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Glass fiber reinforced polypropylene composite material, engine intake manifold and automobile

A glass fiber and composite material technology, applied in engine components, machines/engines, mechanical equipment, etc., can solve the problems of high material density, complex reinforcement and modification processes, and high nylon prices, to simplify the processing process and shorten the processing. Time and cost saving effect

Inactive Publication Date: 2018-07-24
BAIC MOTOR CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the dimensional stability of nylon is average, the shrinkage rate is large, and the performance of ethylene glycol resistance is not good. At the same time, its water absorption is high. The intake manifold is usually processed with modified nylon materials, such as glass fiber reinforced nylon. For example, the current commercial intake manifold material is PA6-GF30 (30% glass fiber reinforced nylon 6), although the above shrinkage can be improved to a certain extent rate and other issues, but the material density is still high, which is not conducive to the realization of automobile lightweight
Moreover, due to the high price of nylon, the process of reinforcing and modifying it is relatively complicated, thus increasing the raw material cost and processing cost of the intake manifold material

Method used

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  • Glass fiber reinforced polypropylene composite material, engine intake manifold and automobile
  • Glass fiber reinforced polypropylene composite material, engine intake manifold and automobile
  • Glass fiber reinforced polypropylene composite material, engine intake manifold and automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This example provides a glass fiber reinforced polypropylene composite material (referred to as PP-GF35), the components of which are shown in Table 1.

[0050] The group distribution ratio of table 1PP-GF35

[0051]

[0052] The preparation method of the above-mentioned glass fiber reinforced polypropylene composite material includes: firstly adding the components other than glass fiber into the mixer according to the ratio requirements in Table 1 and fully mixing, then adding the obtained mixture to the screw extruder Heating and melting in the machine, the temperature is about 170°C; then adding glass fiber to the screw extruder for melting and mixing, the extrusion temperature of each section (from the barrel to the machine head) is about 200°C, and the barrel temperature of the first section is relatively high. The low temperature is 150°C, and the temperature of the machine head is 190°C. Finally, the black granular glass fiber reinforced polypropylene composit...

Embodiment 2

[0054] This example provides a glass fiber reinforced polypropylene composite material (referred to as PP-LGF30), the components of which are shown in Table 2.

[0055] Table 2 Component distribution ratio of PP-LGF30

[0056]

[0057] The preparation method of the above-mentioned glass fiber reinforced polypropylene composite material includes: first, adding the components other than glass fibers into the mixer according to the ratio requirements in Table 2 and fully mixing, and adding the obtained mixture to the screw extruder Heating and melting in the machine, the temperature is about 175°C; then adding glass fiber to the screw extruder for melting and mixing, the extrusion temperature of each section (from the barrel to the head) is about 205°C, and the barrel temperature of the first section is relatively high. The low temperature is 160°C, and the temperature of the machine head is 200°C. Finally, the black granular glass fiber reinforced polypropylene composite mate...

Embodiment 3

[0068] With the glass fiber reinforced polypropylene composite material (PP-GF35) in embodiment 1 as raw material, manufacture engine intake manifold, specifically comprise the steps:

[0069] (1) The black granular raw material is directly inhaled into the screw of the injection molding machine for heat treatment without being dried, and after the raw material is gradually softened into a liquid state, it is sprayed into the mold for injection molding, and the injection molding can be completed to obtain the intake manifold Fragmentation, where:

[0070] The injection molding temperature is 210°C-230°C, the pressure is about 70bar-80bar (7.0MPa-8.0MPa), and the holding time is 5S. Specifically, the corresponding temperature data at the four sensing zones and nozzles of the injection molding machine can be found in Table 5.

[0071] (2) After the injection molding is completed, open the mold, take out the prepared intake manifold segments from the mold, and cool to about 25°C...

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Abstract

The invention provides a glass fiber reinforced polypropylene composite material, an engine intake manifold and an automobile. The glass fiber reinforced polypropylene composite material comprises thefollowing components in parts by weight: 45-60 parts of polypropylene resin, 20-45 parts of glass fibers, 1-2.5 parts of an antioxidant, 0.5-1.5 parts of a lubricating agent, 5-10 parts of a compatilizer, 8-15 parts of a flexibilizer and 0.5-1.5 parts of a light stabilizer. The invention further provides a preparation method of the composite material and a method for manufacturing the engine intake manifold by adopting the composite material. The glass fiber reinforced polypropylene composite material not only can meet the performance requirements of the engine intake manifold, but also has very small density and low cost, easily realizes the light weight of an engine and the automobile and reduces the cost of the engine and the automobile.

Description

technical field [0001] The invention relates to the technical field of high molecular polymers and the field of automobile parts manufacturing, in particular to a glass fiber reinforced polypropylene composite material, an engine intake manifold and an automobile. Background technique [0002] The engine intake manifold is one of the key components of the engine. Its core function is to smoothly provide sufficient and uniform mixture for each cylinder of the engine. Therefore, the engine intake manifold is a key factor affecting engine power and fuel consumption. Reducing the density of the engine intake manifold is beneficial to reduce the weight of the engine, thereby reducing the weight of the vehicle; reducing the cost of the engine intake manifold can also further reduce the manufacturing cost of the vehicle. [0003] Due to the working environment and other reasons, the performance requirements of the engine intake manifold are much higher than other auto parts, so the...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L53/00C08L51/06C08L23/16C08L23/14C08L23/08C08K13/04C08K7/14F02M35/104
CPCC08K2201/004C08L23/12C08L2205/035F02M35/10321F02M35/104C08L53/00C08L51/06C08L23/16C08K13/04C08K7/14C08L23/14C08L23/0853
Inventor 孙江曼张文博
Owner BAIC MOTOR CORP LTD
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