CN114107627A - Strong convection gas protection device of well type spheroidizing annealing furnace - Google Patents
Strong convection gas protection device of well type spheroidizing annealing furnace Download PDFInfo
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- CN114107627A CN114107627A CN202210080102.3A CN202210080102A CN114107627A CN 114107627 A CN114107627 A CN 114107627A CN 202210080102 A CN202210080102 A CN 202210080102A CN 114107627 A CN114107627 A CN 114107627A
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- 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
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
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- 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
- C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
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- 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
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
-
- 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
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- 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)
- Furnace Details (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention provides a strong convection gas protection device for a well-type spheroidizing annealing furnace, and relates to the technical field of annealing furnaces. This based on strong convection gas protection device of well-type spheroidizing annealing furnace, including fender bracket and furnace body, the inside of furnace body is provided with the charging frame, the last port of furnace body is provided with the bell, the upper end middle part of bell is run through and is provided with first motor, the lower extreme of first motor extends the one end that has motor shaft and is provided with circulating fan, circulating fan sets up the lower terminal surface at the bell, the lower extreme both sides of bell are run through and are provided with the rotation groove, inside one side that rotates the groove is provided with the third motor, the one end of third motor is provided with the dwang, the one end of dwang is run through and is provided with the wind-up roll, the surface of wind-up roll is provided with the steel cable, the lower extreme of steel cable is connected with the upper end both sides of charging frame. Through the device, can effectively protect the use.
Description
Technical Field
The invention relates to the technical field of annealing furnaces, in particular to a strong convection gas protection device of a well-type spheroidizing annealing furnace.
Background
The spheroidizing annealing furnace is suitable for hardware and special steel enterprises to produce high-quality special products, and carbon tool steel, alloy tool steel, bearing steel and the like subjected to furnace spheroidizing annealing achieve the required mechanical property and physical property and improve the plasticity. Reduce residual stress and improve the homogenization of tissues and components. The treated product has no oxidation and decarbonization, uniform spheroidized structure and good technological performance and use performance. The mechanical property of the heat-treated steel can fully meet the requirements of users through material analysis, metallographic structure analysis, discussion of spheroidization mechanism and retrospection of the spheroidization process, and the well-type annealing furnace is mainly suitable for annealing heat treatment of wire rods, copper pieces, stainless steel, steel belts, metal parts and the like. The workpiece is less oxidized and no decarbonization is kept clean after annealing.
The use of well formula balling annealing stove still has certain not enough at present stage, can not form effective protection and use, and inconvenient the adjusting use, reduces operating personnel's use intensity, consequently needs well formula balling annealing stove strong convection gas protection device to solve this problem.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a strong convection gas protection device of a well-type spheroidizing annealing furnace, which solves the problem that the annealing furnace can not form effective protection when strong convection gas exists.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the strong convection gas protection device for the well-type spheroidizing annealing furnace comprises a protection frame and a furnace body, wherein a protection groove is arranged in the middle of the upper end of the protection frame in a penetrating manner, the furnace body is arranged inside the protection groove, a stable structure is arranged on the left side inside the protection groove, a heat conduction sleeve is arranged on the right side inside the furnace body, a heater is arranged inside the heat conduction sleeve, a placement sleeve is arranged on the right side of the furnace body and in a penetrating manner relative to the heat conduction sleeve, a second motor is arranged on the right side inside the placement sleeve, a motor shaft extends from one end of the second motor, and a cooling fan is arranged at one end of the motor shaft;
a charging frame is arranged inside the furnace body, a furnace cover is arranged at an upper port of the furnace body, a first motor is arranged in the middle of the upper end of the furnace cover in a penetrating mode, a motor shaft extends from the lower end of the first motor, a circulating fan is arranged at one end of the motor shaft, the circulating fan is arranged on the lower end face of the furnace cover and is arranged opposite to the inside of the furnace body, rotating grooves are arranged on two sides of the lower end of the furnace cover in a penetrating mode, a third motor is arranged on one side inside each rotating groove, a rotating rod is arranged at one end of the third motor, a winding roller is arranged at one end of the rotating rod in a penetrating mode and is connected with the rotating rod, a steel rope is arranged on the outer surface of the winding roller, and the lower end of the steel rope is connected with two sides of the upper end of the charging frame;
the upper end both sides of fender bracket all run through and are provided with the lift groove, the inside lower extreme in lift groove is provided with first electric putter, first electric putter's upper end fixedly connected with lifter plate, the upper end of lifter plate is provided with the connecting plate, the equal fixedly connected with connecting rod in lower extreme both sides of connecting plate, the lower extreme of connecting rod is connected with the upper end both sides of bell respectively.
Preferably, the front end and the rear end of the protection frame are both provided with a plurality of stabilizing blocks which are arranged at equal intervals.
Preferably, the stabilizing structure comprises a pushing groove, a second electric push rod is arranged at the rear end of the inside of the pushing groove, a stabilizing plate is arranged at one end of the second electric push rod, and the stabilizing plate is in contact with the furnace body.
Preferably, a placement groove is formed in the right side of the inside of the protection groove, and the placement sleeve is arranged inside the placement groove.
Preferably, the lower end of the interior of the furnace body is provided with a slot, and the lower end of the charging frame is provided with an insert block relative to the interior of the slot.
Preferably, a bearing is arranged on the other side in the rotating groove, and an inner sleeve of the bearing is connected with one end of the rotating rod.
Preferably, the side surface of the lifting plate is in sliding connection with the inner wall of the lifting groove.
(III) advantageous effects
The invention provides a strong convection gas protection device for a well-type spheroidizing annealing furnace. The method has the following beneficial effects:
1. the second electric push rod at the position of the stabilizing structure drives the stabilizing plate to be in contact with the furnace body, so that the use stability of the furnace body in the protective groove is improved, the overall installation efficiency is effectively improved, and the furnace body is protected and used.
2. Come to cool down the cooling protection after using up the heater through cooling blower and use, and can effectively cool down the protection and use to the inside of furnace body, make the inside of furnace body form the gaseous use of circulation convection current through circulating fan, make the heat in the inside full cycle of furnace body use, reduce calorific loss, the energy saving.
3. The third motor in the rotating groove is arranged at the furnace cover to drive the rotating rod to rotate, so that the steel rope is driven by the winding roller to lift up and down the use height of the charging rack, the situation that an operator cannot effectively stably charge materials for annealing is avoided, the protection of the operator can be formed, the influence of the operator on the furnace mouth of the straight furnace body caused by high temperature is avoided.
4. Adjust the use height of lifter plate through the first electric putter of fender bracket department lift inslot to come to adjust the use height of bell through connecting plate and connecting rod, thereby carry out effective cooperation and feed annealing and use.
Drawings
FIG. 1 is an external view of a strong convection gas protection device of a well-type spheroidizing annealing furnace according to the present invention;
FIG. 2 is a schematic structural view of a furnace body of the strong convection gas protection device of the well-type spheroidizing annealing furnace of the invention;
FIG. 3 is a schematic structural diagram of a protective frame of the strong convection gas protection device of the well-type spheroidizing annealing furnace according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2;
fig. 5 is an enlarged schematic view of the structure at B in fig. 3.
Wherein, 1, a protection frame; 2. a stabilizing block; 3. a furnace body; 4. a lifting plate; 5. a furnace cover; 6. a connecting plate; 7. a charging rack; 8. a steel cord; 9. a first motor; 10. a circulating fan; 11. a heat conducting sleeve; 12. a cooling fan; 13. a second motor; 14. arranging a sleeve; 15. a heater; 16. a slot; 17. inserting a block; 18. a connecting rod; 19. a lifting groove; 20. a first electric push rod; 21. a placing groove; 22. a protective groove; 23. a third motor; 24. a bearing; 25. a rotating groove; 26. a wind-up roll; 27. rotating the rod; 28. stabilizing the structure; 281. a push tank; 282. a stabilizing plate; 283. a second electric push rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-5, the embodiment of the invention provides a strong convection gas protection device for a well-type spheroidizing annealing furnace, which comprises a protection frame 1 and a furnace body 3, wherein the front end and the rear end of the protection frame 1 are respectively provided with a stabilizing block 2, the stabilizing blocks 2 are arranged in a plurality and are arranged at equal intervals, the protection frame 1 is buried underground, the stability of the protective frame 1 is increased by the stabilizing block 2, the protective groove 22 is arranged in the middle of the upper end of the protective frame 1, the furnace body 3 is arranged in the protective groove 22, the stabilizing structure 28 is arranged on the left side of the inner part of the protective groove 22, the stabilizing structure 28 comprises a pushing groove 281, the rear end of the inner part of the pushing groove 281 is provided with a second electric push rod 283, one end of the second electric push rod 283 is provided with a stabilizing plate 282, the stabilizing plate 282 is in contact with the furnace body 3, the second electric push rod 283 at the position of the stabilizing structure 28 drives the stabilizing plate 282 to contact with the furnace body 3, so that the use stability of the furnace body 3 in the protective groove 22 is improved;
a heat conduction sleeve 11 is arranged on the right side in the furnace body 3, a heater 15 is arranged in the heat conduction sleeve 11, a placement sleeve 14 is arranged on the right side of the furnace body 3 and penetrates through the heat conduction sleeve 11, a placement groove 21 is arranged on the right side in the protection groove 22, the placement sleeve 14 is arranged in the placement groove 21, a second motor 13 is arranged on the right side in the placement sleeve 14, a motor shaft extends from one end of the second motor 13, a cooling fan 12 is arranged at one end of the motor shaft, the heater 15 in the heat conduction sleeve 11 is used for supplying heat, the cooling fan 12 is used for cooling and protecting the heater 15 after being used, and the inside of the furnace body 3 can be effectively cooled and protected;
a charging frame 7 is arranged in the furnace body 3, a slot 16 is arranged at the lower end in the furnace body 3, an insert block 17 is arranged at the lower end of the charging frame 7 and opposite to the inner part of the slot 16, a furnace cover 5 is arranged at the upper port of the furnace body 3, a first motor 9 is arranged at the middle part of the upper end of the furnace cover 5 in a penetrating way, a motor shaft extends from the lower end of the first motor 9, a circulating fan 10 is arranged at one end of the motor shaft, the circulating fan 10 is arranged on the lower end face of the furnace cover 5 and opposite to the inner part of the furnace body 3, the circulating fan 10 enables the inner part of the furnace body 3 to form circulating convection gas for use so as to enable the heat to be fully recycled in the furnace body 3 and reduce the heat loss, rotating grooves 25 are arranged at two sides of the lower end of the furnace cover 5 in a penetrating way, a third motor 23 is arranged at one side in the rotating grooves 25, a rotating rod 27 is arranged at one end of the third motor 23, and a bearing 24 is arranged at the other side in the rotating grooves 25, an inner sleeve of the bearing 24 is connected with one end of a rotating rod 27, one end of the rotating rod 27 is provided with a winding roller 26 in a penetrating mode, the winding roller 26 is connected with the rotating rod 27, a steel rope 8 is arranged on the outer surface of the winding roller 26, the lower end of the steel rope 8 is connected with two sides of the upper end of the charging rack 7, the rotating rod 27 is driven to rotate by a third motor 23 in a rotating groove 25 at the position of the furnace cover 5, and the steel rope 8 is driven by the winding roller 26 to lift the using height of the charging rack 7 for use, so that the situation that an operator cannot effectively perform stable charging and annealing use is avoided, the operator can be protected, and the influence on the operator caused by high temperature at the furnace mouth of the straight furnace body 3 of the operator is avoided;
the upper end both sides of fender bracket 1 all run through and are provided with lift groove 19, the inside lower extreme of lift groove 19 is provided with first electric putter 20, the upper end fixedly connected with lifter plate 4 of first electric putter 20, the side of lifter plate 4 and the inner wall sliding connection of lift groove 19, the upper end of lifter plate 4 is provided with connecting plate 6, the equal fixedly connected with connecting rod 18 in lower extreme both sides of connecting plate 6, the lower extreme of connecting rod 18 is connected with the upper end both sides of bell 5 respectively, first electric putter 20 comes to adjust the use height of lifter plate 4 in the lift groove 19 of fender bracket 1 department, thereby come to adjust the use height of bell 5 through connecting plate 6 and connecting rod 18, thereby effectively cooperate the annealing of feeding to use.
The working principle is as follows: the heater 15 is used for supplying heat through the heat conduction sleeve 11, the heater 15 is cooled and protected after being used up through the cooling fan 12, the inside of the furnace body 3 can be effectively cooled and protected, the third motor 23 in the rotating groove 25 is arranged at the furnace cover 5 to drive the rotating rod 27 to rotate, the steel rope 8 is driven through the winding roller 26 to lift up and down the use height of the charging rack 7, the situation that the operation personnel cannot effectively stably charge and anneal is used is avoided, the protection to the operation personnel can be formed, the use height of the lifting plate 4 is adjusted through the first electric push rod 20 in the lifting groove 19 at the protection rack 1, and the use height of the furnace cover 5 is adjusted through the connecting plate 6 and the connecting rod 18.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Well formula balling annealing stove strong convection gas protection device, including fender bracket (1) and furnace body (3), its characterized in that: a protection groove (22) penetrates through the middle of the upper end of the protection frame (1), the furnace body (3) is arranged inside the protection groove (22), a stabilizing structure (28) is arranged on the left side inside the protection groove (22), a heat conduction sleeve (11) is arranged on the right side inside the furnace body (3), a heater (15) is arranged inside the heat conduction sleeve (11), a placement sleeve (14) penetrates through the right side of the furnace body (3) relative to the heat conduction sleeve (11), a second motor (13) is arranged on the right side inside the placement sleeve (14), a motor shaft extends from one end of the second motor (13), and a cooling fan (12) is arranged at one end of the motor shaft;
the furnace is characterized in that a charging frame (7) is arranged in the furnace body (3), a furnace cover (5) is arranged at an upper port of the furnace body (3), a first motor (9) penetrates through the middle of the upper end of the furnace cover (5), a motor shaft extends from the lower end of the first motor (9), a circulating fan (10) is arranged at one end of the motor shaft, the circulating fan (10) is arranged on the lower end face of the furnace cover (5) and is arranged relative to the furnace body (3), rotating grooves (25) penetrate through two sides of the lower end of the furnace cover (5), a third motor (23) is arranged on one side of the inside of each rotating groove (25), a rotating rod (27) is arranged at one end of each third motor (23), a winding roller (26) penetrates through one end of each rotating rod (27), the winding roller (26) is connected with the rotating rods (27), a steel rope (8) is arranged on the outer surface of the winding roller (26), the lower end of the steel rope (8) is connected with the two sides of the upper end of the charging frame (7);
the utility model discloses a furnace cover, including fender bracket (1), inside lower extreme of lift groove (19), the upper end both sides of fender bracket (1) all run through and are provided with lift groove (19), the inside lower extreme of lift groove (19) is provided with first electric putter (20), the upper end fixedly connected with lifter plate (4) of first electric putter (20), the upper end of lifter plate (4) is provided with connecting plate (6), the equal fixedly connected with connecting rod (18) in lower extreme both sides of connecting plate (6), the lower extreme of connecting rod (18) is connected with the upper end both sides of bell (5) respectively.
2. The strong convection gas protection device of the well-type spheroidizing annealing furnace according to claim 1, characterized in that: the front end and the rear end of the protection frame (1) are provided with stabilizing blocks (2), and the stabilizing blocks (2) are arranged at equal intervals.
3. The strong convection gas protection device of the well-type spheroidizing annealing furnace according to claim 1, characterized in that: the stabilizing structure (28) comprises a pushing groove (281), a second electric push rod (283) is arranged at the rear end of the inside of the pushing groove (281), a stabilizing plate (282) is arranged at one end of the second electric push rod (283), and the stabilizing plate (282) is in contact with the furnace body (3).
4. The strong convection gas protection device of the well-type spheroidizing annealing furnace according to claim 1, characterized in that: the right side of the inside of the protection groove (22) is provided with a placement groove (21), and the placement sleeve (14) is arranged inside the placement groove (21).
5. The strong convection gas protection device of the well-type spheroidizing annealing furnace according to claim 1, characterized in that: the lower end of the interior of the furnace body (3) is provided with a slot (16), and the lower end of the charging frame (7) is provided with an insert block (17) relative to the interior of the slot (16).
6. The strong convection gas protection device of the well-type spheroidizing annealing furnace according to claim 1, characterized in that: and a bearing (24) is arranged on the other side in the rotating groove (25), and an inner sleeve of the bearing (24) is connected with one end of the rotating rod (27).
7. The strong convection gas protection device of the well-type spheroidizing annealing furnace according to claim 1, characterized in that: the side surface of the lifting plate (4) is connected with the inner wall of the lifting groove (19) in a sliding way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210080102.3A CN114107627A (en) | 2022-01-24 | 2022-01-24 | Strong convection gas protection device of well type spheroidizing annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210080102.3A CN114107627A (en) | 2022-01-24 | 2022-01-24 | Strong convection gas protection device of well type spheroidizing annealing furnace |
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| CN114107627A true CN114107627A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210080102.3A Pending CN114107627A (en) | 2022-01-24 | 2022-01-24 | Strong convection gas protection device of well type spheroidizing annealing furnace |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202252667U (en) * | 2011-10-20 | 2012-05-30 | 铜陵有色金属集团股份有限公司 | Integrated Kaldo furnace bracket |
| CN203411599U (en) * | 2013-08-07 | 2014-01-29 | 湖南特科能热处理有限公司 | Well type carburizing and nitriding furnace |
| CN204311087U (en) * | 2014-12-09 | 2015-05-06 | 长兴鼎峰炉业有限公司 | A kind of well formula forvacuum annealing furnace |
| CN206553393U (en) * | 2017-03-09 | 2017-10-13 | 成都光明光电股份有限公司 | High temperature precision annealing furnace |
| CN110186284A (en) * | 2019-05-20 | 2019-08-30 | 河南天利热工装备股份有限公司 | A kind of electric pushrod lifting furnace cover structure |
| CN209338615U (en) * | 2018-12-17 | 2019-09-03 | 大连中兴成信机械工程有限公司 | A kind of distributing type Rebuild of Heat-treatment Annealing Furnace |
| CN110872642A (en) * | 2019-10-30 | 2020-03-10 | 深圳市安达工业设计有限公司 | Annealing equipment convenient to protection work piece |
| CN210916160U (en) * | 2019-08-31 | 2020-07-03 | 浙江晋椿精密工业有限公司 | High ductility buffing stick thermal treatment spheroidizing furnace |
| CN211665139U (en) * | 2019-12-09 | 2020-10-13 | 泰州中门子炉业有限公司 | Energy-saving heat treatment well type heating furnace |
| CN111809033A (en) * | 2020-07-22 | 2020-10-23 | 赣州市合安科技有限公司 | Well type tempering furnace with convenient feeding and discharging |
| CN213357645U (en) * | 2020-08-18 | 2021-06-04 | 江苏三鑫特殊金属材料股份有限公司 | Well type annealing furnace convenient to use |
-
2022
- 2022-01-24 CN CN202210080102.3A patent/CN114107627A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202252667U (en) * | 2011-10-20 | 2012-05-30 | 铜陵有色金属集团股份有限公司 | Integrated Kaldo furnace bracket |
| CN203411599U (en) * | 2013-08-07 | 2014-01-29 | 湖南特科能热处理有限公司 | Well type carburizing and nitriding furnace |
| CN204311087U (en) * | 2014-12-09 | 2015-05-06 | 长兴鼎峰炉业有限公司 | A kind of well formula forvacuum annealing furnace |
| CN206553393U (en) * | 2017-03-09 | 2017-10-13 | 成都光明光电股份有限公司 | High temperature precision annealing furnace |
| CN209338615U (en) * | 2018-12-17 | 2019-09-03 | 大连中兴成信机械工程有限公司 | A kind of distributing type Rebuild of Heat-treatment Annealing Furnace |
| CN110186284A (en) * | 2019-05-20 | 2019-08-30 | 河南天利热工装备股份有限公司 | A kind of electric pushrod lifting furnace cover structure |
| CN210916160U (en) * | 2019-08-31 | 2020-07-03 | 浙江晋椿精密工业有限公司 | High ductility buffing stick thermal treatment spheroidizing furnace |
| CN110872642A (en) * | 2019-10-30 | 2020-03-10 | 深圳市安达工业设计有限公司 | Annealing equipment convenient to protection work piece |
| CN211665139U (en) * | 2019-12-09 | 2020-10-13 | 泰州中门子炉业有限公司 | Energy-saving heat treatment well type heating furnace |
| CN111809033A (en) * | 2020-07-22 | 2020-10-23 | 赣州市合安科技有限公司 | Well type tempering furnace with convenient feeding and discharging |
| CN213357645U (en) * | 2020-08-18 | 2021-06-04 | 江苏三鑫特殊金属材料股份有限公司 | Well type annealing furnace convenient to use |
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