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Battery shell molding process

A battery case and molding technology, which is applied in the field of battery case molding technology, can solve the problems of complex process, complex mold, heavy weight, etc., and achieve the effect of simple manufacturing process, simple mold and short processing procedure

Active Publication Date: 2019-08-16
鸿泰佛吉亚复合材料(武汉)有限公司
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  • Description
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  • Application Information

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Problems solved by technology

The battery box of an electric vehicle is the power source. In the prior art, the battery case outside the battery box is mostly made of iron or aluminum through stamping, extrusion, casting and other technologies, while iron or aluminum is used to make The resulting battery case is heavy and requires complex molds, and the manufactured battery case also needs anti-corrosion treatment, which is a complicated process

Method used

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Embodiment Construction

[0020] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0021] Please refer to Figure 1 to Figure 2 , the battery casing molding process of the embodiment of the present invention specifically includes the following steps:

[0022] Step a) Cut and weigh the SMC raw material to obtain several SMC raw material sheets that meet the weight requirements, adjust the parameters of the press, set the core temperature to 145°C, set the mold clamping pressure to 480t, and set the cavity temperature Set it to 150°C, set the holding time to 240s, and lay the SMC raw material on the core. Generally speaking, the holding time for a product with a thickness of 1mm is 60 seconds. The thickness d1 of the main body of the battery case is 3mm. The edge thickness d2 means the maximum thickness is 5mm. When the holding time is 180 seconds, there may be a phenomenon that the part that is too thick is not ...

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Abstract

The invention relates to a battery shell molding process. The battery shell molding process differs in that the method comprises the following steps of step (a), laying an SMC raw material sheet on acore; step (b), closing a die, applying pressure and maintaining pressure; step (c) when the pressure maintaining time reaches 235s, starting air blowing to a cavity, when the pressure maintaining time reaches 240s, ending pressure maintaining, and starting to blow air to a core while continuing to blow air to the cavity, wherein the air blowing pressure of the core and the cavity ranges from 0.4Kpa to 0.7 Kpa; stopping air blowing to the cavity when the pressure maintaining ending time reaches 17s; and stopping air blowing to the core when the pressure maintaining ending time reaches 18s; (d) opening the die; and (e) taking out a molded battery shell, placing the molded battery shell on a shaping tool, and blowing air to the battery shell to shape and cool the battery shell. The batteryshell manufactured by the invention has the advantages of light weight, corrosion resistance and simple process flow.

Description

technical field [0001] The invention relates to the field of battery case processing, in particular to the molding process of the battery case. Background technique [0002] As an important new energy vehicle, electric vehicles are increasingly recognized by the market. The battery box of an electric vehicle is the power source. In the prior art, the battery case outside the battery box is mostly made of iron or aluminum through stamping, extrusion, casting and other technologies, while iron or aluminum is used to make The resulting battery case is heavy and requires complex molds, and the produced battery case also needs anti-corrosion treatment, which is a complicated process. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the prior art and provide a molding process for battery casings, the manufactured battery casings are light in weight and corrosion-resistant, and the process flow is simple. [0004] In or...

Claims

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Application Information

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IPC IPC(8): B29C51/08B29C51/42B29C51/44
CPCB29C51/08B29C51/427B29C51/44
Inventor 孙海明曹清华付洋李鹏黄栋华
Owner 鸿泰佛吉亚复合材料(武汉)有限公司
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