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Paint dipping method for bonding amorphous C type magnetic core by pure resin and special equipment

A kind of special equipment, epoxy resin paint technology, applied in the direction of surface coating liquid device, inductor/transformer/magnet manufacturing, electrical components, etc., to reduce damage and reduce shrinkage stress

Inactive Publication Date: 2010-09-22
FOSHAN CITY ZHONGYAN AMORPHOUS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above method, it is not pure epoxy resin, and it also has the defects

Method used

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  • Paint dipping method for bonding amorphous C type magnetic core by pure resin and special equipment
  • Paint dipping method for bonding amorphous C type magnetic core by pure resin and special equipment
  • Paint dipping method for bonding amorphous C type magnetic core by pure resin and special equipment

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Embodiment Construction

[0022] Such as figure 1 , figure 2 As shown, the special equipment for dipping paint of the present invention includes two sealable containers with lids provided with a heating device. In this embodiment, two sealable containers with lids (tank A, tank B) are arranged in a heatable water tank , Two sealable containers with lids (A tank, B tank) are connected with pipelines, and valves are installed on the pipelines, and two sealable containers with lids (A tank, B tank) are also connected with vacuum and pressurization pipelines .

[0023] The inventive method comprises following processing steps:

[0024] a: prepare first figure 2 For the equipment shown, check whether the air compressor, vacuum pump, hot water device, solenoid valve, and instrument are working normally, and close the K1 and K3 valves.

[0025] b: Heat the hot water tank to the water bath.

[0026] c: Open the cover of oil tank A, add 180Kg and epoxy resin to tank A, and cover the cover of tank A.

[...

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Abstract

The invention discloses a paint dipping method for bonding an amorphous C type magnetic core by pure resin, which is characterized in that the method comprises the following steps of: (a) putting the magnetic core into sealable containers; (b) carrying out vacuum pumping on the containers; (c) pumping pure epoxy resin paint into the containers and immersing the magnetic core; (d) carrying out vacuum pumping on the containers, pressurizing and keeping the pressure to 0.4 to 0.6MPa for 40 to 80 minutes; (e) decompressing and discharging the epoxy resin paint; and (f) taking the dipped magnetic core out of a vat and draining. The heating temperature of the pure epoxy resin paint added in the step (c) needs to be kept to be 60+ / -5 DEG C. The invention also discloses special equipment adopting the method, which comprises two sealable containers with covers, wherein a heating device is also arranged on the two sealable containers with the covers, the two sealable containers with the covers are communicated with a pipeline and are also connected with vacuum pumping and pressurizing pipelines, and a valve is arranged on the pipeline. The process method has the advantages of good paint dipping effect and convenient operation.

Description

technical field [0001] The invention relates to a magnetic core manufacturing process of an amorphous material, in particular to a varnish dipping method for bonding an amorphous C-type magnetic core. Background technique [0002] In the bonding and dipping process of the amorphous C-shaped magnetic core in the prior art, the traditional bonding and dipping process adopted in the industry is: epoxy resin + curing agent + acetone (thinner), prepared in a certain proportion. After this process is bonded and cured, the paint film is relatively hard, and the shrinkage internal stress of the paint film is large, which greatly damages the electromagnetic performance of the magnetic core. In addition, because acetone is extremely volatile, it is impossible to carry out vacuum impregnation operation, and the effect of impregnation is relatively poor. And acetone is a kind of volatile, inflammable and explosive, which has potential safety hazards and is difficult to control in produ...

Claims

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Application Information

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IPC IPC(8): H01F41/02B05D1/18B05C3/09
Inventor 张志臻
Owner FOSHAN CITY ZHONGYAN AMORPHOUS TECH
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