CN109963952A - Annealing device - Google Patents
Annealing device Download PDFInfo
- Publication number
- CN109963952A CN109963952A CN201780068621.5A CN201780068621A CN109963952A CN 109963952 A CN109963952 A CN 109963952A CN 201780068621 A CN201780068621 A CN 201780068621A CN 109963952 A CN109963952 A CN 109963952A
- Authority
- CN
- China
- Prior art keywords
- trolley
- heat
- annealing device
- treatment furnace
- ontology
- 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
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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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
-
- 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
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
-
- 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
- C21D9/68—Furnace coilers; Hot coilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/12—Travelling or movable supports or containers for the charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/02—Supplying steam, vapour, gases, or liquids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention provides a kind of annealing device for improving operability, comprising: heat-treatment furnace, equipped with the annealing device cooled and heated for selectively executing furnace interior by single structure；And heat treatment trolley, including being equipped with the trolley ontology of mobile device can pass in and out inside the heat-treatment furnace.
Description
Technical field
The present invention relates to the annealing devices that one kind is heat-treated material, such as roll bending to be processed and other items.
Background technique
Heat processing apparatus of batch type commonly used in the one or more materials to be processed of heat treatment passes through patent document 1 etc.
Document and it is well-known.This heat processing apparatus of batch type is being packed into material to be processed, such as is packed into after roll bending, covers inner cover,
And the heating cover for heating when its outer surface covers and heats, heating cover is removed when needing cooling, and cover cooling lid
Execute cooling.
This annealing device can be manufactured into small size, therefore it is a small amount of to can be used for 10,000 tons/year of equal needs
On a small amount of product of heat treatment, still, the technique for heating and cooling down is extremely complex, so that operability reduces.
In particular, needing to purge used all burning gases when (purge) heating, so when needing cooling after the heating
It covers cooling lid again afterwards to be cooled down, and removes internal inner cover after removing cooling lid and take out roll bending, therefore compare
It is cumbersome.
Existing technical literature
(patent document 1) US2010-138616A
Summary of the invention
(1) technical problems to be solved
The present invention is to propose in order to solve problems in the prior art, and its purpose is to provide a kind of improvement operability
Annealing device.
(2) technical solution
The present invention provides a kind of annealing device to realize purpose as described above, comprising: heat-treatment furnace is equipped with logical
Cross the annealing device cooled and heated that single structure selectively executes furnace interior；And heat treatment trolley, including set
There is the trolley ontology of mobile device can pass in and out inside the heat-treatment furnace.
In addition, in one embodiment of the invention, the trolley may include: inner cover, is formed and configure material to be processed
Inner space；And feed tube, it is connected to the trolley ontology and atmosphere gas supply department, and be configured to a lateral edge
The trolley ontology move together, the inner cover, the trolley ontology can be placed in the upper surface of the trolley ontology
It is configured to be connected to the inner space with the atmosphere gas supply department.
At this point, the feed tube may be coupled to the lower part of the trolley ontology, the mobile device can also connect
It is connected to the driving device for configuring the lateral direction of heat-treatment furnace in the trolley ontology.
In one embodiment of the invention, the annealing device may be configured to supply to burner when heated
Air and fuel, to heat the inner cover, only supply air to burn while cooling.
In one embodiment of the invention, the trolley can be only fitted to pit top, and the feed tube can be with
Configuration is in pit, and the lower part of the inner space formed in the trolley by the inner cover can be configured in lower part
Heat the electric heater of material to be processed.
In addition, can connect the power supply supply of the oriented electric heater supply power supply in the lower part of the trolley ontology
Line, the power supply line can be connected to mobile pallet together with the feed tube, thus the power supply line
Side is moved together according to the moving for trolley.
In one embodiment of the invention, the pit can be formed along the moving direction of trolley, and the gas supplies
Should manage the inside that pit can be fixed on the other side of power supply line, the mobile pallet may include be flexible to it is predetermined
The flexible duct of curvature can also include the rail for being located at the lower part of the mobile pallet and guiding the movement of the mobile pallet
Road.
In addition, in one embodiment of the invention, the trolley ontology may include: sealing groove portion, with the inner cover
Connection is with sealed inner；Placement section places the door of heat-treatment furnace；And protruding portion, it is compared on the direction of heat-treatment furnace
The placement section is located at more lateral, and more prominent compared to the placement section, to seal the heat-treatment furnace, institute when the door is closed
Stating mobile device may be coupled to driving device, in the trolley ontology, lateral direction of the driving device in heat-treatment furnace
It is upper to configure compared to the protruding portion in more lateral.
In one embodiment of the invention, the heat-treatment furnace can be heated or cooled the material to be processed and have
Fixed structure, and may include: door, configuration is in side so that the trolley can pass in and out；And outlet, positioned at door
The other side and the gas that inflow is discharged.
(3) beneficial effect
The present invention can carry out heat by the trolley of the heat-treatment furnace and the heat-treatment furnace that can retreat that can heat/cool down
Processing, and additional heating cover/cooling lid is not needed, so as to improve operating efficiency.
Detailed description of the invention
Fig. 1 is the plan view for schematically illustrating one embodiment of annealing device of the invention.
Fig. 2 is the main view for schematically illustrating one embodiment of annealing device of the invention.
Fig. 3 is the side view for schematically illustrating one embodiment of annealing device of the invention.
Fig. 4 is the air blast schematic diagram of one embodiment of annealing device of the invention.
Description of symbols
1: annealing device 10: heat-treatment furnace
20: door 30: service duct
40: materials for support portion 50 to be processed: trolley
59: driving device 70: inner cover
Specific embodiment
In the following, being mainly illustrated to specific embodiments of the present invention referring to attached drawing.
In following explanation of the invention, the term of component of the invention allows for the function of various components and names
, therefore the meaning for the technology component that should not be construed as limiting the invention.
Also, throughout the specification, certain component not only indicates the component " being directly connected to " with other assemblies " connection "
The case where, and the case where be also represented by through other assemblies " being indirectly connected with ".In addition, unless there are especially opposite record, " packet
Including " certain component indicates can also to include other assemblies, rather than exclude other assemblies.
Fig. 1 to Fig. 3 shows one embodiment of annealing device of the invention.Specifically, Fig. 1 schematically illustrates an implementation
The plan view of example, Fig. 2 schematically illustrate the main view of one embodiment, and Fig. 3 schematically illustrates the side view of one embodiment.
As shown in Figure 1 to Figure 3, the annealing device 1 of one embodiment of the present of invention includes heat-treatment furnace 10 and can retreat
The trolley 50 of the heat-treatment furnace 10.
The heat-treatment furnace 10 of annealing device 1 is formed with the space that the trolley 50 can be made to enter, and matches on side wall
It is equipped with multiple annealing device 11-14.In the described embodiment, annealing device 11-14 has that 4 burners are intersected with each other matches
The structure in the side of heat-treatment furnace 10 is set, but the quantity of annealing device, position can be properly selected.
Heat-treatment furnace 10 is formed with door 20 in the side that trolley 50 passes in and out, and is formed with outlet in the other side of door
15.Outlet 15 is connect with blower device 17 (referring to Fig. 4), and will be supplied to the gas (fuel/sky inside heat-treatment furnace 10
Gas or oxygen) and exhaust gas be discharged to the outside.
When the trolley 50 enters, the door 20 drops to the placement section 53 of the trolley 50, and with the trolley
50 protruding portion 54 cooperates inner space and outside to block heat-treatment furnace 10.
On the other hand, the trolley 50 of the heat-treatment furnace 10 of can retreating includes: driving device 59；And mobile device 61,
It is connect by power transmission member 60 with the driving device 59, the trolley 50 can be moved by the driving force of driving device 59
It moves internal or external to the heat-treatment furnace 10.In the present embodiment, driving device 59 is realized by motor, power transmission member
60 are realized by gear and chain, and mobile device 61 is realized by the wheel configured in trolley lower part, still, as long as can make platform
Vehicle 50 is mobile, then can also use other assemblies.
Trolley 50 includes the trolley ontology 51 into inside heat-treatment furnace 10, is formed in the upper surface of the trolley ontology 51
Have by connecting with inner cover 70 come the sealing groove portion 52 of 70 inner space of inner sealing lid.Enter heat-treatment furnace 10 in trolley ontology 51
Internal part is formed by refractory material.
On the basis of the sealing groove portion 52, the door for placing heat-treatment furnace 10 is provided in 10 lateral direction of heat-treatment furnace
20 placement section 53 is provided with protruding portion 54 in the rear side of the placement section 53, and the protruding portion 54 compares the placement section 53
It is more prominent, and when the door 20 is placed on placement section 53, it is sealed inside heat-treatment furnace 10 together with door 20.Driving device support
Portion 58 is configured compared to protruding portion 54 in more lateral in the lateral direction of heat-treatment furnace 10, and in the driving device support portion
58 place the driving device 59.
The central portion that groove portion 52 is sealed in trolley ontology 51 is formed with service duct 30, the service duct 30 and gas
Supply pipe 38a connection, and atmosphere gas is supplied to the inner space.The service duct 30 is connected to the supply pipe of lower part
31 and feed tube 38a, and the feed tube 38a is connected to fixed part 37, thus from the fixed part is connected to
The gas that 37 atmosphere gas supply department 111 supplies can be supplied to the inner space.The atmosphere gas supply department 111 can
Hydrogen and/or nitrogen to be provided as atmosphere gas.
In addition, though being not shown, but it is formed together discharge pipe with supply pipe 31 in the service duct 30, arranged
Outlet pipe is connected to gas outlet pipe 38b, fixed part 37 and discharge unit 110, so as to which the gas of the inner space to be discharged
To outside.
In this embodiment, support is configured in the inner space formed by the inner cover 70 as roll bending C wait locate
Manage the materials for support portion 40 to be processed of material.The support portion 40 includes: bottom plate, and upper surface is placed with roll bending C；And brick support
Portion, in the bottom plate lower support bottom plate.At this point, brick support portion can by from center with the outer of radiated entend to the bottom plate
Multiple bricks of side end are constituted.
In addition, configuration can directly heat the electric heater of the roll bending C in lower part in materials for support portion 40 to be processed
41.Electric heater 41 configures multiple between the brick support portion extended to radial direction.
On the other hand, the electric heater 41 is being moved by configuring together with the feed tube/discharge pipe 38a, 38b
The power supply line 39 of dynamic pallet 35 is connected to power supply 112.The electric wire connected by power supply line 39 is by supply pipe 31
It is connected to each electric heater 41.
As shown in figure 3, mobile pallet 35 includes flexible duct 36, the flexible duct 36 is configured in inside includes electric wire
Power supply line 39 and feed tube/discharge pipe 38a, 38b for being formed of flexible gas pipe by gas can be made to pass in and out.Soft
It is configured with thermocouple cable together with the power supply line 39 and feed tube/discharge pipe 38a, 38b in property pipeline 36, institute
It states thermocouple cable and is connected to the thermocouple configured towards the inner space.
Mobile pallet 35 includes: mobile end, trolley 50 is connected to, to move together with trolley 50；And fixed end,
It is connected to the fixed part 37 connecting with power supply 112, atmosphere gas supply department 111 and discharge unit 110, under mobile pallet 35
Track 45 of the portion configured with the movement for guiding mobile pallet.
As shown in Fig. 2, the mobile pallet 35 can match according to the moving direction along trolley 50 with the movement of trolley 50
The bending of track 45 or expansion set.
In one embodiment of the present of invention, trolley 50 is mobile on pit top.Pit 100 is the width direction from trolley 50
The cavity that center is formed along the moving direction of trolley, and configured with the supply pipe 31 and connection extended from the downside of trolley 50
To the mobile pallet 35 of supply pipe 31.
Fig. 4 shows the air blast schematic diagram of one embodiment of the present of invention.As shown in figure 4, in one embodiment of the present of invention,
Air blower 16 is connected to the burner as each annealing device 11~14.
By air blower 16 to the burner supply air as annealing device 11-14 in the embodiment, and
Air and fuel (burning gases) are supplied to burn to the burner when heating, thus increase the temperature of furnace interior,
And heat the material to be processed inside inner cover 70 and inner cover 70.
When being cooled down after completing heating, the fuel for being supplied to burner is blocked, but is supplied by air blower 16
Air be constantly provided.The i.e. described annealing device 11-14, which acts not only as heating device, to be come using but also can making
For cooling device come using.It therefore, there is no need to as replaced heating cover or cooling lid in the prior art, and can be in heat-treatment furnace 10
In be performed simultaneously heating and cooling.For example, to roll bending C is that electric steel plate roll bending is heat-treated, even if heating
When rise in 1300 DEG C of furnace interior, also can use single equipment and execute from cooling technique is heated to, may be not present cold
But the endurance issues of mechanism, and do not need replacement equipment.
In addition, igniter is not used to light a fire to the burner to prevent the quick-fried of the hydrogen as atmosphere gas
It is fried, but for the unburned hydrogen that burns, the igniter be configured to from start to it is cooling until be constantly in fired state
Structure.
Therefore, when being heat-treated by annealing device 1 according to an embodiment of the invention to roll bending C, Xiang Ran
Burner supplies fuel and air together to be heated in heat-treatment furnace, and keeps the predetermined time at the desired temperature
Afterwards, air is only supplied without supplying fuel, and is cooled down in heat-treatment furnace, so as to needed for required temperature heating
Time.
In addition, separate the inside of heat-treatment furnace 10 with the inner space for being configured with roll bending C by inner cover 70, therefore can be with
It is heat-treated under required atmosphere gas without being influenced by burner.
Also, according to the annealing device of one embodiment 1 in addition to configuring the annealing device 11-14 outside inner cover 70
It in addition, further include the electric heater 41 for configuring the downside of the roll bending C in 70 inside of inner cover, so as to centered on roll bending C
Heat is supplied to all directions.Therefore, during heating treatment, roll bending C can keep lesser internal difference in temperature, and can be accurately
Heat treatment needed for executing, so as to improve the quality of roll bending.
Claims (13)
1. a kind of annealing device, comprising:
Heat-treatment furnace, equipped with the annealing device cooled and heated for selectively executing furnace interior by single structure；And
Heat treatment trolley, including being equipped with the trolley ontology of mobile device can pass in and out inside the heat-treatment furnace.
2. annealing device according to claim 1, which is characterized in that
The trolley includes:
Inner cover forms the inner space for configuring material to be processed；And
Feed tube is connected to the trolley ontology and atmosphere gas supply department, and is configured to side along the trolley
Ontology moves together,
It is placed with the inner cover in the upper surface of the trolley ontology, the trolley ontology is configured to make the inner space and institute
State the connection of atmosphere gas supply department.
3. annealing device according to claim 2, which is characterized in that
The feed tube is connected to the lower part of the trolley ontology.
4. annealing device according to claim 1, which is characterized in that
The mobile device is connected to the driving device for configuring the lateral direction of heat-treatment furnace in the trolley ontology.
5. annealing device as claimed in claim 2, which is characterized in that
The annealing device is configured to supply air and fuel to burn, to heat institute to burner when heated
Inner cover is stated, only supplies air while cooling.
6. annealing device as claimed in claim 3, which is characterized in that
The trolley configuration is on pit top, and the feed tube configuration is in pit.
7. annealing device as claimed in claim 6, which is characterized in that
The lower part of the inner space formed in the trolley by the inner cover, which is configured with, heats material to be processed in lower part
Electric heater.
8. annealing device as claimed in claim 7, which is characterized in that
The power supply line of the oriented electric heater supply power supply, the power supply supply are connected in the lower part of the trolley ontology
Line is connected to mobile pallet together with the feed tube, thus shifting of the side of the power supply line according to the trolley
It moves and moves together.
9. annealing device according to any one of claims 8, which is characterized in that
The pit is formed along the moving direction of trolley,
The other side of the feed tube and power supply line is fixed on the inside of pit,
The mobile pallet includes the flexible duct for being flexible to predetermined curvature,
It further include the track for being located at the lower part of the mobile pallet and guiding the movement of the mobile pallet.
10. annealing device as claimed in claim 2, which is characterized in that
The trolley ontology includes:
Groove portion is sealed, is connect with the inner cover with sealed inner；
Placement section places the door of heat-treatment furnace；And
Protruding portion is located at more lateral compared to the placement section on the direction of heat-treatment furnace, and more prominent compared to the placement section
Out, to seal the heat-treatment furnace when the door is closed.
11. annealing device described in any one of claim 10, which is characterized in that
The mobile device is connected to driving device, and in the trolley ontology, the driving device is in the outside of heat-treatment furnace
It is configured compared to the protruding portion in more lateral on direction.
12. annealing device described in any one of claims 1 to 11, which is characterized in that
The heat-treatment furnace is heated or cooled the material to be processed and has fixed structure, and includes: door, configures one
Side is so that the trolley passes in and out；And outlet, positioned at door the other side and the gas of inflow is discharged.
13. a kind of annealing device, comprising:
Heat-treatment furnace, the annealing device equipped with inside heating furnace；And
Heat treatment trolley, including inner cover, trolley ontology and feed tube, the inner cover have the inside of configuration roll bending empty
Between, it is placed with the inner cover on the trolley ontology, and be configured to the inner space and be connected to atmosphere gas supply department, and
And be equipped with and can pass in and out mobile device inside the heat-treatment furnace, the feed tube is connected to the trolley ontology and described
Atmosphere gas supply department, and the mobile pallet of an at least lateral edge moves together.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0177144 | 2016-12-22 | ||
| KR1020160177144A KR101867730B1 (en) | 2016-12-22 | 2016-12-22 | Heat Treatment Device |
| PCT/KR2017/013713 WO2018117458A1 (en) | 2016-12-22 | 2017-11-28 | Heat treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109963952A true CN109963952A (en) | 2019-07-02 |
Family
ID=62626559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780068621.5A Pending CN109963952A (en) | 2016-12-22 | 2017-11-28 | Annealing device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2020514656A (en) |
| KR (1) | KR101867730B1 (en) |
| CN (1) | CN109963952A (en) |
| WO (1) | WO2018117458A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08209251A (en) * | 1995-02-02 | 1996-08-13 | Nisshin Steel Co Ltd | Method for continuous heating of steel strip by vertical type direct heating furnace |
| CN2521566Y (en) * | 2001-08-30 | 2002-11-20 | 刘启锐 | Single (double)-row tunnel type on-line gas protection casing continuous annealing furnace |
| CN202786362U (en) * | 2012-06-27 | 2013-03-13 | 艾伯纳工业炉(太仓)有限公司 | HITT (high temperature and tight) single-coil stacking hood-type annealing furnace for thermal treatment of orientated electrical steel |
| CN103557705A (en) * | 2013-11-22 | 2014-02-05 | 苏州新长光热能科技有限公司 | Aluminum slab ingot pit type heating furnace with soaking function |
| CN106086385A (en) * | 2016-08-17 | 2016-11-09 | 包头市威丰稀土电磁材料股份有限公司 | The bell furnace atmosphere tubing that can move with stove car |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3212391B2 (en) * | 1992-11-24 | 2001-09-25 | 旭テック株式会社 | Heat treatment furnace |
| JPH06174377A (en) * | 1992-12-04 | 1994-06-24 | Komatsu Ltd | Multipurpose controlled atmosphere heat treatment equipment |
| JPH06330184A (en) * | 1993-05-21 | 1994-11-29 | Kawasaki Steel Corp | Heat treatment equipment |
| JP2013204113A (en) * | 2012-03-29 | 2013-10-07 | Jfe Steel Corp | Heat treatment equipment for steel sheet coil |
| KR101559041B1 (en) * | 2013-11-01 | 2015-10-19 | 주식회사 포스코 | Heat treatment appapratus for annealing |
| KR101621047B1 (en) * | 2013-12-24 | 2016-05-16 | 주식회사 포스코 | Heat treatment apparatus for coil |
-
2016
- 2016-12-22 KR KR1020160177144A patent/KR101867730B1/en active IP Right Grant
-
2017
- 2017-11-28 CN CN201780068621.5A patent/CN109963952A/en active Pending
- 2017-11-28 JP JP2019532984A patent/JP2020514656A/en active Pending
- 2017-11-28 WO PCT/KR2017/013713 patent/WO2018117458A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08209251A (en) * | 1995-02-02 | 1996-08-13 | Nisshin Steel Co Ltd | Method for continuous heating of steel strip by vertical type direct heating furnace |
| CN2521566Y (en) * | 2001-08-30 | 2002-11-20 | 刘启锐 | Single (double)-row tunnel type on-line gas protection casing continuous annealing furnace |
| CN202786362U (en) * | 2012-06-27 | 2013-03-13 | 艾伯纳工业炉(太仓)有限公司 | HITT (high temperature and tight) single-coil stacking hood-type annealing furnace for thermal treatment of orientated electrical steel |
| CN103557705A (en) * | 2013-11-22 | 2014-02-05 | 苏州新长光热能科技有限公司 | Aluminum slab ingot pit type heating furnace with soaking function |
| CN106086385A (en) * | 2016-08-17 | 2016-11-09 | 包头市威丰稀土电磁材料股份有限公司 | The bell furnace atmosphere tubing that can move with stove car |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020514656A (en) | 2020-05-21 |
| KR101867730B1 (en) | 2018-06-14 |
| WO2018117458A1 (en) | 2018-06-28 |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190702 |
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