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Mold core for molding glass

A glass and mold core technology, applied in glass forming, glass pressing, glass manufacturing equipment, etc., can solve the problems of poor adhesion of release film, high price, short service life of mold core, etc., and achieve low cost , high molding times, good molding effect

Inactive Publication Date: 2006-05-17
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the substrate is made of tungsten carbide WC, its price is high, and its adhesion with the release film is not good, so the service life of the mold core is short, which cannot meet the market demand

Method used

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  • Mold core for molding glass

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Embodiment Construction

[0013] see figure 1 , The present invention molds the upper mold core 1 and the lower mold core 2 of glass, and a glass preform 3 is placed between the upper mold core 1 and the lower mold core 2. Because upper mold core 1 and lower mold core 2 have the same structure, only lower mold core 2 is taken as an example. The lower mold core 2 includes a substrate 10 and a release film 30 plated on the substrate 10 .

[0014] The base material 10 is mainly made of silicon carbide (Silicon Carbide, hereinafter referred to as SiC). Because SiC has high hardness and high temperature and high pressure resistance, it can maintain good stability during the molding process.

[0015] The material of release film 30 is platinum Pt and iridium Ir, and its ratio is 1: 1, and it also can adopt palladium Pd and iridium Ir, platinum Pt and rhenium Re or palladium Pd and rhenium Re, and its mixing ratio is 1: 1, The thickness of the release film 20 is in the range of 100nm-1000nm, preferably in t...

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Abstract

The present invention discloses mold core for molding glass, and the mold core includes base material of silicon carbide and strippable film of mixing of Pt and Ir, Pd and Ir, Pt and Re, or Pd and Re in the equal ratio. In order to strength the connection between the strippable film and the base material, one intermediate layer is added. The mold core for molding aspherical glass product has low making cost and effectively prolonged service life.

Description

【Technical field】 [0001] The invention relates to a mold core for molding glass. 【Background technique】 [0002] With the development of imaging products such as digital cameras, people's demand for lenses is increasing day by day. In the prior art, the lens of a digital camera is generally made of glass, and the lens is a spherical lens. Because the spherical lens inevitably produces aberrations, multiple lenses are needed to meet the corresponding performance requirements. The increase in the number increases the volume and weight of the lens and also increases the assembly and manufacturing costs. [0003] In order to reduce the size and manufacturing cost of the lens, some of the existing digital camera lenses use aspherical lenses, which can avoid the spherical aberration caused by the use of spherical surfaces, and use fewer lenses to meet better optical performance. . However, it was difficult to manufacture aspheric lenses in the early stage. With the continuous ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B11/00C03B11/06
CPCC03B11/086C03B2215/12C03B2215/17C03B2215/34
Inventor 陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD