Glass mould pressing coating, preparation method thereof, application of the coating and mould

A coating and molding technology, used in glass pressing, glass manufacturing equipment, glass die-casting equipment, etc., can solve the problems of short service life, serious carbon film, adhesion of nitride coatings, etc., and achieve excellent and good anti-adhesion properties. The effect of anti-oxidation and simple preparation process
CN110482852AInactive Publication Date: 2019-11-22NO 59 RES INST OF CHINA ORDNANCE IND +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NO 59 RES INST OF CHINA ORDNANCE IND
Publication Date
2019-11-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a glass mould pressing coating, a preparation method thereof, application of the coating and a mould. The coating comprises a nitride layer and nano precious metal particles dispersed in the nitride layer, and the surface roughness of the coating is 2-12 nm. The preparation method comprises the following steps: cleaning a to-be-deposited substrate and a target material in aninert gas protective atmosphere environment; in a mixed environment atmosphere of nitrogen and inert gas, depositing a Cr transition layer, the nitride layer and the nanometer precious metal particles on the surface of the to-be-deposited substrate by adopting a high-purity W target, a high-purity Cr target and a precious metal inlaid Cr target. The prepared coating not only has good oxidation resistance, but also is quite excellent in anti-adhesion property, can effectively inhibit adhesion reaction between a glass body and a mould, can be applied to the precision mold pressing mould, and can also be applied to a high-temperature resistant material, an anti-oxidation material and an anti-adhesion material.
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Description

technical field

[0001] The invention relates to a glass molded coating, a preparation method of the glass molded coating, an application of the glass molded coating and a precision mold containing the glass molded coating. Background technique

[0002] Optical glass has excellent thermal and chemical stability, high light transmittance, low thermal expansion coefficient and other advantages, and is widely used in aerospace, digital photography, medical equipment and other fields. The traditional processing methods of optical glass components mainly include CNC cutting and ultra-precision grinding. The disadvantages are that optical components with complex shapes cannot be processed, and the processing efficiency is low and the cost is high, which limits the further application of optical glass components.

[0003] Optical glass precision molding technology is a high-precision optical element processing technology. Its specific process is to put the glass blank into a high-pr...

Claims

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