Juliarobertspolkadotsdress

gas welding

To begin, explain what is acetylene.

Acetylene is the simplest alkyne. It is a highly flammable gas, slightly lighter than air, colorless.

To obtain a simple form, which can occur in a laboratory, using the hydrolysis of calcium carbide (CaC2).

uses acetylene

from since the last century since its fixity and clarity of light are desirable, in addition to its heat capacity, ready availability and low cost.

was used by generators, mining lamps, lighting, marine projects and filmmakers.

oxyacetylene welding can be used with brass, aluminum, copper, steel, magnesium alloys and castings. It is produced by the combustion of two gases, acetylene and oxygen. These gases, contained in steel cylinders, mixed at the torch.

Before welding, review the safety of the environment to decrease the risk of accidents because the temperature can reach this process is 3000 ° C. Similarly, it is essential to have adequate body protection: leather apron, gauntlets, hearing protector filter masks, safety shoes and leather leggings against incandescent material.

flame cutting equipment used in welding is composed of steel cylinders, one containing red acetylene dissolved in acetone, and one black, containing oxygen, control valves and pressure gauge, indicating filling pressure of the substances, a backflow valve that will prevent flashback, the hoses and torch.

The oxyacetylene flame is composed of two parts: the dart, which is a more intense color and plume located on the outside around the dart.

This flame can be regulated, for example, have a neutral flame, where oxygen is burned completely, can be used to weld steel and aluminum, carburizing flame, which has an excess of acetylene used for welding materials ferrous oxidizing flame, which has excess oxygen, is used to solder brass and finally there is also the pure acetylene flame, which is of no use in welding, because it uses oxygen from the atmosphere.

oxyacetylene welding can take two forms: without input and contribution. The first one is a string in the material we welding, the second case, using a rod should be of the same material we are welding.

There are risks when welding, one of the most dangerous is the flashback. By this I mean that in some cases, when tools are not clean enough, misplaced or damaged, the oxyacetylene flame can reverse its direction. At first, it is not as dangerous as the flame can be extinguished and re-appear for the torch, but in other cases, the flame reaches the cylinder, thus causing a huge explosion.

Thus gas welding contributes to industry, however, to avoid the many contingencies is necessary to prevent and be alert for any eventuality because a disaster can occur at any time.