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    • 2. 发明公开
    • 공작 롤의 롤 프로파일
    • 用于两种形状控制和自由规则滚动的滚动轮廓
    • KR1020070110528A
    • 2007-11-19
    • KR1020077022382
    • 2006-03-24
    • 안강 스틸 컴퍼니 리미티드
    • 후앙하오동첸시안린허안루이자오린사시아오천양쉬첸신쉬옌치앙마푸성구오시아오보동하오란우성톈
    • B21B37/42B21B27/02
    • B21B27/021B21B13/142B21B37/40B21B2027/022B21B2267/18B21B2269/14
    • A roll profile for work rolls is provided for both shape control and free ruled rolling. Each of the work rolls is a roll having one tapered end. Providing starting point of the tapered end of the rolls being origin of coordinates, the curve of respective tapered end is a quartic curve represented by a formula as follows, y(x)=a0+a1x+ a2x2+a3x3+a4x 4, wherein x∈[0,Le], y(x)∈[0,He].Because transition between the tapered portion and the roll body is smooth, asymmetric deformation due to the difference between abrasion of the upper and lower rolls is elimatated, reducing wedged shape of strip, and reducing unstable rolling due to shifting of roll axle caused by asymmetric strip stresses. Futher As the amount of shift of work roll is a axial shift represented by Shift=B/2+Le-Se-Lw/2 so that box shaped abrasion of prior art roll is eliminated, closed type abrasion of prior art roll is changed into open type abrasion, averaging the abrasion of the rolls, eliminating 'cat ear' hole, achieving flat roll type rolling, and fulfilling the requirements of free ruled rolling.
    • 提供工作辊的辊型,用于形状控制和自由轧制。 每个工作辊是具有一个锥形端的辊。 提供辊的锥形端的起点为坐标原点,各个锥形端的曲线是由以下公式表示的四次曲线:y(x)= a0 + a1x + a2x2 + a3x3 + a4x4,其中x∈ [0,Le],y(x)∈[0,He]。由于锥形部分和辊体之间的过渡是平滑的,因为上下辊的磨损之间的差异导致的不对称变形被消除,减小了楔形 的带材,并且由于不对称的带钢应力而导致的辊轴移动而减少不稳定的轧制。 另外由于工作辊的移动量是由Shift = B / 2 + Le-Se-Lw / 2表示的轴向移动,因此消除了现有技术的辊的箱形磨损,现有技术的辊的封闭式磨损被改变为 开式磨损,平均磨辊磨损,消除“猫耳”孔,实现平辊式轧制,满足自由轧制要求。