Sintering furnace for preparing continuous fiber made form zirconia

A continuous fiber and zirconia technology, which is applied in the preparation of zirconia continuous fiber and high-performance high-temperature oxide fiber, can solve the problems of uneven dispersion of zirconium in the mixing method, easy clogging of spinning, and affecting spinning, etc. Achieve the effects of reducing performance unevenness, simple and easy routes, and shortening the distribution range

Inactive Publication Date: 2005-03-30
绍兴市圣诺超高温晶体纤维材料有限公司
View PDF3 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the melting point of zirconia is too high, its continuous fiber cannot be prepared by melting method, only various precursor methods as mentioned above can be used, and the existing technologies all have their own shortcomings.
From the perspective of the precursor system, the zirconium content in the impregnation method is too low, and it is difficult to prepare high-strength zirconia fibers; from the performance of the spinning solution, the dispersion of zirconium in the mixing method is not uniform enough, the spinning

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
  • Sintering furnace for preparing continuous fiber made form zirconia
  • Sintering furnace for preparing continuous fiber made form zirconia
  • Sintering furnace for preparing continuous fiber made form zirconia

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] (1) 97.0 grams of high-purity zirconium oxychloride (ZrOCl 2 ·8H 2 O) be dissolved in 1000 milliliters of methanol, under ice bath at 0~4 ℃, according to the ratio of zirconium oxychloride: acetylacetone: triethylamine=1: 1.5: 2 in molar ratio, successively add 46.0 milliliters of acetylacetone dropwise and 84.0 ml of triethylamine, stirring continuously during the dropwise addition, after the dropwise addition, remove the ice bath, continue to stir at room temperature for 2 hours, evaporate the solvent methanol with a rotary evaporator, until dry, add 500 ml of tetrahydrofuran, stir vigorously After 1 hour, filter with suction to remove the white precipitate, then use a rotary evaporator to evaporate the solvent tetrahydrofuran from the filtrate until a dried light yellow hardened substance is obtained, add 700 ml of n-hexane, stir vigorously for 24 hours, filter with suction, and dry the precipitated filter cake to obtain 61.2 grams of zirconium polyacetylacetonate w...

Embodiment 2

[0060] As described in Example 1, the difference is that 97.0 grams of high-purity zirconium oxychloride is replaced by 97.0 grams of commercially pure zirconium oxychloride in step (1), and the tensile strength of the continuous zirconia fiber obtained is the result of comparative example 1 slightly worse.

Embodiment 3

[0062] As described in Example 1, the difference is that the ratio of zirconium oxychloride in step (1): the molar ratio of acetylacetone=1:1.5 is changed to 1:1, that is, 46.0 milliliters of acetylacetone is changed to 30.7 milliliters of acetylacetone , The tensile strength of the obtained zirconia continuous fiber is slightly higher than that of Example 1.

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

No PUM Login to view more

Abstract

The invention is a method and device of preparing high-performance continuous cobalt oxide fiber, including: using acetylacetone and cobalt oxide as main raw materials to synthesize a precursor cobalt acetyl-acetonate polymer, dissolving the precursor in methanol to obtain spinning solution, using dry-spinning to obtain continuous precursor fiber, making thermal processing of sintering to obtain continuous cobalt oxide fiber, adopting special atmosphere thermal processing process on the precursor fiber, and blowing air flow to the continuous cobalt oxide fiber at high temperature so as to strengthen the fiber extensibility. The thermal processing is made in a functional sintering furnace which contains inner pipe, outer pipe, and heater wire coiled on the outer pipe, and at the time of aerating, the air flow can be radiantly blown out through a fine slit in the inner pipe. The process of the invention is simple and easy to operate, able to prepare smooth and uniform continuous cobalt oxide fiber with tensile strength over 2.6 Gpa and length able to be several kilometers.

Description

[0001] This application is a divisional application of "Preparation Method and Equipment for High-performance Zirconia Continuous Fiber" 03112408.9 (filing date 2003.6.10). (1) Technical field [0002] The invention relates to a method for preparing high-performance high-temperature oxide fibers, in particular to a method for preparing continuous zirconia fibers with high strength, high toughness, high temperature resistance and good heat insulation, belonging to the field of structural and functional fiber materials . (2) Background technology [0003] With the development of economy and science and technology, fiber materials such as quartz fiber, carbon fiber, glass fiber and oxide ceramic fiber are playing an increasingly important role in optical communication, aerospace, military and other high-tech and cutting-edge technology fields. important role. [0004] Zirconia continuous fiber is a structural and functional material with great application potential. Compared w...

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
IPC IPC(8): C01G25/02C04B35/48D01F9/08F27B5/00
Inventor 许东刘和义侯宪钦王彦玲汪晨吕孟凯袁多荣陈代荣刘久荣潘梅
Owner 绍兴市圣诺超高温晶体纤维材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap