Title:
HARDENING TREATMENT METHOD OF LINER SURFACE PART OF CAST IRON CYLINDER BLOCK FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2013083003
Kind Code:
A
Abstract:
To provide a hardening treatment method of a liner surface part of a cast iron cylinder block as an engine component.
In the hardening method of the liner surface part of the cast iron cylinder block for an internal combustion engine, an absorbent 10 in which graphite powder is diluted with a solvent such as a thinner is coated on a coating film of the liner surface part 26 of an inner wall of the dried cylinder block 25 and MC-based carbide is sintered during laser or electron beam irradiation. By promoting the diffusion of metal powders on a cast iron base material, an alloy layer 22 is formed on the liner surface part 26 of the inner wall of the cylinder block 25.
Inventors:
OGINO TOMOYA
KANAI YASUHIRO
OKA MASANORI
KANAI YASUHIRO
OKA MASANORI
Application Number:
JP2012257133A
Publication Date:
May 09, 2013
Filing Date:
November 26, 2012
Export Citation:
Assignee:
YANMAR CO LTD
International Classes:
C23C26/00; B22F3/105; B22F7/04; B23K15/00; B23K26/00; B23K26/18; B23K26/34; C22C1/05; C23C10/30; F02F1/00
Domestic Patent References:
| JPH01203799A | 1989-08-16 | |||
| JPS61149424A | 1986-07-08 | |||
| JPS6267182A | 1987-03-26 | |||
| JPS62279255A | 1987-12-04 | |||
| JPH0762424A | 1995-03-07 |
Attorney, Agent or Firm:
Juichiro Yano