Title:
NON-STICK HARD COATING FOR INJECTION MOLD AND PREPARATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/155732
Kind Code:
A1
Abstract:
Disclosed are a non-stick hard coating for an injection mold and a preparation method thereof. The method comprises depositing a layer of a composite coating, which comprises a hard metal, a hard ceramic phase and a carbon material, onto a surface of an inner chamber of the mold, and subjecting the coating to surface modification and structural design to provide the same with low surface energy, thereby resolving the issue in which a hot injected mass sticks easily, and also meets the need for a wear-resistant surface, without using a mold release agent, and thus eliminates the process of brushing or spraying a mold release agent. The non-stick hard coating for an injection mold and the preparation method thereof integrate technical fields, such as metal surface coating preparation and plasma modification, to construct a heterogeneous composite coating structure and modify an outer surface of the coating so as to provide a hard composite coating capable of preventing a hot injected mass sticking to a surface of an injection mold. The composite coating thus enables the surface of the injection mold to have high wear resistance and good non-stick performance at the same time.
Inventors:
CHEN JUN (CN)
LE WUSHI (CN)
LE WUSHI (CN)
Application Number:
PCT/CN2019/116155
Publication Date:
August 06, 2020
Filing Date:
November 07, 2019
Export Citation:
Assignee:
SUZHOU CHAMPION COATING TECH CO LTD (CN)
International Classes:
C23C14/06; C23C14/16; C23C14/35
Domestic Patent References:
| WO2014099211A1 | 2014-06-26 |
Foreign References:
| CN109594042A | 2019-04-09 | |||
| CN1970827A | 2007-05-30 | |||
| CN107587115A | 2018-01-16 | |||
| CN108193173A | 2018-06-22 | |||
| CN106929849A | 2017-07-07 | |||
| CN106282935A | 2017-01-04 | |||
| CN108239767A | 2018-07-03 | |||
| CN107034440A | 2017-08-11 | |||
| JP2007031797A | 2007-02-08 | |||
| US20070114637A1 | 2007-05-24 |
Attorney, Agent or Firm:
SUZHOU JINHE INTELLECTUAL PROPERTY AGENCY(SPECIAL GENERAL PARTNERSHIP) (CN)
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