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1 UPVC管材扩口模具设计的要求说明近几年随着塑料工业的不断发展 ,UPVC塑料管材的应用越来越广泛。塑料管材扩口模具的结构设计也多种多样。目前大多UPVC管材输水管多采用R形弹性密封圈密封 ,图 1所示为一种典型的UPVC扩口管材 ,R槽内嵌橡胶密封圈。在管材扩口模具设计中 ,要
1 UPVC pipe flared mold design requirements Description In recent years with the continuous development of the plastics industry, UPVC plastic pipe is more and more widely used. Plastic pipe flared mold structure design is also varied. At present, most of the UPVC pipe water pipe adopts R-shaped elastic seal to seal more. Figure 1 shows a typical UPVC flared pipe with a rubber ring in the R-slot. In the pipe flared mold design, to