硬片又称为胶片,是吸塑用的片材，其中厚度大于2mm的叫板材，常用的有:PET（聚对苯二甲酸乙二酯）硬片、 PC/PVC硬材片图片PVC（聚氯乙烯）硬片、PS（聚苯乙烯）硬片，ABS（工程塑料）。
n. sclerotome
misc. plate negative
已曝光未冲洗的摄影硬片、软片、纸、纸板及纺织物。
Photographic plates, film, paper, paperboard and textiles, exposed but not developed.
前言：目的：消除药品包装用pvc硬片使用中收缩、走偏现象，提高产品内在质量。
Objective: removing the phenomenon of shrinkage and partial, and improving the inter-quality of Medicinal package using PVC rigidity slice in use.
吸塑原理：将平展的塑料硬片材加热变软后，采用真空吸附于模具表面，冷却后成型。
Plastic principle: the flat plastic sheet heating soft, using vacuum adsorption in the surface of the die, formed after cooling.
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