Cladding thickness: Hydrogenation reactor
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Cladding thickness: Why is the cladding thickness of hydrogenation reactors over 6 mm?
Due to the presence of a transition layer and a surface layer – the transition layer is typically 3 mm thick, while the surface layer (laminated layer) is at least 3 mm thick – the thickness of the surfacing layer is therefore at least 6 mm.
However, for most surfacing applications, only a total thickness of 3 mm is required
This type of cladding is used to avoid welding between different types of steel; for example, when the heat exchange tubes are made of stainless steel while the tube sheet is made of carbon steel, a layer of stainless steel about 3 mm thick can be clad to prevent welding between these different steel types. For hydrogenation reactors, where the temperature and pressure are high and wear is severe, a CrMo cladding layer is commonly used to provide heat and corrosion resistance. So the two are different.
Zhengzhou Wanda Heavy Industry Co., Ltd. uses the hot-wire TIG welding process together with Austrian Fronius equipment to perform cladding on INCONEL 625; 18638730687
The base material of composite plates is not resistant to high-temperature hydrogen corrosion; it relies entirely on the surfacing layer inside.