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Method for manufacturing iron core and iron core product

A manufacturing method and iron core technology, applied in the manufacture of motor generators, electrical components, electromechanical devices, etc., can solve the problems of poor powder fluidity, low compaction density, complex manufacturing process, etc., and achieve high precision in size flexible design, Comprehensive performance improvement, smooth appearance effect

Inactive Publication Date: 2009-12-16
乔智电子股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the iron content of the traditional powdered iron core is low, and the iron powder must first be insulated with phosphoric acid phosphating, and then bonded with ordinary resin. Low compaction density and reduced magnetic properties of the product

Method used

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  • Method for manufacturing iron core and iron core product
  • Method for manufacturing iron core and iron core product
  • Method for manufacturing iron core and iron core product

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Embodiment Construction

[0027] see figure 1 and Figure 2A to Figure 2F , the present invention provides a method for manufacturing an iron core, especially a method for manufacturing a motor stator (or rotor) iron core, comprising the following steps:

[0028] (1) First, provide an appropriate amount of high-purity iron powder 11 (such as Figure 2A shown); in the present embodiment, the high-purity iron powder 11 is iron powder with high magnetic properties, and the granular shape of the iron powder is irregular, and the hammer-type disintegration method is used to ensure that the granular shape is not destroyed and prevent the surface from being damaged. Oxidation, the required particle size is controlled by multi-stage sieving, the average particle size is 1-150 μm, and the average particle size is 100 μm is the best.

[0029] The high-purity iron powder produced by the above process has excellent properties of high bulk density, good fluidity and high compressibility:

[0030] projec...

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Abstract

The invention relates to a method for manufacturing an iron core, comprising the following steps: firstly, providing high-purity iron powder with the iron content of above 99 percent (weight); coating and splicing the high-purity iron powder with high temperature resistant isolating adhesive in an insulating mode; molding the high-purity iron powder into a high-intensity iron core; annealing the iron core; and coating the surface of the annealed iron core in an insulating mode. Therefore, the high-purity iron powder has excellent performances of high fill density, excellent liquidity and large compression. The eddy current loss of the iron core is less than that of the iron core of traditional silicon-steel plates, and the iron core can replace the prior iron core in both performance and cost at high-frequency environment, thereby satisfying the using requirement of motors and ensuring energy-saving effect. The invention also provides an iron core product.

Description

technical field [0001] The invention relates to a manufacturing method of an integrally formed iron core and its products, which are applied to the stator or rotor of a motor for excitation, and are formed by using high-density molding technology, insulating coating and bonding with a high-temperature resistant insulating adhesive The manufacture method of the iron core and its products. Background technique [0002] Conventional motors have components such as a stator and a rotor. The stator core is generally composed of laminated silicon steel sheets, and there are also stator cores made of powdered iron cores. Compared with the traditional laminated silicon steel sheet core, it is integrally formed. The iron core has the advantages of smooth and flat appearance, low eddy current loss, flexible size design, high precision and low cost, and the magnetic characteristics fully meet the requirements of the motor, which has the trend of making the motor design more lightweight ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/00B22F3/00
Inventor 刘兴炜
Owner 乔智电子股份有限公司
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