CN110257596A - A kind of tempering furnace - Google Patents
A kind of tempering furnace Download PDFInfo
- Publication number
- CN110257596A CN110257596A CN201910645327.7A CN201910645327A CN110257596A CN 110257596 A CN110257596 A CN 110257596A CN 201910645327 A CN201910645327 A CN 201910645327A CN 110257596 A CN110257596 A CN 110257596A
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- CN
- China
- Prior art keywords
- furnace
- cooling
- tempering
- flow
- heating
- 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.)
- Pending
Links
- 238000005496 tempering Methods 0.000 title claims abstract description 46
- 238000001816 cooling Methods 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 239000012774 insulation material Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 9
- 238000010791 quenching Methods 0.000 description 9
- 230000000171 quenching effect Effects 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention discloses a kind of tempering furnaces, including outer furnace shell, interior furnace shell in the outer furnace shell is set, thermal insulation material between the outer furnace shell and interior furnace shell is set, the interior furnace shell surrounds furnace chamber, the furnace roller for being used for transmission strip is provided in the furnace chamber, the tempering furnace further includes heating system and cooling system, the heating system includes circulating fan, the heating device that air-flow for generating to the circulating fan is heated, the cooling system includes the cooling manifold being sequentially communicated, cooling blower, the heat exchanger of air-flow is generated for cooling down the cooling blower, the tempering furnace further includes the flow guide system above the air flow guiding to the furnace roller for generating the heating system and cooling system.The heating and rapid cooling to strip in furnace may be implemented in the tempering furnace, and since furnace atmosphere circulates, and the heat transfer efficiency and cooling efficiency of the tempering furnace are all higher.And ensure that strip is uniformly heated up or cools down, improve the straightness of strip.
Description
Technical field
The present invention relates to a kind of tempering furnaces.
Background technique
Strip forms martensitic structure after quenching treatment.Although intensity improves a lot, but plasticity is also significantly
It reduces, not too many practical value.It has to eliminate its quenching stress by a drawing process.After tempered processing, steel
Although the intensity of material decreases, but plasticity improves a lot.Also improve its practical value.So steel band should be stood after quenching
Carry out tempering.
Steel band is heated to hardening heat in high temperature furnace, and then by quenching, (water quenching, oil quenching, lead bath, bismuth bath, hydrogen are quenched
Fire etc.) after, into tempering furnace tempering.Steel band is reheated to tempering temperature in tempering furnace, when running in furnace, disappears
Except quenching stress, improve the performance of strip.
High temp, quenching furnace and tempering furnace form a continuous production line, have obtained certain application.But due to tempering
Furnace equipment is fairly simple, and processing is fairly simple, and thermal efficiency ratio is lower, and treated, and steel quality is relatively low, can only meet general
Requirement.
Summary of the invention
The object of the present invention is to provide a kind of tempering furnaces, and the thermal efficiency is higher, and the steel quality after being processed is higher.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of tempering furnace, including outer furnace shell, be arranged in institute
The thermal insulation material stating the interior furnace shell in outer furnace shell, being arranged between the outer furnace shell and interior furnace shell, the interior furnace shell surround furnace chamber,
Be provided with the furnace roller for being used for transmission strip in the furnace chamber, the tempering furnace further includes heating system and cooling system, it is described plus
Hot systems include the heating device that circulating fan, the air-flow for generating to the circulating fan are heated, the cooling system
It unites including the cooling manifold, cooling blower, the heat exchanger for cooling down the cooling blower generation air-flow being sequentially communicated, it is described
Tempering furnace further includes the water conservancy diversion system above the air flow guiding to the furnace roller for generating the heating system and cooling system
System.
Preferably, the flow guide system is each provided with a set of, two sets of flow guide systems in the two sides up and down of the furnace roller
Air-flow is exported above and below the furnace roller respectively.
It is further preferred that the two sides up and down of the furnace roller be each provided with one group described in it is cooling described in heating system and one group
System.
Preferably, the flow guide system includes several flow-guiding channels, each flow-guiding channel by the circulating fan with
The furnace roller of different location is connected.
Preferably, above or below the circulating fan is arranged in the middle part of the furnace chamber.
It is further preferred that a set of heating system includes two heating devices, two heating devices point
The both ends of the furnace roller transmission direction are not set.
Preferably, the furnace roller is made of graphite.
Preferably, protective gas is provided in the furnace chamber, the protective gas is not sent out with the material in the furnace chamber
Raw reaction.
It is further preferred that the protective gas is nitrogen and/or hydrogen.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages: the tempering furnace can be with
It realizes the heating and rapid cooling to strip in furnace, saves the production time, and since furnace atmosphere circulates, the tempering furnace
Heat transfer efficiency and cooling efficiency it is all higher, and ensure that strip is uniformly heated up or cools down, improve the straightness of strip,
For strip after tempering furnace processing, integral strength difference is smaller.
Detailed description of the invention
Attached drawing 1 is the schematic diagram of internal structure of tempering furnace；
Attached drawing 2 is schematic diagram of internal structure of the tempering furnace in another angle；
Wherein: 1, outer furnace shell；2, interior furnace shell；3, thermal insulation material；4, furnace roller；5, circulating fan；6, flow guide system；7, heating dress
It sets；8, cooling manifold；9, circulation motor；10, furnace chamber.
Specific embodiment
The technical solution of the present invention will be further described below with reference to the accompanying drawings.
Referring to figure 1 and figure 2, the tempering furnace of the present embodiment include outer furnace shell 1, the interior furnace shell being arranged in outer furnace shell 2,
Thermal insulation material 3 between outer furnace shell 1 and interior furnace shell 2 is set, and interior furnace shell 2 surrounds furnace chamber 10, is provided in furnace chamber 10 for passing
The furnace roller 4 of defeated strip.Tempering furnace further includes heating system and cooling system, wherein heating system includes circulating fan 5, is used for
To the heating device 7 that the air-flow that circulating fan 5 generates is heated, heating device 7 can be adding thermal resistance etc..Cooling system packet
Include the cooling manifold 8 being sequentially communicated, cooling blower, the heat exchanger for cooling down the cooling blower generation air-flow, tempering furnace
It further include flow guide system 6 of the air flow guiding for generating heating system and cooling system to 4 top of furnace roller.
When needing to heat the strip in furnace, the gas that circulating fan 5 sucks is transmitted to heating through flow guide system 6
At device 7, gas is transmitted to the top of furnace roller 4 after being heated by heating device 7 and heats to the strip on furnace roller 4, passes through
The gas temperature of heat exchange declines, and is sucked by circulating fan 5, is heated again by heating device 7 again, realizes following for heat exchange
Ring.When needing to cool down the strip in furnace, the cooled blower of hot atmosphere is cooling through over-heat-exchanger after being sucked out in furnace,
Then collector 8 in furnace are discharged to by cooling blower again, are blown by flow guide system 6 at strip, strip are carried out quickly and equal
It is evenly cooling.The heating and rapid cooling to strip in furnace may be implemented in the tempering furnace, and since furnace atmosphere circulates, should
The heat transfer efficiency and cooling efficiency of tempering furnace are all higher, can be competent at the demand of strip tempering after quenching and rapid cooling.
Heating system and cooling system are all to transmit high temperature/low-temperature airflow using flow guide system 6, therefore the structure of the tempering furnace is more tight
It gathers.And the tempering furnace can guarantee that strip is uniformly heated up or cools down, and improve the straightness of strip.Strip is through the tempering furnace
After processing, integral strength difference (logical plate is poor) is less than 25 N/mm2.
As preferred embodiment, flow guide system 6 is each provided with a set of, two sets of water conservancy diversion systems in the two sides up and down of furnace roller 4
System 6 respectively exports air-flow above and below furnace roller 4, therefore the heating and cooling of strip are all more uniformly, improve band
The straightness of steel.In the present embodiment, the two sides up and down of furnace roller 4 are each provided with one group of heating system and cooling system, improve heat
Exchange rate.
Flow guide system 6 includes several flow-guiding channels, and circulating fan is connected by each flow-guiding channel with the furnace roller 4 of different location
Logical, the structure of flow-guiding channel is configured according to the flow behavior and flow trace of fan outlet atmosphere, is guaranteed in flow-guiding channel
Atmosphere press Laminar Flow, without crossfire, reflux.Atmosphere between flow-guiding channel will not interfere with each other, and make the gas of high temperature and high speed
Atmosphere keeps very high kinetic energy.Moreover, the flow and flow rate that atmosphere after flow guide system, is sprayed onto strip upper and lower surface is consistent, make to add
Heat or cooling can be carried out uniformly.It ensure that the stabilization row that strip is run in furnace.It is uniformly heated or cooled and decreases band
The generation of steel internal stress ensure that the straightness of strip.
Circulating fan 5 is arranged in above or below 10 middle part of furnace chamber, guarantees that furnace gases flowing towa taud is uniform.A set of heating system
System includes two heating devices 7, and two heating devices 7 are separately positioned on the both ends of 4 transmission direction of furnace roller, therefore heating efficiency
It is all preferable with homogeneous heating degree.
Tempering furnace also has controller and the temperature sensor for detecting its internal temperature of steel strips, heating system packet
The circulation motor 9 for driving circulating fan 5 to rotate is included, temperature sensor and circulation motor 9 are all connect with controller signals.Control
Device processed can adjust the revolving speed of circulation motor 9 according to the temperature of strip, and then control the flow of heating air-flow, realize to strip
Accurate heating.
As preferred embodiment, furnace roller 4 is made of graphite, reduces its galled spots to strip.
Protective gas is provided in furnace chamber, protective gas does not react with the material in furnace chamber 10, prevents strip from existing
There are carburetting and decarburization when tempering, influences the performance of product.Protective gas can be the mixing of nitrogen or hydrogen or nitrogen and hydrogen
Gas.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of tempering furnace including outer furnace shell, the interior furnace shell being arranged in the outer furnace shell, is arranged in the outer furnace shell and interior furnace
Thermal insulation material between shell, the interior furnace shell surround furnace chamber, the furnace roller for being used for transmission strip, feature are provided in the furnace chamber
Be: the tempering furnace further includes heating system and cooling system, and the heating system includes circulating fan, for following to described
The heating device that the air-flow that ring blower generates is heated, the cooling system includes the cooling manifold being sequentially communicated, cooling wind
Machine, the heat exchanger that air-flow is generated for cooling down the cooling blower, the tempering furnace further include for by the heating system
The flow guide system above air flow guiding to the furnace roller generated with cooling system.
2. tempering furnace according to claim 1, it is characterised in that: the flow guide system is each in the two sides up and down of the furnace roller
It is provided with a set of, two sets of flow guide systems respectively export air-flow above and below the furnace roller.
3. tempering furnace according to claim 2, it is characterised in that: the two sides up and down of the furnace roller are each provided with described in one group
Cooling system described in heating system and one group.
4. tempering furnace according to claim 1, it is characterised in that: the flow guide system includes several flow-guiding channels, each
The circulating fan is connected by the flow-guiding channel with the furnace roller of different location.
5. tempering furnace according to claim 1, it is characterised in that: the circulating fan is arranged in upper in the middle part of the furnace chamber
Side or lower section.
6. tempering furnace according to claim 5, it is characterised in that: a set of heating system includes two heating dresses
It sets, two heating devices are separately positioned on the both ends of the furnace roller transmission direction.
7. tempering furnace according to claim 1, it is characterised in that: the furnace roller is made of graphite.
8. tempering furnace according to claim 1, it is characterised in that: be provided with protective gas, the protection in the furnace chamber
Gas does not react with the material in the furnace chamber.
9. tempering furnace according to claim 8, it is characterised in that: the protective gas is nitrogen and/or hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910645327.7A CN110257596A (en) | 2019-07-17 | 2019-07-17 | A kind of tempering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910645327.7A CN110257596A (en) | 2019-07-17 | 2019-07-17 | A kind of tempering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110257596A true CN110257596A (en) | 2019-09-20 |
Family
ID=67926712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910645327.7A Pending CN110257596A (en) | 2019-07-17 | 2019-07-17 | A kind of tempering furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN110257596A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101437631A (en) * | 2006-07-27 | 2009-05-20 | 杰富意钢铁株式会社 | Cooling device and cooling method for hot strip |
| CN201614390U (en) * | 2010-01-26 | 2010-10-27 | 洛伊热工工程(天津)有限公司 | High-temperature metal coiled material gas quick-ejection enhanced cooling unit |
| CN202297715U (en) * | 2012-02-28 | 2012-07-04 | 南京永亮炉业有限公司 | Steel plate tempering furnace |
| CN103667666A (en) * | 2013-11-29 | 2014-03-26 | 中冶南方(武汉)威仕工业炉有限公司 | Continuous roller-hearth plate type heat treatment furnace and heat treatment method |
| CN104313295A (en) * | 2014-10-27 | 2015-01-28 | 中冶南方(武汉)威仕工业炉有限公司 | Continuous tempering furnace of roller hearth plates and annealing method thereof |
| CN104388662A (en) * | 2014-10-27 | 2015-03-04 | 中冶南方(武汉)威仕工业炉有限公司 | Roller-hearth type plate continuous tempering furnace and tempering method thereof |
| CN109013924A (en) * | 2018-08-16 | 2018-12-18 | 艾伯纳工业炉(太仓)有限公司 | Roller-bottom type aluminum alloy heat forming furnace |
| CN208800681U (en) * | 2018-08-16 | 2019-04-30 | 艾伯纳工业炉(太仓)有限公司 | Roller-bottom type aluminum alloy heat forming furnace |
| CN210367784U (en) * | 2019-07-17 | 2020-04-21 | 艾伯纳工业炉(太仓)有限公司 | Tempering furnace |
-
2019
- 2019-07-17 CN CN201910645327.7A patent/CN110257596A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101437631A (en) * | 2006-07-27 | 2009-05-20 | 杰富意钢铁株式会社 | Cooling device and cooling method for hot strip |
| CN201614390U (en) * | 2010-01-26 | 2010-10-27 | 洛伊热工工程(天津)有限公司 | High-temperature metal coiled material gas quick-ejection enhanced cooling unit |
| CN202297715U (en) * | 2012-02-28 | 2012-07-04 | 南京永亮炉业有限公司 | Steel plate tempering furnace |
| CN103667666A (en) * | 2013-11-29 | 2014-03-26 | 中冶南方(武汉)威仕工业炉有限公司 | Continuous roller-hearth plate type heat treatment furnace and heat treatment method |
| CN104313295A (en) * | 2014-10-27 | 2015-01-28 | 中冶南方(武汉)威仕工业炉有限公司 | Continuous tempering furnace of roller hearth plates and annealing method thereof |
| CN104388662A (en) * | 2014-10-27 | 2015-03-04 | 中冶南方(武汉)威仕工业炉有限公司 | Roller-hearth type plate continuous tempering furnace and tempering method thereof |
| CN109013924A (en) * | 2018-08-16 | 2018-12-18 | 艾伯纳工业炉(太仓)有限公司 | Roller-bottom type aluminum alloy heat forming furnace |
| CN208800681U (en) * | 2018-08-16 | 2019-04-30 | 艾伯纳工业炉(太仓)有限公司 | Roller-bottom type aluminum alloy heat forming furnace |
| CN210367784U (en) * | 2019-07-17 | 2020-04-21 | 艾伯纳工业炉(太仓)有限公司 | Tempering furnace |
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