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公开(公告)号：US11969782B2
公开(公告)日：2024-04-30
申请号：US17256001
申请日：2019-06-25
申请人： ROTELEC SA
IPC分类号： B22D11/128 , B22D11/041 , B22D11/12
CPC分类号： B22D11/1287 , B22D11/041 , B22D11/122
摘要： A method for containing a slab during continuous casting, including casting a slab along a casting axis, said slab having a predefined width, wherein the method provides a containment of the slab with a plurality of rolls, said rolls being disposed in pairs facing to each other, and defining a passage along the casting axis for the cast slab, wherein the plurality of rolls includes electromagnetic rolls provided with an electromagnetic stirrer which stirs the liquid contained in the slab.
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公开(公告)号：US20220072603A1
公开(公告)日：2022-03-10
申请号：US17299143
申请日：2019-11-22
IPC分类号： B22D11/055 , B22D11/041 , B22D11/22
摘要： The invention relates to a cooling system for a mould, in particular a mould for vertical continuous casting, comprising at least one cooling unit (11), wherein the mould has a running surface (10) with an inner side and an outer side and the inner side of the running surface (10a) limits a continuous casting during operation, wherein the cooling unit (11) is designed to be moveably arranged on the mould and the cooling unit (11) has an adjusting element (13), wherein the cooling unit (11) is arranged on the mould in such a way that a gap (12) is formed between the cooling unit (11) and the outer side of the running surface (10) and the width of the gap (12) can be adjusted by the adjusting element (13).
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公开(公告)号：US11027331B2
公开(公告)日：2021-06-08
申请号：US16959250
申请日：2019-02-25
发明人： Nobuhiro Okada , Shintaro Oga , Yuichi Tsukaguchi
IPC分类号： B22D11/115 , B22D11/041 , B22D11/055
摘要： A molding facility in continuous casting enabling the quality of the cast slab to be achieved stably even if improving the productivity, the molding facility provided with a mold for continuous casting use, a first water box and second water box storing cooling water for cooling the mold, an electromagnetic stirring device imparting to molten metal in the mold an electromagnetic force causing a swirling flow to be generated in a horizontal plane, and an electromagnetic brake device imparting to a discharge flow of molten metal to an inside of the mold from a submerged nozzle an electromagnetic force in a direction braking the discharge flow, the first water box, the electromagnetic stirring device, the electromagnetic brake device, and the second water box being placed in that order from above to below at an outside surface of a long side mold plate of the mold so as to fit between a top end and bottom end of the long side mold plate, a core height H1 of the electromagnetic stirring device and a core height H2 of the electromagnetic brake device satisfying 0.80≤H1/H2≤2.33.
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公开(公告)号：US11020795B2
公开(公告)日：2021-06-01
申请号：US16605035
申请日：2018-04-17
IPC分类号： B22D11/04 , B22D11/041 , B22D11/08 , B22D11/128 , B22D11/115 , B22D11/12 , B22D11/124
摘要： The invention relates to a method for producing foundry ingots (1) from metal, in particular from steel, having a cross-sectional area of more than 0.1 m2, wherein liquid metal (2) is discharged into an ingot mold (15) open at the bottom either directly form a casting ladle (11) or via a tundish (12), and wherein, by a drawing piston (28), which is vertically movable in the direction of a longitudinal axis (5) of the foundry ingot (1) and on which the foundry ingot (1) is at least indirectly arranged, the at least partially solidified foundry ingot (1) is drawn from the ingot mold (15) in the direction of the longitudinal axis (5).
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公开(公告)号：US10913109B2
公开(公告)日：2021-02-09
申请号：US15760451
申请日：2015-10-23
申请人： POSCO
发明人： Kyung Shik Oh , Young Hoon Kang , Joo Dong Lee , Ki Hwan Joung , Un Kwan Cho
IPC分类号： B22D11/128 , B22D11/041 , B22D11/12 , B22D11/14 , B22D11/053 , B22D11/124
摘要： Provided is vertical semi-continuous casting equipment including a guide device disposed under the mold to support the slab drawn from the plate, the guide device being configured to guide the descending of the slab. The guide device includes first and second guide parts including a plurality of guide rolls respectively disposed on both sides of a moving path of the plate under the mold to support the slab moving by the plate and guide the movement of the slab and a braking unit connected to each of the guide rolls to apply braking force to the guide roll that rotates by the movement of the slab. In accordance with an exemplary embodiment, the slab having the length longer than that of the slab in accordance with the related art may stably descend, the shaking of the slab may be prevented, and the casting speed may be stabilized.
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公开(公告)号：US20200171564A1
公开(公告)日：2020-06-04
申请号：US16492544
申请日：2018-03-09
发明人： Angelo NACLERIO , Giovanni MORI
IPC分类号： B22D11/055 , B22D11/041
摘要： A crystallizer for continuous casting including a tubular body formed of a first and a second tubular element both monolithic each made in one single piece in a metal alloy and mounted coaxial, the first inside the second with radial play, one of the first and second tubular element being provided with one or more grooves opened towards the other tubular element; the first and second tubular element are mechanically coupled together, by plastic deformation by means of drawing between a die and a mandrel appropriately shaped, in such a manner to eliminate the radial play, so that the tubular body is monolithic and the grooves are radially closed, forming conduits in the tubular body configured to serve as cooling conduits and/or housing reinforcement bars.
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7.发明授权公开(公告)号：US10583477B2
公开(公告)日：2020-03-10
申请号：US15519328
申请日：2015-10-14
发明人： Junichi Nakagawa , Yuuji Hiramoto
IPC分类号： B22D11/18 , B22D11/041 , G01F23/22
摘要： A heat flux derivation unit (202) derives a value qy of a y-axis direction component of a heat flux vector. A molten metal surface level derivation unit (203) derives, as a molten metal surface level, a position where the absolute value of the value qy of the y-axis direction component of the heat flux vector whose y-axis component vector is in a direction opposite to a casting direction is maximum.
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公开(公告)号：US20200038945A1
公开(公告)日：2020-02-06
申请号：US16338564
申请日：2017-10-12
IPC分类号： B22D11/12 , B22D11/041 , B22D11/128
摘要： A soft reduction device (1) of a round-section metal product, having liquid or partially liquid core, for reducing the thickness of said metal product coming from a continuous casting machine, the device comprising at least two soft reduction units (2, 3); in which said at least two soft reduction units (2, 3) are arranged in series; in which each soft reduction unit (2, 3) is provided with a group of only three rolls arranged at 120° from one another; and wherein the group of three rolls (7, 8, 9) of one soft reduction unit is offset by a predetermined angle with respect to the group of three rolls (10, 11, 12) of an adjacent soft reduction unit.
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公开(公告)号：US10512970B2
公开(公告)日：2019-12-24
申请号：US16255904
申请日：2019-01-24
IPC分类号： B22D11/04 , B22D11/041 , B22D11/115 , B22D11/18 , B22D11/11
摘要： A primary object of the present invention is to provide a technique of avoiding occurrence of surface defects caused by an electromagnetic brake while checking internal defects with this electromagnetic brake, so that cleanliness of a cast steel can be improved compared with prior arts, and the present invention provides a method for continuously casting steel, the method comprising supplying molten steel into a funnel mold while applying an electromagnetic brake to an outlet flow discharged from an outlet port of an immersion nozzle, wherein magnetic flux density (B) of the electromagnetic brake is within a range of the following (Formula 1): B min ≤ B ≤ B max , B min = 800 · ( D max D 0 ) 3 · ( H SEN H 0 ) ( v · sin θ ) , and B max = 3000 · ( D max D 0 ) 3 · ( H SEN H 0 ) ( v · sin θ ) 2 . ( Formula 1 )
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公开(公告)号：US10259038B2
公开(公告)日：2019-04-16
申请号：US16009103
申请日：2018-06-14
申请人： RETECH SYSTEMS LLC
发明人： Robert E. Haun , Paul G. Meese
摘要： A system and method for sensing the position of an ingot within a segmented mold of a vacuum metallurgical system. An inductive sensory system measures the variations in current between a power source and load of an induction heating coil. The system and method is particularly suitable for determining the position of an ingot within a melting system mold where the mold has a relatively reduced or small cross-sectional area.
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