Title:
PRODUCTION PROCESS AND DEVICE FOR SILICON NITRIDE WAVE-ABSORBING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2024/051305
Kind Code:
A1
Abstract:
The present invention relates to a process technology and device, specifically a production process and device for a silicon nitride wave-absorbing material. The production process comprises preparing a premixed solvent, preparing dry powder, preparing a base material, forming the material, and sintering. By means of the device in the present invention, preparation of the dry powder, preparation of the premixed solvent, and preparation of the base material are carried out in a sealed container, and intervention of external interfering substances is avoided. The device in the present invention comprises a powder preparation assembly and a uniform dispersion assembly. When a rolling structure rotates around the central axis of a crushing barrel, the rolling structure can press and grind particles in the crushing barrel along the circumference; the pressing and grinding force is in a positive correlation with the rotation speed of the rolling structure; powder preparation and dispersion are synchronously and integrally carried out, and the procedures in a conventional preparation process are simplified. Moreover, compared with mechanical forced crushing in a conventional process, in the present invention, the pressing and grinding force can be matched with the rotation peed of the rolling structure, abrasion is smaller, and the service life is longer.
Inventors:
XIAO LIANG (CN)
ZHU FULIN (CN)
ZENG XIAOFENG (CN)
XU TAO (CN)
QIAN LIHONG (CN)
ZHU FULIN (CN)
ZENG XIAOFENG (CN)
XU TAO (CN)
QIAN LIHONG (CN)
Application Number:
PCT/CN2023/103526
Publication Date:
March 14, 2024
Filing Date:
June 29, 2023
Export Citation:
Assignee:
HENGYANG KAIXIN SPECIAL MATERIAL TECH CO LTD (CN)
International Classes:
C04B35/80; C04B35/584; C04B35/622; C04B35/638
Foreign References:
| CN115368154A | 2022-11-22 | |||
| CN207254126U | 2018-04-20 | |||
| CN203750607U | 2014-08-06 | |||
| CN111167339A | 2020-05-19 | |||
| CN217856485U | 2022-11-22 | |||
| CN218132231U | 2022-12-27 | |||
| JPS5829861A | 1983-02-22 | |||
| DE2340726A1 | 1975-02-13 | |||
| CN115490945A | 2022-12-20 |
Attorney, Agent or Firm:
BEIJING FINELAND IP FIRM (CN)
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