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    METHOD FOR PRODUCING FOAMED MOLDED PRODUCT
    2.
    发明申请
    METHOD FOR PRODUCING FOAMED MOLDED PRODUCT 有权
    生产泡沫塑料制品的方法

    公开(公告)号：US20150336307A1

    公开(公告)日：2015-11-26

    申请号：US14819100

    申请日：2015-08-05

    申请人： HITACHI MAXELL, LTD.

    发明人： Satoshi YAMAMOTO ,  Atsushi YUSA ,  Hironori OTA ,  Tetsuya ANO ,  Hideto GOTO

    IPC分类号： B29C44/10

    CPC分类号： B29C44/10 ,  B29C44/3446 ,  B29C44/422 ,  B29C44/60 ,  B29C45/18 ,  B29C45/63 ,  B29C2045/0079 ,  B29C2045/1722 ,  B29C2045/185 ,  B29L2031/00

    摘要： A method for producing a foamed molded product includes: using a molding apparatus including a plasticizing cylinder having a high pressure kneading zone and a pressure reduction zone; and a screw; controlling a pressure of the pressure reduction zone to be a first pressure in a state that communication between the high pressure kneading zone and the pressure reduction zone is shut off, the first pressure being not less than an atmospheric pressure and not more than a maximum pressure of the high pressure kneading zone which is reached in a case that a molten resin is brought in contact and kneaded with a physical foaming agent; controlling back pressure of the screw to be a second pressure which is not less than the first pressure; and measuring a predetermined amount of the molten resin from which the gasified physical foaming agent has been separated.

    摘要翻译： 发泡成型体的制造方法包括：使用包括具有高压捏合区和减压区的增塑筒的成型装置; 和螺丝; 在所述高压捏合区与所述减压区之间的连通被切断的状态下将所述减压区的压力控制为第一压力，所述第一压力不小于大气压并且不大于最大压力 在熔融树脂与物理发泡剂接触和混合的情况下达到的高压捏合区; 将所述螺杆的背压控制为不小于所述第一压力的第二压力; 并测量已经分离了气化的物理发泡剂的预定量的熔融树脂。