Automobile bottom deflector made of LFT-D (Fiber Reinforce Thermoplastic-Direct) material and manufacture method thereof

A deflector and automobile technology, which is applied to vehicle parts, body, streamlined body, etc., can solve the problems of backward special equipment and low technical level, and achieve the effects of short production cycle, flexible selection and light weight

Inactive Publication Date: 2011-01-05
上海耀华大中新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the domestic LFT-D manufacturing method is still at a low technical level and the special equipment is backward. There are only a small number of products in the development, design and application of LFT-D in domestic auto parts.

Method used

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  • Automobile bottom deflector made of LFT-D (Fiber Reinforce Thermoplastic-Direct) material and manufacture method thereof
  • Automobile bottom deflector made of LFT-D (Fiber Reinforce Thermoplastic-Direct) material and manufacture method thereof
  • Automobile bottom deflector made of LFT-D (Fiber Reinforce Thermoplastic-Direct) material and manufacture method thereof

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Embodiment Construction

[0017] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0018] A car bottom deflector made of LFT-D material and a manufacturing method thereof, the raw materials of the LFT-D are: resin (polypropylene PP), glass fiber (25% to 30% of the total mass of raw materials), additives (resistance flammable agents, antioxidants, adhesion promoters). Wherein, the LFT-D is the abbreviation of Long-Fiber Reinforced Thermoplastic Direct; the polypropylene PP is a thermoplastic resin obtained by polymerizing propylene.

[0019] see figure 1 , figure 2 , the production process of the manufacture of the automobile bottom deflector of the LFT-D material is: the polymer matrix particles (mainly polypropylene PP) and additives are delivered to the gravity mixing metering unit, according to the automobile bottom defl...

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Abstract

The invention relates to an automobile bottom deflector made of an LFT-D (Fiber Reinforce Thermoplastic-Direct) material and a manufacture method thereof. The automobile bottom deflector made of the LFT-D material is directly produced by a raw material jointly comprising glass fibers, PP (Polypropylene) and necessary additives, wherein the formula of the LFT-D raw material can be correspondingly adjusted according to the requirements of products; the average length of the glass fibers in the automobile bottom deflector made of the LFT-D material reaches 25mm; and the density thereof is 2/3 of the density of an SMC (Sheet Molding Compound) material. The LFT-D production process has the advantage of flexible material selection and can be used for adjusting different additives, fiber contents and the fiber length on line so as to meet the requirement of a final product; an LFT-D material product has good mechanical properties and heat resistant properties such as shock resistance, creep resistance, and the like and has light weight; the LFT-D material can be used for producing products with more complicated structures; and semi-finished products in the LFT-D on-line production process are removed, thus the process has the advantages of low raw material and production cost, product recycling and short production period.

Description

technical field [0001] The invention relates to a manufacturing method of an LFT-D material, in particular to an automobile bottom deflector made of an LFT-D material and a manufacturing method thereof. Background technique [0002] At present, lightweight is an important direction of automobile development and an important means of automobile energy saving. The use of plastics and their composite materials to make auto parts has significant advantages such as light weight (density is only 1 / 6 to 1 / 7 of the density of steel), low cost, and easy processing compared with metal materials. It has been widely used, and the most widely used is fiber reinforced composite materials. Compared with other fiber-reinforced materials such as SMC products and GMT products, LFT-D products have high production efficiency, low cost, easy recycling, lighter products (the density is only 1 / 6 to 1 / 7 of the density of steel), and strong performance. Advantages, gradually replacing SMC and GMT,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/04C08K7/14B62D35/02B29C70/42
CPCY02T10/88
Inventor 田静
Owner 上海耀华大中新材料有限公司
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