公开(公告)号：WO2013091729A1

公开(公告)日：2013-06-27

申请号：PCT/EP2011/073978

申请日：2011-12-23

Applicant: ESAB AB ,  RAUDSEPP, Hannes

Inventor： RAUDSEPP, Hannes

IPC: B23K9/00 ,  B23K9/173 ,  B23K9/12 ,  B23K9/18

CPC classification number: B23K9/24 ,  B23K9/0017 ,  B23K9/121 ,  B23K9/123 ,  B23K9/14 ,  B23K9/1735 ,  B23K9/188

Abstract: An arc electric welding head (1) comprising a first contact device (3) housing a first duct (5) for feeding a first electrode (7) and providing electrical contact between a first power source (204) and said first electrode (7), a second contact device (11) housing a second duct (13) for feeding a second electrode (8) and providing electrical contact between a second power source (206) and said second electrode (8), said first and second contact devices being electrically insulated from each other, said first and second ducts being parallel. Said first and second ducts (5, 13) being arranged at a distance which allows for arcs (31, 33), between said first and second electrodes (7, 8) and a work piece (27) to be welded, to have an overlapping region (35), and in that said arc electric welding head (1) further comprises a third insulated duct (19) for feeding a cold wire (10) into said overlapping region (35).

Abstract translation: 一种电弧电焊头（1），包括容纳用于馈送第一电极（7）并且提供第一电源（204）和所述第一电极（7）之间的电接触的第一导管（5）的第一接触装置（3） ，第二接触装置（11），其容纳用于馈送第二电极（8）并且在第二电源（206）和所述第二电极（8）之间提供电接触的第二导管（13），所述第一和第二接触装置是 彼此电绝缘，所述第一和第二导管是平行的。 所述第一和第二管道（5,13）以允许在所述第一和第二电极（7,8）和待焊接的工件（27）之间的弧（31,33）的距离布置，以具有 并且所述电弧电焊头（1）还包括用于将冷线（10）供给到所述重叠区域（35）的第三绝缘管道（19）。

公开(公告)号：WO2022018620A1

公开(公告)日：2022-01-27

申请号：PCT/IB2021/056518

申请日：2021-07-19

Applicant: ESAB AB

Inventor： RAUDSEPP, Hannes

IPC: B23K9/18 ,  B23K9/095

Abstract: A method includes monitoring a submerged arc welding (SAW) operation in real-time; determining, based on the monitoring and in real-time, a discrepancy between a desired weld parameter and an actual weld parameter of a weld resulting from the SAW operation; and in response to determining the discrepancy, controlling a power supply, which provides power for the SAW operation, to modify at least one of balance or offset of an alternating current (AC) welding power signal supplied for the SAW operation to compensate for the discrepancy.

公开(公告)号：WO2013095221A1

公开(公告)日：2013-06-27

申请号：PCT/SE2011/051549

申请日：2011-12-20

Applicant: ESAB AB ,  RAUDSEPP, Hannes

Inventor： RAUDSEPP, Hannes

IPC: B23K9/12

CPC classification number: B23K9/28 ,  B23K9/123 ,  B23K9/173 ,  B23K9/26

Abstract: A contact tip (1) for gas metal-arc welding comprising: - A body (3) of a metal material with a tubular base portion (4) and two or more fingers (5a, 5b) extending in the axial direction from a front end of the base portion; - At least one wire-feed conduit (7) extending axially through the body, in which a welding wire is to be received and fed; - slots (10a, 10b) arranged between the fingers in order to space these apart, and - A spring means (11) surrounding the fingers and exerting a radially acting spring force on the fingers of such strength that the fingers, when cool, are kept spaced apart, such that no pressure will be exerted on the casing surface of a welding wire introduced in the wire-feed conduit, and when heated to a temperature above the softening temperature of the metal material, are compressed by the spring force radially inward in order to exert pressure on the casing surface of a welding wire received in the wire-feed conduit.

Abstract translation: 一种用于气体金属电弧焊接的接触尖端（1），包括： - 具有管状基部（4）的金属材料的主体（3）和从前部沿轴向延伸的两个或更多个指状物（5a，5b） 底部的端部; - 至少一个线材馈送导管（7），其沿轴向延伸通过所述主体，其中焊丝将被接收和供给; - 布置在指状物之间的狭槽（10a，10b），以便使它们分开;以及弹簧装置（11），围绕指状物并且在手指上施加径向作用的弹簧力，使得手指在冷却时是强度 保持间隔开，使得不会在引入导线管道的焊丝的壳体表面上施加压力，并且当加热到高于金属材料的软化温度的温度时，弹簧力被径向向内压缩 以便对容纳在送丝管道中的焊丝的套管表面施加压力。

公开(公告)号：WO2014067580A1

公开(公告)日：2014-05-08

申请号：PCT/EP2012/071685

申请日：2012-11-02

Applicant: ESAB AB

Inventor： RAUDSEPP, Hannes ,  ANDERSSON, Martin ,  JOHANSSON, Tomas ,  LJUNGKVIST, Rikard

IPC: B23K9/18 ,  B23K9/067 ,  B23K9/073

CPC classification number: B23K9/188 ,  B23K9/067 ,  B23K9/073 ,  B23K9/0732 ,  B23K9/186

Abstract: A method comprising an arc ignition phase (IP), an arc-stabilizing phase (AP) and a stable arc phase (SP). The arc stabilizing phase comprises an initial sub-phase (IS) comprising the step of feeding at least one hot wire (4, 12) at constant feed speed and a main sub-phase (MS) comprising the steps of feeding said hot wire at constant feed speed and feeding at least one cold wire (22) at constant feed speed. The stable arc phase comprises the steps of continuously adjusting the feed speed of the hot wire and continuously adjusting the feed speed of the cold wire. The invention also relates to a welding apparatus (1) for carrying out the method. The welding apparatus comprises a hot wire feeding means (150), a contact means (2), a cold wire feeding means (35) and a control unit (31). The control unit is adapted to control said hot wire feeding means to feed the hot wire at a constant feed speed during the initial sub-phase, feed the hot wire at a constant feed speed during the main sub-phase and to continuously during the stable arc phase adjust the feed speed of the hot wire. The control unit is adapted to control said cold wire feeding means to feed the cold wire at a constant feed speed during the main sub-phase and continuously during the stable arc phase adjust the cold wire feed speed.

Abstract translation: 一种包括电弧点火相（IP），电弧稳定相（AP）和稳定电弧相（SP）的方法。 电弧稳定阶段包括初始子相（IS），包括以恒定进料速度供给至少一根热丝（4,12）和主亚相（MS）的步骤，包括以下步骤：将所述热丝进料到 进给速度恒定，并以恒定进给速度供给至少一根冷丝（22）。 稳定的电弧阶段包括连续调整热丝的进给速度并连续调节冷丝的进给速度的步骤。 本发明还涉及一种用于实施该方法的焊接设备（1）。 焊接装置包括热丝进给装置（150），接触装置（2），冷丝进给装置（35）和控制单元（31）。 控制单元适于控制所述热丝进给装置，以在初始次相期间以恒定进给速度供给热丝，在主次相期间以恒定进给速度供给热丝，并在稳定期间连续进给 电弧相位调整热丝的进给速度。 控制单元适于控制所述冷丝进给装置，以在主子相期间以恒定进给速度供给冷丝，并且在稳定的电弧相位期间连续地调节冷丝进给速度。

公开(公告)号：WO2014026698A8

公开(公告)日：2014-02-20

申请号：PCT/EP2012/003461

申请日：2012-08-14

Applicant: ESAB AB ,  RAUDSEPP, Hannes ,  ANDERSSON, Martin ,  JOHANSSON, Tomas ,  LJUNGKVIST, Rikard

Inventor： RAUDSEPP, Hannes ,  ANDERSSON, Martin ,  JOHANSSON, Tomas ,  LJUNGKVIST, Rikard

IPC: B23K9/18 ,  B23K9/12

Abstract: The invention relates to a method for submerged arc welding comprising the steps of guiding a first hot wire (4; 4a, 4b) towards a work piece and guiding a cold wire (22; 22a, 22b) at a variable feed speed. The method further comprises the steps of continuously measuring, during a welding phase, at least a first active welding parameter related to at least said first hot wire (4; 4a, 4b) adjusting the cold wire (22; 22a, 22b) feed speed in dependence on at least first active welding parameter variations, to maintain high welding stability and high weld quality. The invention also relates to a system (9) for carrying out the method. The system (9) comprises hot wire feeding means (150) for feeding a first hot wire (4; 4a, 4b) towards a work piece and cold wire feeding means (35) for feeding a cold wire (22; 22a, 22b) at a variable cold wire (22; 22a, 22b) feed speed and a control unit (31) for controlling the second wire feeding means (35). The system (9) also comprises measuring means (27) adapted to continuously measure at least a first active welding parameter related to said first hot wire (4; 4a, 4b). The control unit (31) determines target values for the cold wire (22; 22a, 22b) feed speed, each target value corresponding to a first active welding parameter value and controls said second wire feeding means (35) to adjust said cold wire (22; 22a, 22b) feed speed to said target values.

公开(公告)号：WO2014102202A1

公开(公告)日：2014-07-03

申请号：PCT/EP2013/077765

申请日：2013-12-20

Applicant: ESAB AB

Inventor： RAUDSEPP, Hannes ,  KIISKINEN, Vesa

IPC: B23K9/00 ,  B23K9/12 ,  B23K9/173 ,  B23K9/18

CPC classification number: B23K9/095 ,  B23K9/0017 ,  B23K9/1006 ,  B23K9/1068 ,  B23K9/1081 ,  B23K9/121 ,  B23K9/123 ,  B23K9/1735 ,  B23K9/188

Abstract: The present application relates to an electric arc welding method to be used with an arc welding arrangement (1) comprising a first power source, a first electrode (2) connected to said first power source, and a second electrode (7), said first electrode (2) being adapted to generate a weld pool (28) via a first electric arc present within a first arc region (31) and said second electrode (7) being adapted to generate said weld pool via a second electric arc present within a second arc region. The first electrode (2) is operated at welding parameters adapted to maintain said first arc ignited. The second electrode (7) is operated at welding parameters adapted to ensure that excess energy from at least said first electrode (2) is required to maintain said second arc ignited. The method comprises the step of feeding said second electrode (7) so that it is allowed to consume excess energy from said first electrode (2) to maintain said second arc ignited. The invention also relates to an arc welding arrangement (1) for carrying out the method.

Abstract translation: 本发明涉及一种电弧焊接方法，该电弧焊接方法包括：第一电源，与所述第一电源连接的第一电极和第二电极， 电极（2）适于通过存在于第一电弧区域（31）内的第一电弧产生焊池（28），并且所述第二电极（7）适于通过存在于第一电弧区域 第二弧区域。 第一电极（2）在适于维持所述第一电弧点火的焊接参数下操作。 第二电极（7）在适于确保需要来自至少所述第一电极（2）的多余能量以维持所述第二电弧点火的焊接参数下操作。 该方法包括进给所述第二电极（7）使得允许从所述第一电极（2）消耗多余能量以维持所述第二电弧点火的步骤。 本发明还涉及一种用于实施该方法的电弧焊接装置（1）。

公开(公告)号：WO2008108728A1

公开(公告)日：2008-09-12

申请号：PCT/SE2008/050240

申请日：2008-03-04

Applicant: ESAB AB ,  RAUDSEPP, Hannes ,  JANSSON, Bo

Inventor： RAUDSEPP, Hannes ,  JANSSON, Bo

IPC: B23K9/29 ,  B23K9/18

CPC classification number: B23K9/188

Abstract: A contact fitting (1) for a welding apparatus is described. The contact fitting (1) comprises a length axis (6), a housing (7), a first contact device (32), a second contact device (33) and a third contact device (25) which is arranged between the first contact device (32) and the second contact device (33), which is movable in relation to both the first contact device (32) and the second contact device (33). The first contact device (32) has an elongated form, is arranged fixed in the housing (7) and extends from a first end (24), which is arranged between the first end (8) of the housing (7) and the second end (9) of the housing (7), to a second end (13). The second contact device (33) has an elongated form, is suspended spring-loaded to the housing (7) and extends from a first end (17), which is arranged between the first end (8) of the housing (7) and the second end (9) of the housing (7), to a second end (18).

Abstract translation: 描述了用于焊接设备的接触配件（1）。 接触配件（1）包括长轴（6），壳体（7），第一接触装置（32），第二接触装置（33）和第三接触装置（25） 装置（32）和第二接触装置（33），其可相对于第一接触装置（32）和第二接触装置（33）两者移动。 第一接触装置（32）具有细长形状，其被布置成固定在壳体（7）中并且从布置在壳体（7）的第一端部（8）和第二端部（24）之间的第一端部（24）延伸， 壳体（7）的端部（9）延伸到第二端（13）。 第二接触装置（33）具有细长形式，被弹簧加载到壳体（7）并且从布置在壳体（7）的第一端部（8）和第一端部（7）之间的第一端部（17）延伸 壳体（7）的第二端（9）到第二端（18）。