Full Auto Size Adjustment Machines 

When the cutting flame is too strong, the following problems will appear: ① Cut the edge volume field and stick granular droplets; ② The cutting surface is uneven and the roughness becomes worse; ③ Slag sticking at the lower edge of the incision. The following problems occur when the cutting flame is too weak ① The cutting speed slows down, and cutting interruption is easy to occur; ② Easy to backfire ③ The amount of drag increases. The preheating and cutting flame shall be determined according to the workpiece thickness, cutting nozzle type and quality requirements. The key points are as follows: ① The power of pre heating and cutting flame (b fast flow, oxygen flow) increases with the increase of steel plate thickness ② When cutting thick steel plates, the flame should be carbonization flame to avoid the collapse of banyan and make the outer flame longer; ③ When cutting a steel plate with a thickness of less than 20mm with a protective loose cutting nozzle and an oxygen curta…

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