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Molding technology of single-ring closed type fiber reinforced resin base composite material stirrups

A fiber-reinforced resin and composite material technology, which is applied in the field of single-loop closed polygonal composite stirrup winding and forming technology, can solve the problems of poor dimensional accuracy of stirrups, poor concrete bonding, and corner stress concentration, and achieve accurate stirrup size. Stable, improved mechanical fitting force, and guaranteed uniformity

Active Publication Date: 2015-12-02
HENGSHEN
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Problems solved by technology

[0003] The purpose of the present invention is to provide a single-loop closed fiber-reinforced resin-based composite material stirrup forming process to solve the problems of poor dimensional accuracy of stirrups, corner stress concentration, and poor bonding with concrete in the prior art.

Method used

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  • Molding technology of single-ring closed type fiber reinforced resin base composite material stirrups
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  • Molding technology of single-ring closed type fiber reinforced resin base composite material stirrups

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Embodiment

[0035] A single-loop closed fiber-reinforced resin-based composite material stirrup forming process, using a fiber winding forming process to manufacture composite material stirrups 7, such as figure 1 The fiber winding molding process includes a creel for placing fiber yarn clusters 1, a glue tank 3, a fiber winding device 4, a forming mold, and a movable heating source 6, which are arranged in sequence, and the glue tank 3 is provided with a dipping stick 2, The fiber bypasses the dipping stick 2 to realize the dipping, and the fiber is wound on the inner mold 5 by the fiber winding device 4, and the forming mold includes the inner mold 5 and the outer mold, such as Figure 7 , using the internal and external double mold molding method, that is, the inner mold 5 is a hard mold, the surface of the inner mold 5 is wrapped with rubber-impregnated fibers, the straight section of the outer mold is a hard mold, and the corner section of the outer mold is a soft mold. The outer mol...

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Abstract

The invention provides a molding technology of single-ring closed type fiber reinforced resin base composite material stirrups. The technology comprises the steps of mold design preparation, rubber liquid preparation, fiber winding, die assembly, pressurized curing, mold releasing and cutting trimming, compared with an existing molding technology of the single-ring closed type fiber reinforced resin base composite material stirrups, the molding technology of the single-ring closed type fiber reinforced resin base composite material stirrups has the beneficial effects that a fiber winding technology is adopted, an inner and outer double-mold combined mold is adopted, and reinforcing and curing are carried out. The composite material stirrups have the beneficial effects that the surfaces of the stirrups have grains, and the imbedding force between the stirrups and concrete is increased. A reinforcing phase of the composite material stirrups is a continuous fiber. The corner and straight-side thickness uniformity of the stirrups is good. The stirrups are accurate and stable in size, the mechanical property of the stirrups is fully exerted, and the bearing force of a concrete structure is improved.

Description

technical field [0001] The invention relates to a fiber-reinforced resin-based composite material stirrup forming process, in particular to a single-circle closed polygonal composite material stirrup winding forming process. Background technique [0002] Composite stirrups have the properties of high strength, light weight, and excellent corrosion resistance, replacing traditional steel bars, and are widely used in engineering. Composite material straight bars and stirrups used in composite material reinforced concrete structures have better corrosion resistance and temperature resistance than traditional reinforced concrete. The composite material stirrup produced by the existing single-loop closed fiber-reinforced resin-based composite stirrup molding process has poor dimensional accuracy, resulting in inaccurate structural design; the smooth surface is poorly bonded to concrete, and the mechanical properties of the stirrup cannot be fully utilized. Performance: There is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/44B29C70/54
CPCB29C70/443B29C70/545
Inventor 邱茂顺刘小平贾朋军郭超超张宁刘灵通
Owner HENGSHEN
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