High-temperature-resistant sacrificial anode and preparation method thereof

• Main Authors: FENG YIBO, ZENG WENGUANG, CHEN MIAO, ZHANG JIANGJIANG, LIU QIANG, LI FANG, GUO YUJIE, HOU ZHAOFENG, MA QINGJIE, XIAO WENWEN, LIU BIN, XIE DAN, REN WENBO, LIU QINGSHAN
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2022
• Subjects: ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a high-temperature-resistant sacrificial anode which comprises the following components in percentage by mass: 3%-6% of zinc, 0.5%-2% of carbon nanoparticles, 0.05%-0.1% of indium, 0.1%-0.2% of cadmium, 0.1%-0.2% of manganese, 0.1%-0.2% of magnesium, 0.16%-0.35% of other elements and the balance of aluminum, and the other elements comprise the following components in percentage by mass: 0.08%-0.12% of cerium, 0.01%-0.02% of gallium, 0.01%-0.015% of thorium and 0.06%-0.1% of tin. The balance of other elements is impurities. By adding the carbon nanoparticles, the current efficiency of the sacrificial anode material at a high temperature is improved and the defect that the current efficiency of the sacrificial anode material at the high temperature is rapidly reduced is reduced through good conductivity and thermal stability of the carbon nanoparticles, so that the applicable temperature of the sacrificial anode material is higher; meanwhile, the carbon nano-particles are uniformly distr