Patent Details

Patent ID: CN201010233324.1

A boiler tube outer surface preparation cladding temperature chlorine corrosion dual cored wire for

Description: A method for the preparation of boiler tube outer surface temperature chlorine corrosion cladding dual cored wire, belonging to the technical field of surface engineering. Dual-cored wires from cored wires I and II consisting of cored wires, using a plasma arc, TIG cladding method, the outer surface of the boiler tube cladding simultaneously with the same wire feed speed of cored wires I and cored wires II, the substrate surface is formed by Ni-Cr-Mo-Fe-Ti-based phase cladding layer, a cladding layer and the substrate to achieve metallurgical bonding; cladding layer, the percentage of the average mass Cr 20-26wt%, Mo of mean mass percentage of 13-17wt%, the average percentage of 40 to 60 mass% Ni.The use of plasma arc, TIG cladding method, the outer surface of boiler tubes simultaneously cladding cored wires A and cored wire B, chlorine can form high-temperature corrosion of the cladding layer thickness greater than 500μm cladding layer and the substrate to achieve metallurgical bonding . The advantage, breaking the existing thermal spray technology that exists between coating and substrate combination of low intensity, the coating thickness is generally less than 500μm, coating the presence of porosity and other limitations.

Patent Details:

DOI: C23C24 / 10 (2006.01) I; B22F1 / 00 (2006.01) I