Mold core for molding glass

A glass and mold core technology, which is applied in glass forming, glass pressing, glass manufacturing equipment, etc., can solve the problems of reduced service life of diamond tools, improve machinability, surface roughness and cracks, etc. Effect of reducing chemical abrasiveness

Inactive Publication Date: 2006-05-17
东莞信泰光学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the service life of the diamond tool is rapidly reduced during the rework process of the mold core

Method used

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  • Mold core for molding glass
  • Mold core for molding glass
  • Mold core for molding glass

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0040] In a specific embodiment 1 of the mold core for glass molding of the present invention, the base material 3 is made of WC, the intermediate film 4 is a nitride containing titanium and has a thickness of 100 nm, and the protective film 5 is made of Pd - Crystallized precious metal layer of Ru-Ta-C with a thickness of 20 μm. In this specific example 1, the ratio of Pd wt%: Ru wt%: Ta wt%: C wt% is about 83:2:5:10.

[0041] The manufacturing method of the mold core for glass molding of this specific example 1 will be briefly described below.

[0042] First, a shaping surface with low surface precision and an aspheric shape is formed on a WC substrate, so as to form the substrate 3 having a similar shaping surface 31 .

[0043] Further, the interlayer film 4 containing titanium nitride is formed on the shaping surface 31 by sputtering in a vacuum system.

[0044] Next, using the same vacuum system, methane (CH) with a gas flow ratio of 1:4 was passed through. 4 ) and arg...

specific Embodiment 2

[0049] A specific embodiment 2 of the mold core for glass molding of the present invention is substantially the same as the specific embodiment 1, and the difference is that the protective film 5 is a crystallized noble metal layer containing Ir-Ru-C. In the second embodiment, the ratio of Irwt%:Ruwt%:Cwt% is about 33:22:45.

[0050] The manufacturing method of the mold core for glass molding in the second embodiment is basically the same as that in the first embodiment. The difference lies in that the crystallized noble metal layer containing Ir-Ru-C is sputtered, and CH with a gas flow ratio of 5:1 is passed through it. 4 and Ar and the working pressure is 10mTorr in the reaction chamber, a predetermined power is applied to an alloy target composed of Ir-Ru with a weight percentage of 62:38 to form an Ir- A Ru-C precious metal layer with a thickness of about 20 μm, and at the same time, a temperature rise treatment of 650° C. was performed on the test piece holder on which ...

specific Embodiment 3

[0052] The third embodiment of the mold core for glass molding of the present invention is substantially the same as the second embodiment, except that the protective film 5 is a crystallized noble metal layer containing Ir-Re-C. In this specific example three, the Ir wt%:Re wt%:C wt% is about 45:5:50.

[0053] The manufacturing method of the mold core for glass molding in the third embodiment is basically the same as that in the second embodiment. The difference is that the palladium material used is an alloy target composed of Ir-Re with a weight percentage of 89:11, and CH 4 And the gas flow ratio of Ar is 6:1.

[0054] It is worth mentioning that, since both Ir and Ru in the second embodiment have 3 unpaired electrons, and Re in the third embodiment has 5 unpaired electrons, C in the third embodiment has 5 unpaired electrons. The content needs to be higher than the C content of the second embodiment.

[0055] Through the above description, the protective films 5 of the ...

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Abstract

The present invention discloses mold core for molding glass, and the mold core includes base material and protecting film on the base material and containing M1 and C, where M1 is the noble metal Pd, Au, Ir, Ru, Re, Ta, Pt, Rh, Os or their combination. The protecting film has one precise molding surface far from the base material for molding and has thickness greater than 5 microns.

Description

technical field [0001] The present invention relates to a molding core, in particular to a molding core for glass molding. Background technique [0002] Generally speaking, a mold core for glass molding includes a substrate and a protective film formed on the substrate. The protective film is formed on a side away from the substrate to provide a glass material for molding. the shaping surface. During the molding process, the glass material is placed on the shaping surface of the protective film, and the mold core used for glass molding is given a temperature consistent with melting and softening the glass material, and the glass material is formed by the shaping surface. Under the condition of high temperature molding, the material forms an optical glass element with an optical function surface complementary to the shape of the shaping surface. [0003] In order to reduce the surface roughening and chemical reaction of the protective film of the mold core during the high-t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B11/00
CPCC03B11/086
Inventor 白瑞芬
Owner 东莞信泰光学有限公司
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