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采用合金化氮,对提高特殊钢的机械性能是可行的,特别是对于锻造锭坯更重要。其所需的氮含量水平高于氮在大气压下的溶解度。为此,已经开发了压力重熔工艺,可以提高氮在合金中的溶解量。 1979年Krupp公司与Inteco公司签订一项合同,建造一台工业规模的压力电渣重熔(ESR)设备,生产直径达1000mm,重量为14.5t的锭子,最大工作压力达42个大气压。这
The use of alloying nitrogen, to improve the mechanical properties of special steel is feasible, especially for forging ingot more important. The level of nitrogen required is higher than the solubility of nitrogen at atmospheric pressure. For this reason, pressure remelting processes have been developed to increase the amount of nitrogen dissolved in the alloy. In 1979 Krupp signed a contract with Inteco to build an industrial-scale ESR plant that produces spindles up to 1000mm diameter and 14.5t weight with a maximum working pressure of 42 atmospheres. This