Locomotive capacitor shell
A technology for capacitors and shells, applied in the field of locomotive capacitor shells, can solve the problems of high scrap rate, increased processing difficulty, and high production costs
Inactive Publication Date: 2011-04-27
TONGLING XINTAI ELECTRIC APP & CAPACITOR
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Problems solved by technology
The former shell is heavy, the production cost is high, it is easy to rust, and it is easy to cause shell breakdown and fire phenomenon. Therefore, it is gradually being replaced by ABS material shell
Although the ABS material shell is light in weight, the wall thickness of the shell made of this material must be more than 5cm, otherwise the deformation resistance temperature is low and it is easy to deform. Once the wall thickness exceeds 5cm, the processing difficulty will increase, and there will be problems during injection molding. Wall shrinkage, the appearance is difficult to meet the requirements, and the scrap rate is high; at the same time, the ABS material has the disadvantage of strong water absorption, which leads to poor insulation performance and poor electric strength of the shell
Method used
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[0009] Locomotive capacitor shell of the present invention is made of polycarbonate material, and the molecular weight of polycarbonate is 1.5 * 10 3 ~2×10 8 .
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The invention relates to a locomotive capacitor shell. The shell is made of polycarbonate materials. The shell is easy for processing, has the advantages of high strength, high heat deformation temperature, difficulty of deformation, high dielectric strength, light weight and low cost and can be suitable for the north and a plateau with extremely high altitude.
Description
technical field [0001] The invention relates to a locomotive capacitor, in particular to a locomotive capacitor shell. Background technique [0002] Capacitors currently used on power locomotives, such as MFO (D) type locomotive electric energy special capacitors, are usually made of stainless steel or ABS engineering plastics. The former shell is heavy, the production cost is high, it is easy to rust, and it is very easy to cause shell breakdown and fire phenomenon. Therefore, it is gradually being replaced by the ABS material shell. Although the ABS material shell is light in weight, the wall thickness of the shell made of this material must be more than 5cm, otherwise the deformation resistance temperature is low and it is easy to deform. Once the wall thickness exceeds 5cm, the processing difficulty will increase, and there will be problems during injection molding. Wall shrinkage, the appearance is difficult to meet the requirements, and the scrap rate is high; at the ...
Claims
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Inventor 孔祥新
Owner TONGLING XINTAI ELECTRIC APP & CAPACITOR