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首页> 外文会议>Ninth international conferece on molten slags, fluxes and salts >Usage of worked-out metallurgical slag in electroslag remelting processes
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Usage of worked-out metallurgical slag in electroslag remelting processes

机译：炼钢渣在电渣重熔过程中的使用

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摘要

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.
机译：钢铁生产中有经济，技术有效的技术，金属中的硫，磷，氧和氢含量低。结果，在电渣重熔中不需要特别地从杂质中提纯金属。重熔的主要目的是在保持低氢含量的同时获得良好的结构，并增加重熔过程本身的技术和经济依据。开发了基于精炼冶金渣的低碱酸比新一代焊剂。已经在实验室和工业条件下研究了这种焊剂的物理，物理化学，技术性能，被研究的焊接金属的结构和性能。对ESR工艺的技术参数进行了评估。结果表明，建议的助焊剂是可行的，其应用可提供一致的高速ESR工艺，可将耗电量降低1.5倍，并提供具有良好表面质量的金属焊接。与广泛使用的CaF2-Al2O3助焊剂ANF-6相比，建议的助焊剂可更好地保护焊接金属免受氢饱和的影响。在CaF2-Al2O3助熔剂下重熔后，在该助熔剂下焊接的铸造金属的机械性能与锻钢接近。

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