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Manufacturing method of lead-acid storage battery cover with strong corrosion resistance

A lead-acid battery and a manufacturing method technology, applied in the direction of battery cover/end cover, battery box/jacket, etc., can solve the problems of structural and mechanical damage, reduce weather resistance, etc., and achieve simple operation, excellent sealing performance, and uniform color. Effect

Pending Publication Date: 2022-04-12
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the punching of fiber-reinforced composite structural parts is easy to cause structural and mechanical damage, mechanical processing destroys the surface resin layer of the composite product and reduces the weather resistance of the product

Method used

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  • Manufacturing method of lead-acid storage battery cover with strong corrosion resistance

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Comparison scheme
Effect test

Embodiment 1

[0023] A strong corrosion-resistant lead-acid battery cover prepared by the present invention, a certain model is 500mm long, 300mm wide, and 30mm thick. The battery cover has 6 pole holes with a diameter of Φ70; 4 water-cooling tube holes with a diameter of Φ25 ; 4 threaded holes with a diameter of Φ40. The steps of the manufacturing method are mold preparation, insert preparation, sheet material preparation, sheet material laying, molding, mold lifting, parts repairing and post-curing in sequence.

[0024] This product uses SMC sheet of vinyl resin / glass fiber system as raw material, and adopts SMC molding process to manufacture lead-acid battery cover. The battery cover has good appearance, uniform color, no defects such as pores and cracks, and has strong acid corrosion resistance. 3 ) The service life in the steam environment is more than 5 years.

[0025] A method for manufacturing a battery cover, comprising the steps of:

[0026] Step 1, install the female mold 2 an...

Embodiment 2

[0035] A strong corrosion-resistant lead-acid battery cover prepared by the present invention. A certain type of lead-acid battery cover is 600mm long, 300mm wide, and 30mm thick. The battery cover has 12 pole holes with a diameter of Φ50; 4 water-cooling tube holes , the aperture is Φ15; 3 threaded holes of different sizes, the aperture is Φ60, Φ30, Φ25. The steps of the manufacturing method are mold preparation, insert preparation, sheet material preparation, sheet material laying, molding, mold lifting, parts repairing and post-curing in sequence.

[0036] This product uses SMC sheet of vinyl resin / glass fiber system as raw material, and adopts SMC molding process to manufacture lead-acid battery cover. The battery cover has good appearance, uniform color, no defects such as pores and cracks, and has strong acid corrosion resistance. 3 ) The service life in the steam environment is more than 5 years.

[0037] A method for manufacturing a battery cover, comprising the step...

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Abstract

The invention discloses a manufacturing method of a high-corrosion-resistance lead-acid storage battery cover, which sequentially comprises the following steps of: preparing a mold, preparing an insert, preparing a sheet material, paving the sheet material, carrying out mold pressing, lifting the mold to take out a part, repairing a flash and carrying out post-curing. 6-12 pole holes which are uniformly distributed in two rows, 2-4 water cooling pipe holes and one or more threaded holes are formed in the storage battery cover, and at least one threaded hole is formed in the middle of the storage battery cover; the SMC sheet of the vinyl resin / glass fiber system is used as the raw material, the SMC compression molding process is adopted for manufacturing the lead-acid storage battery cover, the method is easy to operate, the prepared product is good in appearance, uniform in color and luster and free of defects such as air holes and cracks, meanwhile, the lead-acid storage battery cover has the high acid liquid corrosion resistance, and the service life of the lead-acid storage battery cover is prolonged. And the service life in a 50 DEG C sulfuric acid solution (1.32 g / cm < 3 >) steam environment is as long as more than 5 years.

Description

technical field [0001] The invention belongs to the technical field of resin-based composite materials, and in particular relates to a method for manufacturing a strong corrosion-resistant lead-acid battery cover. Background technique [0002] Most of the traditional lead-acid battery covers are made of plastic injection molding, or the new energy battery covers are similar to the plate structure, which is molded. With the development of manufacturing materials, in order to improve the strength, corrosion resistance and service life of lead-acid battery covers, SMC molded composite materials are gradually applied to the design of battery covers. [0003] At present, the composite material molded by SMC molding compound of vinyl resin / glass fiber system has high specific strength, good corrosion resistance, fire resistance and flame retardancy, which just meets the material requirements of lead-acid battery shells, and SMC compression molding is An efficient and batch produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54H01M50/147
Inventor 韩霞程浩尚保仁张凯王亚飞
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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