Title:
CORROSION-RESISTANT ALUMINUM ALLOY SACRIFICIAL ANODE AND METHOD FOR PREPARATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/134573
Kind Code:
A1
Abstract:
Disclosed is a corrosion-resistant aluminum alloy sacrificial anode, consisting of aluminum, zinc, manganese, strontium, nickel, tin, and lanthanum; the mass percentage of said zinc is 5–8%; the mass percentage of said manganese is 0.1–0.3%; the mass percentage of said strontium is 0.1–0.3%; the mass percentage of said nickel is 0.2–0.5%; the mass percentage of said tin is 0.15–0.22%; the mass percentage of said lanthanum is 0.02–0.05%; the remainder is aluminum and inevitable impurities. The present invention strictly defines the content of the metallic element vanadium in the impurities, and can effectively improve the electrochemical performance of the sacrificial anode; the aluminum alloy sacrificial anode prepared by the present invention has good wear resistance and a current efficiency higher than 93%, an open circuit potential of -1.17 to -1.21 V, and a capacity of ≥1200 A-h/kg, and has broad prospects for application.
Inventors:
LU YANWEI (CN)
LIU GUANGZHOU (CN)
CHEN SHIQIANG (CN)
LIU FEIFEI (CN)
TANG BIAO (CN)
JIANG YUREN (CN)
LIU GUANGZHOU (CN)
CHEN SHIQIANG (CN)
LIU FEIFEI (CN)
TANG BIAO (CN)
JIANG YUREN (CN)
Application Number:
PCT/CN2021/108713
Publication Date:
June 30, 2022
Filing Date:
July 27, 2021
Export Citation:
Assignee:
SHANDONG DERUI ANTI CORROSION MAT CO LTD (CN)
International Classes:
C22C21/10; C22C1/02; C23F13/14
Foreign References:
| CN112760531A | 2021-05-07 | |||
| CN111936646A | 2020-11-13 | |||
| CN111705247A | 2020-09-25 | |||
| CN101693999A | 2010-04-14 | |||
| CN105063443A | 2015-11-18 |
Attorney, Agent or Firm:
BEIJING ZHUANYING PATENT AGENCY CO., LTD. (CN)
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