Carbon fiber multifilament sample preparation tool

Abstract

The invention discloses a carbon fiber multifilament tensile sample tool. The carbon fiber multifilament tensile sample tool comprises an impregnator, a winding frame, a winding machine and a tensioner, the impregnator is used for impregnating carbon fiber yarn, a winding groove is formed in the winding frame, the tensioner is located between the impregnator and the winding machine, and the tension of the tensioner on the carbon fiber yarn is adjustable. Before winding, the carbon fiber yarn is impregnated by the impregnator, then is subjected to tension stretching by the tensioner and then is wound in the winding groove of the winding frame, and the winding frame is driven by the winding machine to rotate, so that a carbon fiber multifilament stretching sample is formed in the winding groove, it is guaranteed that the formed carbon fiber multifilament tensile sample is high in gum dipping reliability, the tension of the carbon fiber multifilament tensile sample is controllable, the structural performance of the formed carbon fiber multifilament tensile sample is not changed, and the test accuracy of the performance of the carbon fiber multifilament tensile sample is high.

Description

technical field [0001] The invention relates to the field of carbon fiber sample preparation tooling, in particular to a carbon fiber multifilament sample preparation tooling. Background technique [0002] Due to the advantages of good strength, modulus, corrosion resistance, small thermal expansion coefficient and good dimensional stability, carbon fiber is widely used in aerospace, sealing equipment, automobiles, wind power and other fields. Among them, the mechanics of carbon fiber composites Performance depends largely on the mechanical properties of carbon fiber, therefore, accurate measurement of the tensile properties of carbon fiber is an important content of its quality evaluation. [0003] At present, the tensile method of carbon fiber multifilament tensile specimens is often used to measure the mechanical properties of carbon fibers. This method is to use a bundle of carbon fiber multifilament tensile specimens to impregnate and solidify to form a composite materi...

AI Technical Summary

Problems solved by technology

[0003] At present, the tensile method of carbon fiber multifilament tensile specimens is often used to measure the mechanical properties of carbon fibers. This method is to use a bundle of carbon fiber multifilament tensile specimens to impregnate and solidify to form a composite material, and then perform tensile performance tests. The method is closer to the state of carbon fiber in the composite material, so as to obtain accurate performance test results. Among them, carbon fiber dipping and curing can be divided into two types: mechanical method and manual method. Since the content of the manual dipping method cannot be determined, resulting in tensile properties There is a deviation between the test result and the actual value, and there is no uniform and standard tooling for mechanical sample preparation, which leads to damage to the sample and affects the tensile properties of the carbon fiber multifilament tensile sample

Images