments are available for each torch.
How to use a oxygen acetylene cutting torch snapguide. The oxyacetylene and other oxyfuel gas mixtures welding torch remains a mainstay heat source for manual brazing and braze welding, as well as metal. Oxygen and acetylene use and safety virginia department of. It is a pressure torch ii that is designed on the basis of the stringent demands stipulated by standard en iso. Figure 56 typical equalpressure generalpurpose welding torch. Before welding, verify torch head is firmly attached to the torch body. Keep torch flame or sparks away from cylinder, regulator, and gas hose. Purge gas in a wellventilated area and away from flame or sparks. The oxygas cutting torch has many uses in steelwork. Welding torches are most important part of gas welding. Fundamentals of gas cutting and welding ced engineering. Safety in gas welding, cutting and similar processes. Cutting nozzle 2 seats torch mixing applied thickness mm nozzle series. Gas cutting and welding torch installation the harris products.
If either one of these factors are mismatched the quality of cut will suffer. Cutting attachment is connected to the torch handle to perform cutting operation. Flammable gases and vapors can explode if ignited by using a cutting torch on a container or pipeline. Attach oxygen hose to torch valve marked ox righthand thread. Chalk line guides may be drawn on the cutting surfaces to mark the cut. Cutting torches and accessories agnm gouging nozzles 94 mm long. All pressures are measured at the regulator using 25 x 14 hose through tip size 5 and 25 x 38 hose for tip size 6 and larger. Fundamentals of gas cutting and welding cedengineering. Find attachments that feature stainless steel tubes, flipup levels and easeon cutting oxygen valves. In case of a beveled cut an angled cut for weld preparation the cutting torch. Wrapping restricts water flow which may cause power cable to overheat and torch hose to burst. When the required temperature is reached, the cutting oxygen is turned on, and the stream of pure oxygen is directed against the heated metal. It has a scissorstype arrangement which gives an adjustment range from 112 to 12 in.
Oxyfuel cutting is a time consuming process, especially cutting thick walled materials. The pressure regulators serve to reduce and control the gas pressure. Never crack fuelgas cylinder valve near other welding work or near sparks, flame, or other possible sources of ignition. The shortest distance through the material is a cut perpendicular to the wall. Fuel gas cutting tools are some of the most common tools used on our job sites, however at times, they are also. 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. Brass forged bodies and heads help provide longlasting durability. This checklist helps employers and employees in general industry and construction comply with the occupational safety and health administration oshas standards for welding, cutting.
The coupling nut and the cone end inside the coupling nut match the torch head of the torch handle. Chart for lens tint for protection against radiant energy. If not stopped, the fire can travel through and damage the torch, hoses and explode the cylinder. 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.
Some models feature thickwall, highcapacity 3tube construction to help deliver higher gas. Handles and attachments 6ictor0rofessionals medium duty handles 100 fc victor torch handles cover the full range of welding, cutting and heating needs. Mediumduty oxyacetylene cutting and welding outfit 770 502. Both the fuel gas and oxygen at suitable pressure fed through hoses to the welding torch. Typically, oxygen tanks and hoses are green, and acetylene hoses are red. Cutting torch attachments heating and welding torch. Chapter 6 soldering, brazing, braze welding, wearfacing. Model 623 hand cutting torch 5 model 632 hand cutting torch 2 model 75 hand cutting torch 2 model 80 machine cutting torch 1 model 982 machine cutting torch 2 model 982t machine cutting torch 1 model 985 machine cutting torch. The equipments used for gas cutting is similar to that of gas welding except that the welding torch is replaced by a special designed cutting torch. This adaptor fits directly on all cutting torches using 1500 series nozzles. A common inside diameter of oxyfuel gas hose is 14 inch. Do not wrap watercooled torch hoses and power cables together with tape or plastic wire ties. For greater accuracy, use straight edges, shaped guide bars, or templates to steady the hand and guide the cut. Also, it is dangerous to use cutting torches in higher pressure than needed.
Whether youre a diy hobbyist working out of your garage or a professional working on a transcontinental pipeline, welders supply company has the. This book will highlight the welding and cutting processes. Be careful not to let welding hoses come into contact with torch flame sparks from cutting or hot. Use the following procedure for filing and tinning a copper figure 63. This video demonstrates the safe and proper installation of gas cutting and welding torches onto cylinders.
Torchs with flashback arrestors require up to 25% more pressure as tip size increases. The fuel gas commonly acetylene, when mixed with proper proportion of oxygen in a mixing chamber of welding torch. Either oxygas flame or air carbonarc equipment will be the most common type of equipment available, and the former is probably the method you will use most often. Ensure both gas bottles are off and the welder secured with bottles stored upright at completion of work.
Flame cutting requires a careful balance of cutting oxygen flow, preheat flame and cutting speed. Always be aware of others around you when using a torch. Open the torch fuel valve approximately onehalf turn and ignite the gas. Operation of oxyfuel torches involves oxygen and flammable gases under pressure, open flames, flying. Tip cleaner is made of stainless steel, perfect for cleaning gas orifices and removing. Purge oxygen and fuel gas individually to ensure there is no mix gases in handle before fitting attachments and lighting torch. 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. The mt 585 ox is an oxymappro brazingcuttingwelding torch kit features a torch with two brass fuel valves one for mappro and a regulated valve for oxygen. Pressure is measured at the torch inlet on mth series tips. We sell torch kits for the home hobbyist and professional.
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