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1.In this paper the main factors affecting hydrogen content and relationship between effectiveness of dehydrogenation and technical parameters in ASEA-SKF refined steel are studied.
本文研究了ASEA-SKF钢包精炼炉在处理钢液时影响含氢量的主要因素及脱氢效果与工艺参数之间的关系。收藏指正
2.The ingot iron containing extra-low sulfur and phospnorus, which has been pretreated with dealuminization, is refined into the steel 42CrMo in a 50 kg vacuum induction furnace by way of primary and secondary deoxidizations using carbon and alloying process. Then, the steel is remelted twice in a vacuum electron-beam melting (EBM) furnace to obtain 42CrMo steel ingots of which the total oxygen content T.
具体工艺措施为:经过预脱铝处理的超低S、P工业纯铁,在50kg真空感应炉中依靠碳氧脱氧反应进行初脱氧、深脱氧和合金化处理,炼成42CrMo钢,最后在电子束炉中经过两次重熔,得到全氧量为T.收藏指正
3.It also produced 419,800 tons of refined sugar, 1.3183 million tons of steel, 9.8129 million tons of cement and 729,000 tons of chemical fertilizer.
机制糖41.98万吨、钢131.83万吨、水泥981.29万吨、化肥72.9万吨。收藏指正
4.Study on the Prevention of Nozzle Scab from Liquid Steel for Billet CC Refined by ANS?OB
ANS-OB法精炼钢水配小方坯连铸防止水口结瘤的研究收藏指正
5.Nitrogen alloying process was set up by theories of nitrogen dissolved and degassed in stainless steel refined in AOD.
介绍了AOD炉运用氮气在不锈钢中溶解与脱除理论所开发的氮合金化工艺。收藏指正
6.Molten steel containing both manganese and chrome had been refined by the molten slag of CaO-SiO2FeO-MnO-Cr2O3-MgO System under AC arc and DC arc with 200A and 32D - 350A(steel bath as anode).
研究交流电弧和200A及320－350A的直流电弧（金属熔池为阳极）熔炼钢液时的渣/金反应。收藏指正
7.It is indicated that crystal grain was refined apparently and dendritic crystal was reduced obviously by means of air cooling. Pearlitic crystal of HP295 steel was found to have changed evidently after treated by electric pulse and Brinell hardness was increased remarkably.
结果表明,将处理过的钢液在空气中冷却,晶粒明显得到了细化、枝晶大大减少,经过电脉冲处理后的HP295钢的珠光体形态发生了显著的变化,布氏硬度明显提高。收藏指正
8.The Φ110 mm bar products of steel 3Cr2W8V were forged from 740 kg ingot melted by 15 t EAF and refined by 25 t LF.
采用15tEAF冶炼,25tLF精炼,740kg铸锭锻制成Φ110mm的3Cr2W8V钢材。收藏指正
9.The results showed that,after suspension treatment,the solidification structures of the cast hot work die steel are refined,segregation tendency of composition is reduced,hardness of castings is increased from HRC 39 5 to HRC 44 15,impact toughness from 20 26J/cm 2 to 54 82J/cm 2,hot fatigue is raised one time,uniformity of the mechanical properties in section of test block and wear resistance are considerably improved,which can meet the requirements of application for hot work dies.
结果表明，悬浮处理后的铸造热锻模具钢，结晶组织得到细化，偏析倾向减小，铸件硬度从HRC39?5提高到44?15，冲击韧性从20?26J／cm2提高到54?82J／cm2，抗热疲劳性提高了约一倍，断面力学性能的均匀性和耐磨性均有较大幅度的提高，可满足热锻模具使用性能的要求。收藏指正
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