Sbs injection is generally in medium speed , but sebs injection must be in higher speed , to prevent the freeze - off of melting plastics when filling up the mold 注射sbs材料通常使用中等的注射速度.但注射sebs材料就必须使用较高的注射速度,以避免熔胶在填模时半途“冻结” freeze - off
High - temperature manufacturing can speedily fill up the mold and hence reduce molecular orientation . it can also increase the properties of products , but it lengthens the condensation time and increases the injection cycle 高温加工可以快速填模,减低分子定位,提高产品物性,但冷却时间延长而增加注射周期。
A higher mold temperature can increase the viscosity of melting plastics to run inside the mold . injection in low pressure can also fill the mold for a more perfect product surface and can also reduce molecular orientation for quality properties of the product 较高模温可促进溶胶在模内的流动,低压注射亦能填模,有更完美的产品表面,也能减低分子定向molecular orientation .使产品有更优良的物性