CN2288184Y - Medium-frequency induction heater for changed section steel rail - Google Patents
Medium-frequency induction heater for changed section steel rail Download PDFInfo
- Publication number
- CN2288184Y CN2288184Y CN96224168U CN96224168U CN2288184Y CN 2288184 Y CN2288184 Y CN 2288184Y CN 96224168 U CN96224168 U CN 96224168U CN 96224168 U CN96224168 U CN 96224168U CN 2288184 Y CN2288184 Y CN 2288184Y
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- Prior art keywords
- coil
- coils
- frequency induction
- induction heating
- heating device
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- Expired - Lifetime
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- 230000006698 induction Effects 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 title abstract 4
- 239000010959 steel Substances 0.000 title abstract 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000005288 electromagnetic effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- General Induction Heating (AREA)
Abstract
The utility model belongs to the field of technology and equipment for metallothermic processing, disclosing a medium-frequency induction heater for steel rails with a variable section. The utility model is a combined induction heater which is composed of two sets of coils of different shapes and a magnetic conductor; the two sets of coils are respectively arranged in the shape of a semi-saddle and in the shape of a saddle at the top part and on both sides of a steel rail, and each set of coils form a magnetic loop respectively. The utility model can automatically regulate the magnitude of current in each coil and the current density in each part by using electromagnetic effects, so that the effective and uniform local heating of steel rails with a variable section can be realized. Accordingly, the stability of technological operation and product performance can be guaranteed, and the electric consumption can be decreased.
Description
The utility model belongs to the used for metal thermal treatment equipment technical field, relates in particular to a kind of section rail intermediate frequency induction heating device that is used to become.
Along with the develop rapidly of transportation by railroad cause, for adapt to heavy duty, at a high speed, the needs of high-density, large conveying quantity, rail is proposed requirements at the higher level.Therefore, both at home and abroad the rail heat treatment technics is developed, produced and have high-intensity high-quality rail, with the needs of full transportation by railroad, simultaneously, the change section rail within the tongue that railway switch is used has also proposed high tough performance requriements.
In the prior art, the flat 3-41528 of Japan's special permission communique discloses the intermediate frequency induction heating device of two kinds of forms.There is following shortcoming in this device: after the rail head width that becomes the section rail reduces, because the gap of its rail head both sides and induction heating device corresponding part is strengthened, cause that the magnetic resistance of magnetoresistive effect increases the leakage field increasing, cause effective electric power to reduce, Heating temperature reduces, and zone of heating shoals.In order to reach the product performance requirement, must constantly regulate processing parameter, certainly will increase the complexity of technological operation.Simultaneously, also there is above-mentioned shortcoming in domestic existing intermediate frequency induction heating device.
The electric current that the purpose of this utility model is a kind of coil is provided is realized effectively and the local heating of homogeneous along with the tapered variation of rail is regulated automatically, and can be reduced the built-up type intermediate frequency induction heating device of power consumption.
For achieving the above object, a kind of novel intermediate frequency (1000～8000Hz) induction heating devicees have been designed.The built-up type induction heating device that it is made up of two difform coils of cover and magnetizer, wherein, one cover coil is formed by the coils from parallel connection of coils that two groups of symmetric arrangement are half saddle type, another set of coil is formed by the coils from parallel connection of coils that two groups of symmetric arrangement are saddle type, two cover coils are half saddle type respectively and are top and the both sides that saddle type is arranged in rail, each forms magnetic loop respectively around organizing coil, the mode of connection of each coil, make adjacent and current opposite in direction not contacted two groups of coils, so that the magnetic line of force of its generation is strengthened mutually.
The quantity of every group of coil can be respectively 1～4, preferably adopts two or single; The number of turn of each coil is respectively 1～4 circle, preferably adopts two circles or single turn.
Coil is made by the copper pipe of hollow, and its section is square or rectangle.Pass to heat-eliminating medium in the coil, do not burnt out with the protection coil.Each coil preferably is embedded in the groove of magnetizer.Magnetizer is that soft magnetic materials is made.
Adopt said structure, utilize electromagnetic induction effect, can carry out automatic guide each electric current of organizing coil.Therefore, the size of current in each coil and the electric current distribution of each several part can be regulated automatically with the variation of rail profile and corresponding magnetic resistance thereof, realize local heating effective, homogeneous, and then guarantee the stable of technological operation and product performance and can reduce power consumption.
The utility model also has compact construction, makes simple, easy to connect and heating efficiency advantages of higher.
The utility model can be heated to 800～1050 ℃ with the rate of heating of 5～80 ℃/s with rail head of rail.
The utility model can also be used for other continuous heating that becomes the section workpiece.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the intermediate frequency induction heating device constitutional diagram
Fig. 2 is that rail head width narrower part is in the situation in the intermediate frequency induction heating device
Fig. 3 is the cross-sectional view of Fig. 2
Fig. 4 is that the rail head wider width partly is in the situation in the intermediate frequency induction heating device
Fig. 5 is the cross-sectional view of Fig. 4
As shown in Figure 1, become section rail intermediate frequency induction heating device, the built-up type induction heating device that it is made up of two difform coils 2,3 of cover and magnetizer 6,9, wherein, one cover coil 2 is formed by the coils from parallel connection of coils that two groups of symmetric arrangement are half saddle type, and every group of coil 2 that is half saddle type promptly is in rail top section 4 by two portions of coil and rail sidepiece part 5 is formed; Another set of coil 3 is formed by the coils from parallel connection of coils that two groups of symmetric arrangement are saddle type, every group of coil 3 that is saddle type promptly is in rail top section 7 and is in rail sidepiece part 8 by two portions of coil to be formed, two cover coils 2,3 are half saddle type respectively and are top (4,7) and both sides (5,8) that saddle type is arranged in rail, as Fig. 2 and shown in Figure 4.Behind the coil electricity, form magnetic loop respectively around each group coil, its magnetic line of force distributes shown in fine rule among Fig. 3 and Fig. 5.The mode of connection of each coil will make adjacent and current opposite in direction not contacted two groups of coils, so that the magnetic line of force of its generation is strengthened mutually.Each coil is embedded in respectively in the groove of magnetizer 6,9.Coil 2,3 is formed by 2 two circle coils from parallel connection of coils.
By the two built-up type heating units formed of cover coils 2,3, both can adapt to the effective local heating of rail head width when narrower, also can adapt to effective local heating of rail head wider width.As can be seen from Figure 3, particularly when heating unit is in rail head width narrower region, because the gap of coil and rail head one side is strengthened, its magnetic resistance is increased, cause electric current distribution to change, electric current mainly from passing through with the corresponding coil of rail head opposite side, helps the concentration of local heating of rail head, and can reduce leakage field, improve thermo-efficiency and reduce power consumption.
Claims (3)
1, a kind of change section rail intermediate frequency induction heating device, it is characterized in that it is by the difform coil (2 of two covers, 3) and magnetizer (6,9) the built-up type induction heating device of Zu Chenging, wherein, one cover coil (2) is formed by the coils from parallel connection of coils that two groups of symmetric arrangement are half saddle type, another set of coil (3) is formed by the coils from parallel connection of coils that two groups of symmetric arrangement are saddle type, two cover coils (2,3) be half saddle type respectively and be top and the both sides that saddle type is arranged in rail, around each group coil, form magnetic loop respectively, the mode of connection of each coil, make adjacent and current opposite in direction not contacted two groups of coils, so that the magnetic line of force of its generation is strengthened mutually.
2, change section rail intermediate frequency induction heating device according to claim 1 is characterized in that the quantity of every group of coil is respectively 1～4, and the number of turn of each coil is respectively 1～4 circle.
3, change section rail intermediate frequency induction heating device according to claim 1 is characterized in that coil makes by the copper pipe of hollow, and coil preferably is embedded in the groove of magnetizer (6,9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96224168U CN2288184Y (en) | 1996-12-06 | 1996-12-06 | Medium-frequency induction heater for changed section steel rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96224168U CN2288184Y (en) | 1996-12-06 | 1996-12-06 | Medium-frequency induction heater for changed section steel rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2288184Y true CN2288184Y (en) | 1998-08-19 |
Family
ID=33903221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96224168U Expired - Lifetime CN2288184Y (en) | 1996-12-06 | 1996-12-06 | Medium-frequency induction heater for changed section steel rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2288184Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956346A (en) * | 2010-03-26 | 2011-01-26 | 孟祥厚 | Induction heating device used for rail heat treatment |
| CN102296501A (en) * | 2011-06-16 | 2011-12-28 | 中国农业大学 | Seamless track rail temperature locking preprocessing system |
| CN102465478A (en) * | 2010-11-18 | 2012-05-23 | 青岛四机易捷铁路装备有限公司 | Railway turnout electromagnetic heating snow melting device and manufacturing method thereof |
| CN103789517A (en) * | 2012-10-26 | 2014-05-14 | 上海汇众汽车制造有限公司 | Induction hardening method and induction apparatus for high strength steel special shape rear axle cross beam |
| CN104513883A (en) * | 2013-10-07 | 2015-04-15 | 本田技研工业株式会社 | Thermal treatment device for external connector part and manufacture method for external connector part |
| CN104762447A (en) * | 2009-07-30 | 2015-07-08 | 高周波热练株式会社 | Induction hardening apparatus, induction hardening method, induction heating coil, heat treatment apparatus, and heat treatment method |
| CN106282502A (en) * | 2016-08-31 | 2017-01-04 | 浙江建鑫型钢科技有限公司 | The processing technique of miniature guide rail |
-
1996
- 1996-12-06 CN CN96224168U patent/CN2288184Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762447A (en) * | 2009-07-30 | 2015-07-08 | 高周波热练株式会社 | Induction hardening apparatus, induction hardening method, induction heating coil, heat treatment apparatus, and heat treatment method |
| CN101956346A (en) * | 2010-03-26 | 2011-01-26 | 孟祥厚 | Induction heating device used for rail heat treatment |
| CN102465478A (en) * | 2010-11-18 | 2012-05-23 | 青岛四机易捷铁路装备有限公司 | Railway turnout electromagnetic heating snow melting device and manufacturing method thereof |
| CN102296501A (en) * | 2011-06-16 | 2011-12-28 | 中国农业大学 | Seamless track rail temperature locking preprocessing system |
| CN103789517A (en) * | 2012-10-26 | 2014-05-14 | 上海汇众汽车制造有限公司 | Induction hardening method and induction apparatus for high strength steel special shape rear axle cross beam |
| CN103789517B (en) * | 2012-10-26 | 2016-03-16 | 上海汇众汽车制造有限公司 | The special-shaped rear axle crossbeam induction hardening method of high-strength steel and inductor block thereof |
| CN104513883A (en) * | 2013-10-07 | 2015-04-15 | 本田技研工业株式会社 | Thermal treatment device for external connector part and manufacture method for external connector part |
| CN106282502A (en) * | 2016-08-31 | 2017-01-04 | 浙江建鑫型钢科技有限公司 | The processing technique of miniature guide rail |
| CN106282502B (en) * | 2016-08-31 | 2019-03-05 | 浙江建鑫型钢科技有限公司 | The processing technology of miniature guide rail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHONGYE SAIDI ENGINEERING TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: CHONGQING IRON AND STEEL DESIGN INST., BAOGANG GROUP CORP. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Zhongye Saide Engineering Technology Co., Ltd. Patentee before: Chongqing Iron and Steel Design Inst., Baogang Group Corp. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |