To provide a molding process of a two-color molding which can prevent bad molding such as a sink mark or resin flowing even when the molding process of the two-color molding with thin thickness and different thicknesses is executed.
In the molding process of the two-color molding which includes the step of mold clamping a movable die and a primary fixed die, the step of injecting resin in the cavity formed between both the dies to thereby mold a molding article 5 having sidewalls 5a, the step of clamping the dies by moving the movable die opened from the primary fixed die after the molding, the step of injecting the resin in the second cavity formed between both the dies, and the step of forming a formed article 6 in the state that its molding article 5 is partly lying on the molding article 5 to integrate both; the molding process of the two-color molding further includes the step of forming the formed article 6 extended along the upper surface of the molding article 5 and projected from the sidewall 5a lying on the molding article 5 as a thick layer 6b thicker than the thickness of the formed article 6, and the step of overlapping the thick layer 6b on the part or the entirety of the thickness of the sidewalls 5a.
SAGAYAMA YOSUKE
HAMANO KOJI
HAMAOKA KOICHI
MATSUI TAKASHI
| JPH01250901A | 1989-10-05 | |||
| JPS63199818A | 1988-08-18 | |||
| JPH06219231A | 1994-08-09 | |||
| JP2008290383A | 2008-12-04 |
Tadashi Sugakawa
Osamu Futakuchi
Hiroaki Ito