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Online moulding method of light high strength composite material

A high-strength composite material and light-weight technology, applied in the field of composite materials, can solve the problems of low production efficiency, poor product consistency, low technical content, etc., and achieve the effects of high production efficiency, high forming quality and wide application range

Inactive Publication Date: 2014-01-22
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the domestic and foreign technical status of online forming of light-weight and high-strength composite materials, the present invention provides a complete set of light-weight and high-strength online forming equipment and online continuous forming method to solve the problems of low technical content, poor product consistency and low production efficiency in the production process of domestic composite materials.

Method used

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  • Online moulding method of light high strength composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The feeding speed of modified PP material is 215 kg / h, the feeding speed of additive is 5 kg / h, the feeding speed of recycled PP material is 20 kg / h, the feeding speed of modified glass fiber is 240 kg / h, and the feeding speed of die head is 480 kg / h, the 15mm length glass fiber in the blank accounts for 80% of the total fiber mass, the nominal pressure of the press is 20000KN, the part size is 1530×500×290mm, and the single-piece forming cycle is 40s.

Embodiment 2

[0025] The feeding speed of modified PP material is 220 kg / h, the feeding speed of additive is 10 kg / h, the feeding speed of carbon fiber is 150 kg / h, the feeding speed of die head is 380 kg / h, and the carbon fiber with a length of 10mm in the blank accounts for 70% of the total fiber mass. %, the nominal pressure of the press is 20000KN, the size of the part is 1490×550×1200mm, and the forming cycle of a single piece is 30s.

Embodiment 3

[0027] The feeding speed of modified PP material is 225 kg / h, the feeding speed of additive is 5 kg / h, the feeding speed of recycled PP material is 30 kg / h, the feeding speed of modified glass fiber is 190 kg / h, and the feeding speed of die head is 450 kg / h, the 30mm length glass fiber in the blank accounts for 80% of the total fiber mass, the nominal pressure of the press is 20000KN, the part size is 730×690×18mm, and the single-piece forming cycle is 25s.

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Abstract

The invention provides an online moulding method of a light high strength composite material. The method comprises the following steps: 1, resin weighing and loading; 2, filter feeding; 3, resin fusing and plastifying; 4, fiber cutting and blending at fixed length; 5, blank metering and cutting; 6, blank heat-preserved conveying; 7, grasping the blank by a robot I; 8, rapid formation by an automatic press; 10, demoulding and fetching by a robot II; and11, conveyor belt and post-treatment and the like, wherein rapid formation by the press relates to 9, namely a die and a heating and cooling system. The technical parameters of the whole line are coordinated and managed by 12, namely, a complete flow scheme intelligent control system. According to the method provided by the invention, the steps of resin feeding, resin plastifying, fiber guiding, fiber dipping, fiber cutting and blending at fixed length and the like are realized on a twin screw device, so that the fiber length is effectively retained. The online moulding method of the light high strength composite material, provided by the invention, is applicable to various resin and fiber materials and has the characteristics of high production efficiency, good moulding quality, wide application range and the like.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to an online forming method of light-weight and high-strength composite materials. Background technique [0002] Compared with short-fiber composite materials, long-fiber composite materials obtained by mixing fiber materials such as glass fiber and carbon fiber with a length of >10mm and resin matrix have light weight, high strength and other comprehensive properties, and are an important means for vehicle lightweight and component integrated manufacturing. , which has aroused widespread concern in the composite material manufacturing industry at home and abroad. The on-line compression molding technology of light-weight and high-strength composite materials can replace automobiles, construction machinery, ships, etc. The existing steel structural components in the fields of ships and buildings have a large market capacity and wide application. At prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/40
CPCB29C70/52B29C70/523B29C70/527B29C70/528B29B7/60B29B7/90B29C48/0022B29C48/16B29C48/2886
Inventor 范广宏任明伟颜昌海杨洁周永松蔡卫东何琪徐景华
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH