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首页> 外文会议>11th Annual North American Waste to Energy Conference Apr 28-30, 2003 Tampa, Florida >Application of Unifuse Overlay Tubes in the Convection Section of Waste-To-Energy Boilers
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Application of Unifuse Overlay Tubes in the Convection Section of Waste-To-Energy Boilers

机译：Unifuse覆盖管在垃圾发电锅炉对流段中的应用

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摘要

The modem weld overlay applied by automatic gas-metal-arc welding (GMAW) process using Ni-Cr-Mo-Nb alloy 625 has been extremely successful in providing corrosion and erosion/corrosion protection for the waterwalls of waste-to-energy (WTE) boilers for over a decade. Without alloy 625 weld overlay protection, the carbon steel waterwall of a waste-to-energy boiler would be corroded through in a matter of months. The overlaid waterwalls for numerous WTE boilers have shown excellent performance results with services up to 10 years or more. Welding Services Inc. has developed a patented process for manufacturing weld overlay bimetallic tubes involving GMAW/GTAW process. Unifuse~R 625 overlay tubing with carbon steel substrate has been successfully used as screen tubes, superheater tubes and generating banks in the convection section. The overlay tubes have successfully replaced such corrosion protection methods as stainless steel tube shields and refractories.
机译：通过使用Ni-Cr-Mo-Nb合金625的自动气-金属电弧焊（GMAW）工艺应用的现代堆焊技术在为垃圾发电的水冷壁（WTE）提供腐蚀和侵蚀/腐蚀保护方面非常成功）锅炉十多年了。如果没有625合金堆焊保护，废物能源锅炉的碳钢水冷壁将在几个月内被腐蚀。许多WTE锅炉的覆盖水冷壁都具有出色的性能，使用寿命长达10年以上。 Welding Services Inc.开发了一种专利工艺，用于制造涉及GMAW / GTAW工艺的堆焊双金属管。 Unifuse〜R 625碳钢基底覆盖管已成功用作对流段的筛管，过热器管和发电站。覆盖管已成功替代了诸如不锈钢管屏蔽层和耐火材料等腐蚀防护方法。

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