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Iron core of transformer wire

A technology for transformers and iron cores, which is applied in the field of manufacturing technology of new transformer cores, can solve the problem that the silicon content of silicon steel is not optimal, and achieve the effects of simplifying the manufacturing process, reducing the hysteresis loss and improving the quality.

Inactive Publication Date: 2008-04-02
郭清林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art, provide a new type of manufacturing process for transformer cores, and solve the problem that the silicon content of silicon steel cannot reach the optimum level.

Method used

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Embodiment Construction

[0008] The process flow of the wire transformer core is as follows:

[0009] 1. Material preparation: Prepare low-silicon wire or low-carbon steel wire with regular geometric cross-section.

[0010] 2. Laying out on the machine: place the prepared wire on the unwinding equipment.

[0011] 3. Cleaning: remove harmful impurities on the surface of the wire.

[0012] 4. Gas siliconizing: Let the wire pass through the continuous heating furnace, heat it to 1000°C in a non-oxidizing atmosphere, then enter the siliconizing area and heat it to 1050-1200°C at a speed of >50°C / min, and then pass through silicon tetrachloride or silane Gas, so that the silicon content of the low-silicon wire reaches about 8%, and the wire after siliconizing passes through the diffusion soaking zone, and is diffused and homogenized in a non-oxidizing atmosphere at about 1200°C.

[0013] 5. Insulation coating: Coat a layer of 5-8μm magnesium oxide insulation layer on the wire through the electrophoretic ...

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Abstract

A transformer core is wound by siliconizing wire. The invention has the advantages of low cost, high magnetic inductivity, low losses, low noise, small temperature rise, light weight, strong commonality of material, good combination property, simple art, low level of difficulty of technique, convenient implementation and application to various power transformers and electronic transformers.

Description

Technical field: [0001] The invention belongs to the technical field of electric appliance manufacturing and relates to a manufacturing process of a novel transformer core. Background technique: [0002] Silicon steel is mainly used to make iron cores of various motors and transformers. It is an indispensable and important soft magnetic alloy in electric power, electronics and military industries. Silicon steel sheets are used in the largest amount among magnetic materials, and are also an important energy-saving metal functional material. [0003] Studies have shown that silicon steel with a silicon content of 6% to 8% has the most excellent soft magnetic properties. This is because the development of ferrite is promoted with the increase of silicon in the alloy, so the initial magnetic permeability and maximum permeability of the steel The magnetic rate also gradually increases, and peaks at 6% to 8%, which greatly reduces the hysteresis loss; when the silicon content is 7...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/24H01F41/02
Inventor 郭清林朱力士宋德民郭胜男宋彬
Owner 郭清林
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