摘要
Ti-Nb微合金高强度钢板的生产流程为206 t顶底复吹转炉-LF-RH-230 mm铸坯-连轧成3~7 mm板工艺。将原0.045Nb-0.015Ti微合金化钢优化成0.070Ti-0.015Nb微合金化钢后,其焊接性能和低温冲击性能优良,并具有良好的综合力学性能。使用结果表明,0.070Ti-0.015Nb微合金化钢与0.045Nb-0.015Ti微合金钢相同,满足加工和服役要求,但成本有明显降低。
The production flowsheet for Ti-Nb Microalloy high strength steel plate is 206 t top and bottom combined blown converter-LF-RH-230 mm slab casting-rolling 3~7 mm plate process.Through optimizing the original 0.45 Nb-0.015 Ti microalloy steel to 0.070Ti-0.015 Nb microalloy steel has excellent welding and low temperature impact toughness properties and has better comprehensive mechanical properties.Service results show that the 0.07Ti-0.015 Nb microalloy steel is identical to 0.045Nb-0.015 Ti microalloy steel,satisfactory to requirement of process and service,while the production cost decreases obviously.
出处
《特殊钢》
北大核心
2016年第1期68-70,共3页
Special Steel
关键词
Ti-Nb微合金化
汽车用高强度钢
析出强化
Material Index Ti-Nb Microalloying
High Strength Steel for Auto
Precipitation Strengthening
