CN201682647U - Induction heater and induction heat treatment equipment - Google Patents
Induction heater and induction heat treatment equipment Download PDFInfo
- Publication number
- CN201682647U CN201682647U CN2010201322245U CN201020132224U CN201682647U CN 201682647 U CN201682647 U CN 201682647U CN 2010201322245 U CN2010201322245 U CN 2010201322245U CN 201020132224 U CN201020132224 U CN 201020132224U CN 201682647 U CN201682647 U CN 201682647U
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- Prior art keywords
- steel wire
- induction
- induction heater
- brush
- induction coil
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- 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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Abstract
The utility model discloses an induction heater, induction heat treatment equipment and a steel wire induction heat treatment method, which are used for induction heat treatment of steel wires; the induction heater comprises an induction coil, a power supply and an electric brush, the electric brush is connected by a connecting lead wire, the steel wire is heated in the induction coil; in addition, in the heating process, the steel wire is respectively contacted with the electric brush outside the two ends of the induction coil; wherein the induction coil and the power supply form a primary current return circuit of the steel wire induction heater, and the steel wire, the electric brush and the connecting lead wire form a secondary current return circuit of the steel wire induction heater; the induction heat treatment equipment comprises the steel wire induction heater; in the utility model, the secondary current return circuit formed by the steel wire, the electric brush and the connecting lead wire provides heat source for the steel wire, the energy source utilization rate is improved, the energy consumption is reduced, and the possibility for heating thin steel wires by induction is realized.
Description
Technical field
The utility model relates to induction heating heat-treatment device, relates in particular to steel wire induction heater and induction heating heat-treatment device.
Background technology
Steel wire is according to the needs of producing and using, need carry out multiple heat treatment, as quenching normalizing, tempering, isothermal hardening, annealing or the like, all technology all needs to be heated to different temperature, then to finish after the different medium cooling of cooling capacity, the induction heating of steel wire is handled and is needed high efficiency of energy utilization, low energy consumption.
Fig. 1 is the schematic diagram of the steel wire induction heater of prior art, as shown in Figure 1, usually during the steel wire induction heating, produces electric current I in the induction coil
1, because magnetic flux changes in the steel wire, can induction generate eddy current i in the steel wire, eddy current i is along the periphery of steel wire, with coil current I
1Direction in opposite directions, this eddy current i become the heating steel wire thermal source.Yet there is energy loss in this induction heating, the problem of not being fully used.
Chinese patent (publication number: CN101260457) proposed a kind of steel wire induction heating heat-treatment device and method, this equipment is processed an endoporus by the heavy wall place at induction coil relative inner copper pipe, improved efficiency of energy utilization, yet, still exist induced current not to be fully used, the defective of energy loss.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of induction heater and induction heating heat-treatment device, to solve the low defective of steel wire induction heating using energy source in the prior art.
For achieving the above object, the utility model proposes a kind of induction heater, be applicable to the induction heating of steel wire, it is characterized in that, comprise induction coil, power supply and brush, described brush connects by connecting lead, described steel wire is heated in described induction coil, and, in heating process, described steel wire contacts with described brush respectively outside described induction coil two ends, wherein, described induction coil and described power supply are formed the primary current loop of steel wire induction heater, described steel wire, described brush and described connection lead are formed the secondary current loop of steel wire induction heater.
Wherein, described connection lead is positioned at the outside of described induction coil.
Wherein, described induction heater also comprises lever, described brushgear is in a side of described lever, and, the opposite side device of described lever has slide block, described slide block can move on lever, and the gravitational moment that the gravity of described brush and its arm of force produce is greater than the gravity of described slide block and the gravitational moment of its arm of force generation.
Wherein, described gauge of wire d≤2mm.
Wherein, described steel wire is replaceable is steel band or non-ferrous metal band.
And for achieving the above object, the utility model also proposes a kind of induction heating heat-treatment device, comprises above-mentioned induction heater.
The utility model is by steel wire, brush and connect the secondary current loop that lead forms, and for steel wire provides thermal source, can heat the steel wire of diameter d≤1mm under lower frequency f ≈ 50KHz, makes the induction heating finer wire become possibility.Can save the energy significantly, raise the efficiency.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is the schematic diagram of the steel wire induction heater of prior art;
Fig. 2 is the schematic diagram of steel wire induction heater of the present utility model.
Wherein, Reference numeral:
1: steel wire E: power supply
20: induction coil 25: brush
26: connect lead 27: slide block
28: the brush arm of force 29: the slide block arm of force
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
Fig. 2 is the schematic diagram of steel wire induction heater of the present utility model, as shown in Figure 2, the induction heater that the utility model proposed, be applicable to the induction heating heat treatment of steel wire, it comprises induction coil 20, power supply E and brush 25, steel wire 1 is heated in described induction coil 20, described steel wire 1 contacts with described brush 25 respectively outside described induction coil 20 two ends, described brush 25 connects by the connection lead 26 of high conduction, described connection lead 26 is positioned at the outside of described induction coil 20, connects the resistance R of the resistance r of lead 26 much smaller than steel wire 1.Wherein, described induction coil 20 and described power supply E form the primary current loop of steel wire induction heater, and described steel wire 1, described brush 25 and described connection lead 26 are formed the secondary current loop of induction heater.
In addition, the both sides of induction coil 20 respectively are provided with a lever, by described lever described brush 25 are installed.Particularly, as shown in Figure 2, the fulcrum of lever is O, described brush 25 is installed on a side of described lever, and, the opposite side device of described lever has a slide block 27, described slide block 27 can move on lever, and then change its arm of force, make the gravity of described brush 25 and the gravitational moment that its arm of force 28 produces be slightly larger than the gravity of described slide block 27 and the gravitational moment that its arm of force 29 produces, and then realize that described brush 25 closely contacts with described steel wire 1, and make automatically on the described steel wire 1 and can not bear bigger tension force.
Based on said structure, after power supply E starts, pass through electric current I in the induction coil 20
1, electric current I
1Along the circumferential flow of induction coil 20 at steel wire 1, because induction effect, induction generates eddy current i in steel wire 1, and eddy current i is along the periphery of steel wire 1, with coil current I
1Direction in opposite directions, this eddy current i becomes the thermal source of heating steel wire, induction coil 20 and power supply E have constituted the primary current loop of heating steel wire 1.And except utilizing above-mentioned eddy current i, meanwhile, heated steel wire 1, brush 25 and connection lead 26 thereof have constituted the secondary current loop of heating steel wire 1.In the secondary current loop of induction heater, produce electric current I
2, electric current I
2Direction along steel wire 1 axially, by brush 25 be connected lead 26 formation closed-loop paths.Because the electric current I in the secondary loop
2In steel wire 1, the resistance of steel wire 1 is R, electric current I
2In steel wire 1, produced heat I
2R, this heat become the thermal source of heating steel wire 1, have played another power supply of heating steel wire 1.
In other words, in the utility model, induction coil 20 is equivalent to the primary coil of air-core transformer, steel wire 1 is equivalent to the secondary coil of air-core transformer, and aforesaid primary current loop is equivalent to the loop that the primary coil of air-core transformer forms, and aforesaid secondary current loop is equivalent to the loop of the secondary coil formation of air-core transformer.
Wherein, induction heater of the present utility model heats applicable to the different-diameter steel wire, and, applicable to diameter is heated at 2mm or the steel wire below the 2mm.
According to the basic theories of induction heating, the relation of heating gauge of wire d and electric current penetrated bed δ should keep:
The electric current penetrated bed
ρ is a resistivity, and f is a power frequency, and μ is a magnetic permeability;
When heating-up temperature surpasses 800 ℃, promptly surpass Curie point (760 ℃) temperature, ρ
800=10
-4Ω .cm, μ
800=1,
Based on above-mentioned, if will heat diameter d is 2mm or following steel wire, then δ is 0.5mm or littler, and therefore, the heating frequency when putting more than 800 ℃ should reach f=10
6Hertz.Yet, well-known, high-power high-frequency device (f=10
6Conspicuous) can only applying electronic pipe high-frequency device, and the efficient of electron tube has only about 60%, and therefore, efficiency of energy utilization is low, and energy consumption is big.
Yet, induction heater of the present utility model, the electric current I of the secondary loop of induction heater
2For steel wire 1 provides the energy that heats, because the electric current I of the secondary loop of induction heater
2Effect, induction heater of the present utility model can adopt f=5 * 10
4Hertz frequency, be steel wire heating to 1000 ℃ below the 2mm or higher with diameter d.And f=5 * 10
4The converter plant of hertz, its efficient can reach more than 80%, therefore, has improved the induction heating efficient of steel wire greatly, reduces energy consumption about 10%.
Further, the utility model proposes a kind of induction heating heat-treatment device, this induction heating annealing device adopts above-mentioned induction heater of the present utility model, is used for the induction heating heat treatment of non-ferrous metal wires such as steel wire, galvanized wire or steel band, non-ferrous metal band.And other device that is comprised in this annealing device, as cooling device, temperature measuring equipment, steel wire conveying device etc. can adopt any related device in the prior art, and are unrestricted.For example, can adopt the applicant's (publication number: the related device in annealing device CN101260457).
In addition, the utility model adopts above-mentioned steel wire induction heater, the steel wire heating austenitizing of in the induction coil of induction heater, advancing, in this process, primary current loop that steel wire is made up of the induction coil and the power supply of described induction heater and steel wire, brush and connect the secondary current loop that lead forms and heat respectively.
Fig. 2 is the schematic diagram of steel wire induction heater of the present utility model, with reference to figure 2, steel wire 1 is sent in the induction heater through paying out machine, the heating austenitizing of in induction heater, advancing, in this process, the primary current loop that described induction coil 20 and described power supply E form, and the secondary current loop of described steel wire 1, described brush 25 and described connection lead 26 compositions.Described primary current loop produces electric current I
1, electric current I
1Cause changing, produce along its circumferential current i in the steel wire 1 by the magnetic flux of steel wire 1.And produce in the secondary current loop along the axial electric current I of steel wire 1
2, current i and electric current I
2Become the thermal source of heating steel wire 1.
The utility model can be applied to the modifier treatment of multiple diameter and multiple grade of steel steel wire, quench, normalizing, tempering, isothermal hardening, isothermal annealing, the isothermal sorbitizing is handled, and multiple wire heat treatment process such as recrystallization annealing and quick nodularization isothermal annealing can also be used for the diffusion heating of metal coating, the curing heating of coating, the preheating before being coated with etc.
And induction heater described in the utility model is applicable to the induction heating of non-ferrous metal wires such as steel wire, galvanized wire, also is suitable for the induction heating of steel band and non-ferrous metal band.Can be applied to the heat treatment heating of steel band and non-ferrous metal band, the curing heating before the plating behind preheating and the coating organic coating etc.
Effect of the present utility model:
Induction heater of the present utility model and induction heating annealing device thereof are by steel wire, brush and connect the secondary current loop that lead forms, for steel wire provides thermal source, can under lower frequency f ≈ 50KHz, heat the steel wire of diameter d≤2mm, make the induction heating finer wire become possibility.And can save the energy significantly, raise the efficiency to more than 80%.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (6)
1. induction heater, be applicable to the induction heating of steel wire, it is characterized in that, comprise induction coil, power supply and brush, described brush connects by connecting lead, described steel wire is heated in described induction coil, and, described steel wire contacts with described brush respectively outside described induction coil two ends, wherein, described induction coil and described power supply are formed the primary current loop of steel wire induction heater, and described steel wire, described brush and described connection lead are formed the secondary current loop of steel wire induction heater.
2. induction heater according to claim 1 is characterized in that described connection lead is positioned at the outside of described induction coil.
3. induction heater according to claim 2, it is characterized in that, also comprise lever, described brushgear is in a side of described lever, and, the opposite side device of described lever has slide block, and described slide block can move on lever, and the gravitational moment that the gravity of described brush and its arm of force produce is greater than the gravity of described slide block and the gravitational moment of its arm of force generation.
4. induction heater according to claim 1 is characterized in that, described gauge of wire d≤2mm.
5. steel wire induction heating treatment method according to claim 1 is characterized in that described steel wire replaces with steel band or non-ferrous metal band.
6. an induction heating heat-treatment device comprises any described induction heater in the claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201322245U CN201682647U (en) | 2010-03-12 | 2010-03-12 | Induction heater and induction heat treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201322245U CN201682647U (en) | 2010-03-12 | 2010-03-12 | Induction heater and induction heat treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201682647U true CN201682647U (en) | 2010-12-22 |
Family
ID=43347678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201322245U Expired - Fee Related CN201682647U (en) | 2010-03-12 | 2010-03-12 | Induction heater and induction heat treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201682647U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801125A (en) * | 2010-03-12 | 2010-08-11 | 冯伟年 | Induction heater, induction heating treatment equipment and induction heating treatment method |
| CN102220595A (en) * | 2011-05-31 | 2011-10-19 | 马鞍山钢铁股份有限公司 | Induction heating method and device for acid washing of hot rolled steel strip |
| CN104963225A (en) * | 2015-05-12 | 2015-10-07 | 南通恒新金属工艺科技有限公司 | Multiple steel wire induction heating and water-cooling production line |
-
2010
- 2010-03-12 CN CN2010201322245U patent/CN201682647U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801125A (en) * | 2010-03-12 | 2010-08-11 | 冯伟年 | Induction heater, induction heating treatment equipment and induction heating treatment method |
| CN101801125B (en) * | 2010-03-12 | 2012-09-05 | 冯伟年 | Induction heater, induction heating treatment equipment and induction heating treatment method |
| CN102220595A (en) * | 2011-05-31 | 2011-10-19 | 马鞍山钢铁股份有限公司 | Induction heating method and device for acid washing of hot rolled steel strip |
| CN104963225A (en) * | 2015-05-12 | 2015-10-07 | 南通恒新金属工艺科技有限公司 | Multiple steel wire induction heating and water-cooling production line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20130312 |