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A method for manufacturing a large-scale high-precision samarium-cobalt magnet

A technology of samarium cobalt magnet and manufacturing method, which is applied in the direction of inductor/transformer/magnet manufacturing, manufacturing tools, magnetic objects, etc., can solve problems such as difficulties, and achieve the effect of overcoming the difficulty of processing

Active Publication Date: 2017-12-01
杭州科德磁业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, as far as the samarium cobalt processing industry is concerned, it is more common to ensure the perpendicularity of 0.01mm for magnets with a thickness of 2-5mm, but it is more difficult to ensure the perpendicularity of 0.01mm for magnets with a thickness of more than 5mm.

Method used

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  • A method for manufacturing a large-scale high-precision samarium-cobalt magnet
  • A method for manufacturing a large-scale high-precision samarium-cobalt magnet
  • A method for manufacturing a large-scale high-precision samarium-cobalt magnet

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Effect test

Embodiment

[0044] Manufacture a samarium cobalt product with an outer diameter of 42±0.01mm, a thickness of 122±0.2mm, a perpendicularity of 0.01mm, a parallelism of 0.01mm, a cylindricity of 0.01mm, radial orientation, and a performance grade of Sm2Co17-34H. The steps are:

[0045] s1) Trimming the six faces of the sintered square blank, and smoothing the six faces of the square blank.

[0046]s2) Mark the two orientation planes of the square blank as A plane and B plane 1 respectively, select two opposite planes from the four planes perpendicular to the orientation plane and mark these two planes as C plane 2 and D respectively noodle.

[0047] s3) Roughly grind C surface 2 and D surface, grind off the scale on these two surfaces, and smooth these two surfaces; draw 2~3 lines perpendicular to the orientation on C surface 2 and D surface The first identification line 5 of the surface.

[0048] s4) Carry out vertical grinding on the A surface and the B surface 1, grind off the scale o...

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Abstract

The invention relates to a manufacturing method for a large-dimension high-precision samarium-cobalt magnet. The manufacturing method comprises the steps of trimming, roughly grinding, vertically grinding, scribing lines, horizontally grinding, assembling and excircle grinding. According to the manufacturing method, assembling and gluing steps are performed; small-dimension products are manufactured firstly; then the small-dimension products are glued into large-dimension products; the problem of difficulty in manufacturing the large-dimension magnet is solved; geometrical tolerance of perpendicularity, depth of parallelism and cylindricity and the like is ensured through the processes of excircle grinding, horizontally grinding and the like; meanwhile, a technological method for marking magnetic pole boundary under a non-magnetic state is provided; and therefore, a feasible manufacturing scheme is provided for products with relatively large dimensions and relatively high requirement on tolerance.

Description

technical field [0001] The invention relates to the field of magnets, in particular to a method for manufacturing a large-scale high-precision samarium-cobalt magnet. Background technique [0002] At present, as far as the samarium cobalt processing industry is concerned, it is more common to ensure the perpendicularity of 0.01mm for magnets with a thickness of 2-5mm, but it is more difficult to ensure the perpendicularity of 0.01mm for magnets with a thickness of more than 5mm. Especially for samarium-cobalt magnets with an outer diameter greater than 40mm and a thickness greater than 100mm, it is even more difficult to effectively mark the magnetic pole boundary under the conditions of ensuring verticality of 0.01mm, parallelism of 0.01mm, cylindricity of 0.01mm and non-magnetic conditions. Contents of the invention [0003] Aiming at the problems existing in the prior art, the object of the present invention is to propose a manufacturing method of a large-scale high-pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/055H01F41/02B24B7/16B24B27/033
CPCB24B7/16B24B27/033H01F1/0555
Inventor 付勇兵杨全福向俊尤杨胜
Owner 杭州科德磁业有限公司
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