CN104831053B - A kind of electrical sheet annealing heating method for supporting - Google Patents
A kind of electrical sheet annealing heating method for supporting Download PDFInfo
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- CN104831053B CN104831053B CN201510270536.XA CN201510270536A CN104831053B CN 104831053 B CN104831053 B CN 104831053B CN 201510270536 A CN201510270536 A CN 201510270536A CN 104831053 B CN104831053 B CN 104831053B
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- heater
- support roller
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- 238000000137 annealing Methods 0.000 title claims abstract description 51
- 238000010438 heat treatment Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 81
- 239000010959 steel Substances 0.000 claims abstract description 81
- 238000002791 soaking Methods 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 22
- 229910052742 iron Inorganic materials 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 4
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 239000010703 silicon Substances 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 239000001257 hydrogen Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 229910000976 Electrical steel Inorganic materials 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000005339 levitation Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000007665 sagging Methods 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 3
- 238000005261 decarburization Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910000565 Non-oriented electrical steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
The invention discloses a kind of electrical sheet annealing heating method for supporting, including body of heater (2), have in body of heater (2)：The bringing-up section (3) and soaking zone (4) annealed to steel band；In the support roller (6) of body of heater (2) inner support steel band；The plasma nozzle (5) of gas, supporting steel band is sprayed to steel band；Steel band is departed from support roller (6) in annealing process by plasma nozzle (5) and keep suspension, avoid or mitigate the damage in heating process to support roller (6) or dross, obtain high silicon, the high grade electric steel of high magnetic characteristics (low iron loss, the trade mark are higher) and excellent surface quality.
Description
Technical field
The invention belongs to electrical sheet processing equipment technical field, more particularly to a kind of electrical sheet annealing heating method for supporting.
Background technology
The cold rolling large-scale continuous production of high grade electric steel is by improving the Si of steel, Al content, reducing the impurity of steel
Element, reasonable hot rolling is realized with continuous annealing (high temperature) is provided.The high grade electric steel trade mark is higher, and iron loss is lower.Iron loss drops
Low, it is essential means that cold rolled annealed temperature, which is improved,.
The annealing of cold rolling non-oriented electrical steel is realized in continuous annealing furnace.The function of continuous annealing furnace can be realized
Under reducing atmosphere, by the presence of vapor, carbon formation carbon monoxide, removes unnecessary carbon and high annealing from steel in steel
Temperature realizes desired recrystallization.Realize decarburization and the recrystallization of steel band, the protection of the different piece in continuous annealing furnace
Atmosphere is different with heating-up temperature, and the atmosphere of decarbonized portion is made up of hydrogen, nitrogen and vapor, and dew point is high, temperature is relatively low；Tie again
The protective atmosphere of brilliant part is made up of hydrogen, nitrogen, and dew point is low, temperature is high, and temperature annealing more than 1000 DEG C is desirable to reach
Arrive.
During the present invention is realized, inventor has found that prior art at least has problems with：
Electrical sheet magnetic property is very sensitive to internal stress, and annealing process requires to ensure low internal stress, is this continuous annealing furnace
High-temperature part forbid steel band by slewing rollers cause steel band bend and form stress.That is cold rolling electric continuous annealing is used
Horizontal stove anneal, prior art is to support steel band using support roller in horizontal stove.To prevent support roller (6) to steel band
Damage is caused on surface, there is very high requirement to roll surface.Present support roller is substantially using carbon materials (graphite)
Or ceramics manufacture roller set is contacted with belt steel surface.Because high-silicon electrical steel annealing is needed through too high moisture, hot environment, the table of steel
Face is oxidized, then is reduced under high hydrogen atmosphere, hot conditions, and steel surface is very soft, under the conditions of high temperature and deadweight, is held very much
Easy-adhesion support roller (6) surface manufactured in carbon materials (graphite) or ceramics, makes annealed band surface be badly damaged.
The content of the invention
The technical problems to be solved by the invention are that a kind of floated using plasma gas supports electrical sheet, it is to avoid or reduce
The electrical sheet annealing heating method for supporting of annealed band surface damage.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of electrical sheet annealing heating support
Have in method, including body of heater, the body of heater：
The bringing-up section and soaking zone annealed to steel band；
In the support roller of body of heater inner support steel band；
The plasma nozzle of gas, supporting steel band is sprayed to steel band；
Annealing heating process comprises the following steps：
1) it is heated to annealing temperature between steel band bringing-up section in the lehr and soaking zone and is incubated；
2) steel band enters the cooling section of body of heater after, is cooled to room temperature；
3) during strip anneal, plasma nozzle makes the steel band of annealing portion depart from support to steel band blowing gas
The support of roller, separates and suspends with support roller.
The bringing-up section and equal hot junction are by setting partition wall to separate.
The support roller is uniformly distributed in body of heater.
The plasma nozzle has two, is separately positioned on bringing-up section and soaking zone.
The support roller has two, is exported respectively positioned at bringing-up section and body of heater.
The plasma nozzle has two, between the soaking zone, two support rollers positioned at body of heater.
In the 3rd step, gas is passed through into plasma nozzle, gas is heated up in plasma nozzle, and volume is expanded,
The plasma of expansion sprays from higher ion nozzle, sprays to the lower section for the steel band for needing to anneal, and forms an air cushion, holds steel
Band, makes steel band separate and suspend with support roller.
A technical scheme in above-mentioned technical proposal has the following advantages that or beneficial effect, utilizes the neutrality of plasma
Property and high-temperature volume expansion, by the Bernoulli effect of high temperature fluid so that in the steel band of annealing process, can be in no roller
Road supports or because the support of gas causes steel band to reduce the pressure of roller-way, reduces support roller high temperature, the loss of high humility
And dross so that steel band can anneal at a temperature of higher than usual steel band.
Under the conditions of same quality coil of strip metallurgical quality, it is possible to increase annealing is high, and making the iron loss of electrical sheet reduces.
1) under the conditions of same quality coil of strip metallurgical quality, the electrical sheet of the higher trade mark (iron loss is lower) is resulted in；
2) due to the suspension of steel band, it is to avoid or mitigate the damage in heating process to support roller or dross, obtain high magnetic
High silicon, the high grade electric steel of energy (low iron loss, the trade mark are higher) and excellent surface quality.
Brief description of the drawings
Fig. 1 is the structural representation of the electrical sheet annealing heating support meanss provided in the embodiment of the present invention one；
Fig. 2 is the structural representation of the electrical sheet annealing heating support meanss provided in the embodiment of the present invention two；
Fig. 3 is the first embodiment structural representation of Fig. 1 plasma nozzle；
Fig. 4 is second of embodiment structural representation of Fig. 1 plasma nozzle；
Fig. 5 is the third embodiment structural representation of Fig. 1 plasma nozzle；
Mark in above-mentioned figure is：1st, steel band, 2, body of heater, 3, bringing-up section, 4, soaking zone, 5, plasma nozzle, 6, branch
Support roller, 7, partition wall.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
Referring to Fig. 1, cold-rolled strip is heated to annealing temperature between the bringing-up section 3 and soaking zone 4 in silicon steel continuous annealing furnace
Spend and held for some time enters subsequent cooling section, room temperature is arrived after cooling.Length of the steel band in horizontal annealing furnace is very
Long, under the fixation of entrance and exit support roller 6, the steel band of horizontality will be sagging due to the effect of gravity.Sag of chain and two
It is individual to support that the distance of point, tension force are relevant with weight.With plasma injection levitation device as support, the pendency of strip is reduced
Amount.The quantity of plasma injection levitation device produces flow, the pressure of gas according to furnace superintendent, plasma injection levitation device
Set with desired sag of chain.
Prevent steel band in high temperature as protective atmosphere using the mixture of hydrogen and nitrogen in cold rolled silicon steel annealing furnace
Oxidation.If steel band needs to contain a small amount of water (steam) in decarburization, gas mixture.800 DEG C of the general ＞ of furnace temperature.In order to increase
In the reduction of soaking zone 4, partition wall 7 is set between bringing-up section 3 and soaking zone 4, the gas for reducing bringing-up section 3 is protected with soaking zone 4
Protect the convection current of gas.
Hydrogen or nitrogen or argon gas, are initially pre-heated to certain temperature by the waste gas of annealing furnace, then pass to plasma spray
Mouth 5.High-temperature plasma is raised to ＞ more than 950 DEG C from room temperature, and huge expansion occurs for volume, the plasma (neutrality) of expansion from
Plasma nozzle 5 sprays, and sprays to the lower section for the steel band for needing to anneal, and forms an air cushion, holds what is caused due to steel band gravity
It is sagging.So in the lehr, in protective gas, contactless object completes annealing to steel band.
Because steel band is annealed under conditions of being contacted without object, annealing temperature is high, and the electrical sheet iron loss after annealing is low, property
Can be high, surface quality is high.
Because steel band is annealed under conditions of being contacted without object, it is to avoid support roller 6 is caused when environment temperature is high
High-temperature oxydation, wear damage.Without support roller 6, it is to avoid due to the surface deterioration of support roller 6, under causing steel strip surface quality significantly
Drop.
Embodiment two
Referring to Fig. 2, cold-rolled strip is heated to annealing temperature between the bringing-up section 3 and soaking zone 4 in silicon steel continuous annealing furnace
Spend and held for some time enters subsequent cooling section, room temperature is arrived after cooling.Length of the steel band in horizontal annealing furnace is very
It is long, it is mounted with effect of the steel band of horizontality between support roller 6, support roller 6 due to gravity by under in entrance, middle and outlet
Hang down.While steel band weight is that steel band is sagging simultaneously, certain pressure is formed to support roller 6.To the size of the pressure of support roller 6,
It is relevant with the distance between thickness of strips, support roller 6, tension force.With plasma injection levitation device as Auxiliary support, reduce
The overhang of strip, reduce pressure to support roller 6.Plasma injection levitation device is arranged between two support rollers 6.
Prevent steel band in high temperature as protective atmosphere using the mixture of hydrogen and nitrogen in cold rolled silicon steel annealing furnace
Oxidation.If steel band needs to contain a small amount of water (steam) in decarburization, gas mixture.800 DEG C of the general ＞ of furnace temperature.In order to increase
In the reduction of soaking zone 4, partition wall 7 is set between bringing-up section 3 and soaking zone 4, the gas for reducing bringing-up section 3 is protected with soaking zone 4
Protect the convection current of gas.
Hydrogen or nitrogen or argon gas, are initially pre-heated to certain temperature by the waste gas of annealing furnace, then pass to plasma spray
Mouth 5.High-temperature plasma is raised to ＞ more than 950 DEG C from room temperature, and huge expansion occurs for volume, the plasma (neutrality) of expansion from
Plasma nozzle 5 sprays, and sprays to the lower section for the steel band for needing to anneal, and forms an air cushion, holds what is caused due to steel band gravity
It is sagging.So in the lehr, in protective gas, contactless object completes annealing to steel band.
Because steel band is annealed under conditions of being contacted without object, annealing temperature is high, and the electrical sheet iron loss after annealing is low, property
Can be high, surface quality is high.
Because steel band is annealed under conditions of being contacted without object, it is to avoid support roller 6 is caused when environment temperature is high
High-temperature oxydation, wear damage.Without support roller 6, it is to avoid due to the surface deterioration of support roller 6, under causing steel strip surface quality significantly
Drop.
As shown in figure 3, be the first embodiment structural representation of plasma nozzle 5, including support base and electrode bar；
Support base is fixedly connected with drop-bottom and insulated with drop-bottom, and cavity is provided with support base；
Electrode bar is stretched into the cavity of support base；
Support base upper surface is provided with the outlet for being available for that gas sprays in support base cavity, and the upper surface of support base is electrical sheet
Supporting surface；Support base lower end provided with can supplied gas out of stove enter cavity import；
Power supply is by circuit connection electrode rod and support base, and the support seating portion being connected with circuit is conductive material.
Support base is formed by connecting by the seat of honour and lower seat, and the seat of honour is conductive material, and lower seat is insulating materials.
It is provided with the seat of honour in upper cavity, lower seat and is provided with lower chamber；Upper cavity is hemispherical；Import is arranged on lower seat, is gone out
Mouth is arranged on the seat of honour.
Electrode bar upper end is ball-type and stretched into upper cavity.
Enter cavity by import out of stove is protective gas in stove, is hydrogen/nitrogen.
The seat of honour and lower seat are cylinder.
Contact rod is stretched into stove outside stove, and power supply is located at outside stove and is connected with electrode bar stove outer portion；The seat of honour is provided with and led
Torch, power supply is connected by circuit with contact rod.
By setting an electric heating chamber.In electric heating chamber, by gas medium under the heating of heavy current, gas temperature
Degree is improved, and forms plasma flow.At this moment plasma gas volume ratio expands many times, after volumetric expansion at room temperature
Gas is ejected into operating steel band by outlet, is formed and steel band is supported.
As shown in figure 4, being second of embodiment structural representation of plasma nozzle 5, have：
Air-flow slowing device, it is connected on the drop-bottom in stove, and the upper surface of air-flow slowing device is provided with gas vent,
And upper surface is used as the supporting surface of electrical sheet；
Plasma cabinet, it is internal with cavity, and plasma cabinet is provided with the opening connected with cavity, and opening slows down with air-flow
Device is connected；
Electrode bar, it is stretched into the cavity of plasma cabinet；
Electric supply installation, including power supply, power supply is by circuit connection electrode rod and plasma cabinet, and plasma cabinet is conduction material
Matter, electrode bar constitutes sparking electrode with plasma cabinet；
Inlet duct, it is passed through gas by pipeline into the cavity of plasma cabinet.
Air-flow slowing device is nozzle, and the diameter of the shower nozzle of nozzle is more than the air inlet diameter of nozzle.
As shown in figure 5, being the third embodiment structural representation of plasma nozzle 5, air-flow slowing device is literary mound
In manage, the upper surface of Venturi tube is provided with exhaust outlet, and upper surface is used as the supporting surface of electrical sheet.
The necking part of Venturi tube is provided with the air admission hole with being connected in stove.
The cavity top of plasma is hemispherical；Electrode bar upper end is ball-type.
The gas being passed through in the cavity of plasma cabinet is hydrogen/nitrogen/argon gas.
Plasma is cylinder.
Plasma one end open, and close open end provided with bottom plate；Bottom plate is isolation material, and electrode bar is stretched through bottom plate
In the cavity for entering plasma cabinet.
After above-mentioned scheme, by setting an electric heating chamber.In electric heating chamber, by gas medium in forceful electric power
Under the heating of stream, gas temperature is improved, and forms plasma flow.At this moment plasma gas volume ratio expands very at room temperature
Many times, the gas after volumetric expansion is ejected into operating steel band by plasma cabinet and gas slowing device, is formed to steel
Band support.
Using the neutral property and high-temperature volume expansion of plasma, by the Bernoulli effect of high temperature fluid so that
The steel band of annealing process, can support without roller-way or because the support of gas causes steel band to reduce the pressure of roller-way, subtract
The high temperature of support roller 6, the loss of high humility and dross are lacked so that steel band can anneal at a temperature of higher than usual steel band.
Under the conditions of same quality coil of strip metallurgical quality, it is possible to increase annealing is high, and making the iron loss of electrical sheet reduces.
Under the conditions of 1 same quality coil of strip metallurgical quality, the lower electrical sheet of higher trade mark iron loss is resulted in；
2 due to the suspension of steel band, it is to avoid or mitigate the damage in heating process to support roller 6 or dross, obtain high magnetic
Can low iron loss, higher and excellent surface quality the high silicon of the trade mark, high grade electric steel.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (5)
1. a kind of electrical sheet annealing heating method for supporting, including body of heater (2), it is characterised in that have in the body of heater (2)：
The bringing-up section (3) and soaking zone (4) annealed to steel band；
In the support roller (6) of body of heater (2) inner support steel band；
The plasma nozzle (5) of gas, supporting steel band is sprayed to steel band；
Annealing heating process comprises the following steps：
1) it is heated to annealing temperature between steel band bringing-up section (3) in the lehr and soaking zone (4) and is incubated；
2) steel band enters the cooling section of body of heater (2) after, is cooled to room temperature；
3) during strip anneal, plasma nozzle (5) makes the steel band of annealing portion depart from support roller to steel band blowing gas
(6) support, separates and suspends with support roller (6)；
The bringing-up section (3) and equal hot junction are by setting partition wall (7) to separate；
The plasma nozzle (5) has two, is separately positioned on bringing-up section (3) and soaking zone (4)；
Plasma nozzle has：
Air-flow slowing device, it is connected on the drop-bottom in stove, and the upper surface of air-flow slowing device is provided with gas vent, and
Upper surface as electrical sheet supporting surface；
Plasma cabinet, it is internal with cavity, and plasma cabinet is provided with the opening connected with cavity, opening and air-flow slowing device
Connection；
Electrode bar, it is stretched into the cavity of plasma cabinet；
Electric supply installation, including power supply, power supply is by circuit connection electrode rod and plasma cabinet, and plasma cabinet is conductive material, electricity
Pole rod constitutes sparking electrode with plasma cabinet；
Inlet duct, it is passed through gas by pipeline into the cavity of plasma cabinet；
Air-flow slowing device is Venturi tube, and the upper surface of Venturi tube is provided with exhaust outlet, and upper surface is used as electrical sheet
Supporting surface.
2. electrical sheet annealing heating method for supporting as claimed in claim 1, it is characterised in that the support roller (6) is in body of heater
(2) it is uniformly distributed in.
3. electrical sheet annealing heating method for supporting as claimed in claim 1, it is characterised in that the support roller (6) has two,
It is located at bringing-up section (3) respectively and body of heater (2) is exported.
4. electrical sheet annealing heating method for supporting as claimed in claim 3, it is characterised in that the plasma nozzle (5) has
Two, between the soaking zone (4), two support rollers (6) positioned at body of heater (2).
5. electrical sheet annealing heating method for supporting as claimed in claim 1, it is characterised in that in the 3rd step, to plasma spray
Be passed through gas in mouth (5), gas heats up in plasma nozzle (5), volume is expanded, the plasma of expansion from it is high from
Sub- nozzle (5) sprays, and sprays to the lower section for the steel band for needing to anneal, and forms an air cushion, holds steel band, make steel band and support roller
(6) separate and suspend.
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| CN201510270536.XA CN104831053B (en) | 2015-05-25 | 2015-05-25 | A kind of electrical sheet annealing heating method for supporting |
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| CN105039675A (en) * | 2015-08-27 | 2015-11-11 | 苏州中门子科技有限公司 | Air cushion furnace with V-shaped roller supporting device and application of air cushion furnace |
| CN116550822B (en) * | 2023-05-12 | 2023-09-26 | 山东力军建设工程有限公司 | Hollow steel pipe bending mechanism |
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| CN102070039A (en) * | 2010-11-29 | 2011-05-25 | 苏州中门子科技有限公司 | Deviation correcting device for belt materials in air-cushion suspension transmission process |
| CA2829532A1 (en) * | 2012-10-19 | 2014-04-19 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Apparatus and method for continuously treating metal strip |
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2015
- 2015-05-25 CN CN201510270536.XA patent/CN104831053B/en active Active
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|---|---|---|---|---|
| CN1309758A (en) * | 1998-06-18 | 2001-08-22 | 罗斯空气设备公司 | Convertible apparatus for heat treating materials |
| CN201065425Y (en) * | 2007-07-19 | 2008-05-28 | 鞍钢股份有限公司 | A device for suspending steel strip in continuous annealing furnace |
| CN101185944A (en) * | 2007-12-27 | 2008-05-28 | 山西太钢不锈钢股份有限公司 | Method for preventing hot rolling stainless steel band from rolling cuts and device thereof |
| JP2010163634A (en) * | 2009-01-13 | 2010-07-29 | Chugai Ro Co Ltd | Apparatus for treating strip material |
| CN101993993A (en) * | 2010-11-29 | 2011-03-30 | 苏州中门子科技有限公司 | Air cushion box on belt material heat treatment equipment |
| CN102002578A (en) * | 2010-11-29 | 2011-04-06 | 苏州中门子科技有限公司 | Air cushion suspension generating device of air cushion furnace |
| CN102070039A (en) * | 2010-11-29 | 2011-05-25 | 苏州中门子科技有限公司 | Deviation correcting device for belt materials in air-cushion suspension transmission process |
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