日本静岡大学石黑孝義教授研究成一项在金属材料(钢铁、有色金属及其合金)表面形成一层具有优良的耐蚀性、耐磨性及耐热性的电积膜新技术。该项新技术是在由氨基磺酸铬、氨基磺酸镍、氨基磺酸亚铁按15:1:40的摩尔比组成的电积浴中,在金属材料的表面上形成由73～74％Fe、17～19％Ni及17～19％Cr组成的相当于SUS303不锈钢 Shizuoka University, Japan, Professor Shi Xiaoyi study into a metal material (steel, non-ferrous metals and their alloys) to form a layer of excellent corrosion resistance, wear resistance and heat resistance of the new technology of electro-deposition film. The new technology is to form the surface of the metal material in a volumetric bath composed of chromium sulfamate, nickel sulfamate and ferrous sulfamate in a molar ratio of 15: 1: Fe, 17-19% Ni and 17-19% Cr, which is equivalent to SUS303 stainless steel