自升式钻井平台桩腿半圆板的热处理工艺
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摘要
采用自主设计的压制设备对A517Gr.Q钢板进行半圆成型压制,制备了500英尺自升式钻井平台桩腿半圆板部件,并用自主研发的定量精准热处理技术对其进行热处理。结果表明:自制半圆板部件具有细小的强韧化组织结构,力学性能得到明显提高,尤其是低温冲击韧性大大提高,比美国船级社(ABS)的技术要求高出1～2倍,延长了桩腿的服役寿命。
Chord part for 500 feet jack-up drilling platform leg was prepared by using of A517Gr.Q steel plate and self-designed pressing equipment,then heat treated by self-developed quantitative precise heat treatment technology.The results show that the mechanical properties of the chord parts is improved remarkably due to their fine,strong,and toughening microstructure.Especially,the impact toughness at low temperature is greatly improved,which is 1-2 times higher than the technical requirements of ABS and prolongs the service life of pile legs.
Chord part for 500 feet jack-up drilling platform leg was prepared by using of A517Gr.Q steel plate and self-designed pressing equipment,then heat treated by self-developed quantitative precise heat treatment technology.The results show that the mechanical properties of the chord parts is improved remarkably due to their fine,strong,and toughening microstructure.Especially,the impact toughness at low temperature is greatly improved,which is 1-2 times higher than the technical requirements of ABS and prolongs the service life of pile legs.
引文
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[3]吴小平,陆晟.自升式钻井平台环境载荷及结构强度[J].船舶与海洋工程,2010(3):36-40.Wu Xiaoping,Lu Sheng.Environmental load and structural strength of jack-up drilling platform[J].Naval Architecture and Ocean Engineering,2010(3):36-40.
[4]罗宏志,蒙占彬.国内深水自升式钻井平台发展概况[J].中国海洋平台,2010,25(4):4-7.Luo Hongzhi,Meng Zhanbin.General situation of deep water selfelevating drilling unit develop in China[J].China Offshore Platform,2010,25(4):4-7.
[5]田梦.500英尺自升式钻井平台总体设计研究[D].大连:大连理工大学,2013.
[6]胡刚,顾海英,杨晓丹,等.自升式平台桩腿的模型试验及数值仿真研究[J].造船技术,2016(3):21-25.Hu Gang,Gu Haiying,Yang Xiaodan,et al.The model test and numerical simulation for legs of jack-up platform[J].Marine Technology,2016(3):21-25.
[7]ASTM International.A517/A517M-06,Standard specification for pressure vessel plates,alloy steel,high-strength,quenched and tempered[S].West Conshohocken:ASTM International,2006.
[8]郭忠,侯志刚,应华,等.面向制造与热压工艺的半弦管模具设计[J].烟台大学学报(自然科学与工程版),2015,28(2):151-156.Guo Zhong,Hou Zhigang,Ying Hua,et al.Design of semi-chord mold for manufacturing and hot pressing process[J].Journal of Yantai University(Natural Science and Engineering Edition),2015,28(2):151-156.
[9]Funatani K.New quenchant and cooling technology,current status and future[C]//Proceedings of the 3rdInternational Conference on Quenching and the Control of Distortion.ASM International Czech,1999:5.
[10]《热处理手册》编委会.热处理手册:第三分册[M].北京:机械工业出版社,1982:604-618.
[11]戚正风,张洪哲.高温形变淬火强韧化机理探讨[J].材料热处理学报,1982(2):1-10.