What are the 5 major components to an oxy-acetylene system?
The basic oxyacetylene torch comprises:
- torch body (or handle)
- two separate gas tubes (through the handle connected to the hoses)
- separate control valves.
- mixer chamber.
- flame tube.
- welding tip.
What are the four basic requirements of oxy-acetylene cutting?
Process fundamentals
- the ignition temperature of the material must be lower than its melting point otherwise the material would melt and flow away before cutting could take place.
- the oxide melting point must be lower than that of the surrounding material so that it can be mechanically blown away by the oxygen jet.
What is the 1/7th rule for acetylene?
The 1/7 rule simply means it is unsafe to flow more than 1/7th of an acetylene cylinder’s total contents.
What is the formula of oxy-acetylene?
Acetylene
| PubChem CID | 6326 |
|---|---|
| Molecular Formula | C2H2 |
| Synonyms | ACETYLENE Ethyne Acetylen Narcylen Vinylene More… |
| Molecular Weight | 26.04 |
| Dates | Modify 2022-04-29 Create 2004-09-16 |
What is the max pressure for acetylene?
The working pressure of acetylene equipment is critical: Acetylene pressure must not exceed 0.62 bar (9psi) unless equipment has been specifically designed for it.
What is the ratio of oxygen to acetylene supplied at the torch tip?
The neutral flame has a one-to-one ratio of acetylene and oxygen. It obtains additional oxygen from the air and provides complete combustion. It is generally preferred for welding.
What is the ratio of oxygen and acetylene in gas cutting?
For the maximum flame temperature in oxygen, the ratio of the volume of oxygen to fuel gas are 1,2 to 1 for acetylene and 4.3 to 1 for propane.
What color hose is used for oxygen?
A blue color indicates the hose as suitable for use with oxygen, and a red hose is used for acetylene and other fuel gases.
At what pressure does acetylene ignite?
Acetylene will not explode under low pressure at normal temperatures. However, it becomes unstable and spontaneously combustible when compressed to a pressure over 15 psi. Beyond 29.4 psi, it becomes self explosive, and a slight shock may cause it to explode even in the absence of air or oxygen.
What is the temperature of an oxy acetylene flame?
about 3,200 deg.
Oxyacetylene welding, commonly referred to as gas welding, is a process which relies on combustion of oxygen and acetylene. 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.
What are the 2 stages of combustion in an oxyacetylene flame?
The reaction does not go to completion in direct manner as indicated, but occurs in two stages—primary and secondary combustion. These two reactions are: In the neutral flame, two and half volumes of oxygen are required for the combustion of one volume of acetylene gas.