CN105886733A - Roller bottom type heat treatment production line - Google Patents
Roller bottom type heat treatment production line Download PDFInfo
- Publication number
- CN105886733A CN105886733A CN201610447545.6A CN201610447545A CN105886733A CN 105886733 A CN105886733 A CN 105886733A CN 201610447545 A CN201610447545 A CN 201610447545A CN 105886733 A CN105886733 A CN 105886733A
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- Prior art keywords
- heating furnace
- furnace body
- roller
- production line
- subregion
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Classifications
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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
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- 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
- C21D11/00—Process control or regulation for heat treatments
-
- 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
- C21D9/0012—Rolls; Roll arrangements
-
- 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
- C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
Abstract
The invention relates to a roller bottom type heat treatment production line in the field of heat treatment. The roller bottom type heat treatment production line comprises a heating furnace body, a conveying system and a cooling system, wherein the inside of the heating furnace body is uniformly divided into a plurality of zones; the temperatures in the zones are gradually set in a transition manner from low to high in the direction from an inlet to an outlet of the heating furnace body; the conveying system consists of a plurality of roller bars which rotate synchronously in the same direction; and the cooling system is correspondingly positioned on the outer side of one end of the outlet of the heating furnace body and comprises a water tank, a lifting hanger, rollers and a water spraying device. The production line not only can meet requirements of operation of an assembly line, but also can effectively reduce energy consumption of operation and improve yield of heat treatment.
Description
Technical field
The present invention relates to Field of Heat-treatment, especially relate to a kind of roller-bottom type heat-treatment production line utilizing roller rod conveying work pieces.
Background technology
nullKnown，Now many employing heat treatment heating furnaces carry out heat treatment operation to metal works，It is the most all to utilize to promote arm pushed along corresponding track together with charging basket by workpiece or release heating furnace，But，Long-term actual application finds，Owing to the temperature in heating-furnace is up to nearly 900 degree，And in charging basket, generally can fill again the pending workpiece of about 500Kg，The most at high temperature coefficient of friction is less，In the case of workpiece promotes resistance relatively big，When pushing along track or releasing charging basket，Need enough intensity guarantees one basket equipped with the charging basket of workpiece to head on one basket and move，If the high temperature that the plasticity of one of them charging basket is in heating furnace、Under the comprehensive function of the high pressure of workpiece and the motive force of promotion arm, deformation occurs，When it the most then can cause promotion, energy consumption increases，Improve production cost，Heavy then cannot be able to promote in heating furnace because charging basket is stuck，And cause needs to be stopped work and could process stuck charging basket to resume production；At present, for avoiding the occurrence of stuck phenomenon, some application sides have employed increases the mode of charging basket weight to reinforce charging basket, to reduce the probability of charging basket deformation, but energy consumption when this adds the most again implementation；
Simultaneously, owing to workpiece needs to carry out turnover heating furnace, when the batch workpiece needing heat treatment is bigger, limited by the heating operation time of existing heating furnace, after it can only process furnaceman's part, carrying out the heat treatment operation of next stove again, i.e. it cannot be carried out the heat treatment operation of continuous effective, and the most existing heat treatment heating furnace causes integral production inefficient because implementing assembly line work；In addition, use when heat treatment due to existing electric heating type heating furnace is entirely after by uniform for whole burner hearth heat temperature raising, heat treatment operation is carried out in just the workpiece needing heat treatment is pushed heating-furnace, the energy consumption of the most whole burner hearth is higher, and workpiece is also easier to the phenomenon that deforms because variations in temperature is too fast or ftracture when having just enter in stove, therefore, it is higher that traditional heating furnace there are production cost, the defect that heat treatment qualification rate is relatively low.
Summary of the invention
In order to overcome the deficiency in background technology, the invention discloses a kind of roller-bottom type heat-treatment production line, described production line is not only able to meet the requirement of assembly line work, but also can effectively reduce operation consumption and improve heat treatment qualification rate.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of roller-bottom type heat-treatment production line, described production line comprises heating furnace body, transmission system and cooling system；Described heating furnace body is provided with and is folded, by high-purity refractory fibre, the refractory insulating layer that prefabricated section is made, the inlet and outlet of heating furnace body is equipped with insulating curtain, divided multiple subregion uniformly along axis in the burner hearth of heating furnace body, the both sides of each subregion and bottom are provided with multiple squirrel-cage heater being made up of high temperature alloy resistance wire the most uniformly, and when heating, the temperature in these subregions is pressed heating furnace body import and is set with progressively transition from low to high to the direction exported；The bottom of each described subregion is equipped with groove, is placed with the brick of putting for support heater in groove, and groove notch is covered with carbonated lime brick stove cover plate；
Described transmission system is spaced by many, and by the roller bar construction driving driven by motor to synchronize rotating in same direction, these roller rods are arranged at bottom in the burner hearth of heating furnace body, and higher than the upper side of heater；The furnace wall of the two ends hermetically passing heating furnace body respective side respectively of many described roller rods, and corresponding and fixing high temperature resistant rolling bearing units connect respectively, these roller rods are positioned at one end of heating furnace body the same side and are mounted on drive sprocket, and these drive sprockets are rotated by the chain-driving driving driven by motor；
Described cooling system correspondence is positioned at the outside of heating furnace body exit end, and this cooling system comprises tank, elevating sling, roller and water injector；Described tank one end correspondence connects with the heating furnace body port of export, and tank is away from the elevating sling being arranged over the workpiece after handling cools down of one end of the heating furnace body port of export；Be provided with in tank many evenly spaced, the roller synchronizing rotating in same direction can be driven by driving means, these described rollers are rotating in same direction with the roller rod in transmission system, and the corresponding level of upper surface that the upper surface of roller is excellent with the roller being positioned at the heating furnace body port of export；Tank is provided with the water injector for workpiece carries out water-spraying control.
Further, the burner hearth of described heating furnace body divides six subregions, when heating, temperature in first subregion is set as 700 ± 10 DEG C, the temperature of the second subregion is set as 750 ± 10 DEG C, and the temperature of the 3rd subregion is set as 800 ± 10 DEG C, and the temperature of the 4th subregion is set as 850 ± 10 DEG C, the temperature of the 5th subregion is set as 880 ± 10 DEG C, and the temperature of the 6th subregion is set as 900 ± 10 DEG C.
Further, the inlet and outlet of described heating furnace body is respectively equipped with fire door and for switching the controlling organization of fire door.
Further, temperature-control heat couple and overtemperature warning thermocouple it are equipped with in described each subregion in heating furnace body burner hearth.
Further, the two ends of many described roller rod hermetically passing heating furnace body furnace walls are mounted on drive sprocket, and the drive sprocket at many roller rod two ends corresponding with can two chain toe joints of synchronization action, these two chains are respectively by an independent driving driven by motor.
Further, the upper surface that many described roller rods are collectively forming is higher than its one end close to the outlet of heating furnace body close to one end of heating furnace body import.
Further, what described band action roller rod rotated drives motor to be the driving means driving roller turn.
Further, described tank groove top is respectively provided on two sides with water injector, and this water injector is provided with the nozzle that multiple spout is inside uniformly.
Further, the lower section that the internal correspondence of described tank is positioned at many rollers is provided with water injector, and this water injector is uniformly provided with multiple spout upward, and the nozzle of interstitial site between corresponding many rollers that coincide.
Owing to using technical scheme as above, there is advantages that
Roller-bottom type heat-treatment production line simple in construction of the present invention, is beneficial to install, it is simple to operation, it is easy to safeguard；The heating furnace body that described production line have employed increasing entire length carries out multiple subregion and the design of each subregion independent heating, and utilize the transmission of the roller rod with support ability to enable the charging basket equipped with workpiece continuously through heating furnace, i.e. utilizing to transmit continuously makes workpiece complete heat treatment operation in by heating furnace during each subregion, thus reaches effectively to meet the purpose of assembly line work requirement；In addition, owing to the temperature in each subregion is the progressive setting increased, therefore deformation or cracking can effectively be avoided the occurrence of in the workpiece in charging basket passes sequentially through stove under the transmission of roller rod during each subregion, thus it has been correspondingly improved heat treatment qualification rate, simultaneously, the setting of the progressive each zone temperature increased can relative efficiency reduce the whole heating furnace energy consumption when heat treatment operation, thus reach improve production efficiency purpose.
Accompanying drawing explanation
Fig. 1 is the semi-section schematic diagram of described heating furnace body；
Fig. 2 is the generalized section of described cooling system.
In figure: 1, heating furnace body；2, insulating curtain；3, subregion；4, heater；5, groove；6, motor is driven；7, roller rod；8, rolling bearing units；9, chain；10, drive sprocket；11, tank；12, elevating sling；13, roller；14, water injector；15, nozzle.
Detailed description of the invention
Can be explained in more detail the present invention by the following examples, the open purpose of the present invention is intended to protect all changes and improvements in the scope of the invention, the invention is not limited in the following examples:
In conjunction with the roller-bottom type heat-treatment production line described in accompanying drawing 1～2, described production line comprises heating furnace body 1, transmission system and cooling system；Described heating furnace body 1 is provided with and is folded, by high-purity refractory fibre, the refractory insulating layer that prefabricated section is made, the inner side of the inlet and outlet of heating furnace body 1 is equipped with insulating curtain 2, thus insulating curtain 2 i.e. can be utilized to reach the purpose being easy to allow charging basket enter heating furnace body 1, reduce the loss when passing in and out charging basket of the heat in heating furnace body 1 the most to greatest extent；Multiple subregion 3 is become along the uniform virtual grate of axis in the burner hearth of heating furnace body 1, the both sides of each subregion 3 and bottom are provided with multiple squirrel-cage heater 4 being made up of high temperature alloy resistance wire the most uniformly, these heaters 4 are not only able to readily accessible and quick-replaceable, and it can also complete the operation of single replacing in actual applications in the case of not blowing out；For ease of placing heater 4, multiple put for card can be gone out in the setting of the bottom even of each subregion 3 in heating furnace body 1 burner hearth and put the groove 5 of brick, put brick for support heater 4 in groove 5, i.e. utilize and put brick and outwards will not be distributed by burner hearth bottom to the temperature ensureing heater 4；Simultaneously, the notch of groove 5 is also equipped with carbonated lime brick stove cover plate, carbonated lime brick stove cover plate is i.e. utilized to block the upper side of heater 4, thus not only do not interfere with heater 4 and upwards conduct heat, but also the oxidation cast that can be prevented effectively from burner hearth endogenous cause of ill high temperature and produce contacts with heater 4 after dropping, and then avoid the possibility of heater 4 short circuit；
The internal temperature of described multiple subregions 3 is pressed heating furnace body 1 import and is set with progressively transition from low to high to the direction exported, i.e. it is contained in the workpiece in charging basket to experience and entered stove to progressively heated until such a heat treatment process of structural transformation by low temperature, so it is not only able to the phenomenon avoiding workpiece to deform because variations in temperature is too fast when having just enter into burner hearth or ftracture, but also can preferably make workpiece uniformly be heated, and then effectively raise production efficiency and the qualification rate of heat treatment accordingly；As required, the burner hearth of heating furnace body 1 can be divided into six subregions, wherein, near burner hearth import for the first subregion, near furnace outlet for the 6th subregion, and when heating, temperature in first subregion is set as 700 DEG C, temperature in second subregion is set to 750 DEG C, temperature in 3rd subregion is set as 800 DEG C, temperature in 4th subregion is set as 850 DEG C, temperature in 5th subregion is set as 880 DEG C, temperature in 6th subregion is set as 900 DEG C (waiting the Temperature numerical of each subregion to be adjusted), i.e. when heat treatment without the burner hearth of whole heating furnace body 1 is all heated to the highest temperature, thus energy consumption when effectively reducing heating accordingly；
For avoiding the heat losses in heating furnace body 1 burner hearth further, corresponding fire door can be respectively provided with and for switching the controlling organization of fire door in the inlet and outlet of heating furnace body 1, i.e. heating furnace body 1 is when black furnace heat temperature raising or when processing last batch of workpiece, the heat in burner hearth can be gathered by closing corresponding fire door, thus save certain energy consumption accordingly；Temperature-control heat couple and overtemperature warning thermocouple it is equipped with in each subregion 3 in described heating furnace body 1, i.e. while utilizing heater 4 that workpiece is uniformly heated, additionally it is possible to warn thermocouple effectively to guarantee that the temperature in each subregion 3 is normal by temperature-control heat couple and overtemperature；
Described transmission system is spaced by many, and by driving motor 6 to drive the roller rod 7 synchronizing rotating in same direction to constitute, these roller rods 7 are arranged at bottom in the burner hearth of heating furnace body 1, and through these roller rods 7, the workpiece in the charging basket by roller rod 7 supports can be heated higher than the upper side of heater 4, the i.e. heat of heater 4；The furnace wall of the two ends of many described roller rods 7 hermetically passing heating furnace body 1 respective side respectively, and corresponding and fixing high temperature resistant rolling bearing units 8 connect respectively, these roller rods 7 are positioned at one end of heating furnace body 1 the same side and are mounted on drive sprocket 10, these drive sprockets 10 can be driven rotation by the chain 9 driving motor 6 to drive, i.e. these roller rods 7 can utilize drive sprocket 10 to carry out the rotation synchronized in the same direction under the drive driving motor 6；As required, corresponding drive sprocket 10 can be respectively mounted at the two ends of many roller rod 7 hermetically passing heating furnace body 1 furnace walls, and the drive sprocket 10 at many rollers rod 7 two ends corresponding with can two chain 9 toe joints of synchronization action, these two chains 9 are driven by respective driving motor 6 respectively, two driving motors 6 i.e. can be utilized to synchronize to drive the two ends of these roller rods 7, thus reach the purpose of the transmittability effectively strengthening these roller rods 7 when rotating；Or, it is possible to the one end close to heating furnace body 1 import of the upper surface being collectively forming by many roller rods 7 is disposed above its one end exported close to heating furnace body 1, i.e. helping to improve the transmittability of these roller rods 7 accordingly by arranging certain gradient；
Described cooling system correspondence is positioned at the outside of heating furnace body 1 exit end, and the workpiece being i.e. easy in charging basket is directly entered cooling link after the heat treatment through heating furnace body 1, thus has been correspondingly improved production efficiency；Described cooling system comprises tank 11, elevating sling 12, roller 13 and water injector 14, one end correspondence of tank 11 connects with heating furnace body 1 port of export, and tank 11 is away from being arranged over for handling equipped with the elevating sling 12 of charging basket of workpiece after cooling down of one end of heating furnace body 1 port of export；Be provided with in tank 11 many evenly spaced, the roller 13 synchronizing rotating in same direction can be driven by driving means, these rollers 13 described are rotating in same direction with the roller rod 7 in transmission system, and the corresponding level of upper surface of the upper surface of roller 13 and the roller rod 7 being positioned at heating furnace body 1 port of export；Tank 11 is additionally provided with the water injector 14 for cooling down the workpiece in charging basket, i.e. can be easy to catch, by many roller 13 supports, the charging basket sent by many roller rod 7 supports, then, during charging basket is sent to the other end by one end of tank 11 by many rollers 13, utilize water injector 14 that the workpiece in charging basket is carried out water-spraying control；For ease of assembling and reducing cost, it is possible to utilize the motor 6 that drives driving many roller rods 7 to rotate to synchronize to drive the rotation of many rollers 13；
As required, described tank 11 groove top is respectively provided on two sides with a set of water injector 14, this two sets water injector 14 is provided with the inside nozzle of multiple spout 15 the most uniformly, i.e. charging basket is when by tank 11, this two sets water injector 14 can carry out water-spraying control by the workpiece in charging basket simultaneously, or, the lower section being simultaneously positioned at many rollers 13 in the internal correspondence of tank 11 arranges a set of water injector 14, this water injector 14 is uniformly provided with multiple spout upward, and the nozzle 15 of interstitial site between corresponding many rollers 13 that coincide, i.e. these nozzles 15 from bottom to top can not be by the stop of roller 13 and affect when the workpiece in charging basket is sprayed water liquid；As required, above-mentioned water injector 14 can be carried out the injection to workpiece by sucking corresponding cooling medium in tank 11 or outside tank 11, and the cooling medium used can recycle, thus has reached to make full use of resource, cost-effective purpose.
When implementing roller-bottom type heat-treatment production line of the present invention, facility in described production line can be combined with corresponding automation control system, described production line is made to realize reliable and stable full-automatic operation, the industrial control computer leading industrial configuration software platform of collocation such as using high reliability collectively constitutes complete set, high performance, to have interactive capability automation control system, and according to the associated control parameters of operator's setting, described production line is enable to reach Autonomous Control, the purpose of fully automatic operation；Checking through repeatedly production practices, described production line is smooth, and stable operation is reliable, it is possible to meet thermal treatment process technology requirement；500Kg workpiece is filled with each charging basket, as a example by one day works continuously 24 hours, described production line can process 72 tons of workpiece every day, actual power consumption per ton is about 180 yuan, its production efficiency is 5～10 times of prior heat treatment equipment, and the Supreme People's Procuratorate's qualification rate of workpiece processed with described production line reaches more than 99%；Additionally, the per tour when operation of described production line only needs 5 workmans, this decreases 3～4 people than the order of classes or grades at school of traditional work, and i.e. described production line is not only able to improve efficiency, but also can reduce cost, and its great promotion and application in batch heat treatment operation are worth.
Part not in the detailed description of the invention is prior art, therefore the present invention is not described in detail.
Claims (9)
1. a roller-bottom type heat-treatment production line, is characterized in that: described production line comprises heating furnace body (1), transmission system and cooling system；Described heating furnace body (1) is provided with and is folded, by high-purity refractory fibre, the refractory insulating layer that prefabricated section is made, the inlet and outlet of heating furnace body (1) is equipped with insulating curtain (2), divided multiple subregion (3) uniformly along axis in the burner hearth of heating furnace body (1), the both sides of each subregion (3) and bottom are provided with multiple squirrel-cage heater (4) being made up of high temperature alloy resistance wire the most uniformly, and when heating, temperature in these subregions (3) sets presses heating furnace body (1) import to the direction exported with the most progressively transition；The bottom of described each subregion (3) is equipped with groove (5), is placed with the brick of putting for support heater (4) in groove (5), and groove (5) notch is covered with carbonated lime brick stove cover plate；
Described transmission system is spaced by many, and by driving motor (6) to drive roller rod (7) synchronizing rotating in same direction to constitute, these rollers rod (7) are arranged at bottom in the burner hearth of heating furnace body (1), and higher than the upper side of heater (4)；The furnace wall of the two ends of many described roller rods (7) hermetically passing heating furnace body (1) respective side respectively, and correspondence and fixing high temperature resistant rolling bearing units (8) connect respectively, one end that these rollers rod (7) are positioned at heating furnace body (1) the same side is mounted on drive sprocket (10), and these drive sprockets (10) are driven by the chain (9) driving motor (6) to drive and rotate；
Described cooling system correspondence is positioned at the outside of heating furnace body (1) exit end, and this cooling system comprises tank (11), elevating sling (12), roller (13) and water injector (14)；Described tank (11) one end correspondence connects with heating furnace body (1) port of export, and tank (11) is away from the elevating sling (12) being arranged over the workpiece after handling cools down of one end of heating furnace body (1) port of export；Be provided with in tank (11) many evenly spaced, the roller (13) synchronizing rotating in same direction can be driven by driving means, roller rod (7) in described these rollers (13) and transmission system is rotating in same direction, and the corresponding level of upper surface of the upper surface of roller (13) and roller rod (7) being positioned at heating furnace body (1) port of export；Tank (11) is provided with the water injector (14) for workpiece carries out water-spraying control.
Roller-bottom type heat-treatment production line the most according to claim 1, it is characterized in that: the burner hearth of described heating furnace body (1) divides six subregions (3), when heating, temperature in first subregion is set as 700 ± 10 DEG C, the temperature of the second subregion is set as 750 ± 10 DEG C, the temperature of the 3rd subregion is set as 800 ± 10 DEG C, the temperature of the 4th subregion is set as 850 ± 10 DEG C, the temperature of the 5th subregion is set as 880 ± 10 DEG C, and the temperature of the 6th subregion is set as 900 ± 10 DEG C.
Roller-bottom type heat-treatment production line the most according to claim 1, is characterized in that: the inlet and outlet of described heating furnace body (1) is respectively equipped with fire door and for switching the controlling organization of fire door.
Roller-bottom type heat-treatment production line the most according to claim 1, is characterized in that: be equipped with temperature-control heat couple and overtemperature warning thermocouple in described each subregion (3) in heating furnace body (1) burner hearth.
Roller-bottom type heat-treatment production line the most according to claim 1, it is characterized in that: the two ends of many described roller rod (7) hermetically passing heating furnace body (1) furnace walls are mounted on drive sprocket (10), and the drive sprocket (10) at many roller rod (7) two ends corresponding with can two chain (9) toe joints of synchronization action, these two chains (9) are driven motor (6) to drive by one respectively.
Roller-bottom type heat-treatment production line the most according to claim 1, is characterized in that: the upper surface that many described roller rods (7) are collectively forming is higher than its one end exported close to heating furnace body (1) close to one end of heating furnace body (1) import.
Roller-bottom type heat-treatment production line the most according to claim 1, is characterized in that: described driving motor (6) is the driving means driving roller (13) to rotate.
Roller-bottom type heat-treatment production line the most according to claim 1, it is characterized in that: described tank (11) groove top is respectively provided on two sides with water injector (14), this water injector (14) is provided with the inside nozzle of multiple spout (15) uniformly.
Roller-bottom type heat-treatment production line the most according to claim 1, it is characterized in that: the internal correspondence of described tank (11) is positioned at the position of many roller (13) lower sections and is provided with water injector (14), this water injector (14) is uniformly provided with multiple spout upward, and the nozzle (15) of interstitial site between corresponding many rollers (13) that coincide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610447545.6A CN105886733A (en) | 2016-06-21 | 2016-06-21 | Roller bottom type heat treatment production line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610447545.6A CN105886733A (en) | 2016-06-21 | 2016-06-21 | Roller bottom type heat treatment production line |
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| CN105886733A true CN105886733A (en) | 2016-08-24 |
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| CN201610447545.6A Pending CN105886733A (en) | 2016-06-21 | 2016-06-21 | Roller bottom type heat treatment production line |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435144A (en) * | 2016-08-31 | 2017-02-22 | 安吉县鹏大钢管有限公司 | Thermal refining production line of geology steel tube for exploration |
| CN109266818A (en) * | 2018-11-14 | 2019-01-25 | 浙江中达特钢股份有限公司 | A kind of seamless pipe bright annealing device |
| CN116574895A (en) * | 2023-05-22 | 2023-08-11 | 上海晟昌实业有限公司 | Electric heating equipment for strip steel heat treatment |
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| JPH1017925A (en) * | 1996-07-04 | 1998-01-20 | Daido Steel Co Ltd | Continuous heat treatment furnace |
| CN201424493Y (en) * | 2008-12-12 | 2010-03-17 | 黄冈市华窑中洲窑炉有限公司 | Fully-automatic roller-hearth solid solution heat treatment furnace |
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| CN201501905U (en) * | 2009-08-26 | 2010-06-09 | 宝山钢铁股份有限公司 | Roller-hearth type multi-section annealing furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435144A (en) * | 2016-08-31 | 2017-02-22 | 安吉县鹏大钢管有限公司 | Thermal refining production line of geology steel tube for exploration |
| CN109266818A (en) * | 2018-11-14 | 2019-01-25 | 浙江中达特钢股份有限公司 | A kind of seamless pipe bright annealing device |
| CN116574895A (en) * | 2023-05-22 | 2023-08-11 | 上海晟昌实业有限公司 | Electric heating equipment for strip steel heat treatment |
| CN116574895B (en) * | 2023-05-22 | 2024-02-09 | 上海晟昌实业有限公司 | Electric heating equipment for strip steel heat treatment |
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