Title:
METHOD AND DEVICE FOR MANUFACTURING INNER-SURFACE COATED CYLINDRICAL BODY AND INNER-SURFACE COATED CYLINDRICAL BODY MANUFACTURED THEREBY
Document Type and Number:
Japanese Patent JP3774696
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide technology for forming an inner surface coating on the inner circumferential face of a cylindrical body with a self-fluxing alloy having a large surface hardness.
SOLUTION: Inside the cylindrical body 1 placed sideways, there is arranged a self-fluxing alloy powder uniformly in the axial direction of the cylindrical body, in a quantity suitable for the thickness of coating to be formed. After a powder layer of a uniform thickness is formed on the inner circumferential face by rotating the cylindrical body 1 at high speed, the powder inside is melted by heating the cylindrical body 1 to form a molten metal layer, then cooled and solidified to form the inner surface coating. In melting and solidifying the self-fluxing alloy, with a centrifugal force of 20-50G kept working on the inner circumferential face position of the cylindrical body 1, the hard ceramics fine particles of low specific gravity in the molten metal are integrated anti-centrifugally on the inner diameter side, increasing the density and hardness of the hard fine particles on the face of the inner surface coating.
Inventors:
Yasuo Watanabe
Michio Tanabe
Yoshinobu Soji
Ken Yatabe
Akihiro Takeya
Fumiaki Tada
Nishibaba Kazunori
Michio Tanabe
Yoshinobu Soji
Ken Yatabe
Akihiro Takeya
Fumiaki Tada
Nishibaba Kazunori
Application Number:
JP2002345332A
Publication Date:
May 17, 2006
Filing Date:
November 28, 2002
Export Citation:
Assignee:
Dai-ichi Kogyo Kogyo Co., Ltd.
International Classes:
B22D19/16; B22D13/00; B22D13/02; B22D13/10; B22D19/00; B22D19/08; B22D19/14; C22C1/10; C22C32/00; C23C24/10; C23C26/00; C23C26/02; (IPC1-7): B22D19/16; B22D13/02; B22D13/10; B22D19/00; B22D19/14; C22C1/10; C22C32/00; C23C24/10; C23C26/02
Domestic Patent References:
JP2000170987A | ||||
JP5293621A | ||||
JP57156384A | ||||
JP6000612A | ||||
JP64025989A | ||||
JP1096363A | ||||
JP2155559A | ||||
JP58141388A | ||||
JP63165057A | ||||
JP57118858A | ||||
JP2002263823A | ||||
JP2108445A | ||||
JP2001214990A |
Attorney, Agent or Firm:
Kyozo Norimatsu