摘要
回顾我国油气输送管道工程、高钢级管线钢和钢管的研发应用历程及取得的成果,指出它们的发展方向。我国油气输送管道工程、高钢级管线钢和钢管的研发应用具有研发周期短、应用速度快、实施效果好等显著特点。经过近20年的努力,我国在油气输送管道,特别是大口径、高压力输送管道,管型、钢级、材质、尺寸等参数优化和高钢级管材研发应用等方面达到国际领先水平。研发形成了X70/X80钢级材质选用、针状铁素体管线钢组织分析鉴别与评定技术、管型选用和螺旋埋弧焊管残余应力控制技术、高压输气管道断裂控制技术、地震断裂带等基于应变设计地区管材变形控制技术、厚壁高钢级管线钢及钢管试验检测评价技术、高钢级管线钢焊接热影响区局部脆化的脆化机理、断裂规律与预防技术。自主研发了X70/X80系列热轧板卷和大口径厚壁螺旋埋弧焊管制造技术、宽厚板和大口径厚壁直缝埋弧焊管制造技术、感应加热弯管和管件成分设计及制造工艺技术。将Ⅰ类地区的设计系数提高到了0.8,将X80管材口径扩大至1 422 mm,初步完成X90管线钢和钢管的研制。为更好地满足大口径高压力输气管道工程发展的需求,必须进一步深化应用基础研究,联合进行产品研发与技术攻关,形成大口径高钢级输气管道输量与其他参数(压力、钢级、设计系数、管径、壁厚等)的优化技术。建立或完善管道应变设计、可靠性设计、高压输气管道断裂控制等理论和方法。研究解决X90~X120高钢级管线钢和钢管屈强比、应变时效、低温韧性、屈服强度测试等关键技术难题,掌握高钢级管材成分、组织、性能、工艺等的相关性。联合冶金和制管企业,形成批量生产能力。研究形成X90~X120管材现场焊接技术,进一步提高环焊缝质量性能水平。最终实现高钢级管线钢和钢管生产和应用�
This paper reviews the research, development and achievement of high grade pipeline steels, steel pipes and oil and gas pipelines in China and their development trends. In China, the research and development of oil and gas pipelines, high grade pipeline steels and steel pipelines has the following characteristics. 1) The research and development cycle is short; 2) The research results can be applied quickly; 3) The application effects are good. After nearly 20 years of effort, China has reached an advanced level in the following two aspects. One is the parameter optimization technology of pipe type, steel grade, materials and size of oil and gas transportation pipelines with large-diameters and high pressures. Another is the research and application of high grade pipe steels. Basic research into steel and pipeline technologies has achieved substantial progress in China. This includes the materials selection of X70/X80 grade steel, the identification and examination of the acicular ferrite pipeline steel microstructures, the pipe type selection and the residual stress control technology of spiral submerged-arc welding pipes, the fracture control technology of high pressure gas pipelines, pipeline deformation control technology in the areas of strain-based design, the testing and evaluation technology of high grade and thick wall pipeline steels and steel pipes and the embrittlement mechanisms, fracture occurrence and prevention technology of the high grade steel pipeline steels in heat affected welding areas. The design factor of class I area was enhanced to 0.8. A lot of new technologies were also developed in product research. The X70/X80 hot rolled plate and the large-diameter thick wall longitudinal submerged arc-welded pipe manufacture technology, the induction bends and the fitting material design and the manufacture technology were exploited. The diameter of X80 steel pipes was expanded to 1422 mm. The preliminary research into X90 pipe has been finished. In order to better meet the requirement of large-dia
出处
《石油科学通报》
2016年第1期143-153,共11页
Petroleum Science Bulletin
关键词
高钢级管线钢
高钢级管线钢管
管线
应用基础研究
研究进展
发展展望
high grade pipeline steel
high grade steel pipe
pipeline
basic research
research progress
development prospect
