A Secondary Pressing Technology of Fluorophosphate Optical Forming Glass

Abstract

The invention discloses a secondary molding process of fluorophosphate optical molding glass. The steps of the method are as follows. Step 1: Carry out machine-cut strips on raw materials, and heat-cut them to form material blocks by adopting a hot-cutting process; Step 2: Use rolling The material process will eliminate sharp edges and vertices to form a sphere-like material block; step 3, when the weight of the material block approaches the product weight, then perform grinding treatment; step 4, quickly pass the material block through the uniformly heated softening furnace softening in the softening zone; Step 5, performing hot-press molding through a mold; Step 6, performing annealing treatment to eliminate or reduce the thermal stress in the optical glass to an allowable value. Compared with the prior art, the present invention solves the technical problem that the fluorophosphate optical molding glass is difficult to be processed by secondary molding, and solves the problem of rapid wear and tear of the rolling material and the inconspicuous modification of the edges and corners, resulting in sharp edges and corners of the material block and wrinkling of the surface of the material block. The problem of ball breaking / column breaking and bursting has greatly improved the yield.

Description

Technical field [0001] The present invention relates to an optical glass field, and more particularly to a secondary pressurizing process of a fluorophosphate optically formed glass. Background technique [0002] Fluorophosphate optics glass relative to conventional optical glass, the technical content is very high, the secondary pressure type processing process is complex, and there are many difficulties in the formation process technology, resulting in quite low, unable to mass production, can not meet the market Demand, this is a technical issue that has not been solved in the art. With the rapid development of optoelectronic products, high-quality optical glass demand such as fluorophosphate is increasing. To ensure that the H-ZPK5 fluorophosphate optics glass product reaches the secondary pressure type product drawings, improve the product material utilization. The technical difficulties need to be solved are: the rolling wear faster angular modification does not significant...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a technical problem that solves the technical problem that the fluorophosphate optical molding glass is difficult to be processed by secondary molding, and proposes a secondary molding process for the new type of fluorophosphate optical molding glass.

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