【摘要】 实验室模拟热送直装生产工艺,研究不同装炉温度对产品组织和性能的影响,以实验室得出的结果为基础,提出了高性能管线钢X70钢的热装和直接装炉加热以及轧制工艺。通过三次现场试验,基本确定在同一轧制条件下,板厚为17.5 mm的X70钢可以进行直装或热装轧制,热装或直装钢板性能达到了冷装炉水平。更多还原

【Abstract】 The effect of different charging temperatures on the structure and properties of the rolled products has been studied by simulating CC-DHCR(Continuous Casting-Direct Hot Charging Rolling) process in the laboratory.On the basis of the experimental result the CC-DHCR or CC-HCR heating and rolling technology for the high property pipeline steel X70 is put forward.Through on-site experiments for three times it is proved that under the similar rolling conditions direct charging or hot charging is applicable for 17.5mm X70 pipeline steel and properties of the final rolled products by the CC-HCR process is equal to that by CC-CCR(Continuous Casting-Cold Charging Rolling) process.更多还原