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Next generation multilayer - MULTICLAD: Material for brazed heat exchanger applications

机译:下一代多层-MULTICLAD:钎焊热交换器应用材料

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摘要

A concept for a multi-layer tube materials with superior corrosion performance to be used for folded tubes has been developed at GT (Granges Technology). The MULTICLADTM is the third generation multilayer rolled products concept for tubes where a selected core alloy is combined with a specially tailored interlayer. More than 60 days SWAAT life of 0.18 mm gauge material without sacrificial protection from a fin material demonstrates the excellent corrosion performance of the MULTICLAD material. The tailored interlayer minimizes any negative interaction between the core and molten filler to improve the corrosion resistance of the material. The high potential difference between the surface and the centre of the core prolongs the time to perforation by lateral corrosion attack at the near surface regions.
机译:GT(Granges Technology)已开发出一种用于折叠管的具有优异耐腐蚀性能的多层管材料的概念。 MULTICLADTM是用于管材的第三代多层轧制产品概念,其中选定的芯合金与专门定制的中间层相结合。 0.18 mm规格材料的SWAAT寿命超过60天,没有翅片材料的牺牲保护,证明了MULTICLAD材料的出色腐蚀性能。量身定制的中间层可最大程度地减少型芯与熔融填料之间的任何负面相互作用,从而提高材料的耐腐蚀性。表面和芯中心之间的高电势差延长了在近表面区域受到侧向腐蚀侵害的穿孔时间。

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