What is the working principle of oxy fuel welding?
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 does a oxy fuel torch do?
Oxy-fuel torches are normally used for cutting only ferrous, or iron-containing, metals, and for the most part are not used for cutting cast iron, aluminum or stainless steel. With oxy-fuel cutting, an oxygen/fuel gas flame preheats the steel to its ignition temperature.
What are the major components of oxyacetylene torch?
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.
How hot is oxy-acetylene torch?
3000 degrees C
The oxyacetylene process produces a high temperature flame, over 3000 degrees C, by the combustion of pure oxygen and acetylene.
What is the formula of oxy-acetylene?
Acetylene
| PubChem CID | 6326 |
|---|---|
| Chemical Safety | Laboratory Chemical Safety Summary (LCSS) Datasheet |
| Molecular Formula | C2H2 |
| Synonyms | ACETYLENE Ethyne Acetylen Narcylen Vinylene More… |
| Molecular Weight | 26.04 |
What comes first acetylene or oxygen?
We recommend closing the oxygen valve first whenever turning off an oxy-fuel torch system especially when Acetylene is fuel.
What is the ratio of oxygen and acetylene in gas cutting?
Natural Gas
| Table : Fuel Gas Characteristics | ||
| Fuel Gas | Maximum Flame Temperature °C | Oxygen to fuel gas Ratio (vol) |
|---|---|---|
| Acetylene | 3,160 | 1.2:1 |
| Propane | 2,828 | 4.3:1 |
| MAPP | 2,976 | 3.3:1 |
What are the four common oxy-fuel processes?
Combustion also continues in the secondary or outer zone of the flame with oxygen being supplied from the air. The five most commonly used fuel gases are acetylene, propane, MAPP (methylacetylene-propadiene), propylene and natural gas. The properties of the gases are given in the Table.
Why Oxy-Acetylene is used in welding purposes?
Acetylene produces a flame temperature of ~3100 degree Celsius along with oxygen. This high flame temperature makes acetylene a suitable choice for gas welding steel. 2. Welding: When burned in oxygen, acetylene produces a reducing zone, which easily cleans the metal surface.
Can a welder use an oxy acetylene torch?
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. This equipment is super easy to use and minimizes the welding cost dramatically.
What do you need to know about oxy fuel welding?
Oxy-fuel (Oxyacetylene) Welding – A Guide to Gas Welding 1 Process features. Oxyacetylene welding, commonly referred to as gas welding, is a process which relies on combustion of oxygen and acetylene. 2 Equipment. Oxyacetylene equipment is portable and easy to use. 3 Operating characteristics.
How big is an oxy fuel cutting torch?
Mechanized oxy-fuel machine torches, which are normally either 10” or 18” in length, are typically rated for cutting up to 12” to 15”. Some specialty machine torches are rated for cutting up to 30” and more. Cutting thick plate does not require high oxygen pressures.
How does the oxy fuel cutting process work?
Oxy-fuel cutting torches use a copper tip with a series of holes arranged in a circle to deliver a mixture of a fuel gas and oxygen to create a pre-heat flame. Preheat flame temperatures will range from 4,440° to 6,000° F depending upon the fuel gas used and the adjusted ratio of oxygen to fuel gas.