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加入小量钒使硅锰钢合金化,可以在提高强度的同时保持塑性和韧性。由于发展高强度钢管用钢的生产,这个问题更加现实了。用于大直径煤气和石油干线管道的17锰2硅钒(17Г2СФ)和28锰2硅钒删(28Г2СФБ)等钢种,就是用锰硅钒综合合金化的。但是,用少量含有必要合金化元素的铁合金使钢合金化,会使冶炼工艺变得复杂,增加钒的烧损。使用标准钒铁还增加钢的成本。这个缺点,可借采用新的锰硅钒复合合金而在很大程度上消除。该合金含50~55%锰,3~5%钒,和155左右的硅,熔点为1200~1210℃,所以,可以把它作为合金化元素加在钢水包中。
Adding a small amount of vanadium to alloying Si-Mn steels can improve strength while maintaining ductility and toughness. This problem is even more realistic thanks to the development of steel for high strength steel pipe production. For large-diameter gas and oil pipelines, 17 manganese 2 silicon vanadium (17Γ2СФ) and 28 manganese 2 silicon vanadium (28Г2СФБ) and other steel grades, is the use of manganese silicon vanadium alloyed. However, alloying the steel with a small amount of iron alloy containing the necessary alloying elements complicates the smelting process and increases the loss of vanadium. The use of standard ferro-vanadium also increases the cost of steel. This shortcoming can be largely eliminated by using a new manganese-silicon-vanadium composite alloy. The alloy contains 50-55% manganese, 3-5% vanadium and about 155% silicon with a melting point of 1200-1210 ° C so that it can be added to the ladle as an alloying element.