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    • 10. 发明申请
    • Apparatus and process for producing and delivering a foamable plastic
    • 用于生产和输送可发泡塑料的装置和方法
    • US20070003652A1
    • 2007-01-04
    • US11504988
    • 2006-08-16
    • Andreas Beckmann
    • Andreas Beckmann
    • B29C47/96
    • B29C44/3446B29C44/3449
    • An apparatus and a process for producing and delivering a foamable plastic, especially for injecting a foamable plastic, containing a physical blowing agent, include a casing having an interior and a screw disposed in the interior for conveying a stream of a plastics melt through at least one subsection of the interior along a conveying zone to a closable orifice of the casing. A channel in the screw has a channel exit orifice for supplying the physical blowing agent in a region of the conveying zone, so that the physical blowing agent can be added to the plastics melt. A control unit for controlling the exiting of the physical blowing agent from the channel is disposed at the screw, outside the channel and in front of the channel exit orifice.
    • 用于生产和输送可发泡塑料的装置和方法,特别是用于注射含有物理发泡剂的可发泡塑料的发泡塑料包括:具有设置在内部的内部和螺钉的壳体,用于通过至少一个塑料熔体流输送 沿着输送区域的内部的一个子部分到壳体的可关闭的孔口。 螺杆中的通道具有用于在输送区域的区域内供给物理发泡剂的通道出口孔,从而可将物理发泡剂加入到塑料熔体中。 用于从通道控制物理发泡剂的排出的控制单元设置在螺杆,通道外部和通道出口孔的前方。