Preparation method of automotive interior part leftover material molded part

A technology for automotive interior parts and molded products, which is applied in the field of waste recycling and preparation of automotive interior parts, can solve the problems of pollution and high cost, and achieve the effect of simple process, light weight and large loss

Inactive Publication Date: 2016-11-09
NINGBO HUAYE MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method adopts chemical preparation, which has high cost and pollution.

Method used

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  • Preparation method of automotive interior part leftover material molded part
  • Preparation method of automotive interior part leftover material molded part
  • Preparation method of automotive interior part leftover material molded part

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preparation example Construction

[0037] See Figure 1 to Figure 6 , A method for preparing molded products of automotive interior trim trimmings, comprising:

[0038] (1) Crush the reclaimed leftover materials of automobile interior trim parts to obtain crushed materials;

[0039] (2) The crushed material is heated, melted, and molded, cooled and shaped to obtain a molded product.

[0040] In the step (1), the leftover material of the automobile interior decoration parts is one or two of light-weight GMT and polypropylene hemp felt board.

[0041] In the step (1), the leftover material is thrown into a crusher with a screen mesh diameter of 10mm-40mm for crushing.

[0042] In the step (2), the temperature of the heating and melting molding is 210-230° C., the mold is put into the heating and melting multilayer molding device, and the molten material is folded and put into the press mold for compression molding.

[0043] The structure of the heating and melting molding die includes a metal sizing frame 10 and a release ...

Embodiment 1

[0047] (1) Put the leftover materials of lightweight GMT automotive interior trim parts into a crusher with a screen with a diameter of less than 20mm to obtain crushed materials with a diameter of less than 10mm.

[0048] (2) Weigh 17.5 kg of crushed material and spread it evenly on the heating and melting molding die (lower plate: 3mm stainless steel plate; lower release cloth: 0.65mm thick Teflon cloth; iron frame: length 1900mm*width 800*height 8mm ; Upper release cloth: 0.65mm thick Teflon cloth), such as Figure 4 with 5 Shown.

[0049] (3) Put the mold into the heating and melting multilayer molding device (such as figure 2 As shown), heat for about 10 minutes to make the material temperature reach 220°C, turn on the heating press, uncover the upper and lower release cloth, remove the mold, fold the heated and melted material around to less than the size of the mold, and then put the material in In the 850*850*20mm mold, a closed mold press is used for compression molding, ...

Embodiment 2

[0052] (1) Put the leftovers of light-weight GMT automotive interior trim parts into a crusher with a screen with a diameter of less than 30mm to obtain crushed materials with a diameter of 20mm.

[0053] (2) Put the leftover material of polypropylene fiber felt car interior trim parts into a crusher with a diameter of less than 30mm to crush the material to obtain a material with a diameter of less than 20mm.

[0054] (3) Weigh 17 kg of the mixed materials and spread them evenly on the heating and melting molding die (12mm thick plywood for the lower plate; lower release cloth: 0.65mm thick Teflon cloth; iron frame: length 1900mm*width 1000mm*height 8.5mm; upper release cloth: 0.65mm thick Teflon cloth).

[0055] (4) Put the mold into the heating and melting multi-layer molding device and heat for 9 minutes to bring the material temperature to 225°C, turn on the heating press, uncover the upper and lower release cloth, remove the mold, and fold the material to be smaller than the si...

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Abstract

The invention relates to a preparation method of an automotive interior part leftover material molded part. The method comprises the following steps: (1) crushing reclaimed automotive interior part leftover materials; and (2) hot-pressing, melting and cooling the crushed materials to obtain the molded product. According to the method, the molded product is prepared from the automotive interior part leftover materials, the raw materials are friendly to environment, low in cost and free of secondary pollution, and the molded product is light in mass and high in strength, can be recycled, and has a wide industrial application range and high economic and social values.

Description

Technical field [0001] The invention relates to the field of recycling and preparation of scraps of automobile interior trim parts, in particular to a method for preparing a molded product of scraps of automobile interior trim parts. Background technique [0002] In recent years, automotive interior parts have increasingly used thermoplastic composite materials such as lightweight GMT and polypropylene hemp felt board, and automotive interior parts will produce about 15% of leftovers during the molding process. For example, when the car roof is molded, one week The scraps of about 15 cm and the area of ​​the entire skylight will become scraps. In order to make the car interior more beautiful and comfortable, the surface of the lightweight GMT and polypropylene hemp felt board is compounded with more than 200 grams per square meter of PET non-woven fabric, PU sponge, leather and other heat-insulating, sound-absorbing and decorative layers, making the interior The components of tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/04B29C43/00B29C43/02B29C43/58B29C33/68
CPCB29B17/0026B29B17/0412B29C33/68B29C43/003B29C43/02B29C43/36B29C43/52B29C43/58B29C48/52B29C48/53B29C48/535B29C2043/5816Y02P70/10Y02W30/52Y02W30/62
Inventor 金一平陈子蛟程太品雷飞夏洪涛
Owner NINGBO HUAYE MATERIAL TECH
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