Carbon fiber pipe drawing and extruding die

Abstract

A novel carbon fiber pipe drawing and extruding die comprises a die sleeve, a die core and a die carrier, wherein the die core is arranged in the die sleeve; the die core and the die carrier are connected through a mandrel; inner edges, which limit the die core to move in the axial direction, are arranged at two ends of the die sleeve; and the die sleeve is formed by combining two sets of aluminium housings symmetrically arranged up and down. Only the die core is die steel; the die sleeve and the die carrier are aluminium products; and the die is relatively light, low in manufacturing cost, convenient and fast to dismount, fast and uniform to heat, and high in curing speed. Under the same condition, the die is relatively small in occupied area; when carbon fiber pipes are produced, multiple pipes can be produced simultaneously on one production line, so that the production efficiency is improved greatly. The die is simple in structure, and convenient to operate, the wall thickness of the product produced is uniform, the product is attractive in appearance, and the curing degree is high. Meanwhile, all that is needed to replace with products with other specifications is to process the die core and the mandrel, so that the production cost is lowered remarkably.

Description

Technical field [0001] The invention relates to the technical field of carbon fiber profile production and processing, in particular to a new type of carbon fiber pipe pultrusion die. Background technique [0002] In the carbon fiber pultrusion production process, the mold is generally divided into two types: one is a split mold; the other is an integral mold, that is, a barrel mold. The split mold is easy to damage the inner wall and corners of the cavity during the disassembly process, resulting in product surface flaws and prominent parting lines, which affects the quality of the product; the overall mold (gun barrel mold) is often made of a single piece of mold steel. It is cumbersome and inconvenient to process and disassemble, but the inner wall of the mold is not easy to damage, and the surface of the product produced is smooth and there is no parting line. These two types of pultrusion die materials generally use die steel, which is relatively expensive and relatively he...

AI Technical Summary

Problems solved by technology

Split molds are easy to damage the inner wall and corners of the cavity during the disassembly process, resulting in product surface flaws and prominent parting lines, thereby affecting product quality; the overall mold (barrel mold) is often processed from a whole piece of mold steel, which is relatively It is heavy, and it is not convenient to process and disassemble, but the inner wall of the mold is not easy to damage, and the surface of the produced product is smooth and has no parting line

These two types of pultrusion die materials generally use die steel, which is relatively expensive and heavy, ranging from forty or fifty kilograms to hundreds of kilograms, with slow heating and high power consumption.

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