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The Customized Laminar Flow Roller with Nickel Base Spray Welding is engineered for extreme wear, thermal cycling, and corrosive conditions in hot rolling mills and other heavy industrial processes. Using the oxy-acetylene spray welding and remelting process, a nickel-based self-fluxing alloy such as Ni60 or Ni60A is applied to a steel roller body, followed by flame remelting to create a dense, metallurgically bonded coating.
The remelted coating eliminates porosity and non-metallic inclusions while forming an alloyed interface with the base material, resulting in bond strength of 200–300 MPa and coating hardness of HRC 58–62. The typical coating thickness ranges from 0.5 mm to 2 mm, depending on the application requirements. This significantly extends roller service life in demanding environments such as hot rolling run-out tables, film production lines, and papermaking equipment.
Applications and Industries
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Steel and Metallurgy: Hot rolling run-out table rollers, laminar cooling rollers, looper rollers, pinch rollers, wrapper rollers, guide rollers
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Film and Foil: Laminar flow rollers for film casting and thin material production
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Paper and Printing: Guide rollers and processing rollers in papermaking lines
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General Industry: Rollers requiring combined wear resistance, corrosion resistance, and thermal shock resistance in heavy-duty service environments
