Method for producing a hollow plastic product having a radially extending portion
    4.
    发明公开
    Method for producing a hollow plastic product having a radially extending portion 失效
    一种用于生产具有一径向突出部的塑料制成的中空对象的和由此制造制品的方法。

    公开(公告)号:EP0550776A1

    公开(公告)日:1993-07-14

    申请号:EP92100144.2

    申请日:1992-01-07

    IPC分类号: B29C49/48 B29C69/02

    摘要: A method for producing a plastic product including an axially extending portion (15), such as a duct or pipe, and a radially extending portion, such as a flange or bracket, is provided. A parison is placed in a first mold cavity defined in a mold and blow molded to form the axially extending potion, and then a movable mold segment (13,14) is moved to a retracted position to define a second mold cavity (18) adjacent to a part of an outer peripheral surface of the axially extending portion thus formed. Then, a second molted plastic material (19) is supplied into the second mold cavity (18) and the movable mold segment (13,14) is again moved to another predetermined position to pressurize the second plastic material to thereby form a radially extending portion. The resulting hollow plastic product is extremely high in structural integrity between the axially (15) and radially extending portions.

    摘要翻译: 一种用于制造塑料产品,其包括在轴向延伸部分(15)的方法:例如管道或管,和一个径向延伸的部分,作为检查的凸缘或托架,提供。 甲型坯在模具所限定的第一模腔放置并吹塑成型以形成沿轴向延伸的药水,然后可移动的模具段(13,14)被移动到缩回位置以限定第二模具腔体(18)相邻的 到轴向延伸部分的外周表面的一部分由此形成。 然后,第二蜕皮塑料材料(19)被供给到第二模腔(18)和可动模具部段(13,14)再次移动到另一预定位置,以加压所述第二塑料材料,从而形成一个沿径向延伸的部 , 得到的中空塑料产品是结构轴向之间(15)和沿径向延伸的部分的完整性极高。

    MULTILAYER INJECTION-MOULDING AND BLOW-MOULDING METHOD
    6.
    发明公开
    MULTILAYER INJECTION-MOULDING AND BLOW-MOULDING METHOD 有权
    VERFAHRENFÜRMEHRSCHICHTIGES SPRITZGIESSEN UND BLASFORMEN

    公开(公告)号:EP2962832A1

    公开(公告)日:2016-01-06

    申请号:EP14735694.3

    申请日:2014-05-15

    摘要: The present invention relates to a molding process by superimposed injection and blowing regarding the field of mechanical engineering applied to the processing of thermoplastic polymer materials. The proposed process allows the combination of injection molding superimposed with blowing molding. The injection of superimposed material may occur before, simultaneously, or after the blowing process. Combining these two processes allows obtaining a piece consisting in one or more thermoplastic raw materials of polymer matrix, taking advantage of each process at the same time. This process can be carried out using only a mould, allowing the production of pieces with characteristics of each of the processes in a single molding cycle. It also allows obtaining plastic pieces combining the features of each process. The raw material used for the second injection may be equal to the raw material used in the first injection, but may also be different providing different color or other physical distinctive characteristics to the final product.

    摘要翻译: 本发明涉及通过叠加注射和吹塑来应用于热塑性聚合物材料的加工的机械工程领域的成型方法。 所提出的方法允许注射成型与吹塑成型叠加。 叠加材料的注入可能发生在吹塑过程之前,同时或之后。 结合这两个方法可以获得一个由聚合物基质的一种或多种热塑性原料组成的片,同时利用每个工艺。 该方法可以仅使用模具进行,允许在单个成型周期中生产具有每个工艺特征的部件。 它还允许获得结合每个过程的特征的塑料片。 用于第二次注射的原料可以等于在第一次注射中使用的原料,但是也可以不同于为最终产品提供不同的颜色或其他物理特征。