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苏联哈尔科夫机械厂将高强度铸铁代替КЧ30—6可锻铸铁,用以制造小型机械附件。这是将普通冲天炉铁水注入特制的炉中,经电渣过热精炼后,以Mg为中间合金进行处理而得到的新材料。电渣处理炉由内涂氧化镁粉末的石墨坩埚、固定两枚石墨电极的机臂及遥控装置组成(电源由焊接变压器供给).相应的规范值为:电流I_(工作)=800—900A,电压V_(工作)=30—40V.将含有2.7—3％C,0.9—1.3％Si,0.4—0.6％Mn,0.15—0.2％S的铁水于1 330—1340℃时注入炉内,利用特殊的熔剂
Kharkiv Machinery Factory of the Soviet Union will be high-strength cast iron instead of КЧ30-6 malleable iron, used to manufacture small mechanical annex. This is a common cupola hot metal into a special furnace, the superheat refining by electroslag, with Mg as the master alloy obtained by processing new materials. The ESR furnace is composed of a graphite crucible with magnesium oxide powder coated inside, an arm holding two graphite electrodes and a remote control device (the power supply is provided by a welding transformer), the corresponding standard values are: current I_ (working) = 800-900A, The voltage V_ (work) = 30-40V. The molten iron containing 2.7-3% C, 0.9-1.3% Si, 0.4-0.6% Mn and 0.15-0.2% S was injected into the furnace at 1 330-1340 ° C., Of flux