A novel pultrude process and product thereof

A pultrusion process and finished product technology, applied in the field of composite material profile production, can solve problems such as easy generation of waste, reduced product strength, time-consuming and labor-intensive, etc. Effect

Inactive Publication Date: 2007-05-30
YASHILAN PACIFIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] At present, in order to improve the bonding with other materials, the products formed by the pultrusion process need to be polished and sandblasted before application, which increases the post-processing process, which is time-consuming and labor-intensive. After mechanical grinding, the product size is unstable. The quality cannot be guaranteed and it is easy to produce waste products. The strength of the product may be reduced due to fiber wear, the surface roughness of the product is uneven, and the bonding effect is difficult to control. Therefore, not only the production cost is increased, but the product quality cannot be controlled.

Method used

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  • A novel pultrude process and product thereof

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Embodiment Construction

[0017] The present invention is a new pultrusion process, which mainly includes the following sequential steps: first arrange reinforcement materials, such as fiber yarns, felts, surface mats, etc., impregnate them with resin, then preform them through a preforming die, and Add peelable materials, such as release cloth, to the surface of the preformed semi-finished product, and then send it into the mold for extrusion molding and heat curing, and finally pull it to the cutting device through the traction mechanism, and cut it according to the size required by production to obtain the finished product . The finished product includes a pultruded main body and a peelable material layer on the outer surface of the main body. Since the peelable material itself has a certain roughness, the surface of the main body in contact with the peelable material layer forms a uniform rough surface.

[0018] The transmission system of the reinforced fiber yarn adopts the yarn inlet frame, the f...

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Abstract

The pull and compression process comprises intensifying material arrangement, soaking the resin glue, performing, filling into stripping material, compressing plastics to solidify, extraction, cutting and final product. Filled with stripping material, product can have even rough surface, for the benefit of bonding of it with other materials, stable in product dimension, strict quality control, standardization with simplified process and reduced cost. It mainly uses in structural strength supplementing for all kinds of fiber intensifying plastics, distributing electric insulation core and other fields.

Description

technical field [0001] The invention relates to the field of composite material profile production, in particular to a new pultrusion process and its products. Background technique [0002] FRP is scientifically known as fiber reinforced plastic, and it is customarily called glass fiber reinforced plastic in China. It is a composite material composed of synthetic resin as a matrix material, fiber and its products, among which glass fiber is the most commonly used reinforcing material. Since FRP came out, after decades of exploration and hard work, FRP molding processes include hand lay-up, winding, pultrusion, centrifugal casting, GMT and many other methods. [0003] The pultrusion process is a method of continuous production of composite material profiles. It impregnates untwisted glass fiber rovings on the creel and other continuous reinforcing material mats, surface mats, etc. with resin, and then passes through a molding die that maintains a certain cross-sectional shape...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/52B29C70/54B29C33/68B32B27/00B29L31/00
Inventor 林荣杰
Owner YASHILAN PACIFIC
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