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High-impact-resistance automobile front bumper and injection molding process thereof

A front bumper, impact-resistant technology, applied in other household appliances, household components, applications, etc., can solve the problems of poor impact resistance and energy absorption, endangering the safety of passengers, and bumper deformation, etc., to achieve impact resistance. The effect of strong, good surface gloss and excellent protective performance

Active Publication Date: 2021-05-28
常州鑫凯车辆部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the raw materials of automobile bumpers in the current market are mainly polyester and polypropylene. Although this kind of material makes the bumper have resilience and protection, its impact resistance and energy absorption effect when it is hit Poor, mostly when the bumper is hit in an accident, it will directly cause the bumper to deform or break, thus endangering the safety of the passengers

Method used

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  • High-impact-resistance automobile front bumper and injection molding process thereof
  • High-impact-resistance automobile front bumper and injection molding process thereof
  • High-impact-resistance automobile front bumper and injection molding process thereof

Examples

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Effect test

preparation example Construction

[0039] The preparation method of anti-impact thickening glue is:

[0040] A1. Put a certain amount of boric acid in a heating tank, heat at 160°C for 2 hours, then add an appropriate amount of hydroxy silicone oil and silicon dioxide, stir evenly and put it in an oven for baking;

[0041] A2. Take it out after baking for 2-4 hours. After the product is cooled to a suitable temperature, add a certain amount of isopropanol, mix evenly, and after cooling completely, you can make an impact-resistant thickening glue.

Embodiment 1

[0043] A kind of automobile front bumper with strong impact resistance designed by the present invention, the raw materials of the automobile front bumper are composed by weight: 60 parts of polypropylene material, 30 parts of composite mineral material, 15 parts of polyborodimethylsiloxane 10 parts of auxetic material, 20 parts of anti-impact thickening glue, 5 parts of plasticizer, 10 parts of nanomaterials;

[0044] The composite mineral material is composed of 30 parts by weight of talcum powder, 25 parts of mica powder, 15 parts of precipitated barium sulfate, 18 parts of wollastonite powder, and 22 parts of calcium carbonate;

[0045] The components of the anti-impact thickening glue are as follows in parts by weight: 40 parts of boric acid, 25 parts of hydroxyl silicone oil, 20 parts of silicon dioxide and 15 parts of isopropanol, wherein the particle size of silicon dioxide is 800mm;

[0046] The nanomaterial is a mixture of nano-titanium dioxide and nano-silicon dioxi...

Embodiment 2

[0048] A kind of automobile front bumper with strong impact resistance designed by the present invention, the raw materials of the automobile front bumper are composed by weight: 100 parts of polypropylene material, 40 parts of composite mineral material, 30 parts of polyborodimethylsiloxane 20 parts of auxetic material, 40 parts of anti-impact thickening glue, 10 parts of plasticizer, 15 parts of nanomaterials;

[0049] The composite mineral material is composed of 40 parts by weight of talcum powder, 30 parts of mica powder, 25 parts of precipitated barium sulfate, 22 parts of wollastonite powder, and 28 parts of calcium carbonate;

[0050] The components of the anti-impact thickening glue are as follows in parts by weight: 50 parts of boric acid, 40 parts of hydroxyl silicone oil, 25 parts of silicon dioxide and 20 parts of isopropanol, wherein the particle size of silicon dioxide is 800mm;

[0051] The nanomaterial is a mixture of nano-titanium dioxide and nano-silicon dio...

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Abstract

The invention relates to the technical field of automobile bumper production, and discloses a high-impact-resistance automobile front bumper and an injection molding process thereof. The injection molding process of the front bumper comprises the following steps: sequentially putting a polypropylene material, a composite mineral material, polyboron dimethyl siloxane, an auxetic material, an anti-impact thickening adhesive, a plasticizer and a nano material into a mixing mill for uniformly mixing, and after mixing is completed, carrying out injection molding into a mold through an injection molding machine; and after injection molding is completed, cooling the mold to a proper temperature, opening the mold, and taking down the product. On the basis of a polypropylene material for injection molding of an existing front bumper, the composite mineral material, the nano material and the impact-resistant thickening glue material are added, so that the surface glossiness of the front bumper is improved, the impact-resistant and energy-absorbing effects of the automobile front bumper are enhanced, and the front bumper is excellent in protection performance and higher in impact resistance.

Description

technical field [0001] The invention relates to the technical field of automobile bumper production, in particular to an automobile front bumper with strong impact resistance and an injection molding process thereof. Background technique [0002] The front and rear ends of the car are equipped with bumpers, which not only have decorative functions, but more importantly, are safety devices that absorb and ease external impacts, protect the body, protect the body and occupants. The bumper has safety protection, vehicle decoration and improves the aerodynamics of the vehicle With the development of the automobile industry and the extensive application of engineering plastics in the automobile industry, in addition to maintaining the original protection function, the front and rear bumpers of automobiles also need to pursue harmony and unity with the shape of the car body, and pursue their own lightness. Quantitatively, the front and rear bumpers of cars are made of plastic, whi...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L83/14C08L83/04C08K13/02C08K3/34C08K3/30C08K3/26C08K3/22C08K3/36C08K3/38C08K5/05B29C45/00B29C45/76B29C45/77B29C45/78
CPCC08L23/12B29C45/0001B29C45/77B29C45/78B29C45/76B29L2031/3044C08K2201/014C08K2003/3045C08K2003/265C08K2201/011C08K2003/2241C08K2201/005C08L2205/03C08L2205/02C08L83/14C08L83/04C08K13/02C08K3/34C08K3/30C08K3/26C08K3/22C08K3/36C08K3/38C08K5/05
Inventor 何凯
Owner 常州鑫凯车辆部件有限公司
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