Abstract An experimental study was performed by employing a seal pair of phenolic resin impregnated graphite and high chromium martensitic stainless steel 9Cr18. A purpose-built test rig was designed and fabricated to study the effect of face temperature on the surface morphology of a seal ring made of phenolic resin impregnated graphite with different graphitization degrees for varying PV values (pressure × velocity). As revealed by the results, the effect of rotational speed on heat generation between the two mating surfaces was more significant than that of fluid pressure. The effects of surface frictional temperature between the two faces were found different when the phenolic resin impregnated graphite ring with different graphitization degrees. The worn surfaces of the phenolic resin impregnated graphite rings were examined with the assistance of scanning electron microscopy and 3D measuring laser microscopy to investigate the wear mechanism for these different mating rings. Both adhesive and abrasive wear mechanisms were discovered under the working conditions. It was found out that the phenolic resin impregnated graphite ring with a high degree of graphitization was worn more severely at high PV values. Under the conditions of high speeds or high PV values, the phenolic resin impregnated graphite with fine and compact graphite matrix particles, medium degree of graphitization, high thermal conductivity and hardness is the top choice.

中文翻译：

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不同PV值下浸渍石墨与铬不锈钢的摩擦特性

摘要 采用酚醛树脂浸渍石墨和高铬马氏体不锈钢9Cr18 密封副进行了实验研究。设计并制造了一个专门建造的试验台，以研究表面温度对由酚醛树脂浸渍石墨制成的密封环表面形貌的影响，该密封环由具有不同石墨化程度的不同 PV 值（压力 × 速度）制成。结果表明，转速对两个配合面之间发热的影响比流体压力的影响更显着。当酚醛树脂浸渍不同石墨化程度的石墨环时，发现两个面之间的表面摩擦温度的影响不同。借助扫描电子显微镜和 3D 测量激光显微镜检查酚醛树脂浸渍石墨环的磨损表面，以研究这些不同配合环的磨损机制。在工作条件下发现了粘着磨损和磨粒磨损机制。发现高石墨化酚醛树脂浸渍石墨环在高PV值下磨损更严重。在高速或高PV值条件下，石墨基体颗粒细密致密、石墨化程度中等、导热率和硬度高的酚醛树脂浸渍石墨是首选。在工作条件下发现了粘着磨损和磨粒磨损机制。发现高石墨化酚醛树脂浸渍石墨环在高PV值下磨损更严重。在高速或高PV值条件下，石墨基体颗粒细密致密、石墨化程度中等、导热率和硬度高的酚醛树脂浸渍石墨是首选。在工作条件下发现了粘着磨损和磨粒磨损机制。发现高石墨化酚醛树脂浸渍石墨环在高PV值下磨损更严重。在高速或高PV值条件下，石墨基体颗粒细密致密、石墨化程度中等、导热率和硬度高的酚醛树脂浸渍石墨是首选。