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公开(公告)号：US09429021B2
公开(公告)日：2016-08-30
申请号：US14230147
申请日：2014-03-31
Applicant: ALSTOM Technology Ltd
Inventor： Sorin Keller , Werner Martin Balbach , Claus Paul Gerdes
IPC: B23K9/00 , B23K9/02 , B23K31/00 , B23K33/00 , F01D5/06 , B23K9/028 , B23K9/167 , B23K9/173 , B23K15/00 , B23K26/28 , B23K9/16 , B23K10/02 , B23K20/12 , B23K26/20 , F01D5/02
CPC classification number: F01D5/063 , B23K9/00 , B23K9/0213 , B23K9/028 , B23K9/16 , B23K9/167 , B23K9/173 , B23K10/02 , B23K15/0046 , B23K15/0053 , B23K20/1205 , B23K20/129 , B23K26/20 , B23K26/28 , B23K33/006 , B23K2101/001 , F01D5/025
Abstract: The invention relates to a method for welding rotors for power generation such as gas turbines, steam turbines, and generators having a plurality of rotor discs arranged along a rotor axis. The method includes providing said discs with a weld seam preparation. The weld seam preparation includes a root, a first, gap-like welding section adjoining the root in radial direction, and a second, gap-like welding section adjoining the first welding section in radial direction. The method further includes melting the root by means of a first welding process; making a weld in the first welding section by means of a second welding process; and filling up the second welding section by means of a third welding process.
Abstract translation: 本发明涉及一种用于焊接发电用转子的方法，例如具有沿转子轴线布置的多个转子盘的燃气轮机，蒸汽轮机和发电机。 该方法包括向所述盘提供焊缝准备。 焊缝准备包括根部，与径向方向相邻的第一间隙状焊接部以及与第一焊接部沿径向相邻的第二间隙状焊接部。 该方法还包括通过第一焊接工艺熔化根部; 通过第二焊接工艺在第一焊接部分中进行焊接; 并通过第三焊接工艺填充第二焊接部分。
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公开(公告)号：US20140299581A1
公开(公告)日：2014-10-09
申请号：US14230147
申请日：2014-03-31
Applicant: ALSTOM Technology Ltd.
Inventor： Sorin KELLER , Werner Martin Balbach , Claus Paul Gerdes
CPC classification number: F01D5/063 , B23K9/00 , B23K9/0213 , B23K9/028 , B23K9/16 , B23K9/167 , B23K9/173 , B23K10/02 , B23K15/0046 , B23K15/0053 , B23K20/1205 , B23K20/129 , B23K26/20 , B23K26/28 , B23K33/006 , B23K2101/001 , F01D5/025
Abstract: The invention relates to a method for welding rotors for power generation such as gas turbines, steam turbines, and generators having a plurality of rotor discs arranged along a rotor axis. The method includes providing said discs with a weld seam preparation. The weld seam preparation includes a root, a first, gap-like welding section adjoining the root in radial direction, and a second, gap-like welding section adjoining the first welding section in radial direction. The method further includes melting the root by means of a first welding process; making a weld in the first welding section by means of a second welding process; and filling up the second welding section by means of a third welding process.
Abstract translation: 本发明涉及一种用于焊接发电用转子的方法，例如具有沿转子轴线布置的多个转子盘的燃气轮机，蒸汽轮机和发电机。 该方法包括向所述盘提供焊缝准备。 焊缝准备包括根部，与径向方向相邻的第一间隙状焊接部以及与第一焊接部沿径向相邻的第二间隙状焊接部。 该方法还包括通过第一焊接工艺熔化根部; 通过第二焊接工艺在第一焊接部分中进行焊接; 并通过第三焊接工艺填充第二焊接部分。
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公开(公告)号：US09441487B2
公开(公告)日：2016-09-13
申请号：US14244971
申请日：2014-04-04
Applicant: ALSTOM Technology Ltd
Inventor： Sorin Keller , Werner Martin Balbach , Gianni Giorgi , Holger Kiewel
CPC classification number: F01D5/063 , B23K9/0213 , B23K9/028 , B23K9/167 , B23K9/18 , B23K9/186 , B23K33/006 , B23K2101/001 , B23K2101/06 , F05D2230/232
Abstract: The invention relates to a method for welding rotors for power generation having a plurality of rotor discs arranged along a rotor axis. The method includes providing forged and NDT tested rotor discs and machining the discs for weld seam preparation. The weld seam preparation has an inner narrow TIG welding gap and an adjoining outer SAW welding gap. The method further includes stapling the discs on top of each other; and checking the run-out of the stapled discs relative to each other and as a whole and, if necessary, adjusting the staple. In addition the method includes melting the root of the weld without weld filler using TIG welding; increasing the weld height by narrow gap TIG welding with parent metal weld filler to allow tilting of the rotor in horizontal position; tilting the rotor in horizontal position; finalizing the welding by filling the outer SAW welding gap using SAW welding; and checking the welds of the rotor by NDT using ultrasonic testing. A weld seam preparation machining step that includes preparing an optimized transition geometry of TIG welding gap to SAW welding gap transition with a first opening having a first opening angle and a second opening having a second opening angle greater than said first opening angle.
Abstract translation: 本发明涉及一种用于焊接用于发电的转子的方法，其具有沿转子轴线布置的多个转子盘。 该方法包括提供锻造和NDT测试的转盘，并加工用于焊缝准备的盘。 焊缝准备具有内部窄TIG焊接间隙和相邻的外部SAW焊接间隙。 该方法进一步包括将盘彼此装在一起; 并且检查装订盘相对于彼此和作为整体的耗尽，并且如果需要，则调整钉。 此外，该方法包括使用TIG焊接熔化焊缝的根部而不使用焊接填料; 通过窄间隙TIG焊接母体金属焊接填料增加焊接高度，以允许转子在水平位置倾斜; 将转子倾斜在水平位置; 通过使用SAW焊接填充外部SAW焊缝来完成焊接; 并通过超声波检测用NDT检查转子的焊缝。 一种焊缝准备加工步骤，其包括利用具有第一开放角度的第一开口和具有大于所述第一开启角度的第二开启角度的第二开口来制备TIG焊接间隙对SAW焊接间隙过渡的优化的过渡几何形状。
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公开(公告)号：US20140299580A1
公开(公告)日：2014-10-09
申请号：US14244971
申请日：2014-04-04
Applicant: ALSTOM Technology Ltd.
Inventor： Sorin KELLER , Werner Martin Balbach , Gianni Giorgi , Holger Kiewel
CPC classification number: F01D5/063 , B23K9/0213 , B23K9/028 , B23K9/167 , B23K9/18 , B23K9/186 , B23K33/006 , B23K2101/001 , B23K2101/06 , F05D2230/232
Abstract: The invention relates to a method for welding rotors for power generation having a plurality of rotor discs arranged along a rotor axis. The method includes providing forged and NDT tested rotor discs and machining the discs for weld seam preparation. The weld seam preparation has an inner narrow TIG welding gap and an adjoining outer SAW welding gap. The method further includes stapling the discs on top of each other; and checking the run-out of the stapled discs relative to each other and as a whole and, if necessary, adjusting the staple. In addition the method includes melting the root of the weld without weld filler using TIG welding; increasing the weld height by narrow gap TIG welding with parent metal weld filler to allow tilting of the rotor in horizontal position; tilting the rotor in horizontal position; finalizing the welding by filling the outer SAW welding gap using SAW welding; and checking the welds of the rotor by NDT using ultrasonic testing. A weld seam preparation machining step that includes preparing an optimized transition geometry of TIG welding gap to SAW welding gap transition with a first opening having a first opening angle and a second opening having a second opening angle greater than said first opening angle.
Abstract translation: 本发明涉及一种用于焊接用于发电的转子的方法，其具有沿转子轴线布置的多个转子盘。 该方法包括提供锻造和NDT测试的转盘，并加工用于焊缝准备的盘。 焊缝准备具有内部窄TIG焊接间隙和相邻的外部SAW焊接间隙。 该方法进一步包括将盘彼此装在一起; 并且检查装订盘相对于彼此和作为整体的耗尽，并且如果需要，则调整钉。 此外，该方法包括使用TIG焊接熔化焊缝的根部而不使用焊接填料; 通过窄间隙TIG焊接母体金属焊接填料增加焊接高度，以允许转子在水平位置倾斜; 将转子倾斜在水平位置; 通过使用SAW焊接填充外部SAW焊缝来完成焊接; 并通过超声波检测用NDT检查转子的焊缝。 一种焊缝准备加工步骤，其包括利用具有第一开放角度的第一开口和具有大于所述第一开启角度的第二开启角度的第二开口来制备TIG焊接间隙对SAW焊接间隙过渡的优化的过渡几何形状。
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