The results have shown that heat treatment can improve the microstructure of the Al-Si base composite manufactured under case condition.
实验结果表明，热处理能改善铸态下制得的铝硅基复合材料显微组织形态。
By the orthogonal regressive principle, the experiment method is designed, and the regularity that the affect elements si and Mn in the mechanical properties of cast zinc-base alloy have been studied.
采用正交组合回归设计实验方法，研究硅、锰元素对铸态锌基合金力学性能的影响规律。
The drawing tests of stainless steel (SUS304) with reaction bonded Si 3N 4 ceramics die lubricated with water base lubricant were carried out using a four columns YA 100 type drawing machine.
在YA-100型四柱液压拉深机上，进行了用反应烧结氮化硅材料凹模拉深不锈钢（SUS304）的试验研究。
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