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1. 发明申请

US20220176482A1 WORK STRING TUBING CONNECTION RESTORATION 有权
公开(公告)号：US20220176482A1
公开(公告)日：2022-06-09
申请号：US17683915
申请日：2022-03-01
申请人： Postle Industries, Inc.
发明人： Robert F. Miller , James D. Allen , Steven L. Stefancic
IPC分类号： B23K9/00 , C22C38/26 , C22C38/22 , C22C38/04 , B23K9/167 , B23K9/173 , E21B17/00 , B23K9/18 , C22C38/38 , C22C38/02 , B23K35/24 , G01R31/28 , B23K9/04 , C23C30/00 , E21B17/042
摘要： A hardfacing metal composition and method of restoring worn work string tubing by application of a hardfacing metal to the worn regions of the work string tubing.

2. 发明申请

US20220134346A1 WELDING SLAG CLEANING DEVICE, WELDING MACHINE HEAD AND WELDING SYSTEM 有权
公开(公告)号：US20220134346A1
公开(公告)日：2022-05-05
申请号：US17433148
申请日：2020-07-31
申请人： CHINA CONSTRUCTION SCIENCE AND INDUSTRY CORPORATION LTD.
发明人： Zhenming CHEN , Qingchuan FENG , Dongrong XIE , Zhizhen LV , Zhiyong ZUO , Shitao HUANG , Chengli XIE
IPC分类号： B02C7/12 , B23K9/32 , B23K9/18
摘要： Disclosed are a welding slag clearing device, a welding machine head and a welding system. The welding slag clearing device includes: a mounting frame; a slag crushing mechanism comprising a slag crushing wheel and an adjusting assembly, the slag crushing wheel is connected to the adjusting assembly, the adjusting assembly is connected to the mounting frame, and the adjusting assembly is configured to adjust a longitudinal distance of the slag crushing wheel relative to the mounting frame; and a welding slag recovery mechanism comprising a hollow recovery pipe and a connecting piece used for connecting the recovery pipe with the mounting frame, the recovery pipe is correspondingly arranged right behind the slag crushing mechanism in a transverse direction.

3. 发明授权

US11103947B2 Method of making a steel Yankee cylinder 有权
公开(公告)号：US11103947B2
公开(公告)日：2021-08-31
申请号：US15021803
申请日：2014-10-29
申请人： Valmet Aktiebolag
发明人： Stefan Moden , Magnus Hoegman , Andreas Hjaertqvist
IPC分类号： B23K9/02 , B23K9/035 , B23K9/16 , D21F5/02 , B23K33/00 , B23K9/18 , B23K9/007 , B23K103/04
摘要： The invention relates to a method of making a steel Yankee cylinder 1 by welding a cylindrical shell 2 to two end walls 3, 4 such that the cylindrical shell 2 and the end walls 3,4 together form the Yankee cylinder 1. The welding operation is carried out exclusively from the outside of the Yankee cylinder 1 and in the welding operation is carried out as a butt welding operation in which a backing material 7 is used on the inside of the Yankee cylinder 1 such that, between each end wall 3, 4 and the cylindrical shell 1, a single weld bead 8 is formed which extends all the way between the opposing surfaces 5, 6 and completely fuses the opposing surfaces 5, 6 of each end wall 3, 4 and the cylindrical shell 2 respectively.

4. 发明授权

US11084275B2 Methods and systems for hybrid deposition rate near net shape additive manufacturing 有权
公开(公告)号：US11084275B2
公开(公告)日：2021-08-10
申请号：US15587506
申请日：2017-05-05
申请人： Lincoln Global, Inc.
发明人： Badri K. Narayanan , Michael Kottman
IPC分类号： B33Y50/02 , B33Y30/00 , B33Y10/00 , B23K9/12 , B23K9/04 , B23K9/173 , B23K9/18 , B23K37/047 , B29C64/141
摘要： Embodiments of additive manufacturing systems are disclosed. In one embodiment, an additive manufacturing system includes an array of multiple electrodes for sequentially depositing material layer-by-layer to form a three-dimensional (3D) part. The system includes a power source to provide electrical power for establishing a welding arc for each electrode. The system includes a drive roll to drive each electrode. The system also includes a controller to operate the system at a first deposition rate to form first resolution contour portions of a layer of the part. The controller also operates the system at a second deposition rate to form second resolution fill portions of the layer of the part. The system provides variable width deposition at the second deposition rate using a variable number of the electrodes. The first deposition rate is lower than the second deposition rate, and the first resolution is higher than the second resolution.

5. 发明申请

US20210229204A1 SYSTEMS AND METHODS FOR MULTI-WIRE SUBMERGED ARC WELDING USING A FLUX-CORED WIRE ELECTRODE 有权
公开(公告)号：US20210229204A1
公开(公告)日：2021-07-29
申请号：US16776008
申请日：2020-01-29
申请人： LINCOLN GLOBAL, INC.
发明人： Stephan STARCK , Michele SCAPPIN , Michel JANY
IPC分类号： B23K9/00 , B23K35/02 , B23K35/368 , B23K35/36 , B23K9/18
摘要： Systems for multi-wire submerged arc welding including a flux-cored wire electrode comprising an internal flux, the internal flux comprising about 5% to about 70% of a carbonate compound and less than 25% of calcium fluoride (CaF2) by weight of the flux; an external flux for submerged arc welding, are provided such that, after a submerged arc welding process, the systems provide a weld metal comprising nitrogen in an amount of less than 100 ppm. Methods of performing multi-wire submerged arc welding using a flux-cored electrode and an external flux are also described.

6. 发明申请

US20210039187A1 ONE-SIDE SUBMERGED ARC WELDING METHOD AND ONE-SIDE SUBMERGED ARC WELDING DEVICE 有权
公开(公告)号：US20210039187A1
公开(公告)日：2021-02-11
申请号：US16966191
申请日：2019-01-25
申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
发明人： Hiroyoshi YOKOTA , Takanobu SUWA , Masaharu KOMURA , Shigeru KIHATA , Daisuke SUGIYAMA
IPC分类号： B23K9/18 , B23K9/02 , B23K9/095 , B23K9/10 , B23K37/02
摘要： A one-side submerged arc welding method, includes joining two steel plates butted against each other by submerged arc welding from one side using a plurality of electrodes. During the submerged arc welding, at least one of electrode distances between adjacent electrodes in an end part region of the steel plates is reduced to be smaller than the at least one of electrode distances in a region in front of the end part region. Variation in heat input into the electrode moved so as to reduce the at least one of electrode distances in a transitional region in which the at least one of electrode distances is reduced is within 20% relative to the heat input at a starting point of the transitional region.

7. 发明授权

US10913127B2 Method for starting a submerged arc welding process and welding apparatus 有权
公开(公告)号：US10913127B2
公开(公告)日：2021-02-09
申请号：US14440091
申请日：2012-11-02
申请人： ESAB AB
发明人： Hannes Raudsepp , Martin Andersson , Tomas Johansson , Rikard Ljungkvist
IPC分类号： B23K9/18 , B23K9/067 , B23K9/073
摘要： 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.

8. 发明授权

US10857617B2 Contact nozzle with split tip 有权
公开(公告)号：US10857617B2
公开(公告)日：2020-12-08
申请号：US15630705
申请日：2017-06-22
申请人： ESAB AB
发明人： Hannes Hugo Raudsepp , Pierre Magnus Robert Svedlund
IPC分类号： B23K9/26 , B23K9/12 , B23K9/032 , B23K9/18 , B23K9/173
摘要： A contact device for feeding current to one or more welding wires in a welding apparatus includes a split tip nozzle having first and second diametrically opposed slots formed therein and a biasing means for supplying an adjustable biasing force to first and second split tips to bias the first and second split tips together to ensure that a desired contact between the split tip nozzle and the one or more welding wires is maintained throughout the lifecycle of the nozzle. The biasing force may be applied by any means including, for example, a compression ring, interaction of tapered surfaces between the tube and the split tip nozzle, a compression or cylinder spring pre-mounted on the first and second split tips, a tensioning screw, etc.

9. 发明申请

US20200094340A1 ARC WELDING METHOD AND ARC WELDING ARRANGEMENT WITH FIRST AND SECOND ELECTRODES 审中-公开
公开(公告)号：US20200094340A1
公开(公告)日：2020-03-26
申请号：US16693539
申请日：2019-11-25
申请人： ESAB AB
发明人： Hannes Raudsepp , Vesa Kiiskinen
IPC分类号： B23K9/095 , B23K9/12 , B23K9/10 , B23K9/00 , B23K9/18 , B23K9/173
摘要： The present application relates to an arc welding arrangement and an electric arc welding method to be used with the arc welding arrangement. The arc welding arrangement comprising a first power source, a first electrode connected to say first power source, and a second electrode, said first electrode being adapted to generate a weld pool via a first electric arc present within a first arc region. The second electrode is operated at welding parameters adapted to ensure that excess energy from at least said first electrode is required to maintain said second arc ignited. The method comprises the step of feeding said second electrode so that it is allowed to consume excess energy from said first electrode to maintain said second arc ignited.

10. 发明授权

US10596665B2 Strip cladding heads having independent strip pressure adjustments and strip cladding systems with strip cladding heads having independent strip pressure adjustments 有权
公开(公告)号：US10596665B2
公开(公告)日：2020-03-24
申请号：US15392534
申请日：2016-12-28
申请人： Illinois Tool Works Inc.
发明人： Fabrizio Bernardo Brambilla , Catalin Toma , Domenico Redaelli , Petrus Hermanus Keultjes
IPC分类号： B23K37/04 , B23K25/00 , B23K37/06 , B23K9/04 , B23K9/18 , B23K9/133
摘要： Strip cladding heads having independent strip pressure adjustments and strip cladding systems with strip cladding heads having independent strip pressure adjustments are disclosed. A disclosed example cladding head for strip cladding system includes a first contact jaw, a second contact jaw, and a third contact jaw. The first contact jaw includes first and second contacts to deliver welding power to a cladding strip that is driven between the first and second contacts. The second contact jaw includes third and fourth contacts to deliver the welding power to the cladding strip that is driven between the third and fourth contacts. The third contact jaw includes fifth and sixth contacts to deliver the welding power to the cladding strip that is driven between the fifth and sixth contacts, where the first, second, and third contact jaws selectively provide symmetrical contact with the cladding strip across a width of the cladding strip when the cladding strip has one of at least three incremental strip widths, and the three incremental strip widths correspond to ones of the first, second, and third contact jaws.

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