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用于提高使用寿命和成本控制的锅炉焊接设计

Design of Boiler Welding for Improvement of Lifetime and Cost Control.

作者信息

Thong-On Atcharawadi, Boonruang Chatdanai

机构信息

Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.

出版信息

Materials (Basel). 2016 Nov 3;9(11):891. doi: 10.3390/ma9110891.

DOI:10.3390/ma9110891
PMID:28774014
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5457219/
Abstract

Fe-2.25Cr-1Mo a widely used material for headers and steam tubes of boilers. Welding of steam tube to header is required for production of boiler. Heat affected zone of the weld can have poor mechanical properties and poor corrosion behavior leading to weld failure. The cost of material used for steam tube and header of boiler should be controlled. This study propose a new materials design for boiler welding to improve the lifetime and cost control, using tungsten inert gas (TIG) welding of Fe-2.25Cr-1Mo tube to carbon steel pipe with chromium-containing filler. The cost of production could be reduced by the use of low cost material such as carbon steel pipe for boiler header. The effect of chromium content on corrosion behavior of the weld was greater than that of the microstructure. The lifetime of the welded boiler can be increased by improvement of mechanical properties and corrosion behavior of the heat affected zone.

摘要

Fe-2.25Cr-1Mo是一种广泛用于锅炉集箱和蒸汽管道的材料。锅炉生产需要将蒸汽管道焊接到集箱上。焊缝的热影响区可能具有较差的机械性能和腐蚀行为，从而导致焊接失效。用于锅炉蒸汽管道和集箱的材料成本应得到控制。本研究提出了一种用于锅炉焊接的新材料设计，以提高使用寿命并控制成本，采用钨极惰性气体（TIG）焊接将Fe-2.25Cr-1Mo管与含铬填充材料的碳钢管焊接在一起。使用低成本材料（如用于锅炉集箱的碳钢管）可以降低生产成本。铬含量对焊缝腐蚀行为的影响大于微观结构的影响。通过改善热影响区的机械性能和腐蚀行为，可以延长焊接锅炉的使用寿命。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d19d/5457219/1156264cea51/materials-09-00891-g014.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d19d/5457219/9cfd1a4ff06f/materials-09-00891-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d19d/5457219/7621f2dc3dc7/materials-09-00891-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d19d/5457219/b3714ad57d37/materials-09-00891-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d19d/5457219/8554a77a91e1/materials-09-00891-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d19d/5457219/1156264cea51/materials-09-00891-g014.jpg

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