How to use the wind cutting gun?

Select the edge of the cutting piece, first heat the metal with preheating flame, when it is preheated to bright red, move the flame to the edge, and slowly open the oxygen valve for cutting. With the increase of oxygen flow, bright red iron slag will fly out from the back of the cutting piece, which proves that the workpiece has been cut through, and the cutting torch can start to move from right to left at a suitable speed according to the thickness of the workpiece.

After cutting, the moving speed of the cutting torch should be uniform, the distance between the cutting nozzle and the cutting piece should be controlled to be equal to the length of the flame core of 2 ~ 4 mm, and the cutting nozzle can be tilted back (i.e. to the cutting direction) by 20 ~ 30. In case of explosion and tempering during gas cutting, the oxygen cutting valve should be closed immediately, and then the preheating oxygen valve and acetylene valve should be closed in turn to suspend the gas cutting process. Remove the dirt in the passage with a needle. After normal treatment, re-gas cutting.

Extended data:

Precautions:

In the cutting process, due to the insufficient supply of oxygen and acetylene gas, the nozzle is blocked by slag or overheated, and tempering often occurs. At this time, the air supply should be turned off urgently. The correct sequence is to close the acetylene valve first, cut off the combustible gas source and then close the mixing valve. After the cause is found out, the ignition will continue to work after the treatment is completed.

Cleaning after gas cutting. After cutting to the end, close the cutting oxygen valve and lift the cutting torch at the same time. If it is no longer needed, close the acetylene valve first, and then close the mixed gas regulating valve. Then loosen the pressure adjusting screw of the pressure reducer and close the acetylene and oxygen cylinder valves. After the work, remove the cutting torch and pressure reducer, properly keep them, wind acetylene and oxygen hoses, and clean up the work site.

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