公开(公告)号：AU2003205708A1

公开(公告)日：2003-09-09

申请号：AU2003205708

申请日：2003-01-30

Applicant: SMS DEMAG AG

Inventor： ZAJBER ADOLF ,  WEYER AXEL ,  LETZEL DIRK ,  GARTNER HORST ,  MILEWSKI WILFRIED

IPC: B22D11/00 ,  B22D11/12 ,  B22D11/124 ,  B22D11/128 ,  B22D11/20 ,  B22D11/22

Abstract: A device for continuous casting and direct deformation of a metal strand, with a strand guide which is curved after the continuous casting mold in the direction of strand travel, a spray device for liquid coolant, a bending-straightening unit, and an automatic control system for a uniform temperature field in the strand cross section. The cast strand is cooled with a liquid coolant only in the longitudinal sections in which the cast strand is liquid in the cross section. The curved strand guide with the spray device for liquid coolant is followed by a dry zone, which operates without liquid coolant and serves as insulation against the elimination of radiant heat and systematically surrounds the cast strand. A reduction line is provided, which includes individual, hydraulically adjustable deforming rolls or several hydraulically adjustable roll segments and precedes, coincides with, or follows the region of the bending-straightening unit.

公开(公告)号：CA2419069A1

公开(公告)日：2003-02-05

申请号：CA2419069

申请日：2001-08-07

Applicant: SMS DEMAG AG

Inventor： ZAJBER ADOLF GUSTAV ,  FISCHER LOTHAR ,  BROTSKI HERBERT ,  LETZEL DIRK ,  FEST THOMAS ,  SCHNEIDER HEINZ DIETRICH ,  MILEWSKI WILFRIED

IPC: B22D11/00 ,  B22D11/124 ,  B22D11/128

Abstract: A method and strand guide for supporting, guiding and cooling casting strand s (1) made of steel, especially preliminary sections (2) for girders, which ar e cooled by injected water (29) and are drawn. The inventive method prevents cracks, especially surface cracks, from appearing in the microstructure by adapting the cooling conditions of the surface of the strand during secondar y cooling. Undercooling of the chill of the strand is prevented by adapting th e cooling and support of the beam blank format to the solidification range in order to avoid an undesirable solidification structure on the upper flange edges or in other cross-sectional areas so that cooling and support are provided exclusively where a crater is formed. The casting strand (1) is cooled by guiding the temperature in a specific manner in upper supporting segments (5, 6, 7) by means of injected water jets whose width at least matches the length of the supporting rollers on longitudinal and transversal sides (13, 14) of the cross section (1a) of the casting strand, and is decreasingly supported in an analogous manner with respect to the length of the casting path and the cooling state in core areas (15) of the cross secti on (1a) of the casting strand on the transversal sides (14) of said casting strand cross section (1a) andcooling occurs exclusively by means of water jets (8) which are oriented towards said core areas (15).

公开(公告)号：DE10051959A1

公开(公告)日：2002-05-02

申请号：DE10051959

申请日：2000-10-20

Applicant: SMS DEMAG AG

Inventor： FEST THOMAS ,  ZAJBER ADOLF ,  LETZEL DIRK ,  MILEWSKI WILFRIED

IPC: B22D11/12 ,  B22D11/124 ,  B22D11/128 ,  B22D11/20 ,  B22D11/22

Abstract: The invention relates to a method and a device for continuous casting and subsequent forming of a steel billet (1), especially a billet (1) in the form of an ingot or a preliminary section, wherein the secondary cooling device (4) and the strand support (11) are adapted to the cooling state of the cross-section of the billet (1a) taking into account the qualities of steel, wherein segregations and porosities are important for further processing and the final use of said steel. The invention improves inner quality and surface quality as a result of the fact that the geometric design of the secondary cooling device (4) is analogously adapted to the solidification profile (5) of the billet (1) along the respective distance (6) travelled by the billet and the fact that the strand support (11) is analogously reduced according to the solidification profile (5) of the billet (1) along the next respective distance (6).

公开(公告)号：ES2254903T3

公开(公告)日：2006-06-16

申请号：ES03702564

申请日：2003-01-30

Applicant: SMS DEMAG AG

Inventor： WEYER AXEL ,  LETZEL DIRK ,  GARTNER HORST ,  MILEWSKI WILFRIED ,  ZAJBER ADOLF

IPC: B22D11/00 ,  B22D11/12 ,  B22D11/124 ,  B22D11/128 ,  B22D11/20 ,  B22D11/22

Abstract: Procedimiento de colada continua y moldeo directo de una barra de metal, especialmente de una barra (1) colada de material de acero, que presenta un formato cuadrado, de bloque, de perfil previo, de palanquilla o redondo, tras el molde (2) de colada continua se guía en una guía (3) de la barra curvada y se enfría de forma secundaria con un medio (4) de enfriamiento fluido y se prepara de forma regulada con un campo (5) de temperatura homogéneo en la sección (1a) transversal de la barra para la operación de moldeo, en el que la barra (1) colada se enfría mediante el medio (4) de enfriamiento fluido solo en las secciones (6) longitudinales, en las que la barra (1) colada es fluida en la sección (1a) transversal, y se homogeneiza la temperatura de la barra (1) colada en una zona (7) de transición antes, en y/o después de una unidad (8) de rectificado, curvado mediante el aislamiento de las superficies (1b) exteriores que irradian calor, sin medio (4) de enfriamiento fluido, caracterizado porque en la zona (7) de transición se efectúa una irradiación de calor zonal de tal manera que los cantos (1f) angulares más fríos se enfrían y se apoyan menos que las otras partes de la sección transversal unidas a la zona (1c) del núcleo todavía caliente hasta que el campo (5) de temperatura se forma con curvas (12) isotérmicas elípticas, situadas en horizontal, y porque la barra (1) colada se moldea en un tramo (9) de reducción suave dinámicamente variable debido a una resistencia a la presión medida por unos rodillos (10) de moldeo individuales o segmentos (11) de rodillo, en función de la fuerza de presión que puede aplicarse localmente.

公开(公告)号：DE50301920D1

公开(公告)日：2006-01-19

申请号：DE50301920

申请日：2003-01-30

Applicant: SMS DEMAG AG

Inventor： WEYER AXEL ,  LETZEL DIRK ,  GAERTNER HORST ,  MILEWSKI WILFRIED ,  ZAJBER ADOLF

IPC: B22D11/00 ,  B22D11/12 ,  B22D11/124 ,  B22D11/128 ,  B22D11/20 ,  B22D11/22

Abstract: A device for continuous casting and direct deformation of a metal strand, with a strand guide which is curved after the continuous casting mold in the direction of strand travel, a spray device for liquid coolant, a bending-straightening unit, and an automatic control system for a uniform temperature field in the strand cross section. The cast strand is cooled with a liquid coolant only in the longitudinal sections in which the cast strand is liquid in the cross section. The curved strand guide with the spray device for liquid coolant is followed by a dry zone, which operates without liquid coolant and serves as insulation against the elimination of radiant heat and systematically surrounds the cast strand. A reduction line is provided, which includes individual, hydraulically adjustable deforming rolls or several hydraulically adjustable roll segments and precedes, coincides with, or follows the region of the bending-straightening unit.

公开(公告)号：DE50105255D1

公开(公告)日：2005-03-10

申请号：DE50105255

申请日：2001-08-07

Applicant: SMS DEMAG AG

Inventor： ZAJBER GUSTAV ,  LETZEL DIRK ,  MILEWSKI WILFRIED ,  FEST THOMAS ,  SCHNEIDER DIETRICH ,  FISCHER LOTHAR ,  BROTSKI HERBERT

IPC: B22D11/00 ,  B22D11/124 ,  B22D11/128

Abstract: A method and strand guide for supporting, guiding and cooling casting strands ( 1 ) made of steel, especially preliminary sections ( 2 ) for girders, which are cooled by injected water ( 29 ) and are drawn, serve to prevent cracks, especially surface cracks, from appearing in the microstructure by adapting the cooling conditions of the surface of the strand in the region of the secondary cooling, and serve to prevent undercooling of the strand shell, wherein in order to avoid an undesirable solidification structure on the upper flange edges or in other cross-sectional areas, the cooling and support of the beam blank format are so adapted to the solidification range that cooling and support are provided exclusively where a crater is formed. To this end, the casting strand ( 1 ) is cooled, by guiding the temperature in a specific manner in upper supporting segments ( 5, 6, 7 ), by means of spray-water jets the width of which at least matches the length of the supporting rollers on longitudinal and transversal sides ( 13, 14 ) of the cross section ( 1 a) of the casting strand, and is decreasingly supported in an analogous manner with respect to the length of the casting path and the cooling state in core areas ( 15 ) of the cross section ( 1 a) of the casting strand on the transversal sides ( 14 ) of said casting strand cross-section ( 1 a) so that cooling occurs exclusively by means of water jets ( 8 ) which are oriented towards said core areas ( 15 ).

公开(公告)号：AU1228902A

公开(公告)日：2002-05-06

申请号：AU1228902

申请日：2001-09-28

Applicant: SMS DEMAG AG

Inventor： ZAJBER ADOLF ,  FEST THOMAS ,  LETZEL DIRK ,  MILEWSKI WILFRIED

IPC: B22D11/12 ,  B22D11/124 ,  B22D11/128 ,  B22D11/20 ,  B22D11/22

Abstract: The secondary cooling and the strand support are matched to the cooling state of a continuously cast strand cross section. The secondary cooling and support are reduced in dependence upon the solidification profile of the cast strand along the distance traveled.

公开(公告)号：DE10133093A1

公开(公告)日：2002-02-21

申请号：DE10133093

申请日：2001-07-11

Applicant: SMS DEMAG AG

Inventor： ZAJBER ADOLF GUSTAV ,  MILEWSKI WILFRIED ,  LETZEL DIRK ,  FEST THOMAS ,  SCHNEIDER HEINZ D ,  BROTZKI HERBERT ,  FISCHER LOTHAR

IPC: B22D11/00 ,  B22D11/124 ,  B22D11/128 ,  B22D11/12

Abstract: A method and strand guide for supporting, guiding and cooling casting strands (1) made of steel, especially preliminary sections (2) for girders, which are cooled by injected water (29) and are drawn. The inventive method prevents cracks, especially surface cracks, from appearing in the microstructure by adapting the cooling conditions of the surface of the strand during secondary cooling. Undercooling of the chill of the strand is prevented by adapting the cooling and support of the beam blank format to the solidification range in order to avoid an undesirable solidification structure on the upper flange edges or in other cross-sectional areas so that cooling and support are provided exclusively where a crater is formed. The casting strand (1) is cooled by guiding the temperature in a specific manner in upper supporting segments (5, 6, 7) by means of injected water jets whose width at least matches the length of the supporting rollers on longitudinal and transversal sides (13, 14) of the cross section (1a) of the casting strand, and is decreasingly supported in an analogous manner with respect to the length of the casting path and the cooling state in core areas (15) of the cross section (1a) of the casting strand on the transversal sides (14) of said casting strand cross section (1a) and cooling occurs exclusively by means of water jets (8) which are oriented towards said core areas (15).