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Magnetorheological fluid special for optical glass polishing and preparation method thereof

A technology of magnetorheological fluid and optical glass, which is applied in the direction of polishing compositions containing abrasives, etc., can solve the problems of subsurface damage and low efficiency of polishing processing, so as to avoid damage to the human body, expand feasibility, and reduce hardness Effect

Inactive Publication Date: 2016-07-13
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the magnetorheological polishing process of optical glass components does not have a special magnetorheological fluid as a polishing medium, resulting in low magnetorheological polishing process efficiency of optical glass, and easily causing subsurface damage. A special magnetorheological fluid for optical glass polishing

Method used

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  • Magnetorheological fluid special for optical glass polishing and preparation method thereof
  • Magnetorheological fluid special for optical glass polishing and preparation method thereof
  • Magnetorheological fluid special for optical glass polishing and preparation method thereof

Examples

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Effect test

Embodiment 1

[0020] A method for preparing a special magnetorheological fluid for optical glass polishing, comprising the following steps:

[0021] (1) Take the following components by weight percentage: 70% of carbonyl iron powder, 10% of diamond particles with a particle diameter of 40 μm, 2% of sodium carboxymethyl cellulose, 2% of sodium carbonate, polyethylene glycol 6001%, Triethanolamine 0.5%, potassium tetraborate 0.5%, benzotriazole 0.6%, hexamethylenetetramine 0.6%, purified water 12.8%;

[0022] (2) At room temperature, add sodium carbonate to water and stir to dissolve; heat, at 60°C, add potassium tetraborate while stirring to dissolve, add benzotriazole to dissolve, add hexamethylenetetra Amine is dissolved, triethanolamine is added to dissolve, polyethylene glycol is added to dissolve;

[0023] (3) The solution obtained in step (2) was cooled to room temperature while stirring, and sodium carboxymethylcellulose was added and stirred for 30 minutes; carbonyl iron powder was ...

Embodiment 2

[0029] A method for preparing a special magnetorheological fluid for optical glass polishing, comprising the following steps:

[0030] (1) Take the following components by weight percentage: 50% of carbonyl iron powder, 10% of diamond particles with a particle diameter of 20 μm, 3% of sodium carboxymethyl cellulose, 1% of sodium carbonate, polyethylene glycol 6002%, Triethanolamine 1%, potassium tetraborate 0.5%, benzotriazole 1.5%, hexamethylenetetramine 0.4%, purified water 30.6%;

[0031] (2) At room temperature, add sodium carbonate to water and stir to dissolve; heat, at 60°C, add potassium tetraborate while stirring to dissolve, add benzotriazole to dissolve, add hexamethylenetetra Amine is dissolved, triethanolamine is added to dissolve, polyethylene glycol is added to dissolve;

[0032] (3) The solution obtained in step (2) was cooled to room temperature while stirring, and sodium carboxymethylcellulose was added and stirred for 20 minutes; carbonyl iron powder was ad...

Embodiment 3

[0039] A method for preparing a special magnetorheological fluid for optical glass polishing, comprising the following steps:

[0040] (1) Take the following components by weight percentage: 30% of carbonyl iron powder, 5% of diamond particles with a particle diameter of 10 μm, 5% of sodium carboxymethyl cellulose, 1% of sodium carbonate, polyethylene glycol 6002%, Triethanolamine 0.5%, potassium tetraborate 1%, benzotriazole 2%, hexamethylenetetramine 1%, purified water 52.5%;

[0041] (2) At room temperature, add sodium carbonate to water and stir to dissolve; heat, at 50°C, add potassium tetraborate while stirring to dissolve, add benzotriazole to dissolve, add hexamethylenetetra Amine is dissolved, triethanolamine is added to dissolve, polyethylene glycol is added to dissolve;

[0042] (3) The solution obtained in step (2) was cooled to room temperature while stirring, and sodium carboxymethylcellulose was added and stirred for 30 minutes; carbonyl iron powder was added u...

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Abstract

The invention discloses a special magnetorheological fluid for optical glass polishing and a preparation method thereof. The special magnetorheological fluid for optical glass polishing is made of the following components: carbonyl iron powder, diamond particles, sodium carboxymethyl cellulose, Sodium carbonate, polyethylene glycol, triethanolamine, potassium tetraborate, benzotriazole, hexamethylenetetramine, and the rest is water. Since water is used as the base fluid, on the basis of ensuring good rheological properties, it can realize the mechanical removal, lubrication, cooling, cleaning, rust prevention, penetration and other properties required by the magnetorheological fluid as a polishing tool, and through the optical The surface modification of glass breaks the micro-network structure of optical glass, weakens the bond energy, and reduces the surface hardness of optical glass, so it can greatly enhance the polishing and removal effect on the surface of optical glass, and reduce the impact of polishing media on the surface and sub-surface of optical glass. Damage, so as to achieve high surface quality, high efficiency, and low-cost polishing of ultra-smooth surface optical glass components.

Description

technical field [0001] The invention relates to the technical fields of ultra-precision processing and optical processing, in particular to a special magnetorheological fluid for optical glass polishing and a preparation method thereof. Background technique [0002] In recent years, with the development of optoelectronic technology, new high-performance, high-precision, and highly integrated optoelectronic systems have emerged. Hard and brittle optical materials represented by optical glass and glass-ceramic have raised high demands on optical processing technology. Require. At present, optical parts with ultra-smooth surfaces have been used in laser gyroscope mirrors, infrared missile modulation discs, filters and sapphire windows, laser nuclear fusion mirrors, astronomical telescope mirrors, and large-scale integrated circuit optics. engraving machine etc. In high-tech weapons supported by photoelectric and optical technologies, optical parts with ultra-smooth surfaces a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09G1/02
Inventor 仇中军高山邹大程房丰洲
Owner TIANJIN UNIV
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