Spray method of permanent mold casting powdery mold coating agen

Details Spray method of permanent mold casting powdery mold coating agen Spray method of permanent mold casting powdery mold coating agen

1993-10-07

1995-01-31

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164267, B05D 106

Patent

active

053851960

ABSTRACT:
In a spray method for spraying and applying a powdery mold coating agent onto both inside surfaces of a movable metal mold and a stationary metal mold for a permanent mold casting device, a spray method of permanent mold casting powdery mold coating agent in which a spray head provided with an electrostatic spray gun is fit to a feeding port so as to shut it tightly and a suction head connected to a suction pump is fit to a riser port so as to shut it tightly under a state where the movable metal mold and the stationary metal mold are closed. An inside of cavity is sucked by the suction pump through the riser port so as to produce a pressure difference between inside and outside of the cavity, and a powdery mold coating agent supplied from a powdery mold coating agent feeding device to the electrostatic spray gun is discharged from the electrostatic spray gun by means of the above pressure difference so as to be electrostatically adsorbed onto the inside surfaces of the foregoing both metal molds.

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