论文部分内容阅读
联邦德国曼内斯曼—德马克冶金技术公司(Mannesman Demag Hrtentechnik)发明了精炼法(MRP),为铸钢车间和小型钢厂找到了用5～130吨转炉生产优质钢的最佳工艺条件。 金属精炼法是一种二次冶炼法。 熔融金属从预熔装置倒入底吹转炉中,计算好的可燃气体从底部吹进精炼转炉以获得有利的热力条件。利用氧气、氩气和氮气成分的各种变化组合,该工艺可以处理各种牌号的钢。吹入MRP转炉的可燃气体数量和速度是完全自动控制的。 本文将摘要介绍42CrMo4和X2CrNiMo18112两种合金钢的精炼工艺过程。 1983年底,两台MRP转炉先后在联邦德国顺利投产。一台安装在Messrs. PHBWeserhuette in st. Lngbert;另一台安装在Messrs. C.Grossmann in Solingen。两台设备的公称容量都是8吨。18个多月的运行结果已经记录下来并以表格形式列出。该结果证实了MRP转炉有极佳的经济可行性,并且表明最终产品在物理和机械性能上都有所改善。
Federal Republic of Germany Mannesman Demag Hrtentechnik invented the refining method (MRP) and found the optimal process conditions for steel foundries and small mills to produce high quality steel from 5 to 130 tons of converter. Metal refining method is a secondary smelting method. The molten metal is poured from the pre-melting device into the bottom blown converter, and the calculated combustible gas is blown from the bottom into the refining converter for favorable thermal conditions. Utilizing a combination of variations of oxygen, argon and nitrogen compositions, the process can handle a variety of grades of steel. The amount and speed of combustible gas blown into the MRP converter is fully automatic. This article will summarize the 42CrMo4 and X2CrNiMo18112 two kinds of alloy steel refining process. The end of 1983, two MRP converter successively in the Federal Republic of Germany successfully put into operation. One was installed at Messrs. PHBWeserhuette in st. Lngbert; the other at Messrs. C. Grossmann in Solingen. The nominal capacity of both equipment is 8 tons. The results of more than 18 months of operation have been recorded and tabulated. The results confirm the excellent economic viability of the MRP converter and show that both the physical and mechanical properties of the final product are improved.