CN201834955U - Single-spindle industrial frequency heating furnace - Google Patents
Single-spindle industrial frequency heating furnace Download PDFInfo
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- CN201834955U CN201834955U CN2010205540836U CN201020554083U CN201834955U CN 201834955 U CN201834955 U CN 201834955U CN 2010205540836 U CN2010205540836 U CN 2010205540836U CN 201020554083 U CN201020554083 U CN 201020554083U CN 201834955 U CN201834955 U CN 201834955U
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- support body
- induction coil
- power frequency
- process furnace
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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 relates to a single-spindle industrial frequency heating furnace, which comprises a furnace frame, a furnace liner, an inducing body and magnetic yokes, wherein the furnace frame comprises an upper support body and a lower support body, the inducing body formed by winding a hollow copper pipe surrounds the outer circle of the furnace liner to form one body, the upper support body and the lower support body are combined and tightly locked, the magnetic yoke arranged in the upper support body and the magnetic yoke arranged in the lower support body form mutual clamp with the inducing body, the inducing body is formed by arranging a plurality of mutually independent inducing coil sections in the axial direction, each inducing coil section is singly connected with a power supply and is formed by serially connecting a plurality of inducing coil units in the axial direction, and different power densities can be applied to each sensing coil section, and axial temperature gradient is generated on an aluminum bar, so the steples power regulation (free setting of heating temperature) is realized, the dynamic and static heating is realized, and the constant-temperature extrusion requirement is met.
Description
Technical field
The utility model relates to a kind of induction heater, relates in particular to a kind of single ingot power frequency process furnace.
Background technology
In the direct extrusion process of aluminium alloy, because the relative movement between excellent base and the container can produce heat of friction on excellent base surface.If excellent base go into a temperature along its length direction in the constant and extrusion process extrusion stem speed be consistent because the friction band becomes more and more longer, the volume element of excellent base will enter the distorted area under higher temperature.Therefore, the temperature out of section bar will be different when extruding begins with end, thereby cause along profile length direction generation performance difference (such as intensity, unit elongation and surface quality).This performance difference is very disadvantageous for the influence of industry profile and the big section section bar of track traffic.In order to eliminate disadvantageous effect, traditional way is to reduce extrusion speed, but this lowers the ability of press again, and output is reduced.Advanced at present way is to be pre-formed a thermograde on excellent base, to offset the heat of friction that produces in the extrusion process, carries out so-called isothermal extruding.So the temperature treatment of excellent base is most important for improving section quality, raising lumber recovery and output.
The utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of single ingot power frequency process furnace is provided.
The purpose of this utility model is achieved through the following technical solutions:
Single ingot power frequency process furnace, comprise grate, furnace lining, inductor and yoke, grate comprises upper support body and lower support, upper support body and lower support form square frame shape slot type structure by the square tube welding, in the slot type structure of upper support body, be distributed with left gusset and right web plate, be welded with channel-section steel on left gusset and the right web plate respectively; In the slot type structure of lower support, be distributed with left gusset and right web plate, be welded with channel-section steel on left gusset and the right web plate respectively, and also be welded with channel-section steel in the centre of lower support slot type structural base; On above-mentioned five channel-section steels, be evenly distributed with yoke, the inductor of hollow copper tubing coiled is integral around the outer ring of furnace lining, and be shelved on the intravital yoke of lower support, upper support body and lower support combination locking make intravital yoke of upper support and the intravital yoke of lower support constitute folder inductor; It is characterized in that: described inductor is arranged vertically by a plurality of ruhmkorff coil sections independent of each other and is constituted, and each ruhmkorff coil section is connected separately with power supply.
Further, above-mentioned single ingot power frequency process furnace, wherein, described each ruhmkorff coil section is connected in series vertically by a plurality of induction coil assemblies and constitutes.
Further, above-mentioned single ingot power frequency process furnace wherein, connects by web plate between described a plurality of induction coil assemblies, and is provided with insulating mat between the induction coil assembly.
Further, above-mentioned single ingot power frequency process furnace, wherein, described induction coil assembly forms with 2 cake multilayer lap wound mode coilings.
Further, above-mentioned single ingot power frequency process furnace wherein, is provided with insulating mat between the cake of described induction coil assembly and the cake.
Again further, above-mentioned single ingot power frequency process furnace, wherein, described each ruhmkorff coil section is made of 7 induction coil assemblies.
Again further, above-mentioned single ingot power frequency process furnace, wherein, described each ruhmkorff coil section is provided with thermal sensor.
Again further, above-mentioned single ingot power frequency process furnace, wherein, described ruhmkorff coil section has 6 sections.
Substantive distinguishing features and obvious improvement that technical solutions of the utility model are outstanding are mainly reflected in:
The utility model process furnace modern design is provided with a plurality of ruhmkorff coil sections, and each ruhmkorff coil section is connected separately with power supply, can require independent control according to excellent base size and differing temps.The phasing degree that each ruhmkorff coil section is identical guarantees the uniform distribution of inducedmagnetic field, and the inductor that connects guarantees to be heated uniform temperature distribution in the blank separately.Realize that independent stepless power is regulated, precise dose gradient curve more, Heating temperature is even, and radial temperature difference is little; According to producing needs independent control heating process, heating power can be adjusted continuously, satisfies isothermal extruding requirement.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: the schematic side view of the utility model process furnace;
Fig. 2: the master of inductor looks synoptic diagram;
Fig. 3: the master of ruhmkorff coil section looks synoptic diagram;
Fig. 4: the schematic side view of first induction coil assembly;
Fig. 5: the schematic side view of second induction coil assembly;
Fig. 6: the schematic side view of the 3rd induction coil assembly;
Fig. 7: the schematic side view of the 4th induction coil assembly;
Fig. 8: the schematic side view of the 5th induction coil assembly;
Fig. 9: 6th sense is answered the schematic side view of coil unit;
Figure 10: the schematic side view of the 7th induction coil assembly.
The implication of each Reference numeral sees the following form among the figure:
Embodiment
Induction heating is the direct Electric heating that a kind of electromagnetism alternating magnetic field that utilizes coil carries out energy transformation.Annular flow to coil will be heated workpiece and concentrate encapsulation, be equivalent to transformer principle.That is to say that a secondary coil is connected by the flux of force lines (magnetic line of force) of time dependent primary winding.Primary winding is the ruhmkorff coil that connects on suitable power supply, and secondary coil is then by being heated workpiece representative itself.
In order to satisfy the more and more higher requirement that the extruding industry proposes excellent base heating installation, designed the excellent base gradient-heated of single ingot system, novel process furnace is furnished with a plurality of ruhmkorff coil sections, and each ruhmkorff coil section is connected separately with power supply, can require independent control according to excellent base size and differing temps.The phasing degree that each ruhmkorff coil section is identical has guaranteed the uniform distribution of inducedmagnetic field, and the inductor that connects guarantees to be heated uniform temperature distribution in the blank separately.The equilibrator of equipment can be guaranteed the load balancing of main current supply circuit.
As shown in Figure 1, single ingot power frequency process furnace comprises grate, furnace lining 6, inductor 5, yoke 7 and storing lifting mechanism, pusher, passes on and expect mechanism's electrical system.Grate comprises upper support body 1 and lower support 2, upper support body 1 and lower support 2 form square frame shape slot type structure by the square tube welding, in the slot type structure of upper support body, be distributed with left gusset 3a and right web plate 3b, be welded with channel-section steel respectively on left gusset 3a and the right web plate 3b; In the slot type structure of lower support 2, be distributed with left gusset 4a and right web plate 4b, be welded with channel-section steel 8 respectively on left gusset 4a and the right web plate 4b, and also be welded with channel-section steel in the centre of lower support slot type structural base; On above-mentioned five channel-section steels, be evenly distributed with yoke 7, the inductor 5 of hollow copper tubing coiled is integral around the outer ring of furnace lining 6, and be shelved on the intravital yoke of lower support, upper support body 1 and lower support 2 combination lockings make intravital yoke of upper support and the intravital yoke of lower support constitute folder inductor.
Inductor is arranged vertically by a plurality of ruhmkorff coil sections independent of each other and is constituted, as shown in Figure 2, the ruhmkorff coil section has 6 sections, promptly the first ruhmkorff coil section 6a, the second ruhmkorff coil section 6b, the 3rd ruhmkorff coil section 6c, the 4th ruhmkorff coil section 6d, the 5th ruhmkorff coil section 6e and 6th sense are answered coiled segment 6f, each ruhmkorff coil section is connected separately with power supply, control produces axial-temperature gradient thereby make on the aluminium bar that places furnace lining respectively.Each ruhmkorff coil section is provided with thermal sensor, by thermal sensor monitoring with show the temperature of each section, realizes the effect of overheating protection.The copper pipe of each ruhmkorff coil section connects water inlet pipe and rising pipe.
Each ruhmkorff coil section is connected in series vertically by a plurality of induction coil assemblies and constitutes, as shown in Figure 3, single ruhmkorff coil section is made of 7 induction coil assemblies, the i.e. first induction coil assembly 6a1, the second induction coil assembly 6a2, the 3rd induction coil assembly 6a3, the 4th induction coil assembly 6a4, the 5th induction coil assembly 6a5,6th sense is answered coil unit 6a6 and the 7th induction coil assembly 6a7, the first induction coil assembly 6a1, the second induction coil assembly 6a2, the 3rd induction coil assembly 6a3, the 4th induction coil assembly 6a4, the 5th induction coil assembly 6a5,6th sense is answered between coil unit 6a6 and the 7th induction coil assembly 6a7 and is connected by web plate, and induction coil assembly is provided with insulating mat each other.
Each induction coil assembly all forms with the coiling of 2 cakes (axially) multilayers (radially) lap wound mode, is provided with insulating mat between the cake of induction coil assembly and the cake.The structure of the first induction coil assembly 6a1 is as Fig. 4; The structure of the second induction coil assembly 6a2 is as Fig. 5; The structure of the 3rd induction coil assembly 6a3 is as Fig. 6; The structure of the 4th induction coil assembly 6a4 is as Fig. 7; The structure of the 5th induction coil assembly 6a5 is as Fig. 8; 6th sense is answered the structure of coil unit 6a6, as Fig. 9; The structure of the 7th induction coil assembly 6a7 is as Figure 10.
Heated aluminium bar is fixing by the inductor central authorities of hollow copper wire coiling, and inductor 6 is made up of the ruhmkorff coil section subregion of a plurality of axial array independent of each other.According to aluminium bar length and desired temperatures distribution curve conversion subregion, make heated metal bar carry out heat treated with axial temperature distribution, realize so-called isothermal extruding.
Adopt the ITN converter technique, guarantee that all heating modules with same frequency and phasing degree work, have avoided the temperature drop of each ruhmkorff coil section joining place; Each ruhmkorff coil section can apply different capacity density, thereby produces axial-temperature gradient on aluminium bar; Realize stepless power adjusting (setting Heating temperature arbitrarily); Reach dynamically and heat with static.Each ruhmkorff coil section is equipped with regulates transformer, and power density regulation range from 30% to 110% is repeatedly moved the impulse of current that causes thereby reduce holding stage because of silicon-controlled switch (SCS), prolongs the silicon controlled rectifier life-span, and creates conditions for specific alloy heats.Be equipped with the coil quick replacement device, shorten the replacing time.
Because the design of a plurality of (4～6) ruhmkorff coil section parallel arranged makes the temperature of blank to regulate separately.Temperature controlling realizes by the electric control gear that works alone separately, connects the subregion power supply according to specified temperature distributing characteristic; Perhaps according to program, guarantee to reach each sectional different rated value, setting higher head temperature can have influence preferably to extrusion process.
Whole power supply system adopts single-phase silicon-controlled break-make control Heating temperature, and the output rating of power supply is that mains frequency is 50HZ.A whole set of power supply is made up of 6 groups of identical silicon controlled rectifier regulons, every group of regulon connects the two-phase of three-phase supply, each ruhmkorff coil section independent switch, independent regulation power respectively with balance mode, realize multi-region difference or power supply simultaneously, be implemented in the axial formation temperature gradient of aluminium bar.
Owing to adopt the coil winding of the few application yoke of loss, compare with traditional winding method, under very weak stray field, can produce higher electronics factor simultaneously.Coiler part have one fast conversion coupling mechanism and one extra close water valve, the supply lead that can be unloaded easily in addition, thereby more emat coil that can be simple, convenient and rapid.Each ruhmkorff coil section can simply be removed after removing yoke.
In sum, each ruhmkorff coil section of the utility model realizes independent stepless power adjusting, more precise dose gradient curve; Heating temperature is even, and radial temperature difference is little; According to producing needs independent control heating process, satisfy the isothermal extruding, heating power can be adjusted continuously; Main supply network load balancing, irrelevant with coiled segment quantity; If necessary, can adopt the frequency that is lower than power frequency, obtain better all thermal effects to increase the depth of current penetration; Instruction type PID temperature control fast, the superheating phenomenon that excellent base is heated under high power density drops to minimum; The gradient characteristic is variable, with the temperature value of realizing presetting, when blank has temperature hysteresis and thermal conductivity not high, can effectively reduce superheating phenomenon, obtains any heating power curve on demand.
What need understand is: the above only is a preferred implementation of the present utility model; for those skilled in the art; under the prerequisite that does not break away 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 (8)
1. single ingot power frequency process furnace, comprise grate, furnace lining, inductor and yoke, grate comprises upper support body and lower support, upper support body and lower support form square frame shape slot type structure by the square tube welding, in the slot type structure of upper support body, be distributed with left gusset and right web plate, be welded with channel-section steel on left gusset and the right web plate respectively; In the slot type structure of lower support, be distributed with left gusset and right web plate, be welded with channel-section steel on left gusset and the right web plate respectively, and also be welded with channel-section steel in the centre of lower support slot type structural base; On above-mentioned five channel-section steels, be evenly distributed with yoke, the inductor of hollow copper tubing coiled is integral around the outer ring of furnace lining, and be shelved on the intravital yoke of lower support, upper support body and lower support combination locking make intravital yoke of upper support and the intravital yoke of lower support constitute folder inductor; It is characterized in that: described inductor is arranged vertically by a plurality of ruhmkorff coil sections independent of each other and is constituted, and each ruhmkorff coil section is connected separately with power supply.
2. single ingot power frequency process furnace according to claim 1 is characterized in that: described each ruhmkorff coil section is connected in series vertically by a plurality of induction coil assemblies and constitutes.
3. single ingot power frequency process furnace according to claim 2 is characterized in that: connect by web plate between described a plurality of induction coil assemblies, and be provided with insulating mat between the induction coil assembly.
4. single ingot power frequency process furnace according to claim 2 is characterized in that: described induction coil assembly forms with 2 cake multilayer lap wound mode coilings.
5. single ingot power frequency process furnace according to claim 4 is characterized in that: be provided with insulating mat between the cake of described induction coil assembly and the cake.
6. single ingot power frequency process furnace according to claim 1 is characterized in that: described each ruhmkorff coil section is made of 7 induction coil assemblies.
7. single ingot power frequency process furnace according to claim 1 is characterized in that: described each ruhmkorff coil section is provided with thermal sensor.
8. single ingot power frequency process furnace according to claim 1, it is characterized in that: described ruhmkorff coil section has 6 sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205540836U CN201834955U (en) | 2010-10-09 | 2010-10-09 | Single-spindle industrial frequency heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205540836U CN201834955U (en) | 2010-10-09 | 2010-10-09 | Single-spindle industrial frequency heating furnace |
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| Publication Number | Publication Date |
|---|---|
| CN201834955U true CN201834955U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205540836U Expired - Fee Related CN201834955U (en) | 2010-10-09 | 2010-10-09 | Single-spindle industrial frequency heating furnace |
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| Country | Link |
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| CN (1) | CN201834955U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948952A (en) * | 2010-10-09 | 2011-01-19 | 苏州工业园区华福科技有限公司 | Single-ingot power frequency heating furnace |
| CN107262546A (en) * | 2017-08-07 | 2017-10-20 | 江苏中福铝镁科技有限公司 | A kind of aluminium alloy round cast ingot cartridge heater and heating means |
| CN111254270A (en) * | 2020-03-11 | 2020-06-09 | 北京星英联微波科技有限责任公司 | Material heat treatment device for antenna production |
-
2010
- 2010-10-09 CN CN2010205540836U patent/CN201834955U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948952A (en) * | 2010-10-09 | 2011-01-19 | 苏州工业园区华福科技有限公司 | Single-ingot power frequency heating furnace |
| CN107262546A (en) * | 2017-08-07 | 2017-10-20 | 江苏中福铝镁科技有限公司 | A kind of aluminium alloy round cast ingot cartridge heater and heating means |
| CN111254270A (en) * | 2020-03-11 | 2020-06-09 | 北京星英联微波科技有限责任公司 | Material heat treatment device for antenna production |
| CN111254270B (en) * | 2020-03-11 | 2021-07-23 | 北京星英联微波科技有限责任公司 | Material heat treatment device for antenna production |
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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: 20110518 Termination date: 20151009 |
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| EXPY | Termination of patent right or utility model |