• 本文通过合理改变齿运用复烧工艺,成功解决被动棘轮齿形密度分布问题,研制产品完全满足图纸各项性能要求

    The proper density distribution of tooth for passive ratchet was obtained by varying tooth angle and using repressing and resintering processes. The products obtained satisfy the design requirements.

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  • 采用粉末冶金复烧技术制备高密度铜碳材料,对两种成分铜材料显微组织、物理力学性能耐磨性能进行了对比试验。

    The technology of repressing and re-sintering in powder metallurgy had been used to fabricate a c Cu-C composite materials attaining above 95% of the theoretical density.

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  • 研究矿渣粉煤灰页岩单掺及对高阿利特水泥凝结时间抗压强度电阻率水化产物组成微观结构影响

    The effect of slag, fly ash, and calcined shale on setting time, compressive strength, resistivity, composition and microstructure of hydrated product of alite-rich Portland cement were studied.

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  • 研究矿渣粉煤灰页岩单掺及对高阿利特水泥凝结时间抗压强度电阻率水化产物组成微观结构影响

    The effect of slag, fly ash, and calcined shale on setting time, compressive strength, resistivity, composition and microstructure of hydrated product of alite-rich Portland cement were studied.

    youdao

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