PRODUCTION OF CASTING RING IN ROTARY TYPE CONTINUOUS CASTING DEVICE

PURPOSE:To obtain a casting ring having high heat resistance and abrasion resistance and a long life by plating an Ni coating layer on the surface of a circular ring-like pattern made of a low m.p. metallic blank material having a square shape in section while said pattern is rotated then electroforming copper (alloy) on the Ni coating layer thereof and dissolving away said pattern. CONSTITUTION:A circular ring-like pattern 1 consisting of a low m.p. metal (e.g.; Al alloy) is installed in a plating cell 2 after it is subjected to alkali degreasing rinsing pickling rinsing. While the pattern 1 is rotated in the cell 2, electric current is supplied between the pattern 1 as cathode and anodes 3, 3 to allow the Ni coating layer to form on the surface of the pattern 1 in the plating soln. which is admitted 5 into the cell. Copper (alloy) is electroformed on said Ni coating layer in the plating soln. contg. a copper salt and the pattern 1 is dissolved away in, for example, an aq. soln. of NaOH. As a result, the casting wheel having heat- and abrasion resistant Ni (alloy) coating layer on the surface contacting directly with molten steel is produced by electroforming easily with good accuracy.