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Method for increasing transverse strength of fiber reinforced resin pultrusion section bar and product thereof

A technology of fiber-reinforced resin and pultrusion profiles, which is applied in the field of fiber-reinforced resin pultrusion profiles, and can solve problems such as powerlessness and weak transverse strength

Inactive Publication Date: 2007-02-28
SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional FRP pultrusion profiles are produced along the fiber direction, and the transverse strength is mainly obtained by resin bonding force. This pultrusion production method makes the disadvantage of weak transverse strength of FRP materials more obvious. At the same time, the weakening of transverse force is also certain. To a certain extent, it also affects the mechanical properties such as longitudinal tensile strength, so in some applications that require high transverse strength, traditional FRP pultruded profiles seem to be unable to do what they want.

Method used

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  • Method for increasing transverse strength of fiber reinforced resin pultrusion section bar and product thereof
  • Method for increasing transverse strength of fiber reinforced resin pultrusion section bar and product thereof
  • Method for increasing transverse strength of fiber reinforced resin pultrusion section bar and product thereof

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Embodiment Construction

[0013] Describe molding process of the present invention in detail below in conjunction with accompanying drawing:

[0014] In the figure, 1 is a fiber creel, 2 is a material guide, 3 is a resin tank, 4 is a bundler, 5 is a preforming device, 6 is a heating and curing device, 7 is a traction device, 8 is a cutting device, and 9 is a motor , 10 is a gear transmission device, 11 is a turret, 12 is a horizontal winding fiber creel, and 13 is a scraper coating device.

[0015] In Fig. 1, the fiber bundles on the fiber creel 1 are first impregnated with resin in the resin tank 3 through the material guide 2, and then passed through the bundler 4 to align the fibers, and then the fiber bundles are preformed by the preforming device 5, so that The FRP pultrusion profile is preliminarily formed, then solidified at a high temperature in the heating and curing device 6, then passed through the traction device 7, and finally cut into a suitable length at the cutting device 8.

[0016] I...

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Abstract

The invention discloses a transverse direction strength improving method of fiber reinforced resin pultrusion, which comprises the following steps: distributing fiber, gumming, premoulding, heating, solidifying, drawing, cutting, premoulding, heating, solidifying, increasing transverse fiber, connecting with premoulding material tightly. The invention improves drawing-proof strength, pressure-proof, bending-proof strength and cutting-proof strength of FRP, which increases bond force between FRP section bar and other materials.

Description

【Technical field】 [0001] The invention relates to a composite material, especially a fiber-reinforced resin pultrusion profile. 【Background technique】 [0002] Fiber Reinforced Resin FRP (Fiber Reinforced Polymer) material has been developed rapidly and widely used since the technology changed from military use to civilian use in the last century. Among them, FRP pultrusion profiles occupy a pivotal position in practical applications, such as applications in industry, construction, interior decoration, automobiles and other fields. Due to the process and other reasons, the most commonly used pultruded profiles are plates, pipes and ribs. [0003] FRP material is an anisotropic material. Its tensile strength in the longitudinal and fiber directions is very high, which can reach 2 to 4 times that of steel bars, but the strength in the transverse direction and perpendicular to the fiber direction is weak. Traditional FRP pultrusion profiles are produced along the fiber direct...

Claims

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Application Information

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IPC IPC(8): B29C70/54B29C70/56B29C70/52
Inventor 霍超何唯平
Owner SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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