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Mould and its preparation method

A mold and molding technology, applied in the field of mold with protective layer and its preparation, can solve the problems of high cost of platinum film and platinum-iridium alloy

Inactive Publication Date: 2006-09-13
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 cost of platinum film and platinum-iridium alloy used in this mold is too high

Method used

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  • Mould and its preparation method
  • Mould and its preparation method
  • Mould and its preparation method

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Embodiment Construction

[0037] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0038] see figure 2 , the mold 20 of the first embodiment of the present invention includes: a mold base 21, which has a molding surface corresponding to a product to be molded; an adhesive layer 22 formed on the molding surface; an adhesive layer 22 formed on the adhesive layer a diffusion barrier layer 23; and a diamond-like carbon layer 24 formed on the diffusion barrier layer 23, the surface roughness of the outermost layer of the diamond-like carbon layer 24 is greater than the surface roughness of the mold base 21. In this embodiment, the mold base 21 is made of tungsten carbide, the adhesion layer 22 is a titanium metal layer, and the diffusion barrier layer 23 is a titanium nitride layer.

[0039] The surface roughness of the molded surface of the mold base in this embodiment is less than 0.05 μm, and the molded surface with this roughness r...

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Abstract

A die is composed of a basic body with a press surface, an adhesive layer, a diffusion isolating layer, and a rough pseudo-diamond film layer. Its advantages are low cost, long service life and high parting performance.

Description

【Technical field】 [0001] The invention relates to a mold, in particular to a mold with a protective layer and a preparation method thereof. 【Background technique】 [0002] Molds are widely used in the molding process, especially in the manufacture of optical glass products, such as aspheric glass lenses, ball lenses, prisms, etc. Direct press-molding technology can be used to directly produce optical glass products without grinding, polishing, etc. Subsequent processing steps can greatly improve production efficiency and output, and the product quality is good. However, the direct compression molding method has higher requirements on the chemical stability, thermal shock resistance, mechanical strength, and surface smoothness of the mold. Therefore, the development of compression molding technology actually mainly depends on the progress of mold materials and mold manufacturing technology. There are generally the following requirements for compression molding molds: [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B11/00
Inventor 颜士杰
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD