SLIDE MEMBER, PROCESS FOR PRODUCING THE SAME, AND MECHANICAL SEAL AND MECHANICAL SEAL RING UTILIZING THE MEMBER

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...

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Bibliographische Detailangaben
Hauptverfasser:	TAKIGAWA, KAZUAKI, ISHIMINE, YUUSAKU
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY PISTONS REFRACTORIES SEALINGS SLAG THERMAL INSULATION IN GENERAL TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	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.