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Wearing layer-possessing mould core and its preparation method

A wear-resistant layer and mold core technology, used in glass pressing, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of poor wear resistance and short service life of mold cores, and increase the number of repeated compression molding. The effect of prolonging the service life and good wear resistance

Inactive Publication Date: 2006-05-10
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0016] In order to solve the problem of poor wear resistance and short service life of the mold core in the prior art, the purpose of the present invention is to provide a mold core with good wear resistance and long service life and its preparation method

Method used

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  • Wearing layer-possessing mould core and its preparation method
  • Wearing layer-possessing mould core and its preparation method
  • Wearing layer-possessing mould core and its preparation method

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Embodiment Construction

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] see figure 1 , the present invention provides a mold core 10 for molding aspheric optical glass products, which includes a mold core base 101 and a wear-resistant layer 103 formed on the molding surface 102 of the mold core base 101 . The thickness of the wear-resistant layer 103 is in the range of 20 nm to 200 nm.

[0038] The mold core base 101 can be manufactured by sintering the following ceramic cermets or superhard alloys as main materials: SiC, Si, Si 3 N 4 , ZrO 2 、Al 2 o 3 , TiN, TiO 2 , TiC, B 4 C, WC, W or WC-Co.

[0039] The wear-resistant layer material 103 includes SiC, WC, Si 3 N 4 , TiN, BCN, Pt, Ir, Os, Re, Rh, and Pd.

[0040] Preferably, the thickness of the wear-resistant layer is in the range of 50 nm to 100 nm.

[0041] The molding surface 102 of the mold core base 101 needs to correspond to the shape of the aspheric o...

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Abstract

The invention provides a die kernel with wearing coat used for pressing glass product, which contains a die kernel matrix with pressing panel; and a wearing coat covering the pressing panel, whose thickness is within range of 20nm to 200nm. The wearing coat can improve the wear resistance of said die kernel effectively. The invention also provides a method for preparation of die kernel with said wearing coat.

Description

【Technical field】 [0001] The invention relates to a mold core for molding optical glass, in particular to a mold core with a wear-resistant layer and a preparation method thereof. 【Background technique】 [0002] Mold cores 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 or polishing Waiting for subsequent processing steps can greatly improve production efficiency and output, and the product quality is good. However, the direct compression molding method has very high requirements on the chemical stability, thermal shock resistance, mechanical strength, and surface smoothness of the mold core. Therefore, the development of compression molding technology actually mainly depends on the progress of mold core material and mold core manufacturing technology. There are gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B11/06
CPCY02P40/57
Inventor 陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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