Pultrusion device and preparation process for high-strength FRP materials

A high-strength, pultrusion die technology, applied in the field of high-strength FRP material pultrusion process, can solve the problems of low strength, inability to give full play to the high-strength performance of fibers, and limit the application and promotion of FRP materials, so as to ensure fluidity and avoid damage to fiber bundles , to achieve the effect of linearity

Inactive Publication Date: 2020-08-07
江苏绿材谷新材料科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to technological reasons, the existing FRP pultruded products have low strength and cannot fully exert the high-strength performance of the fiber, which limits the further application and promotion of FRP materials

Method used

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  • Pultrusion device and preparation process for high-strength FRP materials
  • Pultrusion device and preparation process for high-strength FRP materials
  • Pultrusion device and preparation process for high-strength FRP materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: A pultrusion device for high-strength FRP materials, used to prepare FRP plate pultrusion products.

[0039] The bobbins 2 are placed on the creel 1, and the fiber rovings 3 are drawn out from the creel 1 and passed through the plastic buckle 5 of the first yarn collecting plate 4 bundle by bundle. The dipping tank 6 is filled with a uniformly mixed resin and filler mixture glue 9, and a first heating device 7 is installed below the dipping tank 6 for heating the glue, improving the fluidity of the glue, and ensuring that the fiber roving is fully impregnated. The first yarn-pressing drum 8 and the second yarn-pressing drum 10 are installed between the first yarn-collecting board 4 and the second yarn-collecting board 12 to lower the position of the fiber roving so that the fiber roving is fully immersed in the glue solution 9, and the third yarn-pressing drum 11 is located at the front and upper part of the second pressing cylinder 10, and is used to lead th...

Embodiment 2

[0044] Example 2: A pultrusion device for high-strength FRP materials, used to prepare FRP tendon pultrusion products.

[0045] In this embodiment, except for the first yarn collecting board, the second yarn collecting board and the third yarn collecting board, the others are the same as those in embodiment 1.

[0046] In this embodiment, the number of holes on the traction first yarn collecting board 4, the second yarn collecting board 12 and the third yarn collecting board 13 decreases successively, and the holes take the center point as the center of the circle and are distributed circumferentially, such as Figure 7 , 8 ,9. The diameter of the entrance end of the curved wedge-shaped groove 15 is 1.5-2.0d (the design diameter of the FRP rib), and the cross-section diameters from 20mm near the exit end to the exit end are all d.

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Abstract

The invention discloses a pultrusion device for high-strength FRP materials. The pultrusion device for the high-strength FRP materials is characterized by comprising a yarn collecting part, a glue solution steeping part, a glue squeezing part, a thermal forming part and a traction part. The yarn collecting part comprises a creel, a first yarn collecting plate, a second yarn collecting plate and athird yarn collecting plate. The glue solution steeping part comprises a glue steeping groove, a first heating device, a first yarn pressing cylinder, a second yarn pressing cylinder and a third yarnpressing cylinder. The glue squeezing part comprises a pre-forming mold and a glue collection plate. The thermal forming part comprises a pultrusion mold and a second heating device. A preparation process for the high-strength FRP materials has the advantages that it is ensured that internal fiber of an FRP pultrusion product is not uncrossed, fiber rough yarn is sufficiently steeped with glue andsurplus glue soluting can be sufficiently extruded out, and accordingly preparation of the high-strength FRP materials is achieved.

Description

technical field [0001] The invention relates to the field of material production, in particular to a high-strength FRP material pultrusion process. Background technique [0002] FRP (Fiber reinforced plastics) material is a structural material with a certain or specific shape formed by curing the fiber and resin matrix through a certain process. FRP materials have excellent properties of light weight, high strength, and corrosion resistance. Compared with traditional engineering materials such as steel bars and steel plates, FRP materials have wider application scenarios in the field of civil engineering. In engineering reinforcement, its advantages are mainly manifested in: (a) light weight: it does not increase the weight of the structure, has little impact on the structure, and is convenient for construction; (b) small thickness, has little impact on the structural clearance, etc. The pultrusion molding process is a commonly used preparation method for FRP materials. Thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/52B29C70/54
CPCB29C70/521B29C70/525B29C70/528B29C70/54
Inventor 朱中国吴智深汪昕刘长源史健喆
Owner 江苏绿材谷新材料科技发展有限公司
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