Classification of broken wire of pure molybdenum plate
The high frequency pulse negative wave of pure molybdenum plate is too large, and the negative wave of pulse directly corrodes the molybdenum wire, which increases the loss of the wire, reduces the service life of the wire, and causes the wire to be broken in a short time.
Improper pulse width and pulse distance selection, in the processing of larger thickness of the workpiece, the pulse width through large, will make the discharge gap in the phenomenon of concentrated discharge points, burn molybdenum wire; Pulse distance is too small, make the electrical corrosion in the gap cannot be discharged adequately, eliminate ionization is not sufficient, also break wire easily. Pure molybdenum plate at this time can be clearly seen on the molybdenum wire burn marks (namely dark freckles).Broken wires associated with table movement.
The cutting precision of the workpiece is guaranteed by the screw, and the clearance between the screw and the nut is eliminated by the spring. If pure molybdenum plate screw lubrication is poor or the spring force is insufficient, it will cause the work table to move at an uneven speed. In this case, cutting, high-frequency current will occur frequent short circuit, if not timely troubleshooting, is bound to cause broken wire.
