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Production technology of carbon filament beating-up

A production process and beating-up technology, applied in healds, textiles, looms, etc., can solve problems such as explosions, fires, and backwardness

Inactive Publication Date: 2016-04-13
ZHEJIANG JINGGONG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, in the preparation of PAN precursors, key technologies such as large-capacity polymerization and rapid spinning are backward, resulting in unstable product performance and uncontrollable broken filaments. This kind of problem, especially for the key pre-oxidation process broken wire, will cause fire, even explosion and other irreparable losses

Method used

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  • Production technology of carbon filament beating-up
  • Production technology of carbon filament beating-up

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Such as figure 1 Shown, the carbon fiber beating-up production technology of present embodiment 1 comprises the following steps:

[0021] (1) Through the heald frame of the beating machine (similar to a loom), the PAN raw silk 3 is divided into upper and lower layers according to odd and even numbers;

[0022] (2) Weave the carbon fiber filaments 2 through the openings of the two layers of PAN precursors and PAN precursors;

[0023] (3) Exchange the upper and lower positions of the heald frame, so as to exchange the upper and lower positions of the single and double layers of PAN raw silk 1;

[0024] (4) Pass the carbon fiber filament 3 through the opening and weave it together with the single-layer and double-layer PAN precursor filament 1;

[0025] (5) After completing step (4), continue to repeat the above steps (1)-(4) for beating up at a certain distance to achieve the purpose of beating up.

Embodiment 2

[0027] Such as figure 2 Shown, the carbon fiber beating-up production technology of present embodiment 2 comprises the following steps:

[0028] (1) Divide the PAN raw silk 1 into upper and lower layers according to odd and even numbers through the heald frame of the beating machine (similar to a loom);

[0029] (2) Put the weft storage mechanism with carbon fiber filament 2 through the openings of two layers of PAN filaments, and weave them together with PAN filaments 1;

[0030] (3) Exchange the upper and lower positions of the heald frame, so as to exchange the upper and lower positions of the single and double layers of PAN raw silk 1;

[0031] (4) Continue to pass the carbon fiber filament 2 through the opening and weave it together with the PAN precursor filament 1 (dotted line segment);

[0032] (5) After completing step (4), continue to repeat the above steps (1)-(4) for beating up at a certain distance to achieve the purpose of beating up.

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Abstract

The invention relates to a production technology of carbon filament beating-up. The production technology comprises the following steps that 1, PAN protofilaments are divided into an upper layer and a lower layer, namely, the PAN protofilament layer containing singular numbers of the protofilaments and the PAN protofilament layer containing even numbers of the protofilaments according to the singular numbers and even numbers through a beating-up machine heald frame; 2, carbon fiber filaments or a weft storage mechanism with the carbon fiber filaments penetrates through openings of the upper layer and lower layer of the PAN protofilaments to make the carbon fiber filaments and the PAN protofilaments woven together; 3, the upper position and the lower position of the heald frame are exchanged, and then the positions of the upper layer PAN protofilaments and the lower layer PAN protofilaments are exchanged; 4, the carbon fiber filaments penetrate through the opening to be woven together with the PAN protofilaments. According to the production technology of carbon filament beating-up, the carbon fiber filaments and the PAN protofilaments are woven together, the problems that due to the fact that the property of the protofilaments is unstable and operation of equipment is unstable, when partial PAN protofilaments are broken, the PAN protofilaments are scattered in the equipment, or due to the fact that the manufacturing precision of the equipment is insufficient, the PAN protofilaments are overlapped, a fire or even an explosion is caused, and the carbon fiber filaments cannot operate normally are solved, the operability during filament breaking is improved, losses are reduced, and personnel safety is improved.

Description

technical field [0001] The invention relates to a carbon fiber production process, in particular to a production process for beating up PAN precursors in a pre-oxidation process. Background technique [0002] Carbon fiber (CarbonFibre) is a fibrous carbon material, and the carbon element in its chemical composition accounts for more than 90% of the total mass. Carbon fiber and its composite materials have a series of excellent properties such as high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electrical conductivity, heat transfer, and small thermal expansion coefficient. They can be used as structural materials to carry load, and can function as a functional material. Therefore, carbon fiber and its composite materials have developed very rapidly in recent years. [0003] After years of development, only three raw materials for preparing carbon fibers, viscose (cellulose)-based fibers,...

Claims

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Application Information

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IPC IPC(8): D03C9/06D03C13/00D03D49/00D03D15/00D01F9/22D01F9/32D03D15/275D03D15/283
CPCD01F9/22D01F9/328D03C9/06D03C13/00D03D15/00D03D49/00
Inventor 朱吉元金力傅建根袁华中
Owner ZHEJIANG JINGGONG SCI & TECH
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