KINZOKUHYOMENNOKOGOKINKAHO

摘要

PURPOSE:To alloy highly the metal of the prescribed part of the surface of a metallic member without scattering metallic powder by forming the layer of a mixture of the metallic powder contg. elements for high alloying with an acrylic tacky binder on the prescribed part and by locally heating the part under specified conditions. CONSTITUTION:The layer of the mixture of about 90-99wt% metallic powder contg. elements for high alloying such as powder of high carbon ferrochrome with about 10-1wt% acrylic tacky binder such as acrylate polymer is formed on the prescribed part of the surface of the metallic member in which the metal is to be highly alloyed. The member is heated at about <=40 deg.C/min heating rate in a nonoxidizing atmosphere, and after holding the member at 150-380 deg.C for >=5min, the prescribed part is locally heated with a heating means having high energy density such as laser. The metal of the prescribed part can be highly alloyed in a high yield without scattering the metallic powder.