INJECTION MOLD AND INJECTION MOLDING METHOD

摘要

PURPOSE:To reduce the extra number of man-hours for a pressurized gas passage and obtain a molded piece having excellently finished appearance by making a passage and a gas gate extended from a melting resin runner and a pressurized gas injection opening communicate with each other and injecting a pressurized gas from the gas gate. CONSTITUTION:A gas passage 6 extending from a pressurized gas injection opening 5a provided in a movable mold 2 and a gas gate 6a in a direction almost rectangular to the tip of the gas passage 6 communicate with a runner 4b for melting resin. An angle to be generated in between the gas gate 6a and a flowing direction of the melting resin of the runner 4b forms an acute inclination.