All fuels produce the same quality of cut if adjusted properly on plates between 1 and 2. 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. Page 1 of 2 palm beach state college personal protective equipment ppe job hazard assessment department. Provides practice leading to good handeye coordination. Accessory accessory processes oxyfuel welding and cutting. See torch and cutting nozzles section beginning on page 15. Oxy gasoline is primarily used for cutting heavy stuff.
Welding torch or blow pipe with a set of nozzles and gas lighter. Careless use of oxyfuel torches has caused many fires. Templatetracing profile cutter, ideal for cutting multiple. Experts with proven credentials and a high standing within the research fraternity have presented an indepth analysis of the subject matter, bringing to bear their unparalleled domain knowledge and vast research experience. First close the acetylene knob all the way until the flame is extinguished. Introduction to gas welding and cutting a pdh online. Flame cutting is used to make the edges of the work pieces and for sheet cutting films of metal from 1 to 12 millimeters thin, pipes, steel bars, and other ferrous.
Introduction to gas welding and cutting a pdh online course. Because this is achieved by oxidation, it is only effective. Oxy fuel gas cutting and welding operation of oxy fuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot metal, meatl fumes and combustion products. Propane or nat gas multitorch equipment, will often offer a much lower cost alternative to costly plasma cutting equipment. In modern steelage the steelmakers cut iron and steel by oxy acetylene, oxy hydrogen, oxy propane, oxy natural gas cutting blowpipes easily, speedily, and cleanly. The tool you use for oxyacetylene cutting is called a.
When mixed together in correct proportions within a handheld torch or blowpipe, a hot flame is produced with a temperature of about 3,200c. It is an invaluable aid to industry as well as in schools and universities. A prefabricated steel template is fastened to the template arm. Hobart is registered to the iso 9001 quality system standard. Only mild steel and some low alloys meet the above conditions and can be cut effectively with the oxy fuel process. Cut metals with oxyacetylene cutting torch job titles performing task. Every effort has been extended in the preparation of this book to make it a textbook on the manual application of the oxy acetylene processes that. If you light up the tip and the flame is away from the tip, decrease the acetylene pressure and let the flame come back against the tip. This equipment will perform in conformity with the description thereof contained in this manual and accompa.
Cutting with the oxy fuel process is just the opposite from of welding. Follow the precautions in this safety section and those throughout this manual for your personal safety and the safety of people near the equipment. Oxyfuel cutting uses acetylene and oxygen to preheat metal to red hot and then uses pure oxygen to burn away the preheated metal. Oxy fuel cutting uses acetylene and oxygen to preheat metal to red hot and then uses pure oxygen to burn away the preheated metal. Ppt oxyacetylene welding powerpoint presentation free. It uses extreme heat to function, and setting it up properly is one of the most important steps in using it safely. By burning acetylene enriched by oxygen, the attachment and tip heat the metal to critical temperature. Check for damage on valves, fittings and seating areas.
The tx55 is ideal where multiple cuts of a certain shape or profile are required. This guide provides the basic knowledge required for using the gas. Safety in gas welding, cutting and similar processes hse. Oxyfuel welding and cutting the oxyfuel system is an auxiliary technique to welding developed since 1903 and used to date in many industrial applications. February 2015 issue 2 pg 2 of 2 the instructions recommended within this document apply to normal risk conditions. Oxyacetylene cutting can be used to cut thicknesses from 28. Now open both cylinders valves no specific order but only open the acetylene tank about a 12 turn, the oxygen should be opened all the way. The oxy acetylene handbook is a basic handbook or manual on oxy acetylene welding and cutting and their related processes. The chemical action of the oxyacetylene flame can be adjusted. As i recall, popping loud pop that puts out the torch happens if you dip the cone into the molten puddle or get too near it. Flame cutting is used to make the edges of the work pieces and for sheet cutting films of metal from 1.
Preheat times and pierce times are significantly affected by high preheat flame settings. Oxyacetylene cutting safety in agriculture osha standard 1910. The separation is done by heating the surface of the material over melting temperature and burning it through the supply of additional oxygen. Cutting with the oxyfuel process is just the opposite from of welding. Fusion weldinga welding process that joins metals by heating them to be a melting point and allowing them to fuse or flow together. Oxyfuel gas equipment has many uses welding, cutting, heating. An oxy acetylene torch is an affordable and versatile tool used by many people to heat, weld, solder, and cut metal. The oxy acetylene and other oxy fuel 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. Always refer to oxygen and acetylene by their proper names. Oxyacetylene torches have an attachment for cutting, which can be attached to the welding torch. Ppt oxyacetylene welding powerpoint presentation free to.
Others want to carry documents around with them on their mobile phones and read while they are on the move. Teaches methods of using welding equipment and techniques that are useful in other welding processes. 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. Mediumduty oxyacetylene cutting and welding outfit 770 502.
Acetylene acetylene north america cyl valve commercial cga 300 acetylene has most btus concentrated in the inner flame resulting in the quickest pre heat times. Oxy fuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal heating for bending and forming and oxy fuel cutting. Fundamentals of gas cutting and welding cedengineering. There were no concerns about the fuel detonating if mishandled either. Oxygasoline is primarily used for cutting heavy stuff. Hazard identification continued symptoms of overexposure by route of exposure. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Page 3 of 3 tx55 profile cutter what is the tx55 designed to do. In modern steelage the steelmakers cut iron and steel by oxyacetylene, oxyhydrogen, oxy propane, oxynatural gas cutting blowpipes easily, speedily, and cleanly. Download oxyacetylene welding and cutting pdf file size.
Benefits of learning oxy acetylene welding and cutting. Be skeptical of claims made by proprietary fuel gas suppliers for hotter flame temperature. Turn off acetylene torch valve you will have purged the acetylene line at the same. In planning the job, have the tanks firmly secured to prevent tipping over, the hose should be behind you so as to protect it from damage due to flying sparks. Oxyacetylene cutting is a gas flame cutting process to separate metal sheets. Om251 341 page 2 welding and cutting on closed containers, such as tanks, drums, or pipes, can. Module 2 thermal processes unit 1 introduction to thermal processes and safety unit 2 introduction to oxyacetylene welding unit 3.
Oxyfuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal heating for bending and forming and oxyfuel cutting. Retro systems assumes no responsibility for its accuracy. 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. Teaches methods used in forming and controlling a weld puddle. Completed inspect the torch handle and cutting attachment thoroughly. As a teenager in the 50s i burned cars apart in a wrecking yard with oxy propane, it works very well. Cpcpcm2049a cut using oxylpgacetylene equipment date this document was generated. Cutting of metals by means of flame has many advantages over other methods, specially when the metal is of irregular shape. Screw in acetylene regulator thandle adjusting valve to working pressure for. However, as the metal thickness increased, the relative cutting rate of the oxygasoline torch over the oxyacetylene torch increased. In planning the job, have the tanks firmly secured to prevent tipping over, the hose should be behind you so as to protect it. The oxyacetylene process produces a high temperature flame, over 3000 degrees c, by the combustion of pure oxygen and acetylene. The tool you use for oxy acetylene cutting is called a. Oxyacetylene cutting safety occupational safety and.
The resulting liquid metal slag is blown out by the cutting stream. Factors affecting quality in oxyfuel cutting operators manual 0558006464 06 2006. Liquid petroleum cylinders are painted aluminium and have lefthand threads. Storage area means where more than 1 bottle of each are stored. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. See preheat flame cost calculation chart on page 8. Oxy acetylene torches have an attachment for cutting, which can be attached to the welding torch. Check oxy fuel system for leaks with an approved leak detection solution or leak detector. I used to be pretty good at it back in high school welding class, 20 years ago. Safety in gas welding, cutting and similar processes. Inspection of portable and oxy fuel gas systems wi37. How to cut metal with an oxy acetylene cutting torch. Oxyfuel cutting is a chemical reaction between pure oxygen and steel to form iron oxide. For only cutting and heating propane will do the job and its safer than acetylene too.
A comprehensive treatise on the practice of welding cast iron, malleable iron, steel, copper, brass, bronze, and aluminum by the oxy acetylene methods, together with concise information on the equipment required for both welding and cutting by this process volume 12 of machinerys mechanical library. The cutting attachment hooks up to the torch handle and holds the cutting tip. At this point, the cutting oxygen lever is depressed, delivering a stream of oxygen that cuts. Aug 30, 2019 an oxy acetylene torch is an affordable and versatile tool used by many people to heat, weld, solder, and cut metal. Safe operating procedures sop 15 oxy acetylene cutting. It is the only gas mixture hot enough to melt steel. 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. In this unit you will be introduced to oxyfuel cutting and the safety precautions required when using oxyfuel cutting equipment. Module 2 thermal processes unit 1 introduction to thermal processes and safety unit 2 introduction to oxy acetylene welding unit 3. Inspection of portable and oxy fuel gas systems central. If the oxy welding cutting equipment is to be operated in a dangerous or hostile environment, the userclient. To ensure the safe use of the workers when using the oxyacetylene welding and cutting torch.
Turn the acetylene knob on the cutting torch about a quarter of a turn and light the acetylene. As a teenager in the 50s i burned cars apart in a wrecking yard with oxypropane, it works very well. Data on this page was taken from victor equipment company documentation. 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. Following the inspection and installation of the regulators and hoses, the checklist is divided into two sections.
How to operate an oxyacetylene cutting torch snapguide. In this unit you will be introduced to oxy fuel cutting and the safety precautions required when using oxy fuel cutting equipment. The most significant route of overexposure for this product is by inhalation. Welcome to a better way of cutting, welding, brazing and heating with boc gas equipment. For very thin plate cutting less than or equal to 1, acetylene provides minimum plate distortion and cleanest cut because of high inner btu and low total btu. The oxyacetylene handbook is a basic handbook or manual on oxyacetylene welding and cutting and their related processes. The oxygasoline torch cut all thicknesses of steel between 0. Oxygenacetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene. Winner of the standing ovation award for best powerpoint templates from presentations magazine. This course content is in the following pdf document. Setup and shutdown procedure for oxy fuel cutting torch. Many people prefer to read offline or to print out text and read from the real printed page. Pure oxygen, instead of air, is used to increase the. How to set up an oxy acetylene torch with pictures wikihow.
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. Every effort has been extended in the preparation of this book to make it a textbook on the manual application of the oxyacetylene processes that. 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 addition, oxy fuel cutting is still widely used, both in heavy industry and light industrial and repair operations. This book will highlight the welding and cutting processes. It is acceptable to use acetylene regulators that indicate a static pressure up to 22 psi 151 kpa. Sep 29, 2018 oxy acetylene cutting is a gas flame cutting process to separate metal sheets. Fundamentals of gas cutting and welding ced engineering. Preheat flames are used to raise the surface or edge of the steel to approximately 1800f bright red color.
1419 1416 1253 1259 858 203 201 666 387 889 583 344 1310 919 913 460 80 181 932 1066 470 825 275 551 1300 321 75 469 914