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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, etc., can solve the problems affecting the quality of optical glass products, surface roughness, etc.

Inactive Publication Date: 2005-10-19
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, the surface of the mold made of the above materials will become rough due to oxidation after repeated molding, and this result will directly affect the quality of the processed optical glass products

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

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] 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 inner surface and a film layer 3 attached to the inner 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, WC-Co alloy. The material of film layer 3 is (ZrO 2 ) x (Y 2 o 3 ) y (Al 2 o 3 ) z , wherein x is equal to 0.77-0.92, y is equal to 0.05-0.15, z is equal to 0.03-0.08, and its thickness is 100-500 angstroms.

[0022] see figure 2 , the present invention uses radio frequency sputtering (RF Sputtering) equipment 10 to form the film layer 3 . The radio frequency sputtering equipment 10 of the present invention comprises a vacuum chamber 11, and it is grounded; A sputtering target 12 that is positione...

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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 100-500 angstrom thick and of the material (ZrO2)x(Y2O3)y(Al2O3)z, where x is 0.77-0.92, y is 0.05-0.15 and z is 0.03-0.08. The mold making process includes the following steps: providing one mold base, and depositing (ZrO2)x(Y2O3)y(Al2O3)z on the surface of the mold in the rate of 3.3-8.3 angstrom each sec for 12-150 sec to form the film of 100-500 angstrom thickness. The mold of the present invention will not become rough via oxidation during molding.

Description

【Technical field】 [0001] The present invention relates to a mold and its manufacturing method, in particular to a mold for manufacturing optical glass products and its manufacturing method. 【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 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 does 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 does not adhere to the glass; [0006] d. High temperature oxidation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B11/06C03B11/08C23C16/40C23C16/44
Inventor 陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD