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武钢第一炼钢厂从“美国USS工程咨询公司”引进的“马克法设备和工艺”,于1988年8月19日投入试运转和试生产。用该套设备和工艺能生产出外沸内镇或外沸内半镇(即MA-RK和MA-RS)的钢锭。这种加液态铝生产出来的钢锭比用常规加铝丸工艺生产出的钢锭,其表面质量要好,酸溶铝的分布更均匀,钢锭底部的Al_2O_3含量低,可以得到“饼形”晶粒的深冲钢结构的金相组织。因此,用这种钢锭生产的冷轧薄板和镀锡板,可广泛用来制造汽车上所有需深冲的部件、民用搪瓷板、食品罐头盒、航空用具以及防爆的深冲容器。试生产中,钢水是由顶吹氧气平炉冶炼的,C、Si、Mn、P、S的含量均低,氧化度适中。炉后采用直径为70毫米的复合材质大滑板和水口浇注,锭模为F11.18吨,模壁和底板均涂有专用涂料,实行快速上注。每
The first steelmaking plant of WISCO was put into trial operation and trial production on August 19, 1988 with the introduction of “Mark Law Equipment and Technology” from “US USS Engineering Consulting Company”. With this set of equipment and processes it is possible to produce ingots in the outer or inner boiling boilers (MA-RK and MA-RS). The steel ingot produced with liquid aluminum has better surface quality, more uniform acid-soluble aluminum distribution and lower content of Al 2 O 3 at the bottom of the steel ingot than the steel ingot produced by using the conventional aluminum-adding process, thereby obtaining “cake-shaped” Deep-drawn steel structure of the microstructure. Therefore, the cold-rolled sheet and tinplate produced from this steel ingot can be widely used for manufacturing all deep-drawn parts, civil enamel plates, food cans, aviation appliances and explosion-proof deep-drawn containers in vehicles. Trial production, the molten steel is top-blown oxygen furnace smelting, C, Si, Mn, P, S were low, moderate oxidation degree. After the furnace with a diameter of 70 mm composite skateboards and nozzle pouring, ingot mold F11.18 tons, mold wall and the floor are coated with a special coating, the implementation of rapid betting. each