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Injection molding process for PA-GF30 radiator support

A technology of PA-GF30 and radiator bracket, which is applied in the injection molding process field of PA-GF30 material radiator bracket, can solve the problems of low quality of finished products, complicated steps, long cycle and so on, so as to reduce internal stress and improve surface smoothness , reducing the effect of shrinkage variation

Inactive Publication Date: 2016-11-16
WUHU HENGXIN AUTO INTERIOR TRIM COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art in the injection molding process of radiator brackets, such as complex steps, long cycle and high cost, and at the same time, the quality of finished products in the existing technology is not high, and provide a kind of injection molding of PA-GF30 material radiator bracket process, adopting the technical scheme of the present invention makes the injection molding process steps of the radiator bracket simple, the cycle short, and the molding quality of the radiator bracket is excellent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of injection molding process of PA-GF30 material radiator support of the present embodiment, its steps are as follows:

[0032] Step 1. Raw material pretreatment: use an oven to dry the PA-GF30 material at a temperature of 95~105°C for 4 hours;

[0033] Step 2. Equipment pretreatment: heat the barrel of the injection molding machine to 250~290°C, and heat the screw of the injection machine; heat the temperature of the moving mold in the injection mold to 75~80°C, and the temperature of the fixed mold to 80~85°C ℃; In step 2, the heating temperature of the screw of the injection molding machine is divided into 6 sections, and the heating temperature of each part of the screw from the nozzle of the injection molding machine is as follows: 1: 240~260℃; 2: 285~305℃; 3: 280~300℃ ; 4: 280~300℃; 5: 275~295℃; 6: 275~295℃.

[0034] Specifically, in this embodiment, the barrel of the injection molding machine is heated to 250°C, the temperature of the movable mold in the ...

Embodiment 2

[0044] The injection molding process of a PA-GF30 material radiator bracket in this embodiment is basically the same as that of Embodiment 1, the difference is that in this embodiment, the barrel of the injection molding machine is heated to 270 ° C, and the injection mold The temperature of the moving mold is heated to 80°C, and the temperature of the fixed mold is heated to 85°C; in step 4, the injection pressure is 100bar, and the injection speed is 50% of the maximum speed.

Embodiment 3

[0046] The injection molding process of a PA-GF30 material radiator bracket in this embodiment is basically the same as that of Embodiment 1, the difference is that in this embodiment, the barrel of the injection molding machine is heated to 270 ° C, and the injection mold The temperature of the movable mold is heated to 80°C, and the temperature of the fixed mold is heated to 85°C; in step 4, the injection pressure is 95bar, and the injection speed is 45% of the maximum speed.

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PUM

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Abstract

The invention discloses an injection molding process for a PA-GF30 radiator support, and belongs to the field of injection molding. The injection molding process includes the first step of raw material pretreatment, the second step of equipment pretreatment, the third step of plasticizing, the fourth step of injection molding, the fifth step of pressure maintaining, the sixth step of cooling forming and the seventh step of demolding. By means of the technical scheme, the injection molding process for the PA-GF30 radiator support is simple in step and short in cycle, and the molding quality of the PA-GF30 radiator support is excellent.

Description

technical field [0001] The invention relates to the field of injection molding, and more specifically relates to an injection molding process of a radiator bracket made of PA-GF30 material. Background technique [0002] Injection molding is a method of producing shapes for industrial products, and products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding molding method and die casting method. Injection molding machine (referred to as injection machine or injection molding machine) is the main molding equipment for making thermoplastic or thermosetting materials into various shapes of plastic products using plastic molding molds. Injection molding is realized through injection molding machines and molds. [0003] As an important part of the car cooling system, the radiator is installed in the engine compartment of the head of the car by cooperating with the radiator fan. As an important cooling s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C45/77B29K77/00B29K23/00B29K309/08
CPCB29C45/0001B29C45/0025B29C45/77B29K2023/12B29K2077/00B29K2309/08
Inventor 周超群孟祥磊王正雨王冬
Owner WUHU HENGXIN AUTO INTERIOR TRIM COMPANY
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