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A kind of production technology of pentaprism

A production process, pentaprism technology, applied to prisms, manufacturing tools, glass molding, etc., can solve problems such as improper control of softening temperature, complicated processing technology, and non-compliance of pentaprisms, so as to shorten processing time and save labor costs Effect

Active Publication Date: 2016-03-16
成都恒达光学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a production process of a pentaprism, which solves the problems that the existing processing technique is complicated and the softening temperature is not controlled properly, which causes the pentaprism to fail to comply with the regulations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of production technique of pentaprism, comprises the following steps:

[0026] (1) Cut the raw material into small pieces of glass blanks by cutting machine;

[0027] (2) Grinding the corners of the glass blank;

[0028] (3) Coating the surface of the glass blank with powder, the powder being boron nitride;

[0029] (4) Send the powder-coated glass blank into the softening furnace for softening;

[0030] (5) Pressing the softened glass blank in the pressing mold to form the initial product;

[0031] (6) Anneal the initial product, and the annealing temperature is 15°C lower than the softening point of the glass;

[0032] Among them, the temperature of the softening furnace is divided into six sections, and the specific temperatures from the entrance to the exit are: 700°C, 780°C, 780°C, 780°C, 820°C, and 920°C.

[0033] In addition, after the annealing is completed, inspection is required to eliminate unqualified products.

Embodiment 2

[0035] A kind of production technique of pentaprism, comprises the following steps:

[0036] (1) Cut the raw material into small pieces of glass blanks by cutting machine;

[0037] (2) Grinding the corners of the glass blank;

[0038] (3) Coating the surface of the glass blank with powder, the powder being boron nitride;

[0039] (4) Send the powder-coated glass blank into the softening furnace for softening;

[0040] (5) Pressing the softened glass blank in the pressing mold to form the initial product;

[0041] (6) Anneal the initial product, and the annealing temperature is 15°C lower than the softening point of the glass;

[0042] Among them, the temperature of the softening furnace is divided into six sections, and the specific temperatures from the entrance to the exit are: 705°C, 785°C, 785°C, 785°C, 825°C, and 925°C.

[0043] In addition, after the annealing is completed, inspection is required to eliminate unqualified products.

Embodiment 3

[0045] A kind of production technique of pentaprism, comprises the following steps:

[0046] (1) Cut the raw material into small pieces of glass blanks by cutting machine;

[0047] (2) Grinding the corners of the glass blank;

[0048] (3) Coating the surface of the glass blank with powder, the powder being boron nitride;

[0049] (4) Send the powder-coated glass blank into the softening furnace for softening;

[0050] (5) Pressing the softened glass blank in the pressing mold to form the initial product;

[0051] (6) Anneal the initial product, and the annealing temperature is 15°C lower than the softening point of the glass;

[0052] Among them, the temperature of the softening furnace is divided into six sections, and the specific temperatures from the entrance to the exit are: 695°C, 775°C, 775°C, 775°C, 815°C, and 915°C.

[0053] In addition, after the annealing is completed, inspection is required to eliminate unqualified products.

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Abstract

The invention discloses a pentaprism production process which solves the problem that a pentaprism does not meet requirements as an existing machining process is complicated and softening temperature is improperly controlled. The pentaprism production process includes the steps: (1) cutting raw materials into small glass blanks by a cutting machine; (2) grinding corners of the glass blanks; (3) coating boron nitride powder on the surfaces of the glass blanks; (4) feeding the coated glass blanks into a softening furnace for softening; (5) profiling the softened glass blanks in a profiling mould to form an initial product; (6) annealing the initial product. The annealing temperature is 10-20 DEG C lower than a glass softening point. The cutting machine is used for cutting the raw materials, the same sizes and weights of the glass blanks are effectively ensured, so that division and rolling procedures are decreased, manpower cost is greatly saved, and machining time is shortened.

Description

technical field [0001] The invention relates to a production process of a pentaprism. Background technique [0002] At present, when the pentaprism is processed, it is cut manually, resulting in different sizes and weights of the small glass blanks after cutting. Therefore, it is necessary to divide and roll the materials after cutting. The purpose is to ensure that each glass blank has the same size and the same weight, but the above-mentioned processing technology undoubtedly increases the process and labor costs; in addition, the existing processing technology does not properly control the temperature when softening the glass blank. As a result, the degree of softening is insufficient, or the degree of softening is excessive, so that the glass blank cannot be pressed into a pentaprism that meets the requirements during the subsequent molding process. Contents of the invention [0003] The purpose of the present invention is to provide a production process of a pentapri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/04C03B33/00C03B11/00
Inventor 张冰
Owner 成都恒达光学有限公司
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