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A kind of transformer housing material and its preparation process

A shell material, transformer technology, applied in transformer/inductor shell, inductance/transformer/magnet manufacturing, electrical components, etc., can solve many safety hazards and other problems

Active Publication Date: 2016-06-08
ZAOZHUANG SNKSAN INTELLIGENT MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there are few researches on the transformer shell, but there are more and more potential safety hazards caused by the damage of the shell; in order to ensure the safety of people's production and life, we need to study a corrosion-resistant, mechanically strong and electromagnetic shielding transformer. Functional Transformer Enclosure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A transformer casing material, which is prepared from the following raw materials in parts by weight:

[0018] 1 part of dolomite, 1 part of lithium-based bentonite, 2 parts of molybdenum disulfide, 3 parts of aluminum tripolyphosphate, 5 parts of white graphite, 5 parts of lead sulfate, 8 parts of silicon carbide, 15 parts of magnesium oxide, 20 parts of stainless steel, hydroxide Aluminum 25 parts.

[0019] The preparation method of the above-mentioned shell material comprises the following steps:

[0020] 1) Weighing the raw materials: take the above raw materials according to the weight part for later use;

[0021] 2) Ball milling and stirring: add the raw materials into the ball milling tank one by one, ball mill the raw materials to a diameter of 20 microns, take out the ball milling material, put it in a centrifugal mixer, and stir at a stirring speed of 200 rpm for 10 minutes to obtain a mixture;

[0022] 3) Preparation of green body: Start the resistance melt...

Embodiment 2

[0025] A transformer casing material, which is prepared from the following raw materials in parts by weight:

[0026] 2 parts of dolomite, 2 parts of lithium-based bentonite, 3 parts of molybdenum disulfide, 4 parts of aluminum tripolyphosphate, 6 parts of white graphite, 6 parts of lead sulfate, 10 parts of silicon carbide, 18 parts of magnesium oxide, 25 parts of stainless steel, hydroxide 30 parts of aluminum.

[0027] The preparation method of the above-mentioned shell material comprises the following steps:

[0028] 1) Weighing the raw materials: take the above raw materials according to the weight part for later use;

[0029] 2) Ball milling and stirring: add the raw materials into the ball milling tank one by one, ball mill the raw materials to a diameter of 30 microns, take out the ball milling material, put it in a centrifugal mixer, and stir at a stirring speed of 200 rpm for 10 minutes to obtain a mixture;

[0030] 3) Preparation of green body: Start the resistanc...

Embodiment 3

[0033] The performance test of the shell material prepared in embodiment 1 and embodiment 2, taking the shell material with a plate thickness of 1cm as an example, the tensile strength σ of the plate of embodiment 1 and embodiment 2 b They are 221 and 232 MPa respectively, the elongation δ is 1.27 and 1.23 respectively, the X-ray shielding rate is 85% and 87% respectively, and the shielding rate is more than 99% at 1500MHz.

[0034] The shell material prepared by the above-mentioned examples 1 and 2 was placed obliquely in the 2.5% NaCl solution, and after 4 days, it was taken out with CrO 3 +AgNO 3 +Ba(NO 3 ) 2 + Remove the corrosion products on the surface of the sample with distilled water, then clean with acetone and absolute alcohol, and measure the corrosion rate (mm / a). The corrosion rates of the alloys obtained in the above-mentioned examples are shown in Table 1.

[0035] Numbering

[0036] Conclusion: The transformer shell material prepared by the inve...

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Abstract

The invention belongs to the field of power materials, and discloses a transformer casing material, which is prepared from the following raw materials: dolomite, lithium-based bentonite, molybdenum disulfide, aluminum tripolyphosphate, white graphite, silicon carbide, lead sulfate, stainless steel, Magnesium Oxide, Aluminum Hydroxide. The transformer casing material prepared by the invention has better mechanical performance and electromagnetic radiation shielding performance, better anti-corrosion effect, long service life and high safety performance.

Description

technical field [0001] The invention belongs to the field of power materials, and discloses a transformer shell material and a preparation process thereof. Background technique [0002] Transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The main components are primary coil, secondary coil and iron core (magnetic core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. According to the purpose, it can be divided into: distribution transformers, power transformers, fully sealed transformers, combined transformers, dry-type transformers, oil-immersed transformers, single-phase transformers, electric furnace transformers, rectifier transformers, etc. Transformer products are widely used in industrial and mining enterprises, textile machinery, printing and packaging, petrochemical, schools, shopping malls, elevators, post an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/02H01F41/00
Inventor 陈茂建陈丽红张春轲尤洋吴海涛林刚周艾军王士涛
Owner ZAOZHUANG SNKSAN INTELLIGENT MACHINERY CO LTD