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Systems for washing-drying, sizing and dry-setting of carbon fibers

A carbon fiber and drying technology, which is used in textiles and papermaking, textile material processing, continuous processing of textile materials, etc. Affect the final material properties and other issues, to achieve the effect of reducing electricity costs, saving floor space, and maintaining uniformity

Active Publication Date: 2018-10-19
ZHONG AN XIN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the carbon fiber sizing amount is uneven, the width of the carbon fiber tow and the appearance shape are irregular, the manufacturability is relatively poor when the carbon fiber is made into a prepreg or woven into a fabric, and the shape of the prepreg and braid is difficult to be accurate control, which in turn affects the properties of the final material
[0003] At present, the commonly used carbon fiber washing and drying and sizing drying equipment in China is relatively backward. Most of them are horizontal furnaces and vertical furnaces. Disadvantages of large land and high cost
The most important thing is that the width of the carbon filament cannot be widened well, resulting in different widths of the wire width, which is not conducive to the later weaving and application

Method used

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  • Systems for washing-drying, sizing and dry-setting of carbon fibers
  • Systems for washing-drying, sizing and dry-setting of carbon fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Heat the washing and drying hot roller in advance. The temperature setting is 147°C. After reaching the target temperature, it is connected to the washed 12K T700 carbon fiber, and the washing and drying hot roller unit is introduced at a linear speed of 8m / min.

[0034] Prepare a slurry with a concentration of 4.5%, stir it evenly, and pump it into the sizing tank through a circulating pump. Turn on the temperature control system. When the temperature of the slurry in the tank is 25±2℃, connect the carbon fiber from the washing and drying hot roller unit, and then The sizing process is completed by each transmission smooth roller. When the carbon fiber passes through the second squeeze roller, use the hand valve to close the squeeze rubber roller set, and keep the stroke scales on both sides of the first squeeze roller consistent for squeezing. Both are 20.35mm.

[0035] Heat up the heat roller set of the drying and setting system in advance, and then insert the carbon fibe...

Embodiment 2

[0037] The same temperature for washing and drying and sizing and drying is used as in Example 1, but the difference from Example 1 is that the stroke of the squeeze roller is 20.20 mm.

Embodiment 3

[0039] The temperature of the water-washing and drying hot roller is raised in advance, and the washed carbon fiber is inserted after the temperature is raised to 160°C, and the water-washing and drying hot roller unit is introduced at a linear speed of 8m / min.

[0040] Prepare a slurry with a concentration of 4.5%, stir it evenly, and pump it into the sizing tank by a circulating pump. Turn on the temperature control system. When the temperature in the tank is controlled at 25±2°C, the carbon fiber of the washing and drying hot roller unit passes through each transmission light in turn. The roller completes the sizing process. When the carbon fiber passes through the second squeeze roller, use the hand valve to close the squeeze rubber roller set, and keep the stroke scales on both sides of the first squeeze roller consistent for squeezing. The strokes on both sides are 20.25mm .

[0041] Heat up the heat roller of the drying and setting system in advance, and then connect to the ...

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Abstract

The invention discloses a system for water-washing drying, sizing and drying setting of carbon fiber. The system comprises a water-washing drying hot roller unit, a sizing system, an extruding rubber roller set and a sizing drying hot roller setting unit, the water-washing drying hot roller unit is used for drying moisture of the carbon fiber in a water-washing section and comprises a first hot roller unit and a first heating system, the sizing system is connected to the water-washing drying hot roller unit, the extruding rubber roller set is connected to the sizing system and used for extruding spare sizing agent in tows of the carbon fiber and comprises a first extruding roller and a second extruding roller in parallel arrangement, and the sizing drying hot roller setting unit is connected to the extruding rubber roller set and used for drying moisture in the sizing process and expanding silk width of the carbon fiber and comprises a second hot roller unit and a second heating system. The system saves space and can remarkably reduce broken filament amount of the carbon fiber and increase the silk width.

Description

Technical field [0001] The invention belongs to the technical field of carbon fiber production, and relates to a system for washing, drying, sizing and drying and setting carbon fibers. Background technique [0002] Carbon fiber is a new type of material with the advantages of low density, high strength, high temperature resistance, corrosion resistance, etc. It has been widely used in aerospace, shipbuilding, automotive and other fields, in emerging industries such as high-speed trains, wind turbine blades, and cable support cores. The application in other fields is becoming more and more extensive, and it is a high-tech new material for both military and civilian use. The preparation process of carbon fiber carbonization process includes pre-oxidation, carbonization, surface treatment, washing, washing and drying, sizing and drying. Sizing and drying are the last steps in the carbon fiber preparation process. The purpose of sizing is to increase the bundling, abrasion resistan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B21/00D06B15/00D06B15/02D06B23/22D06C7/02
CPCD06B15/00D06B15/02D06B21/00D06B23/22D06C7/02
Inventor 李军丁月里王永生张永明齐志军于志刚常平邹健王月然邹海威修磊张大亮
Owner ZHONG AN XIN TECH CO LTD
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