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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

Inactive Publication Date: 2019-11-22
NO 59 RES INST OF CHINA ORDNANCE IND +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the service life of the carbon film is relatively short, which limits its large-scale application; the adhesion problem of the nitride coating is serious, which makes the adhesion between the glass body and the mold easy to occur
However, the high cost of precious metal coatings limits its wide-scale industrial application.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A kind of glass molding coating, including Cr transition layer, Cr x W y N （1-x-y） layer and diffuse distribution in Cr x W y N （1-x-y）Pt nanoparticles within the layer. In this embodiment, the surface roughness of the glass molded coating is 3.47 nm; the content of each element in the glass molded coating is: the atomic content of Cr element is 19.8 at.%, the atomic content of W element is 28.7 at.%, N The atomic content of the element is 46.9 at.%, the atomic content of the Pt element is 4.6 at.%, and the Pt nanoparticles are dispersed in the nitride matrix with a columnar crystal structure; the thickness of the Cr transition layer is 100nm, and the thickness of the CrWN-Pt layer It is 1010nm, the hardness is 20.41GPa, and the elastic modulus is 365.7 GPa.

[0050] The glass molded coating in this embodiment was prepared by using a plasma-enhanced magnetron sputtering system and the following method. Among them, the plasma-enhanced magnetron sputtering system i...

Embodiment 2

[0065] A kind of glass molding coating, comprises Cr transition layer, Cr x W y N （1-x-y） layer and diffuse distribution in Cr x W y N （1-x-y） Pt nanoparticles and Ir nanoparticles in the layer.

[0066] In the present embodiment, the surface roughness of the glass molded coating is 5.741nm; the content of each element in the glass molded coating is: the atomic content of Cr element is 22.3 at.%, the atomic content of W element is 27.96 at.%, N The atomic content of the element is 44.72 at.%, the atomic content of the Pt element is 3.5 at.%, and the atomic content of the Ir element is 1.52 at.%, and the Pt nanoparticles and Ir nanoparticles are dispersed in the nitride with a columnar crystal structure. In the matrix; the thickness of the Cr transition layer of the glass molded coating is 111nm, the thickness of the CrWN-PtIr layer is 932 nm, the hardness is 18.27GPa, and the elastic modulus is 342.1 GPa.

[0067] The glass molded coating in this embodiment was prepared ...

Embodiment 3

[0081] Example 3: The coating is deposited on a silicon wafer, and the surface roughness of the coating deposited on the silicon wafer is measured using an atomic force microscope (AFM). The measurement area is 10x10 μm, and the results show that the surface roughness of the coating is 1.6- 2.3nm.

[0082] To sum up: the hardness of the coating prepared in the embodiment of the present invention can reach 18.27-24.32GPa, the modulus of elasticity can reach 280-413GPa, and the surface roughness of the coating can reach 2-11.73nm. Not only has good oxidation resistance, but also has excellent anti-adhesion properties, which can effectively inhibit the adhesion reaction between the glass body and the mold; through scanning electron microscope observation, the cross-section of the glass molded coating of the present invention is a columnar crystal growth structure with a fine structure. The matrix is ​​tightly bonded, and the crystal grains doped on the surface of the coating are ...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B40/00C03B23/00C23C14/02C23C14/06C23C14/18C23C14/35
CPCC03B40/00C03B23/00C23C14/025C23C14/0641C23C14/185C23C14/35C23C14/0036C03B2215/22C23C14/021C03B11/086C03B2215/06C03B2215/05C23C14/352C23C14/505C03B23/03C04B41/5062C04B41/5111C03C17/225Y10T428/25
Inventor 陈强龚峰解志文李康森黄新放邢志辉
Owner NO 59 RES INST OF CHINA ORDNANCE IND
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