THIN SLAB NOZZLE FOR DISTRIBUTING HIGH MASS FLOW RATES

    公开(公告)号:EP3154726B1

    公开(公告)日:2018-08-15

    申请号:EP15728644.4

    申请日:2015-06-03

    摘要: The present invention concerns a thin slab nozzle for casting thin slabs made of metal at a very high mass-flow, said thin slab nozzle comprising: a central bore (50) defined by a bore wall and opening at inlet orifice (50μ) and extending therefrom along the longitudinal axis XI until it is closed at an upstream end (10μ) of a divider (10), said central bore comprising: an upstream bore portion (50a) comprising the inlet orifice and extending over a height, Ha, and, adjacent thereto, forming an upstream boundary (5a) with a converging bore portion (50e) of height He located in the connecting portion of the thin slab nozzle, and adjacent thereto a thin bore portion (50f) of height Hf located in the diffusing portion of the thin slab nozzle and ending at the level of the upstream end (10μ) of the divider (10), first and second front ports (51) separated from one another by said divider (10) and coupled to the central bore portion (50a) at least partially at the converging bore portion (50e); characterized in that, in a section of the thin slab nozzle along the first symmetry plane Π1 defined by (X1, X2) wherein X2 is normal to X1, the geometry of the wall of the central bore (50) is characterized as follows: - the radius of curvature at any point of the bore wall of the converging bore portion (50e) is finite, and the ratio of the height, Hf, of the thin bore portion (50f) to the height, He, of the converging bore portion (50e) is not more than 1, Hf/He ≤1.

    THIN SLAB NOZZLE FOR DISTRIBUTING HIGH MASS FLOW RATES
    6.
    发明公开
    THIN SLAB NOZZLE FOR DISTRIBUTING HIGH MASS FLOW RATES 审中-公开
    DÜNNBRAMMENDÜSEZUM VERTEILEN HOHER MASSENDURCHFLUSSRATEN

    公开(公告)号:EP3154726A1

    公开(公告)日:2017-04-19

    申请号:EP15728644.4

    申请日:2015-06-03

    IPC分类号: B22D11/10 B22D41/50

    摘要: The present invention concerns a thin slab nozzle for casting thin slabs made of metal at a very high mass-flow, said thin slab nozzle comprising: a central bore (50) defined by a bore wall and opening at inlet orifice (50μ) and extending therefrom along the longitudinal axis XI until it is closed at an upstream end (10μ) of a divider (10), said central bore comprising: an upstream bore portion (50a) comprising the inlet orifice and extending over a height, Ha, and, adjacent thereto, forming an upstream boundary (5a) with a converging bore portion (50e) of height He located in the connecting portion of the thin slab nozzle, and adjacent thereto a thin bore portion (50f) of height Hf located in the diffusing portion of the thin slab nozzle and ending at the level of the upstream end (10μ) of the divider (10), first and second front ports (51) separated from one another by said divider (10) and coupled to the central bore portion (50a) at least partially at the converging bore portion (50e); characterized in that, in a section of the thin slab nozzle along the first symmetry plane Π1 defined by (X1, X2) wherein X2 is normal to X1, the geometry of the wall of the central bore (50) is characterized as follows: - the radius of curvature at any point of the bore wall of the converging bore portion (50e) is finite, and the ratio of the height, Hf, of the thin bore portion (50f) to the height, He, of the converging bore portion (50e) is not more than 1, Hf/He ≤1.

    摘要翻译: 本发明涉及一种薄板坯喷嘴,用于铸造以非常高质量流动的金属制成的薄板坯,所述薄板坯喷嘴包括:由孔壁限定并在入口孔口(50μ)处开口的中心孔(50) 从而沿着纵向轴线XI直到其在分隔器(10)的上游端(10μ)处关闭,所述中心孔包括:上游孔部分(50a),包括入口孔并在高度上延伸, 形成具有高度He的会聚孔部分(50e)的上游边界(5a),所述会聚孔部分位于薄板坯喷嘴的连接部分中,并且与其相邻,位于扩散部分中的高度为Hf的薄孔部分(50f) 并且在分隔器(10)的上游端(10μ)的水平处结束,第一和第二前端口(51)通过所述分隔器(10)彼此分开并联接到中心孔部分(10) 50a)至少部分地在会聚孔部分 (50E); 其特征在于,在薄板喷嘴沿着由X1定义的第一对称面Π1的一部分中,其中X2与X1正交,中心孔(50)的壁的几何形状的特征如下: 会聚孔部分(50e)的孔壁的任何点的曲率半径是有限的,并且细孔部分(50f)的高度Hf与收敛孔部分(50f)的高度He之比 (50e)不大于1,Hf / He≤1。

    INTEGRATED PLANT WITH VERY LOW ENVIRONMENTAL IMPACT FOR PRODUCING HOT-ROLLED AND COLD-ROLLED STEEL STRIP
    7.
    发明公开
    INTEGRATED PLANT WITH VERY LOW ENVIRONMENTAL IMPACT FOR PRODUCING HOT-ROLLED AND COLD-ROLLED STEEL STRIP 有权
    以生产非常低的环境影响和热轧冷轧钢带集成系统

    公开(公告)号:EP2998046A1

    公开(公告)日:2016-03-23

    申请号:EP15181694.9

    申请日:2015-08-20

    发明人: ARVEDI, Giovanni

    IPC分类号: B22D11/14 B21B1/46

    CPC分类号: B22D11/141 B21B1/463

    摘要: An integrated plant with very low environmental impact for producing coils of hot-rolled and cold-rolled steel strip comprises a foundry section (SF) for producing liquid steel directly connected to a continuous casting and hot rolling section (CCHR) with final winding of the strip into coils, which section (CCHR) is in turn connected to a cold rolling section (PCR) that is in connection with a finishing section (CF), said plant further comprising a longitudinal slitting section (SL) suitable to receive coils from each of said three working sections (CCHR, PCR, CF), a vehicle shredding section (AS) suitable to produce metal scrap fit for use as raw material in the foundry section (SF), a vehicle shredding residue burning section (ASRB) suitable to generate current to supply the plant, and a foundry slag treating section suitable to recycle the slag and recover heat therefrom.

    摘要翻译: 计划与生产热轧和冷轧钢带的线圈非常低的环境影响集成包括铸造部分(SF),用于与最终卷绕的生产钢水直接连接到连续铸造和热轧轧制部分(CCHR) 条插入线圈,其部分(CCHR)又连接到一个冷轧部(PCR)没有与后处理部分(CF)表示,计划进一步包括纵向分切部(SL),其适于接收来自每个线圈连接 说的三个工作区(CCHR,PCR,CF),车辆撕碎部分(AS),其适于产生废金属适合用作在铸造部(SF)原料,车辆粉碎残余物燃烧部(ASRB)适合于 产生电流供给到植物,且适合铸造炉渣处理部分回收所说的熔渣和从那里回收热量。

    PROCESS FOR MULTI-MODE MANUFACTURING OF METAL STRIPS AND PLATES

    公开(公告)号:EP3632582A1

    公开(公告)日:2020-04-08

    申请号:EP19208335.0

    申请日:2018-04-09

    IPC分类号: B21B1/46

    摘要: A process for the endless or batch production of strips and plates of hot-rolled steel, with thickness from 0,6 mm to 50 mm, comprises the continuous casting (1) with liquid core reduction of a thin slab (S) having a minimum thickness of 80 mm, followed by a heating in an induction heater (2), a finishing rolling (4), a controlled cooling (6) and a final shearing (5; 8), and further includes prior to said heating in an induction heater (2) an initial rolling (10) with a thickness reduction of the slab (S) of only about 10% and in any case not more than 20%, starting from a thickness reduction of about 8 mm.