COATING, MACHINE PART SUCH AS NOZZLE FOR PROCESSING MACHINERY AND CONTACT TIP FOR WELDING, METHOD OF FORMING COATING, METHOD OF MANUFACTURING MACHINE PART SUCH AS THE NOZZLE FOR THE PROCESSING MACHINERY AND CONTACT TIP FOR WELDING

摘要

To extend a life-span of a nozzle for a processing machine, a hard ceramic coating is formed on a surface of a base metal of the nozzle for a processing m