Title:
MECHANICAL-LASER INTERACTIVE POLISHING AND STRENGTHENING METHOD FOR SPRAYED CERAMIC COATING
Document Type and Number:
WIPO Patent Application WO/2024/021718
Kind Code:
A1
Abstract:
The present invention relates to the field of ultra-precision machining, and in particular to a mechanical-laser interactive polishing and strengthening method for a sprayed ceramic coating. The method comprises: firstly, using mechanical polishing means to remove pits and protrusions visible to naked eyes on the surface of an original ceramic coating, and remelting and eliminating pits and unmelted particles formed after the mechanical polishing by using a nanosecond pulse laser because of the higher porosity of the ceramic coating and the characteristic of susceptibility to exfoliation of a plate layer. Mechanical polishing is carried out again to remove a raised remelted layer portion and splashes caused by plasma explosion. By repeating the mechanical-laser interactive polishing method, the surface roughness of a ceramic layer is continuously reduced, and a uniform dense remelted layer is formed to increase the surface strength of a coating. The present invention can be applied to polishing and strengthening treatment of the surface of a sprayed ceramic coating.
Inventors:
HUO KUN (CN)
DAI FENGZE (CN)
LI ZHIBAO (CN)
HUA YINQUN (CN)
YE YUNXIA (CN)
CAI JIE (CN)
DAI FENGZE (CN)
LI ZHIBAO (CN)
HUA YINQUN (CN)
YE YUNXIA (CN)
CAI JIE (CN)
Application Number:
PCT/CN2023/091075
Publication Date:
February 01, 2024
Filing Date:
April 27, 2023
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
C23C4/18; C22F3/00; C23C4/10; C23C4/12
Foreign References:
| CN115233144A | 2022-10-25 | |||
| CN109514076A | 2019-03-26 | |||
| CN114473213A | 2022-05-13 | |||
| CN101367291A | 2009-02-18 | |||
| CN108817655A | 2018-11-16 |
Attorney, Agent or Firm:
NANJING IPZHI INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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