Length variation

Through analyzing the experimental data,the quantitative dependence of resistance varying-ratio on cutting-length varying-ratio of transverse-cutting is gotten,and the function of them when cutting-length varying-ratio is less than 55% is fitted.

通过实验数据分析得出激光横向切割的长度变化率与阻值变化率之间的定量结论 ,并拟合了有效横向切割长度的阻值变化率与切割长度变化率之间的关系函数 ,二者能够为提高调阻精度和调阻效率提供控制依据。

Based on analysis of the causes,method for reducing heated length variation as well as simplified identifying approach are proposed aiming at its technological process.

加热长度变化率是国家标准规定的塑料地板砖的物理性能指标之一,目前不少产品此项指标未能达到国家标准。