This study reviews the development of Baosteel＇ s pipeline steel over the last 20 years. Energy demand accelerates the development of high-grade pipeline steel as well as modem petroleum and natural gas pipeline cons...This study reviews the development of Baosteel＇ s pipeline steel over the last 20 years. Energy demand accelerates the development of high-grade pipeline steel as well as modem petroleum and natural gas pipeline construction. Pipeline steel is a kind of typical modem microalloyed steel produced via thermo-mechanical controlled processing. The development process of pipeline steel at Baosteel represents the course of the technological progress of pipeline steel in China. In the last two decades, Baosteel＇ s pipeline steel has been developed from a single product of hot- rolled strips to a variety of products including hot-rolled strips, heavy plates, high-frequency electric resistance welded （HFW） pipes and U-ing-O-ing-Expanding （UOE） welded pipes. Moreover, the proportion of the HFW and the UOE welded pipes has been increasing year by year. UOE longitudinal submerged arc welding （SAW） pipes have become the leading product of strategic significance in Baosteel＇ s pipeline steel family. Over the last 20 years, Baosteel＇ s pipeline steel products have shifted from ＂ferrite ＋ pearlite＂ X52 to ＂acicular ferrite＂ XT0 and X80, and Baosteel has developed hydrogen-induced cracking （HIC） resistant pipeline steel. Baosteel＇ s pipeline steel products have been applied in variety of geographical areas,including deserts, Gobi, mountains,plains as well as the ocean. And both the X100 and the X120 ultra high strength pipeline steels have been produced on a trial basis. Baosteel has accumulatively produced 6.5 Mt of pipeline steel for both domestic and overseas projects. Baosteel will continue strengthening its strategic cooperation with oil companies, and conducting research on ultra high strength pipeline steel, pipeline steel for strain-based design and submarine pipeline steel,etc. , so as to meet the need of construction in the future.展开更多
This paper presents the applications of vibration monitoring and a diagnosis technique on the predictive maintenance of pipe line pumps on offshore platforms. The monitored ten pumps are distributed on the past three...This paper presents the applications of vibration monitoring and a diagnosis technique on the predictive maintenance of pipe line pumps on offshore platforms. The monitored ten pumps are distributed on the past three petroleum platforms of the CACT (C: China offshove Southern; A: Agip; C: Chivron; T: Texaco) Operation Group in the Huizhou oil field. By the periodical vibration survey in recent three years, the typical faults and the vibration features of these pumps have been summarized, which set up the basis for efficient predictive maintenance of this key equipment offshore.展开更多
通过对100 t LF精炼37Mn5套管钢时1 540～1580℃钢水中稳定氧化物夹杂含量与T[O]的关系以及钢-渣平衡时渣碱度对钢中活性氧含量影响的分析,提出降低钢中T[O]和夹杂物含量的改进工艺措施。热力学计算和试验结果表明,当[Al]s为0.03%～0.0...通过对100 t LF精炼37Mn5套管钢时1 540～1580℃钢水中稳定氧化物夹杂含量与T[O]的关系以及钢-渣平衡时渣碱度对钢中活性氧含量影响的分析,提出降低钢中T[O]和夹杂物含量的改进工艺措施。热力学计算和试验结果表明,当[Al]s为0.03%～0.04%,精炼渣碱度为3,(CaO)/(Al_2O_3)=3～3.5时,37Mn5钢中的氧含量降到10×10^(-6),管材基本消除了粗系夹杂,细系夹杂A+B+C+D≤5.0级,达到使用要求。展开更多
文摘This study reviews the development of Baosteel＇ s pipeline steel over the last 20 years. Energy demand accelerates the development of high-grade pipeline steel as well as modem petroleum and natural gas pipeline construction. Pipeline steel is a kind of typical modem microalloyed steel produced via thermo-mechanical controlled processing. The development process of pipeline steel at Baosteel represents the course of the technological progress of pipeline steel in China. In the last two decades, Baosteel＇ s pipeline steel has been developed from a single product of hot- rolled strips to a variety of products including hot-rolled strips, heavy plates, high-frequency electric resistance welded （HFW） pipes and U-ing-O-ing-Expanding （UOE） welded pipes. Moreover, the proportion of the HFW and the UOE welded pipes has been increasing year by year. UOE longitudinal submerged arc welding （SAW） pipes have become the leading product of strategic significance in Baosteel＇ s pipeline steel family. Over the last 20 years, Baosteel＇ s pipeline steel products have shifted from ＂ferrite ＋ pearlite＂ X52 to ＂acicular ferrite＂ XT0 and X80, and Baosteel has developed hydrogen-induced cracking （HIC） resistant pipeline steel. Baosteel＇ s pipeline steel products have been applied in variety of geographical areas,including deserts, Gobi, mountains,plains as well as the ocean. And both the X100 and the X120 ultra high strength pipeline steels have been produced on a trial basis. Baosteel has accumulatively produced 6.5 Mt of pipeline steel for both domestic and overseas projects. Baosteel will continue strengthening its strategic cooperation with oil companies, and conducting research on ultra high strength pipeline steel, pipeline steel for strain-based design and submarine pipeline steel,etc. , so as to meet the need of construction in the future.
文摘This paper presents the applications of vibration monitoring and a diagnosis technique on the predictive maintenance of pipe line pumps on offshore platforms. The monitored ten pumps are distributed on the past three petroleum platforms of the CACT (C: China offshove Southern; A: Agip; C: Chivron; T: Texaco) Operation Group in the Huizhou oil field. By the periodical vibration survey in recent three years, the typical faults and the vibration features of these pumps have been summarized, which set up the basis for efficient predictive maintenance of this key equipment offshore.
文摘通过对100 t LF精炼37Mn5套管钢时1 540～1580℃钢水中稳定氧化物夹杂含量与T[O]的关系以及钢-渣平衡时渣碱度对钢中活性氧含量影响的分析,提出降低钢中T[O]和夹杂物含量的改进工艺措施。热力学计算和试验结果表明,当[Al]s为0.03%～0.04%,精炼渣碱度为3,(CaO)/(Al_2O_3)=3～3.5时,37Mn5钢中的氧含量降到10×10^(-6),管材基本消除了粗系夹杂,细系夹杂A+B+C+D≤5.0级,达到使用要求。
