According to the present invention, between the mold-clamping process S1 in which the mold 1 is closed and the injection-pressure increase (solidifying) process S3, the gate-melting process for heating the hot runner 21 to melt the plug (metallic material) of the gate 27, the mold-lubricant coating process for spraying the lubricant onto the wall surface of the cavity 10, and the material-metering process are simultaneously carried out in parallel to each other. Thus, the molding cycle time can be reduced to a great extent.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a divisional of U.S. patent application Ser. No. 10/229,871 filed on Aug. 28, 2002 now U.S. Pat No. 6,938,669. This application claims the benefit of JP 2001-262007, filed Aug. 30, 2001. The disclosure(s) of the above application(s) is (are) incorporated herein by reference.
