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EFFECT OF BACK PRESSURE ON INJECTION MOLDING TECHNOLOGY
Author(s): 
Pages: 29-31
Year: Issue:  7
Journal: ENGINEERING PLASTICS APPLICATION

Keyword:  注射成型背压工艺;
Abstract: 通过背压对不同类型塑料注塑工艺的影响试验,指出在一般注射成型背压压力范围内,背压压力的改变具有压力效应和温升效应的双重性,而且两者相互消长,并对传统的背压曲线提出新的见解.传统的背压曲线中塑化量随着背压的增加呈线性下降的关系,而实际生产中,是呈先升后降的关系,且对不同类型塑料的影响也是大小不一,因此在实际注射成型生产中应该慎重地结合其它工艺条件进行背压的调整.
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