Transformer sound insulation shell material and preparation method thereof

A shell material and transformer technology, applied in the field of materials, can solve problems such as increasing the cost of transformers, and achieve the effects of improving impact strength, good insulation and thermal conductivity, and optimizing water resistance

Inactive Publication Date: 2015-11-18
STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, reducing the magnetic flux density of the iron core is often used to reduce the noise generated by the iron core, but this will greatly increase the cost of the transformer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The specific steps of the preparation method of the transformer sound-insulating shell material are as follows:

[0014] 50 parts of phenolic resin, 20 parts of epoxy resin, 30 parts of glass fiber, 10 parts of nitrile rubber, 3 parts of polyvinyl chloride resin, 20 parts of hollow microspheres, 5 parts of expanded vermiculite, 20 parts of calcium carbonate, diatomaceous earth 5 parts, 3 parts of silicone oil, and 0.5 parts of antioxidant were added to the container, stirred at a speed of 1600r / min for 15 minutes, mixed evenly, added 1 part of dichloromethane and continued to stir for 5 minutes, and finally added 1 part of acetic acid, and stirred at a speed of 2000r / min Stir at a high speed for 5 minutes, pour the uniformly mixed raw materials into the mold, solidify at 65°C for 60 minutes, cool and demould to obtain the transformer sound insulation shell material.

Embodiment 2

[0016] The specific steps of the preparation method of the transformer sound-insulating shell material are as follows:

[0017] 60 parts of phenolic resin, 30 parts of epoxy resin, 40 parts of glass fiber, 20 parts of nitrile rubber, 10 parts of polyvinyl chloride resin, 30 parts of hollow microspheres, 10 parts of expanded vermiculite, 30 parts of calcium carbonate, diatomaceous earth 10 parts, 10 parts of silicone oil, and 1 part of antioxidant are added to the container, stirred at a speed of 1900r / min for 20 minutes, mixed evenly, added 3 parts of dichloromethane and continued to stir for 10 minutes, and finally added 3 parts of acetic acid, and stirred at a speed of 2200r / min Stir at a high speed for 10 minutes, pour the uniformly mixed raw materials into the mold, solidify at 75°C for 80 minutes, cool and demould to obtain the transformer sound insulation shell material.

Embodiment 3

[0019] The specific steps of the preparation method of the transformer sound-insulating shell material are as follows:

[0020] 55 parts of phenolic resin, 25 parts of epoxy resin, 35 parts of glass fiber, 15 parts of nitrile rubber, 5 parts of polyvinyl chloride resin, 25 parts of hollow microspheres, 8 parts of expanded vermiculite, 25 parts of calcium carbonate, diatomaceous earth 8 parts, 8 parts of silicone oil, and 0.8 parts of antioxidant are added to the container, stirred at a speed of 1800r / min for 18 minutes, mixed evenly, added 2 parts of dichloromethane and continued to stir for 8 minutes, and finally added 2 parts of acetic acid, and stirred at 2100r / min Stir at a high speed for 8 minutes, pour the uniformly mixed raw materials into the mold, solidify at 70°C for 70 minutes, cool and demould to obtain the transformer sound insulation shell material.

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PUM

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Abstract

The invention discloses a transformer sound insulation shell material and a preparation method thereof, which belong to the field of materials and solve the problem of poor sound insulation effect of existing materials. The preparation method specifically comprises the following steps of adding bakelite, epoxy resin, glass fibers, chemigum, polyvinyl chloride resin, cenosphere, expanded vermiculite, calcium carbonate, diatomaceous earth, silicone oil and antioxygen into a container, stirring for 15 to 20 minutes at the rotating speed of 1600 to 1900 r/min, uniformly mixing, then adding dichloromethane, continuously stirring for 5 to 10 minutes, adding acetic acid at last, stirring for 5 to 10 minutes at the rotating speed of 2000 to 2200 r/min, pouring raw materials which are uniformly mixed into a mold, solidifying for 60 to 80 minutes at the temperature of 65 to 75 DEG C, cooling and demolding, so as to obtain the transformer sound insulation shell material. The preparation method has the advantages of simplicity, easiness in operation and low production cost and can be widely used for transformer shell and case materials.

Description

technical field [0001] The invention relates to a transformer sound-insulating shell material and a preparation method thereof, belonging to the field of materials. Background technique [0002] Transformer is a common electrical equipment. When the transformer is working, it often produces relatively large noise due to the vibration of the iron core and coil. With the development of the economy and society, the electricity load continues to increase, and more and more substations are located in urban areas. The problem of noise pollution from transformers is also highlighted. The noise generated by transformers will not only cause environmental pollution, but also interfere with and affect people's lives. Work and study, etc.; but also endanger human health, such as hearing loss, headache, dreaminess, memory loss, and affect children's intellectual development. At present, reducing the magnetic flux density of the iron core is often used to reduce the noise generated by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L63/00C08L9/02C08L27/06C08L83/04C08K13/02C08K7/14C08K7/22C08K3/34C08K3/26
Inventor 张振民苏永义张庆伟李文峰巩固王海
Owner STATE GRID SHANDONG ELECTRIC POWER
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