Special grinding fluid for ductile regime lapping of optical glass and preparation method of special grinding fluid

A technology of optical glass and ductile domain, which is applied in the petroleum industry, lubricating compositions, etc., can solve the problems of difficulty and retention, and achieve the effects of reducing difficulty, avoiding human injury, and low pollution

Inactive Publication Date: 2013-03-20
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no special grinding fluid that can modify the surface of optical glass to achieve the grinding of the ductile domain of optical glass. Therefore, the ductile domain grinding technology of optical glass is affected by the technical level of the equipment, and it is very difficult to realize. Most of them are still in the laboratory stage, which seriously limits the further application of optical glass ductile domain grinding technology in various fields of industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing a special grinding fluid for processing optical glass ductility, comprising the following steps:

[0024] (1) Weigh by mass percentage:

[0025] Sodium carbonate 1%, polyethylene glycol with an average molecular weight of 570 1%, triethanolamine 0.5%, potassium tetraborate 0.5%, sodium molybdate 1%, benzotriazole 0.6%, hexamethylenetetramine 0.6% , the balance is water;

[0026] (2) Add sodium carbonate to water at room temperature and stir for 8 minutes;

[0027] (3) Heat the liquid obtained in step (2) to 50°C, and add potassium tetraborate, benzotriazole, hexamethylenetetramine and sodium molybdate in sequence under continuous stirring, each of the above four components The interval time that the components are added is 5 minutes, and after adding the sodium molybdate, continue to stir for 15 minutes;

[0028] (4) Heat the liquid obtained in step (3) to 70°C, and add triethanolamine and polyethylene glycol sequentially under continuous stirr...

Embodiment 2

[0035] A method for preparing a special grinding fluid for processing optical glass ductility, comprising the following steps:

[0036] (1) Weigh by mass percentage:

[0037] Sodium carbonate 7%, polyethylene glycol with an average molecular weight of 630 2%, triethanolamine 0.8%, potassium tetraborate 0.5%, sodium molybdate 0.5%, benzotriazole 1.5%, hexamethylenetetramine 0.4% , the balance is water;

[0038] (2) At room temperature, add sodium carbonate to water and stir for 12 minutes;

[0039] (3) Heat the liquid obtained in step (2) to 60°C, and add potassium tetraborate, benzotriazole, hexamethylenetetramine and sodium molybdate in sequence under continuous stirring, each of the above four components The interval time that the components are added is 8 minutes, and after adding the sodium molybdate, continue to stir for 15 minutes;

[0040] (4) Heat the liquid obtained in step (3) to 80°C, and add triethanolamine and polyethylene glycol sequentially under continuous s...

Embodiment 3

[0048] A method for preparing a special grinding fluid for processing optical glass ductility, comprising the following steps:

[0049] (1) Weigh by mass percentage:

[0050] Sodium carbonate 0.1%, polyethylene glycol with an average molecular weight of 600 0.5%, triethanolamine 0.5%, potassium tetraborate 5%, sodium molybdate 3%, benzotriazole 2%, hexamethylenetetramine 0.1% , the balance is water;

[0051] (2) Add sodium carbonate to water at room temperature and stir for 5 minutes;

[0052] (3) Heat the liquid obtained in step (2) to 50°C, and add potassium tetraborate, benzotriazole, hexamethylenetetramine and sodium molybdate in sequence under continuous stirring, each of the above four components The interval time that the components are added is 5 minutes, and after adding the sodium molybdate, continue to stir for 5 minutes;

[0053] (4) Heat the liquid obtained in step (3) to 70°C, and add triethanolamine and polyethylene glycol sequentially under continuous stirri...

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PUM

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Abstract

The invention discloses a preparation method of a special grinding fluid for ductile regime lapping of optical glass. The preparation method comprises the steps of: at room temperature, adding sodium carbonate in water, stirring; heating, sequentially adding potassium tetraborate, benzotriazole, hexamethylenetetramine and sodium molybdate under the condition of continuously stirring; heating, sequentially adding triethanolamine and polyethylene glycol; and cooling the liquid to room temperature under the condition of stirring, and continuously stirring for 5-30min to obtain the special grinding fluid for ductile regime lapping of optical glass. The grinding fluid prepared by adopting the preparation method has better functions of cooling, lubricating, rust preventing and cleaning, the surface of the optical glass is chemically modified through the components in the grinding fluid, a microcosmic network structure of the optical glass is broken, the physical form of the material surface is changed, the bond energy of a bond is weakened, the hardness of the surface of the optical glass is reduced, the critical grinding depth value of crispness-ductility transformation of the optical glass is increased, and the difficulty in realizing the ductile regime lapping of the optical glass industrially is lowered.

Description

technical field [0001] The invention relates to the technical field of ultra-precision processing and optical processing, in particular to a special grinding fluid for processing the ductile domain of optical glass and its preparation method Background technique [0002] Optical glass has specific optical constants, high transparency, high physical and chemical uniformity, consistency of optical constants, high mechanical strength and thermal stability, chemical stability, heat insulation, low expansion coefficient, low density , corrosion resistance, wear resistance and other characteristics, it has been widely used in aerospace, information, microelectronics, textiles, instruments, chemicals, machinery, military and other fields. With the widening range of its application and the continuous advancement of technology, there are higher and higher requirements for the surface quality, precision and shape of optical glass parts. [0003] Optical glass is a hard and brittle ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10N30/06C10N30/12C10N30/04
Inventor 仇中军杨雪伊萍房丰洲
Owner TIANJIN UNIV
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