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1983年我厂开始试制生产与日本P103同类型的立式长轴泵。日本长轴泵中的橡胶轴瓦是压制成形的,故定位精度高、内圆公差小(仅0.25mm)、表面光洁、美观、耐磨性和防老化性能好。而国内采用的橡胶轴瓦都要经过机械加工后才能达到精度要求,这就必然会影响橡胶轴瓦的耐磨性和使用寿命。我们在无资料情况下,经过反复试验,成功地解决了橡胶轴瓦的压制成形。橡胶轴瓦材料的选择由于立式长轴泵在污水中工作,因此橡胶轴瓦应具有如下的物理性能: (1)橡胶制品在+50℃～-10℃温度内性能正常;(2)整个制品机械性能和化学性能应一致;(3)制品硬度在75～80邵尔,偏差不大于1.5～2邵尔;(4)
In 1983, our factory began trial production of vertical long axis pump of the same type with Japan P103. Japan long-axis pump rubber bush is pressed into shape, so the positioning accuracy, the inner circle of small tolerances (only 0.25mm), the surface smooth, beautiful, wear resistance and anti-aging performance. The domestic use of rubber bearings have to go through mechanical processing to meet the accuracy requirements, which will inevitably affect the wear resistance of rubber bearings and service life. In the absence of information on our case, after repeated tests, successfully resolved the rubber bearing forming. The choice of rubber bush material As the vertical long axis pump in the sewage work, so the rubber bearing should have the following physical properties: (1) rubber products in the +50 ℃ ~ -10 ℃ temperature performance normal; (2) the entire product machinery Performance and chemical properties should be consistent; (3) product hardness in the 75 ~ 80 Shore, the deviation is not greater than 1.5 ~ 2 Shore Seoul; (4)