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球节螺杆热处理淬火方法的改进东风汽车公司刃量具厂王国昌１前言球节在汽车变速器里起到换档作用，它是由球头和固定球头的球碗组成。东风ＥＱ１４５和ＥＱ１５３汽车所使用的球节以前是由日本进口，现在已国产化成功。其中球节螺杆是由３５号钢制造，然后与钢球摩擦焊接...
Ball joint screw heat treatment quenching method improvement Dongfeng Motor Corporation edge measuring tool factory Wang Guochang 1 Foreword Ball joint in the car transmission to play the role of gear shift, which is composed of the ball and the fixed ball head bowl. Ball joints used by Dongfeng EQ145 and EQ153 cars were imported from Japan before and are now domestically produced. Ball screw which is made of 35 steel, and then friction welded steel balls ...