Alloy-coated boiler component
A boiler parts and covering technology, applied in steam boiler accessories, steam boiler components, steam boilers, etc., can solve the problems of high material and labor costs, complex deformation, difficult use of auxiliary components, etc., to achieve durability and corrosion resistance. Excellent properties, good thermal shock resistance and impact resistance
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[0071] Hereinafter, the boiler part of this invention is demonstrated in detail.
[0072] The boiler part of the present invention is an alloy-coated boiler part in which a metal base material is coated (coated) with an alloy material mainly composed of Ni-Cr and welded at an end.
[0073] In the boiler part of the present invention, the alloy material (self-fluxing alloy) constituting the cladding is different in the end region and the non-end region of the base metal.
[0074]
[0075] Here, the "end region" is a region including the end (welded part) and the vicinity of the end, and is a region where the temperature rises rapidly as the end is welded. The range of the end region varies depending on the shape of the base metal (form of the boiler part), etc.
[0076] For example, for a boiler tube, the area covered between the end and a position 15 to 500 mm away from the end can be regarded as the end area.
[0077] In addition, for the boiler furnace panel formed by al...
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