Electric heating – Metal heating – For bonding with pressure
Patent
1991-12-09
1993-11-09
Evans, Geoffrey S.
Electric heating
Metal heating
For bonding with pressure
72203, 219 93, 219102, B23K 1102, B21B 122
Patent
active
052605418
ABSTRACT:
In a crop shear apparatus disposed in a conveyance passage in which band steel is conveyed from a first rolling mill to a second rolling mill of hot rolling equipment, the crop shear apparatus including: at least one shear blade for shearing the band steel in a widthwise direction conveyed from the first rolling mill to the second rolling mill; and a supporting mechanism for movably supporting the at least one shear blades in the widthwise direction of the band steel, wherein the at least one shear blade is present in a non-linear manner along the widthwise direction of the band steel such that a projection quantity of the band steel in the conveyance direction at a sheared end portion can be adjusted when the band steel is sheared in a state where the blade has been moved in the widthwise direction of the band steel and the shear blade is formed into a non-mirror-symmetrical shape on two side portions of a portion which corresponds to the center in the widthwise direction of the band steel, a projection quantity in at least one of the sheared front and rear end portions of the band steel can be adjusted independently of a width of the band steel.
REFERENCES:
patent: 2036798 (1936-12-01), Firth
patent: 3322012 (1967-05-01), Murray
patent: 4497192 (1985-02-01), Reizig et al.
Article: "Advanced Technology of Hot Strip Mill in Japan" pp. 31, 32 Dec. 1987.
Kajiwara Toshiyuki
Kinose Ryohei
Yoshimura Yasutsugu
Evans Geoffrey S.
Hitachi , Ltd.
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