explain the advantage and application of oxy-acetylene welding
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Answer:
Advantages of Oxy-Acetylene Welding : It's easy to learn. The equipment is cheaper than most other types of welding rigs (MIG/TIG welding) The equipment is more portable than most other types of welding rigs (MIG/TIG welding)
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Answer:
Advantages of gas welding
1. There is no need sophisticated and expensive equipment and an additional source of electricity. Thus, welding is possible even in the open field. Incidentally, all pipelines created between 1926 and 1935, it was welded by gas welding. This feature also allows you to carry out repair works in various parts of the buildings, areas and regions.
2. It can be very widely varied power flame welding metals with different melting points.
3. Iron, copper, lead and brass better than welded using gas welding.
4. With the right choice of the brand of the filler wire, the power and the type of fire, produce high-quality welds. When confirmed high quality of welds, welding gazoatsetilenovoy trusted in the most responsible production sites.
5. Slow heating and cooling of the welded surfaces.
6. Welder can easily vary the temperature of the flame. It turns out that when you change the angle of the flame to the surface to be welded and the temperature changes. If the flame is located on a normal, its maximum temperature.
7. The strength obtained when gas welding seams may be greater than in arc welding using low-quality electrodes.
8. Gas welding allows welding, cutting and tempering metals.
The figures show the cylinders used for gas welding.
1. Large heating zone. Nearby to the welding thermally unstable elements may be damaged due to high heating zones.Disadvantages of gas welding
2. With a thickness falling productivity. Welding thickness greater than 5 mm is disadvantageous. In these cases, apply arc welding.
3. When connecting overlapping metal thickness greater than 3 mm to apply gas welding are not recommended because there is tension in the metal, which can lead to deformation and destruction of adhesions.
4. When gas welding are fairly dangerous substances with atmospheric oxygen yielding explosive mixture (hydrogen, acetylene, etc.) Gas cylinders used in welding should be removed as much as possible from organic substances (fats, oils, hydrocarbons). Ignoring the safety instructions can lead to fires and explosions.
5. Slow heating and cooling of the welded surfaces.
6. Almost defies mechanization, unlike arc welding.
7. When gas welding it is impossible to dope the deposited metal. At the same time, the quality of welds produced arc welding is very dependent on the applied electrodes and a special wash.
8. High carbon steel is not recommended to be welded using gas welding.
Explanation: