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    METHOD FOR PRODUCING FOAMED MOLDED PRODUCT
    4.
    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。

    Expansion Injection Molding Process And Mold For Expansion Injection Molding
    7.
    发明申请
    Expansion Injection Molding Process And Mold For Expansion Injection Molding 有权
    膨胀注塑成型工艺和模具用于膨胀注塑成型

    公开(公告)号：US20090140447A1

    公开(公告)日：2009-06-04

    申请号：US11718945

    申请日：2005-11-08

    申请人： Tatsuji Kawamura ,  Akinori Nagano

    发明人： Tatsuji Kawamura ,  Akinori Nagano

    IPC分类号： B29C44/10 ,  B29C44/58

    CPC分类号： B29C45/56 ,  B29C44/0415 ,  B29C44/10 ,  B29C44/348 ,  B29C44/586 ,  B29C45/2608 ,  B29C2045/563

    摘要： To provide an expansion injection molding process, which is freed from the occurrence of swirl marks on the surface of a molded article and by which foamed injection moldings having good appearance can be produced in a short molding cycle and at a low cost; and a mold for expansion injection molding.A movable mold 2 is moved toward a fixed mold 1, whereby a sealing member 6 set on at least one of a pair of facing surfaces of the mold 1 and mold 2 in the outside of a cavity is brought into contact with the other of the facing surfaces or a sealing member 6 set thereon to make the cavity 3 gas-sealed state. While keeping the gas-sealed state, the movable mold 2 is further moved toward the fixed mold 1 with the sealing member 6 compressed, whereby the volume of the cavity 3 is decreased to enhance the pressure in the cavity 3 to a level exceeding the atmospheric pressure. Then, a thermoplastic resin is injected into the cavity 3 of an enhanced pressure.

    摘要翻译： 为了提供一种在模制品的表面上避免产生涡流痕迹的膨胀注塑成型工艺，并且可以在短的成型周期和低成本下制造具有良好外观的发泡注射成型品; 和用于膨胀注塑的模具。 移动模具2朝向固定模具1移动，由此将设置在模具1的一对相对表面和模具2中的至少一个的密封构件6在空腔的外部与另一个 面对的表面或设置在其上的密封构件6，以使空腔3成为气体密封状态。 在保持气体密封状态的同时，可动模2在密封构件6被压缩的同时进一步向固定模1移动，由此减小空腔3的体积，以将空腔3中的压力提高到超过大气压 压力。 然后，将热塑性树脂注入增强压力的空腔3中。

    Mold for pressurizing foamable material
    9.
    发明申请
    Mold for pressurizing foamable material 审中-公开
    用于加压发泡材料的模具

    公开(公告)号：US20070003651A1

    公开(公告)日：2007-01-04

    申请号：US11171553

    申请日：2005-06-30

    申请人： Ming Hsiu Chung ,  Shia Chung Chen ,  Shyh Shin Hwang

    发明人： Ming Hsiu Chung ,  Shia Chung Chen ,  Shyh Shin Hwang

    IPC分类号： A23G1/22

    CPC分类号： B29C44/60 ,  B29C44/10 ,  B29D35/00 ,  B29D35/128

    摘要： A mold device includes a mold member having a mold cavity for receiving a melted foamable material to form an object, and a pressure applying device for applying a pressure to the melted foamable material, and to limit a foaming of the melted foamable material, and for preventing orifices from being formed in an outer peripheral portion of the object, and for forming a smooth and shiny or sparkling outer appearance to the object. A mold piece is movably received in the mold cavity, and an actuator may force the mold piece to force against the melted foamable material. A pumping device may pump the hydraulic fluid into and out of the actuator.

    摘要翻译： 模具装置包括：模具构件，具有用于接收熔融的可发泡材料以形成物体的模腔;以及用于对熔融的可发泡材料施加压力并限制熔融的可发泡材料的发泡的压力施加装置， 防止孔形成在物体的外周部分中，并且对物体形成平滑光亮或闪亮的外观。 模具可移动地容纳在模具腔中，并且致动器可以迫使模具对受熔融的可发泡材料施力。 泵送装置可以将液压流体泵入和流出致动器。

    Making foamed bodies
    10.
    发明申请
    Making foamed bodies 审中-公开
    制泡沫体

    公开(公告)号：US20060279014A1

    公开(公告)日：2006-12-14

    申请号：US10552612

    申请日：2004-05-19

    申请人： Ian Balchin ,  John Feast

    发明人： Ian Balchin ,  John Feast

    IPC分类号： B29C44/58

    CPC分类号： B29C44/10 ,  B29C35/12 ,  B29C44/3402

    摘要： Making foamed bodies by introducing a biodegradable polymer mixture into a mould (10) in which it is heated to form a foam and to fill the mould. The mould is defined between two opposed parts (12, 14) that mate together, and each mould part is of electrically conducting material, and the moulding surfaces are coated with an electrically insulating material (16). Radio-frequency signals are applied (25) between the mould parts (12, 14) so that the polymer mixture is heated by dielectric heating, so a foam tray is formed in less than 15 s. This provides a more rapid cycle time than using heated moulds. The radio frequency signals may be 27.12 MHz, or 40.68 MHz. The polymer may be starch-based.

    摘要翻译： 通过将可生物降解的聚合物混合物引入到其中被加热以形成泡沫并填充模具的模具（10）中来制造发泡体。 两个相对的部分（12,14）之间的模具被限定在一起，并且每个模具部分是导电材料，并且模制表面涂覆有电绝缘材料（16）。 在模具部件（12,14）之间施加射频信号（25），使得通过介电加热来加热聚合物混合物，因此在少于15秒内形成泡沫托盘。 这比使用加热模具提供了更快的循环时间。 射频信号可以是27.12MHz或40.68MHz。 聚合物可以是淀粉基的。