METHOD AND DEVICE FOR PRODUCING INJECTION-MOLDED PARTS BY A TWO-COMPONENT INJECTION-MOLDING TECHNIQUE AND INJECTION-MOLDED PART

摘要

A method for producing injection-molded parts by a two-component injection-molding technique in which a first material component is injected into a mold cavity and is displaced into peripheral regions of the mold cavity by injecting a second material component. The first material component is injected into a partial region of the mold cavity at a first gating point and the second material component is injected into the mold cavity at a second gating point and, as a result, the first material component is acted upon by the second material component and displaced in the direction of the regions of the mold to be filled with the first material component. The first material component is thereby displaced into regions of the mold at the wall, and the second material component is introduced in those regions of the mold as a core material and completely into other regions of the mold.

主权项

1. A method for producing injection-molded parts (2) by a two-component injection-molding technique, comprising:
injecting a first material component (8) into a mold cavity (5) of a mold (3) at a first gating point (7a); injecting a second material component (9) into the mold cavity at a second gating point (7b) and displacing the first material into peripheral regions of the mold cavity (5) with the second material component (9); wherein, the first material component (8) is acted upon by the second material component (9) and is displaced in a direction of regions of the mold to be filled with the first material component (8), the first material component (8) being displaced into regions of the mold at the wall; and wherein the second material component (9) is introduced at least in certain regions as a core material into the regions of the mold to be filled with the first material and completely into other regions of the mold.