CN202344113U - Device for local demagnetization - Google Patents
Device for local demagnetization Download PDFInfo
- Publication number
- CN202344113U CN202344113U CN2011204553570U CN201120455357U CN202344113U CN 202344113 U CN202344113 U CN 202344113U CN 2011204553570 U CN2011204553570 U CN 2011204553570U CN 201120455357 U CN201120455357 U CN 201120455357U CN 202344113 U CN202344113 U CN 202344113U
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- coil
- demagnetization
- electrode
- local demagnetization
- cable
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- Arc Welding In General (AREA)
Abstract
The utility model discloses a device for local demagnetization, and belongs to a metallurgical industry. According to the device for local demagnetization, the defects that the existing demagnetization technology is not simple and not easy to operate and is low in efficiency for large work pieces in prior technology are overcome. The device for local demagnetization mainly comprises a direct current (DC) arc welding machine, an electrode welding clamp and a steel plate, wherein one electrode of the DC arc welding machine is connected with the steel plate through an electrode welding clamp cable C, the device for local demagnetization is provided with a coil, one end of the coil is connected with the electrode welding clamp through an electrode welding clamp cable A,the other end of the coil is connected with the other electrode of the DC arc welding machine through an electrode welding clamp cable B; the rated power of the DC arc welding machine is above 400 amperes; joints are arranged between the coil and the electrode welding clamp A and between the coil and the electrode welding clamp cable B respectively. The device for local demagnetization is mainly used in the metallurgical processing.
Description
Technical field
The utility model belongs to metallurgy industry, specifically, relates in particular to a kind of local demagnetization equipment.
Background technology
Because cold group or use ferromagnetism magnet sucker to cause steel pipe band magnetic, slight band magnetic does not influence welding to steel pipe, arranges if will be welded into bamboo raft shape pipe with the steel pipe of magnetic in manufacture process; Magnetic can be strengthened; Concentrate on angle of pipe row, magnetic can be stronger during two pipe row butt joints, and electric arc is uncontrollable during welding; Molten iron is siphoned away can't fuse, so pipe row must demagnetization.
At present; There is not concrete demagnetization process for the large tracts of land workpiece; According to the demagnetization principle following several kinds of demagnetization methods are arranged: first kind: adopt integral heat-processing method; Carry out demagnetization more than workpiece is heated to curie point (steel are 700 ℃), but adopt the method need use big heat-treatment furnace, expense height and workpiece are yielding.Second kind: carry out demagnetization with demagnetizer, but because the workpiece area is bigger, receive the big demagnetization difficulty of earth magnetic effect, large-scale demagnetizer is uncommon, and costs an arm and a leg.The third: strengthen magnetic in workpiece end, this method effect is bad and efficient is low.
The utility model content
The large tracts of land workpiece does not have the Deperming Facility simple, that efficient is high or the defective of method in the prior art in order to solve, and the utility model provides a kind of local demagnetization equipment.
The utility model is realized through following technical scheme:
A kind of local demagnetization equipment; Comprise DC arc welder, electrode holders, steel plate; One utmost point of DC arc welder is connected through soldering turret cable C with steel plate; Local demagnetization's equipment is provided with coil, and an end of coil is connected with electrode holders through soldering turret cable A, and the other end of coil is connected with another utmost point of DC arc welder through soldering turret cable B.
The specified worker of said DC arc welder leads to more than the 400A.
Be respectively equipped with joint between coil and soldering turret cable A, the soldering turret cable B.
Compared with prior art, the beneficial effect of the utility model is: easy for installation, simple, carefully connecting the wire gets final product, and simple, flexible operation, production cost is lower, and more is applicable to the field Welding demagnetization.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the user mode reference diagram of the utility model.
Steel plate in the drawings, 1; 2, welding rod; 3, electrode holders; 4, soldering turret cable A; 5, joint; 6, coil; 7, soldering turret cable B; 8, DC arc welder; 9, soldering turret cable C; 10, workpiece.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
A kind of local demagnetization equipment; Comprise DC arc welder 8, electrode holders 3, steel plate 1; One utmost point of DC arc welder 8 is connected through soldering turret cable C9 with steel plate 1; Local demagnetization's equipment is provided with coil 6, and an end of coil 6 is connected with electrode holders 3 through soldering turret cable A4, and the other end of coil 6 is connected with another utmost point of DC arc welder 8 through soldering turret cable B7; The specified worker of said DC arc welder 8 leads to more than the 400A; Be respectively equipped with joint 5 between coil 6 and soldering turret cable A4, the soldering turret cable B7.
The utility model twines several circles with coil 6 in the magnetic part position of workpiece 10 when mounted; Welding rod 2 is installed on the electrode holders 3, and welding rod 2 diameters are φ 5.During work, be divided into following steps:
A, the electric current of DC arc welder 8 is adjusted to maximum, electrode holders 3 clamping welding rods 2 and steel plate 1 short circuits, and stably the electric current of DC arc welder 8 is transferred to minimum short circuit the time, electric current was opened welding rod 2 and steel plate in 1 minute rapidly after being transferred to minimum.
B, this moment are checked magnetic field, if field weakening and weaken inadequately then continues step a, up to field weakening till satisfied; If magnetic field is strengthened, the soldering turret cable on DC arc welder 8 the two poles of the earth is exchanged, continue step a, till field weakening arrives satisfaction.
Claims (3)
1. local demagnetization's equipment; Comprise DC arc welder (8), electrode holders (3), steel plate (1); One utmost point of DC arc welder (8) is connected through soldering turret cable C (9) with steel plate (1); It is characterized in that: be provided with coil (6), an end of coil (6) is connected with electrode holders (3) through soldering turret cable A (4), and the other end of coil (6) is connected with another utmost point of DC arc welder (8) through soldering turret cable B (7).
2. local demagnetization according to claim 1 equipment is characterized in that: the specified worker of said DC arc welder (8) leads to more than the 400A.
3. local demagnetization according to claim 1 and 2 equipment is characterized in that: be respectively equipped with joint (5) between coil (6) and soldering turret cable A (4), the soldering turret cable B (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204553570U CN202344113U (en) | 2011-11-17 | 2011-11-17 | Device for local demagnetization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204553570U CN202344113U (en) | 2011-11-17 | 2011-11-17 | Device for local demagnetization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202344113U true CN202344113U (en) | 2012-07-25 |
Family
ID=46533143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204553570U Expired - Fee Related CN202344113U (en) | 2011-11-17 | 2011-11-17 | Device for local demagnetization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202344113U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312728A (en) * | 2014-06-09 | 2016-02-10 | 山东电力建设第一工程公司 | Device for eliminating influence of continuous high-intensity magnetic field on welding operation |
| EP2974820B1 (en) | 2014-07-17 | 2017-04-12 | Ewm Ag | Arc welding device, system and method for de-magnetising a metal pipe |
| CN104117763B (en) * | 2013-04-24 | 2017-06-09 | 天津炼达集团有限公司 | Pipeline remanent magnetism belt degaussing gear |
| 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 |
| CN111341521A (en) * | 2020-04-01 | 2020-06-26 | 西安石油大学 | Coil structure for eliminating residual magnetism of ferromagnetic pipeline on line and application thereof |
-
2011
- 2011-11-17 CN CN2011204553570U patent/CN202344113U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117763B (en) * | 2013-04-24 | 2017-06-09 | 天津炼达集团有限公司 | Pipeline remanent magnetism belt degaussing gear |
| CN105312728A (en) * | 2014-06-09 | 2016-02-10 | 山东电力建设第一工程公司 | Device for eliminating influence of continuous high-intensity magnetic field on welding operation |
| EP2974820B1 (en) | 2014-07-17 | 2017-04-12 | Ewm Ag | Arc welding device, system and method for de-magnetising a metal pipe |
| 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 |
| CN111341521A (en) * | 2020-04-01 | 2020-06-26 | 西安石油大学 | Coil structure for eliminating residual magnetism of ferromagnetic pipeline on line and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141117 |
|
| EXPY | Termination of patent right or utility model |