Method for detecting coercive force of armature parts

A detection method and coercivity technology, which are applied in permeability measurement, magnetic property measurement, etc., can solve the problem that the coercivity cannot be realized in the detection of parts samples.

Pending Publication Date: 2022-05-13
CHANGCHUN AVIATION HYDRAULIC CONTROL
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Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention provides a method for detecting the coercive force of armature parts, which can make the structure of the part conform to the structure of the standard sample through the tooling, and solve the problem that the coercive force of the part sample cannot be realized

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  • Method for detecting coercive force of armature parts
  • Method for detecting coercive force of armature parts
  • Method for detecting coercive force of armature parts

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Embodiment Construction

[0029] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0030] The invention utilizes the magnetic performance detection principle of the B-type magnetic permeability meter to realize the measurement of the magnetic performance of the armature type parts.

[0031] Permeameters are used to magnetize open magnetic circuit material samples. Its structure is figure 1 As shown, the parts are arranged in a tool, the overall structure of which is a regular shape. The monolithic structure is clamped between two magnetic yoke pieces and passed through uniformly distributed magnetizing coils. The yoke is made of stacked silicon steel sheets. This mid-field permeameter replaces the Epstein meter to measure the magnetic properties and iron loss of silicon steel sheets, etc., which can save a lot of sample materials, and can easily load and remove samples.

[0032] When a ferromagnetic overall structure sampl...

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Abstract

The invention discloses an armature part coercive force detection method, relates to the field of soft magnetic material testing, enables the structure of a part to meet the structure of a standard sample through a tool, and solves the problem that the coercive force of a part sample cannot be detected. In the detection process, the part is arranged in the tool, the overall structure of the part and the tool is in a regular shape, and the requirement of the magnetic conductance meter for the structure of a detected sample in the detection process is met; a detected part is machined into a rod-shaped, sheet-shaped or annular sample through a tool, a set external magnetic field is applied through detection equipment, and the relation between the external magnetic field H and a detected part B is recorded through a scanning method. According to the detection method, on the basis of the detection principle, by means of an auxiliary tool, the specified standard sample preparation requirement is met as much as possible, detection data are obtained, and part-level magnetic detection is achieved.

Description

technical field [0001] The invention relates to the field of soft magnetic material testing, in particular to a method for detecting coercive force of armature parts. Background technique [0002] In the electro-hydraulic electrical conversion device, the key core action component - the armature, is mostly made of electrical pure iron soft magnetic materials. The magnetic performance parameters of soft magnetic materials are affected by many uncontrollable factors such as their own smelting process, machining parameters and heat treatment process parameters. How to accurately measure the magnetic performance parameters of armature parts, that is, coercive force, is very important for product performance indicators. [0003] At present, the detection of the magnetic properties of soft magnetic materials is limited to the detection of standard samples, that is, the samples of standard shapes such as rod-shaped, sheet-shaped or annular samples are prepared according to relevant...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/12
CPCG01R33/1223
Inventor 马涛李丽许光辉
Owner CHANGCHUN AVIATION HYDRAULIC CONTROL
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