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。
What are the major challenges that the Italian welded pipe sector is facing?
是什么，意大利焊管行业面临的主要挑战是什么？
Tube is welded pipe or cap in the threads in pipe fittings to cover the wall.
管帽是焊接在管端或装在管端外螺纹上以盖堵管子的管件。
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。
This laser welded pipe realizes thinner alloy line pipe which is commonly designed in flow line usage.
这种激光焊管实现了薄壁合金管在流体输送管道上的应用。
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。
Ltd by breaking through traditional cold-bending forming change on OD 114 mm high frequency welded pipe units.
上海申花钢管有限公司在114高频焊管机组上突破传统冷弯变形方法，设计出强力焊管。
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。
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。
As online within the burr removal method pipe caused Welded pipe reject rate higher, it is difficult to guarantee quality.
由于在线去除焊管内毛刺的方法造成焊管废品率较高，质量难以保证。
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。
Having been practiced for several years, a new butt method for spiral welded pipe, the two spots tack-weld butt was made out.
通过几年来的实践，摸索总结出了一种螺旋焊管对接新方法——两点点固对接法。
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。
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；
It analyses quadratic phase stainless and its metal compound generated from weld seam and HAZ, which affect welded pipe usage property.
分析了双相不锈钢及其焊缝和热影响区中产生的金属间化合物等二次相对焊管使用性能的影响。
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。
The high frequency welded pipe production is the fastest and the most efficiency way to produce pipe, but it also produces varies kinds of weld defects.
高频焊接制管是最快和最有效的制管方法，但高频焊接制管会产生各种各样的焊接缺陷。
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。
To introduce the seamless process of welded pipe, the basis of theory, the key technology and equipments, the characteristic of products and its applicable prospect.
介绍了焊管无缝化的生产工艺技术，无缝化的理论依据，关键技术和装备，产品的特点和应用前景。
Only adopt non contacting radiation temperature measurement method is determined due to the characteristic and certain instability factors of welded pipe manufacture.
而焊管生产的特点和某些不稳定因素，只能采用非接触的辐射测温方法。
Only adopt non contacting radiation temperature measurement method is determined due to the characteristic and certain instability factors of welded pipe manufacture.
而焊管生产的特点和某些不稳定因素，只能采用非接触的辐射测温方法。
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