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Title:
FILTER CORE COMPRISING IRON-ALUMINUM-BASED INTERMETALLIC COMPOUND AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/139081
Kind Code:
A1
Abstract:
Disclosed is a filter core comprising an Fe-Al intermetallic compound. The filter core comprises: at least two filter core components and a stiffening rib (9) transversely welding the two filter core components together. Each of the filter core components comprises at least two filter core powder tubes (2) comprising the Fe-Al intermetallic compound and a connection member weldingly connecting the at least two filter core powder tubes comprising the Fe-Al intermetallic compound end to end. Each of the at least two filter core powder tubes comprising the Fe-Al intermetallic compound comprises a base framework (7) and a surface filter membrane (8) disposed on an exterior of the base framework. The base framework is composed of pre-alloyed powder of the Fe-Al intermetallic compound having been pressed and sintered. The filter core comprising the Fe-Al intermetallic compound has the advantages of high precision, high throughput, low flow resistance, good backwash regeneration performance and excellent overall structural strength. Also disclosed is a preparation method for the filter core comprising the Fe-Al intermetallic compound.

Inventors:
GU HU (CN)
YANG JUNJUN (CN)
WANG FAN (CN)
LIU GUANYING (CN)
ZHANG YU (CN)
DAI YING (CN)
YANG XUAN (CN)
WANG KUN (CN)
LIN SHIYU (CN)
Application Number:
PCT/CN2020/094403
Publication Date:
July 15, 2021
Filing Date:
June 04, 2020
Export Citation:
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Assignee:
AT&M ENVIRONMENTAL ENGINEERING TECH CO LTD (CN)
International Classes:
B23K28/02; B22F3/12
Foreign References:
CN111098051A2020-05-05
CN102489079A2012-06-13
CN103357881A2013-10-23
CN102489078A2012-06-13
CN204073574U2015-01-07
CN101890500A2010-11-24
JPH0318483A1991-01-28
Attorney, Agent or Firm:
CHINAREALS INTELLECTUAL PROPERTY AGENCY (BEIJING) OFFICE (CN)
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