A preparation device and preparation method of composite particles for polishing

A composite particle and preparation device technology, which is applied in the direction of grinding/polishing equipment, surface polishing machine tools, grinding devices, etc., can solve the problems of lack of universality, complex abrasive movement, and low polishing efficiency, so as to improve the polishing efficiency. Improve the efficiency and utilization of abrasives, enhance the bonding strength, and solve the effect of low polishing efficiency

Active Publication Date: 2021-05-28
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current magnetorheological polishing fluid, the magnetic particles and the abrasive are separated, the movement of the abrasive is complicated during polishing, the removal efficiency is not high, and it is easy to be squeezed out by the chain structure formed by the magnetic particles, resulting in low polishing efficiency
Some applicants used the liquid phase method to prepare composite particles of abrasive and magnetic particles, so that the abrasive components were generated on the surface of the magnetic particles, but this method is not suitable for chemically stable abrasives such as diamond, and is not universal

Method used

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  • A preparation device and preparation method of composite particles for polishing
  • A preparation device and preparation method of composite particles for polishing
  • A preparation device and preparation method of composite particles for polishing

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Embodiment 1

[0033] like Figure 1 to Figure 4 Shown is the embodiment of the preparation device of the composite particles for polishing of the present invention, including a base 1, a first spraying mechanism 2, a second spraying mechanism 3, a mixing and dispersing mechanism 4, a conveying mechanism 5, and a composite particle group for scraping The scraping mechanism 6, the ball milling mechanism for processing composite particle agglomerates to composite particle powder, and the screening mechanism 7 for screening composite particles within a set size range, the first spraying mechanism 2, the second spraying mechanism 3, the mixing and dispersing mechanism 4, and the conveying mechanism 5 is fixed on the base 1; the first spraying mechanism 2 is filled with magnetic particles coated with a binder on the surface, the second spraying mechanism 3 is filled with abrasives coated with a binder on the surface, and the mixing and dispersing mechanism 4 An input end connected with the first ...

Embodiment 2

[0041] This example is an example of the method for preparing composite particles for polishing of the present invention. The magnetic particles in this example are carbonyl iron powder with a particle size of micron; the abrasive is diamond micropowder with a particle size of submicron. This embodiment includes the following steps:

[0042] S10. Measure 400ml of carbonyl iron powder with a particle size of 3 microns and 400ml of improved UV-curable adhesive (Ailete3342) in equal volumes to form the first mixed solution and add it to the first spraying mechanism 2. Measure 400ml with a particle size of 0.5 micron diamond powder and 400ml improved UV curing adhesive (Ailete 3342) are uniformly mixed in equal volumes to form a second mixed solution that is added to the second spraying mechanism 3, and the first spraying mechanism 2 and the second spraying mechanism 3 are equipped with Fix the clip structure on the high-pressure bottle bracket, adjust and turn on the air pump, ul...

Embodiment 3

[0049] This embodiment is an embodiment of the preparation method of the composite particles for polishing of the present invention. This embodiment is similar to Embodiment 2, the difference is that the particle size of the magnetic particles in this embodiment is submicron, and the abrasive material The particle size is nanoscale. This embodiment includes the following steps:

[0050] S10. Measure 500ml of carbonyl iron powder with a particle size of 1 micron and 500ml of improved UV-curable adhesive (Ailete3525) in equal volumes to form the first mixed solution and add it to the first spraying mechanism 2, and measure 400ml with a particle size of The 50nm diamond micropowder and 400ml improved UV-curable adhesive (Ailete 3525) are evenly mixed to form the second mixed liquid, which is added to the second spraying mechanism 3, and the first spraying mechanism 2 and the second spraying mechanism 3 adopt a clamping structure Fix it on the high-pressure bottle bracket, adjust...

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Abstract

The present invention relates to the technical field of ultra-precision machining, and more specifically, to a preparation device and method for polishing composite particles, in which magnetic particles coated with a binder are input into a mixing and dispersing mechanism through a first spraying mechanism, Abrasives coated with a binder are input into the mixing and dispersing mechanism through the second spraying mechanism, and the mixed liquid after the magnetic particles and abrasives are fully mixed in the mixing and dispersing mechanism is sprayed to the conveying mechanism, and the mixed liquid is solidified during the conveying process Under the action of the mechanism, the composite particle group is rapidly solidified to form a composite particle group, and the composite particle group is scraped off by the scraping mechanism at the end of the conveying mechanism; the composite particle group is transferred to the ball milling mechanism for ball milling to form a composite particle powder, and the composite particle powder is transferred to the screening mechanism for further processing. Magnetic composite particles within a set size range are obtained by screening. The invention combines magnetic particles and abrasives into composite particles, which solves the problem of low polishing efficiency caused by insufficient bonding strength of abrasives in the polishing process.

Description

technical field [0001] The invention relates to the technical field of ultra-precision machining, and more specifically, relates to a preparation device and a preparation method of composite particles for polishing. Background technique [0002] Magneto-rheological polishing technology is a new type of optical surface processing method. It has the advantages that traditional polishing does not have, such as good polishing effect, no sub-surface damage, and suitable for complex surface processing. It has developed into a revolutionary optical surface processing method. , especially suitable for ultra-precision machining of axisymmetric aspheric surfaces. In the magnetorheological polishing technology, the magnetorheological polishing fluid composed of magnetic particles, base fluid, abrasives and additives plays a major role. In the polishing process, abrasives play a major role. In the current magnetorheological polishing fluid, the magnetic particles and the abrasive are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B31/14B03C1/30
CPCB03C1/30B24D18/009
Inventor 潘继生陈志君阎秋生张棋翔
Owner GUANGDONG UNIV OF TECH
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