Use chapter 3 in the metal fabrication text by larry jeffus to complete this worksheet. Welcome to a better way of cutting, welding, brazing and heating with boc gas equipment. Careless use of oxyfuel torches has caused many fires. The effects of cutting pressures of the oxyfuel gases are also elucidated. A mapp gas leak is easy to identify because of its particularly terrible. This chart provides the approximate cost for cutting metal plate with oxyfuel torches on a cnc cutting machine. Chapter 4 gas cutting the common methods used in cutting metal are oxygas flame cutting, air carbonarc cutting, and plasmaarc cutting. Approved goggles or face shields must be worn when welding or cutting.
Recommended practices for safe oxyfuel gas cutting torch operation 1. Open the fuel gas control valve on the blowpipe and adjust the regulator to give the correct working pressure see chart on page, this ensures that any air or oxygen is purged from the hose. Deciding which to use depends on factors such as material type and thickness, available power resources, and the cost and location of the job. Oxyfuel gas cutting how is oxyfuel gas cutting abbreviated. Popularly known as contractors cutting outfits, this is a basic set of cutting gear designed for robust. Cutting of metals by means of flame has many advantages over other methods, specially when the metal is of irregular shape. Air products range of fuel gases for welding and cutting. Choose from 179 different sets of oxyfuel gas cutting flashcards on quizlet.
By modifying traditional gas turbines to operate with a steamco2 drive gas rather than an airbased drive gas ces is creating a paradigm shift in the energy industry. Mar 15, 2016 both oxyfuel and plasma cutting systems have their advantages and disadvantages. I kwara state polytechnic, ilorin, metallurgical engineering department, pmb 75. Choosing between oxyfuel and plasma cutting systems. 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. Follow the precautions in this safety section and those throughout this manual for your personal safety and the safety of people near the equipment. Never use matches or a cigarette lighter to ignite the oxyacetylene torch. Deciding which to use depends on factors such as material type and thickness, available power. Ag fuel 20 acetylene 182 alternate fuel 23 chemtane2 8 hpg. Gas cutting definition of gas cutting by merriamwebster. Fully integrated oxyfuel cutting system with cutting torch. The required temperature is provided by the combustion of a fuel gas and. Scope this standard describes the equipment, procedures and safe practices for the oxyfuel cutting of steel.
Fundamentals of gas cutting and welding ced engineering. Oxyfuel cutting can be used to separate a wide range of steel types but the composition of the steel may require some other process, such as preheating prior to cutting. Air force, rice holds degrees and certificates from community college of the air force, belford. Scope and application oxyfuel gas welding and cutting 12511014 subdivision q 4370020000 scope and application these rules apply to safe practices for users of oxyfuel gas for welding, cutting, soldering, brazing, thermal spraying, related materials and equipment. By continuing to use our website, you agree to our use of such cookies. Premium quality brandnew propanenatural gas cutting tip 6290nff series 6290nff1 size 1 for harris torch heavy preheat cutting tip. Adapting gas turbines to zero emission oxyfuel power plants. In recent times, many shops are now considering cnc plasma cutting in place of oxyfuel cutting in this material thickness range.
China gas flame oxyfuel cutting machine with dual torch. Tips cutting welding gas equipment gas equipment airgas. The oxyfuel process is the most widely applied industrial thermal cutting process because it can cut thicknesses from 0. Handling oxyfuel gas welding and cutting 5142012 7 4370033350 handling of oxygen and fuel gas cylinders a when handling or moving cylinders you must. 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. Light the gas by means of a suitable sparklighter making sure that the sparklighter is held at right angles. Oxyfuel cutting is a chemical reaction between pure oxygen and steel to form iron oxide. Gas cutting article about gas cutting by the free dictionary. This is the most frequently employed thermal cutting process used for low carbon and low alloy steel plates and often referred to as flame cutting or gas cutting. The chart ranges from 14 material thickness to oxy cutting up to 2 steel. The required temperature is provided by the combustion of a fuel gas and oxygen minimum 99. 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. This checklist must be used with the welding, cutting, and brazinggeneral requirements checklist.
Mwt highpressure oxyfuel combustor gas generator, has been adapted. Oxyfuel welding and cutting equipment, setup, and operation directions. Oxyfuel welding, heating and cutting concoa gas pressure. 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 5700.
Success factors in oxyfuel cutting include the fuel gas chosen for preheating acetylene, propane or natural gas. A variety of different fuels may be utilized, although the most common is acetylene. For a typical oxygas cutting outfit, also referred to as a cutting rig figure 41, you need. May 14, 2012 handling oxyfuel gas welding and cutting 5142012 7 4370033350 handling of oxygen and fuel gas cylinders a when handling or moving cylinders you must. Natural gas is used mainly for heating purposes, but can also be used for e. There are several fuel gas and nozzle design options that can significantly enhance performance in terms of cut quality and cutting speed.
Popularly known as contractors cutting outfits, this is a basic set of cutting gear designed for robust site use where harsh operating conditions are prevalent. Little to no slag on bottom edge easily removed by scraping elements of oxyfuel cutting. Oxy fuel cutting welding gas, welding equipment and welding. This rule does not apply to acetylene manufacturers, cylinder fill plants. C and a jet of oxygen is used to melt the metal a chemical reaction between pure oxygen and hot metal. Scope and application oxyfuel gas welding and cutting 125. Safety in gas welding, cutting and similar processes. 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. In the present work, the mechanism of oxidation of steel and interaction effects of carbon on the kinetics of oxyfuel gas cutting process is discussed. Despite upcoming processes like laser cutting and plasma cutting, oxy fuel cutting is still one of the most used cutting processes in the steel industry. Oxy fuel cutting ofc processes sever metal by utilizing the chemical reaction of oxygen with metal at elevated temperatures.
Gas cutting definition is the cutting of a preheated metal by a jet of oxygen. Gce cwt provides a full range of gas pressure regulators, arc welding. Airgas offers quality cutting tips from radnor, victor equipment and other leading manufacturers. Learn oxyfuel gas cutting with free interactive flashcards. Learn vocabulary, terms, and more with flashcards, games, and other study tools. A number 4 shade lens is minimum for oxyfuel gas welding and cutting. It applies to operations involving oxygenfuel gas welding and cutting. A move cylinders using a suitable hand truck, cart or cylinder pallet. Safety in gas welding, cutting and similar processes hse. Top strap cutting it will take effect much later than. The oxyacetylene and other oxyfuel gas mixtures welding torch remains a mainstay heat source for manual brazing and braze welding, as well as metal forming, preparation, and localized heat treating. Natural gas methane natural gas consists primarily of methane. We use cookies to improve your browsing experience and help us improve our websites. 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.
Oxyacetylene cutting safety in agriculture osha standard 1910. Safety training for oxyfuel proactive gas safety training. Using oxyfuel gas cutting equipment sempeo114 using oxyfuel gas cutting equipment 6 additional information. The ideal fuel gas will depend on the thickness of the. Metal cutting is a common step involved with many weldingrelated jobs, whether the application is in the fabrication. Oxygen and a fuel gas are used to produce a high temperature flame for melting the steel. Fundamentals of gas cutting and welding cedengineering.
Both oxyfuel and plasma cutting systems have their advantages and disadvantages. Wear flame resistant clothing when gas welding or cutting. For an ideal gas, the fugacity is numerically equal to the pressure at all pressures. Sempeo114 sqa unit code h02b 04 using oxyfuel gas cutting equipment sempeo114 using oxyfuel gas cutting equipment 3 performance criteria you must be able to. Oxyfuel gas cutting and welding operation of oxyfuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot metal, meatl fumes and combustion products. Taunton goods loop bridge demolition cutting away the last crossgirder 3. Other gases utilized include natural gas, propane, hydrogen, propylene, liquified petroleum gas lpg, and combinations of these gases. Flame ignition, height sensing and lifterall in one package. Prepare for the oxyfuel gas cutting process, to include carrying out.
Oxyfuel cutting can be used to cut thicknesses from 28. Recommended practices for safe oxyfuel gas cutting torch. Scope and application oxyfuel gas welding and cutting 12. When gouging, the steel is locally heated to a temperature above the ignition temperature typically 900deg. In modern steelage the steelmakers cut iron and steel by oxyacetylene, oxyhydrogen, oxy propane, oxynatural gas cutting blowpipes easily, speedily, and cleanly. General preheat cutting tip with propane and natural gas. Steel plate gas cutter, gas cutting machine, steel plate cutting machine manufacturer supplier in china, offering gas flame oxyfuel cutting machine with dual torch for steel sheet, 20l 380v mig welding. Oxyfuel welding, heating and cutting process manual installation and operation instructions before installing or operating, read and comply with these instructions controls corporation of america 1501 harpers road virginia beach, va 23454 to order call 18002250473 or 7574228330 fax 7574223125 april 2001 supersedes. Oxyacetylene cutting safety occupational safety and. Apparatus includes regulators, hoses, connections fittings.
Recommended attachments 625e, 625ae, 880e, 142e, 424e, etc. Gas cutting equipment free download as powerpoint presentation. The cutting action is supported by the pure oxygen stream. The regulations cited apply only to private employers and their employees, unless adopted by a state agency and applied to other groups such as public employees. Oxy fuel cutting is a relatively lowcost cutting process which is normally used for cutting lowalloy steels up to a thickness of 300 mm 12. You get one 1 cutting tip for harris torch at this price. Oxyfuel gas equipment has many uses welding, cutting, heating, straightening.
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