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Method and device for anti-deformation loading and bonding of soft magnetic alloy thin ring sheets

A technology of soft magnetic alloys and thin rings, which is applied in the manufacture of inductors/transformers/magnets, furnace types, furnaces, etc., can solve problems such as time-consuming and laborious, low pass rate, and product performance degradation, and achieve bright and smooth products. The effect of high efficiency and uniform product performance

Active Publication Date: 2017-04-19
江苏特威希电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This operation is not only time-consuming and labor-intensive, but also causes a large internal stress in the tablet, resulting in reduced product performance, low pass rate, and increased product manufacturing costs.

Method used

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  • Method and device for anti-deformation loading and bonding of soft magnetic alloy thin ring sheets
  • Method and device for anti-deformation loading and bonding of soft magnetic alloy thin ring sheets
  • Method and device for anti-deformation loading and bonding of soft magnetic alloy thin ring sheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 heat treatment of high magnetic permeability soft magnetic alloy thin ring sheet

[0030] Ring material: 1J85 high magnetic permeability soft magnetic alloy thin ring;

[0031] Ring piece specifications: piece thickness 0.35mm, outer diameter 12.2mm, inner diameter 8.8mm;

[0032] Acid medium used in the treatment: commercially available industrial hydrochloric acid (concentration 25%).

[0033] The first step is to prevent the deformation of the 1J85 soft magnetic alloy thin ring sheet during high temperature annealing. Suspension-type charging device is adopted; the charging method of parallel, neat and vertical stacking is adopted for charging: firstly, 1J85 soft magnetic alloy thin ring pieces 3 coated with anti-bonding MgO powder are sequentially inserted into the material of the vertical charging rack on rod 2 (pin hole 1 must be exposed, such as Picture 1-1 shown). Install multiple material rods according to this procedure, then pick up the material...

Embodiment 2

[0037] Example 2 Carry out heat treatment to the high magnetic permeability soft magnetic alloy thin ring sheet

[0038] Ring piece material, specification and stripping method are similar to Example 1, the difference is:

[0039] 1. When annealing, use a vertical special rack for loading

[0040] This vertical loading special charging rack is composed of charging rod 2, soft magnetic alloy thin ring sheet, charging rack upper plate 4, central column 6, charging rack base 7, and eyelets of the base.

[0041] The loading method adopts the parallel, neat and vertical stacking method: firstly, the 1J85 soft magnetic alloy thin ring pieces 3 coated with anti-adhesive powder are sequentially inserted into the charging rod 2 of the special charging rack for vertical loading, and then the loading The charging rod 2 full of soft magnetic alloy thin ring pieces 3 is vertically inserted into the hole of the base of the special material rack in turn, and then the special charging rack f...

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Abstract

The present invention relates to a material loading method and an apparatus for preventing deformation of a soft magnetic alloy thin ring sheet, and a stripping method and an apparatus after bonding. According to the present invention, an upright or hanging manner is adopted to load on a material rack, the material is placed into a furnace to carry out annealing, and a deformation-free stripping method is performed on the soft magnetic alloy thin ring sheet producing bonding during annealing under immersion in a hot acid medium through acid immersion equipment; and with the method and the apparatus, it can be ensured that the soft magnetic alloy thin ring sheet is bright and flat, and does not have deformation, the product performance is uniform, the one-time qualification rate is high, the total scrap rate is reduced to about 1% from the previous about 25%, and the method is suitable for industrial batch production.

Description

technical field [0001] The invention relates to a method and a device for annealing a metal ring, in particular to a method and a device for preventing deformation of a metal soft magnetic alloy thin ring of an electromagnetic sensor during high-temperature annealing, and a method and a device for preventing deformation during high-temperature annealing, and after high-temperature annealing is bonded Deformation-free stripping method and device. Background technique [0002] The conventional method for high-temperature annealing of soft magnetic alloy thin rings is: first wrap the cleaned material with Al to prevent mutual adhesion at high temperature. 2 o 3 powder, and then flattened or stacked in the heat treatment furnace discharge box (or muffle tank), followed by high-temperature annealing according to the requirements of the process specification. Since the annealing temperature is as high as 1100-1200°C, under the action of various irregular compressive stresses bet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/40C21D1/68C21D1/26H01F41/02
Inventor 石海清吴志新
Owner 江苏特威希电气有限公司