Process for producing carbon fibers with less damage

A production process and carbon fiber technology, applied in the chemical characteristics of fibers, processing textile material carriers, chemical post-processing of rayon, etc., can solve the problems of adverse effects on product quality and high production costs, and achieve the effect of preventing fluff and improving production quality.

Inactive Publication Date: 2019-11-26
DATONG XINCHENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The texture of carbon fiber is relatively brittle. In the process of carbon fiber prepreg, hairs will be generated during the process of carbon fiber spinning, which will have a negative impact on product quality; and when carbon f

Method used

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Embodiment Construction

[0020] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0021] The invention provides a carbon fiber production process with little damage, comprising the following steps:

[0022] Step a. Pull back the thread collection line, select the original thread, and connect the new thread and the old thread with heat-resistant fibers after splitting, and erect them on the thread collection board;

[0023] Step b, initial drying, send the wire collecting plate together with the raw silk into the drying equipment to dry, elim...

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PUM

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Abstract

The invention discloses a process for producing carbon fibers with less damage. The process comprises the following steps of a, unwinding of filaments and collection of lines, wherein raw filaments are selected, and new filaments and old filaments are connected through heat-resistant fibers after bundle separation and erected on a line collecting plate; b, initial drying, wherein the line collecting plate and the raw filaments are conveyed into a drying device for drying to remove moisture contained in the raw filaments; c, pre-oxidation, wherein the dried raw filaments are fed into three pre-oxidation ovens arranged continuously for pre-oxidation; d, carbonization; e, surface treatment; f, sizing; g, filament collection. The process has the advantages that by adopting yarn expanding equipment adjustable in height in a sizing process and adjusting the height of yarn expanding fixed rollers, the tension of yarn can be adjusted, so that the stress of the carbon fibers is released, the carbon fibers are protected from fuzzing, damage and twisting, and therefore the production quality of the carbon fibers is improved.

Description

technical field [0001] The invention relates to the technical field of carbon fiber production, in particular to a carbon fiber production process with little damage. Background technique [0002] Carbon fiber is a new type of material made from organic matrix fibers by pyrolysis. It has the characteristics of high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance. Its shape is fibrous and can be processed into various fabrics. The carbon fiber graphite microcrystalline structure is preferentially oriented along the fiber axis, so it has high strength and modulus along the fiber axis direction, and its own density is small, and the specific strength and specific modulus are high. In the prior art, carbon fiber is often used as a reinforcing material to be compounded with resin, metal, ceramics and carbon, etc., and processed into a high-strength composite material. Among them, the specific strength and specif...

Claims

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Application Information

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IPC IPC(8): D01F9/22D01F11/10D06B23/04
CPCD01F9/22D01F11/10D06B23/04
Inventor 智伟峰
Owner DATONG XINCHENG NEW MATERIAL CO LTD
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