|
oPetrol Oxy-gasoline |
Acetylene-oxygen |
Flame Temperature
|
2870 |
3000 |
Cutting performance |
Preheating time |
Longer for thick sheets |
Quick |
Cutting speed |
Cuts thick sheets quicker than acetylene |
100-800mm/minute |
Oxygen consumption |
1.2---1.5 Cube/KG |
1.2---1.4 Cube/KG |
Slag |
Very little and easy to remove |
Much, hard to remove slag |
Gap quality |
Smooth, with a small area affected by heat |
With a big area affected by heat |
Possible hole depth |
<250mm |
<60--80mm |
Stack cutting |
15 stacked layers of 10mm sheets can be cut at one time |
Very difficult |
Cutting under water |
Possible |
Difficult |
Safety |
Back-flash |
No back flash when the volume density of gasoline in oxygen is in the flammability range of 1.7--6%
No need for back-flash arrestor |
easy back flash when the volume density of acetylene in oxygen is in the flammability range of 2.8--93%
need back-flash arrestor
|
Fuel tank |
The tank is filled with military blast-proof material. It is safe when caught in fire. |
Hazardous, explosive when caught in fire |
Cost |
By using gasoline instead of acetylene for cutting, the cost can be reduced by up to $1.50 per hour of use. |
Cost is 7-10 times higher than gasoline cutting |
Pollution |
No |
High contamination |
Harmful to operators |
No |
|
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