Compound polishing powder for polishing optical elements, preparation method and polishing technology

A technology of optical components and polishing powder, which is applied in the field of polishing molds, can solve the problems affecting the processing quality of zinc selenide optical components, and the polishing molds cannot meet the high-precision requirements, so as to improve the effectiveness, ensure the processing accuracy, and improve the processing quality. The effect of precision

Active Publication Date: 2011-06-01
CHENGDU Z & Z OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardness of the polishing asphalt directly determines the hardness of the polishing mold. The polishing mold made of high-hardness polishing asphalt has a higher hardness, which can effectively ensure the smooth surface shape of the optical processing of ZnSe; however, due to the soft material of ZnSe, If an asphalt polishing mold with a hardness that does not match it is used, a large number of polishing scratches will be generated on the surface of ZnSe optical components, which will seriously affect the processing quality of ZnSe optical components such as smoothness.
Therefore, the prior art uses asphalt polishing molds to polish zinc selenid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, compound polishing powder of optical element and preparation method

[0042] The particle size of the selected chromium oxide powder is 0.05 micron, and the particle size of the aluminum oxide powder is 0.05 micron. The compound polishing powder formula and preparation method of the optical element are as follows: the compound polishing powder is uniformly mixed with 0.5 part of chromium oxide powder and 1.0 part of aluminum oxide powder according to the weight ratio.

[0043] When in use, the compounded polishing powder is added with water to make a suspension. According to the weight ratio, 5.0 parts of compounded polishing powder and 100 parts of water are compounded. The aqueous suspension of the compound polishing powder can be directly injected into the grooves on the surface of the polishing film to be used as abrasives for polishing. Since abrasives and water are incompatible, it is normal for abrasives to settle.

Embodiment 2

[0044] Embodiment 2, compound polishing powder of optical element and preparation method

[0045] The particle size of the chromium trioxide powder is selected to be 0.10 microns, and the particle size of the aluminum oxide powder is 0.10 microns. The compound polishing powder formula and preparation method of the optical element are as follows: 1.0 part of chromium oxide powder and 1.0 part of aluminum oxide powder are uniformly mixed to obtain compound polishing powder in a weight ratio.

[0046] When in use, the compounded polishing powder is added with water to make a suspension. According to the weight ratio, 10.0 parts of compounded polishing powder and 100 parts of water are compounded. The aqueous suspension of the compound polishing powder can be directly injected into the grooves on the surface of the polishing film to be used as abrasives for polishing. Since abrasives and water are incompatible, it is normal for abrasives to settle.

Embodiment 3

[0047] Embodiment 3, compound polishing powder of optical element and preparation method

[0048] The particle size of the selected chromium oxide powder is 0.08 microns, and the particle size of the aluminum oxide powder is 0.08 microns. The formula and preparation method of the compound polishing powder for the optical element are as follows: 2.0 parts of chromium oxide powder and 1.0 part of aluminum oxide powder are uniformly mixed to obtain compound polishing powder in a weight ratio.

[0049] When in use, the compounded polishing powder is added with water to make a suspension. According to the weight ratio, 7.0 parts of compounded polishing powder and 100 parts of water are compounded. The aqueous suspension of the compound polishing powder can be directly injected into the grooves on the surface of the polishing film to be used as abrasives for polishing. Since abrasives and water are incompatible, it is normal for abrasives to settle.

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Abstract

The invention provides a compound polishing powder of a polishing optical element, a preparation method and a polishing process, belonging to expendable material used for polishing the optical element, the preparation method and the polishing process of the polishing powder; wherein, the polishing powder comprises 0.5-3 of Cr2O3 powder and 1 of Al2O3 according to the weight proportion; the granularity of the Cr2O3 powder is ranging from 0.05 microns to 0.10 microns and the granularity of the Al2O3 powder is ranging from 0.05 microns and 0.10 microns; the polishing process comprises the steps as follows: 1) installing polishing formworks for the optical element; 2) filling the polishing powder; 3) arranging a lens disc; 4) fixing the lens disc; 5) rubbing and polishing. The polishing formwork comprises 500 of polishing asphalt and 20-200 of Al2O3 according to the weight parts; in the polishing process, the polishing powder and the polishing formwork can be used for polishing the optical element which is made of zinc selenide, with the surface smoothness of more than 20-10.

Description

technical field [0001] The invention belongs to a consumable material for polishing an optical element, a preparation method, and a polishing process using the polishing powder, especially a polishing mold also involved in the polishing process. Background technique [0002] Zinc selenide precision optical components are precision optical components used in the field of infrared materials. Such precision optical components are especially suitable for cutting-edge technology (such as night vision, homing, navigation, etc.), defense fields (weapons, national security systems, etc.) etc.), laser field (high-power laser, etc.), etc. [0003] In the polishing process of zinc selenide precision optical components, polishing powder should be added. Now people use aluminum oxide powder or other powder such as iron oxide or chromium oxide, that is, a single abrasive is used. The polishing powder is used for polishing, and the applicant cannot achieve an excellent polishing effect on...

Claims

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Application Information

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IPC IPC(8): C09G1/02C09K3/14B24B13/00
Inventor 陈兴建曾贤高
Owner CHENGDU Z & Z OPTOELECTRONICS TECH
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