• This paper sums up the cutting, heat treatment of 4. J32 low-expansion alloy applied in a space instrument, analyses the reasons why 4j32 is difficult to be cut.

    文中4j32低膨胀合金航天遥感器型号产品上应用切削加工及热处理进行了综述。

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  • This paper introduces the casting precipitation properties, their effects on the alloy microstructure and the methods to eliminate the precipitation of the Low-expansion superalloy GH909. and GH907.

    本文研究了低膨胀高温合金GH907GH909组织中偏析性质,偏析合金组织影响,以及消除偏析的方法

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  • Hypereutectic Al-Si alloy which has small proportion, low coefficient of thermal expansion, good wear resistance and dimensional stability is an ideal piston material.

    过共晶铝硅合金比重热膨胀系数低、耐磨性体积稳定性好,理想活塞材料

    youdao

  • Hypereutectic Al-Si alloy which has small proportion, low coefficient of thermal expansion, good wear resistance and dimensional stability is an ideal piston material.

    过共晶铝硅合金比重热膨胀系数低、耐磨性体积稳定性好,理想活塞材料

    youdao

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