关于宝钢建设UOE钢管生产线若干技术问题探讨

论述了世界UOE机组发展概况，分析了钢管直径、壁厚、钢级等主要参数，评述了工艺流程及设备主要组成，比较了UOE与SSAW、JCOE等方法的力学原理，提出了引进UOE机组的原则。     

JFE钢铁获得面向欧洲气体输送用管线的钢材订单

正近日,JFE钢铁宣布和希腊钢管厂家CORINTH公司及伊藤忠丸红钢铁共同获得了面向欧洲气体输送用管线项目Trans Adriatic Pipeline的钢材订单,包括热轧板、厚板和UOE钢管合计7.8万t。此次订单中热轧板5.2万t、厚板2.3万t、UOE钢管3000 t,UOE钢管为X70等级,口径48英寸。所有钢材由JFE钢铁西日本制铁所福山厂和东日本制铁所京滨厂生产,预计在2016年内分3次全部出厂。     

替代进口的大型UOE焊管预弯边模具技术被我联盟攻克

<正>由山东省四方技术开发有限公司和上海宝钢联合开发的国产新型UOE焊管用预弯边模具,经宝钢进口直缝埋弧焊钢管生产线巨型弯边机2 000多轧次测试表明,模具表面磨损均匀,整体表面未出现影响焊管产品质量、模具寿命的缺陷,无损探伤结果良好,宣告我国第一套自主设计制造的UOE焊管预弯边模具研制成功,这是"中国钢管和冷弯型钢工模具技术创新战略联盟"成立以来产学研用合作创新的又一个夺目成果。     

海洋管线铺设环焊技术现状及宝钢研究进展

综述了当前深水海洋管线钢管铺设方法以及对应的施工环缝焊接技术,海管高效自动环缝焊接技术成为今后的发展趋势.介绍了双车双炬熔化极气体保护自动焊接技术、闪光对焊技术、激光—电弧复合焊接技术、非真空电子束焊接技术等在海管施工焊接领域具有很大应用潜力的技术.当前,宝钢UOE钢管产品致力于高等级海管的生产与经营,在UOE海管自动环缝焊接方面开展了研究,旨在为用户提供相应技术服务与支撑.     

超高强度管线钢管X120的开发

天然气的重要性已受到人们的高度关注,但必须降低其远距离输送成本,采用高压操作、小口径薄壁干线用管是有效的办法,为此需要高强度管线钢.新日铁与世界最大的油气公司ExxonMobil公司合作开发了强度等级超过以往的X65和X80的超高强度大口径管线钢管X120.X120的生产技术要求比X65和X80更高.双方在材质设计、炼钢、浇铸、钢板生产和钢管生产(UOE成型和焊缝技术)等方面进行了系统的研究开发,完成了包括小批量生产在内的钢管开发和使用性能评价,并对管线敷设时的现场环焊实用技术等进行了综合开发.研究分析证明,X120的商业化生产是可行的.     

新日铁将建全球首家X120级高强UO钢管生产厂

新日铁公司计划在君津厂建立全球首家X120级高强UO钢管生产厂，该计划投资近40亿日元．将于2008年1月建成，3月投产，年产UO钢管50万t。     

钢管自动标号装置

日本川崎钢铁公司 UOE 电焊钢管厂研制成功钢管自动标号装置,用于直径为508～1620mm 钢管内外表面标号。自动标号装置按电子计算机给出的信号在钢管上喷涂各种需要的文字和标记,其中包括     

日本钢管公司京滨钢铁厂Φ250无缝钢管轧机情况简介及有关建议

日本钢管公司京滨钢铁厂Φ２５０无缝钢管轧机情况简介及有关建议白丙中（鞍钢情报研究所）１情况简介日本钢管公司（ＮＫＫ）在其京滨钢铁厂共设有三套热轧无缝钢管机组，年产不同直径的热轧无缝钢管的生产能力总计为１６３万ｔ。其中大直径无缝钢管轧机的年产能力为６３...     

摩托车用40Cr钢管的研制

摩托车用４０Ｃｒ钢管的研制长城特殊钢公司第一钢厂钢管车间赵长华，朱海涛，杨茂林［摘要］本文介绍了４０Ｃｒ无缝钢管的生产工艺，热处理工艺及冷加工变形量对成品钢管力学性能的影响进行了试验研究，制定合理的热处理工艺及成品道次变形量的控制是保证成品钢管力学性...     

φ279.4 mm大口径气瓶管生产工艺开发

对天津钢管公司轧管厂的生产工艺做了简单介绍，分析了开发φ279．4mm大口径钢管的工艺难点，确定了各工序变形量的分配，设计了脱管机、定径机的TLW参数。     

Engineering critical assessment on welding flaws of the X65 UOE girth weld based on CRACKWISE

Focused on the girth weld of a Φ762 × 28. 6 mm( X65) offshore UOE pipe,the fracture toughness properties at different weld joint positions were tested. Meanwhile,the largest size of different cracks under service condition was calculated by using CRACKWISE. The service life of the UOE pipe with postulated crack-like flaws was calculated by considering various fatigue factors,such as vibrations caused by ocean current and fluctuations of inner pressure. The assessment process and results can be used to direct the repair of weld flaws laid in pipes or to assess the reliability of in-serving pipes.     

Development and application of Baosteel X80 large diameter UOE longitudinal submerged arc welded pipes

With the increase in energy demand,the demand for oil and gas transmission pipes,particularly high-grade longitudinal submerged arc welded pipes (LSAWs),have been growing in recent years.The construction of the 2nd West-East natural gas transmission pipeline project shows that the oil and gas pipeline construction has entered a new phase of development with X80 pipes being applied in large scales for the first time in China.This paper briefly introduces the 2nd West-East natural gas transmission pipeline project and its main technical requirements with the focus on the features of API standard 5L X80 grade  1219 mm series of U-ing-O-ing-Expanding (UOE) LSAW pipes,which Baosteel developed with the integrated technology for the 2nd West-East natural gas transmission pipeline project.The analysis shows the extra-low carbon content,the high contents of manganese and niobium,the fine microstructure,the high strength,the toughness and the good weldability of X80 pipes meet the requirements of "the technical specification of LSAW linepipes for the 2nd West-East natural gas transmission pipeline project in China".By the end of June 2010,Baosteel had totally produced 322000 t of  1219 mm X80 UOE steel pipes,which have been successfully used in the 2nd West-East natural gas transmission pipeline project,thus filling the gap of the production of large diameter X80 UOE LSAW pipes in China.     

Numerical simulation of the UOE forming process based on MSC. Marc secondary development technology

U-ing-O-ing-Expanding (UOE),the main process for making longitudinal submerged arc welded pipe(LSAW) with steel plate,is famous for its superior quality and reliability.Based on the famous non-linear finite element analysis (FEA) software MSC.Marc,a finite element model (FEM) has been established to simulate the whole UOE forming process by using the secondary development technology with the Python language.Research has also been conducted systematically on the crimping,U-ing,O-ing and mechanical expanding processes.The practice has shown that the simulation calculation is in close conformity with the actual site production data.The FEM has been successfully applied in the UOE production at Baosteel.     

Automatic girth welding and performance evaluation of the joints of hot-induction-bend and line pipes with different wall thickness

During the process of laying long-distance oil and gas transmission pipelines,the hot-induction-bend method is extensively used when the direction has to be changed.By considering the pipeline's ongoing processing and loading states during service,the pipeline that is generally used exhibits thicker walls than those that are observed in the line pipe.As such,during pipeline construction,hot-induction-bend and line pipes with different wall thickness are girth-welded.The chemical composition of hot-induction-bend and line pipes differs,with the carbon content being particularly higher in the hot-induction-bend pipe;it also depicts a higher carbon equivalent,which makes it possible to modify the girth of the pipe.In this study,using Baosteel's standard X70M UOE hotinduction-bend and line pipes,solid-wire automatic gas-metal-arc girth welding was performed and the performance of the girth-welded joint was evaluated.Furthermore,the weldability of the pipeline girth and the microstructure of the girth-welded joint were analyzed.The results reveal that Baosteel's standard UOE hot-induction-bend and line pipes exhibit good girth weldability,and their technical quality can be guaranteed in case of consumer fieldconstruction applications.     

含V、N无缝钢管表面外折缺陷产生原因的分析

通过对鞍钢生产的部分批号V、N微合金强化无缝钢管及生产该钢管的原料连铸坯和连轧管坯的表面缺陷进行研究，分析了含V、N钢管表面外折缺陷的成因，提出了改善钢管表面质量的方法。采用改进后工艺生产的无缝管，其表面外折废品量大幅度降低。     

超超临界机组四大管道关键材料国产化

从电站四大管道选材情况入手,提出了四大管道对大口径无缝钢管的要求,并总结了电站四大管道选用的钢种规格及数量。探讨了实现四大管道国产化需做的工作。最后介绍了扬州诚德铜管有限公司在P92等新材料开发以及在电站锅炉用管、四大管道及核电用管国产化工作中的业绩。     

钢塑复合管在宝钢给水主管线的应用研究

分析了宝钢各个生产、建设阶段钢塑复合管在埋地给水主管线的应用情况及主要问题;对钢塑复合管的制造工艺、技术、应用场合进行了阐述,并指出了实际应用中应关注的重点、要点;同时,亦对钢塑复合管中钢管的内表面处理及应用的标准做了提炼、归纳。     

可控硅中频感应加热在无缝钢管厂AG机组生产线上的应用

鞍钢无缝钢管厂采用新的工艺，在定径机前设中频感应加热炉，对钢管进行在线加热，在国内钢管厂属首例。此设计属环保型设计，占地面积小，节省燃料。具有稳定可靠、控制精确、保护功能齐全等特点，可对被加热的钢管进行精确的温度控制，确保加热后的钢管温度。     

日本JFE开发的建筑结构件用高强度厚壁钢管

介绍了为应对近几年来对更高强度较厚壁厚钢管的需求,日本JFE制钢公司开发的抗拉强度490～780 MPa、屈服强度385～630 MPa系列钢管产品,阐述了由于这些钢管产品都是采用高性能厚板制造,所以钢管的力学性能,尤其是屈服强度(YS)和屈服比(YR)性能更适用于建筑构架的建造。另外,根据各种设计的不同要求,JFE制钢公司通过控制制造钢管所用厚板的力学性能和制管工艺,既能制造低屈服比(YR)钢管,又能制造高屈服比(YR)钢管两种类型的建筑结构件用钢管。     

我国铸铁管业的现状与发展

铸铁管的主要特点是强度高、韧性好、管壁薄、耐腐蚀 ,广泛应用于城市及工业供排水和燃气的输送等。铸铁管材质以球墨铸铁为主 ,主要采用连续铸造法。从国内外铸铁管生产及应用情况进行分析 ,提出了我国铸管行业的发展趋势。