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Spinneret and spinneret assembly for spinning pan-based carbon fiber precursor

A technology of carbon fiber precursor and spinneret, which is applied in the field of spinning to achieve the effects of reasonable design, reduced wear, and uniform distribution of stock solution

Active Publication Date: 2018-10-30
HARBIN TIANSHUN CHEM TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the technical problem that the length of the tow produced by the existing spinneret is about 10m, and provides a spinneret for PAN-based carbon fiber precursor spinning

Method used

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  • Spinneret and spinneret assembly for spinning pan-based carbon fiber precursor
  • Spinneret and spinneret assembly for spinning pan-based carbon fiber precursor

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0016] Specific implementation mode one: combine figure 1 To illustrate, the PAN-based carbon fiber precursor spinning spinneret in the present embodiment includes a plate-shaped body 1, on which a number of spinneret holes 2 are arranged, one side of the spinneret hole 2 is a feed inlet, and the other side It is a discharge port, and the body 1 is circular; the spinneret hole 2 is arranged in a circular arrangement by 12 identical graphic units 3, and the spinneret holes 2 in each graphic unit 3 are arranged in a fan shape, and each There are 500 spinneret holes 2 in the unit. The spinneret hole 2 is a circular hole; the diameter of the spinneret hole 2 is 50 microns. The thickness of the body 1 is 2.5mm, and the body 1 can be processed by tantalum. The spinneret holes 2 are arranged in a concentric circle structure from the inside to the outside in the graphic unit 3, and the first 6 to 8 layers are equally spaced and wider than the rear ones.

[0017] The spinneret of th...

specific Embodiment approach 2

[0018] Specific implementation mode two: combination figure 1 and 2 To illustrate, the spinneret assembly in the present embodiment, from figure 2 It can be seen from the figure that the distribution assembly is composed of a distribution plate 7 , an inclined plate 9 , a support device 10 , a supply pipe 6 , a distribution container 4 , and a diffuse channel 8 . Wherein, the supporting device 10 is arranged horizontally, the dispensing container 4 is installed on the horizontal plane of the supporting device 10, and the distribution plate 7 is fixed at the entrance of the distributing container 4, so that the solution can be distributed when entering the distributing container 4. At the inlet of the distribution plate 7 there is a sloping plate 9 mounted on the level of the support means 10 . The angle between the inclined plate 9 and the horizontal plane is 45 degrees, and the angle with the distribution plate 7 is also 45 degrees. This angle allows for a moderate flow ...

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Abstract

The invention discloses a spinneret plate and a spinneret assembly for PAN-based carbon fiber precursor spinning and belongs to the field of spinning in order to solve the technical problem that tows produced by an existing spinneret plate are about 10 m long. The spinneret plate comprises a plate-shaped body, a plurality of spinneret holes are formed in the body, a feed inlet is formed in one side of the spinneret holes, a discharge opening is formed in the other side of the spinneret holes, and the body is round. The spinneret holes are annularly distributed in 12 identical pattern units. The spinneret holes in each pattern unit are distributed in a sector shape. The spinneret assembly is a distribution container with a spinning nozzle and a distribution plate, an inclined plate with the bottom corresponding to an inlet of the distribution plate, a supply pipeline connected with the top of the inclined plate, and an overflow channel, wherein the overflow channel is connected with the two sides of the inclined plate, and the two ends of the overflow channel are connected with the distribution plate and the supply pipeline respectively. The design is reasonable, the structure is simple, production efficiency is high, quality is stable, abrasion can be reduced, the application range is wide, and tows which are 50 m or longer can be produced.

Description

technical field [0001] The invention belongs to the field of spinning and relates to a spinneret and a spinneret assembly. Background technique [0002] Carbon fiber is a high-strength, high-modulus fiber made of polyacrylonitrile (PAN) fiber, viscose fiber or pitch fiber, which is made by heating to remove all elements other than carbon. It has good chemical stability, high temperature resistance, corrosion resistance, friction resistance, fatigue resistance and other properties. It is an excellent structural material in the preparation of high-performance composite reinforced materials, so it is widely used in textiles, chemicals, machinery, aviation, construction. , sporting goods and other fields. [0003] PAN fiber for carbon fiber is made of acrylonitrile (AN) as raw material, dimethyl sulfoxide (DMSO) as solvent, polymerized under the action of an initiator, and the fiber is obtained by spinning. [0004] The length of the tow produced by the existing spinneret is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D4/02D01D1/06
CPCD01D1/06D01D4/02D01D4/022
Inventor 孟凡钧孟子顺
Owner HARBIN TIANSHUN CHEM TECH DEV CO LTD