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公开(公告)号：US20240316697A1
公开(公告)日：2024-09-26
申请号：US18275070
申请日：2021-10-26
CPC分类号： B23K26/38 , B21B1/22 , B21B15/0007 , B21B2001/221
摘要： A laser cutting method for a steel strip, includes cutting an end in a width direction of the steel strip including a joint obtained by joining a rear end of a preceding steel strip and a front end of a following steel strip by using a laser beam, wherein the steel strip is cut such that an interval between pieces of dross having an aspect ratio of 1.0 or more is set to 1.0 mm or more and an interval between dross having an aspect ratio of 1.0 or more and dross having an aspect ratio of less than 1.0 is set to 1.0 mm or more in the end in the width direction after cutting.
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公开(公告)号：US20240278300A1
公开(公告)日：2024-08-22
申请号：US18581767
申请日：2024-02-20
申请人： FIVES DMS
发明人： Pierre GAROT
摘要： A 20-high rolling mill configured for rolling a metal strip, which includes a housing system comprising two parts capable of moving relative to one another, respectively forming an upper housing part, configured to transmit a clamping force to the four backup roller assemblies, of the upper group, and an upper housing part, configured to transmit a clamping force to the four backup roller assemblies of the lower group, and a door cooperating, in a closed position, with a peripheral frame of a fixed frame structure of the housing system surrounding the maintenance window, said door closing, in a sealed manner, said maintenance window. A system of axial stops for the second intermediate rolls accompanies the movements of the upper and lower housing parts.
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公开(公告)号：US11933762B2
公开(公告)日：2024-03-19
申请号：US17605490
申请日：2020-04-17
发明人： Takafumi Ozeki , Yutaka Matsui , Kenji Adachi , Junji Shimamura
摘要： A metal structure evaluator for rolled steel sheets includes: a magnetic property measuring unit configured to measure a magnetic property of an evaluation target point in at least two or more different magnetization directions by performing, in the at least two or more different magnetization directions, processing of: applying a magnetic field on a surface of a rolled steel sheet in one direction; and measuring a magnetic property of the evaluation target point on the surface of the rolled steel sheet; and a determination unit configured to determine a metal structure of the evaluation target point based on the magnetic property measured by the magnetic property measuring unit.
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公开(公告)号：US20240009723A1
公开(公告)日：2024-01-11
申请号：US18038626
申请日：2020-12-17
发明人： Yoichi MATSUI , Yuta ODAWARA
CPC分类号： B21B38/04 , B21B1/22 , B21B13/02 , B21C51/00 , B21B45/004 , B21B37/44 , B21B2013/025
摘要： A rolling mill facility includes: a support part extending along a plate width direction of a steel plate to be rolled; a thickness measurement part supported by the support part and configured to measure a thickness of the steel plate; and a heating part supported by the support part at positions at both sides across the thickness measurement part in the plate width direction and configured to heat both edge portions of the steel plate.
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公开(公告)号：US20230416937A1
公开(公告)日：2023-12-28
申请号：US18463036
申请日：2023-09-07
申请人： POSCO CO., LTD
发明人： Moon-Jae KWON , Jae-Yeong LEE , Su-Young KIM
摘要： Provided is a method of manufacturing a zinc-nickel alloy electroplated steel sheet. The method includes operations of: temper rolling a base steel sheet; immersing the temper-rolled base steel sheet in a sulfuric acid bath including nickel sulfate hydrate and zinc sulfate hydrate to form a zinc-nickel plating layer on the base steel sheet; and polishing the zinc-nickel plating layer and processing a hairline pattern.
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公开(公告)号：US11833559B2
公开(公告)日：2023-12-05
申请号：US17410794
申请日：2021-08-24
发明人： Jingwei Zhao , Tao Wang , Linan Ma , Jianchao Han , Yuanming Liu , Zhongkai Ren , Qingxue Huang
CPC分类号： B21B13/02 , B21B1/22 , B23K11/11 , B23K11/34 , B21B2013/021
摘要： A transverse vibration rolling system and a preparation method for a double-layer metal composite ultra-thin strip relate to a technical field of rolling, which solve problems including poor rolling and bonding effects, low geometric accuracy, and poor plate shape quality of metal composite ultra-thin strips. The transverse vibration rolling system includes: a first roll, a second roll, a first hydraulic vibrator, a second hydraulic vibrator, a first hydraulic motor, a second hydraulic motor, a check valve, a first hydraulic pump, a first overflow valve, an oil tank, a controller, a second overflow valve, a second hydraulic pump, an electromagnetic reversing valve, a first speed control valve, and a second speed control valve. The transverse vibration of the rolls of the present invention can apply transverse shearing force on the ultra-thin metal strips during the bond rolling.
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公开(公告)号：US20230356278A1
公开(公告)日：2023-11-09
申请号：US18246086
申请日：2021-09-09
申请人： SMS GROUP GMBH
摘要： A device and a method for rolling a metal strip. A distance of the upper/lower backup roll at at least one point thereof from a predetermined upper/lower reference point is measured by an upper/lower sensor and the measured values of the sensors are sent to a control device. A strain of the roll stand is calculated using a mathematical model, taking into account the rolling force generated. By the control device, an absolute value of the roll gap and thus the resulting thickness of the rolling stock is determined by the control device on the basis of the measured positions of the backup rolls and the calculated strain of the roll stand.
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公开(公告)号：US20230241657A1
公开(公告)日：2023-08-03
申请号：US18004573
申请日：2021-07-08
发明人： Heinz FÜRST , Simon GROSSEIBER , Thomas LENGAUER , Achim THUS , Adrej UMBRASKO , Michael ZAHEDI
CPC分类号： B21B37/44 , B21B1/22 , B21B2001/225
摘要： A method and an installation for inductively heating flat objects that are transported in a feed direction. The installation has at least one transverse field inductor device which extends transversely to the feed direction over the width of the flat object and has a longitudinal axis running parallel to the transverse axis of the flat object. The transverse field inductor device is positioned such that the longitudinal axis extends in a vertical plane obliquely with respect to the transverse axis of the flat object. With the method it is possible to vary the distance between the flat object and the inductor device and thus the temperature distribution over the transverse profile of the flat object so that the flat object is heated homogeneously.
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公开(公告)号：US20190217355A1
公开(公告)日：2019-07-18
申请号：US16334423
申请日：2017-09-26
申请人： FIVES DMS
发明人： Jérémie FRELIEZ , Jean MESTDAGH
CPC分类号： B21B15/0035 , B08B1/005 , B08B1/04 , B21B1/22 , B21B39/006 , B21B45/0278 , B21B45/0284 , B21B2203/06
摘要： A treatment device for drying a laminated strip includes: lower and upper crosspieces extending transversely to and on either side of the metal strip, the upper crosspiece embedding an upper pressure cylinder with supporting rollers, the lower crosspiece embedding a lower pressure cylinder with the supporting rollers, the actuator and guide enabling the crosspieces to pass from a retracted idle position to a close working position, for which the lower and upper pressure cylinders, arranged on either side of the strip, transversely to the direction of travel, are each intended to be pressure-applied on the strip by the supporting rollers distributed along the length of the pressure cylinder, and along at least two rotating axes parallel to the longitudinal axis of the pressure cylinder. A first compartment supports all the supporting rollers. A second compartment supports the pressure cylinder. Each compartment is a removable element of the crosspiece.
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公开(公告)号：US20180371574A9
公开(公告)日：2018-12-27
申请号：US15574838
申请日：2016-07-05
发明人： Taro KIZU , Shunsuke TOYODA , Akimasa KIDO , Tetsushi TADANI
IPC分类号： C21D9/46 , C21D8/02 , C21D7/13 , C21D6/00 , C21D1/18 , C22C38/06 , C22C38/02 , C22C38/38 , C22C38/28 , C22C38/24 , C22C38/00 , B21B1/22
CPC分类号： C21D9/46 , B21B1/22 , B21B3/00 , B21B2001/225 , C21D1/18 , C21D6/005 , C21D6/008 , C21D7/13 , C21D8/0205 , C21D8/0226 , C21D8/0263 , C21D2211/004 , C21D2211/005 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/24 , C22C38/28 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58 , C22C38/60
摘要： This disclosure provides a predetermined composition, where a conversion value C* of total carbon contents in Ti, Nb and V precipitates whose grain sizes are less than 20 nm is 0.010 mass % to 0.100 mass %, Fe content in Fe precipitates is 0.03 mass % to 0.50 mass %, and an average grain size of ferrite grains whose grain sizes are top 5 % large in ferrite grain size distribution of rolling direction cross section is (4000/TS)2 μm or less, the TS indicating tensile strength in unit of MPa.
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