CN105312728A - Device for eliminating influence of continuous high-intensity magnetic field on welding operation - Google Patents
Device for eliminating influence of continuous high-intensity magnetic field on welding operation Download PDFInfo
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- CN105312728A CN105312728A CN201410251554.9A CN201410251554A CN105312728A CN 105312728 A CN105312728 A CN 105312728A CN 201410251554 A CN201410251554 A CN 201410251554A CN 105312728 A CN105312728 A CN 105312728A
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Abstract
The invention relates to a device for eliminating an influence of a continuous high-intensity magnetic field on the welding operation. The device for eliminating the influence of the continuous high-intensity magnetic field on the welding operation comprises an upper electromagnetic induction device and a lower electromagnetic induction device. The upper and lower electromagnetic induction devices comprise an upper inverter welding machine and a lower inverter welding machine respectively. Positive poles of the upper and lower inverter welding machines are reliably grounded through upper and lower welding grounding wires respectively. Negative poles of the upper and lower inverter welding machines are connected with a plurality of turns of upper flexible induction coils and a plurality of turns of lower flexible induction coils wound around an upper magnetic component to be welded and a lower magnetic component to be welded. Upper electrode holders and lower electrode holders are used for welding upper and lower special demagnetization welding pieces. A groove portion is formed between the upper component to be welded and the lower component to be welded and provided with a gauss meter measuring pen connected with a gauss meter. The outer side of the groove portion is provided with a compass for measuring the direction of the magnetic induction strength and an electric welding machine wire. The electric welding machine wire is connected with an arc welding power source.
Description
Technical field
The present invention relates to a kind of be applicable to high in intensity, that the duration is long, duration ranges is wide magnetic field environment under carry out the device of welding operation, particularly a kind of for eliminating the device of continuation high-intensity magnetic field to welding operating influence.
Background technology
In some power consumptions and the larger enterprise of power consumption, in order to meet productive power at ordinary times, enterprise often builds power plant for self-supply, as electrolytic aluminium factory etc.When power plant being installed near the main equipment that electrolytic aluminium equipment or other peripheries easily produce strong magnetic field circumstance, significant negative impact can be brought to the welding operation of construction site, cause there is strong arc blow phenomenon during the high pressure weld bond welding be in magnetic field range, normal weld cannot be carried out, not only serious engineering constraint progress, and also can bring the integral solder quality of unit and have a strong impact on.The remanent magnetization produced in the links such as this kind of magnetic and pipeline processing, preparation, blanking has the difference of essence, from the judgement of the size of magnetic field intensity, magnetic direction and to eliminate the Method and process of magnetic all different, therefore conventional demagnetization method is not as under hammering method, heating, making shadow shield magnetic case etc. are all suitable for this kind of magnetic field environment.
Summary of the invention
In order to there is strong arc blow phenomenon when being in the high pressure weld bond welding in magnetic field range under solving high in intensity, that the duration is long, duration ranges is wide magnetic field environment in the present invention, normal weld cannot be carried out, not only serious engineering constraint progress, and also can bring problems such as having a strong impact on to the integral solder quality of unit, provide a kind of for eliminating the device of continuation high-intensity magnetic field to welding operating influence.
The present invention is achieved by the following technical solutions:
This is a kind of for eliminating the device of continuation high-intensity magnetic field to welding operating influence, comprises electromagnetic induction device and lower electromagnetic induction device, described upper electromagnetic induction device comprises inverter type welder, the positive pole of described upper inverter type welder carries out reliable ground by upper welding earth connection, negative pole is connected with the upper flexible induction coil of writhing number circle on the magnetic parts to be welded of band, the coil head of described flexible induction coil is connected with upper electrode holders, upper electrode holders are used for welding upper special demagnetization weldment, described lower electromagnetic induction device comprises lower inverter type welder, the positive pole of described lower inverter type welder carries out reliable ground by lower welding earth connection, negative pole is connected with the lower flexible induction coil of writhing number circle on the magnetic lower parts to be welded of band, the coil head of described lower flexible induction coil is connected with lower electrode holders, lower electrode holders are used for welding lower demagnetization weldment, be groove part between described parts to be welded and lower parts to be welded, groove part is provided with the gaussmeter measuring pen for measuring magnetic induction intensity connecting gaussmeter, be provided with the compass for measuring magnetic induction intensity direction and normal weld electric welding machine wire outside described groove part, described normal weld electric welding machine wire connects normal weld Arc Welding Power.
As optimization, the cross-sectional area of described flexible induction coil and lower flexible induction coil is 35-50mm
2.
As optimization, described normal weld Arc Welding Power is 2.
This device make use of the principle of direct current demagnetization, produces the secondary magnetic field contrary with external magnetic field, cancel out each other with original magnetic field at welded parts welded junction part.First be 35-50mm with cross-sectional area
2welding lead composition flexible induction coil complete galvanic composition loop, wire is wrapped in above two docking pipelines, according to external magnetic field strength size, is wound around the number of turn of the different number of turns; Electric current is adopted to be the welding transformer of 500 ~ 1000A; Two adopted inverter type welders are also furnished with remote control and regulating current device.
Principle formula is: H
1=(1.2 ~ 1.5) H
2, H in formula
1for erasing field intensity; H
2for remnant field intensity.
H=I*N/L, in formula, I represents coil electricity electric current A, and N represents the anti-magnetized coil number of turn, and L represents winding length m.Wherein erasing field intensity should be more than or equal to original external magnetic field.
The present invention is a kind of for eliminating the beneficial effect of continuation high-intensity magnetic field to the device of welding operating influence is:
This is a kind of can meet welding procedure needs under continuation strong magnetic field circumstance for eliminating the device of continuation high-intensity magnetic field to welding operating influence, local carries out offsetting or eliminating effect of magnetic influence, accomplish to make full use of that job site existing equipment, energy consumption are little, convenient operation, demagnetization speed is fast, erasure effect good, has good actual application value and promotional value.
Accompanying drawing explanation
Below in conjunction with accompanying drawing to this kind of for eliminate continuation high-intensity magnetic field to welding operating influence device be described further:
Fig. 1 is that this is a kind of for eliminating the structural representation of continuation high-intensity magnetic field to the device of welding operating influence.
In figure: 1 be upper inverter type welder, 2 be upper welding earth connection, 3 be lower inverter type welder, 4 be lower welding earth connection, 5 be upper parts to be welded, 6 be upper flexible induction coil, 7 be compass, 8 be lower flexible induction coil, 9 be lower parts to be welded, 10 be upper demagnetization weldment, 11 be upper electrode holders, 12 be lower demagnetization weldment, 13 be lower electrode holders, 14 be gaussmeter, 15 be gaussmeter measuring pen, 16 be Arc Welding Power, 17 for electric welding machine wire.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in more detail.
As shown in Figure 1, this is a kind of for eliminating the device of continuation high-intensity magnetic field to welding operating influence, comprises electromagnetic induction device and lower electromagnetic induction device, described upper electromagnetic induction device comprises inverter type welder 1, the positive pole of described upper inverter type welder 1 carries out reliable ground by upper welding earth connection 2, negative pole is connected with the upper flexible induction coil 6 of writhing number circle on the magnetic parts 5 to be welded of band, the coil head of described flexible induction coil 6 is connected with upper electrode holders 11, upper electrode holders 11 are for welding upper special demagnetization weldment 10, described lower electromagnetic induction device comprises lower inverter type welder 3, the positive pole of described lower inverter type welder 3 carries out reliable ground by lower welding earth connection 4, negative pole is connected with the lower flexible induction coil 8 of writhing number circle on the magnetic lower parts 9 to be welded of band, the coil head of described lower flexible induction coil 8 is connected with lower electrode holders 13, lower electrode holders 13 are for welding lower demagnetization weldment 12, be groove part between described parts 5 to be welded and lower parts to be welded 9, groove part is provided with the gaussmeter measuring pen 15 for measuring magnetic induction intensity connecting gaussmeter 14, described gaussmeter 14 is for assessment of the magnetic induction intensity value in pulsating field and leakage field magnetic field in magnetic system the air gap, be provided with the compass 7 for measuring magnetic induction intensity direction and normal weld electric welding machine wire 17 outside described groove part, described normal weld electric welding machine wire 17 connects normal weld Arc Welding Power 16, the cross-sectional area of described flexible induction coil 6 is 40mm
2, the cross-sectional area of described lower flexible induction coil 6 is 50mm
2, described normal weld Arc Welding Power 16 is 2.
This is a kind of as follows for eliminating the concrete using method of continuation high-intensity magnetic field to the device of welding operating influence:
First gaussmeter 14 and compass 7 is used to determine size and the direction in upper parts to be welded 5 and lower parts to be welded 9 welded junction part magnetic field.
Secondly, according to the size and Orientation of the external magnetic field that gaussmeter 14 and compass 7 are measured, by upper flexible induction coil 6 writhing number circle on parts 5 to be welded band is magnetic in the other direction, lower flexible induction coil 8 is writhing number circle on the magnetic lower parts 9 to be welded of band in the other direction, the coil head of upper flexible induction coil 6 is connected with upper electrode holders 11, upper electrode holders 11 weld upper special demagnetization weldment 10, the coil head of lower flexible induction coil 8 is connected with lower electrode holders 13, lower electrode holders 13 weld lower special demagnetization weldment 12, by adjusting the output current size of upper inverter type welder 1 and lower inverter type welder 3, the applied field strengths size that adjustment magnetic induction coil produces.Wherein, the size of magnetic induction intensity and direction are measured respectively by gaussmeter 14 and compass 7 and are determined.When the groove position magnetic induction intensity value of upper parts 5 to be welded and lower parts to be welded 9 is lower than preset range, appliance normal weld electric welding machine wire 17 and normal weld Arc Welding Power 16 just can be made to carry out normal welding.
Wherein, the upper inverter type welder 1 that selection power output is identical and lower inverter type welder 3, and guarantee to place firmly.
In addition, in degaussing process, periodically must check the result (just must measure when power supply is connected) of erasing field effect with gaussmeter 14 around upper parts 5 to be welded and lower parts to be welded 9.When measure remanent magnetism grade be less than 20 × 10-4T(be generally less than equal 5MT) time, the welding of weld bond should be completed in time.But must ensure that two demagnetization welding operation personnel will play arc welding before treating the welding of demagnetization weldment, also must stop postwelding in normal weld blow-out simultaneously and demagnetization can be stopped to weld, to guarantee the stability that secondary magnetic field exists.
In addition, must, after whole weld bond all welds, could remove a kind of for eliminating the device of continuation high-intensity magnetic field to welding operating influence.If weld bond exists weld defect when needing to mend by replacing a damaged part, the process eliminating external magnetic field during repair welding is equal to above-mentioned with principle.
Above-mentioned detailed description of the invention is only concrete case of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent implementations of equivalent variations.But every do not depart from the prerequisite of the technology of the present invention principle under, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, all should fall into scope of patent protection of the present invention.
Claims (3)
1., for eliminating the device of continuation high-intensity magnetic field to welding operating influence, it is characterized in that: comprise electromagnetic induction device and lower electromagnetic induction device, described upper electromagnetic induction device comprises inverter type welder (1), the positive pole of described upper inverter type welder (1) carries out reliable ground by upper welding earth connection (2), negative pole is connected with the upper flexible induction coil (6) of the upper writhing number circle of the magnetic parts to be welded (5) of band, the coil head of described flexible induction coil (6) is connected with upper electrode holders (11), upper electrode holders (11) are for welding upper special demagnetization weldment (10), described lower electromagnetic induction device comprises lower inverter type welder (3), the positive pole of described lower inverter type welder (3) carries out reliable ground by lower welding earth connection (4), negative pole is connected with the lower flexible induction coil (8) of the upper writhing number circle of the magnetic lower parts to be welded (9) of band, the coil head of described lower flexible induction coil (8) is connected with lower electrode holders (13), lower electrode holders (13) are for welding lower demagnetization weldment (12), be groove part between described parts to be welded (5) and lower parts to be welded (9), groove part is provided with the gaussmeter measuring pen (15) for measuring magnetic induction intensity connecting gaussmeter (14), be provided with the compass (7) for measuring magnetic induction intensity direction and normal weld electric welding machine wire (17) outside described groove part, described normal weld electric welding machine wire (17) connects normal weld Arc Welding Power (16).
2. a kind of for eliminating the device of continuation high-intensity magnetic field to welding operating influence as claimed in claim 1, it is characterized in that: the cross-sectional area of described flexible induction coil (6) and lower flexible induction coil (8) is 35-50mm
2.
3. a kind of for eliminating the device of continuation high-intensity magnetic field to welding operating influence as claimed in claim 2, it is characterized in that: described normal weld Arc Welding Power (16) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410251554.9A CN105312728A (en) | 2014-06-09 | 2014-06-09 | Device for eliminating influence of continuous high-intensity magnetic field on welding operation |
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| CN201410251554.9A CN105312728A (en) | 2014-06-09 | 2014-06-09 | Device for eliminating influence of continuous high-intensity magnetic field on welding operation |
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| CN105312728A true CN105312728A (en) | 2016-02-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422064A (en) * | 2018-03-23 | 2018-08-21 | 上海拓直汽车科技有限公司 | A kind of offshore drilling platform spud leg rack welding method |
| CN109530876A (en) * | 2018-12-27 | 2019-03-29 | 渤海造船厂集团有限公司 | A kind of low-alloy high-tensile structural steel arc blow removing method |
| CN109633492A (en) * | 2018-12-14 | 2019-04-16 | 江阴兴澄特种钢铁有限公司 | A method of examine steel plate to weld arc blow sensitivity magnetic induction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5345058A (en) * | 1992-08-05 | 1994-09-06 | Newport News Shipbuilding And Dry Dock Company | Magnetic field negating system for weldments |
| CN2899051Y (en) * | 2006-05-18 | 2007-05-09 | 中国石油天然气股份有限公司 | Local demagnetizer with magnetic long transfer pipeline |
| CN101148009A (en) * | 2007-06-15 | 2008-03-26 | 中国铝业股份有限公司 | Method for welding metal under strong magnetic field circumstance |
| CN202344113U (en) * | 2011-11-17 | 2012-07-25 | 山东华源锅炉有限公司 | Device for local demagnetization |
| CN203918177U (en) * | 2014-06-09 | 2014-11-05 | 山东电力建设第一工程公司 | A kind of for eliminating the device of continuation high-intensity magnetic field to welding operating influence |
-
2014
- 2014-06-09 CN CN201410251554.9A patent/CN105312728A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5345058A (en) * | 1992-08-05 | 1994-09-06 | Newport News Shipbuilding And Dry Dock Company | Magnetic field negating system for weldments |
| CN2899051Y (en) * | 2006-05-18 | 2007-05-09 | 中国石油天然气股份有限公司 | Local demagnetizer with magnetic long transfer pipeline |
| CN101148009A (en) * | 2007-06-15 | 2008-03-26 | 中国铝业股份有限公司 | Method for welding metal under strong magnetic field circumstance |
| CN202344113U (en) * | 2011-11-17 | 2012-07-25 | 山东华源锅炉有限公司 | Device for local demagnetization |
| CN203918177U (en) * | 2014-06-09 | 2014-11-05 | 山东电力建设第一工程公司 | A kind of for eliminating the device of continuation high-intensity magnetic field to welding operating influence |
Non-Patent Citations (2)
| Title |
|---|
| 王云峰: ""强磁性管道现场焊接消磁技术"", 《石油化工建设》 * |
| 许贵芝: ""俄罗斯管道焊接前的现代消磁方法"", 《焊管》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422064A (en) * | 2018-03-23 | 2018-08-21 | 上海拓直汽车科技有限公司 | A kind of offshore drilling platform spud leg rack welding method |
| CN109633492A (en) * | 2018-12-14 | 2019-04-16 | 江阴兴澄特种钢铁有限公司 | A method of examine steel plate to weld arc blow sensitivity magnetic induction |
| CN109633492B (en) * | 2018-12-14 | 2020-09-25 | 江阴兴澄特种钢铁有限公司 | Method for detecting welding magnetic blow sensitive magnetic induction strength of steel plate |
| CN109530876A (en) * | 2018-12-27 | 2019-03-29 | 渤海造船厂集团有限公司 | A kind of low-alloy high-tensile structural steel arc blow removing method |
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Application publication date: 20160210 |