CN100434222C - Welding process and apparatus for major diameter roller - Google Patents
Welding process and apparatus for major diameter roller Download PDFInfo
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- CN100434222C CN100434222C CNB2006100298891A CN200610029889A CN100434222C CN 100434222 C CN100434222 C CN 100434222C CN B2006100298891 A CNB2006100298891 A CN B2006100298891A CN 200610029889 A CN200610029889 A CN 200610029889A CN 100434222 C CN100434222 C CN 100434222C
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- diameter roller
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Abstract
The invention relates to a method for welding roller with large diameter, and a relative device, wherein it uses special automatic welding rotation table, automatically welding operator and silicon arc controllable rectifier; using oxygen-gas to heat, and using amianthine plate to insulate heat, to preheat the large-diameter roller, and insulate heat interlayer, then cooling slowly, to eliminate stress anneal. The invention can use present device, to weld the large-diameter roller with low cost, while the strength of welding seam can reach 100N/mm2 as torque.
Description
Technical field
The present invention relates to a kind of welding method and device of large-diameter cylinder body welded unit, particularly relate to welding method between the differential profiles and welder in the major diameter roller body.
Technical background
General cylindrical shell welded unit is because barrel diameter is little, arc welding welding by hand, welder is simple, technical difficulty is not high, has been mature technique comparatively, if but workpiece size is bigger, barrel diameter surpasses the large-diameter cylinder body welded unit of 1000mm, still arc welding welding by hand just be cannot say for sure to demonstrate,prove welding quality to tend to produce defectives such as pore, slag inclusion, crack.Major diameter roller in the middle density artificial board production line is one of other parts of key of this production equipment drive system, it is a kind of welding structural element, diameter is bigger, generally all surpass 1000mm, and be that thickness all is the welding that surpasses differential profiles between the cylindrical shell of arc shape of 45mm and plane end plate and the middle bar-shaped roll shaft, still the arc welding welding does not just reach quality requirement by hand, must dispose the welder of a cover adaptation major diameter roller welding and technology, the method for a whole set of unusual welding and just can reach quality requirement.
Summary of the invention
By the processing method to major diameter roller of economy, meeting the requirements of welding quality is purpose of the present invention.Technical scheme of the present invention is to adopt the submerged-arc welding equipment of customization, suits measures to local conditions, and with the heating of oxy-acetylene gas, the asbestos board of customization carries out under the heat insulation situation major diameter roller welded part being carried out preheating, interlayer insulation, postheating, stress relief annealing.Technical scheme of the present invention is to come specific implementation by following technical measures: a kind of welding method that comprises the major diameter roller of large-diameter cylinder body 1, end plate 2, intermediate plate 3 and roll shaft 4, it is characterized in that: the weldment weld is gone out unidirectional U-shaped groove type by machined into, cold-working is made back chipping and is handled, with general worker's folder with each weldment fixed-site, be seated on the large-scale automatic floor turnable positioner 101 the adjustment center; Before the welding iron rust in the groove, greasy dirt, water, dust etc. are cleaned out, welded with evenly being preheated to 120-150 ℃ in the 150-200mm scope near the welding torch aligning groove with oxy-acetylene; Adopt automatic manipulator 102 to adjust in length and breadth to the welding position that reaches height, with arc welding silicon controlled rectifier 103 is Arc Welding Power, after adjusting voltage, electric current (electric current is that 400-700A, voltage are 30-40V), aim at the roll body weld and carry out the submerged-arc welding welding, automatic panoramic table 101 is with the linear velocity uniform rotation of per minute 40-70mm during welding, need before the solder flux of submerged-arc welding uses to cure 1 hour, put into 80-100 ℃ of baking oven then with getting with usefulness through 250-300 ℃; After the welding, major diameter roller welded unit integral body is heated to 560-580 ℃, insulation is 2 hours in the case stove, and slow cooling guarantees moulding weld seam cracking resistance seam and eliminates welding stress; The test weld strength can reach design driven torque 100N/mm
2, the weldquality ultrasound examination, defectives such as pore-free, slag inclusion, crack reach ministry standard JB4730-1991I level.A kind of device of implementing the welding method of above-mentioned major diameter roller, it is characterized in that it by large-diameter cylinder body 1, end plate 2, intermediate plate 3, roll shaft 4, automatically floor turnable positioner 101, manipulator 102 and arc welding silicon controlled rectifier 103 are formed automatically, wherein: the major diameter roller of being made up of large-diameter cylinder body 1, end plate 2, intermediate plate 3 and roll shaft 4 inserts the centre of gyration of automatic floor turnable positioner 102; Weld by weldering part large-diameter cylinder body 1, end plate 2, intermediate plate 3 and roll shaft 4 all is processed with the U-shaped groove; Automatically manipulator 102 adopt cooperate welding wires and solder flux, can do in length and breadth to the automatic submerged arc welding manipulator of regulating and height and position is regulated; Automatically the floor turnable positioner 101 employing scopes of application are that ∮ 1000mm-∮ 2600mm, turning spur speed are the automatic floor turnable positioner of per minute 40mm-70mm; The electric current of Arc Welding Power arc welding silicon controlled rectifier [103] is that 400A-700A, voltage are 30V-40V
The scope that the present invention is suitable for major diameter roller is ∮ 1000mm-∮ 2600mm.
Good effect of the present invention has been to design the process conditions that are applicable to the welding of major diameter roller member, makes full use of the existing equipment condition, finishes the welding of major diameter roller economically, accomplishes that weld strength reaches design driven torque 100N/mm
2, the weldquality ultrasound examination, defectives such as pore-free, slag inclusion, crack reach ministry standard JB4730-1991I level.Reach the quality of designing requirement.
Description of drawings
Accompanying drawing provides the welder and the welded unit structural representation of major diameter roller of the present invention.
Listed mark respectively is expressed as follows the meaning in the accompanying drawing:
1----large-diameter cylinder body 2----end plate 3----intermediate plate 4----roll shaft
The automatic manipulator 103----of the automatic floor turnable positioner 102----of 101----arc welding silicon controlled rectifier
The specific embodiment
One embodiment of the present of invention are the welding of producing the press drive roll member of density artificial board among the fabric width 1220mm.By the cylindrical shell 1 of ∮ 2222mm * 1700mm (diameter * length), to place the thickness at cylindrical shell two ends be that the two end plates 2 of 45mm, the intermediate plate 3 at cylindrical shell middle part and 5 parts such as axle 4 that diameter is 370mm are formed, each part is metal of the same race, material is 16Mn.Above-mentioned 5 weldment welds are gone out unidirectional U-shaped groove type by machined into, and cold-working is made back chipping and is handled, and with each weldment fixed-site, is seated on the large-scale automatic floor turnable positioner 101 of HZT-20-00 type the adjustment center with general worker's folder; Before the welding iron rust in the groove, greasy dirt, water, dust etc. are cleaned out, welded with being preheated to 120-150 ℃ in the 150-200mm scope near the welding torch aligning groove with oxy-acetylene; Adopt the automatic manipulator 102 of general HJT5 type to adjust in length and breadth to the welding position that reaches height, with MZD-1250 arc welding silicon controlled rectifier 103 is Arc Welding Power, after adjusting voltage, electric current (electric current is that 650A, voltage are 38V), aim at the roll body weld and carry out the submerged-arc welding welding, automatic panoramic table 101 is with the linear velocity uniform rotation of per minute 50mm during welding, the welding wire of submerged-arc welding adopts H08MnA diameter 5mm commonly used, solder flux adopts H421, need before using to cure 1 hour, put into 80-100 ℃ of baking oven then with getting with usefulness through 250-300 ℃; After the welding, major diameter roller welded unit integral body is heated to 560-580 ℃, insulation is 2 hours in the case stove, and slow cooling guarantees moulding weld seam cracking resistance seam and eliminates welding stress; The test weld strength can reach design driven torque 100N/mm
2, the weldquality ultrasound examination, defectives such as pore-free, slag inclusion, crack reach ministry standard JB4730-1991I level.
Claims (5)
1. welding method that comprises the ∮ 1000mm-∮ 2600mm major diameter roller of large-diameter cylinder body [1], end plate [2], intermediate plate [3] and roll shaft [4], it is characterized in that: the weld of cylindrical shell [1], end plate [2], intermediate plate [3] and each weldment of roll shaft [4] is gone out unidirectional U-shaped groove type by machined into, with general worker's folder with each weldment fixed-site, be seated on the large-scale automatic floor turnable positioner [101] the adjustment center; Before the welding iron rust, greasy dirt, water, dust in the unidirectional U-shaped groove are cleaned out, welded with evenly being preheated to 120 ℃-150 ℃ in the 150mm-200mm scope near the welding torch aligning groove with oxy-acetylene; Adopt automatic manipulator [102] to adjust in length and breadth to the welding position that reaches height, with arc welding silicon controlled rectifier [103] is Arc Welding Power, the adjustment electric current is after 400-700A, voltage are 30-40V, aim at the roll body weld and carry out the submerged-arc welding welding, automatic floor turnable positioner [101] is with the linear velocity uniform rotation of per minute 40mm-70mm during welding, need before the solder flux of submerged-arc welding uses to cure 1 hour, put into 80 ℃ of-100 ℃ of baking ovens then with getting with usefulness through 250 ℃-300 ℃; After the welding, major diameter roller welded unit integral body is heated to 560 ℃-580 ℃, insulation is 2 hours in the case stove, and slow cooling guarantees moulding weld seam cracking resistance seam and eliminates welding stress; The test weld strength can reach design driven torque 100N/mm
2, the weldquality ultrasound examination, pore-free, slag inclusion, rift defect reach ministry standard JB4730-1991I level.
2. the welder of the major diameter roller of a welding method of implementing the described major diameter roller of claim 1, it is characterized in that this device by large-diameter cylinder body [1], end plate [2], intermediate plate [3], roll shaft [4], automatically floor turnable positioner [101], manipulator [102] and arc welding silicon controlled rectifier [103] are formed automatically, wherein: the major diameter roller of being made up of large-diameter cylinder body [1], end plate [2], intermediate plate [3] and roll shaft [4] inserts the centre of gyration of automatic floor turnable positioner [102]; Weld by weldering part large-diameter cylinder body [1], end plate [2], intermediate plate [3] and roll shaft [4] all is processed with in the unidirectional U-shaped groove.
3. the welder of major diameter roller according to claim 2, it is characterized in that described automatic manipulator [102] adopt cooperate welding wire and solder flux, can do in length and breadth to the automatic submerged arc welding manipulator of regulating and height and position is regulated.
4. the welder of major diameter roller according to claim 2 is characterized in that it is that ∮ 1000mm-∮ 2600mm, turning spur speed are the automatic floor turnable positioner of per minute 40mm-70mm that described automatic floor turnable positioner [101] adopts the scope of application.
5. the welder of major diameter roller according to claim 2, the electric current that it is characterized in that described arc welding silicon controlled rectifier [103] is that 400A-700A, voltage are 30V-40V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100298891A CN100434222C (en) | 2006-08-10 | 2006-08-10 | Welding process and apparatus for major diameter roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100298891A CN100434222C (en) | 2006-08-10 | 2006-08-10 | Welding process and apparatus for major diameter roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1907625A CN1907625A (en) | 2007-02-07 |
| CN100434222C true CN100434222C (en) | 2008-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100298891A Expired - Fee Related CN100434222C (en) | 2006-08-10 | 2006-08-10 | Welding process and apparatus for major diameter roller |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352785B (en) * | 2007-07-23 | 2010-05-26 | 上海重型机器厂有限公司 | Method for welding pressing sleeve of large-sized hydraulic press |
| US8444039B2 (en) * | 2010-01-29 | 2013-05-21 | GM Global Technology Operations LLC | Thermally-insulated vibration welding tool |
| CN102284775B (en) * | 2010-06-17 | 2013-08-28 | 上海宝钢设备检修有限公司 | Method for welding roll gaps of large-diameter technical roller coiled by plank stuffs |
| CN104526171B (en) * | 2014-11-04 | 2016-10-12 | 南方增材科技有限公司 | Hardware electric smelting manufacturing process |
| CN104772587B (en) * | 2015-04-20 | 2017-10-13 | 骏马石油装备制造有限公司 | A kind of injection boiler unit convection section Coil welding work station |
| CN104942484A (en) * | 2015-06-25 | 2015-09-30 | 苏州边桐传感科技有限公司 | Steel coil clamping type welding device with correction function and detection function |
| CN104959768A (en) * | 2015-06-26 | 2015-10-07 | 苏州边桐传感科技有限公司 | Adjustable steel coil clamping and welding device |
| CN112008208A (en) * | 2020-09-02 | 2020-12-01 | 中国电建集团山东电力建设第一工程有限公司 | Method for controlling welding temperature of steel structure in alpine region |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034098U (en) * | 1988-05-10 | 1989-03-15 | 吉林工业大学 | Scr arc welding rectifier and integrated controlled circuit |
| JPH1034329A (en) * | 1996-07-26 | 1998-02-10 | Mitsubishi Heavy Ind Ltd | Method and device for welding annular article of large diameter |
| CN1355080A (en) * | 2000-11-30 | 2002-06-26 | 王英杰 | Hidden arc build-up welding method for repairing internal surface of pipe-casting mould |
| CN1360991A (en) * | 2000-12-29 | 2002-07-31 | 中国石油化工集团公司 | Welding process and welded part of bottom and skirt support for high pressure container |
| CN1569378A (en) * | 2004-04-23 | 2005-01-26 | 沪东重机股份有限公司 | Angular end-to-end welding method for super long and thick steel plates |
| US20050035094A1 (en) * | 2003-07-03 | 2005-02-17 | Mannesmannrohren-Werke Ag | Method and apparatus for making welded large pipes |
| CN1663725A (en) * | 2004-03-02 | 2005-09-07 | 上海重型机器厂 | Welding process for large-scale forged-welded member |
-
2006
- 2006-08-10 CN CNB2006100298891A patent/CN100434222C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034098U (en) * | 1988-05-10 | 1989-03-15 | 吉林工业大学 | Scr arc welding rectifier and integrated controlled circuit |
| JPH1034329A (en) * | 1996-07-26 | 1998-02-10 | Mitsubishi Heavy Ind Ltd | Method and device for welding annular article of large diameter |
| CN1355080A (en) * | 2000-11-30 | 2002-06-26 | 王英杰 | Hidden arc build-up welding method for repairing internal surface of pipe-casting mould |
| CN1360991A (en) * | 2000-12-29 | 2002-07-31 | 中国石油化工集团公司 | Welding process and welded part of bottom and skirt support for high pressure container |
| US20050035094A1 (en) * | 2003-07-03 | 2005-02-17 | Mannesmannrohren-Werke Ag | Method and apparatus for making welded large pipes |
| CN1663725A (en) * | 2004-03-02 | 2005-09-07 | 上海重型机器厂 | Welding process for large-scale forged-welded member |
| CN1569378A (en) * | 2004-04-23 | 2005-01-26 | 沪东重机股份有限公司 | Angular end-to-end welding method for super long and thick steel plates |
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| CN1907625A (en) | 2007-02-07 |
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Granted publication date: 20081119 Termination date: 20170810 |