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公开(公告)号：WO2004050940A3
公开(公告)日：2004-12-29
申请号：PCT/EP0312792
申请日：2003-11-15
Applicant: SMS DEMAG AG , BRISBERGER ROLF , TENCKHOFF BERNHARD , BEHRENS HOLGER , FALKENHAHN BODO , TRAKOWSKI WALTER , ZIELENBACH MICHAEL , JUERGENS ROBERT
Inventor： BRISBERGER ROLF , TENCKHOFF BERNHARD , BEHRENS HOLGER , FALKENHAHN BODO , TRAKOWSKI WALTER , ZIELENBACH MICHAEL , JUERGENS ROBERT
CPC classification number: C23C2/24
Abstract: The invention relates to a method for hot-dip coating a metal strand (1), especially a steel strip, according to which the metal strand (1) is vertically guided through a container (3) accommodating the molten coating metal (2) and through a guide channel (4) disposed upstream thereof. An electromagnetic field is generated in the area of the guide channel (4) by means of at least two inductors (5) disposed at both sides of the metal strand (1) to retain the coating material (2) in the container (3). In order to stabilize the metal strand (1) in a center position in the guide channel (4), an electromagnetic field, superimposing the electromagnetic field of the inductors (5), is generated by means of at least two additional coils (6) disposed at both sides of the metal strand (1). In order to improve efficiency of the control of the metal strand in the guide channel, the center position of the metal strand (1) in the guide channel (4) is stabilized in a closed control loop by carrying out the following steps: a) detecting the position (s, s', s'') of the metal strand (1) in the guide channel (4); b) measuring the induced current (IInd) in the inductors (5); c) measuring the induced current (ICorr) in the additional coils (6); d) influencing the induced current (ICorr) in the additional coils (6) depending on the parameters (s, IInd, ICorr) measured in steps a) to c), in order to maintain the metal strand (1) in a center position in the guide channel (4). The invention further relates to a device for hot-dip coating a metal strand.
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公开(公告)号：BRPI0719040A2
公开(公告)日：2013-11-05
申请号：BRPI0719040
申请日：2007-11-21
Applicant: SMS DEMAG AG
Inventor： KUEMMEL LUTZ , BEHRENS HOLGER , LENGSDORF CHRISTIAN , JUERGENS ROBERT
Abstract: To improve and further develop the heat treatment of the weld and the joining weld regions (6, 7) before and behind the actual welding by means of a laser, which is carried out during welding of steel sheets (2) to minimize the risk of crack formation or alteration of the microstructure in the region of the weld, it is proposed according to the invention that the heating of the region of the weld (6, 7) be carried out by means of a multiply stepped line inductor (4, 5) which can be set in a defined way and has zones of different power densities and is configured with a multiple division of its conductor loop lengths and/or with different plating of the conductor loops and/or with a plurality of spacing steps from the steel strip (2). Here, a steeper temperature rise occurs in the first heating stage than in the subsequent heating stage.
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公开(公告)号：DE50303140D1
公开(公告)日：2006-06-01
申请号：DE50303140
申请日：2003-11-15
Applicant: SMS DEMAG AG
Inventor： BRISBERGER ROLF , TENCKHOFF BERNHARD , BEHRENS HOLGER , FALKENHAHN BODO , TRAKOWSKI WALTER , ZIELENBACH MICHAEL , JUERGENS ROBERT
Abstract: A method for hot dip coating a metal strand includes passing the metal strand vertically through a coating tank that contains molten coating metal and through a guide channel upstream of the coating tank. A electromagnetic field is generated by inductors on both sides of the metal strand and an electromagnetic field superposed on the electromagnetic field of the inductors is generated by supplementary coils on both sides of the metal strand. A center position of the metal strand in the guide channel is stabilized by: (a) measuring the position of the metal strand in the guide channel; (b) measuring the induced current in the inductors; (c) measuring the induced current in the supplementary coils; and (d) influencing the induced current in the supplementary coils as a function of all of the parameters measured in steps (a) to (c).
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公开(公告)号：AT324472T
公开(公告)日：2006-05-15
申请号：AT03772340
申请日：2003-11-15
Applicant: SMS DEMAG AG
Inventor： BRISBERGER ROLF , TENCKHOFF BERNHARD , BEHRENS HOLGER , FALKENHAHN BODO , TRAKOWSKI WALTER , ZIELENBACH MICHAEL , JUERGENS ROBERT
Abstract: A method for hot dip coating a metal strand includes passing the metal strand vertically through a coating tank that contains molten coating metal and through a guide channel upstream of the coating tank. A electromagnetic field is generated by inductors on both sides of the metal strand and an electromagnetic field superposed on the electromagnetic field of the inductors is generated by supplementary coils on both sides of the metal strand. A center position of the metal strand in the guide channel is stabilized by: (a) measuring the position of the metal strand in the guide channel; (b) measuring the induced current in the inductors; (c) measuring the induced current in the supplementary coils; and (d) influencing the induced current in the supplementary coils as a function of all of the parameters measured in steps (a) to (c).
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公开(公告)号：CA2670142A1
公开(公告)日：2008-05-29
申请号：CA2670142
申请日：2007-11-21
Applicant: SMS DEMAG AG
Inventor： KUEMMEL LUTZ , JUERGENS ROBERT , LENGSDORF CHRISTIAN , BEHRENS HOLGER
Abstract: To improve and further develop the heat treatment of the weld and the joi ning weld regions (6, 7) before and behind the actual welding by means of a laser, which is carried out during welding of steel sheets (2) to minimize t he risk of crack formation or alteration of the microstructure in the region of the weld, it is proposed according to the invention that the heating of the region of the weld (6, 7) be carried out by means of a multiply stepped line inductor (4, 5) which can be set in a defined way and has zones of diff erent power densities and is configured with a multiple division of its cond uctor loop lengths and/or with different plating of the conductor loops and/ or with a plurality of spacing steps from the steel strip (2). Here, a steep er temperature rise occurs in the first heating stage than in the subsequent heating stage.
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Patent Agency Ranking
公开(公告)号：PL375556A1
公开(公告)日：2005-11-28
申请号：PL37555603
申请日：2003-11-15
Applicant: SMS DEMAG AG
Inventor： BRISBERGER ROLF , TENCKHOFF BERNHARD , BEHRENS HOLGER , FALKENHAHN BODO , ZIELENBACH MICHAEL , JUERGENS ROBERT , TRAKOWSKI WALTER
Abstract: A method for hot dip coating a metal strand includes passing the metal strand vertically through a coating tank that contains molten coating metal and through a guide channel upstream of the coating tank. A electromagnetic field is generated by inductors on both sides of the metal strand and an electromagnetic field superposed on the electromagnetic field of the inductors is generated by supplementary coils on both sides of the metal strand. A center position of the metal strand in the guide channel is stabilized by: (a) measuring the position of the metal strand in the guide channel; (b) measuring the induced current in the inductors; (c) measuring the induced current in the supplementary coils; and (d) influencing the induced current in the supplementary coils as a function of all of the parameters measured in steps (a) to (c).
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公开(公告)号：BR0316809A
公开(公告)日：2005-10-18
申请号：BR0316809
申请日：2003-11-15
Applicant: SMS DEMAG AG
Inventor： BRISBERGER ROLF , TENCKHOFF BERNHARD , BEHRENS HOLGER , FALKENHAHN BODO , TRAKOWSKI WALTER , ZIELENBACH MICHAEL , JUERGENS ROBERT
Abstract: The invention relates to a device for hot-dip coating a metal strand (1), especially a steel strip, in which the metal strand (1) is vertically guided through a container (3) accommodating the molten coating metal (2) and through a guide channel (4) disposed upstream thereof. The inventive device comprises at least two inductors (5) disposed at both sides of the metal strand (1) in the area of the guide channel (4) that are used to generate an electromagnetic field for retaining the coating metal (2) in the container (3), and at least one sensor (6, 6′) for detecting the position (s) of the metal strand (1) in the area of the guide channel (4). In order to simplify and render more precise the detection of the position of the metal strand in the guide channel, the sensor for detecting the position of the metal strand (1) consists of two coils (6, 6′) that are disposed, when seen from the direction of conveyance (R) of the metal strand (1), within the height (H0) of the inductors (5) between the inductors (5) and the metal strand (1). The invention further relates to a method for hot-dip coating a metal strand.
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公开(公告)号：DE10255994A1
公开(公告)日：2004-06-09
申请号：DE10255994
申请日：2002-11-30
Applicant: SMS DEMAG AG
Inventor： BEHRENS HOLGER , BRISBERGER ROLF , FALKENHAHN BODO , TENCKHOFF BERNHARD , TRAKOWSKI WALTER , ZIELENBACH MICHAEL , JUERGENS ROBERT
IPC: C23C2/24
Abstract: A method for hot dip coating a metal strand includes passing the metal strand vertically through a coating tank that contains molten coating metal and through a guide channel upstream of the coating tank. A electromagnetic field is generated by inductors on both sides of the metal strand and an electromagnetic field superposed on the electromagnetic field of the inductors is generated by supplementary coils on both sides of the metal strand. A center position of the metal strand in the guide channel is stabilized by: (a) measuring the position of the metal strand in the guide channel; (b) measuring the induced current in the inductors; (c) measuring the induced current in the supplementary coils; and (d) influencing the induced current in the supplementary coils as a function of all of the parameters measured in steps (a) to (c).
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公开(公告)号：CA2670142C
公开(公告)日：2012-03-20
申请号：CA2670142
申请日：2007-11-21
Applicant: SMS DEMAG AG
Inventor： KUEMMEL LUTZ , BEHRENS HOLGER , LENGSDORF CHRISTIAN , JUERGENS ROBERT
Abstract: To improve and further develop the heat treatment of the weld and the joining weld regions (6, 7) before and behind the actual welding by means of a laser, which is carried out during welding of steel sheets (2) to minimize the risk of crack formation or alteration of the microstructure in the region of the weld, it is proposed according to the invention that the heating of the region of the weld (6, 7) be carried out by means of a multiply stepped line inductor (4, 5) which can be set in a defined way and has zones of different power densities and is configured with a multiple division of its conductor loop lengths and/or with different plating of the conductor loops and/or with a plurality of spacing steps from the steel strip (2). Here, a steeper temperature rise occurs in the first heating stage than in the subsequent heating stage.
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公开(公告)号：CA2507345C
公开(公告)日：2011-10-25
申请号：CA2507345
申请日：2003-11-15
Applicant: SMS DEMAG AG
Inventor： BRISBERGER ROLF , TENCKHOFF BERNHARD , BEHRENS HOLGER , FALKENHAHN BODO , TRAKOWSKI WALTER , ZIELENBACH MICHAEL , JUERGENS ROBERT
Abstract: The invention relates to a device for hot-dip coating a metal strand (1), especially a steel strip, in which the metal strand (1) is vertically guided through a container (3) accommodating the molten coating metal (2) and through a guide channel (4) disposed upstream thereof. The inventive device comprises at least two inductors (5) disposed at both sides of the metal strand (1) in the area of the guide channel (4) that are used to generate an electromagnetic field for retaining the coating metal (2) in the container (3), and at least one sensor (6, 6') for detecting the position (s) of the metal strand (1) in the area of the guide channel (4). In order to simplify and render more precise the detection of the position of the metal strand in the guide channel, the sensor for detecting the position of the metal strand (1) consists of two coils (6, 6') that are disposed, when seen from the direction of conveyance (R) of the metal strand (1), within the height (H0) of the inductors (5) between the inductors (5) and the metal strand (1). The invention further relates to a method for hot-dip coating a metal strand.
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