Device and method for automatically testing drape factor of high performance carbon fiber

Abstract

The invention discloses a device and a method for automatically testing a drape factor of a high performance carbon fiber. The device comprises a vertically arranged support frame, a test frame horizontally fixed on the support frame, a fiber retainer A slidably fixed on the test frame, a fiber retainer B fixed at the middle part of the test frame, a fiber yarn frame which is mounted at one end ofthe support frame and is adjacent to the fiber retainer B, a tension regulator which is fixed at one end, far away from the fiber yarn frame, of the test frame and used for providing a preset tensionfor the fiber retainer A and a level gauge fixed on the test frame; a removable distance measuring sensor is arranged at the side edge of the support frame; leveling feet are mounted at the bottom ofthe support frame; and a controller connected with the distance measuring sensor by virtue of a signal is also mounted on the support frame. The device disclosed by the invention realizes breaking test integration, detection efficiency is improved, a test result is stable, and coefficient of dispersion is small.

Description

technical field [0001] The present disclosure generally relates to the technical field of fiber production testing, and in particular to a high-performance carbon fiber drape automatic testing device and method. Background technique [0002] Carbon fiber is a polymer material with a series of excellent properties such as high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, electrical conductivity, heat transfer and small thermal expansion coefficient. [0003] In the production and preparation process of carbon fiber, every link will have a great impact on the mechanical properties and physical properties of carbon fiber. In the production process of PAN-based carbon fiber, the process conditions, type of sizing agent, stability of sizing agent, and storage conditions of carbon fiber in the later stage are all important. It may lead to hard and brittle carbon fiber, mainly manifested as poor hand feeling and po...

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned test device in the prior art needs to manually cut the fiber during the test, which may cause uneven fiber length; when reading manually, because the fiber is suspended in mid-air, the fiber sample is easy to deviate, resulting in asymmetrical lengths on both sides. And the fiber is easy to twist back and forth, easily affected by the natural wind in the test environment, the analysis result is unstable, and the test data is scattered.

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