Patent ID: 7021363

Claim:
A mold wall of a continuous casting mold for steel and having plates of copper or a copper alloy and which are either provided with coolant channels or are in a thermally conductive contact with a water tank, the mold wall comprising: a surface that comes in a direct contact with steel; and a protective layer applied to the contact surface and having a thickness of from 10μ to 10,000μ, wherein the protective layer is formed of a binary nickel-cobalt alloy NiCo30 having a hardness of about 400 HV1 and includes dispersing additives with a particle of 1μ to 5μ or nanosize particles with a size of 10–1000 nanometers, wherein the dispersing additives are selected from a group containing: a) carbides of titanium, tantalum, tungsten, zircomium, boron, chromium and silicon, and b) oxides of aluminum, chromium, silicium, beryllium, and zirconium, and wherein the dispersion layer has adjustable mechanical and physical properties such as wear resistance, and/or temperature resistance and/or tribology defined by a microstructure changeable by varying inclusion of nanosize particles of NiCo 30.