双重壁管弯曲，以保护跨管间距。
同时，的烟雾侵蚀导致的水冷壁管的浪费。
Meanwhile, the smoke erosion leads to the wastage of water-wall tubes.
分析了水冷壁管损坏的原因，提出了改进的措施。
This paper analyzes the damage reason of the water wall tube, and puts forward the improvement measures.
本文用双周数表计算了铜合金厚壁管空拔后的壁厚。
The wall thickness of thick wall copper tube drawn without plug is calculated by using Zhou-Zhou formula.
材质的成品管及特殊厚壁管18000吨，形成了产。
Finished pipe materials and special thick-walled tube 18000 tons, forming a middle class.
对厚壁管感应加热设备及热处理工艺进行了重新设计改造。
The induction heating equipment and heat treatment process of thick-wall pipe were reconstructed.
在单独使用或用于厚壁管焊接时，应选用低氢耐热钢焊条。
In a separate use or for the thick-walled tube welding, heat-resistant steel should use low hydrogen electrodes.
另本公司常求购各种规格积压库存管以及特殊规格厚壁管。
Another of the companies often purchase a variety of inventory backlog and the special requirements of the thick wall.
针对45钢冷拔厚壁管存在内表面横裂纹问题，分析了其产生的原因。
The causes of inner transversal crack of cold-draw heavy wall pipe of 45 steel were analyzed.
锅炉水冷壁金属管壁温度的波动与水冷壁管横向裂纹失效有很大的关系。
The wall-temperature fluctuation of water-wall tubes is one of the important causes for transverse-cracking failure of water-wall tubes.
特殊设计可以拥有稳定的直径尺寸和圆整度，可以适合生产厚壁管的需要。
And the design can ensure the stability of diameter and roundness when producing the pipe with thick wall.
锅炉右下集箱产生了很多环状裂纹和三个渗水点，同时顶棚水冷壁管塌陷。
A multitude of ring-shaped cracks and three water leakage points were discovered in the right side lower header of a boiler together with a cave-in of the boiler roof water-cooled wall.
循环流化床锅炉水冷壁管的磨损是影响循环流化床锅炉运行的一个主要因素。
The water erosion is the most serious fact, which affects potentially the CFB boiler performance.
通过与已有文献的比较，得出的结论同时适用于内层管为薄壁管和厚壁管的情况。
The conclusions are applicable to the case where the inner tube is thin-walled or thick-walled in comparison with available literatures.
采用三转角轧制法轧制厚壁管和相反的操作法轧制薄壁管可消除喇叭口与尾三角。
The end trumpet and end triangle can be eliminated if a rolling process with three angles rotating is used for thick wall pipe rolling and other processes for thin wall pipe rolling.
在厚壁管、压力容器及电站锅炉的窄间隙全位置焊接中，钨极运动轨迹是动态的。
The synthesizing control scheme is put forward based on the requilement of narrow-gap all-position welding technology in terms of the moving track of tungsten electrode.
对开裂的电厂水冷壁管进行了化学成分及金相组织分析，并对断口进行了扫描电镜分析。
The microstructure and chemical composition of cracked water-cooling wall pipe used in power plant were analyzed, and its fracture was analyzed by SEM.
并介绍了与单半径孔型和双半径孔型比较，W成型的优点及在厚壁管生产中的应用实例。
Then, they introduced the advantages of W-bend forming and its application in thick-walled tube production.
本文对姚孟电厂两台30万千瓦直流锅炉水冷壁管发生横向裂纹漏泄的问题进行了分析。
The author analyses the water wall leakages on two 300mw once-through boilers in Yaomen power plant. The leakage is due to transverse cracks on water wall tubes.
本文介绍了厚壁管连接自动焊接机床的结构、组成、工作原理及设计中解决的几个主要问题。
The paper introduces the construction, constitute, and working principle of the automatic welding machines which are used in joining thick-walled pipes.
同时既能提供生产大口径、厚壁管所需的圆钢锭，又不需要对轧管穿孔机的辊型进行修改。
Simultaneously, round steel ingots which are used to produce pipes with large diameters and thick walls are provided without modifying roll shapes of rolling pipe piercers.
专业供应各种规格的不锈钢管，不锈钢方管，不锈钢无缝管，不锈钢镜面管，毛细管，厚壁管！
Our company specialize in various specifications of the stainless steel tube, stainless steel square tubes, stainless steel seamless tube, stainless steel mirror tube, capillary, thick wall pipe!
对于强制循环系统，为了避免循环水动力的多值性，设计均要求在每一根水冷壁管设置节流孔板。
For the forced circulation system, to avoid the excessive values of circulation water dynamic, every water cooling tube must be mounted throttle plate in the design.
大型循环流化床锅炉高温再热器中所采用的不锈钢膜式壁管屏的制造工艺要点和难点，以及解决的工艺措施。
The article describes the critical and hard parts and technology measures of stainless steel membrane panel's manufacture, which be used in high temperature Reheater of large capacity CFB boiler.
生产实践证明，该自动线在水冷壁管屏生产中取得良好效果，是稳定、高效、小变形、低成本的管屏专用生产线。
It also verified that the production li ne was a stable, high efficient, minute distortion and low cost special line for Membrane water wall panels.
提出了一种浮动凹模芯模闭式镦粗法，以解决厚壁管在单向加压的普通液压机上进行闭式镦粗后壁厚不均的问题。
Using closed die upsetting process to manufacture thick wall tubes on normal hydraulic press may cause the dis uniformity of the thickness along the length of the tube.
生产实践证明，该自动线在水冷壁管屏生产中取得良好效果，是稳定、高效、小变形、低成本的管屏专用生产线。
The production practice had shown that good results were achieved and the line was suitable for the production of Membrane water wall panels. Itals…
生产实践证明，该自动线在水冷壁管屏生产中取得良好效果，是稳定、高效、小变形、低成本的管屏专用生产线。
The production practice had shown that good results were achieved and the line was suitable for the production of Membrane water wall panels. It also verified that the production li ne…
生产实践证明，该自动线在水冷壁管屏生产中取得良好效果，是稳定、高效、小变形、低成本的管屏专用生产线。
The production practice had shown that good results were achieved and the line was suitable for the production of Membrane water wall panels. It also verified that the production li ne…
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