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1. 发明专利

DE69912105T2 未知
公开(公告)号：DE69912105T2
公开(公告)日：2004-07-08
申请号：DE69912105
申请日：1999-03-03
申请人： ABB AB VAESTERAAS
发明人： LEHMAN ANDERS , SVENSSON ERIK , KROON TORD , ERIKSSON JAN-ERIK
IPC分类号： B22D11/11 , B22D11/04 , B22D11/041 , B22D11/07 , B22D11/115 , B22D11/01
摘要： A device for continuous or semi-continuous casting of metal comprising a cooled mold (22) and an induction coil (10) arranged at the top end of the mold. The mold comprises in its top end a plurality of hollow, old segments (22a, 22b, 22c, 22d, 22e, 22f, 22'b, 22'c, 22'd) separated from each other by partitions (26a, 26b, 26c, 26d, 26e), which all comprise an electrically insulating barrier. Both the mold segments and the partitions are oriented essentially in the casting direction. Each hollow top end mold segment comprises a core of a mechanically supporting bar or beam (25a, 25b, 25c, 25d, 25e, 25f, 25'a, 25'b, 25'c, 25'd, 25'e, 25'f) arranged within the hollow mold segment such that it is surrounded by the hollow mold segment. The core exhibits superior mechanical properties in relation to the mold.

2. 发明专利

DE69912105D1 未知
公开(公告)号：DE69912105D1
公开(公告)日：2003-11-20
申请号：DE69912105
申请日：1999-03-03
申请人： ABB AB VAESTERAAS
发明人： LEHMAN ANDERS , SVENSSON ERIK , KROON TORD , ERIKSSON JAN-ERIK
IPC分类号： B22D11/11 , B22D11/04 , B22D11/041 , B22D11/07 , B22D11/115 , B22D11/01
摘要： A device for continuous or semi-continuous casting of metal comprising a cooled mold (22) and an induction coil (10) arranged at the top end of the mold. The mold comprises in its top end a plurality of hollow, old segments (22a, 22b, 22c, 22d, 22e, 22f, 22'b, 22'c, 22'd) separated from each other by partitions (26a, 26b, 26c, 26d, 26e), which all comprise an electrically insulating barrier. Both the mold segments and the partitions are oriented essentially in the casting direction. Each hollow top end mold segment comprises a core of a mechanically supporting bar or beam (25a, 25b, 25c, 25d, 25e, 25f, 25'a, 25'b, 25'c, 25'd, 25'e, 25'f) arranged within the hollow mold segment such that it is surrounded by the hollow mold segment. The core exhibits superior mechanical properties in relation to the mold.

3. 发明专利

DE69910739T2 未知
公开(公告)号：DE69910739T2
公开(公告)日：2004-07-08
申请号：DE69910739
申请日：1999-02-18
申请人： ABB AB VAESTERAAS
发明人： LEHMAN ANDERS , SVENSSON ERIK , ERIKSSON JAN-ERIK , GREEN DAN K
IPC分类号： B22D11/11 , B22D11/04 , B22D11/051 , B22D11/07 , B22D11/115 , B22D11/10
摘要： A method and a device for continuous or semi-continuous casting of metal, where hot melt is supplied to a cooled continuous casting mold and the melt is cooled and formed to a at least partly solidified strand as it passes through the mold. An inductive coil is arranged at the top end of the mold to, when supplied with an alternating electric high frequency current, generate a high frequency magnetic field to act upon the melt in the mold, whereby heat is developed in the melt and compressive forces acting to separate the melt from the mold wall are generated. The coil is supplied with the high frequency current from a power supply unit with a current control to supply an alternating electric high frequency current having a base frequency of 50 Hz or more to the inductive coil. The current control has modulation means for modulating and controlling the supplied current is controlled in a pulsed, amplitude modulated manner with an amplitude modulated modulation frequency of 10 Hz. or less, whereby essentially full amplitude of the amplitude modulated current is achieved within a rise time corresponding to 1 cycle of the base frequency or less at the start of a pulse.

4. 发明专利

DE69910739D1 未知
公开(公告)号：DE69910739D1
公开(公告)日：2003-10-02
申请号：DE69910739
申请日：1999-02-18
申请人： ABB AB VAESTERAAS
发明人： LEHMAN ANDERS , SVENSSON ERIK , ERIKSSON JAN-ERIK , GREEN DAN K
IPC分类号： B22D11/11 , B22D11/04 , B22D11/051 , B22D11/07 , B22D11/115 , B22D11/10
摘要： A method and a device for continuous or semi-continuous casting of metal, where hot melt is supplied to a cooled continuous casting mold and the melt is cooled and formed to a at least partly solidified strand as it passes through the mold. An inductive coil is arranged at the top end of the mold to, when supplied with an alternating electric high frequency current, generate a high frequency magnetic field to act upon the melt in the mold, whereby heat is developed in the melt and compressive forces acting to separate the melt from the mold wall are generated. The coil is supplied with the high frequency current from a power supply unit with a current control to supply an alternating electric high frequency current having a base frequency of 50 Hz or more to the inductive coil. The current control has modulation means for modulating and controlling the supplied current is controlled in a pulsed, amplitude modulated manner with an amplitude modulated modulation frequency of 10 Hz. or less, whereby essentially full amplitude of the amplitude modulated current is achieved within a rise time corresponding to 1 cycle of the base frequency or less at the start of a pulse.

5. 发明专利

DE69517599T2 未知
公开(公告)号：DE69517599T2
公开(公告)日：2001-02-15
申请号：DE69517599
申请日：1995-12-14
申请人： ABB AB VAESTERAAS
发明人： ANDERSSON LEO , ERIKSSON JAN-ERIK , HELLDEN BJOERN , LARSSON PER , LEHMAN ANDERS
IPC分类号： B22D11/115 , B22D11/10

6. 发明专利

DE69909062T2 未知
公开(公告)号：DE69909062T2
公开(公告)日：2004-05-13
申请号：DE69909062
申请日：1999-02-18
申请人： ABB AB VAESTERAAS
发明人： LEHMAN ANDERS , SVENSSON ERIK , KROON TORD
IPC分类号： B22D11/11 , B22D11/04 , B22D11/041 , B22D11/059 , B22D11/07 , B22D11/115 , B22D11/10
摘要： A device for continuous or semi-continuous casting of metal has a cooled continuous casting mold assembly and an inductive coil arranged at the top end of the mold assembly. The mold assembly is divided into at least two mold assembly parts separated and electrically insulated from each other by partitions, which are oriented in the casting direction and where each partition is formed with an electrically insulating barrier. Each mold assembly part has a mold part associated with a corresponding mechanically supporting mold back-up structure part, and an electrical conductor, with an electrical conductivity higher than the electrical conductivity of the back-up structure. The conductor is arranged with the mold back-up structure part on the side of the mold back-up structure part facing away from the mold, the outside face.

7. 发明专利

DE69909062D1 未知
公开(公告)号：DE69909062D1
公开(公告)日：2003-07-31
申请号：DE69909062
申请日：1999-02-18
申请人： ABB AB VAESTERAAS
发明人： LEHMAN ANDERS , SVENSSON ERIK , KROON TORD
IPC分类号： B22D11/11 , B22D11/04 , B22D11/041 , B22D11/059 , B22D11/07 , B22D11/115 , B22D11/10
摘要： A device for continuous or semi-continuous casting of metal has a cooled continuous casting mold assembly and an inductive coil arranged at the top end of the mold assembly. The mold assembly is divided into at least two mold assembly parts separated and electrically insulated from each other by partitions, which are oriented in the casting direction and where each partition is formed with an electrically insulating barrier. Each mold assembly part has a mold part associated with a corresponding mechanically supporting mold back-up structure part, and an electrical conductor, with an electrical conductivity higher than the electrical conductivity of the back-up structure. The conductor is arranged with the mold back-up structure part on the side of the mold back-up structure part facing away from the mold, the outside face.

8. 发明专利

DE69517599D1 未知
公开(公告)号：DE69517599D1
公开(公告)日：2000-07-27
申请号：DE69517599
申请日：1995-12-14
申请人： ABB AB VAESTERAAS
发明人： ANDERSSON LEO , ERIKSSON JAN-ERIK , HELLDEN BJOERN , LARSSON PER , LEHMAN ANDERS
IPC分类号： B22D11/115 , B22D11/10

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