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高尔基汽车制造厂利用生产铁素体可锻铸铁的白口铁生产出珠光体可锻铸铁.用电弧炉——冲天炉双联法熔炼白口铁,其成份(%):C 2.4—2.6,Si1.1—1.3, Mn0.40—0.48,Cr＜0.06,S＞0.06.用碲、铝和硼酸混合物进行孕育处理.在ΠЭο—16型电炉中对铸件进行热处理,珠光体可锻铸铁循环退火l8小时,铁素体可锻铸铁循环退火32小时.由珠光体可锻铸铁生产的铸件只有两种,占可锻铸铁产量的l%.因此,在同一炉中用单炉料生产珠光体和铁索体可锻铸铁,并在浇包中对两种合金进行相应的孕育处理,
Gorky Automotive Manufacturing Co., Ltd. produces pearlitic malleable cast iron from white iron produced from ferritic malleable cast iron. The white iron is melted by the electric arc furnace-cupola combined method. The composition (%) is C 2.4-2.6, Si1.1- 1.3, Mn0.40-0.48, Cr <0.06, S> 0.06. Tempering with a mixture of tellurium, aluminum and boric acid. The castings were heat treated in a ΠЭο-16 electric furnace, pearlite malleable cast iron cycle annealing l8 hours, ferrite The malleable iron was annealed for 32 hours in cycles and there were only two castings made of pearlite malleable cast iron, representing 1% of the production of malleable cast iron.Therefore, pearlite and ferrochromic malleable cast iron were produced from a single charge in the same furnace and the two alloys The corresponding breeding process,