Title:
METHOD FOR MANUFACTURING INTERNAL-COMBUSTION ENGINE PISTON
Document Type and Number:
WIPO Patent Application WO/2020/017192
Kind Code:
A1
Abstract:
In a method for manufacturing an internal-combustion engine piston according to the present invention, a functional layer is formed on a piston crown surface by carrying out: a first state functional layer installation step (S14) of installing on a piston crown surface a first state functional layer (31) comprising a retaining agent which retains a functional powder sintering material and which includes at least one of a resin, an adhesive, and wax; heating (S15) of the first state functional layer, implemented after the first state functional layer installation step, to reduce the volume of the retaining agent to a greater extent than in the first state functional layer; and a sintering step (S16), (S17) of sintering the functional powder sintering material to form a functional sintered body, thereby generating a second state functional layer.
Inventors:
SASAKI MASATO (JP)
TOEI SHUN (JP)
TOEI SHUN (JP)
Application Number:
PCT/JP2019/023185
Publication Date:
January 23, 2020
Filing Date:
June 12, 2019
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F02F3/00; C23C24/10; F02F3/10; F16J1/01
Domestic Patent References:
| WO2018061591A1 | 2018-04-05 |
Foreign References:
| JP2012117482A | 2012-06-21 | |||
| JP2017008835A | 2017-01-12 | |||
| JPH07150368A | 1995-06-13 | |||
| JPS62202709A | 1987-09-07 | |||
| JPS61163282A | 1986-07-23 | |||
| JP2008267158A | 2008-11-06 | |||
| JPS63150455A | 1988-06-23 | |||
| CN105863869A | 2016-08-17 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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