METHOD OF MELTING HIGH-TEMPERATURE ALLOYS BASED ON NICKEL

文件类型：PDF文档
文件大小：226K
1. The method of production of high-temperature alloys based on nickel, including melting in open arc steel furnace small capacity, characterized in that in CPDs is semiproduct cupola melting of heat-resistant nickel alloys for further out-of-furnace treatment of at aggregate ladle - furnace and in upon. 2. Method according to Claim 1, characterized in that melt decarbonisation in upon as a result of process vacuum-oxygen refining, which excludes necessity of early slag formation in CPDs for protecting metal from of electrodes, besides, there is no necessity to control carbon content in charge materials, and the method of smelting allows to obtain osobonizko carbon nickel alloys (with carbon content to 0.03%) in open furnaces. 3. Method according to Claim 1, characterized in that metal is brought to the preset chemical composition by easily okislyayushchimsya elements (aluminium, titanium, niobiyu, rare-earth and alkali-earth elements) at aggregate ladle - furnace, enhanced accuracy of alloying of production and allows precision and slozhnolegirovannye alloys in open arc furnaces.