Dissolved Acetylene
Features :-
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Benefits :
- Oxygen and acetylene together produce a flame temperature of approximately 3150°C
- The oxy-acetylene flame gives very good localised heating with a minimum of wasted heat
- In cutting, oxy-acetylene gives the fastest preheating and piercing times of any fuel gas combination
- In oxy-acetylene cutting processes, improved cut quality, higher cutting speed, faster cut initiation time and reduced oxygen use are achieved
- When used with either oxygen or air, acetylene can produce a thin layer of black carbon particles. This can prevent components sticking in their moulds
- Unused gas will not collect in low-lying areas, ducts and drains causing a potential hazard
- Acetylene is stored in specially-designed cylinders to prevent decomposition
- The flame has a low moisture content making it a good choice for many critical heating applications
Applications and Uses :-
- Cutting
- Flame heating
- Flame gouging
- Gas welding. The only fuel gas which can be used to weld steel
- Flame hardening. An oxy-acetylene flame can be used where the hardened surface of carbon steel components is either in situ as a remedial process or on components too large to fit in a furnace
- Flame cleaning. A wide oxy-acetylene flame is held very close to a steel surface to be cleaned
- Flame straightening where the precise and efficient flame properties are used to remove distortion in plate material
- Thermal spraying of various metals and ceramics. The material to be sprayed is fed through the flame
- Spot-heating applications
- Brazing
- Texturing
- Profile-cutting
- Branding wooden pallets
- Wood-ageing
- Glass and metal castings
- Mould release and other anti-stick applications
- The only fuel gas recommended for use in underground working conditions
Please Note :- In any confined spaces, extraction devices should be used to remove any potentially dangerous by-products.
Material compatibility :-
Acetylene can ignite and burn instantly from a spark or piece of hot metal. It can form explosive acetylide compounds with some metals, most notably copper, silver and mercury.
Please Note :- Copper alloys containing less than 65% copper and silver solder containing less than 43% silver are considered safe.
Hoses used with acetylene are coloured red and are designed to resist acetone. For this reason other fuel gas hoses must not be used.
Hazards :-
- Care must be taken when using acetylene as it is an asphyxiant
- Acetylene is highly reactive. It is dissolved in acetone and contained within a porous mass inside the cylinder
- Acetylene can react over time with some metals to form explosive acetylides
- Acetylene is slightly lighter than air and will collect at ceiling level