Metal working – Scale remover or preventor – Scraper or scalper
Patent
1988-01-11
1989-10-10
Hall, Carl E.
Metal working
Scale remover or preventor
Scraper or scalper
29 81G, 29 81H, 72227, 72234, 72 40, 134 63, B21C 4300
Patent
active
048722456
ABSTRACT:
A cold-rolled strip manufacturing apparatus, in which a continuous cold reduction mill and a continuous annealing furnace are directly linked together, has a tension-leveller-type scale breaker for elongating hot-rolled breakdown by 2 to 7 percent, a scale scrubbing brush unit and an immersion-type continuous pickling tank installed upstream of the continuous cold reduction mill.
Descaling of the hot-rolled strip coil is carried out by breaking the mill scale formed on its surface by causing the running strip to elongate and then the broken scale is removed from the surface. The percent elongation given to the strip is feedforward controlled on the basis of the manufacturing conditions of the hot-rolled strip coil and/or the properties and quantity of the mill scale formed. In another descaling method, the percent elongation given to the strip is feedback controlled on the basis of the condition of scale breaking and removing that is detected during the period in which the mill scale is broken and removed.
REFERENCES:
patent: 2196600 (1940-04-01), Wean et al.
patent: 2238667 (1941-04-01), Wales
patent: 2259277 (1941-10-01), Theiss
patent: 2359095 (1944-09-01), Elder et al.
patent: 3039513 (1962-06-01), Lasiewicz et al.
patent: 3209429 (1965-10-01), Amtmann
patent: 3587276 (1971-06-01), Randich
patent: 3918282 (1975-11-01), Elbe
patent: 4179913 (1979-12-01), Martt
patent: 4188812 (1980-02-01), Nomura et al.
Chikazawa Bunichiro
Hioki Yoshihiro
Ichida Kozaburo
Kawasaki Yoshiki
Ohno Yuichi
Cuda Irene
Hall Carl E.
Nippon Steel Corporation
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