A:毛坯方面：查找生产过程记录绝大部分为2018年7-8月份生产的，因

A: rough aspects: Find vast majority of the production process records in July 2018 - August production, due to climate larger temperature changes, high temperatures, leading to accelerate the curing time, low strength and deformation of the cavity;

A:毛坯方面：查找生产过程记录绝大部分为2018年7-8月份生产的，因气候温差变化较大，温度较高，导致固化时间加快，型腔强度偏低而变形;

A: In terms of blank: most of the records of production process are from July to August 2018. Due to the large change of temperature difference and high temperature, the curing time is accelerated, and the cavity strength is low and deformed;