PURPOSE: To prevent the variation of the dimensions of a strip in its width direction and the generation of flaws at the ends of the strip, by preventing the vertical movement, etc. of the strip between vertical rolls by slanting them, in rolling a strip in its width direction by a vertical mill.
CONSTITUTION: In edging a strip 2 by a pair of vertical rolls 5a, 5b; the strip 2 becomes sometimes unstable and moves upward and downward between both rolls 5a, 5b, which changes the dimensions of strip in its width direction and generates flaws at both ends of the strip in the same direction. For preventing them; when the strip 2 moves one-sidedly upward between both rolls 5a, 5b, the extent of the movement is detected by a vertical movement detector 8 of the strip 2, and its result S1 is inputted to a slanting angle operator 9 to operate a slanting angle of the vertical roll. The operated result S2 is inputted to a slant controlling device 10, which drives a vertical roll slanting device 7a (7b) basing on slanting signals S3, S4 to slant the vertical roll, tereby preventing the unstable upward and downward movements of the strip between both of the rolls 5a, 5b.
ADAKA MATSUO
KAWAMURA KUNIO
TAZOE NOBUHIRO
NIPPON STEEL CORP
| JPS561396Y2 | 1981-01-13 | |||
| JPS57205882A | 1982-12-17 |
| US2183388A | 1939-12-12 |
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