Title:
FIBER GUIDE AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3563460
Kind Code:
B2
Abstract:
PURPOSE: To provide a fiber guide excellent in wear resistance which never deteriorate the quality of yarn by forming the sliding surface with at least a fiber of the fiber guide from a ceramic having specified main component and average crystal grain size, and making no void prevent on the sliding surface.
CONSTITUTION: The sliding surface with at least a fiber 2 of a fiber guide 1 is formed of a ceramic containing 99.9wt.% or more of Al2O3 as a main component and having an average crystal grain size of Al2O3 less than 2μm, and specified so that no void exceeding 30μm is present on the sliding surface. Such a fiber guide 1 is manufactured by a process of molding an alumina starting powder having an Al2O3 purity of 99.9wt.% or more and an average grain size of 0.1-0.5μm into a prescribed form followed by baking at 1400-1700°C. Namely, by using a highly pure and extremely fine Al2O3 starting material, the void and grain boundary in the sintered compact are minimized.
More Like This:
| JPH10262515 | PRODUCTION OF MEMBER FOR GUIDE |
| WO/2012/176777 | FIBER GUIDE |
Inventors:
Toshiyuki Ihara
Minoru Nakasuka
Minoru Nakasuka
Application Number:
JP27084794A
Publication Date:
September 08, 2004
Filing Date:
November 04, 1994
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
B65H57/24; C04B35/10; D01D11/04; D01H13/04; (IPC1-7): B65H57/24; C04B35/10
Domestic Patent References:
| JP50123920A | ||||
| JP2255563A | ||||
| JP4206988A | ||||
| JP6183827A | ||||
| JP4300241A | ||||
| JP59203766A | ||||
| JP558551A |