CN204625714U - The online post annealing device of a kind of dynamic local - Google Patents
The online post annealing device of a kind of dynamic local Download PDFInfo
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- CN204625714U CN204625714U CN201520237298.8U CN201520237298U CN204625714U CN 204625714 U CN204625714 U CN 204625714U CN 201520237298 U CN201520237298 U CN 201520237298U CN 204625714 U CN204625714 U CN 204625714U
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- 238000000137 annealing Methods 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 230000002929 anti-fatigue Effects 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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Abstract
The utility model discloses the online post annealing device of a kind of dynamic local, comprise magnetic conductive tube, partial preheating manages, a load coil, No. two load coils, planar inductor, pusher, heating system power supply and Controlling System, described magnetic conductive tube docks with partial preheating pipe and arranges, described magnetic conductive tube and local preheating tube are wound with a load coil and No. two load coils respectively, a described load coil, No. two load coils connect heating system power supply respectively, described heating system power supply is connected with Controlling System respectively with planar inductor, described planar inductor is arranged on magnetic conductive tube.Avoid expanding with heat and contract with cold because local heating produces, the weld intensity brought and anti-fatigue ability decline.
Description
Technical field
The utility model relates to welding technology field, particularly relates to the online post annealing technology of dynamic local.
Background technology
Along with the development of national economy, the particularly enforcement of development of the West Regions and West-East National Gas Transmission Project, the demand of heavy caliber high-frequency induction straight seam welded steel pipe is increasing, weld seam annealing Application Areas is also progressively being widened, and the weld seam annealing technology as one of large-diameter steel pipe deep processing is more and more subject to common concern.Adopt the method for weld seam annealing, the thin-wall steel tube of high strength can be produced.
When welding, a kind of invisible strength can be produced at welded seam area.Machinery term is referred to as " welding stress ".When welding, the local temperature of welding is very high, and the local temperature of not welding is exactly low comparatively speaking, due to the reason of expanding with heat and contract with cold, will produce stress in inside, the appearance of stress will make weld intensity and anti-fatigue ability decline, and cannot reach design requirements.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of dynamic local online post annealing device, can avoid expanding with heat and contract with cold because local heating produces, and the weld intensity brought and anti-fatigue ability decline.
Technical scheme: for achieving the above object, the technical solution of the utility model is as follows:
The online post annealing device of a kind of dynamic local, comprise magnetic conductive tube, partial preheating manages, a load coil, No. two load coils, planar inductor, pusher, heating system power supply and Controlling System, described magnetic conductive tube docks with partial preheating pipe and arranges, described magnetic conductive tube and local preheating tube are wound with a load coil and No. two load coils respectively, a described load coil, No. two load coils connect heating system power supply respectively, described heating system power supply is connected with Controlling System respectively with planar inductor, described planar inductor is arranged on magnetic conductive tube, steel pipe completes post annealing through pusher turnover magnetic conductive tube.
Further, described partial preheating pipe is two, is docked at the head and the tail two ends of magnetic conductive tube respectively.
Further, the length of described magnetic conductive tube is 4-6 times of weld width.
Further, the winding density of a described load coil is greater than the winding density of No. two load coils.
Beneficial effect: 1, the utility model can effectively be avoided expanding with heat and contract with cold because local heating produces, and the weld intensity brought and anti-fatigue ability decline.
2, accurate local heating realizes welding portion and is heated to more than critical temperature, and avoid the entirety heating of steel pipe, the high-power annealing heating device that prepare, energy consumption significantly reduces.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, the online post annealing device of a kind of dynamic local, comprise magnetic conductive tube 1, partial preheating's pipe 2, a load coil 3, No. two load coils 31, planar inductor 4, pusher 5, heating system power supply 6 and Controlling System 7, described magnetic conductive tube 1 docks with partial preheating pipe 2 and arranges, described magnetic conductive tube 1 and local preheating tube 2 are wound with a load coil 3 and No. two load coils 31 respectively, a described load coil 3, No. two load coils 31 connect heating system power supply 6 respectively, described heating system power supply 6 is connected with Controlling System 7 respectively with planar inductor 4, described planar inductor 4 is arranged on magnetic conductive tube 1, steel pipe passes in and out magnetic conductive tube 1 through pusher 5 and completes post annealing.
The present invention is designed specifically to: described partial preheating pipe 2 is two, is docked at the head and the tail two ends of magnetic conductive tube 1 respectively, meets the preheating of weld seam periphery.And the length meeting described magnetic conductive tube 1 is 4-6 times of weld width, and heating heat can concentrate on this region.Meet, the winding density of a described load coil 3 is greater than the winding density of No. two load coils 31, so the heating intensity of magnetic conductive tube 1 is greater than the heating intensity of partial preheating's pipe 2 simultaneously.The coil winding density of described No. two induction heating circles 31, by near magnetic conductive tube 1 one end to the other end away from magnetic conductive tube 1 by close to thin, near the place of magnetic conductive tube 1, preheating temperature more levels off to the Heating temperature of magnetic conductive tube 1.
Partial preheating's pipe 2 in the utility model is also provided with pre-thermal sensor 8, and pre-thermal sensor 8 is connected with Controlling System 7 equally.The temperature sensor sensitivity of described planar inductor 4 is greater than pre-thermal sensor 8.
During use, just will weld and be transported in magnetic conductive tube 1 with the steel pipe of quenching by pusher 5, by No. two load coils 31 by the neighboring area preheating beyond steel pipe seam, preheating is complete, by a load coil 3, weld seam is heated to more than its critical temperature, realizes weld seam annealing and prevent weld seam potential crack.The planar inductor 4 that magnetic conductive tube 1 body is arranged responds to the temperature of steel pipe, when after arrival final annealing temperature, makes heating system power supply 6 close heating and the warm operation of a load coil 3, No. two load coils 31 by Controlling System 7.The steel pipe of annealing is transported by the pusher 5 in magnetic conductive tube 1 exit, completes the annealing process of whole online local.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. the online post annealing device of dynamic local, it is characterized in that: comprise magnetic conductive tube (1), partial preheating's pipe (2), a load coil (3), No. two load coils (31), planar inductor (4), pusher (5), heating system power supply (6) and Controlling System (7), described magnetic conductive tube (1) is managed (2) and is docked and arrange with partial preheating, described magnetic conductive tube (1) and local preheating tube (2) are wound with a load coil (3) and No. two load coils (31) respectively, a described load coil (3), No. two load coils (31) connect heating system power supply (6) respectively, described heating system power supply (6) is connected with Controlling System (7) respectively with planar inductor (4), described planar inductor (4) is arranged on magnetic conductive tube (1),
Steel pipe completes post annealing through pusher (5) turnover magnetic conductive tube (1).
2. the online post annealing device of a kind of dynamic local according to claim 1, is characterized in that: described partial preheating's pipe (2) is two, is docked at the head and the tail two ends of magnetic conductive tube (1) respectively.
3. the online post annealing device of a kind of dynamic local according to claim 2, is characterized in that: the length of described magnetic conductive tube (1) be the 4-6 of weld width doubly.
4. the online post annealing device of a kind of dynamic local according to claim 1, is characterized in that: the coil winding density of a described load coil (3) is greater than the coil winding density of No. two load coils (31).
5. the online post annealing device of a kind of dynamic local according to claim 1, it is characterized in that: the coil winding density of described No. two induction heating circles (31), by near magnetic conductive tube (1) one end to the other end away from magnetic conductive tube (1) by close to thin.
6. the online post annealing device of a kind of dynamic local according to claim 1, it is characterized in that: described partial preheating's pipe (2) is also provided with pre-thermal sensor (8), pre-thermal sensor (8) is connected with Controlling System (7) equally, and the temperature sensor sensitivity of described planar inductor (4) is greater than pre-thermal sensor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237298.8U CN204625714U (en) | 2015-04-16 | 2015-04-16 | The online post annealing device of a kind of dynamic local |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237298.8U CN204625714U (en) | 2015-04-16 | 2015-04-16 | The online post annealing device of a kind of dynamic local |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204625714U true CN204625714U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520237298.8U Active CN204625714U (en) | 2015-04-16 | 2015-04-16 | The online post annealing device of a kind of dynamic local |
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| Country | Link |
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| CN (1) | CN204625714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754113A (en) * | 2018-06-15 | 2018-11-06 | 中国电建集团山东电力建设第工程有限公司 | A kind of local heat dissipation type pipe group weld seam heat treatment process of whole heating |
-
2015
- 2015-04-16 CN CN201520237298.8U patent/CN204625714U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754113A (en) * | 2018-06-15 | 2018-11-06 | 中国电建集团山东电力建设第工程有限公司 | A kind of local heat dissipation type pipe group weld seam heat treatment process of whole heating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 1-8 Zhangxing Road, Yanqiao Street, Huishan District, Wuxi City, Jiangsu Province, 214000 Patentee after: Jiangsu Chengzhong Intelligent Manufacturing Co.,Ltd. Country or region after: China Address before: 214000 Zhangxing Road, Yanqiao supporting area, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: JIANGSU CHENGZHONGHE HIGH PRECISION STEEL PIPES MAKING Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |