CN202786335U - High-frequency induction continuous annealing line of precise steel pipe - Google Patents
High-frequency induction continuous annealing line of precise steel pipe Download PDFInfo
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- CN202786335U CN202786335U CN201220350884XU CN201220350884U CN202786335U CN 202786335 U CN202786335 U CN 202786335U CN 201220350884X U CN201220350884X U CN 201220350884XU CN 201220350884 U CN201220350884 U CN 201220350884U CN 202786335 U CN202786335 U CN 202786335U
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- steel pipe
- frequency induction
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- induction
- continuous annealing
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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
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Abstract
The utility model relates to a high-frequency induction continuous annealing line of a precise steel pipe. The high-frequency induction continuous annealing line comprises a discharging device, a high-frequency inductor, a heat-preservation pipe, a cooling pipe, a traction device and a winding device, through which the steel pipe sequentially passes; three groups of induction coils are arranged in the high-frequency inductor, quartz pipes are wrapped on the surface of each group of induction coils, and the steel pipe and the quartz pipes are alternately arranged at the inner ring of the induction rings. According to the high-frequency induction continuous annealing line, a high-frequency induction unit supplies a heat source, the steel pipe is heated in a high-frequency annealing mode rather than a contact type heating mode, and high temperature can be directly generated in a metal object; the metal objects can be heated wholly, moreover, each part of the metal object can be heated selectively.
Description
Technical field
The utility model relates to online annealing device, and especially a kind of high-frequency induction mode that adopts heats the annealed wire that reaches annealing temperature to steel pipe.
Background technology
Precision tube extensively adopts continuously steel pipe short circuit heating, make steel pipe reach annealing temperature after, again with piping insulation, cooling, reach the continuous annealing purpose; Or adopt pit furnace, cover annealing.Sequential short circuit heating anneal technique, production efficiency is lower, and heating electrode contacts with steel pipe, and easily generating electrodes loose contact damages steel tube surface; Produce loaded down with trivial detailsly, need frequent reconditioning electrode, guarantee that contact is good.Pit furnace or cover annealing are positioned at the steel pipe of stove different positions because Heating temperature is different, cause steel tube performance inhomogeneous.These two kinds of process energy consumptions are all higher.
The utility model content
The technical problems to be solved in the utility model is: propose a kind of precision tube high-frequency induction continuous annealing line, do not need to adopt the contact heating mode just can directly heat whole workpiece.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of precision tube high-frequency induction continuous annealing line comprises steel pipe successively discharging device, high-frequency induction device, utilidor, cooling duct, towing mechanism and the wrap-up of process; Be provided with three groups of induction coils in the described high-frequency induction device, the surface of every group of induction coil all is enclosed with silica tube, and described steel pipe interval silica tube is placed on the induction coil inner ring.
High-frequency induction device described in the utility model is actually a powerful frequency transformer, electronic installation by equipment itself, the common industrial-frequency alternating current of 50Hz is become tens arrive hundreds of hertz high-frequency alternating current, it mainly contains controlled rectifier, electron tube concussion and pilot circuit three parts composition, is electrically connected between the each several part.When the electric current that induces is flowed through induction coil, can produce induced current in the steel tube surface of induction coil parcel, induced current is flowed through after the steel tube surface can heating, and the heat of generation is enough to heat steel pipe to annealing temperature.
Steel pipe described in the utility model is the Bandaid pipe.
Processing step of the present utility model is as follows:
1) discharging device carries out the continuous high frequency induction heating with steel pipe continuous feed high-frequency induction device;
2) steel pipe in the high-frequency induction device through three groups of induction coils progressively be heated to annealing temperature, annealing temperature is 850 ~ 900 ℃, annealing time is 5 ~ 6 seconds;
3) steel pipe after the heating enters utilidor, and soaking time is 10 ~ 12 seconds;
4) steel pipe enters cooling duct and carries out temperature cooling;
5) steel tube surface temperature cooling is down to 100 ℃ and is wound into plate-like to deliver to wrap-up by towing mechanism after interior.
Specifically, the Trace speed of annealing process described in the utility model is 90 ~ 120m/min.
Step 2 described in the utility model) steel pipe through the progressively type of heating of 3 groups of induction coils is in: steel pipe is higher than initial temperature through first group of induction coil surface temperature and gets final product; Steel pipe through second group of induction coil surface temperature near annealing temperature; Steel pipe reaches annealing temperature through the 3rd group of induction coil surface temperature, and this moment, the annealing heating state finished.
Step 2 described in the utility model) again with the steel pipe parcel wherein, the purpose that adopts the silica tube parcel was because silica tube is high temperature resistant and transparent, observes easily the heating state of steel pipe after the induction coil in wrapped up by silica tube.
Principle of work of the present utility model is: induction coil with the steel pipe parcel wherein, when passing into the exchange current of certain frequency in the inductor block, namely produces alternating magnetic field on every side by after the coiling.The electromagnetic induction effect of alternating magnetic field makes induced current---the eddy current that produces sealing in the workpiece, and the electric energy of workpiece surface high-density current changes heat energy into, and the temperature on top layer is raise, and namely realizes surface heating.
The beneficial effects of the utility model are, solve the defective that exists in the background technology, adopted the high-frequency induction unit to provide the source for heat, adopted the high frequency annealing mode that steel pipe is heated, do not need picture contact heating mode, just can in metal object, directly produce high temperature; Not only can make the whole heating of metal object, also can optionally carry out local heating to each position; Being a kind of revolution of type of heating, is the electric energy heating equally, and it but can economize on electricity 40 percent than electric furnace, electric oven etc., and the consistence of steel tube surface quality and steel pipe integral mechanical property has been had larger lifting.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the rough schematic view of annealed wire of the present utility model;
Among the figure: 1, discharging device; 2, high-frequency induction device; 3, utilidor; 4, cooling duct; 5, towing mechanism; 6, wrap-up.
Embodiment
With preferred embodiment the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of precision tube high-frequency induction continuous annealing line as shown in Figure 1 comprises steel pipe successively discharging device 1, high-frequency induction device 2, utilidor 3, cooling duct 4, towing mechanism 5 and the wrap-up 6 of process; Be provided with three groups of induction coils in the high-frequency induction device 2, the surface of every group of induction coil all is enclosed with silica tube, and steel pipe interval silica tube is placed on the induction coil inner ring.
The direction of arrow among the figure is the direct of travel of steel pipe.Discharging device 1 main placement material to be produced, namely the Bandaid pipe is passive feeding device, itself is without driving motor; High-frequency induction annealing adopts the electric energy magnetisation, and magnetic energy is given birth to the principle of heat, and steel pipe is carried out the pointwise heating.
Steel pipe is by the induction coil by the silica tube parcel, steel pipe is progressively heated across silica tube by three groups of induction coils, after steel pipe after the heating enters utilidor, after of short duration insulation, enter cooling duct, when treating that steel pipe goes out cooling duct, surface temperature is reduced to 100 ℃ with after interior, enter towing mechanism, finally be wound into plate-like by wrap-up.
Traditional resistance-type annealed wire Trace speed is 30m/min, and continous way high-frequency induction annealing line Trace speed of the present utility model is 90 ~ 120m/min, and production efficiency is 3 ~ 4 times of resistance-type annealed wire;
It is 1.8kw that the resistance-type annealed wire per hour consumes electric energy, and it is 1.2kw that the high frequency annealing line per hour consumes electric energy, compares with the resistance-type annealed wire and saves 30% ~ 40% energy consumption;
In the whole production process, the material of continous way high-frequency induction annealing line production surface detail can not occur, is infected with foreign matter, pit can surface imperfection.
The transmission apparatus of this name is initiatively rewinding, passive blowing, so transmission system is stable, need not transmission system and heating system frequent maintenance.
What describe in the above specification sheets is embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, the person of an ordinary skill in the technical field after having read specification sheets can to before described embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of utility model.
Claims (3)
1. a precision tube high-frequency induction continuous annealing line is characterized in that: comprise steel pipe successively discharging device, high-frequency induction device, utilidor, cooling duct, towing mechanism and the wrap-up of process; Be provided with three groups of induction coils in the described high-frequency induction device, the surface of every group of induction coil all is enclosed with silica tube, and described steel pipe interval silica tube is placed on the induction coil inner ring.
2. precision tube high-frequency induction continuous annealing line as claimed in claim 1, it is characterized in that: described high-frequency induction device is for becoming the common industrial-frequency alternating current of 50Hz the big-power transducer of tens to hundreds of hertz high-frequency alternating current, it comprises controlled rectifier, electron tube concussion and pilot circuit three parts, is electrically connected between the each several part.
3. precision tube high-frequency induction continuous annealing line as claimed in claim 1, it is characterized in that: described steel pipe is the Bandaid pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220350884XU CN202786335U (en) | 2012-07-18 | 2012-07-18 | High-frequency induction continuous annealing line of precise steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220350884XU CN202786335U (en) | 2012-07-18 | 2012-07-18 | High-frequency induction continuous annealing line of precise steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202786335U true CN202786335U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220350884XU Expired - Fee Related CN202786335U (en) | 2012-07-18 | 2012-07-18 | High-frequency induction continuous annealing line of precise steel pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN202786335U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766750A (en) * | 2012-07-18 | 2012-11-07 | 常州市武进顺达精密钢管有限公司 | High-frequency induction type continuous annealing process and high-frequency induction type continuous annealing line for precision steel pipe |
| CN103740901A (en) * | 2013-12-12 | 2014-04-23 | 四川永贵科技有限公司 | Contact member high-frequency annealing tool |
-
2012
- 2012-07-18 CN CN201220350884XU patent/CN202786335U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766750A (en) * | 2012-07-18 | 2012-11-07 | 常州市武进顺达精密钢管有限公司 | High-frequency induction type continuous annealing process and high-frequency induction type continuous annealing line for precision steel pipe |
| CN103740901A (en) * | 2013-12-12 | 2014-04-23 | 四川永贵科技有限公司 | Contact member high-frequency annealing tool |
| CN103740901B (en) * | 2013-12-12 | 2015-09-23 | 四川永贵科技有限公司 | Contact element high frequency annealing frock |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20160718 |