| 摘要 |
<p>An object of the invention is to provide a method of manufacturing aluminum alloy by effectively using the aluminum residuum containing a low percentage of metal aluminum as industrial wastes. As the component ratio of a briquette of aluminum residuum, a mass of silica rock and a mass of anthracite, the weight percentage of Al2O3:SiO2:C=40:33:27 is maintained. The blending having a maintained weight percentage is continuously introduced into the electric furnace for producing carbide. The electric furnace is provided with three self-baking electrodes having a diameter of 1400mm, and a transformer capacity of 30,000KVA. While the electrodes are embedded at the depth of about 1m and the temperature in the electric arc range is kept between 2200.degree.C and 2400.degree.C, the melting reduction is carried out. When 170 tons of aluminum residuum briquette were completely introduced into the electric furnace, 100 tons of Al-Si-Fe alloy were obtained. The aluminum alloy can be used as deoxidizer or temperature raising agent in the iron and steel manufacture with variously developed manufacture processes and needs.</p> |
