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Processing technology of metal strip for assembling iron core of electronic transformer

An electronic transformer and processing technology, applied in metal processing equipment, circuits, electrical components, etc., can solve the problem of high scrap rate, achieve the effect of reducing scrap rate, good quenching and tempering effect, and improving flexibility

Inactive Publication Date: 2019-10-01
湖南金子山电子科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The silicon steel strip processed in this way is hard and brittle, and the scrap rate is high when it is wound into an iron core

Method used

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  • Processing technology of metal strip for assembling iron core of electronic transformer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The metal strip processing technology for electronic transformer core assembly includes the following steps:

[0020] (1) Ingredients: Weigh each raw material according to the silicon steel strip formula: 94.3% iron, 5.0% silicon, 0.2% boron, 0.3% copper, 0.2% nickel, the sum of the contents of each component is 100%;

[0021] (2) Smelting: Add the raw materials into the intermediate frequency induction furnace in the order of iron, nickel, silicon, copper, and boron according to the specific gravity of the ingredients for smelting. As the furnace heats up, the maximum melting temperature is 1600°C. After holding for 2 hours, vacuumize for 10 minutes , cooled to 800°C by water to obtain a smelted block;

[0022] (3) Secondary melting: Put the primary smelting block processed in step (2) into another intermediate frequency induction furnace for secondary melting. The temperature of the secondary melting is 1400°C. After holding for 2 hours, vacuumize for 10 minutes to ob...

Embodiment 2

[0027] The metal strip processing technology for electronic transformer core assembly includes the following steps:

[0028] (1) Ingredients: Weigh each raw material according to the silicon steel strip formula: 95.8% iron, 3.5% silicon, 0.25% boron, 0.2% copper, 0.25% nickel, the sum of the contents of each component is 100%;

[0029] (2) Smelting: Add the raw materials into the intermediate frequency induction furnace in the order of iron, nickel, silicon, copper, and boron according to the specific gravity of the ingredients, and then smelt them. As the furnace heats up, the maximum melting temperature is 1500°C. After holding for 1 hour, vacuumize for 5 minutes. , cooled to 700°C by water to obtain a smelted block;

[0030] (3) Secondary melting: Put the primary smelting block processed in step (2) into another intermediate frequency induction furnace for secondary melting. The temperature of the secondary melting is 1300°C. After holding for 1 hour, vacuumize for 5 minute...

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Abstract

The invention discloses a processing technology of a metal strip for assembling an iron core of an electronic transformer. The processing technology comprises the steps of preparing materials, smelting the materials, carrying out secondary melting, casting the melting liquid, coiling the metal strip and the like. According to the processing technology of the metal strip, due to the processes of secondary melting, instant cooling to normal temperature and the like, the flexibility of the steel strip can be effectively improved, so that the steel strip is hard and not brittle, and the rejectionrate is reduced to be less than 4% when the steel strip is coiled into the iron core.

Description

technical field [0001] The invention relates to the field of electronic transformer manufacturing equipment, in particular to a metal strip processing technology for electronic transformer iron core assembly. Background technique [0002] The electronic transformer is more and more widely used, and its main component iron core is made of silicon steel strip. The current silicon steel strip processing technology generally includes batching, smelting, pouring, forming and other processes. The silicon steel strip processed in this way is hard and brittle, and the scrap rate is high when it is wound into an iron core. Contents of the invention [0003] In view of the deficiencies of the above-mentioned prior art, the present invention proposes a metal strip processing technology for assembling the iron core of an electronic transformer, so as to reduce the reject rate. [0004] In order to achieve the above-mentioned purpose, the solution of the present invention: a metal st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/16C22C38/08C22C33/04B22D11/06B22D41/00H01F1/147
CPCB22D11/0611B22D41/00C22C33/04C22C38/02C22C38/08C22C38/16C22C38/32H01F1/14766
Inventor 刘伟向明朗
Owner 湖南金子山电子科技股份有限公司
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