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Water-based magnetic auxiliary polishing liquid, preparation method thereof and magnetorheological polishing liquid

A polishing liquid, water-based technology, applied in polishing compositions containing abrasives, etc., can solve the problem of not meeting the rust prevention of magnetic media or the suspension stability of polishing liquid, and cannot meet the requirements of magnetic-assisted polishing technology for liquid performance, Unable to meet the problems of rust prevention and stability of removal efficiency, and achieve the effect of good magnetic medium rust protection ability, stable material removal efficiency and good anti-settling performance

Inactive Publication Date: 2019-03-29
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

The traditional magnetic field-assisted precision polishing is to transfer the force of the magnetic field to the magnetic fluid to the polishing disc (rubber pad) for optical processing; the advantage of this method is that the material removal is stable, and the disadvantage is that the polishing efficiency is low
The magnetic polishing method uses the mutual friction between the magnetic powder brush formed by the coalescence of magnetic polishing powder in the magnetic field and the workpiece to polish the workpiece; the advantage of this method is that the removal efficiency is high, and the disadvantage is that the surface of the processed workpiece is relatively Rough, easy to produce lower surface damage layer, can not be used for processing precision optical components
[0003] In the prior art, patent ZL201210264841.4 discloses a polishing liquid for aluminum alloy materials. By adding thickeners and corrosion inhibitors, the problems of surface corrosion and oxidation during the polishing process of aluminum alloys are improved, but the thickener content Too high, not suitable for magnetically assisted polishing liquid low viscosity, recycling requirements
Patent ZL201610703063.7 discloses a preparation method of water-based nano-polishing liquid. Although it has the advantages of strong dilution ability and fast heat dissipation during polishing, it cannot satisfy the stability of rust prevention and removal efficiency during the use of magnetic powder media in the magnetic-assisted polishing process.
At the same time, the patent ZL201610579870.8 announced a composite polishing liquid, which solves the corrosion of the polishing liquid on the equipment under acidic conditions, but adding an oxidant will accelerate the oxidation rate of the iron powder during the magnetic-assisted polishing process, resulting in unstable polishing efficiency.
[0004] In addition, patents such as CN101671528A, CN102516876A, US2002032987, US2002151252, ZL201310731761.X, etc. are applicable to silicon polishing liquids, which also cannot meet the requirements of the magnetic-assisted polishing technology for the liquid due to the lack of antirust of the magnetic medium or the suspension stability of the polishing liquid. performance requirements

Method used

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  • Water-based magnetic auxiliary polishing liquid, preparation method thereof and magnetorheological polishing liquid
  • Water-based magnetic auxiliary polishing liquid, preparation method thereof and magnetorheological polishing liquid

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preparation example Construction

[0035] The specific embodiment of the present invention also provides a kind of preparation method of above-mentioned water-based magnetic assisted polishing liquid, and described preparation method comprises steps:

[0036] Step 1: adding the thickener into deionized water in parts by mass, and stirring for the first time at the first temperature to obtain the first solution;

[0037] Step 2: adding the water-based corrosion inhibitor to the first solution in parts by mass, and stirring for the second time at the second temperature to obtain the second solution;

[0038] Step 3: adding the dispersant to the second solution in parts by mass, and stirring for the third time at a third temperature to obtain a third solution;

[0039] Step 4: adding the emulsifier to the third solution in parts by mass, and stirring for the fourth time at a fourth temperature to obtain the fourth solution;

[0040] Step 5: adding the antiseptic to the fourth solution in parts by mass, and stirri...

Embodiment 1

[0060] Prepare a water-based magnetic-assisted polishing solution, the polishing powder is: cerium oxide, the particle size is 3 μm, and the mass is 200 g. The composition of the water-based composite carrier liquid is: deionized water 3000ml, thickener sodium carboxymethylcellulose 20g, water-based corrosion inhibitor sodium tripolyphosphate 15g, dispersant polysodium methacrylate 50g, emulsifier tween 80, mass 80g, preservative sodium benzoate 1g, antifoaming agent silicon polyether 0.5g, pH regulator sodium carbonate 15g.

[0061] The specific preparation steps are as follows:

[0062] Step 1. Add 20g of sodium carboxymethylcellulose into 3000ml of deionized water and stir for 3 hours. The speed of the disperser is set to 1000r / min, and the temperature is controlled at 60°C.

[0063] Step 2. Add 15g of water-based corrosion inhibitor sodium tripolyphosphate to the solution obtained in step 1, and stir with a stirrer for 2 hours. The speed of the stirrer is set to 400r / min,...

Embodiment 2

[0071] A water-based magnetic-assisted polishing solution was prepared, and the polishing powder was: diamond micropowder with a particle size of 0.5 μm and a mass of 100 g. The composition of the water-based composite carrier liquid is: 2000ml of deionized water, 10g of sodium polyacrylate, 10g of water-based corrosion inhibitor ammonium citrate, 40g of dispersant sodium dodecylbenzenesulfonate, 80g of emulsifier polyethylene glycol, preservative Sodium benzoate 0.8g, antifoaming agent silicon polyether 0.5g, pH regulator sodium hydroxide 10g.

[0072] The specific preparation steps are as follows:

[0073] Step 1. Add 10g of sodium polyacrylate into 2000ml of deionized water and stir for 3 hours. The speed of the disperser is set to 1000r / min, and the temperature is controlled at 60°C.

[0074] Step 2. Add 10g of water-based corrosion inhibitor ammonium citrate to the solution obtained in step 1, and stir for 2 hours with a stirrer, the speed of the stirrer is set at 400r / m...

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Abstract

The invention relates to the technical field of optical precision processing and manufacturing, and particularly discloses a water-based magnetic auxiliary polishing liquid, a preparation method thereof and a magnetorheological polishing liquid. The water-based magnetic auxiliary polishing liquid comprises the following raw materials: in parts by weight, 80-90 parts of deionized water, 0.5-1 partof a thickener, 0.5-1 part of a water-based corrosion inhibitor, 1-2 parts of a dispersant, 2-3 parts of an emulsifier, 0.5-1 part of a pH adjuster, 0.01-0.02 part of an antifoaming agent, 0.05-0.1 part of a preservative and 5-10 parts of polishing powder. Through the water-based magnetic auxiliary polishing liquid, the dispersion stability of the polishing powder particles can be ensured for a long time, and no corrosion to the magnetic powder medium is ensured during operation; and the preparation method of the water-based magnetic auxiliary polishing liquid has a simple process, and the obtained magnetic auxiliary polishing liquid has high polishing efficiency and high stability of material removal, and has the advantages of environmental protection, easy cleaning and circulation.

Description

technical field [0001] The invention relates to the technical field of optical precision machining and manufacturing, in particular to a water-based magnetically assisted polishing fluid, a preparation method and a magnetorheological polishing fluid. Background technique [0002] As early as the early 1980s, some people in Japan applied magnetic fields to optical processing, forming magnetic media assisted polishing. It is mainly divided into several methods such as magnetorheological polishing, magnetic fluid assisted polishing, magnetic field assisted precision polishing, and magnetic polishing. The traditional magnetic field-assisted precision polishing is to transfer the force of the magnetic field to the magnetic fluid to the polishing disc (rubber pad) for optical processing; the advantage of this method is that the material removal is stable, and the disadvantage is that the polishing efficiency is low. The magnetic polishing method uses the mutual friction between t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09G1/02
CPCC09G1/02
Inventor 白杨邓伟杰薛栋林张学军
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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