Title:
PISTON MANUFACTURING METHOD AND PISTON
Document Type and Number:
WIPO Patent Application WO/2022/016775
Kind Code:
A1
Abstract:
A piston manufacturing method and a piston. The piston manufacturing method comprises: coating a top surface of a piston base (1) using a magnetron injection technique, so as to form a metal layer (2), wherein the metal layer (2) is a composite metal layer (2) made of aluminum oxide and zirconium oxide; and carrying out an electrochemical reaction on the metal layer (2) using a micro-arc oxidation technique, so as to form a ceramic layer (3), wherein the ceramic layer (3) has a porous structure.
Inventors:
MA FEI (CN)
HAN JINFENG (CN)
QI SHAOBAO (CN)
GUO LINGYAN (CN)
HAN JINFENG (CN)
QI SHAOBAO (CN)
GUO LINGYAN (CN)
Application Number:
PCT/CN2020/134197
Publication Date:
January 27, 2022
Filing Date:
December 07, 2020
Export Citation:
Assignee:
WEICHAI POWER CO LTD (CN)
International Classes:
C23C28/00; C23C14/16; C23C14/35; C25D11/26; F02F3/12
Foreign References:
| CN111850557A | 2020-10-30 | |||
| CN103981498A | 2014-08-13 | |||
| CN104711541A | 2015-06-17 | |||
| CN1554807A | 2004-12-15 | |||
| CN104694930A | 2015-06-10 | |||
| US20130122317A1 | 2013-05-16 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
Download PDF: