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内燃机车所用的冷却水泵,由于其轴向端面密封不耐磨,引起水泵漏水,影响机车的正常运行。因此,必须改善水泵密封环的质量,以提高内燃机车运行的可靠性。冷却水泵轴向端面密封环的材料,原设计采用层压酚醛塑料,通常只能维持机车走行二万公里左右。我厂曾试用广州化工研究所研制的聚苯硫醚材料,使用寿命与层
The cooling water pump used in diesel locomotives, due to its axial end face seal is not wear-resistant, causing the water pump leakage, affecting the normal operation of the locomotive. Therefore, it is necessary to improve the quality of the pump seal ring to improve the reliability of the operation of diesel locomotives. Cooling pump axial end face seal ring material, the original design using laminated phenolic plastic, usually only to maintain the locomotive about 20000 kilometers. I plant has tried Guangzhou Institute of Chemical Technology developed polyphenylene sulfide material, life and layer