In production of pipe line steel at Beixi Iron and steel Co. several defects are pre-vented by adopting optimum technology.
围绕本钢生产石油管线用钢，结合生产中出现的问题，摸索出一套适合本钢热轧厂的最佳工艺。
To introduce the process of wire drawing process, chemical Cu-plating process and formulation of top grade submerged-arc welding wire for pipe line steel.
介绍管线钢用高等级埋弧焊丝拉丝工艺、化学镀铜工艺及配方。
The results shows that the corrosion is an ideal austenite crystal boundary corrosion for pipe line steel. The accuracy of adopted determination method is high.
结果表明，此浸蚀剂是管线钢一种理想的奥氏体晶界浸蚀剂，所采用的测定方法的精确度较高。
The longitudinal cracks along bond line and the transverse cracks which cut across the weld metal cross section inside weld metal were formed, while X65 pipe line steel was welding.
X65管线钢在焊接过程中，内侧焊缝金属出现横向和纵向沿熔合线方向的裂纹，横向裂纹贯穿焊缝金属横截面。
It is found that the 'delamination always takes place along the centerline segregation band in pipe-line steel produced by continuous casting and then controlled rolling.
初步研究发现，对由连铸然后经控制轧制生产的管线钢层状撕裂几乎总是沿中心线偏析带发生。
Ji 'nan steel housing indoor line laying should try to use a metal tube. The metal pipe shall be firmly grounded or the refractory tube.
济南彩钢板房室内线路铺设时应尽量选用金属管。金属管应牢靠接地或选用耐火资料管。
The grade X65 pipeline steel used for LSAW submarine line pipe has been developed at Baosteel, which is produced by hot continuum rolling processing.
宝钢开发以热连轧方式生产用于制造直缝埋弧焊管的海底管线用x 65级管线钢板，其产品具有高强度、高韧性和良好的焊接性等综合性能。
Line pipe and line pipe steel plays the important role in safe and economy oil and gas transmitting.
为了实现安全、经济的输送，管线钢钢管起到重要的作用。
Precision measuring hot rolling seamless steel pipe on line is a new technology to enhance quality of steel pipe.
热轧无缝钢管在线精度测量是近年来为了提高无缝钢管质量采取的一项新技术。
The X grace steel sheet is used as main material for SAW straight weld pipes for pipe line purpose.
X级管线钢板材是生产直缝埋弧焊管的主要原材料。
The chemical composition, mechanic property, weldability and corrosion resistance of argon arc welding wire for low carbon steel pipe line are contrasted and analyzed.
对低碳钢管线用的氩弧焊丝的化学成分、机械性能、可焊性能、耐腐蚀性能进行对比分析，为合理选用焊丝提供了依据。
Milling machine application in welded pipe production line will greatly improve the edge condition of strip steel.
铣边机在焊管生产机组上的应用将大大改善钢带的边缘状况。
The company owns complete sets of plastic water pipe production line and stainless steel door production line .
本公司拥有成套塑料水管生产线和不锈钢门生产线。
Analyses the constitution of steel pipe wreath sews welding production line, and adopt the PLC technique to control the production line with automation.
分析钢管环缝焊接生产线的组成，并采用可编程控制器技术对生产线进行自动控制。
This paper describes a design method of PC control system for automation line of steel pipe binding in practice.
本文通过钢管捆扎自动线的工程实践，叙述了PC控制系统的设计方法。
Most of the steel for line pipe is made by open-hearth, electric furnace, and basic-oxygen processes.
大部分建管道用管子的钢材由平炉、电炉和碱性顶吹转炉生产。
The principle of thermal analysis method and the procedure were introduced in detail. At the same time, the deformation temperature of pipe line X80 steel and Q235 steel were determined.
详细介绍了热分析法的原理及其具体的实现方法，同时对X80管线钢与Q235钢进行了试验，测量了其冷却过程的相变点。
It also raises the necessity that China shall build LSAW pipe production line and produce wide and thick plate for pipeline steel in 21 century.
提出了2 1世纪中国建设大口径直缝埋弧焊钢管生产线及管线钢用宽厚板国产化的必要性。
The buried-pipe laying of steel natural gas line concerns entire urban gas supply system and the safety of people's lives and properties.
钢质天然气管道埋地敷设工程关系到整个城市供气系统和人民生命财产的安全。
A new on line measuring system for the linearity of steel pipe with large diameter is invented with the technology of visual inspection.
本文研制了基于视觉检测技术的大直径钢管直线度在线测量系统。
S450 hot rolled strips for line pipe is researched and developed through the technology microalloying, ASP and the processes of controlled rolling and controlled cooling in Jinan Iron and Steel co.
利用微合金化技术及ASP连铸连轧工艺和控轧控冷工艺，济钢自主研发了S450热轧管线钢带产品。
Seamless steel line pipe is a kind of steel pipe without seams, which is mainly used in the places near the mouth of oil well or gas well to transmit oil or gas with high pressure.
无缝管线管主要是用于油井或气井的井口附近输送高压油、气的无焊缝钢管。
The production line is mainly used in producing PP-R, stainless steel compound pipe production line and others, such as PP-stainless steel and other compound pipe materials.
该生产线主要用于生产PP-R不锈钢、铜塑复合管生产线及其它如PP-不锈钢等复合管材。
This company has seamless steel pipe perforation unit production line two, cold draw production line six, hot rolling production line with welded steel pipe production line two.
本公司拥有无缝钢管穿孔机组生产线两条，冷拔生产线六条，热轧生产线一条和焊接钢管生产线两条。
The result of production shows that the control precision is high and the reliability is good in the steel-plastics composite pipe prodution line.
应用结果表明，研究的钢塑复合管生产线控制精确高，可靠性好。
Use: as a single coat anticorrosive FBE coat for exterior steel pipe line for transportation of oil and gas, water and other finished products.
应用领域：主要应用于各种输油、输气、输水等钢质管道的外壁防腐。
The practice has proved the steel pipe produced by on- line water quenching and tempering a rational technology with low cost and strong marketing competition.
实践证明，利用轧后余热对钢管进行在线水淬，工艺合理，加工成本低，产品具有较强的市场竞争力。
Based on Caishikou Station engineering of Beijing Metro Line 4, construction plan demonstration, technology measures and test technology about pile foundation of steel pipe column are introduced.
基于北京地铁四号线菜市口车站工程，介绍了钢管柱桩基的施工方案论证、技术措施和检测试验技术。
Based on Caishikou Station engineering of Beijing Metro Line 4, construction plan demonstration, technology measures and test technology about pile foundation of steel pipe column are introduced.
基于北京地铁四号线菜市口车站工程，介绍了钢管柱桩基的施工方案论证、技术措施和检测试验技术。
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