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Method for manufacturing handle base of car door

A manufacturing method and door technology, applied in sustainable manufacturing/processing, chemical industry, climate sustainability, etc., can solve the problems of high cost and heavy weight, and achieve the effect of saving energy consumption and reducing material cost

Active Publication Date: 2012-07-25
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also disadvantages such as heavy weight and relatively high cost, so there is a need for further improvement

Method used

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  • Method for manufacturing handle base of car door
  • Method for manufacturing handle base of car door
  • Method for manufacturing handle base of car door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: A method for making a car door handle base, using PRET A422-LG40 long glass fiber reinforced polypropylene material to make the car door handle base, specifically comprising the following steps:

[0037] Step 1: Use PRET A422-LG40 long glass fiber reinforced polypropylene material to make the required pellets, and the length of the pellets is 12mm;

[0038] Step 2: drying the pellets, the drying temperature is 90°C, and the drying time is 2 hours;

[0039] Step 3: Put the pellets into the barrel of the injection molding machine to melt, and the heating temperature of the barrel of the injection molding machine is divided into 4 sections, namely: rear section 215°C, middle section 225°C, front section 235°C, nozzle 245°C;

[0040] Step 4: Inject the molten pellets into the mold in two stages for injection molding. In order to ensure the smooth flow of the melt in the mold and avoid the incomplete filling caused by rapid cooling or the excessive temperature ...

Embodiment 2

[0042] Embodiment 2: A method for making a car door handle base, using Ticona Celstran PP-GF30-04 long glass fiber reinforced polypropylene material to make the car door handle base, comprising the following steps:

[0043] Step 1: Use Ticona Celstran PP-GF30-04 long glass fiber reinforced polypropylene material to make the required pellets, with a diameter of 3mm and a length of 12mm;

[0044] Step 2: drying the pellets, the drying temperature is 80°C, and the drying time is 2 hours;

[0045] Step 3: Put the pellets into the barrel of the injection molding machine to melt, and the heating temperature of the barrel of the injection molding machine is divided into 4 sections, namely: rear section 210°C, middle section 220°C, front section 230°C, nozzle 240°C;

[0046] Step 4: Inject the molten pellets into the mold in two stages for injection molding. In order to ensure the smooth flow of the melt in the mold and avoid the incomplete filling caused by rapid cooling or the exces...

Embodiment 3

[0048] Embodiment 3: A method for making a car door handle base, using Sabic StaMaxTM P40YM240 / 10305 long glass fiber reinforced polypropylene material to make the car door handle base, including the following steps:

[0049] Step 1: Use Sabic StaMaxTM P 40YM240 / 10305 long glass fiber reinforced polypropylene material to make the required pellets, with a diameter of 3mm and a length of 12mm;

[0050] Step 2: drying the pellets, the drying temperature is 85°C, and the drying time is 2h;

[0051] Step 3: Put the pellets into the barrel of the injection molding machine to melt, and the heating temperature of the barrel of the injection molding machine is divided into 4 sections, namely: rear section 220°C, middle section 230°C, front section 240°C, nozzle 250°C;

[0052]Step 4: Inject the molten pellets into the mold in two stages for injection molding. In order to ensure the smooth flow of the melt in the mold and avoid the incomplete filling caused by rapid cooling or the exces...

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Abstract

The invention relates to a method for manufacturing a handle base of a car door, in which a LGFRPP (long glass fiber reinforced polypropylene) material is adopted for manufacturing the handle base of the car door. The concrete manufacturing method comprises the following steps: step 1: manufacturing raw material for injection molding the car handle base, and further comprises the steps of mixing modified polypropylene and glass fiber to form the LGFRPP and then co-extruding the LGFRPP, uniformly coating the outer surface of the glass fiber with high polymer resin of polypropylene, cooling and cutting off the LGFRPP after the LGFRPP material is extruded to obtain a granular material which is the raw material, wherein the content of the glass fiber is 30% to 40%; step 2: carrying out oven-drying the raw material; step 3: putting the raw material into a charging barrel of an injection molding machine to melt; and step 4: dividing the melted raw material into two segments and injecting the two segments into a mold for molding, and obtaining the handle base after cooling and demolding. The manufacturing method provided by the invention has the beneficial effects of meeting the requirements for product size, structure and function while reducing weight and cost and significantly saving energy consumption in production.

Description

technical field [0001] The invention belongs to the field of automobile manufacturing and relates to a method for manufacturing a car door handle base. Background technique [0002] At present, the vast majority of door handles are made of plastic. Due to the subsequent need for electroplating or spraying processes, plastic materials with better post-treatment effects are generally used. Commonly used are: PC+ABS, PC+PBT, ABS, PC+PA, etc. The matching door handle base is generally made of engineering plastics such as nylon (PA) because it is a non-appearance part. This type of handle base on the market is mainly: PA6-GF30, PA66-GF30 or PBT-GF30. [0003] The base of the door handle uses the above-mentioned engineering plastics such as nylon (PA) or PBT, which has the advantage of having better mechanical properties (tensile strength, bending strength, bending modulus, etc.) than general-purpose plastics. However, there are also disadvantages such as heavy weight and relati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C45/76B29B13/06C08L23/12C08K7/14
CPCY02P20/10
Inventor 武胜军杨宇威刘安策魏超苏立杰
Owner BEIJING ELECTRIC VEHICLE
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