| 摘要 |
PURPOSE:To surely execute stripe plating of roll groove widths and to improve quality by detecting the position of the groves of a rotating roll, energizing the groove moved to the contact position of a steel strip and stopping the plating to the groove moved to the non-contact position. CONSTITUTION:The grooves 2 are formed over the entire periphery of the roll 1 and the electrode 3 is disposed in the bottom of each groove 2. The electrode liquid is supplied to the grooves 2 through outflow ports 5 communicating the bottom of the grooves 2 and a roll cavity part 4. The steel strip 9 is moved to contact such roll 1, then an energizing roll 10 and the electrodes 3 of the grooves 2 are energized to make stripe plating on the steel strip 9 in the transverse direction thereof. The contact position A and non-contact position B of the roll 1 with the steel strip 9 are simultaneously detected by an angle detector 11. The detection signals are conducted to current rectifiers 12a-12h which energize the plates positioned at A and de-energize the plates positioned at B among the plates which are disposed to the roll shaft 13 and are energized by each of the grooves 2. The sure stripe plating is thus formed on the steel strip 9.
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