Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of production method of carbon fiber filament

A production method and carbon fiber filament technology are applied in the field of carbon fiber material manufacturing, which can solve the problems of unfavorable carbon fiber manufacturing cost, high relative energy consumption, high pre-oxidation temperature and low temperature carbonization, and achieve good compactness, improved carbon fiber strength, and fiber orientation. improved effect

Active Publication Date: 2017-08-04
XIAN KANGBEN MATERIAL
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pre-oxidation temperature and low-temperature carbonization of this treatment process are relatively high, and the relative energy consumption is relatively large, which is not conducive to reducing the cost of carbon fiber manufacturing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of production method of carbon fiber filament

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The production method of present embodiment carbon fiber silk comprises the following steps:

[0022] Step 1, pre-oxidation:

[0023] Select good-quality and defect-free polyacrylonitrile-based carbon fiber precursors, and then spray the carbon fiber precursors with deionized water to humidify and dry them according to conventional methods, and then send them into a pre-oxidation furnace for pre-oxidation treatment. The pre-oxidation treatment adopts a four-temperature zone pre-oxidation treatment process, which can be completed by one or multiple pre-oxidation furnaces connected in series. The pre-oxidation in each temperature zone uses air as the medium, and the temperature of the pre-oxidation treatment in each temperature zone Under the conditions of 180°C, 231°C, 251°C and 262°C respectively, the carbon fiber precursors are subjected to gradient pre-oxidation treatment; the transmission of carbon fiber precursors is realized by transmission rollers between the four...

Embodiment 2

[0037] The production method of present embodiment carbon fiber silk comprises the following steps:

[0038] Step 1, pre-oxidation:

[0039] Select good-quality and defect-free polyacrylonitrile-based carbon fiber precursors, and then spray the carbon fiber precursors with deionized water to humidify and dry them according to conventional methods, and then send them into a pre-oxidation furnace for pre-oxidation treatment. The pre-oxidation treatment adopts a four-temperature zone pre-oxidation treatment process, which can be completed by one or multiple pre-oxidation furnaces connected in series. The pre-oxidation in each temperature zone uses air as the medium, and the temperature in each temperature zone is 180 ° C. Under the conditions of , 231°C, 251°C and 262°C, the carbon fiber precursors are subjected to gradient pre-oxidation treatment; the transmission of carbon fiber precursors is realized through transmission rollers between the four temperature zones. During the ...

Embodiment 3

[0053] The production method of present embodiment carbon fiber silk comprises the following steps:

[0054] Step 1, pre-oxidation:

[0055] Select good-quality and defect-free polyacrylonitrile-based carbon fiber precursors, and then spray the carbon fiber precursors with deionized water to humidify and dry them according to conventional methods, and then send them into a pre-oxidation furnace for pre-oxidation treatment. The pre-oxidation treatment adopts a four-temperature zone pre-oxidation treatment process, which can be completed by one or multiple pre-oxidation furnaces connected in series. The pre-oxidation in each temperature zone uses air as the medium, and the temperature in each temperature zone is 180 ° C. Under the conditions of , 231°C, 251°C and 262°C, the carbon fiber precursors are subjected to gradient pre-oxidation treatment; the transmission of carbon fiber precursors is realized through transmission rollers between the four temperature zones. During the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
densityaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The present invention provides a method for producing carbon fiber filaments, which comprises the following steps: 1. using a pre-oxidation furnace to pre-oxidize the carbon fiber filaments, and the pre-oxidation treatment adopts a four-temperature zone pre-oxidation process; 2. using a low-temperature carbonization furnace Carry out low-temperature carbonization treatment, and the low-temperature carbonization treatment adopts a six-temperature zone low-temperature carbonization process; 3. Use a high-temperature carbonization furnace for high-temperature carbonization treatment, and the high-temperature carbonization treatment adopts a four-temperature zone high-temperature carbonization process; Fourth, carry out sizing treatment, and then set It was dried in a drying oven to obtain carbon fiber filaments. By adjusting the matching of pre-oxidation, low-temperature carbonization, high-temperature carbonization temperature and drafting ratio, the invention makes the fiber tension reach the expected requirement during the running process, the fiber orientation degree is improved, and the molecular arrangement is more dense, so the strength of the carbon fiber is significantly improved. .

Description

technical field [0001] The invention belongs to the technical field of carbon fiber material manufacturing, and in particular relates to a production method of carbon fiber filaments. Background technique [0002] Polyacrylonitrile (PAN)-based carbon fiber is a kind of inorganic fiber material with a turbostratic graphite structure with a carbon content of more than 90% and a carbon content of more than 90% obtained by using PAN precursors as a precursor. A series of excellent properties such as high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, radiation resistance, electrical conductivity, heat transfer, shock absorption, noise reduction and low relative density. As a high-tech material for both military and civilian purposes, carbon fiber has been widely used in cutting-edge fields such as aerospace, national defense and military, as well as civilian industries such as advanced sporting goods and medical equipment. The developme...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/22D01F11/10
Inventor 许东张增强
Owner XIAN KANGBEN MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com