Analysis of Stress Cracking of Small-sized Spiral Submerged-arc Weld Pipe and Relevant Preventive Actions

1、

The discussion involves such aspects as the cause of strip folding occurring in butt-welding process of spiral weld pipe, negative influence by such failure on pipe quality and preventive actions.

介绍了螺旋焊管生产中对头焊带钢的硬弯现象发生原因，对钢管质量的危害及防止措施。

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2、

According to deformation feature of sheet strip during forming process of the spiral weld pipe and the stress condition of weld pipes wall between lower surface and upper surface.

在研究螺旋焊管成形过程中带钢的变形特征、焊管管壁层间应力的基础上，提出了一种特殊工艺过程&锥形螺旋焊管成形工艺。

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3、

The Triaxial Magnetic Flux Leakage Signal Analysis of Spiral Weld Roof Topping and Hi-Low Defects Three-dimensional Numerical of CLAM Steel on TIG Welding

螺旋焊缝噘嘴错边缺陷三轴漏磁信号分析中国低活化马氏体钢TIG焊焊接的三维数值模拟

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4、

Proper extrusion force is critical to ensure weld strength of the spiral weld tube during hi-frequency butt-welding process.

在高频对接螺旋焊管生产中，适当大小的挤压力是保证焊管焊缝强度的关键因素之一。

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5、

In this paper, a new method for length/ weight measurement of spiral weld pipe is introduced on an error analysis of measurement.

介绍了一种测量螺旋焊管长度和重量的新方法，分析了产生测量误差的原因。

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6、

Influence of angular distortion of spiral weld on stress distribution in vicinity of welded joint of line pipe

焊缝噘嘴对螺旋焊管应力分布的影响

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7、

The surface quality of the spiral weld pipe is as so critical a quality assurance element as its interior quality.

螺旋焊管的表面质量与其内在质量同样是焊管质量的重要保证因素。

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8、

Causes for and Countermeasures Against Residual Magnet of SAW Spiral Weld Tube

螺旋埋弧焊管剩磁的产生及其消除

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9、

Design of A New Type Concave-convex Guide Plate of Spiral Weld Pipe Plant

新型螺旋焊管生产用凹凸式导板的设计

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10、

A computer based new method for length and weight measurement of spiral weld pipe

螺旋焊管微机控制自动测长称重技术的研究与应用

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11、

Application of CCD to Adjustment of Spiral Weld Gap

CCD在螺旋焊缝间隙调整中的应用

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12、

This thesis analyse the linear theory of Gyro-TWT with spiral corrugated waveguide and two-beam coaxial gyrotron.

本文主要运用线性理论分析了内开槽螺纹波导回旋管与双电子注同轴腔回旋管。

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13、

Band-stop Filter Based on Spiral Coplanar Waveguide Defected Ground Structure

表面等离子激元光波导与滤波器设计基于螺旋型共面波导DGS的带阻滤波器

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14、

This paper provides a simple technique to design and optimize the spiral waveguide of Gyro-TWT. The dispersion characteristics of helical waveguide was given out.

为了给回旋行波放大器中螺旋管的设计提供一种简单易行的计算和优化方法，构建了特定的螺旋型回旋管模型，并用色散特性方程和MAFIA软件计算了其色散特性。

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15、

The overexposure technique is valuable for fabrication of devices with stabilized linewidth such as integrated optical gyroscope with spiral waveguide.

过曝光技术对线宽稳定度要求较高的器件，比如具有螺线波导的集成光学陀螺的制作有较重要价值。

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16、

For special packaging requirements, the need to raise the surcharge gum.

如有特殊包装要求, 需加收2%-5%的附加费.

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17、

Noble, the Hong Kong-based commodities trader, upped the ante this week by issuing seven-year bonds with a 65 per cent premium.

总部位于香港的大宗商品交易商来宝集团（Noble）本周加大赌注，发行了转换溢价为65%的7年期债券。

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18、

Study on Risk Premiums of Correlation and Idiosyncratic Volatility Using DCC The association between the survivin C-31G polymorphism and gastric cancer risk in Chinese population

DCC架构下相关性和特质波动性的风险溢价中国人群survivin C-31G多态性和胃癌风险相关性研究

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19、

Fairtrade said Mr Mohan had confused the retail price premium with the "social premium", a sum that producers use to build schools, clinics or dig bore holes.

公平贸易组织表示，莫汉把零售价格溢价与“社会溢价”（social premium）混为一谈，社会溢价是指生产者可用来建造学校、诊所或打井的一笔款项。

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20、

But of these, six followed the great depression and three would have seen a lower payout on the puts than the future value of the premium.

但其中有6个发生在大萧条（great depression）之后，有3个卖出期权的行权价格低于合同溢价的未来价值。

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