| 摘要 |
PURPOSE:To obtain a plate with high performance at a low production cost by preparing a cadmium plate in such a way that a specific nickel-plated, sintered iron fiber is impregnated with an aqueous solution containing cadmium nitrate and an organic corrosion inhibitor. CONSTITUTION:A sintered iron fiber is impregnated with an aqueous solution containing cadmium nitrate and a small amount of an organic corrosion inhibitor such as methanol, polyethylene glycol, or carboxymethyl cellulose, dried, and treated with an alkaline solution, for example, treated by soaking it with caustic soda solution with specific gravity of 1.28, to convert cadmium nitrate to cadmium hydroxide, and thus a plate of cadmium hydroxide is obtained. As the sintered iron fiber, an iron fiber with a porosity of 84-95% and a diameter of 4-100mu which is obtained from cutting, sintered in a reducing atmosphere, and nickel plated is used. |
