METHOD OF PRODUCING A ROLL COMPRISING A WELDED-ON SURFACE ; METHOD OF REPAIRING A USED ROLL WITH A WELDED-ON SURFACE

• Main Authors: LEKIC-NINIC, MARINKO, LECHNER, STEFAN, WIMMER, FRANZ, TRNKA, KARL, POEPPL, JOHANN, SHAN, GUOXIN, THOENE, HEINRICH
• Format: Patent
• Language: English; French; German
• Published: 27.02.2013
• Subjects: ALLOYS; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; FERROUS OR NON-FERROUS ALLOYS; MACHINE TOOLS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; PUNCHING METAL; ROLLING OF METAL; SOLDERING OR UNSOLDERING; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WELDING; WORKING BY LASER BEAM

The roll (1) comprises a roll element having a roll jacket (2) made of a basic material such as steel and a wearing coat (6), which is applied to the basic material by a surface welding process using a welding additive and surrounds a surface (3) of the roll jacket. A welded-on surface of the roll is designed as a single-layer weld. The zone of the wearing coat surrounding the surface of the roll jacket in a thickness of 2.5 mm has same chemical composition. Independent claims are included for: (1) a method for producing a roll for supporting and conveying hot material; (2) a method for repairing a roll for supporting and conveying hot material used during the operation; (3) a welding additive for producing a welded-on surface on a roll jacket of a roll; and (4) a welding rod for producing a welded-on surface on a roll jacket of a roll.