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发明授权
US08916488B2 Sliding member, manufacturing method thereof, mechanical seal ring using sliding member and mechanical seal using mechanical seal ring 有权
滑动构件，其制造方法，使用滑动构件的机械密封环和使用机械密封环的机械密封

Sliding member, manufacturing method thereof, mechanical seal ring using sliding member and mechanical seal using mechanical seal ring
摘要：
A sliding member having a sliding surface comprising a silicon carbide sintered body having a primary phase comprising mainly silicon carbide, and a subphase having a different composition from the primary phase and containing at least boron, silicon and carbon. The ratio of pores having a roundness of 6 μm or less and a pore diameter of 10 to 60 μm with respect to all pores having a pore diameter of 10 μm or more in the sliding surface is 60% or more. This enables retention of good seal properties even in a long-term continuous use. The subphase in the silicon carbide sintered body is preferably granular crystal phases dotted among a plurality of the primary phases. This provides excellent lubricating liquid holding performance as well as excellent thermal conductivity and excellent thermal shock resistance properties.
摘要（中）：

一种具有滑动表面的滑动构件，其包括具有主要包含碳化硅的主相的碳化硅烧结体，以及与所述主相具有不同组成并且至少含有硼，硅和碳的亚相。 相对于滑动面中的孔径为10μm以上的所有孔，圆度为6μm以下，孔径为10〜60μm的孔的比例为60％以上。 这使得即使在长期连续使用中也能保持良好的密封性能。 碳化硅烧结体中的亚相优选为在多个一相中点缀的粒状结晶相。 这提供优异的润滑液保持性能以及优异的导热性和优异的耐热冲击性能。

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