It can be used for cutting steel, welding steel, brazing and for heating metal. Oxyacetylene, commonly known as oxyfuel, is one of the oldest welding processes, though in recent years, it has become less popular in industrial applications. When mixed together in correct proportions within a handheld torch or blowpipe, a hot flame is produced with a temperature of about 3,200c. Health and safety in welding pdf 564 kb welding health and safety assessment. A mixture of oxygen and acetylene, burns as an intense focussed flame, at approximately 3,500 degrees centigrade. Gas welding equipment acetylene manifold systems for welding, cutting and allied processes general requirements. Oxy acetylene welding leaving certificate engineering notes. Gas welding is a type of liquid state welding process, in which fuel gas burns to.
Oxy acetylene welding is a welding process manually, in which the surfaces to be joined, which is warming to melt by a gas flame oxyacetylene with or without filler metal, where the connection process without emphasis. Oxygen acetylene welding, or just oxy acetylene welding, is a famed example of the welding process. This is one of the most important types of welding process commonly called as oxyacetylene or oxyfuel welding. The chemical action of the oxyacetylene flame can be adjusted.
Use an approved oilfree leak detection fluid or leak detec tor to locate possible leaks. Setting up the oxyacetylene equipment at techshop menlo. Oxy acetylene is one of the oldest and most universally used welding processes. Portable tote oxyacetylene cutting and welding outfit.
At the end of the articles you will find the download pdf button that you. Pass a written test on safety and operation procedures on the oxy acetylene unit with a minimum of 100 accuracy. Setup and shutdown procedure for oxyfuel cutting torch a handout containing the highlights of the video titled setup and shutdown procedure for oxyfuel welding. Fundamentals of gas cutting and welding ced engineering.
Ten years ago the oxyacetylene method of welding and cut ting metals. There is also a workplace assessment tool and a permit to work form. How to properly light, adjust and shut down an oxyacetylene torch harris products group. The oxygen supports higher combustion, the acetylene is the fuel for the combustion. 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. In this process, mostly oxy acetylene gas is used as fuel gas. Working safely with acetylene page 1 of 5 introduction this leaflet provides guidance on the fire and explosion hazards of acetylene. Oxyfuel gas cutting and welding operation of oxyfuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot. In this process, mostly oxyacetylene gas is used as fuel gas.
The purpose of the welding handbook for maritime welders is to provide guidance in modern welding and related processes and to provide the welder with a source of practical information on the right solution to specific onboard welding problems. Oxyacetylene welding oaw the oxyacetylene welding process uses a combination of oxygen and acetylene gas to provide a high temperature flame. Repeat this procedure every time the equipment is set up or a cylinder is changed. Experience gained from user contact and welding training of crewmembers showed that. This welding oxyacetylene standard operating procedure sop provides a way for your business to outline stepbystep safe processes when welding oxyacetylene. Oxyacetylene is one of the oldest and most universally used welding processes. French engineers edmond fouche and charles picard became the first to develop oxygenacetylene welding in 1903. For detailed information about how to achieve better cut quality with oxyfuel cutting, download the free pdf file below. One of the most commonly used applications of acetylene gas is oxyacetylene welding, oxy welding, or gas welding. Welding part 1 oxyacetylene welding collision blast. When mixed together in correct proportions within a handheld torch or blowpipe, a relatively hot flame is produced with a temperature of about 3,200 deg. Opening and closing procedure gas cutting equipment copper piping welding brazing objective on completion of this element you will be able to join pipes in the downhand position, by means of the recognised oxy acetylene silver soldering and copper joining methods.
The equipment is cheaper than most other types of welding rigs e. In the case of soldering, however, only the metal used as the junction is heated, while the joined metals are not. Air products welders handbook fusion welding the most widely used welding processes rely on fusion of the components at the joint line. Oxyacetylene welding plant high pressure system the term oxy acetylene welding plant refers to the basic equipment needed to weld. The extremely high heat depends on the mixture of two types of gaseous substances, oxygen and acetylene. Gas welding 7 although the oxyacetylene process has been introduced long time ago it. Oxy fuel equipment is versatile, lending itself to welding, brazing, braze welding, silver soldering, metal heating for bending and forming and oxy fuel cutting. The other equipments serves the same function as in case of oxyacetylene gas welding. Many people prefer to read offline or to print out text and read from the real printed page. Oaw is one of the easiest forms of welding to learn and the equipment is low cost. It is for people who use acetylene for welding, cutting and similar processes. Open the valve on the acetylene cylinder no more than threefourths of a turn so it can be closed quickly in case of emergency. Oxy fuel gas cutting and welding operation of oxy fuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot.
Oxygen acetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene. Video an introduction to gas welding oxyacetylene oxyacetylene gas welding is commonly used to permanently join mild steel. The oxyacetylene torch can be used for various tasks. Oxygenacetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene. Gas welding and cutting oxy fuel welding, commonly referred to as oxy welding or gas welding is a process of joining metals by application of heat created by gas flame. Supply system or due to the hot slag resulted from the. Oxyacetylene welding by matt scott introduction oaw is a welding process that heats the base metal with a controlled mixture of acetylene and oxygen gas. Oxyacetylene cutting is also just as easy to learn and provides a means to cut through very thick materials. Oxy acetylene welding oxy acetylene, commonly known as oxy fuel, is one of the. Welding oxyacetylene sop standard operating procedure. Opening and closing procedures on gas cutting equipment.
However, it is still widely used for a variety of applications. The leaflet does not cover fixed installations where acetylene is used see. Oxyacetylene welding is simple in concept two pieces of metal are brought together, and the touching edges are melted by the flame with or without the addition of filler rod. The chemical action of the oxy acetylene flame can be adjusted. In general, it is designed for welding operators, technicians, and supervisors looking to gain a better understanding of welding repair. Oxyfuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal heating for bending and forming and oxyfuel cutting. Setting up the oxyacetylene equipment at techshop menlo park.
You have perhaps heard of soldering, which also involves binding metals together via heating. The oxyacetylene torch is a safe tool if used properly. When a worker wears eyewear equipped with filter lenses under a welding helmet, the shade number eye protection against radiant energy during welding and cutting in shipyard employment of the lens in the helmet may be reduced. In oxy acetylene welding, oxygen and acetylene gas are combined in a torch handle to produce a flame that burns at over 6000 degrees fahrenheit. Safer use of acetylene kent fire and rescue service. Gas flame the molten metal must be protected from the atmosphere absorption of. Setup and shutdown procedure for oxy fuel cutting torch a handout containing the highlights of the video titled setup and shutdown procedure for oxy fuel welding. The choice of a fuel gas is based on its ability to burn in air or oxygen and will be dependant on the specific. The oxyacetylene process produces a high temperature flame, over 3000 degrees c, by the combustion of pure oxygen and acetylene. This includes, but is not limited to, brazing, cutting, grinding, soldering, torchapplied roofing, and welding. This heat is further used to melt interface surfaces of welding plates which are held together to form a joint. While welding, the pipes are rotated constantly so as to weld the seam in the horizontal position only.
The oxyacetylene flame produces an intense bright light that causes discomfort and possible injury to the eyes. A handout containing the highlights of the video titled setup and shutdown procedure for oxyfuel cutting torch. The unique feature of this process is that it uses fuel gases such as hydrogen, natural gas, methane and oxygen to fuse and cut metal pieces. Oxyacetylene welding also known as oxyacetylene welding uses an oxyfuel gas flame can be applied with or without pressure can be applied with or without the use of filler materials 5. In 1903 edmond and charles picard discover this welding type. Hot work procedures and permit policy hot work is any temporary or permanent operation that involves open flames or produces heat andor sparks.
A manual on oxyacetylene welding and cutting procedures second edition linde company on. Introduction fuel gases are mostly hydrocarbon based and each has its own unique properties. Before use visual checklist operators should always follow company approved procedures. This instructable is only to guide you during your first setup of the rig. This process can be done with or without help of filler material. A mixture of oxygen and acetylene, burns as an intense focussed flame, at approximately 3,500 d. Provides instructions on the use of the equipment both prior to and during operation.
In addition to the purposes of welding connecting, gas welding can also be used as preheating, brazing, cutting and hard facing. Setup and shutdown procedure for oxy fuel cutting torch. Cutting with the oxyfuel process is just the opposite from of welding. Fundamentals of gas cutting and welding cedengineering.
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. Oxy acetylene welding plant high pressure system the term oxy acetylene welding plant refers to the basic equipment needed to weld. Jan 25, 2017 oxy acetylene welding is a very common welding process that dates back to 1890s, wherein oxygen and acetylene are used as the two major welding gases. However, if it is used incorrectly, serious injury can occur to you and the equipment. Oxyfuel oxyacetylene welding a guide to gas welding. In order to comfortably and safely see the flame when welding or cutting, welding goggles must be worn.
Oxyacetylene welding, commonly referred to as gas welding, is a process which relies on combustion of oxygen and acetylene. When using an oxygenfuel gas process to perform welding or cutting, the. Oxy acetylene welding as acetylene is highly explosive at a pressure more than 200 kpa, hence it is stored in a cylinder filled with 80 to 85% porous material such as calcium silicate and then filled with acetone which. Download oxyacetylene welding and cutting pdf file size. Welding principles and procedures course ntt training. Oxyfuel welding commonly called oxyacetylene welding, oxy welding, or gas welding in the u. In gas welding and flame cutting, a fuel gas is mixed with oxygen or air in a blowpipe to. Guidelines are given on the principal health and safety considerations for oxyacetylene welding to ensure safe welding practices. Download gas welding process pdf at the end of the article.
Standard operating procedure sop acetylene and oxygen safe. The spark lighter is used to ignite the oxyacetylene mixture at the tip of cutting torch. The oxyacetylene welding process uses a combination of oxygen and acetylene gas in the approved ratio to provide a. A comprehensive treatise on the practice of welding cast iron, malleable iron, steel, copper, brass, bronze, and aluminum by the oxyacetylene methods, together with concise information on the equipment required for both welding and cutting by this process. Equipment, flames, working, advantage, applications. The heat from the torch allows for the melting and mixing of the base metal and filler metal to form a solid weld. Safer use of acetylene every year, fire and rescue services attend hundreds of fires and incidents involving acetylene cylinders.
In oxy fuel gaswelding processes, the combustion takes place in two stages. 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. In fusion welding, a heat source melts the metal to form a bridge between the components. In oxyacetylene welding, oxygen and acetylene gas are combined in a torch handle to produce a flame that burns at over 6000 degrees fahrenheit. Apr 16, 2017 gas welding is a type of liquid state welding process in which fuel gases burns to generate heat. Competencies given a functional oxy fuel gas unit, instruction and demonstration of use, each student will be able to. There is very important information regarding the set up of the oxy welding equipment discussed in the oxy welding sbu.
This is userfriendly illustrated guidance that covers a range of topics including training and qualifications, fire and explosion prevention, local exhaust ventilation, and noise and vibration. Always have the spindle key in the acetylene cylinder valve. Acetylene pressures are for tips with light preheating flames for use on clean plate. Socalled oxyfuel welding supplanted the relatively ancient forge welding, which involves heating two pieces of metal, then hammering them together. Safety for oxyacetylene welding thompson rivers university.
Oxy acetylene welding ofw fundamentals pressure settings. This is a special welding technique used for butt welding of steel pipes. Others want to carry documents around with them on their mobile phones and read while they are on th. Oxyacetylene welding is a very common welding process that dates back to 1890s, wherein oxygen and acetylene are used as the two major welding gases. Eye protection against radiant energy during welding and. Setup and shutdown procedure for oxyfuel cutting torch.
Oxygenacetylene welding, or gas welding, is a process which relies on. If a cylinder is involved in fire, the risk of explosion can last for up to 24 hours after the fire has been extinguished. This module will introduce you to the oxyacetylene welding oaw and cutting process. This is a processoriented training program and thus also great for crosstraining. Safety and emergency procedures recommends the use of a flashback arrestor on. When opening tank valves, always open valves slowly so pressure on regulators is. Gas welding is a type of liquid state welding process in which fuel gases burns to generate heat. Oxyacetylene oa welding is one of the many types of welding supported by the dp metals shop. Welding part 1 oxyacetylene welding oxyacetylene welding we use oxyacetylene for brazing in the collision repair industry, but, it is not really used for cutting much in the automotive industry, as it create too much heat and can warp or ruin todays metals. 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. Lighting, adjusting and shutting down an oxygenacetylene torch is easy especially when following the proper procedures.
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