The effects of solidified agent, nanometer silicon dioxide powder and calcium carbonate powder on line contraction percentage of silicon rubber mould were discussed in this paper. 本文主要研究了固化剂、纳米二氧化硅粉和碳酸钙粉等外加剂对硅橡胶模具线收缩率的影响。
Lattice contraction was found through the calculation of lattice constant. The biggest contraction percentage is 1.1%. 通过晶格常数的计算发现:晶格畸变为收缩,且随着粒径的减小收缩率增加,最大值为1.1%。
The cellular contraction percentage was 20.70 ± 0.072%. 细胞收缩百分数为20.70±0.072%。
The Researches on Surface Roughness and Contraction Percentage of the Melted Metal Squeezing Workpieces 液态模锻件表面粗糙度及收缩率的研究
The results of performance measurement test show that tensile-strength, contraction of cross sectional area, elongation percentage, dynamic ductility of the weld all exceed their base metal. 焊后试件的性能测试结果表明,焊接接头的拉伸强度、断面收缩率、延伸率及冲击韧性均已超过母材。