Preparation process of novel foamed nickel-aluminum electrode with open-cell structure

• Main Authors: LI WULIN, JIA BOLIN, WANG SHIWEN, XU JUNXIU, LI QING, WANG CHEN, ZHANG FENG, LI KUAN, JI XIANHUA, LI LIANGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 26.04.2024
• Subjects: APPARATUS THEREFOR; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to a preparation process of a novel foamed nickel-aluminum electrode with an open pore structure, and relates to the technical field of sewage treatment. The method comprises the following steps: filling a refractory material on a sponge prefabricated template; compacting the refractory material particles and the sponge, sintering in a heating furnace, removing the sponge prefabricated template, remaining a sintered refractory material mold, and annealing and cooling; electrolyzing the aluminum oxide solution; an electrolyzed aluminum oxide solution is cast into the refractory material mold, after casting is completed, pressure is applied to the liquid metal through a solid pressing head above the refractory material mold, the liquid metal permeates into the refractory material mold, and cooling is conducted after sealing is conducted; after cooling, standing the refractory material mold in water, and stripping and cleaning the refractory material to obtain a foamed aluminum material; an