CN100441361C - Method for controlling welding deformations of special type motor bedplate - Google Patents
Method for controlling welding deformations of special type motor bedplate Download PDFInfo
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- CN100441361C CN100441361C CNB2006100217288A CN200610021728A CN100441361C CN 100441361 C CN100441361 C CN 100441361C CN B2006100217288 A CNB2006100217288 A CN B2006100217288A CN 200610021728 A CN200610021728 A CN 200610021728A CN 100441361 C CN100441361 C CN 100441361C
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Abstract
A method for controlling the weld deformation of special motor base includes such steps as using supporter and technological flange to fix the base of motor, drawing crossed central lines X and Y on the external surface of top end ring, drawing eight-division lines at the weld seam, cleaning with acetone and silk fabric, argon arc welding, abrading the welded seam, color inspecting, and synchronously and symmetrically welding by two welding workers layer by layer while vibration beating for each layer except surface layer.
Description
Technical field
The bright electric machine stand solder technology that relates to of we particularly relates to a kind of welding deformation controlling method of specific type of electric machine support.
Back of the body amount technology
The support welding of some specific type of electric machine products, according to the support designing requirement, after installing, support and stator core could weld with top ring, and welding process requirement is also strict especially, post welding distortion can not surpass 0.07mm, weld seam not under the situation of back chipping ultrasonic examination I level qualified, unannealed elimination welding stress.Welding deformation control mostly at present, reserve allowance by adopting, the method of machining reaches the axiality requirement, but the motor that has assembled for the support inner-stator iron core, then can't adopt the method for machining, can not carry out annealing in process and eliminate welding stress, and support and top ring weld seam be inconel weld, can't back chipping, require ultrasonic examination I level qualified for postwelding, difficulty is very big.
Summary of the invention
The objective of the invention is to, a kind of method for controlling welding deformations of special type motor bedplate is provided, after installing for support and stator core again with the top ring welding and for the strict especially electric machine stand of welding process requirement, when welding frame and top ring, adopt welding procedure and welding sequence rational, science, strict control welding deformation, thus reach the product quality requirement, guaranteed carrying out smoothly of production use.
The technical solution adopted in the present invention is: method for controlling welding deformations of special type motor bedplate, it comprises the steps:
(1) cold making angle bar frame, mach process flange of support upper end dress weldering, process flange is concentric with support, plane and interior planchet 3mm rubber gasket on the process flange;
(2) use the stainless steel lifting bolt that support is lifted on carriage center, the support behind assembling and the tack welding, top ring by the process flange fixation on the support, are vertically hung;
(3) draw X, Y cross centre line at the top ring outer surface, draw the eight equal parts line in the top ring commissure, a dial gauge is adorned at each frame of cross centre line in the back of marking, and dial gauge is adjusted to 0;
(4) adopt the argon arc welding bottoming, use acetone or silk to clean groove before the weldering, postwelding adopts dihedral emery wheel reconditioning weld seam, dye penetrant inspection;
(5) prime coat qualified after, by the welding synchronously of technological requirement and welding sequence symmetry, the prosecutor monitors the dial gauge reading by two welders, measure interlayer temperature by the Remote Control Automatic temperature measurer of far infrared, interlayer temperature is controlled at 50 ℃, every weldering one deck, air pressure gun vibration hammering 5-8 time, adopt dihedral emery wheel reconditioning weld seam, remove welding slag, confirm to weld one deck down behind the zero defect, 3 layers of every welderings, dye penetrant inspection once, welding finishes, superficial layer does not vibrate hammering.
For satisfying the requirement that post welding distortion can not surpass 0.07mm, support is vertical with top ring to hang welding, can be by workpiece deadweight reducing welding deformation; Two welders are with the welding synchronously of weldering speed symmetry; Adopt minor diameter to weld with the material welding rod; Set up 4 dial gauges; The welding of multilayer multiple tracks, layer temperature control is in 50 ℃.
For satisfying the not qualified requirement of ultrasonic examination I level under the situation of back chipping of weld seam, adopt the argon arc welding bottoming, manual multilayer multiple tracks welding guarantees that full welding is qualified thereby successively ensure the quality of products.
Eliminate the requirement of welding stress for satisfying to anneal, adopt every weldering one deck, the air pressure gun vibration, the hammering weld seam eliminates stress.
When the process flange dress on the angle bar frame welded, process flange was concentric with support.Plane and interior planchet 3mm rubber gasket avoid plain steel to contact with support on the process flange, cause magnetic conduction.
Minor diameter, with the material welding rod, the welding of little standard can reduce weld heat input and heat affected area temperature, when reducing welding deformation, avoids the too high support inner-stator iron core damage that causes of temperature.Technology determines to select for use the employing minor diameter with material A132, the welding of Ф 2.5 welding rods, electric current 60A-80A.
Monitor the dial gauge reading in the welding and write down welding deformation, control every layer of weld bead height≤3mm, measure interlayer temperature with the Remote Control Automatic temperature measurer of far infrared, layer temperature control is in 50 ℃.
The present invention specific type of electric machine support welding procedure and welding sequence rational by formulating, science, successfully solved the support welding deformation control, welding deformation is controlled in the 0.07mm, weld seam not under the situation of back chipping 100% ultrasonic examination I level once qualified, also eliminated welding stress without annealing in process, effectively the control welding deformation makes things convenient for, has satisfied the product strict quality requirement compactly, has very strong novelty and practicality.
Description of drawings
Fig. 1 is an electric machine stand welding sequence schematic diagram of the present invention.
The specific embodiment
As Fig. 1, along the circumferential direction dividing equally according to X, Y cross centre line in the commissure of top ring is eight equal portions, and two welders respectively according to the order of the 1-4 welding portion that indicates among the figure, weld the speed symmetry together and weld synchronously in a clockwise direction.
The step of method for controlling welding deformations of special type motor bedplate is:
(1) cold making angle bar frame, mach process flange of support upper end dress weldering;
(2) use the stainless steel lifting bolt that support is lifted on carriage center, the support behind assembling and the tack welding, top ring by the process flange fixation on the support, are vertically hung;
(3) draw X, Y cross centre line at the top ring outer surface, draw the eight equal parts line in the top ring commissure, a dial gauge is adorned at each frame of cross centre line in the back of marking, and dial gauge is adjusted to 0;
(4) adopt the argon arc welding bottoming, use acetone or silk to clean groove before the weldering, postwelding adopts dihedral emery wheel reconditioning weld seam, dye penetrant inspection;
(5) prime coat qualified after, by the welding synchronously of technological requirement and welding sequence symmetry, the prosecutor monitors the dial gauge reading by two welders, measure interlayer temperature by the Remote Control Automatic temperature measurer of far infrared, interlayer temperature is controlled at 50 ℃, every weldering one deck, air pressure gun vibration hammering 5-8 time, adopt dihedral emery wheel reconditioning weld seam, remove welding slag, confirm to weld one deck down behind the zero defect, 3 layers of every welderings, dye penetrant inspection once, welding finishes, superficial layer does not vibrate hammering.
When the process flange dress on the angle bar frame welded, process flange was concentric with support.Plane and interior planchet 3mm rubber gasket on the process flange.
Monitor the dial gauge reading in the welding and write down welding deformation, control every layer of weld bead height≤3mm, measure interlayer temperature with the Remote Control Automatic temperature measurer of far infrared, layer temperature control is in 50 ℃.
Claims (3)
1, method for controlling welding deformations of special type motor bedplate is characterized in that it comprises the steps:
(1) cold making angle bar frame, mach process flange of support upper end dress weldering;
(2) use the stainless steel lifting bolt that support is lifted on carriage center, the support behind assembling and the tack welding, top ring by the process flange fixation on the support, are vertically hung;
(3) draw X, Y cross centre line at the top ring outer surface, draw the eight equal parts line in the top ring commissure, a dial gauge is adorned at each frame of cross centre line in the back of marking, and dial gauge is adjusted to 0;
(4) adopt the argon arc welding bottoming, use acetone or silk to clean groove before the weldering, postwelding adopts dihedral emery wheel reconditioning weld seam, dye penetrant inspection;
(5) prime coat qualified after, by the welding synchronously of technological requirement and welding sequence symmetry, the prosecutor monitors the dial gauge reading by two welders, measure interlayer temperature by the Remote Control Automatic temperature measurer of far infrared, interlayer temperature is controlled at 50 ℃, every weldering one deck, air pressure gun vibration hammering 5-8 time, adopt dihedral emery wheel reconditioning weld seam, remove welding slag, confirm to weld one deck down behind the zero defect, 3 layers of every welderings, dye penetrant inspection once, welding finishes, superficial layer does not vibrate hammering.
2, method for controlling welding deformations of special type motor bedplate according to claim 1 is characterized in that, process flange is concentric with support, plane and interior planchet 3mm rubber gasket on the process flange.
3, method for controlling welding deformations of special type motor bedplate according to claim 1 is characterized in that, every layer of weld bead height≤3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100217288A CN100441361C (en) | 2006-09-01 | 2006-09-01 | Method for controlling welding deformations of special type motor bedplate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100217288A CN100441361C (en) | 2006-09-01 | 2006-09-01 | Method for controlling welding deformations of special type motor bedplate |
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| Publication Number | Publication Date |
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| CN1915573A CN1915573A (en) | 2007-02-21 |
| CN100441361C true CN100441361C (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100217288A Expired - Fee Related CN100441361C (en) | 2006-09-01 | 2006-09-01 | Method for controlling welding deformations of special type motor bedplate |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101564577B (en) * | 2009-06-05 | 2015-08-12 | 贵州航天风华精密设备有限公司 | A kind of method reducing medical accelerator support and head plate welding deformation |
| CN101947681A (en) * | 2010-09-20 | 2011-01-19 | 浙江诚信医化设备有限公司 | Welding technology of stainless steel measuring tank |
| CN102922161B (en) * | 2012-11-19 | 2015-11-25 | 武汉船用机械有限责任公司 | A kind of control method of principal weld welding deformation of crane for ship |
| CN104741741B (en) * | 2015-03-27 | 2017-03-15 | 西安石油大学 | A kind of pipe pipe docking all positon automatic TIG welding technique of continuous pipe |
| CN107552992A (en) * | 2017-10-27 | 2018-01-09 | 上海振华重工电气有限公司 | Weight pound class arc plate flat fillet weld automatic soldering method |
| CN110732759B (en) * | 2019-11-18 | 2021-09-07 | 中国航发贵州黎阳航空动力有限公司 | Welding deformation control method and device for injection angle of flame tube vortex device mounting base |
| CN111992848A (en) * | 2020-07-31 | 2020-11-27 | 江麓机电集团有限公司 | Process method for improving wear resistance of gear ring of driving wheel of armored vehicle |
Citations (3)
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|---|---|---|---|---|
| JP2004150432A (en) * | 2002-10-30 | 2004-05-27 | General Electric Co <Ge> | Method of repairing stationary shroud of gas turbine engine using plasma transferred arc welding |
| CN1554508A (en) * | 2003-12-26 | 2004-12-15 | 东方汽轮机厂 | Deformation control method for large structure piece welding |
| JP2005230826A (en) * | 2004-02-17 | 2005-09-02 | Ishikawajima Harima Heavy Ind Co Ltd | Nozzle for supplying molten metal |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004150432A (en) * | 2002-10-30 | 2004-05-27 | General Electric Co <Ge> | Method of repairing stationary shroud of gas turbine engine using plasma transferred arc welding |
| CN1554508A (en) * | 2003-12-26 | 2004-12-15 | 东方汽轮机厂 | Deformation control method for large structure piece welding |
| JP2005230826A (en) * | 2004-02-17 | 2005-09-02 | Ishikawajima Harima Heavy Ind Co Ltd | Nozzle for supplying molten metal |
Non-Patent Citations (2)
| Title |
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| 600MW汽轮发电机机座焊接变形的控制. 纪玫红.上海大中型电机，第2003卷第4期. 2003 |
| 600MW汽轮发电机机座焊接变形的控制. 纪玫红.上海大中型电机，第2003卷第4期. 2003 * |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dongfang Electric (Leshan) new energy equipment Co., Ltd. Assignor: Dongfeng Motor Factory Co., Ltd., Sichuan Contract record no.: 2011510000077 Denomination of invention: Method for controlling welding deformations of special type motor bedplate Granted publication date: 20081210 License type: Exclusive License Open date: 20070221 Record date: 20110602 |
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Owner name: DONGFANG ELECTRIC GROUP DONGFENG MOTOR CO., LTD. Free format text: FORMER NAME: DONGFENG MOTOR FACTORY CO., LTD., SICHUAN |
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| CP01 | Change in the name or title of a patent holder |
Address after: Leshan City, Sichuan province Wutongqiao District 614802 Sichuan Dongfeng Motor Factory Co Ltd Patentee after: DEC Dongfeng Electric Machinery Co., Ltd. Address before: Leshan City, Sichuan province Wutongqiao District 614802 Sichuan Dongfeng Motor Factory Co Ltd Patentee before: Dongfeng Motor Factory Co., Ltd., Sichuan |
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