发明名称 |
MECHANICAL SEAL DEVICE, SiC-BASED SINTERED BODY ROTATING RING FOR MECHANICAL SEAL DEVICE, AND MANUFACTURING METHOD OF SiC-BASED SINTERED BODY ROTATING RING FOR MECHANICAL SEAL DEVICE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mechanical seal device excellent in mechanical properties such as a sliding characteristic, strength or fracture toughness, and preventing coming-off of SiC particles by suppressing embrittlement, and used for a liquid shaft sealing device in a rotating apparatus such as a pump using liquid, and a SiC-based sintered body rotating ring used for the mechanical seal device, and a manufacturing method thereof. <P>SOLUTION: In the mechanical seal device including the SiC-based sintered body rotating ring and a carbon-based seal ring, the SiC-based sintered body rotating ring has an average crystal particle diameter of 5 μm or less, and porosity of 1.0% or less. The rotating ring is manufactured by an atmosphere control pressurizing sintering method after mixing 0-100% of the SiC particles having a purity of 99.9% or more manufactured by a vapor phase synthesizing method (CVD method) into SiC-based raw material particles manufactured by an oxide reduction method and granulating and molding. <P>COPYRIGHT: (C)2009,JPO&INPIT |
申请公布号 |
JP2009115137(A) |
申请公布日期 |
2009.05.28 |
申请号 |
JP20070286442 |
申请日期 |
2007.11.02 |
申请人 |
TOSHIBA CORP;SUMITOMO OSAKA CEMENT CO LTD |
发明人 |
TAKAHASHI MASASHI;YASUDA YUJI;USUI HIDEKAZU;KATAYAMA KENJIRO;ONODERA HIROKI;UEDA HIROYUKI;TANAKA MASAMICHI |
分类号 |
F16J15/34;C04B35/565;C04B35/626 |
主分类号 |
F16J15/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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