公开(公告)号：WO1983000029A1

公开(公告)日：1983-01-06

申请号：PCT/US1981000863

申请日：1981-06-24

Applicant: ABBOTT, Richard, Valentine III

IPC: B29D27/00

CPC classification number: B29C44/343 ,  B28B11/042 ,  B28B11/043 ,  B29C44/1219 ,  B29C44/445 ,  B29K2025/00 ,  B29L2031/102 ,  E04C1/41

Abstract: A building block (10) including at least one internal cavity (e.g. 12) is insulated by molding an insulating layer (24) from expandable thermoplastic polymer particles, such as beaded polystyrene, to one or more interior surfaces (26, 27, 28 or 29) of the cavity. The molding operation is carried out by positioning a male plug member (36) within the internal cavity of the building block with at least one peripheral surface of the plug member spaced from at least one interior surface of the cavity to provide a peripheral compartment into which the polymer particles are directed for molding the layer (24). Thereafter, steam, under pressure, is injected into the peripheral compartment to cause the particles to expand and fuse together into an efficient insulating layer that is expanded into close conformity with the interior surface(s) of the cavity. During the steam injecting operation a positive inwardly directed external force is applied to external surfaces of at least two opposed walls of the block to counteract internal forces generated by the steam. The invention also resides in the apparatus for carrying out the method of this invention, and in the building block formed in accordance with the method of this invention.

Abstract translation: 包括至少一个内部空腔（例如12）的构件块（10）通过将绝缘层（24）与可膨胀的热塑性聚合物颗粒（例如串联聚苯乙烯）模制成一个或多个内表面（26,27,28或 29）。 模制操作通过将阳插头构件（36）定位在构建块的内部空腔内，其中插塞构件的至少一个外围表面与空腔的至少一个内表面间隔开，以提供周边隔室 聚合物颗粒被引导用于模制层（24）。 此后，在压力下的蒸汽被注入到周边隔间中，以使颗粒膨胀并熔合在一起，形成有效的绝缘层，该绝缘层膨胀成与空腔的内表面紧密地一致。 在蒸汽喷射操作期间，向内的至少两个相对壁的外表面施加向内的正向外力，以抵消由蒸汽产生的内力。 本发明还涉及用于实施本发明的方法的设备，以及根据本发明的方法形成的构造块。