Infrared chalcogenide glass multi-hole aspheric surface mould pressing one-time forming method

Abstract

The invention discloses an infrared chalcogenide glass multi-hole aspheric surface mould pressing one-time forming method, which comprises the steps of firstly, designing an independent mould pressingsystem, sleeving a mould ring on a lower mould of the mould, then integrally putting the mould ring into a mould sleeve, then putting a preformed blank, putting the preformed blank between the lowermould of the mould and the mould ring through a centering tool, then putting the preformed blank into an upper mould of the mould, forming a small mould pressing system, combining each independent mould pressing system with a multi-hole middle meat sleeve, and matching a corresponding number of small mould pressing systems according to the number of holes of the multi-hole middle meat sleeve to form a complete multi-hole one-step forming mould pressing system. According to the method, the problem of low mould pressing efficiency of the infrared chalcogenide glass can be solved, the core takingprocedure can be reduced, the size of the preformed blank is reduced, the mould pressing cost is greatly reduced, larger markets and more profits are brought to enterprises, and the multi-hole integral mould pressing system cannot be affected by damage of one or more sets of single small mould pressing systems.

Description

technical field [0001] The invention relates to the field of optical glass, in particular to a one-time molding method for multi-cavity aspheric surfaces of infrared chalcogenide glass. Background technique [0002] With the continuous improvement of the thermal imaging optical system, the selection of its materials has become more and more stringent, and infrared chalcogenide glass has gradually entered people's field of vision. At present, the single-cavity overflow molding production method is mostly used in the market. It is relatively large, and another core-taking process is required, resulting in high costs and low efficiency, which is far from meeting market demand. Contents of the invention [0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a one-time molding method of infrared chalcogenide glass multi-cavity aspheric surface, and the present invention does not require welding rings and welding, which re...

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Problems solved by technology

[0002] With the continuous improvement of the thermal imaging optical system, the selection of its materials has become more and more stringent, and infrared chalcogenide glass has gradually entered people's field of vision. At present, the single-cavity overflow molding production method is mostly used in the market. Larger size requires another core-taking process, resulting in high cost and low efficiency, which is far from meeting market demand

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