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Inner mold for molding glass and its regeneration process

A kind of molding and glass technology, which is applied in the field of mold core and regeneration of molded glass, can solve the problems of bad influence of production cost, thick intermediate layer, etc., achieve excellent reproducibility, short regeneration time, and increase the effect of adhesion

Inactive Publication Date: 2005-09-28
ASIA OPTICAL CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although its reproducibility is good, but because the thickness of the intermediate layer is too thick, it takes hundreds of hours for the first coating, which is too time-consuming and has a negative impact on production costs

Method used

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  • Inner mold for molding glass and its regeneration process
  • Inner mold for molding glass and its regeneration process
  • Inner mold for molding glass and its regeneration process

Examples

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Effect test

Embodiment 1

[0021] Please refer to figure 1 , is a cross-sectional view showing the structure of the mold core 1 for molding glass of the present invention. Wherein, the structure of the mold core 1 includes a substrate 100 , a first noble metal layer 101 , a second noble metal layer 102 , a third noble metal layer 103 , and a protective film 104 stacked in sequence. Wherein the protection film 104 is diamond-like carbon (DLC). In addition, the protective film 104 has a molding surface 120 thereon.

[0022] The substrate 100 is usually made of tungsten carbide, which usually contains a nickel component. Therefore, the material of the first noble metal layer 101 is preferably an iridium-rhenium alloy containing nickel to increase the distance between the first noble metal layer 101 and the substrate 100. Adhesion. In terms of the formation of the first noble metal layer 101, the surface of the substrate 100 is ground and polished first, and a layer of nickel-containing iridium-rhenium a...

Embodiment 2

[0029] Please refer to Figures 2A-2C , is a series of cross-sectional views showing the flow of the method for regenerating the mold core 1 for glass molding according to the present invention.

[0030] because figure 1 The carbon in the protective film 104 and the third noble metal layer 103 of the mold core 1 of the molded glass of the present invention shown can be etched and removed by oxygen plasma. Therefore, when the use of the mold core 1 is about to expire or reaches its molding life, it will be replaced from the production line for regeneration. First, in Figure 2A In the process, oxygen plasma 200 is used to etch and remove the protective film 104 and the third noble metal layer 103, wherein, whether the third noble metal layer 103 is a noble metal layer with carbon atoms and noble metal atoms arranged in a superlattice, or a carburized surface , when the carbon atoms are etched and removed by the oxygen plasma 200, the remaining noble metal atoms will loosen o...

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Abstract

The present invention discloses inner mold for molding glass and its easy regeneration process. The inner mold includes the bottom material, the first noble metal layer on the bottom material, the second noble metal layer on the first noble metal layer, the carbon-containing third noble metal layer on the second noble metal layer, and diamond carbon-like protecting layer on the third noble metal layer. The carbon-containing noble metal layer connects the diamond carbon-like protecting layer can increase the adhesion between the protecting film and the bottom material, the carbon atom in the middle layer can inhibit the growth of crystal grain in the noble metal film, and the noble metal layers in compact structure can prevent the bottom material components from diffusing to the protecting film. Using carbon-containing noble metal layer can raise the regeneration performance of the inner mold.

Description

Technical field: [0001] The invention relates to a die for molding glass, in particular to a die for molding glass which is easy to process and regenerate and a regeneration method thereof. technical background: [0002] According to a series of precious metal mold core patents issued by Panasonic Corporation of Japan, the addition of a third element to highly chemically inactive precious metals can inhibit grain growth, and its application in high-temperature molding can make the mold core have excellent molding life. For example, what is disclosed in Japanese Patent Publication No. 63-103836 is to use Ir-Re-C directly as the protective film of the tungsten carbide substrate, and the precious metal between the protective film and the substrate does not have a mold core for the intermediate layer. At a molding temperature of 800°C, the molding life can reach more than 2000 times. However, the precious metal film layer is not easy to deplating and can only be removed by grin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B11/06
CPCC03B2215/32C03B2215/31C03B2215/24C03B11/086
Inventor 白瑞芬
Owner ASIA OPTICAL CO INC
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