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我厂采用喷涂塑料轴承套代替巴氏合金轴承套,支承磨削C620车床主轴锥孔和车床尾架主轴锥孔等零件已多年,主要解决接触主轴支承面外圆划伤的严重质量问题。如巴氏合金轴承套支承磨削车床尾架主轴锥孔能磨400件左右,且主轴外圆划伤严重,用塑料轴承套支承磨削锥孔达800～1000件,主轴外圆无划伤现象,产量和质量均有提高。如图所示,在金属轴承套2表面采用喷涂0.8～1毫米厚低压聚乙烯,既能保持金属轴承套的基体本身的机械性能,如刚性、硬度、尺寸稳定、导热性,又可获得塑料的各种优点,如耐磨、自润滑、加工简便等。喷涂时不受
Our factory uses sprayed plastic bearing instead of babbitt bearing sleeve, bearing grindstone spindle taper hole C620 lathe and tailstock spindle taper hole and other parts for many years, mainly to solve the contact with the spindle bearing surface of the outer circle of serious quality problems. Such as the Babbitt bearing sleeve bearing grinder tailstock spindle taper hole can be worn about 400, and the spindle outer circle scratches serious, with plastic bearing sleeve bearing grinding cone up to 800 to 1000, the spindle without scratches Phenomenon, production and quality have improved. As shown in the figure, the surface of the metal bearing sleeve 2 is sprayed with 0.8-1 mm thick low-pressure polyethylene to maintain the mechanical properties of the metal bearing sleeve itself, such as rigidity, hardness, dimensional stability, thermal conductivity, and plastic The various advantages, such as wear-resistant, self-lubricating, easy processing and so on. Spray when not affected