Unit ii oxygas and other cutting welding processes. Welding and cutting on closed containers, such as tanks, drums, or pipes, can cause them to blow up. Gas equipment cutting torches cutting kits gas cylinders. Pdf oxyfuel welding and cutting sewalem gezie academia. If it is necessary to purchase new equipment, manual oxygas or airarc equipment is the cheapest, approximately. An introduction to cnc plasma cutting section 1 background information. Oxygas and other cuttingwelding processes unit objective. Scribd is the worlds largest social reading and publishing site.
Generally, hc gases are used as fuel gas in oxyfuel gas cutting. Y are approved safety glasses required to be worn at all times in areas where there is a risk of eye injuries such as punctures, abrasions, contusions, or burns3 y are protective gloves, aprons, shields, or other means approved against cuts, corrosive liquids, and chemicals. 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. Hand cutting propanenatural gas 6290nff oxygen thicknessfuel gas cutting thickness tip pressure fuel gas equal orifice drill inches size psig low pressure pressure sizes to provide required gas flow, use 38 i.
All of these programs generate and use different types of files that are specific to the program. Gas metal arc welding and flux cored arc welding jun, 2010 what purpose o2 cylinder attaching while gas cutting or welding time archive safety slogans very useful for everyone pdf download archive sample safety manual hindi english for chemical industry archive. A firewall partition 5 feet high with a halfhour rating can be substituted. The concentrated energy of the beam heats the metal above its melting point, but that alone does not produce a clean cut. Gas cutting free download as powerpoint presentation. For homeowners seeking a reliable mower that is budgetfriendly and has features that make mowing easier. Gas cutting article about gas cutting by the free dictionary.
Chart for lens tint for protection against radiant energy. Information and directions for the student handout as it is currently written are listed at the end of this instructor guide. Environmental protection agency epa finalized its clean power plan under section 111d of the clean air act. Xtx ohv engine with no oil change required just check the oil level before each use. The energy input into the gas has to be ongoing otherwise the gas will eventually. Find here online price details of companies selling gas cutting sets. Most revolvers will show at least a small amount of gas cutting on the top strap, just above the entrance to the barrel, just in front of the face of the cylinder.
Epas emissions plan saves money for onsumers in october 2015, the u. The concentration of the solvent vapor in the gas is lower than the concentration limits to change the classification of the acetylene. Oxyacetylene cutting safety occupational safety and. Too low pressures may cause instability now check your equipment for leaks using a solution of. Assist gas, either nitrogen or oxygen, is used to exclude regular atmospheric air and blows away the molten material. The safe use of compressed gases in welding, flame cutting and allied processes hsg9 hse books 1997 isbn 0 7176 0680 5 hot work on small tanks and drums leaflet indg314 hse books 2000 single copy free or priced packs of 10 isbn 0 7176 1766 1 for environmental guidelines see sheet wl0 useful links. Part number operating pressure gas consumption oxygen fuel gas cutting oxygen heating oxygen fuel gas mm in. Pure oxygen, instead of air, is used to increase the. Solidscontrol equipment can be severely affected by gas in the drilling mud. This condition is misinterpreted and misunderstood in most field applications. The primary problems caused by gas cutting in solids control are blinding of the shaker screens and degradation of pump output to hydrocyclones and centrifuges. Gas and plasma cutting equipment and plasma profile machines.
Gas cutting definition is the cutting of a preheated metal by a jet of oxygen. Oxyacetylene cutting safety in agriculture osha standard 1910. This is just a basic overview of how to use an acetylene torch to cut metal. Optimizing gas supply for industrial lasers laser cutting of metals and other materials has grown rapidly due to developments in laser power, advancements in cnc automation, and decreasing costs. For the latter, select the pages you wish to extract. Oxyfuel cutting is indispensable in industry today, thanks to mr thomas fletcher fromwarrington, england,who discovered that steel could be cut by means of jet of oxygen directed on to a portion of it previously heated to red heat, making it a revolutionary discovery in 1885. Lawnboy 21 149cc electric start selfpropelled gas lawn. Unit iioxygas and other cuttingwelding processes instructor guide the instructor should explain the performancebased assessment activity format at the beginning of the unit. Heavy cutting, more than 6 inches 5 or 6 gas welding light, up to 18inch 4 or 5 gas welding medium, 18 to 12inch 5 or 6 gas welding heavy, more than 12inch 6 or 8 source. Compared to other types of welding and cutting, using oxygen and fuel gas creates unique hazards.
Gas welding is still used for side of metal, cut by oxygen propane cutting torch metalbased. Use harris tip cleaner e9 pn 9000160 for two piece tips. Acetylene, dissolved safety data sheet p4559 this sds conforms to u. Opening and closing procedure gas cutting equipment set the correct working pressures with the gas flowing. What purpose o2 cylinder attaching while gas cutting or welding time archive safety slogans very useful for everyone pdf download archive sample safety manual hindi english for chemical industry archive. Smith equipment offers an extensive line of cutting torches, tips, and gas regulators. You can select the number of pages, as well as the order in. Fundamentals of gas cutting and welding ced engineering. Fundamentals of gas cutting and welding cedengineering. For best results use appropriate capacity torches and 38 hose when using tip size 6 or larger. Get info of suppliers, manufacturers, exporters, traders of gas cutting sets for buying in india.
Check and be sure the area is safe before doing any welding or cutting. Opening and closing procedures on gas cutting equipment. Find gas cutting stock images in hd and millions of other royaltyfree stock photos, illustrations and vectors in the shutterstock collection. Click split pdf, wait for the process to finish and download. Range size quantity 0769416 0 3 mm sheet metal asfn 1 0769285 3 6 mm size 2 1 0769287 6 20 mm size 364 1 0768825 20 30 mm. The energy input into the gas has to be ongoing otherwise the gas will eventually cool enough that the electrons will mate back with the ionized atoms.
Remove combustible materials from the vicinity of cutting and welding operations. 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. Safety in gas welding, cutting and similar processes page 4 of 11 explosion when cutting up or repairing tanks, drums and tyres figure 2 cutting up scrap if a welding blowpipe or burner is used on a tank or drum containing flammable material solid, liquid or vapour, it can. It tends to melt rather than vaporize, and has a higher chance of catching on fire and leaving behind melted gooey deposits on the. Introduction general comments on gas cutting drilling fluids. Choose to extract every page into a pdf or select pages to extract. Sparks can fly off from the welding or cutting operations. Each nozzle is designed to operate at specific pressures too high pressure wastes gas and can cause malfunctions. The oxyfuel process is the most widely applied industrial thermal cutting process because it can cut thicknesses from 0. Gas cylinder safety environmental health and safety. Thousands of new, highquality pictures added every day. 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.
The clean power plan aims to reduce part of a greater pattern of an annual emissions of carbon dioxide co 2. Please find some photos of gas cutting set down loaded from internet. When this happens, the plasma returns to a gas state. Welding operations continued 3 y are helpers or observers wearing proper eye protection to prevent flash burns. This brochure addresses integration of production lasers. Elastomeric rubber based diaphragms tend to absorb and outgas which may compromise the gas purity. Gas equipment profiling gas cutting machine specifications weight 35. Students will apply principles of air carbonarc cutting and plasmaarc cutting by using the equipment to make cuts, identifying cutting equipment, and answering questions about related equipment and procedures. In addition, oxyfuel cutting is still widely used, both in heavy industry and light industrial and repair operations. Oxyfuel welding, commonly referred to as oxy welding or gas welding is a process of joining metals by. Afn cutting nozzles are suitable for use with esab dh torch. Top strap cutting it will take effect much later than those announced by rivals with biggest supplier british gas cutting prices by 5% from february 27 while e. Gas cutting definition of gas cutting by merriamwebster.
Safety in gas welding, cutting and similar processes page 4 of 11 explosion when cutting up or repairing tanks, drums and tyres figure 2 cutting up scrap if a welding blowpipe or burner is used on a tank or drum containing flammable material solid, liquid or vapour, it can explode. Gas cutting always occurs during drilling of a gasbearing formation. With the information in this plan set and some ingenuity on your part, you can. When kinetic energy in a gas is increased, some of the electrons are freed from the atoms outer shell and a plasma is formed. Unit ioxygas and other cuttingwelding processes instructor guide the instructor should explain the performancebased assessment activity format at the beginning of the unit.
Share copy and redistribute the material in any medium or format. The torch flame, flying sparks, hot workpiece, and hot equipment can cause fires and burns. Safety in gas cutting operation pdf download citehr. Abs emits cyanide gas and tends to melt abs does not cut well in a laser cutter. Separate one page or a whole set for easy conversion into independent pdf files. In oxyfuel welding, a welding torch is used to weld met als. For a typical oxygas cutting outfit, also referred to as a cutting rig figure 41, you need. Bharat metal cutting gas providing you the cutting edge in business. These cutting gases are available in a wide range of cylinder, cylinder pack and cryogenic liquid vessel sizes to. Dear mr kailash bhardwaj, please find some photos of gas cutting set down loaded from internet. Pdf documents are often used because they help preserve the original content of the document, but this can make splitting the file up a little more difficult than other document formats. Safety in gas welding, cutting and similar processes. Never cut these materials cleveland public library.
The industrial gas requirements for lasers have been quite dynamic as well. Acetylene, dissolved gas safety data sheet sds p4559. Laser cutting applications entail focusing a beam of coherent light onto the metal workpiece. Vapor of the solvent is carried away as impurity when the acetylene is extracted from the gas container. Range size quantity 0769416 0 3 mm sheet metal asfn 1 0769285 3 6 mm size 2 1 0769287 6 20 mm size 364 1 0768825 20 30 mm size 116 1 for cutting and setting data see please page xx. Apr, 2010 how to cut metal with an oxygen and acetylene torch. Mar 08, 2017 image result for welding welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing fusion, which is distinct from lower temperature metaljoining techniques such as brazing and soldering, which do not melt the base metal. Have an adequate fire extinguisher readily available. 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. 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.
Air products also offers a full range of cutting gases for conventional oxyfuel, plasma arc, and laser cutting of all materials types. Regulators with stainless steel metal to metal diaphragms prevent particulates from being absorbed and later diffused into the gas stream maintaining gas purity. Additionally, smith serves the hvac and jewelry industries with a line of specialty products developed specifically for the unique application requirements of these market segments. For best starting results use nonethanol fuel with an octane rating of 87. A minimum of 20 feet must be maintained between oxidizers and flammable gases and other combustible materials, such as oil or grease. Cutting electric bills with the clean power plan 1 1. Split pdf pdf split into multiple files online free. Choose page ranges from the original document which you wish to include in each split file. Section ii requires some advance setup by the instructor. Gas cutting the common methods used in cutting metal are oxygas flame cutting, air carbonarc cutting, and plasmaarc cutting. Checking cleaning transportation of gas cutting set or unit and all other equipment concerned.
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