Die assembly for producing optical glass products and manufacturing method thereof

A technology of optical glass and manufacturing method, applied in glass pressing, manufacturing tools, glass molding and other directions, can solve the problem of optical glass products not easy to demould, and achieve the effects of small deformation, good thermal conductivity and high hardness

Inactive Publication Date: 2006-02-01
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this kind of mold will stick to the optical glass product when it is processed above 400°C, making it difficult for the optical glass product to be released from the mold

Method used

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  • Die assembly for producing optical glass products and manufacturing method thereof
  • Die assembly for producing optical glass products and manufacturing method thereof
  • Die assembly for producing optical glass products and manufacturing method thereof

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] see figure 1 , the present invention provides a mold 1 for molding an aspheric glass lens, which includes a mold base 2 with an aspheric molding surface and a film layer 3 located on the molding surface of the mold base 2 . Among them, the mold base 2 can choose the following materials: SiC, Si, Si 3 N 4 , ZrO 2 , TiN, TiO 2 , TiC, B 4 C, WC, W or WC-Co alloy. The film layer 3 is a diamond-like carbon film (Diamond Like Carbon, DLC) with a thickness of 50-200 angstroms. This kind of diamond carbon film has good chemical inertness and can resist the erosion of various acids, alkalis and harmful gases; it is transparent, has high dielectric strength, good thermal conductivity, high hardness, and low coefficient of friction. It will not stick to aspherical glass lenses during high-temperature molding. It can ensure the aspherical glass lens to be d...

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Abstract

The present invention reveals one kind of mold for making optical glass product and its making process. The mold includes mold base and film attached to the mold base surface. The film is 50-200 angstrom thick and of diamond-like carbon. The mold making process includes the following steps: providing one mold base, and depositing carbon film on the surface of the mold in the rate of 3.3-8.3 angstrom each sec for 6-60 sec to form the film of 50-200 angstrom thickness.

Description

【Technical field】 [0001] The invention relates to a mold and a manufacturing method thereof, in particular to a mold for manufacturing optical glass products and a manufacturing method of the mold. 【Background technique】 [0002] The manufacture of optical glass products, such as aspheric glass lenses, mainly adopts compression molding technology, and the development of compression molding technology actually depends mainly on the progress of mold materials and mold manufacturing technology. The molds for compression molding have the following requirements: [0003] a. At high temperature, it has good rigidity, mechanical impact resistance and sufficient hardness; [0004] b. The mold will not produce cracks and deformation under the thermal shock of repeated and rapid heating and cooling; [0005] c. There is no chemical reaction between the molding surface of the mold and the optical glass at high temperature, and it will not adhere to the glass; [0006] d. High temper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B11/06C03B11/08C23C16/26C23C16/44
Inventor 陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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