●The role of boron and silicon elements: significantly reduce the melting point of the alloy, expand the temperature range of the solid-liquid line, and form a low-melting eutectic; deoxidation and reduction and slagging functions; hardening and strengthening of the coating; improving the performance of the operation

●The role of copper element: improve the corrosion resistance to non-oxidizing acids

●The role of chromium: solid solution strengthening, passivation; improving corrosion resistance and high temperature oxidation resistance; excess chromium is easy to form hard phases of chromium carbide and chromium boride with carbon and boron to improve alloy hardness and wear resistance Sex

●The role of molybdenum element: large atomic radius, large distortion of the crystal lattice after solid solution, significantly strengthen the alloy matrix, improve the high temperature strength and red hardness of the matrix; it can cut off and reduce the network structure in the coating; improve gas resistance Erosion and erosion ability.