Oxyfuel cutting uses acetylene and oxygen to preheat metal to red hot and then uses pure oxygen to burn away the preheated metal. Oxygen and acetylene use and safety virginia department of. This book will highlight the welding and cutting processes. Oxyacetylene cutting safety in agriculture osha standard 1910. Oxyacetylene cutting is a gas flame cutting process to separate metal sheets. Average cutting speeds of oxyfuel torch operating with both vsa and cylinder oxygen, all fuels and all steel thicknesses source. 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.
Acetone can absorb many times its volume in acetylene without changing the acetylene. Little to no slag on bottom edge easily removed by scraping elements of oxy fuel cutting. The oxyacetylene handbook is a basic handbook or manual on oxyacetylene welding and cutting and their related processes. 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. Acetone can absorb many times its volume in acetylene. An oxy acetylene torch is an affordable and versatile tool used by many people to heat, weld, solder, and cut metal. 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. Equipment cutting require different cutting attachments and cutting nozzles oxy propane cutting nozzle oxy acetylene cutting nozzle economy. Cylinders are packed with a porous material and saturated with acetone. The magmate oxyacetylene gas equipment kit contains everything you need to get started, all at an affordable price. If the oxy welding cutting equipment is to be operated in a dangerous or hostile environment, the userclient is responsible for conducting an appropriate risk analysis and applying suitable controls to mitigate those additional risks. Oxyacetylene cutting safety valve personal protective. 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. In this process, oxygen gas and electrodes are used to cut roughly mild steel, lowalloy steel, stainless steel, copper, bronze, brass, monel, metal etc.
If the oxy welding cutting equipment is to be operated in a dangerous or hostile environment, the userclient is responsible for conducting an appropriate risk analysis and applying suitable controls to. The majority of preheating is done with oxygen propane. Welding and cutting steel oxyacetylene and other methods. Employees have said that it takes too long doing it this way, but this is the only. Scorpion ezcut oxyfuel cutting guide scorpion ezcut oxy.
Aug 12, 2019 oxy fuel cutting can be very intimidating to students and inexperienced welders. Oxy acetylene welds have large heat affected zones areas around the. This document contains general information about the topic discussed herein. 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 first 4steps below will talk about putting a new tank on your oxyacetylene set. Acetylene pressure oxygen pressure metal tip size thickness victor cutting equipment.
Aug 30, 2019 an oxy acetylene torch is an affordable and versatile tool used by many people to heat, weld, solder, and cut metal. Cutting air carbon arc cutting oxyacetylene cutting process name. This video will give you an indepth lesson on how to setup and break down your rig. Mechanized oxyfuel torch guide scorpion ezcut uses a preset mechanized controller and a stainless steel rail to help you make straight and clean cuts. Welding, cutting, and brazing welding is a process that joins materials together by melting a metal work piece along with a filler metal to form a strong joint. Oxygenacetylene cutting definition is gas cutting with oxygen and acetylene. Mapp is sold by the pound as a liquid instead of by the cubic foot, as with acetylene. Competencies given a functional oxyfuel gas unit, instruction and demonstration of use, each student will be able to. Oxy fuel gas cutting torch safety reminders fuel gas cutting tools are some of the most common tools used on our job sites, however at times, they are also some of the most misused tools. Wear flame resistant clothing when gas welding or cutting. This document is not an application manual and does not contain a complete statement of all factors pertaining to that topic. 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.
How to cut metal with an oxy acetylene cutting torch. Sep 29, 2018 oxy acetylene cutting is a gas flame cutting process to separate metal sheets. The tool you use for oxy acetylene cutting is called a. Oxyfuel cutting uses acetylene and oxygen to preheat metal to red hot and then uses pure. Reduce or increase the acetylene supply to the blowpipe valve until the flame just ceases to smoke. The oxyacetylene torch can be used for various tasks. The first 4steps below will talk about putting a new tank on your oxyacetylene set and starting with step 5, how to use a cutting torch set. Cutting of metals by means of flame has many advantages over other methods, specially when the metal is of irregular shape. The chemical action of the oxyacetylene flame can be adjusted. It uses extreme heat to function, and setting it up properly is one of the most important steps in using it safely. Preheat flames are used to raise the surface or edge of the steel to approximately 1800f bright red color.
Setup and shutdown procedure for oxy fuel cutting torch. Propane, propylene, or oxy acetylene, welders supply has a regulator for your rig. Pass a written test on safety and operation procedures on the oxy acetylene unit with a minimum of 100 accuracy. The electric arc takes the place of the heating flame of the oxyacetylene cutter. Oxy acetylene equipment can also be used to flamecut large pieces of material. Oxyacetylene cutting safety course in power point format. By creating a safe work environment and carefully monitoring the pressure of the oxygen and acetylene, you can use an oxyacetylene torch for any number of projects. Welding, or gas welding, and oxyfuel cutting applications tools, equipment, or machinery used when performing task.
Turn the acetylene knob on the cutting torch about a quarter of a turn and light the acetylene. Oxy fuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal heating for bending and forming and oxy fuel cutting. Operation of oxyfuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot metal. It can be used for cutting steel, welding steel, brazing and for heating metal. The separation is done by heating the surface of the material over melting temperature and burning it through the supply of additional oxygen. This instruction should be read in conjunction with. However, if it is used incorrectly, serious injury can occur to you and the equipment. Do not allow cylinder valves or regulator assemblies to come into contact with grease, oil, or lubricants. Before cutting, the cutting torch has to preheat the steel to ignition temperature at the starting point.
Cutting with the oxyfuel process is just the opposite from of welding. Oxyfuel gas cutting torch safety reminders fuel gas cutting tools are some of the most common tools used on our job sites, however at times, they are also some of the most misused tools. This document is not an application manual and does not contain a complete. Mar 29, 2019 an oxyacetylene torch, also known as a blow torch, is a dangerous cutting system, but its also a powerful and useful tool if you need to cut steel. To begin oxygenacetylene welding or cutting, open the cylinder valves slowly by means of the cylinder keys. This means if a oxygen bottle is leaking, the gas will settle. Slowly increase the oxygen via the blowpipe control valve until the white inner cone in the flame is sharply defined with the merest trace of an acetylene haze. In this unit you will be introduced to oxyacetylene welding and the safety precautions required when using oxyacetylene. Acetylene pressure oxygen pressure metal tip size thickness. Fundamentals of gas cutting and welding cedengineering. Check oxy fuel system for leaks with an approved leak detection solution or leak detector.
Careless use of oxyfuel torches has caused many fires. One 70pound mapp cylinder can accomplish the work of more than six and onehalf 225cubicfoot acetylene cylinders, making it equal to 1,500 cubic feet of acetylene. Oxygenacetylene cutting definition of oxygenacetylene. The magmate oxy acetylene gas equipment kit contains everything you need to get started, all at an affordable price. Porous filler810%, acetone42%, acetylene gas36%, reserve volume70o f 1012%. 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. 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. Oxy acetylene cutting is a gas flame cutting process to separate metal sheets.
Safety in gas welding, cutting and similar processes. Oxy fuel cutting uses acetylene and oxygen to preheat metal to red hot and then uses pure oxygen to burn away the preheated metal. Welding, cutting, and brazing welding is a process that joins materials. In order to discuss the various aspects of welding, cutting and brazing safety, first we need to cover the basics in this first module. Leather gloves required when welding cutting and when handling metal pieces with rough or sharp edges other. In modern steelage the steelmakers cut iron and steel by oxyacetylene, oxyhydrogen, oxy propane, oxynatural gas cutting.
The process consists of preheating the metal to be cut to its ignition oxidation temperature, i. Cutting with the oxy fuel process is just the opposite from of welding. This material was produced under grantsh22228sh1 from the. Fundamentals of gas cutting and welding ced engineering. Because this is achieved by oxidation, it is only effective. The oxy acetylene handbook is a basic handbook or manual on oxy acetylene welding and cutting and their related processes. Follow the precautions in this safety section and those throughout this manual for your personal safety and the safety of people near the equipment. Oxyacetylene cutting safety free download as powerpoint presentation. Smith regulators are available in economy and premium grades for hobbyists. 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. One 70pound mapp cylinder can accomplish the work of more. Consistent push or pull cutting with preset mechanized speed controller. Oxyacetylene torcheshow to use use of a cutting torch is not something that just anybody should do without training.
Never use matches or a cigarette lighter to ignite the oxyacetylene torch. When mixed together in correct proportions within a handheld torch or blowpipe, a hot flame is produced with a temperature of about 3,200c. Competencies given a functional oxy fuel gas unit, instruction and demonstration of use, each student will be able to. The preheating is done by oxyacetylene gas flame, which is supplied from. They are often found with leaking hoses, incorrect repairs, broken glass, nonfunctioning regulators, clogged tips, cracked barrels, or what have you. Smith regulators are available in economy and premium grades for hobbyists and pros. Welding and cutting steel oxy acetylene and other methods. Oxygenacetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene. The oxyacetylene torch is a safe tool if used properly. An oxyacetylene torch, also known as a blow torch, is a dangerous cutting system, but its also a powerful and useful tool if you need to cut steel. Longer rail lengths, sold separately, are available to create longer cuts without having to move the scorpion ezcut. Disadvantages of oxy acetylene welding oxy acetylene weld lines are much rougher in appearance than other kinds of welds, and require more finishing if neatness is required. In addition, oxy fuel cutting is still widely used, both in heavy industry and light industrial and repair operations.
Oxyfuel welding and cutting the oxyfuel system is an auxiliary technique to welding developed since 1903 and used to date in many industrial applications. The preheating is done by oxyacetylene gas flame, which is supplied from surrounding openings of the cutting torch. 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. The covered electrodes of mild steel come in 4 sizes and are of tubular construction. Victor oxy acetylene regulators are built with highstrength housing caps and a forged brass body for exceptional durability. Oxyfuel cutting is a chemical reaction between pure oxygen and steel to form iron oxide. 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. How to operate an oxyacetylene cutting torch snapguide. Boc masterstart lpg kit gets you started with general oxy lpg cutting and brazing with the flexibility to add accessories specific to your requirements. The resulting liquid metal slag is blown out by the cutting stream. When this temperature is attained, a jet of high pressure oxygen from a central opening of the. Oxyfuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal heating for bending and forming and oxyfuel cutting. How to set up an oxy acetylene torch with pictures wikihow. Oxy fuel cutting can be very intimidating to students and inexperienced welders.
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