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公开(公告)号：US4593551A
公开(公告)日：1986-06-10
申请号：US658157
申请日：1984-10-05
CPC分类号： B21B1/06 , B21B2003/001 , B21B2263/16 , B21B2273/12
摘要： A method of reducing the thickness of a slab of metal under conditions that tend to produce alligator defects in the ends of the slab, the method comprising the steps of tapering at least one end of the slab and directing the same into a rolling mill. The tapered end of the slab is reduced in thickness in the mill, the amount of reduction increasing as the tapered end passes through the mill. The slab continues through the mill to reduce the thickness of the same. The end of the slab is again tapered and directed again through a rolling mill, with each of said tapers providing combinations of entry thickness to thickness reduction such that the reduction taken in the area of each taper is in an entry thickness to thickness reduction zone that does not produce alligatoring in the ends of the slab. The remaining untapered portion of the slab is reduced in thickness in the mill in an entry thickness to thickness reduction zone in which alligator formation tends to occur.
摘要翻译： 一种在倾向于在板坯的端部产生鳄鱼皮缺陷的条件下减小金属板块的厚度的方法，该方法包括使板坯的至少一端锥形并将其引导到轧机中的步骤。 板坯的锥形端部在轧机中的厚度减小，随着锥形端部通过轧机，轧制量的减少量增加。 板坯继续穿过轧机以减小其厚度。 板坯的端部再次是锥形的并且再次通过轧机，其中每个所述锥体提供入口厚度与厚度减小的组合，使得在每个锥形区域中的减少是进入厚度到厚度减小区域， 在板坯的末端不产生鳄鱼皮。 板坯的剩余未加工部分在轧机中的厚度减小，其中倾向于发生鳄鱼形成的入口厚度到厚度减小区域。
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公开(公告)号：US4584862A
公开(公告)日：1986-04-29
申请号：US632406
申请日：1984-07-19
CPC分类号： B21B1/06 , B21B2003/001 , B21B2263/16
摘要： A method for reducing the thickness of a slab of metal under conditions which tend to cause alligator defects to occur. The method comprises the steps of directing a relatively thick slab of metal several times through a rolling mill or mills to incrementally reduce the thickness of the slab until the thickness approaches a value that tends to produce a longitudinal and lateral fracture in one or both ends of the slab. The thickness of the slab is further reduced by passing the same several times again through a rolling mill or mills, with each of the passes of the slab taking a decreasing amount of reduction in thickness until a predetermined thickness value is reached. The next step involves passing the slab again through a rolling mill to further reduce the thickness thereof, the amount of reduction in this step and pass being substantially greater than that of the last pass immediately preceding this step.
摘要翻译： 一种在倾向于引起鳄鱼皮缺陷的条件下减小金属板厚度的方法。 该方法包括以下步骤：通过轧机或磨机将相对厚的金属板多次引导以递增地减小板坯的厚度，直到厚度接近趋于在一端或两端产生纵向和横向断裂的值 板块。 再次通过轧制机或轧机再次进行多次轧制，使板坯的厚度进一步降低，板坯的每个通道的厚度减小量减小，直到达到预定的厚度值。 下一步包括再次通过轧机将板坯通过轧机进一步减小其厚度，该步骤和通过量的减少量基本上大大高于该步骤之前的最后一次。
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公开(公告)号：US2985043A
公开(公告)日：1961-05-23
申请号：US80870259
申请日：1959-04-24
发明人： ROBERTS WILLIAM L
CPC分类号： B21B37/74 , B21B1/06 , B21B37/60 , B21B2265/22
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公开(公告)号：US1829339A
公开(公告)日：1931-10-27
申请号：US37890629
申请日：1929-07-17
申请人： REPUBLIC STEEL CORP
CPC分类号： B21B37/28 , B21B1/06 , Y10S72/701
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公开(公告)号：US5285670A
公开(公告)日：1994-02-15
申请号：US961512
申请日：1992-10-15
申请人： John E. Thomas
发明人： John E. Thomas
IPC分类号： B21B1/06 , B21B1/34 , B21B15/00 , B21B39/00 , B23D17/02 , B23D17/06 , B23D33/08 , B21B39/16 , B21C47/02
CPC分类号： B23D17/02 , B21B1/34 , B21B15/0007 , B21B39/006 , B23D17/06 , B23D33/08 , B21B1/06
摘要： A pinch roll and shear combination for use in a mill, such as a reversing hot strip mill. The pinch roll and shear combination includes a stationary frame provided with a rotatably mounted lower roll and stationary lower blade adjacent the lower roll. A rectilinearly movable carriage is mounted on the frame with a piston for moving the carriage. An upper roll is rotatably mounted on the carriage and cooperates with the lower roll to form a pinch roll. An upper blade assembly is mounted on the carriage and cooperates with the lower blade to form a shear.
摘要翻译： 用于轧机的夹送辊和剪切组合，例如可逆式热轧带钢轧机。 夹送辊和剪切组合包括设置有可旋转安装的下辊和邻近下辊的固定下刀片的固定框架。 一个直线运动的托架用一个用于移动托架的活塞安装在框架上。 上辊可旋转地安装在滑架上并与下辊配合以形成夹送辊。 上刀片组件安装在滑架上并与下刀片配合以形成剪切。
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公开(公告)号：US4782683A
公开(公告)日：1988-11-08
申请号：US835478
申请日：1986-03-03
CPC分类号： B21B37/28 , B21B1/06 , B21B1/34 , B21B2015/0057 , B21B2015/0071 , B21B45/004
摘要： The method of controlling strip flatness on a hot strip mill which includes a hot reversing mill as a final reducing stand comprises reducing the thickness of the workpiece by passing it back and forth along a pass line through the hot reversing mill while reducing the roll gap on the mill after each successive pass. The strain developed during rolling is equalized by passing the workpiece through a shape processor having a plurality of upper and lower rolls capable of intermeshing along the pass line and located immediately downstream of the hot reversing mill. The equalizing of the strain through the shape processor occurs during selected intermittent passes and/or through the last pass through the reversing mill.
摘要翻译： 在热轧带钢轧机上控制带材平面度的方法包括作为最终还原台的热反转轧机，包括通过使通过热反转轧机的轧制线通过其来回转动来减少工件的厚度，同时减少轧辊间隙 每次连续通过后的磨机。 轧制过程中产生的应变通过使工件通过形状处理器来平衡，该形状处理器具有能够沿着通过线相互啮合并位于热反转轧机的紧挨下游的多个上辊和下轧辊。 通过形状处理器的应变的均衡发生在选择的间歇通过期间和/或通过最后通过反向磨机。
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公开(公告)号：US3906764A
公开(公告)日：1975-09-23
申请号：US52236474
申请日：1974-11-08
申请人： BETHLEHEM STEEL CORP
发明人： MUELLER GEORGE E
CPC分类号： B21B37/16 , B21B1/06 , B21B38/105 , B21B2271/06
摘要： Rolling mill with computer programmed for absolute lock-on AGC control rolls material having absolute aim gage without using an active thickness gage in the control loop. Computer is programmed to calculate; (a) lock-on length of rolled material, (b) mill stretch using a simplified subroutine, (c) calibration-corrected roll gap, (d) a lock-on thickness error relative to aim gage, (e) a corrected roll gap reference signal as a function of a constant lock-on thickness error and other variable thickness errors caused by changes in mill stretch and roll gap occurring after lock-on, and (f) a rate-sensitive variable gain of the corrected roll gap reference signal to reduce thickness errors to substantially zero as rapidly as possible.
摘要翻译： 带有绝对锁定AGC控制器的计算机的轧机具有绝对目标规格的材料，而不在控制回路中使用有源厚度计。 计算机编程计算; （a）轧制材料的锁定长度，（b）使用简化子程序的轧机拉伸，（c）校准校正辊间隙，（d）相对于目标量规的锁定厚度误差，（e）校正辊 间隙参考信号作为由锁定后发生的轧机拉伸和滚动间隙变化引起的恒定锁定厚度误差和其他可变厚度误差的函数，以及（f）校正滚动间隙基准的速率敏感可变增益 信号以尽可能快地将厚度误差减小至基本为零。
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公开(公告)号：US1622060A
公开(公告)日：1927-03-22
申请号：US829025
申请日：1925-02-10
申请人： STOOP WILLIAM J
发明人： STOOP WILLIAM J
IPC分类号： B21B1/06
CPC分类号： B21B1/06 , B21B2203/42 , Y10T29/30
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公开(公告)号：US5931040A
公开(公告)日：1999-08-03
申请号：US974282
申请日：1997-11-19
申请人： Tomoaki Kimura , Shigezi Kaneko
发明人： Tomoaki Kimura , Shigezi Kaneko
CPC分类号： B21B1/26 , B21B1/024 , B21B1/04 , B21B1/06 , B21B13/02 , B21B2001/028 , B21B2013/021 , B21B2013/025
摘要： The present invention is directed to a rough rolling mill for rolling a slab of material into a rough bar through a hot rolling process. The rolling mill reduces material temperature drop thereby preventing a decrease in productivity. The rolling mill train for producing a rough bar from a slab of material has at least two close mill couples at an outlet side thereof. Each close mill couple is composed of two rolling mills arranged in tandem close to one another to roll the material. The at least two close mill couples are arranged so that the material being rolled is not acted upon by adjacent close mill couples at the same time.
摘要翻译： 本发明涉及一种用于通过热轧工艺将坯料坯料轧制成粗棒的粗轧机。 轧机减少材料温度下降，从而防止生产率的降低。 用于从板材生产粗棒的轧机机组在其出口侧具有至少两个紧密的轧机对。 每个密切的铣刀组由两个彼此串联布置的轧机组成，以轧制材料。 至少两个密封的轧机对被布置成使得被轧制的材料不被相邻的紧密的轧机对同时作用。
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