Usage of worked-out metallurgical slag in electroslag remelting processes
There are economically and technically effective technologies of steel producing with low level of sulfur, phosphorous, oxygen and hydrogen in metal. As a consequence, there is no special need of refining metal from impurities in electroslag remelting. Remelting primary objective is to obtain a favorable structure while maintaining of low hydrogen content and increasing the technical and economic evidence of the remelting process itself. The new generation flux of low base-to-acid ratio based on worked-out metallurgical slag was developed. The physical, physico-chemical, technological properties of this flux, structure and properties of the investigated weld metal have been studied in laboratory and industrial conditions. The technical parameters of the process of ESR have been evaluated. It was shown that proposed flux is workable and its application provides consistently ESR process with a high speed, reduces electricity consumption up to 1,5 times and provides welding of metals with a good surface quality. Proposed flux protects the weld metal better from hydrogen saturation than widely used CaF2 - Al2O3 flux ANF-6. The mechanical properties of cast metal, welded under this flux are close to forged steel after remelting under CaF2 - Al2O3 flux.
Flux Slag recycling Electroslag remelting
Vasily E. Roshchin Nikolay V. Malkov Anton V. Roshchin
Dept. of Pirometallurgical processes, South Ural State University, Chelyabinsk, 454080, Russia
国际会议
Ninth International Conference on Molten Slags,Fluxes and Salts(第九届国际熔渣、溶剂与熔盐学术会议 MOLTEN12)
北京
英文
1-9
2012-05-27（万方平台首次上网日期，不代表论文的发表时间）