Light up and adjust gas pressures to correct setting and cut a selection of different thicknesses of metal pieces using oxyacetylene cutting equipment. Purge the oxygen gas line and check for constant gas flow. Gases oxygen, acetylene and liquefied petroleum gas lpg. How to use an oxyacetylene cutting torch part 1 youtube.
Cutting gas oxygen fuel gas acetylene lpg liquid petroleum gas. Use only acetylene or propane gas and oxygen with this equipment. Oxy fuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal heating for bending and forming and oxy fuel cutting. The other equipments serves the same function as in case of oxy acetylene gas welding. The paint program can help you make new image files, but it cannot open document or pdf file. Oxy fuel cutting ofc is similar to ox fuel welding except that. This article explains what pdfs are, how to open one, all the different ways. Checking cleaning transportation of gas cutting set or unit and all other equipment concerned. Large flutes on hand tightening nut for a better grip when wearing welding gloves. Pdf oxyacetylene flame cutting is a relevant and widespread industrial process. The chemical action of the oxy acetylene flame can be adjusted.
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. However, with almost 100 years of experience in the handling of high pressure gases, the. In this unit you will be introduced to oxy acetylene welding and the safety precautions required when using oxy acetylene equipment. Oxy fuel welding and oxy fuel cutting are processes that use fuel gases and oxygen to weld or cut metals. When mixed together in correct proportions within a handheld torch or blowpipe, a hot flame is produced with a temperature of about 3,200c. May 01, 2015 oxy fuel gas cylinder storage oxy fuel gas cylinder storage oar 437 division 2q division 3j you must properly store oxygen and fuel gas cylinders used for welding, cutting, brazing, soldering, and thermal spraying when they are not in use. For storage in excess of 2,000 cubic feet 56 m 3 total gas capacity of cylinders or 300 5.
It is acceptable to use acetylene regulators that indicate a static pressure up to 22 psi 151 kpa. Fundamentals of gas cutting and welding ced engineering. In this video i discuss the basics of torches, tanks, regulators, and safety equipment. Searching for a specific type of document on the internet is sometimes like looking for a needle in a haystack. Gas welding has been around for many years and when it is carried out by a skilled operator, it can be useful in welding a wide range of materials. Oregon plus os fact sheet fact sheet oxyfuel gas cylinder. Connector threads acetylene connectors have a vgroove and lefthanded threads, and oxygen connectors have plain surfaces and righthanded. If your scanner saves files as pdf portbale document format files, the potential exists to merge the individual files into one doc. If your pdf reader is displaying an error instead of opening a pdf file, chances are that the file is c. Pdf file or convert a pdf file to docx, jpg, or other file format. Then purge the acetylene gas line and check for constant gas flow. Luckily, there are lots of free and paid tools that can compress a pdf file in just a few easy steps. Cutting, weldingbrazing and heating tip flow and pressure data.
Most electronic documents such as software manuals, hardware manuals and ebooks come in the pdf portable document format file format. For best results use appropriate capacity torches and 38 hose when using tip size 6 or larger. 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. Never perform welding, cutting, and heating operations on a container that has held toxic or combustible liquids or vapors. Oxy acetylene safety and procedures basic background knowledge the greatest use for the oxyacetylene equipment is as a heating and metal cutting device. Safe operating procedures sop 15 oxy acetylene cutting. Follow the manufacturers recommendations for the correct operating pressures for the metal being welded and for the tip size being used. For the song, see welding, oxy welding, or gas welding in the u. I paid for a pro membership specifically to enable this feature. Oxy acetylene welding is a very important piece of. Read on to find out just how to combine multiple pdf files on macos and windows 10. Open the fuel gas cylinder valve completely to seal the cylinder back seal packing.
A common propaneair flame burns at about 2,250 k, a propaneoxygen flame burns at about 2,526 k, an oxyhydrogen flame burns at. An oversized pdf file can be hard to send through email and may not upload onto certain file managers. No welding or cutting shall be performed on an acetylene or oxygen pipeline, including the attachment of hangers or supports, until the line has been purged. This book will highlight the welding and cutting processes. Oxy acetylene cutting can be used to cut thicknesses from 28. Open the acetylene blowpipe handpiece valve very slightly and light with a flint lighter only.
Comet blowpipes cutting attachments and consumables. Reference 2h, 3f and 3j to this section rather than reprint it in the other subdivisions 14 oar 4370023253 general requirements for acetylene generators 253f a when using acetylene generators you must. Oxy fuel welding and cutting oxyacetylene redirects here. Pure oxygen, instead of air, is used to increase the flame temperature to allow localized melting of the workpiece material in a room environment.
As a welding torch, the basic operation of an oxyacetylene unit is blending two gases, oxygen and acetylene, together in the right proportion to create a proper size. Oxycetylene welding is a very common welding process. Gces main business was originally concentrated in the oxy acetylene cutting and welding market. By michelle rae uy 24 january 2020 knowing how to combine pdf files isnt reserved. The covered electrodes of mild steel come in 4 sizes and are of tubular construction. Download oxy acetylene welding and cutting pdf file size. Module 2 thermal processes unit 1 introduction to thermal processes and safety unit 2 introduction to oxy acetylene welding unit 3. The spark lighter is used to ignite the oxy acetylene mixture at the tip of cutting torch.
Many people prefer to read offline or to print out text and read from the real printed page. This means it can be viewed across multiple devices, regardless of the underlying operating system. Oxy gas and other cuttingwelding processes unit objective. With instruction and practice it can also be used to weld and braze steel and cast iron, which can sometimes be too difficult with other welding processes. Cutting, weldingbrazing and heating tip flow and pressure. Hose for oxy fuel gas service shall comply with the specification for rubber welding hose, 1958, compressed gas association and rubber.
Gas welding is a method of joining similar metals by heating the adjacent surfaces to the melting point with an oxy acetylene flame, and allowing the two parts to fuse together, with a filler metal being required on materials 316 thick or more. Never perform welding, cutting, and heating operations on a container that has. With a 2hose cutting torch, preheat pressure is set by the cutting oxygen. Acetylene one piece high gas withdrawal rates will require cylinder manifolding. There are a number of different types of oxy acetylene torches on the. In this process, oxygen gas and electrodes are used to cut roughly mild steel, lowalloy steel, stainless steel, copper, bronze, brass, monel, metal etc. The pressure in the cylinder is directly related to the quantity of gas stored. Mediumduty oxyacetylene cutting and welding outfit 770 502. Acetylene generators oxy fuel gas welding and cutting 422 note 1.
Fundamentals of gas cutting and welding cedengineering. Immediately evacaute all personnel from danger area. Download oxyacetylene welding and cutting pdf file size. Gas turn on acetylene gas first and light it before turning oxygen on refer to operating instructions gas hoses to be well clear of weld splatter at all times ensure weld area is well ventilated operator to be aware of proximity of a fire extinguisher ensure weld torch valves and gas regulators are. Unit ii oxygas and other cutting welding processes. Adobe designed the portable document format, or pdf, to be a document platform viewable on virtually any modern operating system. Allows strip cutting and a closer distance between small parts. Oxyacetylene cutting process questions answer the following questions.
Open acetylene fuel gas valve on torch handle for 3 to 5 seconds, then shut it off o check both regulator pressures and reset if necessary. Compressed gas cylinders themselves are potential hazards if they are improperly handled. Turn the acetylene knob on the cutting torch about a quarter of a turn and light the acetylene. Acetylene gas can also condense and drip off the torch, causing a fire risk. Pdf kinetics of oxyfuel gas cutting of steels researchgate. Auto ignition auto capacitive height control long tip life quick change tip technology auto gas oxy fuel gas system precise control of gas manifold pressure. Setup and shutdown procedure for oxy fuel cutting torch. Basic gas welding and cutting department of training and. To combine pdf files into a single pdf document is easier than it looks. Torches with flashback arrestors require up to 25% more pressure as tip size increases 15 psi maximum acetylene. It has, however, been largely superseded by more modern welding methods yet it remains a desirable base. One of the fun things about computers is playing with programs like paint. French engineers edmond fouche and charles picard became the first to develop oxygen acetylene welding in 1903.
Introduction to gas welding and cutting a pdh online course. Keep torch flame or sparks away from cylinder, regulator, and gas hose. How to shrink a pdf file that is too large techwalla. Here is part 1 on how to use an oxy fuel cutting torch. Check oxy fuel system for leaks with an approved leak detection solution or leak detector. 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.
One type of heating nozzle for all fuel gases extended lifetime of consumable nozzles conform to iso 5172 application fields oxygen cutting of straight and shaped cuts in accordance with iso 90 oxygen cutting from 3 to 300 mm hole piercing up to 150 mm can be used with with diff erent fuel gases compatible with. To avoid this, the rate of withdrawal of gas should be restricted to the values given in the british compressed gases association bcga code of practice the design and construction of manifolds using acetylene gas from 1. Fusion weldinga welding process that joins metals by heating them to be a melting point and allowing them to fuse or flow together. Coverts a single oxy fuel cutting torch into dual cutting torches. Oxygen acetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene. 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. Gas welding is still used for side of metal, cut by oxygen propane cutting torch. Depending on the type of scanner you have, you might only be able to scan one page of a document at a time. Generally, hc gases are used as fuel gas in oxy fuel gas cutting. Gas welding and steel flame cutting basic gas welding procedures gas welding. The electric arc takes the place of the heating flame of the oxy acetylene cutter. The next step in oxy fuel cutting from the market leaders. French engineers edmond fouche and charles picard became the rst to develop oxygen acetylene welding in 1903. With instruction and practice it can also be used to weld and braze steel and cast iron, which can sometimes be.
Gas turn on acetylene gas first and light it before turning oxygen on refer to operating instructions gas hoses to be well clear of weld splatter at all times. 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. Pdf oxyfuel welding and cutting sewalem gezie academia. Students will apply principles of oxy gas cutting and welding and other processes, such as air carbonarc cutting and plasmaarc cutting, by using the equipment to perform welds and cuts, identifying welding and cutting equipment, and answering questions about related equipment and. Pdf is a hugely popular format for documents simply because it is independent of the hardware or application used to create that file.
Following the inspection and installation of the regulators and hoses, the checklist is divided into two sections. Stock number fuel gas cutting torch cutting tip oxygen regulator fuel gas regulator includes hbsh510s acetylene sc229 sc122 40175540s cga 540 4015510s cga 510 hb190 hard hat gaugeregulator guard, operations manual hbsh300s 4015300s cga 300 hbas30510 acetylene sc229 sc121 30100540 cga 540 3015510 cga 510 20ft. A pdf file is a portable document format file, developed by adobe systems. Acetylene generators oxyfuel gas welding and cutting 422. Here are a few facts and tips to keep our employees safe when using an oxy fuel gas cutting torch. Oxy acetylene welding is a very important piece of equipment for any shop. Inspection of portable and oxy fuel gas systems central. Use selfcontained breathing apparatus where needed. Others want to carry documents around with them on their mobile phones and read while they are on the move.
Oxyfuel welding, heating and cutting concoa gas pressure. The pdf format allows you to create documents in countless applications and share them with others for viewing. Follow the precautions in this safety section and those throughout this manual for your personal safety and the safety of people near the equipment. Cutting of metals by means of flame has many advantages over other methods, specially when the metal is of irregular shape. By varying the relative amounts of acetylene and oxygen, a welder can produce different flame atmospheres and temperatures as he requires.
This course content is in the following pdf document. Pure oxygen, instead of air, is used to increase the. Oxy acetylene cutting safety in agriculture osha standard 1910. You can use the tools in paint to add something to a different document. Transportspecial nonporous hoses are used to transfer the gases from the cylinders to the torch. In oxy fuel cutting, a torch is used to heat metal to its kindling temperature. The next step in oxyfuel cutting from the market leaders. Use the following internet link to find the answers.
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