Polishing composition, a method for producing same, and magnetic polishing method

A composition and magnetic grinding technology, which is applied in the direction of manufacturing tools, grinding devices, grinding machine tools, etc., can solve problems such as safety problems, reduced grinding performance of grinding compositions, and insufficient effects

Active Publication Date: 2017-08-01
FUJIMI INCORPORATED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the polishing compositions disclosed in Patent Documents 1 and 2, iron powder as magnetic particles is oxidized in the polishing composition due to contact with water, etc., so that the polishing performance of the polishing composition decreases over time. The problem
In addition, hydrogen gas is generated due to the oxidation of iron powder, so there is also a problem in terms of safety
[0005] Patent Documents 3 and 4 disclose the technique of coating the surface of magnetic particles with a protective layer such as a polymer material in order to suppress the oxidation of magnetic particles, but the effect cannot be said to be sufficient.
In addition, since the magnetic particles are covered with a protective layer, there is a problem of cost and effort.

Method used

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  • Polishing composition, a method for producing same, and magnetic polishing method
  • Polishing composition, a method for producing same, and magnetic polishing method
  • Polishing composition, a method for producing same, and magnetic polishing method

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Embodiment Construction

[0025] One embodiment of the present invention will be described in detail. In addition, although the following embodiment shows an example of this invention, this invention is not limited to this embodiment. In addition, various changes and improvements can be added to the following embodiments, and the forms to which various changes and improvements have been added can also be included in the present invention.

[0026] The polishing composition of the present embodiment contains magnetic particles, an antioxidant for suppressing oxidation of the magnetic particles, and water. When a magnetic field is applied to the polishing composition of the present embodiment, the magnetic particles functioning as abrasive grains are arranged in chains along the lines of magnetic induction to form magnetic particle clusters. Since the magnetic particle cluster functions as a polishing tool, the polishing composition of the present embodiment can be used in a magnetic polishing method. ...

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Abstract

The present invention relates to a polishing composition, a method for producing the same, and a magnetic polishing method. The present invention provides a polishing composition in which magnetic particles are less likely to be oxidized and a magnetic polishing method. The polishing composition (1) contains magnetic particles, an antioxidant for suppressing oxidation of magnetic particles, and water. A magnetic field is applied to the polishing composition (1) to form a magnetic particle cluster (3) containing magnetic particles, so that the particle cluster (3) contacts a to-be-ground object (5) and grinds the to-be-ground object (5).

Description

technical field [0001] The present invention relates to a polishing composition, a manufacturing method thereof, and a magnetic polishing method Background technique [0002] A magnetic polishing method is known as a polishing method (for example, mirror finishing) for finishing the surface of a material with high precision. The magnetic grinding method is a grinding method using a slurry obtained by mixing non-magnetic abrasive grains in a functional fluid such as a magnetic fluid, a magnetic viscous fluid, a magnetic mixed fluid, etc. that react in a magnetic field as a grinding composition, A magnetic field is applied to the polishing composition to form magnetic particle clusters, and the magnetic particle clusters are brought into contact with an object to be polished as a polishing tool to perform polishing. [0003] For example, Patent Document 1 discloses a magnetic polishing method using a polishing composition containing magnetic particles, abrasive particles, a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00C09K3/14
CPCB24B37/00C09K3/14B24B1/005C09K3/1463
Inventor 玉田修一森永均菱田翔太安井大祐
Owner FUJIMI INCORPORATED
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