本文是《注塑成型制件的尺寸稳定性研究》第三部份——无定形聚合物是解决尺寸稳定性问题的保险方案。第一和第二部份已在上期发表。无定形聚合物是解决尺寸稳定性问题的保险方案注塑工厂常常认为使用无定形聚合物是解决尺寸稳定性问题的保险方案。无定形聚合物在冷却过程中从熔融态变化到固态时,无定形结构经历 This article is the third part of "Dimensional Stability Research on Injection Molded Parts - An amorphous polymer is a solution to dimensional stability problems. The first and second parts have been published in the last issue. Amorphous polymers are insurance solutions to dimensional stability problems Injection molding plants often consider amorphous polymers as the solution to dimensional stability problems. Amorphous polymers experience amorphous phase change from a molten state to a solid state during cooling