Preparation process of power capacitor shell

A power capacitor and preparation process technology, applied in the field of capacitors, can solve the problems of low temperature resistance, high cost and high melt viscosity, and achieve the effects of good mechanical properties, long service life and reasonable compatibility of raw materials

Inactive Publication Date: 2015-04-08
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many capacitor casing materials, mostly ABS or PC materials, but the capacitor casing made of ABS material has low temperature resistance, and the capacitor casing made of PC material has high cost and high melt viscosity

Method used

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  • Preparation process of power capacitor shell
  • Preparation process of power capacitor shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation process for a power capacitor housing, comprising the steps of:

[0016] Step 1) Weigh each raw material according to parts by weight for subsequent use; wherein, 70 parts of polyphenylene ether resin, 30 parts of styrene-butadiene rubber, 25 parts of low-density polyethylene, 18 parts of polyethylene terephthalate, 15 parts of chlorinated paraffin 12 parts of glyceryl tristearate, 8 parts of polybenzimidazole, 8 parts of ethylene octene copolymer (POE), 6 parts of kaolin, 5 parts of silicon dioxide, 4 parts of white carbon black, 3 parts of talcum powder, 1 part of antimony trioxide, 1 part of potassium zirconium carbonate;

[0017] Step 2) firstly grind kaolin, silicon dioxide, white carbon black and talcum powder into 100-mesh powder respectively, and then mix uniformly to obtain material 1;

[0018] Step 3) polyphenylene ether resin, styrene-butadiene rubber, low-density polyethylene, chlorinated paraffin, glyceryl tristearate, polyethylene terephthal...

Embodiment 2

[0022] A preparation process for a power capacitor housing, comprising the steps of:

[0023] Step 1) Weigh each raw material according to parts by weight for subsequent use; wherein, 80 parts of polyphenylene ether resin, 40 parts of styrene-butadiene rubber, 30 parts of low-density polyethylene, 20 parts of polyethylene terephthalate, 18 parts of chlorinated paraffin 15 parts of glyceryl tristearate, 10 parts of polybenzimidazole, 10 parts of ethylene octene copolymer (POE), 8 parts of kaolin, 7 parts of silicon dioxide, 5 parts of white carbon black, 4 parts of talcum powder, 2 parts of antimony trioxide, 2 parts of potassium zirconium carbonate;

[0024] Step 2) firstly grind kaolin, silicon dioxide, white carbon black and talcum powder into 200-mesh powder respectively, and then mix evenly to obtain material 1;

[0025] Step 3) polyphenylene ether resin, styrene-butadiene rubber, low-density polyethylene, chlorinated paraffin, glyceryl tristearate, polyethylene terephtha...

Embodiment 3

[0029] The performance test of the capacitor case prepared by the process of embodiment 1 and embodiment 2 of the present invention:

[0030] The specific test results are shown in Table 1:

[0031] Table 1

[0032]

[0033]

[0034] Conclusion: The process of the present invention is simple and feasible, and has strong machinability. While effectively maintaining good mechanical properties, the power capacitor shell material prepared by it has greatly improved thermal conductivity, flame retardancy and fire resistance, and greatly reduced shrinkage rate when exposed to cold and heat. , in full compliance with relevant standards, and superior to similar products in the market.

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Abstract

The invention belongs to the technical field of capacitors, and discloses a preparation process of a power capacitor shell. The preparation process comprises the following steps: step (1) weighing a raw material; step (2) preparing a material 1; step (3) heating and melting; step (4) preparing a mixture, and step (5) injection molding. The preparation process disclosed by the invention is easy and feasible, and high in machinability, and the power capacitor shell prepared by the preparation process is good in various properties, and meets relevant standards.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a preparation process of a power capacitor shell. Background technique [0002] Power capacitors, capacitors used in power systems and electrical equipment. Any two metal conductors separated by an insulating medium form a capacitor. The size of the capacitance of the capacitor is determined by its geometric size and the characteristics of the insulating medium between the two plates. When the capacitor is used under AC voltage, its reactive power is often used to represent the capacity of the capacitor, and the unit is var or kvar. [0003] Power capacitors are one of the electronic components widely used in electronic equipment, and are widely used in DC blocking, coupling, bypass, filtering, tuning loops, energy conversion, control circuits, etc. At present, there are many capacitor casing materials, most of which are ABS or PC materials, but the capacitor casing made of...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C08L71/12C08L9/06C08L23/06C08L67/02C08L91/06C08L23/08C08L79/04C08K13/02C08K3/34C08K3/36C08K3/22C08K3/26C08K5/101B29C45/76
Inventor化晨冰石鑫杨博申童刘克升
OwnerSTATE GRID CORP OF CHINA