CN101829838A - Welding method - Google Patents
Welding method Download PDFInfo
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- CN101829838A CN101829838A CN 201010182247 CN201010182247A CN101829838A CN 101829838 A CN101829838 A CN 101829838A CN 201010182247 CN201010182247 CN 201010182247 CN 201010182247 A CN201010182247 A CN 201010182247A CN 101829838 A CN101829838 A CN 101829838A
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Abstract
The invention provides a welding method for welding a butt-jointed seam between two pipes. The welding method comprises the following steps of: providing a transfer roller, making the roller cling to the inner wall of the seam and welding from the outer wall of the steel pipe by a welding gun. The roller rotates along with the rotation of the roller, and the roller and the welding gun are always kept at the corresponding positions of the inner side and the outer side of the seam. High-temperature resistance asbestos is wound on the outer edge of the roller, so that not only the roller is prevented from being damaged caused by the too high temperature, but also the molten metal is prevented from flowing outwards. The device is applied to replacing the high-cost ceramic liner, thereby the welding cost is reduced obviously, and the production efficiency of welding is improved.
Description
Technical field
The present invention relates to a kind of welding method, particularly a kind ofly adopt single-sided welding and the welding method of two-sided full penetration.
Background technology
At present the welding procedure of steel pipe girth joint full penetration generally adopts gas shielded arc welding (have semi-automatic or weld two kinds of methods automatically).In order to realize the weld seam full penetration, a kind of is welding by both sides, but the welding efficiency of welding by both sides is lower.Another is the ceramic substrate single face welding and double face shaping mode that adopts in order to raise the efficiency, and the shortcoming of this method is that cost is higher, and the fit-up gap requires also more complicated of high assembly process.Because ceramic substrate is disposable welding auxiliary material, postwelding just produces the industrial refuse of solid.All this this limited to using in a large number and promoting of ceramic blanket.
Therefore, need a kind of new welding method to address the above problem.
Summary of the invention
At the existing problem and shortage of above-mentioned existing welding method, the purpose of this invention is to provide a kind of welding method, this welding method can reduce welding cost and improve welding efficiency.
For achieving the above object, the present invention can adopt following technical scheme: the circumferential welded seam that is used for the welded still pipe butt joint, provide the transfer roller to be close to the weld seam inwall, provide welding gun to be in the same position of weld seam outer wall, finish the welding of joint jointly, described roller rotates along with the rotation of steel pipe, and roller and welding gun remain at the correspondence position in the outside in the weld seam, are wound with high temperature resistant asbestos in the roller outer rim.
The present invention is compared with prior art: by the transfer roller is provided, and this roller is close to the inwall of weld seam, welding gun welds from the weld seam outer wall, and described roller is along with the rotation of workpiece is rotated.Roller and welding gun remain at the correspondence position in the outside in the weld seam, be wound with high temperature resistant asbestos in the roller outer rim, only need from the positive welding of weld seam, just can obtain the welding effect of complete penetration, can obviously improve welding efficiency, the outer field high temperature resistant asbestos of roller can stop the molten iron outflow, thus need not the higher ceramic substrate of use cost, thus reduced welding cost.
Description of drawings
The schematic diagram of Fig. 1 for using welding method of the present invention to weld.
Fig. 2 is the schematic diagram of roller in the welding method of the present invention and support.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand the following specific embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
See also Figure 1 and Figure 2, the schematic diagram that welds for welding method of the present invention.Use this welding method need prepare roller 40 as aid.Described roller 40 is installed on the cantilever shalving 50, and the end of this cantilever 50 has a pair of bearing support 51 that supports described roller 40, and the bottom of this bearing support 51 is provided with a pair of spring 511.The both sides of described roller 40 are provided with the bearing 41 that is installed in the support 51 and can roll on support 51 by bearing 41.The skin of described roller 40 is wound with high temperature resistant asbestos 42.
Please consult Figure 1 and Figure 2 again, when carrying out weld job, at first will need 10,20 butt joints of two steel pipes welding, and weld seam 30 to be welded such as have between two steel pipes 10,20.It is inboard and be close on the weld seam 30 roller 40 to be stretched into steel pipe 10,20 again.Spring 511 on the described support 51 can be given support 51 elastic forces and make support 51 drive roller 40 and can be close to the effect that plays sealing on the weld seam 30.Preparing welding gun 60 is positioned at the outside of weld seam 30 and begins welding.Welding gun 60 and 30 of weld seams form electric arc when the welding beginning, and the electric arc place just forms the molten bath moment under the effect of high arc temperature.Because the roller 40 that is provided has sealed the bottom of weld seam 30, the liquid metals in the molten bath can not run off; The same welding wire of supplying with continuously promptly turns liquid metal again into and makes it constantly to grow up and fill up whole welding line 30 under high temperature action.When workpiece was made hoop and rotated under the driving of welding roll (not shown), the roller 40 that is in weld seam 30 belows will transfer under the effect of frictional force; 60 maintenances of welding gun that are in weld seam 30 tops are motionless, make roller 40 and welding gun 60 remain at the correspondence position in the outside in the weld seam 30.
Along with the continuous continuation of welding process, under the acting in conjunction of welding gun 60 and described roller 40, a circumferential welded seam that connects two Guan Xin has just formed.This welding method only needs to weld in the outside of steel pipe 10,20 and can finish weld job, need not to carry out two-sided welding.Adopt the auxiliary ceramic substrate that substitutes of roller 40, both can reduce welding cost, can improve the efficient of weld job again.
Claims (2)
1. welding method, the circumferential welded seam that is used for the welded still pipe butt joint, it is characterized in that: provide the transfer roller to be close to the weld seam inwall, provide welding gun to be in the same position of weld seam outer wall, finish the welding of joint jointly, described roller rotates along with the rotation of steel pipe, and roller and welding gun remain at the correspondence position in the outside in the weld seam, are wound with high temperature resistant asbestos in the roller outer rim.
2. welding method as claimed in claim 1 is characterized in that: described roller is installed on the support, and the bottom of described support is provided with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010182247 CN101829838A (en) | 2010-05-25 | 2010-05-25 | Welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010182247 CN101829838A (en) | 2010-05-25 | 2010-05-25 | Welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101829838A true CN101829838A (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010182247 Pending CN101829838A (en) | 2010-05-25 | 2010-05-25 | Welding method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101829838A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284767A (en) * | 2011-07-21 | 2011-12-21 | 荆门宏图特种飞行器制造有限公司 | Crawler-type pad device for circumferential weld seam |
| CN103386562A (en) * | 2012-05-10 | 2013-11-13 | 五冶集团上海有限公司 | Pipeline protection and protective gas saving dual-purpose device for pipeline hole opening and welding |
| CN105358762A (en) * | 2013-07-05 | 2016-02-24 | 福伊特专利有限公司 | Drying roller and a method for the production of same |
| CN107030351A (en) * | 2017-06-16 | 2017-08-11 | 四川空分设备(集团)有限责任公司 | A kind of pipeline circumferential weld welding operator is filled with and pipeline welding equipment |
| CN112645133A (en) * | 2021-01-18 | 2021-04-13 | 北京博清科技有限公司 | Automatic pasting device and welding equipment |
| CN114918516A (en) * | 2022-06-13 | 2022-08-19 | 四川兴天元钢桥有限公司 | U rib single side welding double-side forming device |
| CN117900682A (en) * | 2024-03-19 | 2024-04-19 | 山西万家寨水控水利机电科技服务有限公司 | Electromechanical automatic welding system and use method thereof |
Citations (7)
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|---|---|---|---|---|
| US3979041A (en) * | 1974-07-13 | 1976-09-07 | Nippon Kokan Kabushiki Kaisha | Clamping mechanism for line-up of pipes |
| CN87105592A (en) * | 1986-07-30 | 1988-03-23 | 湘南机工株式会社 | Assemble the rotation circle of the first-class usefulness of welding machine and on this rotation circle, assembled the first-class automatic soldering device of welding machine |
| CN2033724U (en) * | 1988-05-12 | 1989-03-08 | 机械工业委员会哈尔滨焊接研究所 | Retrievable padding means for butt-welded pipes |
| CN1509219A (en) * | 2001-05-15 | 2004-06-30 | �����Զ�����ʽ���� | Hollow product, Method and device for making same, fluid transporting system using the same |
| CN200970669Y (en) * | 2006-11-16 | 2007-11-07 | 沧州龙马钢管制造有限公司 | Internal support wheel special for welding steel pipe |
| DE102007044570A1 (en) * | 2007-09-10 | 2009-03-12 | Terex-Demag Gmbh & Co. Kg | Method and device for longitudinal seam welding of crane boom profiles |
| CN201287246Y (en) * | 2008-09-25 | 2009-08-12 | 艾美特焊接自动化技术(北京)有限公司 | Fixture structure with inner-expansion air chamber |
-
2010
- 2010-05-25 CN CN 201010182247 patent/CN101829838A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3979041A (en) * | 1974-07-13 | 1976-09-07 | Nippon Kokan Kabushiki Kaisha | Clamping mechanism for line-up of pipes |
| CN87105592A (en) * | 1986-07-30 | 1988-03-23 | 湘南机工株式会社 | Assemble the rotation circle of the first-class usefulness of welding machine and on this rotation circle, assembled the first-class automatic soldering device of welding machine |
| CN2033724U (en) * | 1988-05-12 | 1989-03-08 | 机械工业委员会哈尔滨焊接研究所 | Retrievable padding means for butt-welded pipes |
| CN1509219A (en) * | 2001-05-15 | 2004-06-30 | �����Զ�����ʽ���� | Hollow product, Method and device for making same, fluid transporting system using the same |
| CN200970669Y (en) * | 2006-11-16 | 2007-11-07 | 沧州龙马钢管制造有限公司 | Internal support wheel special for welding steel pipe |
| DE102007044570A1 (en) * | 2007-09-10 | 2009-03-12 | Terex-Demag Gmbh & Co. Kg | Method and device for longitudinal seam welding of crane boom profiles |
| CN201287246Y (en) * | 2008-09-25 | 2009-08-12 | 艾美特焊接自动化技术(北京)有限公司 | Fixture structure with inner-expansion air chamber |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284767A (en) * | 2011-07-21 | 2011-12-21 | 荆门宏图特种飞行器制造有限公司 | Crawler-type pad device for circumferential weld seam |
| CN103386562A (en) * | 2012-05-10 | 2013-11-13 | 五冶集团上海有限公司 | Pipeline protection and protective gas saving dual-purpose device for pipeline hole opening and welding |
| CN105358762A (en) * | 2013-07-05 | 2016-02-24 | 福伊特专利有限公司 | Drying roller and a method for the production of same |
| US10066340B2 (en) | 2013-07-05 | 2018-09-04 | Voith Patent Gmbh | Drying roller and a method for the production of same |
| US10676866B2 (en) | 2013-07-05 | 2020-06-09 | Voith Patent Gmbh | Drying roller and a method for manufacturing the same |
| CN107030351A (en) * | 2017-06-16 | 2017-08-11 | 四川空分设备(集团)有限责任公司 | A kind of pipeline circumferential weld welding operator is filled with and pipeline welding equipment |
| CN112645133A (en) * | 2021-01-18 | 2021-04-13 | 北京博清科技有限公司 | Automatic pasting device and welding equipment |
| CN114918516A (en) * | 2022-06-13 | 2022-08-19 | 四川兴天元钢桥有限公司 | U rib single side welding double-side forming device |
| CN117900682A (en) * | 2024-03-19 | 2024-04-19 | 山西万家寨水控水利机电科技服务有限公司 | Electromechanical automatic welding system and use method thereof |
| CN117900682B (en) * | 2024-03-19 | 2024-06-04 | 山西万家寨水控水利机电科技服务有限公司 | Electromechanical automatic welding system and use method thereof |
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Open date: 20100915 |