Pressure regulators can be considered to be precision instruments. Description. When the welding torch is resting, the flame is extinguished automatically. When oxygen and acetylene are mixed in right proportions within a blowpipe or hand-held torch, they can produce a very hot flame, with a temperature as high as 3,200 degrees. I've learned from hands-on experience what welding gear works and what doesn't. Besides acetylene gas is also used hydrogen gas, natural gas, propane, for metals with a low melting point. However, it is still widely used for a variety of applications. Opening the valves suddenly can not only damage the regulators but might also lead to an accident. Once you have lighted up the blowpipe and achieved a neutral flame, you are all set to start Oxy-Acetylene welding. This program shows operators how to use Oxy-acetylene equipment safely and correctly. The metals that are welded with Oxy-Acetylene include low-alloy steel, low-carbon steel, wrought iron, and cast iron. For this very reason, you should always open the gas cylinder valve smoothly and slowly with the help of the Spindle Key. Muller Media LLC also participates in affiliate programs with Bluehost, Clickbank, CJ, ShareASale, and other sites. A member has noted a number of incidents resulting in fires caused by perished hoses and flashbacks involving oxy-acetylene cutting equipment, and has shared the following information with IMCA for use as part of a safety flash. Oxygen is obtained from the air where the air itself contains oxygen (21%), also contain nitrogen (78%), argon (0.9%), neon, hydrogen, carbon dioxide, and other elements that form a gas. The rightward technique is faster as compared to the leftward technique. The gland nut around the cylinder valve should be tightened clockwise using a spanner to ensure that no gas is leaking, thereby reducing the risk of accidents. Video for my high school students to follow as they learn the process of using the Oxy-Acetylene torch. For our full range, visit our website or call 0800 195 1313 today. ADVERTISEMENTS: Subject-Matter of Oxy-Acetylene Cutting Process: In modern steel-age the steel-makers cut Iron and Steel by oxy-acetylene, oxy-hydrogen, oxy- propane, oxy-natural gas cutting blowpipes easily, speedily, and cleanly. Oxy-Acetylene welding works on a simple concept, that is, bring two pieces of metals together such that their edges are touching. Oxy acetylene welding 1. Bronze welding, as the name implies, is used when there is a need to make joints in copper or make repairs to cast iron. Technically, the oxygen is obtained from liquefied air. Gas welding uses tanks of compressed oxygen and fuel—most commonly acetylene—feeding these gases through hoses to a handheld torch, producing an extremely hot and easy-to-control flame. Start by opening the valves of oxygen and acetylene gas cylinders gradually, with the help of cylinder keys. And this welding process is still very popular today, mainly because it does not require much equipment, and does not require power. Oxy welding involves the combustion of oxygen and acetylene through a hand-held torch. Flame traps (also called flashback arresters) must be fitted into both oxygen and acetylene gas lines to prevent a … Oxy-Acetylene welding requires a specific skill set and thorough practice, coupled with which it can be used to weld virtually any metal! It is the welding or cutting torch where the two gases, oxygen, and acetylene finally mix. So that needs oxygen purification repeatedly. Oxy-fuel equipment is versatile, If the gas has out from nozzle you can use lighter and light the torch. The most commonly used rods include fluxobronze, which is a silicone bronze rod that has been flux-coated, manganese bronze rod, and plain nickel bronze rods with suitable flux. At this point, the rod is melted onto this sweating surface in small deposits. In the commercial world, to produce a reaction Oxyacetylene do activities calcium carbide and water. The gas cylinders should be sealed to perfection, with no leaks at all. RG is Rod Gas and 65 is tensile strength 65.000 PSI. Welding (Fusion) Welding/fusion is the #3 most widely used process of the gas torch outfit. Before you start with the leftward technique, play the neutral flame at the edge of the joint until a molten weld pool is formed. This type of flame is suitable for applications where a low-heat flame is required. WZQH 16 Inches,932℉,Leather Forge Welding... Black Stallion FN9-30C 30" 9oz. Oxy-acetylene welding of cast iron is comparatively easy, if attention is paid to some simple rules. The temperature of the flame is hot enough to melt the edges of the metal, and hence, fuse two metal pieces together. EAL Level 1 Award Introduction to Oxy-Acetylene Welding. The gas should be lit using a suitable spark-lighter only, and that too, held at the right angles to the nozzle. How to properly light, adjust and shut down an oxy–acetylene torch Harris Products Group. An Oxy-Acetylene outfit is portable, less expensive and more versatile than a electric welding … They are ignited and burned at the nozzle of the torch. Therefore, you need to be extremely careful when starting your welding process. It is used for welding nickel, Monel metal, high-carbon steel, and a number of non-ferrous metals. Oxy-Acetylene Welding 101 Print Article Welding is a fundamental skill needed for many truck modifications and repairs. You should make sure that you do not keep the filler rod dipped into the pool continuously as it would act as a hindrance to thorough heating and keep the heat from the flame to reach the lower parts of the weld, and this might result in an imperfect fusion. Neutral Flame: Pressure oxygen and acetylene the same. Then, heat these touching edges with a flame till they melt and fuse. The difficult problem is between Nitrogen and Oxygen. It also consumes lesser gas and filler rod; hence it is cost-effective. The supply of acetylene gas to the blowpipe should be adjusted up to the point the flame stops to smoke. Now you know, what is Oxy-Acetylene Welding. This type of Oxy-Acetylene welding can be used on unbevelled steel plates that are 3mm in thickness when two welders are working on each side. 3. The first we must Clean the nozzle, because if the head of the nozzle dirty will cause flame bad. Open Regulator Oxygen and Acetylene, set until the pressure matching with what do you want or for acetylene 5 to 7 psi and Oxygen 7 to 10 psi. Because gases are stored in the bottle has a pressure greater than atmospheric pressure, it should be noted strength steel bottle against the pressures of work because they are causing friction and movement of gas in the bottle, it should be known types of gas, sensitive to shock or increase in temperature. The filler rod is preceded by the flame in the direction of the travel. For metal plates that are more than 4mm in thickness, the rightward technique is recommended. This layer of hard deposit is resistant to wear. This type of flame is used in most welding operations since the chemical effect of this flame on heated metal is the least. In this technique, the blowpipe is held in the right hand, which forms a weld that runs from right to left. Available in various cylinder sizes to suit your application needs. Purity can be achieved up to 99.5% and then used in steel tanks with a working pressure of 15-30 atm. Required fields are marked *. Your email address will not be published. The cylinder valve spindles should be opened on a single turn only. Suitable for light to medium duty cutting and welding. The combination of oxygen and acetylene produces a flame temperature over 6000 degrees Fahrenheit making it ideal for welding and cutting. Once you have a clear understanding of the equipment, you will know exactly how Oxy-Acetylene welding works. The oxy-acetylene flame is made by mixing oxygen and acetylene gases in a special welding torch or blowpipe, producing, when burned, a heat of 6,300 degrees, which is more than twice the melting temperature of the common metals. If you’re looking for Welding Sets, try our Oxy Acetylene Torch Kits here at Gas UK. 4. Oxyacetylene Welding (OAW) The oxyacetylene welding process uses a combination of oxygen and acetylene gas to provide a high temperature flame. Therefore, Oxyacetylene often called hydrocarbon gas consisting of carbon, lime, and water. Your email address will not be published. Neutral flame contains equal proportions of oxygen and acetylene gases. It is one of the most versatile types of welding. Oxy-acetylene flame may also be used for all types of brazing. It is … As you change the ratio of the two gases used, the action of the flame is adjusted. This way, the entire surface is gradually built up. While screws can hold metal pieces together, that’s not enough for these large structures. Use for production, fieldwork, and reparations. However, if the proportions are harnessed and modulated properly, the combustion of these two gases can produce heat and light. In addition to the purposes of welding (connecting), gas welding can also be used as preheating, brazing, cutting, and hard facing. (adsbygoogle = window.adsbygoogle || []).push({}); Oxy Acetylene Welding (OFW) Fundamentals Pressure Settings Chart Set Up And Kit. The gas welding tip attaches to the torch handle. It makes use of rods made of bronze alloy. If Oxy-Acetylene welding is done the right way, it can be used to weld all commercial metals. Different types of flames are used to weld different types of metals. Oxy-Acetylene welding involves joining two metals with the help of a flame produced by the combustion of oxygen and acetylene. The all-position rightward weld is a modification of the rightward technique. Keep in mind that pure Oxyacetylene is very susceptible to an explosion caused by pressure and temperature factors. and acetylene as welding gases dates back to the 1890’s. This means that the gasses, especially the oxygen, lasts longer. Oxy-Acetylene Welding Oxy-Acetylene, commonly known as Oxy-fuel, is one of the . Once the flame ceases to smoke, increase the oxygen supply slowly by means of the control valve. Oxy-acetylene 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 pressure regulator controls the pressure and the flow of gases. Carburizing Flame: For this type, we use more acetylene than oxygen. … There should be no leakage in the hoses as these are the pipes through which the gas is transported to the torch. This flame, while being of intense heat, is of very small size. The torch will be re-ignited instantly. The oxy-acetylene welding process combines oxygen and acetylene gas to provide a high temperature flame for welding. Yes, aluminum can be welded with Oxy-Acetylene. The base metal, in this case, is pre-heated until the point it begins to sweat. Oxy-Acetylene or Oxygen Acetylene welding is a type of welding that relies on the combustion of oxygen and acetylene gases, hence often referred to as gas welding. As a welder, you must know how to use oxy-acetylene torch to upgrade your skill in welding. For welding or cutting, using Oxy-fuel is not only a common method to apply in a workshop but more than it. Since steel melts at about 1,500℃, the mixture of oxygen and acetylene is the only gas combination that generates enough heat to melt steel. This equipment is super easy to use and minimizes the welding cost dramatically. This is when you’ll know that your blowpipe is correctly adjusted and is ready to be used to Oxy-Acetylene weld. In case there is a leak around the spindle, it will be revealed by a hissing sound or a smell. Oxy-Acetylene is a volatile mixture of pure oxygen gas and acetylene gas. Carburizing flame use application to soldering, silver welding and braze welding. Muller Media LLC is compensated for referring traffic and business to these companies. 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. It is one of the most versatile types of welding. $ 250.00 SGD +Tax Oxy-Acetylene or Oxygen Acetylene welding is a type of welding that relies on the combustion of oxygen and acetylene gases, hence often referred to as gas welding. When mixed in the right proportions a hot flame is produced with a temperature of about 3,500℃. We also know this regulator as a pressure-reducing regulator. The final flame should have a sharply defined, white-colored inner cone with as little trace of acetylene haze as possible. This temperature is hot enough to melt all types of commercial metals. Today, oxy-acetylene welding is employed for high strength steels. The cast iron in common use is known as “gray;” it is quite soft, easily machined and has a lower melting point than wrought iron or steel. What these Flashback Arrestors do is that they prevent the flames that have been generated by a flashback from reaching the gas cylinders. Every hose has a check valve that offers automatic safeguarding by incorporating a non-return valve. Oxygen Acetylene Welding (OAW) Process and Equipment: Oxy Acetylene Welding Set Up and Pressure Settings Chart : Shielded Metal Arc Welding Machine Parts And Process. The filler rod is held in place such that it is in front of the nozzle. The mixture can be explosive, depending upon what percentage of oxygen is involved. This site is owned and operated by Muller Media LLC. ESAB Turbo Torch kit. You should never use liquid igniters as they can be extremely dangerous. The nozzle is moved in slightly side-to-side or circular motions to ensure consistent heating and achieve an even fusion. We supply a range of acetylene gases for oxy-fuel welding, cutting and heating. Note Acetylene is supplied in cylinders under a pressure of about 15 bar but welding is carried out with torch gas pressures typically up to 2 bar. It should never be exposed to knocks or sudden surges in pressure that are a result of the rapid opening of the gas cylinder valve. Proper care of oxy-acetylene cutting and welding equipment. However, has it ever crossed your mind how metals are joined together to form such marvelous structures? These mighty metallic structures are heavy and solid. Save my name, email, and website in this browser for the next time I comment. The V-angle is smaller, and there is less distortion. The Oxy-Acetylene welding equipment consists of oxygen and acetylene gas cylinders, pressure regulators, hoses, Flame Arrestors, welding torches, and economizers. Oxy … 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. This flame is not used to weld regular steel. Sir I can review sir… And I can study it.. To re-light the torch, all you have to do is remove the welding torch from the lever rod and pass it over the pilot light. It cannot be used to weld steel as it will oxidize it. When mixed together in correct proportions within a hand-held torch or blowpipe, a relatively hot flame is produced with a temperature of about 3,200 deg.C. Usually, we use this flame for cutting materials from carbon steel. In fact, the oxy-acetylene flame burns at 6000 ° F, and is the only gas flame that is hot enough to melt all commercial metals. It features an extreme heat function that is controllable. In parallel, you should check the bullnose present on the pressure regulator. Each gas is controlled by the valve present on the torch. It allows the welder to get an even build-up and a very uniform penetration bead. Pressure regulators should be changed immediately in case of damage. Lighting, adjusting and shutting down an oxygen-acetylene torch is easy – especially when following the proper procedures. Safety: The efficiency of acetylene when used with oxygen is very high. For this technique, it is necessary that the flame is in a neutral condition. Oxyacetylene welding disability as follows: See: Shielded Metal Arc Welding Machine Parts. To produce good quality, welding conditions should be running properly and the techniques and materials used must meet the standards. We've worked hard to produce Gas Welding Kits to suit as many applications, and pockets, as possible. This technique has widespread applications in building up wear-resistant surfaces on dyes, well-boring drills, punches, knives, picks, valve seals, and excavating and crushing machinery. What Is Oxy-Acetylene Welding? Then, by means of electrolysis, a mixture of air and water are separated by liquid oxygen. This will ensure that any air present in the hoses is purged before the welding process is started. Any guide on how to Oxy-Acetylene weld will be incomplete without highlighting the hazards of Oxy-Acetylene welding. The following safety precautions must be ensured during the entire welding process. There are numerous types of welding, of which Oxy-Acetylene welding is one of the most famed welding processes. The filler rod is moved forward in a circular motion, with the blowpipe moving steadily along the seam of the weld. With the right Gas Welding Equipment you can Gas Weld, Braze, Silver Solder, Heat and Oxygen + Acetylene or Oxygen + Propane Cut. Cutting of metals by means of flame has many advantages over other methods, specially when the metal is of irregular shape. Oxy-Acetylene Welding is the welding process of heating two pieces of metal to melting point, bringing the parts together and while still in a molten stage hammered together to form a joint. Welding joins different metals together by heating them at the junction up till the point they melt and fuse together. Gas Welding is probably the oldest of the Welding processes and Gas Welding Equipment is arguably the most versatile. Oxygen + Gasex (Mapp) is also potentially free from cylinder rental and can be used for lightweight Gas Welding, however, as the canisters are small and disposable, long term costs can mount if you use your Gas Welding Kit frequently. Oxyacetylene welding, commonly referred to as gas welding, is a process which relies on combustion of oxygen and acetylene. Welding Headquarters is the site where I share everything I've learned. Oxyacetylene Welding (OAW) • by WAQAS AHMED 2. I'm Pierre Young. This type can we use for steel. Gas welding poses a significant risk of accidents. The third open valve in the torch, first acetylene after that you can open oxygen valve.

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