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A method for secondary molding of thermosetting fiber polymer composite material

A composite material and secondary molding technology, which is applied in the field of secondary molding of thermosetting fiber polymer composite materials, can solve the problems of discontinuous production and high cost, and achieve the effect of low production cost and high work efficiency

Inactive Publication Date: 2015-08-19
SHANGHAI KNP CHEM +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages, need to invest in secondary molding equipment, high cost, discontinuous production

Method used

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  • A method for secondary molding of thermosetting fiber polymer composite material

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Embodiment Construction

[0012] see figure 1 , is a schematic flowchart of an embodiment of the present invention. In the figure, the fiber polymer composite material 1 is composite tendons, rods, and rods, and the composite tendons, rods, and rods that are preliminarily formed by heating and curing in the drying tunnel 2 are pulled away from the drying tunnel under the traction of the tractor 7, and the first traction fixture is used to 3 Clamping, under continuous traction, then use a protective sleeve 5 (such as a flexible rubber tube, etc.) to cover the tendons, rods, and rods (to protect the tendons, rods, and rods from damage) and enter the bending machine. 4 After bending and forming, disengage, Reheat and shape the flexible heater 6 (or box-shaped heater) that can be bent freely, and after the pulling machine continues to pull the ribs, rods, and rods to a certain length, clamp them with the second pulling fixture. After the rods, tendons, and rods are stressed, , release the first pulling fi...

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Abstract

The invention discloses a post-forming method for a thermosetting fiber polymer composite material. The fiber polymer composite material subjected to primary pultrusion, which is not heated and cured or heated but not completely cured, is immediately subjected to post forming by bending by a bending formation machine and then is subjected to heat setting. In the method, the fiber thermosetting polymer composite rib, bar, rod and rope materials, which are pulled and extruded and basically thermoformed but not completely cured, are immediately subjected to post forming by bending and then are subjected to heat setting and natural cooling to obtain the product. The method has the advantages of simplicity, continuity, low production cost and high work efficiency without requiring major reconstruction to the equipment.

Description

technical field [0001] The invention relates to a thermosetting molding method for pultruding thermosetting resin and various fibers (glass, basalt fiber or other synthetic fibers) into composite ribs, rods, rods, cables and other fiber polymer composite materials. Background technique [0002] Thermosetting fiber polymer composite tendons, rods, rods, cables, made of fibers (glass fiber, aramid fiber, quartz fiber, basalt fiber and various organic polymer fibers), impregnated with thermosetting polymer materials (epoxy, vinyl resin, Unsaturated and other resins), formed by pultrusion and heat curing. Since the thermosetting polymer material undergoes a thermal curing reaction after being heated, it becomes an infusible, insoluble, and non-recoverable network structure. Therefore, general thermosetting polymer materials have the disadvantage of not being able to be processed and formed after heating, which limits the production and application of the product. [0003] At p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/52B29C70/54
Inventor 张杰胡敏静郑炜何唯平
Owner SHANGHAI KNP CHEM