A deformation way from round welded pipe to square one is introduced.
介绍了一种由圆形焊管变方形焊管的变形方式。
The pass design method of high strength welded pipe is also explained with examples.
举例说明了强力焊管孔型设计方法。
The flying sawing machine is one of the key units of the straight welded pipe production line.
飞锯是直缝焊管生产线上的关键设备之一。
The characteristic and its production process flow of high strength welded pipe are introduced.
介绍了强力焊管的特点及其生产工艺流程。
The system-theory is an effective way to find the cause of the defect in welded pipe production.
用系统论分析查找焊管生产中出现的缺陷原因，是一种行之有效的方法。
The residual stress imposes considerable negative influence on quality of the spiral welded pipe.
残余应力对螺旋焊管质量有显著影响。
The company now has six high-frequency straight seam welded pipe units, three hot-dip galvanizing line.
公司现拥有六条高频直缝焊管机组，三条热镀锌生产线。
This article briefly introduced the demand and production situation of large diameter welded pipe in Russia.
简要介绍了俄罗斯目前对大直径焊管的需求及生产现状。
Double layer coiling welded pipe is widely applied and demands high quality. It must carry out 100% inspection.
双层卷焊钢管应用广泛，品质要求高，必须进行100%检测。
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 experimental results and application effects of weld toughness of spirally submerged arc welded pipe are introduced.
本文介绍了埋弧焊钢管焊缝韧性试验研究的结果及工业生产应用效果。
The test results show the band structure distribution has great influence upon the strong toughness of welded pipe seam.
试验结果表明：带状组织的分布对焊缝强韧性影响较大。
If it used this circumference automatic control system, the spiral welded pipe diameter could be controlled automatically.
若采用螺旋焊管周长自动控制系统可以实现自动化控制螺旋焊管的直径。
Enough stress is not laid on the relay protection technique for HF electrical equipment of the welded pipe in our country.
我国焊管高频电力设备在继电保护技术方面重视不够。
Inside welding seam cracking of spiral submerged Arc welded pipe is the unsolved problem for many years in the pipe field.
螺旋埋弧焊钢管内焊缝裂纹是本行业多年未解决的问题。
This system has been installed on electric resistance welded pipe production line which demands to decrease electric noise.
这个系统现已安装在了需要降低电气噪音的电阻焊管生产线上。
The rapid analysis method of welding quality, acid washing test, for the longitudinally high frequency welded pipe is introduced.
介绍了一种快速分析高频直缝焊管焊接质量的方法——酸洗试验。
Abstract: Enough stress is not laid on the relay protection technique for HF electrical equipment of the welded pipe in our country.
文摘：我国焊管高频电力设备在继电保护技术方面重视不够。
This paper introduces two methods of nondestructive testing mechanism for controlling strip shear knife quality in spiral welded pipe.
简述了控制螺旋焊管钢带剪刃质量的两种无损探伤方法的探伤机理。
Measurement items for hydraulic cylinders used in imported welded pipe production line were determined according to related standards.
本文参照有关标准确定了引进焊管生产线液压缸测试台的测试项目；
In the process of using high strength steel to produce spirally welded pipe, the yield strength is reduced due to Bauschinger's effect.
采用高强度级别钢种的卷板制造螺旋焊管的过程中，包申格效应使钢管屈服强度降低的现象日益突出。
To adopt milling machines to prepare strip edges and groove to give good condition for forming and welding of spiral submerged arc-welded pipe.
在螺旋焊管生产中采用铣边机铣削带钢边缘和坡口，为螺旋焊管成形、焊接创造了有利的条件。
The yield strength of JCOE welded pipe was different from the mother steel plate because of the influence of Bauschinger effect and work hardening.
由于包辛格效应和加工硬化的影响，JCOE制管后相对所采用钢板管体屈服强度会发生变化。
In this paper, the residual welding stresses in a low carbon steel girth butt welded pipe are calculated with a nonlinear finite element code ADINA.
本文利用ADINA非线性分析有限元程序，对低碳钢管道环焊缝接头焊接残余应力进行计算。
The service conditions of the international high-pressure natural gas transmission pipeline, pipeline steel and welded pipe at present are introduced.
介绍了现代国际上高压输送天然气管道，管线钢及焊管的使用情况。
Inside weld produced cracks are often faced problem by adopting wide coil with small forming Angle to produce small size spiral submerged welded pipe.
采用宽板小成型角生产小口径螺旋缝埋弧焊钢管时，内焊缝产生裂纹是经常遇到的问题。
During the modern longitudinal seam welded pipe production, the contacting pressure distribution between the roller and pipe is a very important parameter.
在现代的直缝焊管生产中，轧辊与管坯间的接触压力分布是一个非常重要的参数。
This paper introduces application technique and performance test of powder coating in experimental production for large - diameter steel plate - welded pipe.
主要介绍大直径钢板焊接钢管涂敷环氧粉末涂层实验性生产中的施工技术及涂层性能测试。
People more and more pay much attention to removing of surface scratch on welded pipe through the increasing surface quality requirement to welded pipe by end users.
随着用户对焊管表面质量要求的不断提高，消除焊管表面划伤越来越受到人们的重视。
People more and more pay much attention to removing of surface scratch on welded pipe through the increasing surface quality requirement to welded pipe by end users.
随着用户对焊管表面质量要求的不断提高，消除焊管表面划伤越来越受到人们的重视。
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