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Manufacturing method of SMC sheets for upper shell of new energy battery composite material

A technology of composite materials and production methods, which is applied in applications, household components, household appliances, etc., can solve the problems of lower yield, easy cracks, etc., and achieve the effect of preventing strength decline and suppressing pressure rise

Pending Publication Date: 2019-03-22
SHANGHAI CHAOHUI VENTILATION & ENVIRONMENT PROTECTION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the stamping process, especially the bending of the upper shell is prone to cracks, thereby reducing the yield

Method used

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  • Manufacturing method of SMC sheets for upper shell of new energy battery composite material
  • Manufacturing method of SMC sheets for upper shell of new energy battery composite material
  • Manufacturing method of SMC sheets for upper shell of new energy battery composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Such as figure 1 As shown, the upper casing 100 includes a bottom 110 and a side wall 120 erected from the periphery of the bottom 110 . Wherein, the bottom 110 is circular, square or triangular, etc., and the sidewall 120 is a ring structure matching the shape of the bottom 110 .

[0029] Such as figure 2 As shown, the mold made of SMC sheets for the upper casing of the new energy battery composite material includes an upper mold 200 and a lower mold 300, and the SMC sheet 400 is placed between the upper mold 200 and the lower mold 300, and passes through the upper mold 200 and the lower mold Die 300 is pressed relative to punching, so that SMC sheet 400 is formed as figure 1 The structure of the upper casing 100 described above.

[0030] A concave portion 210 is provided on the surface of the upper mold 200 opposite to the lower mold 300, and a convex portion 310 is provided on the surface of the lower mold 300 opposite to the upper mold 200. Refer to image 3 , ...

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Abstract

The invention discloses a manufacturing method of SMC sheets for an upper shell of a new energy battery composite material. The manufacturing method of the SMC sheets for the upper shell of the new energy battery composite material comprises the following steps that step one, a mould is heated, and an upper mould and / or a lower mould is heated; step two, layer laying is carried out, and the SMC sheets are placed between the upper mould and the lower mould; and step three, mould assembly is carried out, and rapid mould assembly of the upper mould and the lower mould are carried out. Movable pressure discharging blocks opposite to the SMC sheets are arranged on the upper mould and / or the lower mould. The movable pressure relief blocks increase the direction of the SMC sheet moving, the rising of pressure in the SMC sheets is restrained, and the situation that cracks are formed due to the reduction of the strength of the upper shell after formation is effectively prevented.

Description

technical field [0001] The invention belongs to the field of battery casings, and in particular relates to a method for manufacturing an SMC sheet used for an upper casing of a new energy battery composite material. Background technique [0002] SMC is the abbreviation of Sheet Molding Compound, and its material is glass fiber reinforced unsaturated polyester resin material, which is widely used, such as instrument panel, engine cover, air conditioner, battery and other shells. The processing technology of these products is usually injection molding through molding molds, and some parts usually have built-in inserts in some parts of the product to enhance the strength of the parts. [0003] The patent number is CN201510982178.5, and the patent name is an invention patent for a process method for a light-weight electric vehicle battery pack upper shell, which discloses that the shell forming die is installed on the workbench of the punching machine, and the shell forming die ...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29C33/00B29L31/34
CPCB29C33/00B29C70/345B29L2031/7146
Inventor 沈余良蒋雪华
Owner SHANGHAI CHAOHUI VENTILATION & ENVIRONMENT PROTECTION EQUIP