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1. 发明申请

US20220340994A1 HIGH-STRENGTH THIN-GAUGE CHECKERED STEEL PLATE/STRIP AND MANUFACTURING METHOD THEREFOR 有权
公开(公告)号：US20220340994A1
公开(公告)日：2022-10-27
申请号：US17761706
申请日：2020-09-17
申请人： BAOSHAN IRON & STEEL CO., LTD.
发明人： Jianchun WU , Yuan FANG
IPC分类号： C21D9/52 , C22C38/16 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C21D8/02 , C21D6/00 , C21C5/52 , B22D11/06 , B22D11/055 , B21B1/46 , B21B45/02 , B21B37/74
摘要： A high-strength thin-gauge checkered steel plate/strip and a manufacturing method therefor, wherein residual elements such as Sn and Cu in steel scrap are fully utilized as alloy elements in the smelting of molten steel, and the steel has selectively added micro-alloy elements such as B; during the smelting process, the alkalinity of the slag, the types of inclusion in the steel and the melting point thereof, the content of free oxygen and the content of soluble aluminum (Als) in the molten steel are controlled; and twin-roll thin-strip continuous casting is performed to cast a cast strip (11); after exiting crystallization rollers (8a, 8b), the cast strip (11) directly enters a lower sealed chamber (10) containing a non-oxidizing atmosphere, and enters an online rolling machine (13) in a sealed manner so as to undergo hot rolling, then after rolling, the strip steel is cooled by means of air atomization. The resultant steel roll can be used directly as hot-rolled checkered plate/strip, or as a finished checkered plate/strip after being cut and finished, and is widely applicable to the fields of architecture, mechanical production, automobile, bridges, transportation, ship building, etc.

2. 发明申请

US20220250129A1 ROLLING METHOD, PRODUCTION METHOD FOR METAL SHEET, AND ROLLING DEVICE 有权
公开(公告)号：US20220250129A1
公开(公告)日：2022-08-11
申请号：US17629190
申请日：2020-02-10
申请人： JFE Steel Corporation
发明人： Noriki Fujita , Yukihiro Matsubara , Yu Nagai , Yoshimitsu Harada
IPC分类号： B21B45/02 , B21B1/28 , B21B27/10
摘要： A rolling oil supply system is configured to supply rolling oil to a rolling stand selected from a plurality of rolling stands included in a tandem rolling mill, a first rolling oil supply system configured to circulate and supply rolling oil after removing wear powder generated by rolling, and a second rolling oil supply system configured to supply rolling oil containing the wear powder generated by rolling are provided. Mixed rolling oil in which the rolling oil supplied from the first rolling oil supply system and the rolling oil supplied from the second rolling oil supply system are mixed is supplied to selected fourth and fifth rolling stands.

3. 发明申请

US20220241833A1 ROLLER FRAMEWORK HAVING A FRAMEWORK COOLER FOR COOLING A STEEL BAND 有权
公开(公告)号：US20220241833A1
公开(公告)日：2022-08-04
申请号：US17722436
申请日：2022-04-18
申请人： Primetals Technologies Austria GmbH
发明人： Thomas LENGAUER , Bernd LINZER , Alois SEILINGER , Michael ZAHEDI
IPC分类号： B21B45/02
摘要： A framework cooler (20) for cooling a steel strip (50), installed in a roller framework (11), in place of the work rolls (5) and their associated installation pieces (5a and 5b). The framework cooler (20) is sized to be installed into the roller framework (11) through the operator-side roller stands (1) of the roller framework (11). The cooler (20) includes a lower (21b) and an upper water tank (21a), each having a connection (22) for a coolant, and includes a plurality of cooling nozzles (23), or cooling tubes (23a) arranged in the depth direction (T) of the framework cooler (20) or at least one cooling slot (24) extending in the depth direction (T). The bottom and top sides of the steel strip (50) may be cooled.

4. 发明申请

US20220126343A1 Method for setting different cooling curves of rolling material over the strip width of a cooling stretch in a hot-strip mill or heavy-plate mill 有权
公开(公告)号：US20220126343A1
公开(公告)日：2022-04-28
申请号：US17310730
申请日：2020-02-19
申请人： SMS group GmbH
发明人： August SPROCK , Christoph HASSEL , Carsten Andreas KLEIN
IPC分类号： B21B37/76 , B21B45/02 , B21B1/24 , C21D8/02
摘要： A method for setting different cooling rates of metal strips or metal plates (rolling material) over the strip width of a cooling stretch in a hot-strip mill or heavy-plate mill is presented. According to the method, for the calculation of the cooling rate, the initial enthalpy distribution over the material width of the rolling material before the cooling is determined. Proceeding therefrom, a target enthalpy distribution is determined in the width direction and length direction of the rolling material while taking into account a calculation of the flatness and the mechanical properties by means of a microstructure model. Subsequently, the coolant amount and the coolant curve of the cooling stretch are set.

5. 发明申请

US20220088654A1 COMBINED CASTING AND ROLLING INSTALLATION AND METHOD FOR OPERATING THE COMBINED CASTING AND ROLLING INSTALLATION 有权
公开(公告)号：US20220088654A1
公开(公告)日：2022-03-24
申请号：US17479209
申请日：2021-09-20
申请人： Primetals Technologies Austria GmbH
发明人： Axel Rimnac , Roman Winkler
IPC分类号： B21B1/46 , B21B15/00 , B21B39/04 , B21B45/02
摘要： A combined casting and rolling installation and to a method for operating the combined casting and rolling installation. The combined casting and rolling installation comprises a rough-rolling mill train, a discharging device, a first transporting device, a quenching device, and at least one severing device. The rough-rolling mill train is configured to roll a continuously cast hot billet to form a rough-rolled strip. The discharging device is downstream of the rough-rolling mill train with respect to a conveying direction of the rough-rolled strip. The severing device is between the rough-rolling mill train and the discharging device and cuts up a first sub-portion of the rough-rolled strip into a rough-rolled strip piece. The discharging device discharges the rough-rolled strip piece. The first transporting device connects the severing device to the quenching device and transports the rough-rolled strip piece to the quenching device, which is configured to quench the rough-rolled strip piece.

6. 发明申请

US20210354182A1 APPLICATION DEVICES FOR COOLING SECTIONS, HAVING A SECOND CONNECTION 有权
公开(公告)号：US20210354182A1
公开(公告)日：2021-11-18
申请号：US17274212
申请日：2019-07-30
申请人： Primetals Technologies Germany GmbH
发明人： Klaus WEINZIERL
IPC分类号： B21B37/76 , B21B45/02
摘要： A cooling section (2) is situated in a rolling line or upstream or downstream of the rolling line. A hot metal rolled material (1) is cooled in the cooling section. A control device (13) of the cooling section (2) dynamically determines setpoint actuation states (S1*) for control valves (10) situated in supply lines (8) and actuates the control valves (10) accordingly. Main flows (F1) of a liquid, water-based coolant (7) are supplied to application devices (6) of the cooling section (2) via the supply lines (8) in accordance with the actuation. The supply lines (8) conduct the main flows (F1) to buffer regions (12) of the application devices (6). Proceeding from there, cooling flows (F) of the coolant (7) are applied to the hot rolled material (1). The control device (13) also dynamically determines setpoint actuation states (S2*) for active devices (16) and actuates the active devices (16) accordingly. The active devices (16) conduct additional flows (F2) of a further medium (18) to the buffer regions (12) via further supply lines (17) in accordance with the actuation. The cooling flows (F) depend on both the main flows (F1) and the additional flows (F2). The additional flows (F2) are positive or negative depending on the actuation state (S2*) of the active devices (16). The control device (13) adjusts the additional flows (F2) by correspondingly actuating the active devices (16) such that the cooling flows (F) are as identical as possible to setpoint flows (F*) of the coolant (7) at all times.

7. 发明申请

US20210107047A1 COOLING-WATER INJECTION CONTROL DEVICE AND COOLING-WATER INJECTION CONTROL METHOD FOR ROLLING MILL 有权
公开(公告)号：US20210107047A1
公开(公告)日：2021-04-15
申请号：US16981701
申请日：2019-03-06
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Mitsuhiko SANO
IPC分类号： B21B45/02
摘要： A cooling-water injection control device and a cooling-water injection control method for a rolling mill suppress influence by change in flow rate characteristics of water injection headers. The cooling-water injection control device for a rolling mill includes a water injection amount control unit. When a plurality of water injection headers are controlled to make temperature of a material to be rolled on a delivery side of a rolling mill coincident with a target value, in a case where a flow rate of any one of the plurality of water injection headers is less than a transient flow rate between a minimum flow rate and a maximum flow rate, the water injection amount control unit controls a flow rate of any one of the plurality of water injection headers based on priority.

8. 发明授权

US10926310B2 Endless metal ring manufacturing method and endless metal ring resin removal device 有权
公开(公告)号：US10926310B2
公开(公告)日：2021-02-23
申请号：US16130243
申请日：2018-09-13
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Mitsue Koga , Tomohiko Nishiyama
IPC分类号： B21B45/02 , B08B3/12 , C21D1/72 , C21D1/74 , C23C8/24 , B21H1/06 , B21D53/14 , F16G5/16 , C21D9/40 , C21D1/06 , C21D8/10
摘要： Provided is an endless metal ring manufacturing method for manufacturing an endless metal ring by carrying out a barrel polishing step for polishing the endless metal ring by using a barrel of a resin material, a rolling step for rolling the endless metal ring which was cleaned, and a nitriding step for nitriding the endless metal ring which was rolled, wherein after the barrel polishing step and before the rolling step, provided is a resin removing step for removing resin that has adhered to the endless metal ring.

9. 发明申请

US20200331046A1 COOLING SYSTEM FOR COOLING METAL ROLLING STOCK 审中-公开
公开(公告)号：US20200331046A1
公开(公告)日：2020-10-22
申请号：US16463432
申请日：2017-11-28
申请人： Primetals Technologies Austria GmbH , Primetals Technologies Germany GmbH
发明人： Christian LEHNER , Erich OPITZ , Lukas PICHLER , Florian POESCHL , Alois SEILINGER , Klaus WEINZIERL
IPC分类号： B21B45/02 , C21D1/00 , B21B37/74
摘要： A cooling system (2) for cooling metal rolling stock. A plurality of cooling bars (8) for applying a coolant onto the rolling stock, one dedicated coolant supply line (36) for each cooling bar (8), and a feed system (9) for guiding the coolant to the coolant supply lines (36). Each cooling bar (8) is connected to the feed system (9) via a dedicated coolant supply line (36). A bypass line (48, 52) for discharging a coolant flow from the feed system (9), is connected on the input side to a connection element (51, 53) of the feed system (9).

10. 发明申请

US20200324327A1 FACILITY AND METHOD FOR COLD ROLLING METAL STRIP 审中-公开
公开(公告)号：US20200324327A1
公开(公告)日：2020-10-15
申请号：US16094566
申请日：2017-04-18
申请人： JFE Steel Corporation
发明人： Masaki Hirai , Ichiro Tanokuchi
IPC分类号： B21B45/02 , B21B27/10
摘要： In a facility for cold rolling a metal strip in a circulating oil-feeding system by jetting a low concentration coolant, in a neighborhood of an inlet side of a work roll and jetting a high concentration coolant at an upstream side of the jetting position of the low concentration coolant to conduct rolling, the metal strip is cold rolled with the cold rolling facility provided with a control equipment for varying a jetting amount of the low concentration coolant in accordance with a rolling rate so that a tip of a liquid pool of the low concentration coolant formed on a surface of a steel sheet at an inlet side of the work roll does not reach a jetting position of the high concentration coolant, whereby the rolling can be performed without losing a plate-out property even if the rolling rate is decreased.

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