发明授权
US09186634B2 Kneading apparatus, method for producing thermoplastic resin molded product, and foam injection molding method 有权
捏合装置,热塑性树脂成型体的制造方法以及发泡注塑法

Kneading apparatus, method for producing thermoplastic resin molded product, and foam injection molding method
摘要:
A kneading apparatus for a thermoplastic resin, includes: a plasticizing cylinder which has a high pressure kneading zone and a pressure reduction zone; a screw in the plasticizing cylinder; a downstream side seal mechanism which shuts off communication between the high pressure kneading zone and the pressure reduction zone; and a pressure reduction zone pressure adjusting mechanism which is connected to the pressure reduction zone and which controls a pressure of the pressure reduction zone so that the pressure is not less than an atmospheric pressure and the pressure is not more than a maximum pressure of the high pressure kneading zone that is achieved when kneading a molten resin with a pressurized fluid, when the downstream side seal mechanism shuts off the communication between the high pressure kneading zone and the pressure reduction zone.
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