金属热处理
金屬熱處理
금속열처리
HEAT TREATMENT OF METALS
2015年
4期
146-148
,共3页
高强度钢筋%控轧控冷%晶粒细化%晶粒度
高彊度鋼觔%控軋控冷%晶粒細化%晶粒度
고강도강근%공알공랭%정립세화%정립도
high strength reinforced bar%TMCP ( Thermo Mechanical Control Process)%grain refinement%grain size
利用高线控轧控冷技术轧制无微合金低锰细晶高强度钢筋，轧制温度区间为部分奥氏体未结晶区，阐述了在控轧过程中加热温度与水冷控制对晶粒尺寸的影响。通过抽样检测，表明控制加热温度在995℃左右，进精轧机温度800℃左右，得到的无微合金低锰钢筋的晶粒尺寸已接近超细晶微合金化高强度钢筋的极值范围(5~10μm)。
利用高線控軋控冷技術軋製無微閤金低錳細晶高彊度鋼觔，軋製溫度區間為部分奧氏體未結晶區，闡述瞭在控軋過程中加熱溫度與水冷控製對晶粒呎吋的影響。通過抽樣檢測，錶明控製加熱溫度在995℃左右，進精軋機溫度800℃左右，得到的無微閤金低錳鋼觔的晶粒呎吋已接近超細晶微閤金化高彊度鋼觔的極值範圍(5~10μm)。
이용고선공알공랭기술알제무미합금저맹세정고강도강근，알제온도구간위부분오씨체미결정구，천술료재공알과정중가열온도여수랭공제대정립척촌적영향。통과추양검측，표명공제가열온도재995℃좌우，진정알궤온도800℃좌우，득도적무미합금저맹강근적정립척촌이접근초세정미합금화고강도강근적겁치범위(5~10μm)。
Fine grained no-micro-alloyed high strength low manganese steel was rolled by using TMCP of high-wire rolling, rolling temperature range was in part of the austenite non-crystalline region. Effect of heating temperature and water cooling ways on grain size was analysed. Through sampling and testing, when the heating temperature is about 995 ℃ and the temperature into NTM is about 800 ℃, no micro-alloy grain size of the low-manganese steel is quite close to the extreme range (5-10 μm) of the ultrafine-grained micro-alloyed high strength steel.
