冶金部矿冶研究总院于六十年代初从事加压氢还原技术的研究,先后从镍、钴和铜的处理液中提取出金属粉。七十年代初,这项技术被用来从金属盐的溶液中制取复合粉。经过几年的研究,相继制成镍包铝、镍包铜、镍包石墨和钴包碳化钨等廿余种复合粉,并以氢还原法与其它方法相结合的工艺 Ministry of Metallurgical Research Institute of Mining and Metallurgy in the early sixties engaged in pressurized hydrogen reduction technology research, successively from nickel, cobalt and copper processing liquid extracted metal powder. In the early seventies, this technique was used to make composite powders from solutions of metal salts. After several years of research, have been made of nickel-clad aluminum, nickel-clad copper, nickel-coated graphite and cobalt-coated tungsten carbide more than 20 kinds of composite powder and hydrogen reduction method combined with other processes