CN102069062A - Paint dipping process for amorphous CD type iron core - Google Patents

Abstract

The invention discloses a paint dipping process for an amorphous CD type iron core. In the process, E44 epoxy resin, 651 curing agent, acetone and 3131 insulating resin paint are selected as process materials, the formula is optimized, and special processes and steps are adopted. The iron core treated by the paint dipping process has clean appearance, and the original paint nodule scraping process is reduced; the iron core is firm to stick, and diffused sheets are reduced after cutting; and the iron core is not deformed, the condition that the size of the product does not meet the requirement is not caused, and raw material waste can be avoided.

Description

A kind of paint-dipping process of amorphous CD sections core

Technical field

The present invention relates to a kind of paint-dipping process of amorphous CD sections core.

Background technology

At present, manufacturer is in amorphous CD sections core is produced, and production technology mode that product is adopted in the iron core curing process and material use, and have following defective: (1), lamination cohere insecure, and sheet looses in the cutting back.Even jacks also can occur at finished product and peel off, influence the terminal use and use, peel off fragment and be easy to cause the short circuit phenomenon, burn out the equipment complete machine, heavy losses appear; (2), solidification internal stress is big, product cutting back is easy to cause the product distortion owing to discharge stress, does not meet fitted position, increases productions in and reprocesses operation, wastes a large amount of raw material that should not waste; (3), solidify the back product surface and much coat with lacquer knurl, be difficult to cleaning.Stress that produces in the scale removal process and this sound of solidified paint all cause the product magnetic property to descend.

Summary of the invention

The technical problem to be solved in the present invention is, for insecure, the cutting back sheet that looses is cohered in solution, the product distortion influence defective of product magnetic property decline, adopts a kind of paint-dipping process technology of novel amorphous CD sections core, to achieve the above object.

Solution of the present invention is: select E44 epoxy resin, 651 curing agent, acetone, 3131 insulating resins to coat with lacquer as process materials, and the optimization on filling a prescription, and adopt following technology to add the mode step:

(1), with E44 epoxy resin and 651 curing agent according to 1: 0.8 ratio allotment after, add 5 times acetone diluted;

(2), product normal pressure in the good solution of above proportioning was soaked 20 minutes;

(3), product taken out took out 10 minutes with vacuum, the diluent in the product is taken out;

(4), with after the product approval, 170 ℃ the baking 5 hours, allow curing materials solidify fully;

(5), will have cured stereotyped product and from anchor clamps, take out, after the cooling product is put into vacuum tank,

(6), the vacuum pressure container that will install product vacuumize reach-close vacuum valve behind the 0.095MPa;

(7), 3131 insulating resins lacquers put into infusion product in the vacuum tank of dress product, allow it leave standstill 10 minutes after, add 5KG pressure with dry gas, allow product under pressurized state, soak 60 minutes;

(8), the soaked product of above vacuum pressure was dripped lacquer after 10 minutes, with the mode that is hung 165 ℃ of bakings 4 hours down.

The invention has the beneficial effects as follows: earlier with under the very low allotment lacquer gelatinization temperature of a kind of concentration curing being cohered in the simple typing of product, resin does not just have the full iron core of complete filling like this, can make product be subjected to very little stress, the product magnetic property is almost constant, after the product that will as above be cured vacuumizes then, allow a kind of bond strength, the lacquer infusion product that adhesive force is more intense than higher lacquer, product inside also can replenish lacquer enters, and also can hang up lacquer on the surface simultaneously.

Clean by the iron core outward appearance that paint-dipping process like this is handled, reduce original scraping and coated with lacquer the knurl operation; Iron core coheres firmly, seldom occurs the sheet phenomenon of loosing after the cutting; Iron core can not be out of shape, and can not cause the undesirable situation of product size, and raw material can avoid waste.

The specific embodiment

Paint-dipping process according to above-described a kind of amorphous CD sections core, select E44 epoxy resin, 651 curing agent, acetone, 3131 insulating resins to coat with lacquer as process materials, adopt aforementioned technology to add the amorphous CD sections core product that the mode step is produced, solved fully and cohered insecure, the diffusing sheet in cutting back, the product distortion influences the defective that the product magnetic property descends.

Claims (1)

1. the paint-dipping process of an amorphous CD sections core is characterized in that selecting E44 epoxy resin, 651 curing agent, acetone, 3131 insulating resins to coat with lacquer as process materials, the optimization on filling a prescription, and adopt following technology to add the mode step:

(1), with E44 epoxy resin and 651 curing agent according to 1: 0.8 ratio allotment after, add 5 times acetone diluted;

(2), product normal pressure in the good solution of above proportioning was soaked 20 minutes;

(3), product taken out took out 10 minutes with vacuum, the diluent in the product is taken out;

(4), with after the product approval, 170 ℃ the baking 5 hours, allow curing materials solidify fully;

(5), will have cured stereotyped product and from anchor clamps, take out, after the cooling product is put into vacuum tank;

(6), the vacuum pressure container that will install product vacuumize reach-close vacuum valve behind the 0.095MPa;

(7), 3131 insulating resins lacquers put into infusion product in the vacuum tank of dress product, allow it leave standstill 10 minutes after, add 5KG pressure with dry gas, allow product under pressurized state, soak 60 minutes;

(8), the soaked product of above vacuum pressure was dripped lacquer after 10 minutes, with the mode that is hung 165 ℃ of bakings 4 hours down.