共查询到19条相似文献,搜索用时 125 毫秒
1.
2.
设计研制了生产深水油气田大口径海底管线用无缝钢管的成分要求和工艺路线。小批量试制X65QO海底管线管,试制结果表明,通过微合金成分优化(/% :0.15Mo,0.04Nb,0.09V,0.06Ti),皮尔格周轧管工艺,配合930 ℃淬火+670 ℃回火调质工艺,X65QO钢级深海海底管线管屈服强度为~500 MPa,抗拉强度为~580 MPa, -30℃低温冲击功>300J,裂纹尖端开口位移(CTOD)以及焊接性能和氢致裂纹(HIC)性能较好,完全符合用户的要求。 相似文献
3.
4.
5.
6.
介绍了微合金化X56海底管线管的研制,结果表明产品满足API5L.Spee和DNV标准技术要求,产品具有稳定的机械性能和良好的焊接性能,其焊缝低温夏比冲击功高于39焦耳。 相似文献
7.
8.
高等级管线钢的发展现状 总被引:27,自引:1,他引:26
回顾总结了近年来国际上高等级管线钢的发展.现代管线钢向高强度、大厚度、抗应变和抗HIC方向发展.为降低长距离天然气管线的建设成本,开发了X100和X120超高强度管线管,并进行了X100和X120管线试验段建设,取得了显著的进展.开发了以双相显微组织为特征的满足"基于应变设计"的抗大应变高强度管线钢,强度等级从X65至X100,可应用于冻土带、地震区和水土流失区域的管线建设.海底管线用钢和抗HIC管线管的强度等级已从以往的X65提高到X70,X70管线管的最大壁厚可达34.1 mm,并已批量在工程中应用.新型的HTP高强度管线钢采用超低碳高铌含铬的成分设计,具有十分优良的性能,用铬替代钼可显著地降低成本,生产的X80管线管已应用于美国第一条X80管线. 相似文献
9.
总结了X60钢级海底无缝管线管的研发工作,阐述了微合金化钢种的设计方法。归纳了生产控制过程中的难点,介绍了生产工艺流程和热处理工艺的制定,提出了进一步改进的观点。 相似文献
10.
11.
12.
13.
通过对供翼宁管线工程用针状铁素体X70的生产实践,积累了大量的生产资料和生产经验,提出了适合本钢的生产工艺路径、成分设计思想及技术手段,为全面了解本钢的生产实际情况及今后大批量生产针状铁素体X70管线钢打下了良好的基础。 相似文献
14.
15.
在济钢条件下,采用常规的铁水脱硫加转炉双渣的冶炼工艺生产低磷钢,很难将成品w(P)稳定控制在0.010%以下。基于转炉双渣大渣量生产试验,采用回归分析研究了影响冶炼过程脱磷效率的主要因素,确定了最佳的双渣吹炼时间、过程温度和炉渣成分控制,大幅度提高了冶炼过程的脱磷效率。该工艺在9Ni、高级别管线(X90/X100)的生产中得到广泛应用,成品w(P)稳定控制在0.006%以下,最低达到了0.004%,实现了低磷钢的批量生产。 相似文献
16.
《钢铁研究学报(英文版)》2011,(Z1):39-48
It is the development tendency of gas pipeline to improve strength of line pipe and transmission pressure, which is an important symbol of the progress of gas pipeline technology. The 2nd West-East Gas Pipeline (the 2 nd WEGP) is the largest-scale X80 high pressure gas pipeline project in the world. Through the joint development project by Pipeline Company, research institute, and steel company, a series of achievements of technology have been obtained, which makes it possible to apply pressure of 12 MPa and X80 LSAW and HSAW pipe for the 2 nd WEGP. Specifications of X80 steel and pipe have been issued based on API 5L. High performance X80 steel and pipe have been developed and meets the Specification. General design conception of applying HSAW pipe and LSAW pipe on gas transmission trunk line with large diameter and high pressure has been established. Failure control of the 2 nd WEGP has been carried out to avoid failure and reduce the lost which based on analysis of pipeline failure mode. In this paper, research and development of high performance X80 welded pipe, establishment of technical route of joint application of HSAW and LSAW steel pipe and key technology of failure control are emphatically discussed. 相似文献
17.
18.