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CNC cutting machine steel often out of the question

Date：2013-11-07 Author：zhaoyang Hits：1099

CNC steel plate cutting machine , cutting impermeable steel , plasma arc weak, the arc is not perpendicular to the scene view discovery arc, arc normal, but weak , plasma arc , and the solitary light tilted to one side , not vertically . Resulting in insufficient energy can not penetrate steel . Check the supply voltage , air pressure is within the requirements . The plasma torch Remove, inspect internal torch cooling water pressure, air pressure. Coolant pressure, flow normal, but the air flow was significantly smaller . The plasma torch cable tracheal ends removed, with clean air to clean , still can not meet the requirements, CNC cutting machine trachea with a temporary replacement , pressure has improved significantly. On the vortex ring inside the torch , cutting nozzle and other wearing parts replacement, try machine everything is normal , the machine can be used temporarily . Other parts were replaced after purchase , the fault is completely ruled out.

Plasma power shows " insufficient flow " alarm turn on plasma power, check the plasma pump motor , the motor is operating normally. But the temperature is high , the test voltage, current is normal. Remove the output of the pump , use clean longer pipes, water pressure test and found that pressure was significantly smaller . Disassemble the motor and pump coupling , the coupling between the two found badly worn , replace the coupling after Ran test pressure is still not meet the requirements , suspected serious internal wear pumps , a leak , causing the output pressure is reduced. Replace the water pump , the pressure is normal.

Plasma is due to high pressure pumps , coupled with limited space , causing the motor for prolonged operation. To protect the motors and pumps, the plasma power shell on the installation of a cooling fan, forced cooling . Run so far, in good condition.

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