Method for manufacturing glass fiber reinforced plastic shell through die

A technology of FRP and FRP layers, which is applied in the field of FRP shell production, can solve the problems of difficult molding of FRP shells, affect product quality, and uneven pasting thickness, and achieve the effects of light weight, guaranteed strength, and low cost

Active Publication Date: 2018-07-20
唐山宏正机械设备有限公司
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  • Abstract
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Problems solved by technology

However, it is very difficult to form the FRP shell with smooth inner and outer surfaces, and it is very likely that there will be

Method used

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  • Method for manufacturing glass fiber reinforced plastic shell through die

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[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0031] A method for manufacturing a glass fiber reinforced plastic shell by using a mold according to an embodiment of the present invention includes the following steps:

[0032] (1) Spray coating of the gel coat layer: spray the gel coat layer on the upper and lower mold surfaces of the mold, the thickness of the gel coat layer is between 0.3-0.5mm;

[0033] Specifically, the upper mold and the lower mold are waxed with demoulding wax once and then the gel coat layer is ...

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Abstract

The invention relates to a manufacturing method of a glass fiber reinforced plastic shell, in particular to a method for manufacturing the glass fiber reinforced plastic shell through a die. The method includes the steps of (1) gel coat layer spraying, (2) glass fiber reinforced plastic layer pasting, (3) foam layer splicing, (4) die assembly grinding, (5) final die assembly, (6) post curing, (7)demolding and (8) product paint spraying. According to the method, the die is used for manufacturing the glass fiber reinforced plastic shell, the technological step is simple, and operation is easy;through an up and down die assembly manner, it is guaranteed that the inner and outer surfaces of a molded product are both flat and smooth; through measurement of the thickness of a die cavity in dieassembly grinding, the problems about uneven pasting thickness, pasting missing and the like of the molded product are avoided, and the final molding quality of the molding product is guaranteed; andin addition, the molded product is the glass fiber reinforced plastic product with a foam sandwich, the strength of a driving cab shell is guaranteed, meanwhile, the weight is smaller, and cost is lower.

Description

technical field [0001] The invention relates to a method for manufacturing a glass steel shell, in particular to a method for making a glass steel shell by using a mold. Background technique [0002] At present, some FRP shell products usually require smooth inner and outer surfaces, especially the driver's cab shell of rail vehicles, which can avoid the need to use interior parts to beautify the inner surface of the shell, and the inner surface of the shell product is the interior surface In this way, on the one hand, the beautification process of the interior surface can be omitted, and the production cycle of the product can be shortened; lighter. However, it is very difficult to form the FRP shell with smooth inner and outer surfaces, and it is very likely that there will be problems such as uneven paste thickness, paste voids, and improper mold closing, which will affect the final quality of the product. Therefore, be badly in need of providing a kind of method that u...

Claims

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Application Information

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IPC IPC(8): B29C70/30B29C70/54
CPCB29C70/30B29C70/54
Inventor 李忠志李秀连高瑞浦陈阳赵志伟
Owner 唐山宏正机械设备有限公司
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