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公开(公告)号：US20240238869A1
公开(公告)日：2024-07-18
申请号：US18577381
申请日：2021-07-09
发明人： Kanae NISHIO , Hiroyasu NIITSUMA , Riccardo CONTE
摘要： A flow channel has lateral cross-sectional shapes that are circular in a first section, and rectangular in a second section. The flow channel in the first section is continuously connected to the flow channel in the second section. The rectangular shape has a long/short side ratio of 3 or greater and 7 or less. The second section has a cross-sectional area S2, the first section has a cross-sectional area S1, and S2>S1. There are two first openings, which are open, in one-to-one correspondence, in two side faces of the second section. There are two second openings, one of which is open while extending from one side face of the two side faces to a bottom face of the second section, and the other of which is open while extending from another one side face of the two side faces to the bottom face of the second section.
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2.发明申请公开(公告)号：US20230038351A1
公开(公告)日：2023-02-09
申请号：US17784337
申请日：2020-12-11
摘要： A method for casting a melt uses a melt container in which a melt receiving space is formed. The melt container has a spout in the form of a lance on the bottom on the melt container. The method includes the following steps: filling the melt container with melt, wherein the melt is introduced into the melt receiving space of the melt container from a crucible using a spout orifice of the lance; casting at least one cast workpiece with melt; filling the melt container with melt again. When filling the melt container with melt, more melt is received in the melt receiving space than is needed for casting the cast workpiece. Directly before the renewed filling of the melt container, a remainder of melt having an oxide skin formed at the melt surface is present in the melt receiving space of the melt container.
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公开(公告)号：US11440089B2
公开(公告)日：2022-09-13
申请号：US16631669
申请日：2018-08-21
摘要： A refractory lining structure for a metallurgical vessel is characterized by at least one elongated expansion joint formed in and extending through the surface of the working lining in a substantially vertical direction. The elongated expansion joint accommodates thermal expansion of the working lining in a metallurgical vessel such as, for example, a tundish during preheating for a continuous casting operation. The elongated expansion joint decreases crack formation, delamination, and spalling of the working lining from underlying back-up linings and/or safety linings in metallurgical vessels during preheating and use, while still facilitating metal skull removal after the completion of metallurgical operations.
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公开(公告)号：US11235384B2
公开(公告)日：2022-02-01
申请号：US16475174
申请日：2017-12-08
发明人： Shinichi Fukunaga , Kouji Kawarada , Kohei Tani , Masashi Oikawa
摘要： In a sliding nozzle comprising three plates consisting of an upper plate, an intermediate plate capable of a sliding movement, and a lower plate, it is intended to suppress adhesion and deposition of metal oxides and others on wall surfaces of inner bores of the three plates. The intermediate plate has: a first inclined portion whose surface defines a slidingly closing directional leading-side wall surface of an inner bore thereof and extends obliquely downwardly in a diametrically contracting direction; a second inclined portion whose surface defines an upper part of a slidingly closing directional trailing-side wall surface of the inner bore thereof and extends obliquely downwardly in a diametrically contracting direction, and a third inclined portion whose surface defines a lower part of the slidingly closing directional trailing-side wall surface of the inner bore thereof and extends obliquely downwardly in a diametrically expanding direction.
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公开(公告)号：US11052459B2
公开(公告)日：2021-07-06
申请号：US16256208
申请日：2019-01-24
发明人： Ken Morales Higa
摘要： A submerged entry nozzle for a continuous casting process includes a pair of triangular shaped ports that narrow from a top portion to a bottom portion of the ports. These triangular shaped ports may improve fluid flow at the discharge of the ports by increasing the velocity of the liquid steel exiting the nozzle and into the mold.
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公开(公告)号：US10799950B2
公开(公告)日：2020-10-13
申请号：US16070934
申请日：2016-11-09
摘要： A nozzle structure for discharging molten steel with improved sealing performance. The nozzle structure comprises: a molten steel discharge path having an inner bore; and one or more joints through which the molten steel discharge path is divided at one or more positions in a orthogonal direction with respect to an upward-downward direction of discharge of molten steel, and which join the molten steel discharge path. An inner bore sleeve is formed of a refractory material, and provided on an inner bore surface of the nozzle structure to extend in the upward-downward direction across at least one of the joints.
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公开(公告)号：US10661334B2
公开(公告)日：2020-05-26
申请号：US15334803
申请日：2016-10-26
申请人： HITACHI METALS, LTD.
IPC分类号： C22C45/02 , B22D11/00 , B22D11/06 , B22D11/10 , C22C45/04 , C22C1/00 , C22C33/00 , C22C45/00 , B22D11/103 , B22D11/124 , C21D9/52 , C22F1/00
摘要： The invention provides a method of producing an amorphous alloy ribbon, the method including a step of producing an amorphous alloy ribbon by discharging a molten alloy through a rectangular opening of a molten metal nozzle having a molten metal flow channel along which the molten alloy flows, the opening being an end of the molten metal flow channel, onto a surface of a rotating chill roll, in which, among wall surfaces of the molten metal flow channel, a maximum height Rz(t) of a surface t, which is a wall surface parallel to a flow direction of the molten alloy and to a short side direction of the opening, is 10.5 μm or less.
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公开(公告)号：US10369624B2
公开(公告)日：2019-08-06
申请号：US14408873
申请日：2012-12-10
发明人： Anxiang Tang , Lifeng Shentu , Jikang Hu , Dean Cao , Xingyu Wang , Chen Chen , Jianqing Yao , Xinghua Lu , Jinsong Chen , Aiping Feng , Xiaoguang Yu
摘要： A control method and apparatus for continuous casting steel pouring are provided, wherein the amount of the molten steel flow of the ladle is controlled, thereby improving the yield of the molten steel and decreasing the production cost.
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公开(公告)号：US10322445B2
公开(公告)日：2019-06-18
申请号：US15329966
申请日：2015-08-19
申请人： Zen Cassinath
发明人： Zen Cassinath
摘要： A high shear liquid metal treatment device for treating metal includes a barrel, a rotor shaft, rotor fans, and stator plates. The barrel has a longitudinal axis that extends between an upper end and a lower end, and an opening at its upper and lower ends. The rotor shaft is mounted centrally through, and parallel to the longitudinal axis. The rotor fans are mounted along an axial length of the shaft. The stator plates are formed on an inner surface of the barrel and are located between adjacent rotor fans. Each stator plate has at least one passage formed therethrough to allow fluid to pass through the plate; and upper and lower surfaces of each stator plate are formed to be within the minimum distance of an adjacent rotor fan. The minimum distance is between 10 μm and 10 mm. The device allows improved treatment of liquid and semi-liquid metals during processing.
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公开(公告)号：US10293399B2
公开(公告)日：2019-05-21
申请号：US15129680
申请日：2015-04-02
发明人： Julian M. Allwood , Martin McBrien
摘要： Apparatus and methods for casting a metal strip with a cross sectional form which varies along the length of the strip. One embodiment of the apparatus includes opposing cooling systems, a positionable molten metal feed system between the opposing cooling systems, and a form adjustment system. The form adjustment system may include at least one dam to determine, at least in part, the cross sectional form of a molten metal feed to the opposing cooling systems. In this way, it is possible to determine the cross sectional form of the solidified metal strip. The dam is moveable during operation of the apparatus to vary the cross sectional form of the molten metal feed to the opposing cooling systems.
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