Method of die casting

Details Method of die casting Method of die casting

1984-07-20

1986-04-22

Godici, Nicholas P.

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164150, 164458, 164113, B22D 1732

Patent

active

045835799

ABSTRACT:
A method of die casting using a plunger tip of a reciprocal plunger for forcibly injecting the molten metal supplied to the inner space of a sleeve into the mold cavity through a spool bush connected therebetween. The temperature of at least a portion of at least one of the plunger tip, the sleeve, and the spool bush is measured. Retracting of the plunger is commenced on the basis of the measured temperature after each shot of die casting. The measured temperatures of the plunger tip, the sleeve, and/or the spool bush is utilized for calculating the clearance at the peripheral surface of the plunger tip, and the retracting of the plunger is commenced at the time the clearance is calculated to reach a predetermined set value of clearance.

REFERENCES:
patent: 3583467 (1971-06-01), Bennett et al.
patent: 3931847 (1976-01-01), Terkelsen
patent: 4252174 (1981-02-01), Miki et al.
patent: 4493362 (1985-01-01), Moore et al.

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