Research on Secondary Refining Technology for Low-sulfur and High Strength Weathering Steel
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摘要: 介绍了采用LF炉工艺生产低硫高强耐候钢的炉外精炼处理技术及其综合应用,以及为经济高效生产该系列钢所开发的新材料(钒钛微合金化包芯线)的使用情况。生产实践表明,通过选择合理的脱硫工艺和采用新型的微合金化技术,LF炉工艺生产的低硫高强耐候钢的成品成分(S、V、Ti、N、Ca等)稳定,产品力学性能和耐腐蚀性均较为优良。Abstract: Secondary refining technology for low-sulfur and high strength weathering steel was introduced,especially LF.The service condition and effect of the new material(the vanadium-titanium-micralloyed coreline)were detailed.As a result,the production became economic and efficient.Practice shows that through choosing reasonable desulfurization process and using new technologies of microalloying,the product composition(S、V、Ti、N、Ca etc.)of low-sulfur and high strength weathering steel is stable by LF refining,the mechanical properties and corrosion resistance is excellent also.
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Key words:
- weathering steel /
- secondary refining /
- refining slag /
- wash heat /
- blowing argon /
- calcium treating /
- basicity
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