【摘要】 为了更准确的选择大型浇注型聚氨酯弹性体产品的收缩率,系统地研究了工艺条件、环境因素和制品结构等对收缩率的影响,并测出了收缩率随时间的变化曲线。分析了其原因。结果表明制品结构对收缩率影响最大,工艺条件对收缩率的变化也有较大影响,而环境条件的波动则是收缩率后期波动的原因。更多还原

【Abstract】 In order to choose the shrinkage of large CPUE products more accurately, the effects of technical conditions, environment factor and the structure of product on the shrinkage of the product were studied systematically, and the curve of the shrinkage varies with time was determined,and the reason for the effect was analyzed in detail. The results showed the structure of product had great effect on the shrinkage, the effect of technical conditions was obvious, and the variety of environment factor was the reason for the subsequent fluctuation of the shrinkage.更多还原