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Long glass fiber reinforced polypropylene resin engine skid plate of passenger vehicle

A polypropylene resin and long glass fiber technology, applied in the direction of deflectors, etc., can solve the problems of unsatisfactory weight reduction, cost reduction, material recyclability, narrow recycling range, and bulky parts, etc., so as to save procurement materials and plate preheating process, light weight, low cost effect

Inactive Publication Date: 2011-03-23
FAW GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The engine bottom guard plate of Xiaohongqi series vehicles is made of UPGF (SMC) material, which has problems such as bulky parts, high cost and narrow recycling range of UPGF (SMC) material (currently it can only be used as filler), which cannot meet the weight reduction requirements , reduce costs and increase material recyclability requirements

Method used

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  • Long glass fiber reinforced polypropylene resin engine skid plate of passenger vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] First, polypropylene: 78, glass fiber: 22, weigh and prepare materials according to parts by weight, and extrude long glass fiber reinforced polypropylene resin (LFT) through a general-purpose extruder at an extrusion temperature of 115°C.

[0019] According to the shape and size of the bottom guard plate, the weight and size of the required LFT sheet are calculated, and the long glass fiber reinforced polypropylene resin LFT molten sheet code material is directly cut from the extrusion port of the specific extruder.

[0020] Then put the cut long glass fiber reinforced polypropylene resin LFT molten sheet into the mold according to the predetermined method. Once placed, the mold is closed immediately, the mold temperature is normal temperature, the mold pressure is 22MPa, the holding time is 18sec, and the molding cycle is 40sec. In order to prevent product deformation, the product just out of the mold should be placed reasonably, if necessary, it can be placed on a si...

Embodiment 2

[0022] First, polypropylene: 75, glass fiber: 25, weigh and prepare materials according to parts by weight, and extrude long glass fiber reinforced polypropylene resin (LFT) through a general-purpose extruder at an extrusion temperature of 249°C.

[0023] According to the shape and size of the bottom guard plate, the weight and size of the required LFT sheet are calculated, and the long glass fiber reinforced polypropylene resin LFT molten sheet code material is directly cut from the extrusion port of the specific extruder.

[0024] Then put the cut long glass fiber reinforced polypropylene resin LFT molten sheet into the mold according to the predetermined method. Once placed, the mold is closed immediately, the mold temperature is normal temperature, the mold pressure is 22MPa, the holding time is 18sec, and the molding cycle is 40sec. In order to prevent product deformation, the product just out of the mold should be placed reasonably, if necessary, it can be placed on a si...

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Abstract

The invention relates to a long glass fiber reinforced polypropylene resin engine skid plate of a passenger vehicle, which is characterized in that the engine skid plate is prepared by using the long glass fiber reinforced polypropylene resins as a raw material through the steps of fusing the long fiber reinforced thermoplastics (LFT) into sheets; putting the obtained sheets into a mould for 40sec at the normal temperature according to a preset method; and carrying out mold stripping, wherein the pressure of the mould is 22MPa, and the pressure keeping time of the mould is 18sec. Because the whole forming process of the engine skid plate is implemented only through a single heating course, the energy consumption is low; meanwhile, the intermediate links such as storing, transporting and preheating prepreg materials are reduced, therefore, the energy consumption and manual work are saved, and the production cost is low.

Description

Technical field: [0001] The invention relates to a long glass fiber reinforced polypropylene resin passenger car engine bottom guard plate. Background technique: [0002] The bottom guard plate of the engine has the functions of preventing the abnormally raised ground from directly colliding with the engine, isolating the mud and gravel from the ground from being involved in the engine bearing belt, and the air-conditioning compressor, etc., and helping the lower part of the engine to form a stable airflow to reduce the high-speed running noise produced. [0003] The engine bottom guard plate of Xiaohongqi series vehicles is made of UPGF (SMC) material, which has problems such as bulky parts, high cost and narrow recycling range of UPGF (SMC) material (currently it can only be used as filler), which cannot meet the weight reduction requirements , Reducing costs and increasing the recyclability of materials. Invention content: [0004] The purpose of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R19/54C08L23/12C08K7/14B29C69/02B29C47/14B29C43/02B29C43/58B29K309/08B29K23/00B29K105/08B29C48/305
Inventor 杨兆国江梅张明远任晓珊王力杨江雄
Owner FAW GROUP
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