What is oxy acetylene

The rightward technique finds application on plate thicknesses above 5mm for welding in the flat and horizontal-vertical position. The all-positional rightward method is a modification of the rightward technique and is ideally suited for welding steel plate and in particular pipework where positional welding, vertical and overhead has to be carried out.

The rightward and all- positional rightward techniques enable the welder to obtain a uniform penetration bead with added control over the molten weldpool and weld metal. Moreover, the welder has a clear view of the weldpool and can work in complete freedom of movement. These techniques are very highly skilled and are less frequently used than the conventional leftward technique.

For more information, please contact us. Support for SMEs. Software Products. Go to Technical knowledge Search. Login Login. Members' Portal. Process features Oxyacetylene welding, commonly referred to as gas welding, is a process which relies on combustion of oxygen and acetylene. This is where welding comes into play. Welding joins different metals together by heating them at the junction up till the point they melt and fuse together.

There are numerous types of welding, of which Oxy-Acetylene welding is one of the most famed welding processes. Oxy-Acetylene is a volatile mixture of pure oxygen gas and acetylene gas. The two gases are not chemically combined but rather a mixture which is prepared only for a specific purpose — superheating. The mixture can be explosive, depending upon what percentage of oxygen is involved. However, if the proportions are harnessed and modulated properly, the combustion of these two gases can produce heat and light.

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.

It is one of the most versatile types of welding. Oxy-Acetylene welding requires a specific skill set and thorough practice, coupled with which it can be used to weld virtually any metal! 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, degrees. This temperature is hot enough to melt all types of commercial metals. As you change the ratio of the two gases used, the action of the flame is adjusted.

Oxy-Acetylene welding works on a simple concept, that is, bring two pieces of metals together such that their edges are touching. Then, heat these touching edges with a flame till they melt and fuse. The Oxy-Acetylene welding equipment consists of oxygen and acetylene gas cylinders, pressure regulators, hoses, Flame Arrestors, welding torches, and economizers.

Once you have a clear understanding of the equipment, you will know exactly how Oxy-Acetylene welding works. The primary components of Oxy-Acetylene welding equipment are separate gas cylinders for oxygen and acetylene. The gas cylinders should be sealed to perfection, with no leaks at all. In case there is a leak around the spindle, it will be revealed by a hissing sound or a smell.

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. The color of the oxygen gas cylinder is black with a right-hand thread, and the color of an acetylene gas cylinder is maroon with a left-hand thread.

Pressure regulators can be considered to be precision instruments. The pressure regulator controls the pressure and the flow of gases. 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. For this very reason, you should always open the gas cylinder valve smoothly and slowly with the help of the Spindle Key. In parallel, you should check the bullnose present on the pressure regulator.

If there is any damage to it, the gas will start to leak. Pressure regulators should be changed immediately in case of damage. Moreover, a pressure regulator should only be used with the gas it has been designed for.

The hoses should be well-fitted and attached to the cylinder with permanent clips. They should not be exposed to heat, oil, grease, sparks, slag, traffic, or sharp edges of metal. There should be no leakage in the hoses as these are the pipes through which the gas is transported to the torch. Every hose has a check valve that offers automatic safeguarding by incorporating a non-return valve. There are specially-designed devices called Flashback Arrestors that are fitted between the regulators and hoses as a safety measure.

What these Flashback Arrestors do is that they prevent the flames that have been generated by a flashback from reaching the gas cylinders. After the pressure of the gases has been regulated and controlled, they are fed to the welding torch through the respective hoses. Each gas is controlled by the valve present on the torch. It is the welding or cutting torch where the two gases, oxygen, and acetylene finally mix.

They are ignited and burned at the nozzle of the torch. It is a device that saves acetylene and oxygen from being wasted when the welding or cutting torch is not in use. When the welding torch is resting, the flame is extinguished automatically. 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. The torch will be re-ignited instantly. Gas welding poses a significant risk of accidents.

Therefore, you need to be extremely careful when starting your welding process. Start by opening the valves of oxygen and acetylene gas cylinders gradually, with the help of cylinder keys. Opening the valves suddenly can not only damage the regulators but might also lead to an accident. The cylinder valve spindles should be opened on a single turn only.

Gas flows through flexible hoses, with the welder controlling the flow via the torch. The filler rod is then melted with the base material. However, melting two pieces of metals is also possible without the need of the filler rod.

Oxy-fuel welding uses a flame as the heat source, reaching temperatures up to 6, degrees Fahrenheit. Arc welding uses electricity as a heat source, reaching temperatures of roughly 10, F.

In the early days of welding, oxy-fuel welding was used to weld thick plates. Some arc welding processes, such as GTAW, are replacing the oxy-fuel welding process on thin metals. Like all types of welding, safety is very important with oxy-acetylene welding. Juan says aspiring welders should learn about safe oxy-fuel setup and system testing procedures before welding. The UTI Welding program covers both oxy-acetylene welding and arc welding techniques.

Students graduate prepared for entry-level welding careers in construction, structural, pipe and fabrication industries. They need to endure many hours standing or crouching and be willing to wear goggles and other safety gear. You probably have an idea what a welder does, but do you know what a career in welding looks like?

This will guide help. Welding can be a dangerous occupation without proper safety guidelines in place. Click here to learn 11 welding safety tips to follow. This rate excludes graduates not available for employment because of continuing education, military service, health, incarceration, death or international student status. The rate includes graduates who completed manufacturer-specific advanced training programs and those employed in positions that were obtained before or during their UTI education, where the primary job duties after graduation align with the educational and training objectives of the program.

UTI is an educational institution and cannot guarantee employment or salary. Individual circumstances and wages depend on personal credentials and economic factors. Work experience, industry certifications, the location of the employer and their compensation programs affect wages. Awards vary due to specific conditions, criteria and state. Bureau of Labor Statistics, Employment Projections , www. Job openings include openings due to growth and net replacements. Special conditions may apply.

Talk to potential employers to learn more about the programs available in your area. Programs available at select locations. Department of Veterans Affairs VA. More information about education benefits offered by VA is available at the official U. Entry-level salaries may be lower.

UTI programs prepare graduates for careers in industries using the provided training, primarily as automotive technicians. Some UTI graduates get jobs within their field of study in positions other than as a technician, such as service writer, smog inspector and parts manager.

North Carolina salary information: The U. The Bureau of Labor Statistics does not publish entry-level salary data. Bureau of Labor Statistics, U. Automotive Service Technicians and Mechanics, viewed June 2, UTI programs prepare graduates for careers in industries using the provided training, primarily as welding technicians.

Some UTI graduates get jobs within their field of study in positions other than as a technician, such as certified inspector and quality control. Welders, Cutters, Solderers, and Brazers, viewed June 2, UTI programs prepare graduates for careers in industries using the provided training, primarily as collision repair technicians.

Some UTI graduates get jobs within their field of study in positions other than as a technician, such as appraiser, estimator and inspector. Automotive Body and Related Repairers, viewed June 2, UTI programs prepare graduates for careers in industries using the provided training, primarily as diesel technicians.

Some UTI graduates get jobs within their field of study in positions other than as a diesel truck technician, such as maintenance technician, locomotive technician and marine diesel technician. MMI is an educational institution and cannot guarantee employment or salary.