By make experiment of plunger case surface abrasion hardness, in the last, adopt high strength engineering plastic to act as anti-abrasive material, make the success, get great result.
通过对柱塞的表面耐磨层进行各种试验，最后采用了高强度工程塑料进行压注试验，取得了成功，效果显著。
Corundum abrasive with bauxite as the main raw material formed at high temperature melting.
棕刚玉磨料以铝矾土为主要原料经高温熔炼而成。
According to the working condition of high temperature and abrasive wear, the material structure and composition of the wear-resistant and heat-resistant steel are designed.
根据在高温氧化性气氛下磨料磨损的工况条件，合理设计了抗磨耐热钢材料的组织和化学成分。
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