Invention Grant
US08158248B2 Porous ceramic for slide member, method for preparing the same, and mechanical seal ring
有权
用于滑动构件的多孔陶瓷,其制备方法和机械密封环
- Patent Title: Porous ceramic for slide member, method for preparing the same, and mechanical seal ring
- Patent Title (中): 用于滑动构件的多孔陶瓷,其制备方法和机械密封环
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Application No.: US11912286Application Date: 2005-12-22
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Publication No.: US08158248B2Publication Date: 2012-04-17
- Inventor: Takeshi Hara , Shinichiro Masuyama
- Applicant: Takeshi Hara , Shinichiro Masuyama
- Applicant Address: JP Kyoto
- Assignee: Kyocera Corporation
- Current Assignee: Kyocera Corporation
- Current Assignee Address: JP Kyoto
- Agency: DLA Piper LLP (US)
- Priority: JP2005-129165 20050427
- International Application: PCT/JP2005/023593 WO 20051222
- International Announcement: WO2006/117897 WO 20061109
- Main IPC: B32B3/26
- IPC: B32B3/26 ; B29C67/20

Abstract:
In porous ceramic for slide member including independent pores having a pore size of 5 μm or more, the independent pore is flattened body having minor axis in a direction perpendicular to a sliding surface, and a cross sectional area (S1) of an independent pore at a cross section perpendicular to the sliding surface is 95% or less of an area (S2) of a complete round having a diameter which is the same length as a major axis of the cross section of the independent pore, and in a cumulative distribution curve of pore sizes of independent pores in a plane parallel to the sliding surface, a ratio (P75/P25) of a pore size of cumulative 75% by volume (P75) to a pore size of cumulative 25% by volume (P25) is 1.9 or less. The porous ceramic can be suitably used as slide member such as seal ring.
Public/Granted literature
- US20090214850A1 Porous Ceramic for Slide Member, Method for Preparing the Same, and Mechanical Seal Ring Public/Granted day:2009-08-27
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