Study on the leak rate of fluid in welded pipes in leak-before-break analysis;
介绍了输气管道泄漏率的大孔模型和管道模型的特点及求解方程。
Which foreign markets are potentially strong outlets for Italian and European welded pipes?
外国市场是意大利和欧洲焊管的潜在的强大的网点吗?。
Carbon Steel, Alloy Steel and Stainless Steel of Seamless, Straight or Spiral Welded Pipes.
碳钢、合金钢、不锈钢无缝、直缝或螺旋焊缝钢管。
Production mechanism and distributions of residual stresses in girth-welded pipes are analyzed in this paper.
本文对管道环焊缝残余应力的产生机理与分布规律进行研究。
A design and calculated method which transforms round welded pipes into rectangular welded pipes is introduced.
介绍一种由圆形焊管变矩形焊管的设计及计算方法。
The large dia. straight seam welded pipes are mainly used to transport oil, natural gas, coal pulp and other liquids.
大直径直缝焊管主要用于石油、天然气、水煤浆及各种液体的管道输送。
The paper concerns about the working-performances of a newly-developed oil-water pressure testing machine for welded pipes.
介绍了新研制的油压—水压焊接钢管水压试验机的工作特性。
The article is a general review of the test and research work on fracture in relation to spiral welded pipes at home and abroad.
文章综述了国内外有关螺旋焊缝管的断裂试验和研究工作的概况。
The examples show that this method is simple, efficient and accurate for reliability safety assessment of the welded pipes with cracks.
实际算例表明，该方法用于含缺陷焊接管道可靠性安全评定简单、有效、准确。
The developing process of welded pipes made of high climate resistance low-alloy steel in "Eastern Pearl" space netted structure is discussed.
前言：论述了用于上海市“东方明珠”球体空间网架结构的高耐候性低合金结构钢焊接钢管的开发研制过程。
The eddy current inspection is sensitive and fast, and can be operated continuously, it is thus in particular suitable for on-line continuous inspection of welded pipes.
涡流探伤具有连续、快速、检测灵敏度高的特点，适合于焊接钢管在生产线上的连续检测。
The unfavorable effects of deformation magnitude and geometric dimensions on mechanical properties of welded pipes during welding can be eliminated through recrystallization.
在焊管生产过程中，焊管本身的变形度、几何尺寸等对其机械性能会产生不利的影响，通过结晶的方法，可以消除这种影响。
After welded pipes are treated by reducing tension mills known as "welded pipe seamless process". There are still some differences between welded pipe and seamless pipe in quality index.
焊管经张力减径机处理后有人称之为“焊管无缝化”，这种焊管与无缝钢管在一些质量指标上仍存在差异。
This paper discusses a few design methods for current rolls with coarse type and fine type and analyzes the characteristic and problem of rolls in producing various special welded pipes.
讨论了几种通用的粗成型及精成型轧辊的设计。分析了用于生产不同特种形式焊管的优缺点及可能产生的问题。
An introduction is made of the detecting method of the automatic and ultrasonic defect detection system for welded pipes and the major technological parameters of the probes used in China.
介绍了国内焊管自动超声波探伤系统的探伤方法和探头的主要工艺参数，分析了国内焊管制管过程中超声波自动探伤系统耦合部分存在的问题。
Containers, pipes and tanks which used to fill with flammable gas, liquid without cleaning and measuring, should not be welded and scalpeled.
盛装过可燃、易燃气体、液体的各种容器、管道、罐柜等，未经清洗和测爆，没有安全保障时，不准焊、割。
It can be seen through practice that to reduce leakage voltage and facilitate construction, heating pipes may be welded directly to the pipeline or oil tank that needs heating.
通过实验比较看出，为了减少漏电压及施工的方便，把加热管直接焊接在需加热的输液管线或油罐上。
Semicircle steel sheets were welded on the wall of evaporation pipes in fluidized bed roaster for anti-abrasion.
为减少磨损，沸腾炉内蒸发管采用加焊半圆形钢板防磨。
The diameter control is one of the important quality index for spiral welded steel pipes.
螺旋焊接钢管的直径控制是螺旋焊管生产的重要质量指标之一。
He welded two iron pipes together.
他把两根铁管焊接在一起。
A method of joining pipes (3) to produce underwater pipelines (2), wherein the facing free ends (15) of two adjacent pipes (3), aligned along an axis (A), are welded to define a cutback (18);
一种连接管道（3）以制造水下管路（2）的方法，其中两个相邻管道（3） 相互面对、沿着轴（A）对准的自由端（15）被焊接在一起，以限定一段修剪 区域（18）；
The group devotes itself to research, develop and produce the seamless and welded stainless steel pipes which are used in power station boiler, petrochemical and other professional markets.
公司一直致力于电站锅炉、石化等高端行业市场用不锈钢无缝、焊接钢管的研究、开发和生产，技术水平在国内同行业中处于领先地位。
The round plates with arc shaped butt-welded joints were used for stopping sone tube holes which were moved away to another proper positions in the pipes.
采取有弧度的圆形镶块，以对接接头的形式堵补部分管孔，将其移位到管道上的合适位置。
Welded joint performance of Polyethylene Pipes is a comprehensive result under all welding technological p…
加热板温度、焊接压力和加热时间对焊接接头的性能有较大的影响。
Welded joint performance of Polyethylene Pipes is a comprehensive result under all welding technological p…
加热板温度、焊接压力和加热时间对焊接接头的性能有较大的影响。
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