CN1266290C - Adiabatic gas for electromagnetic induction heater and vacuum sealing box body - Google Patents
Adiabatic gas for electromagnetic induction heater and vacuum sealing box body Download PDFInfo
- Publication number
- CN1266290C CN1266290C CNB021184445A CN02118444A CN1266290C CN 1266290 C CN1266290 C CN 1266290C CN B021184445 A CNB021184445 A CN B021184445A CN 02118444 A CN02118444 A CN 02118444A CN 1266290 C CN1266290 C CN 1266290C
- Authority
- CN
- China
- Prior art keywords
- outer shell
- cooling tube
- casing
- box body
- product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 12
- 230000005674 electromagnetic induction Effects 0.000 title claims description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 230000004907 flux Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 19
- 239000011159 matrix material Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 6
- 239000012777 electrically insulating material Substances 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims 1
- 229920000647 polyepoxide Polymers 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 12
- 230000001681 protective effect Effects 0.000 abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001257 hydrogen Substances 0.000 abstract description 4
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 4
- 239000011810 insulating material Substances 0.000 abstract description 3
- 230000001939 inductive effect Effects 0.000 abstract 2
- 239000011257 shell material Substances 0.000 description 25
- 230000006698 induction Effects 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000007669 thermal treatment Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
Abstract
The present invention relates to a gas vacuum sealing box body which is mainly used for a device carrying out electromagnetic inductive heating for products consecutively passing through the sealing box body. The present invention is characterized in that the present invention is provided with an outer casing (1) made of gas-tight vacuum-sealed electric insulating materials, and a heat shield (2) is used for protecting the inner surface of the outer casing; the heat shield is composed of a square basal body made of heat insulating materials and a plurality of fluid circulation cooling pipes (4) which are installed in the square basal body. The present invention is particularly applied to the aspect of electromagnetic inductive heating for stainless steel band-shaped products consecutively passing through the sealing box body under the protective atmosphere with high hydrogen contents.
Description
Technical field
The present invention relates under protective atmosphere or under vacuum, the metal product that passes through is continuously carried out electromagnetic induction heating.For a long time as you know, electromagnetic induction heater is used for thermal treatment under protective atmosphere, such as hot coating line (zinc-plated, be coated with and aluminize etc..) in or the application in continuous heat treatment production line (for example anneling production line).
Background technology
Usually all use two types electromagnetic induction heater for these equipment: vertical magnetic flux equipment (induction heater is by a plurality of that can constitute by the spiral winding of electric current and all be centered around around the product that passes through in succession, makes to produce magnetic flux along the direction of product operation) and horizontal magnetic flux equipment (in the plane that the spiral winding of induction heater all is in product surface parallels so that magnetic flux perpendicular to this product surface).
Using this of these devices one or another kind of all is according to wanting the type for the treatment of product to select.Therefore, vertical flux sensing is generally suitable for magnetic product, and its temperature wishes to reach that the most suitable heat of horizontal flux sensing especially is suitable for non-magnetic product near 750 ℃ (Curie temperatures).
In addition, when relating to the non-coated product that handle at a certain temperature, the danger that oxidation takes place is arranged under the sort of situation, then electromagnetic induction heating just should be carried out under protective atmosphere, such as carrying out under hydrogen and nitrogen blended atmosphere.The result who draws thus is: electromagnetic induction heater also comprises a casing, and product to be processed can therefrom pass and it should seal fully to air, so that avoid any oxidation of product.
In the known applications of this type induction heating, people use some induction heating devicees under protective atmosphere, and wherein heating unit is directly to be placed in the seal case.Thereby this stopping property that realizes around sensing apparatus just, this just has a lot of shortcomings and weak point, especially when these inductor blocks are carried out maintenance operations, inductor block all must be dismantled from case, or in order to realize to the sealing of the electric current inlet wire of inductor block power supply and the line of return and for the shortcoming of being brought such as cooling water circulation of these inductor blocks.
In order to address this problem, some application methodes as you know, such as those application described in disclosed european patent application No.0822733, a kind of heating unit is used in this patent application, the product air seal casing on every side that it comprises sensing apparatus and is placed in reach in succession, be between product and the inductor block, described seal case extends in the party upstream and the downstream side of inductor block along the product traffic direction.
In this european patent application, seal case is made of a sleeve in its middle portion that is surrounded by described sensing apparatus, and this sleeve comprises the fabric web of one deck or which floor thermal insulation and electrical isolation and covers a kind of air seal and anti-at least 100 ℃ but can not surpass the film (adopt vertical flux sensing and work device) of 750 ℃ of temperature.
Otherwise, when relate to by use horizontal magnetic flux or vertical flux sensing heating unit product by heating to the temperature (for example to stainless steel polishing annealing) that is higher than 750 ℃, the sleeve of being revealed in this patent documentation is just no longer valid to these temperature, this temperature has the danger that damages inductor block, and these inductor blocks generally can not be worked being higher than under 100 ℃ the temperature.
Summary of the invention
Thereby; the objective of the invention is; overcome this class shortcoming; and a kind of electrical isolation (that is to say can see through magnetic flux) gas and vacuum sealing box body proposed; it and thermal stabilization shield are bonded together; the magnetic circuit that this thermal stabilization shield can protect sensing apparatus and electromagnetic induction heater to be provided with, and no matter the function of this electromagnetic induction heater how can protect by (vertical magnetic flux or horizontal magnetic flux).
According to the present invention, this gas and vacuum sealing box body are placed in around the product of the reach in succession that will heat, are between product and the induction heating equipment.
For this reason; gas of the present invention and vacuum sealing box body are used for being in the device that the intravital product of reach in succession of described watertight chest carries out electromagnetic induction heating; it is characterized in that: it comprises has one at least to gas and vacuum-packed and be the outer shell that the material of electrical isolation is made in its middle portion that is centered on by described induction heating equipment; the internal surface of described outer shell is protected with a kind of thermoshield; this thermoshield is made up of the square matrix of a thermal insulation material and a plurality of fluid circulating cooling pipe, and these cooling tubes all are fixed in the described box-shaped matrix.
The effect of thermoshield is to guarantee that the temperature of formation outer shell material is about 100 ℃, and wants heating product to reach about 1200 ℃ temperature.
Description of drawings
Show in the explanation that further feature of the present invention and advantage can be from behind done with reference to accompanying drawing, accompanying drawing has been described the embodiment of its indefiniteness.Have among the figure:
Fig. 1 is the drawing in side sectional elevation of a seal case of the present invention;
Fig. 2 is a partial enlarged drawing that Fig. 1 is detailed;
Fig. 3 is a sectional view according to III-III line among Fig. 1;
Fig. 4 is a part sectioned view according to the IV-IV line of details parts among Fig. 3;
Fig. 5 is a synoptic diagram that the portion of hot treatment facility is shown, and this Equipment for Heating Processing includes seal case of the present invention.
Embodiment
Shown on Fig. 1 to 4, the gas of electrical isolation of the present invention and vacuum sealing box body have a kind of shape of the microscler outer shell 1 that engages with thermoshield 2.
The space 3 that forms in described outer shell will be suitable for wanting heat treated shape of product.For example, the outer shell of the described parallelepiped shape of Fig. 1 to 4 shows this device in a kind of application aspect the processing band shape product with regard to typical earth surface.
Certainly, this seal case also can be applied to various other products, it can be move forward in succession or be not move forward in succession (steel wire, copper wire, aluminium wire, or the like ...).
Thereby outer shell 1 will be used for being centered around in succession wanting around the heat treated product of reach, and is placed between the sensing apparatus of this product and heating unit.It can also extend on the whole height of sensing apparatus, but preferential selects a kind of upstream end beyond the inductor block and outer shell of downstream part of extending to, and makes the backflow of magneticinduction flux can not heat the end piece of this outer shell.
According to the present invention, can be respectively outside the ingress of valve jacket end and exit common gas and vacuum seal device are set, the band-type product that will heat that moves enters and leaves from the outer shell two ends continuously.The equipment of these common design is not shown in the accompanying drawings.
As shown in Figure 1, outer shell 1 of the present invention is by making through magnetic flux thereby material that also be electrical isolation.
According to the embodiment of a kind of indefiniteness of the present invention, described outer shell is by Resins, epoxy or the thread winding of analogous material and make.
But, equally without departing from the present invention some other embodiment can also arranged, and also to use some other material preparation outer shell, condition be that these materials can see through magnetic flux.Therefore, can prepare the outer shell of stupalith or the outer shell of glass material according to the present invention.
The interior space 3 of described outer shell can be full of a kind of protective gas (all being by nitrogen and the composite gas of hydrogen usually); making this product that any oxidative phenomena take place in the process of avoiding product is heat-treated, thus outer shell 1 must be to protective gas be sealing and also can be the sealed vacuum state.
In addition, outer shell also should belong to electrical insulator so that can not become the generation position of magneticinduction flux induced current.
In addition, as following described, it will have the favorable mechanical characteristic, good rigidity especially so that the thermoshield 2 that supporting is made of a plurality of pipes 4, these pipes all are fixed in the box-shaped matrix 5 of stupalith or analogous material.
In fact, thermoshield 2 is assembled into by a plurality of pipes 4, these pipes all be installed on all internal surfaces of outer shell 1 and fluid especially water just in these pipes circulation so that it is cooled off.
In preferred embodiment shown in Fig. 1 to 4, described cooling tube all is to be evenly distributed on all internal surfaces of outer shell 1.
According to another favorable characteristics of the present invention (with reference to Fig. 3), pipe 4 preferably is made of thin (about 0.5mm) stainless steel, and they form a plurality of hairpin curves (é pingle) (being configured to snakelike).These pipes also can be used electrically insulating material, thereby also are that the material that can see through magnetic flux is made, and are for example made by glass material, Resins, epoxy-glass material.
In addition, the square shape matrix made from pottery or other equivalent insulating material (concrete or the like) 5 is placed between each cooling tube 4, in order that cut off the thermal radiation of pending product.
Therefore described packet has a kind of special geometric form makes that they can according to those pipes 4 or pass and formed can be the securing square matrix of these pipes between pipe, but also makes described those pipes directly in the face of the product of reach in succession.
Constitute material (pottery, concrete or the like of packet 5 ...) be good thermal insulation material, so they can be used to cut off the radiant heat flux of heated product.
In addition, described product and can reach the place that is fixed in the described packet 5 pipe 4 less, this partial radiation heat also can by with aforementioned tube in the round-robin cooling fluid carry out heat exchange and be extracted away.
The thermoshield 2 that is assembled into by pipe 4 and packet 5 mechanically is fixed on the outer shell internal surface by screw 6 or similar fastener.
Advantageously, between this thermoshield and outer shell 1, insert a cleaved glass 7 (for example its thickness is about 3mm), therefore lay than being easier to, thereby also can be fixed on those pipes 4 and packet 5 on the described outer shell more easily, this laminated glass 7 itself just is installed between the thin silk screen layer 8 and 9 of two potteries or analogous material.
Certainly, in order to obtain the optimum efficiency of this thermoshield, just need when be installed, thermoshield make and leave as far as possible little slit between outer shell 1 and the thermoshield 2 and between pipe 4 and square 5.
The application example of the sealed, thermally insulated case of the present invention aspect the band-type product Equipment for Heating Processing that moves forward in succession now just described.
In this embodiment, Equipment for Heating Processing is specified and is used under the protective atmosphere of high-content hydrogen the banded product of the stainless steel of reach in succession being carried out heat treated.Such thermal treatment can typically need the Heating temperature about 1150 ℃.In order to reach this temperature, use a kind of electromagnetic induction heater as shown in Figure 5.
This heating unit comprises that at least one can be by the winding coil 10 of electric current, and it is installed in the plane that parallels with pending band-type product 11 surfaces of reach in succession, so that the most surfaces of transverse flux and described band-type product is perpendicular.In addition, seal case 12 of the present invention, as above-mentioned seal case, be installed in band-type product around, and between this band-type product and winding coil 10, and described seal case preferably extends in the party upstream of described winding spiral winding and downstream side in the plane of the direction that moves forward in succession perpendicular to described band-type product.
The pipe 13 that constitutes described seal case thermoshield all links to each other with the inlet and the outlet header of cooling fluid, so that take away the band-type product institute radiating small part heat that passes the square shape matrix 14 that pottery or analogous material make.Therefore, this seal case can be realized dual-use function: it plays the effect of the required air seal of band-type product thermal treatment (or vacuum) case, and it also can protect described outer shell effectively.
This seal case can also directly be adjusted the stopping property that (especially when maintaining these coils) also can not destroy described seal case simultaneously to ruhmkorff coil.Therefore, seal case of the present invention is suitable for the various equipment that utilize protective gas or work fully under vacuum.
Certainly, the present invention describe above not being limited to and figure in several embodiment of introducing, but comprise all various modification.
Claims (11)
1. gas and vacuum sealing box body; it is used for the product that moves forward in succession in the described seal case is carried out the device of electromagnetic induction heating; it is characterized in that: described seal case comprises one by outer shell (1) electrical isolation and that gas and vacuum-packed material are made; the internal surface of described outer shell all uses a thermoshield (2) to be protected; the box-shaped matrix (5) that described thermoshield is made by a usefulness thermal insulation material and a plurality of fluid circulating cooling pipe (4) are formed, and these fluid cooling tubes are fixed in the described box-shaped matrix.
2. casing according to claim 1 is characterized in that: described outer shell (1) is by Resins, epoxy or the thread winding of analogous material and make.
3. casing according to claim 1 is characterized in that: described outer shell (1) is made by pottery or glass material.
4. according to each described casing in the claim 1 to 3, it is characterized in that: described cooling tube (4) all is to be evenly distributed on all internal surfaces of outer shell.
5. according to each described casing in the claim 1 to 3, it is characterized in that: described cooling tube (4) forms a plurality of hairpin curves.
6. casing according to claim 4 is characterized in that: described cooling tube (4) forms hairpin curve.
7. casing according to claim 5 is characterized in that: described cooling tube (4) is made by thin stainless steel.
8. according to each described casing in the claim 1 to 3, it is characterized in that: described cooling tube (4) is with electrically insulating material thereby is that the material that can see through magnetic flux is made.
9. casing according to claim 4 is characterized in that: described cooling tube (4) is with electrically insulating material thereby is that the material that can see through magnetic flux is made.
10. casing according to claim 8 is characterized in that: described cooling tube (4) is made with glass, glass-epoxide resin material.
11. according to each described casing in the claim 1 to 3, it is characterized in that: a cleaved glass (7) is installed between described outer shell (1) and described cooling tube (4) and the packet (5) in the convenient mode of implementing, thereby also just can be fixed on these cooling tubes and packet on the described outer shell easily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021184445A CN1266290C (en) | 2002-04-25 | 2002-04-25 | Adiabatic gas for electromagnetic induction heater and vacuum sealing box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021184445A CN1266290C (en) | 2002-04-25 | 2002-04-25 | Adiabatic gas for electromagnetic induction heater and vacuum sealing box body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1453376A CN1453376A (en) | 2003-11-05 |
| CN1266290C true CN1266290C (en) | 2006-07-26 |
Family
ID=29257354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021184445A Expired - Lifetime CN1266290C (en) | 2002-04-25 | 2002-04-25 | Adiabatic gas for electromagnetic induction heater and vacuum sealing box body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1266290C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2887739B1 (en) * | 2005-06-22 | 2007-08-31 | Roctool Soc Par Actions Simpli | INDUCTION HEATING DEVICE AND METHOD FOR MANUFACTURING PARTS USING SUCH A DEVICE |
| US10232530B2 (en) | 2005-06-22 | 2019-03-19 | Roctool | Induction heating device and method for making a workpiece using such a device |
| US8657595B2 (en) | 2008-02-26 | 2014-02-25 | Roctool | Device for transforming materials by induction heating |
| IT201900006433A1 (en) * | 2019-04-29 | 2020-10-29 | Rotelec Sa | HEATING APPARATUS FOR METALLIC PRODUCTS |
-
2002
- 2002-04-25 CN CNB021184445A patent/CN1266290C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1453376A (en) | 2003-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4085307B2 (en) | Insulating gas sealed and vacuum sealed chamber for induction heating apparatus | |
| US4431901A (en) | Induction plasma tube | |
| US7424045B2 (en) | Method and apparatus for heating a workpiece in an inert atmosphere or in vacuum | |
| EP2959746B1 (en) | Induction heating head | |
| CN1266290C (en) | Adiabatic gas for electromagnetic induction heater and vacuum sealing box body | |
| US11770878B2 (en) | Tubular concentrator for concentric radiation of electromagnetic waves | |
| US8803046B2 (en) | Inductor assembly for transverse flux electric induction heat treatment of electrically conductive thin strip material with low electrical resistivity | |
| US20090066453A1 (en) | Choke of electric device | |
| NO308980B1 (en) | Device for induction heating | |
| US3363079A (en) | Induction heating | |
| KR100813083B1 (en) | Thermally insulating gastight and vacuum-tight chamber intended for an induction heating device | |
| KR0142908B1 (en) | Protecting device for induction poles and inductor provided with this device | |
| RU2287230C2 (en) | Gas- and vacuum-tight heat-insulated chamber for induction heating device | |
| RU2416064C2 (en) | Heat insulating screen for insulation of electromagnetic inductor, and heat treatment plant containing such screen | |
| US3798489A (en) | Plasma furnace | |
| FI87966B (en) | HAOLLARELEMENT AV GRAFIT FOER UPPVAERMNINGSSTAVAR I INDUSTRIUGNAR | |
| JP5148216B2 (en) | Induction heating device for strips | |
| AU3434502A (en) | Thermally insulating gastight and vacuum-tight chamber intended for an induction heating device | |
| JPH02192592A (en) | Vacuum heat treatment furnace | |
| JP2587327Y2 (en) | Induction heating device inductor | |
| JP4664731B2 (en) | Superconducting coil heat treatment apparatus and heat treatment method | |
| KR100882827B1 (en) | Infrared rays emission apparatus of plate type | |
| KR102453485B1 (en) | Oilless electromagnet for magnetic separator | |
| CN200980177Y (en) | A heating device by main-frequency induction metal short circuit liquid magnetism | |
| JPWO2009011015A1 (en) | High frequency induction heating apparatus and plasma CVD apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060726 |
|
| CX01 | Expiry of patent term |