CN201209154Y - Tunnel type continuous heat treating furnace - Google Patents
Tunnel type continuous heat treating furnace Download PDFInfo
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- CN201209154Y CN201209154Y CNU2008200495095U CN200820049509U CN201209154Y CN 201209154 Y CN201209154 Y CN 201209154Y CN U2008200495095 U CNU2008200495095 U CN U2008200495095U CN 200820049509 U CN200820049509 U CN 200820049509U CN 201209154 Y CN201209154 Y CN 201209154Y
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- heating apparatus
- furnaces heating
- temperature furnaces
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The utility model relates to the technical field of the heat treating furnace, in particular to a tunnel type continuous heat treating furnace comprising a workpiece conveyor belt and a furnace body. The workpiece conveyor belt passes through the furnace body, and outwards extends towards the two sides of the furnace body, and the furnace body is divided into a preheating furnace, a high-temperature furnace, a temperature reduction furnace and a cooling furnace in turn along the workpiece moving direction, wherein a gap exists between the preheating furnace and the high-temperature furnace, the connection of the high-temperature furnace and the temperature reduction furnace is an integral structure, and a gap also exists between the temperature reduction furnace and the cooling furnace; a connecting port used for letting inert gas to enter in is respectively arranged on the high-temperature furnace and the temperature reduction furnace, an oxygen obstructing device is respectively arranged at the inlet of the high-temperature furnace and the outlet of the temperature reduction furnace, and the oxygen obstructing devices are arranged on the workpiece conveyer belt. The utility model can continuously carry out the heat treatment to the workpieces, and can enable the oxygen-free state to be formed in the interior of the furnace body through adding the inert gas into the high-temperature furnace and the temperature reducitn furnace, thereby ensuring that the heat treatment is carried out to the workpieces under the oxygen-free state.
Description
Technical field:
The utility model relates to the heat treatment furnace technical field, refers in particular to a kind of tunnel like continuous heat treating furnace.
Background technology:
Thermal treatment can change the internal organizational structure of steel, thereby improves its processing performance and use properties, fully excavates the potentiality of steel, prolongs the work-ing life of part, improves the quality of products the economical with materials and the energy.Correct thermal treatment can also be eliminated the various defectives that steel cause through heat processing techniques such as casting, forging, welding, and crystal grain thinning, elimination segregation, reduction internal stress make tissue and performance more even.Because, workpiece is when carrying out high-temperature heat treatment, workpiece may be heated to the 400-800 degree, or higher temperature, if, at this moment there is oxygen around the workpiece, the surface of workpiece will be oxidized, and workpiece is scrapped because of oxidized, so, workpiece must be guaranteed to carry out under anaerobic state when carrying out high-temperature heat treatment.At present, the thermal treatment of workpiece is adopted mostly and is carried out under vacuum state, and this just requires heat treatment furnace inside must keep vacuum when work, then, in some continuous heat treating furnaces, during the workpiece turnover, fire door is that requirement is opened wide, and keep the body of heater inner vacuum is the comparison difficulty.
The utility model content:
The purpose of this utility model is exactly to have deficiency and a kind of tunnel like continuous heat treating furnace is provided at prior art.
To achieve these goals, the technical solution adopted in the utility model is: the tunnel like continuous heat treating furnace, comprise workpiece conveyor and body of heater, workpiece conveyor passes body of heater, and is stretched out by the both sides of body of heater, and body of heater is divided into preheating oven, High Temperature Furnaces Heating Apparatus, cooling stove and cool furnace successively by the workpiece travel direction, wherein, have a gap between preheating oven and the High Temperature Furnaces Heating Apparatus, High Temperature Furnaces Heating Apparatus and cooling stove are connected to an one-piece construction, have a gap between cooling stove and the cool furnace; High Temperature Furnaces Heating Apparatus and cooling stove are respectively equipped with the Link Port that enters for rare gas element, be respectively arranged with the oxygen obstruction device at the inlet of High Temperature Furnaces Heating Apparatus and the outlet of cooling stove, the oxygen obstruction device is installed on the workpiece conveyor, the oxygen obstruction device comprises a nozzle, the conduit that is connected with nozzle, and the opening direction of nozzle is provided with up.
Be provided with resistance wire in described preheating oven and the High Temperature Furnaces Heating Apparatus, resistance wire is positioned at the workpiece conveyor below.
Entrance and exit at preheating oven is respectively arranged with air exhausting device, and air exhausting device is arranged on preheating oven top, and the air outlet of air exhausting device is towards workpiece conveyor.
Be respectively arranged with air exhausting device at the inlet of High Temperature Furnaces Heating Apparatus and the outlet of cooling stove, air exhausting device is separately positioned on the top of High Temperature Furnaces Heating Apparatus and cooling stove, and the air outlet of air exhausting device is towards workpiece conveyor.
At least one hot blast agitator is set on High Temperature Furnaces Heating Apparatus, and described hot blast agitator comprises motor and fan blade, and motor is installed in the top of High Temperature Furnaces Heating Apparatus, and the output shaft of motor is connected with fan blade, and fan blade places High Temperature Furnaces Heating Apparatus inside.
Be provided with extractor fan at the cool furnace top, described extractor fan is connected with cool furnace is inner.
Described workpiece conveyor comprises the live roll on support and the equidistant mounting bracket, between the live roll of preheating oven extension, be connected to a travelling belt independently by chain, between the live roll between preheating oven, High Temperature Furnaces Heating Apparatus and the cooling stove, be connected to another independently travelling belt by chain, be connected to another independently travelling belt by chain in cool furnace and between the live roll of cool furnace extension, each independently travelling belt be respectively arranged with a drive unit, drive unit respectively by chain with each independently travelling belt be connected.
Described oxygen obstruction device is to be fixed on the support of workpiece conveyor.
The beneficial effects of the utility model are: the utility model is by wearing workpiece conveyor in body of heater, after being placed on the workpiece conveyor, workpiece can carry out the thermal treatment of workpiece continuously, body of heater of the present utility model is by be divided into preheating oven, High Temperature Furnaces Heating Apparatus, cooling stove and cool furnace successively by the workpiece travel direction, make workpiece the phenomenon that heats up and lower the temperature suddenly suddenly in heat-processed, can not occur, can not destroy the internal crystal structure of workpiece; The utility model is by feeding rare gas element in High Temperature Furnaces Heating Apparatus and cooling stove, carbonic acid gas for example, the carbonic acid gas utilization is respectively arranged with the oxygen obstruction device at the inlet of High Temperature Furnaces Heating Apparatus and the outlet of cooling stove, this baffling device is by the nozzle combustible gas injected that makes progress, combustible gas is known from experience at the inlet of High Temperature Furnaces Heating Apparatus and is gone out interruption-forming " fiery curtain " with the cooling stove, incendiary " fiery curtain " can consume the oxygen at fire door place, and then prevent that extraneous oxygen from entering High Temperature Furnaces Heating Apparatus and cooling stove, prevents that the pyritous workpiece is oxidized.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an internal structure synoptic diagram of the present utility model.
Embodiment:
See Fig. 1,2, the utility model comprises workpiece conveyor 1 and body of heater, workpiece conveyor 1 passes body of heater, and stretch out by the both sides of body of heater, body of heater is divided into preheating oven 21, High Temperature Furnaces Heating Apparatus 22, cooling stove 23 and cool furnace 24 successively by the workpiece travel direction, wherein, has a gap between preheating oven 21 and the High Temperature Furnaces Heating Apparatus 22, High Temperature Furnaces Heating Apparatus 22 and cooling stove 23 are connected to an one-piece construction, have a gap between cooling stove 23 and the cool furnace 24; High Temperature Furnaces Heating Apparatus 22 and cooling stove 23 are respectively equipped with the Link Port that enters for rare gas element, be respectively arranged with oxygen obstruction device 3 at the inlet of High Temperature Furnaces Heating Apparatus 22 and the outlet of cooling stove 23, oxygen obstruction device 3 is installed on the workpiece conveyor 1, oxygen obstruction device 3 comprises a nozzle 31, the conduit 32 that is connected with nozzle 31, and the opening direction of nozzle 31 is provided with up.
Be provided with resistance wire 4 in described preheating oven 21 and the High Temperature Furnaces Heating Apparatus 22, resistance wire 4 is positioned at workpiece conveyor 1 below, after resistance wire 4 energisings, can obtain the required temperature of heat treatment of workpieces at preheating oven 21 and High Temperature Furnaces Heating Apparatus 22 inside, preheating oven 21 temperature inside are controlled at below 400 degree, and High Temperature Furnaces Heating Apparatus 22 temperature inside remain on 800 to 900 degree.
Entrance and exit at preheating oven 21 is respectively arranged with air exhausting device 5, and air exhausting device 5 is arranged on preheating oven 21 tops, and the air outlet of air exhausting device 5 is towards workpiece conveyor 1.
Be respectively arranged with air exhausting device 6 at the inlet of High Temperature Furnaces Heating Apparatus 22 and the outlet of cooling stove 23, air exhausting device 6 is separately positioned on the top of High Temperature Furnaces Heating Apparatus 22 and cooling stove 23, and the air outlet of air exhausting device 6 is towards workpiece conveyor 1.
At least one hot blast agitator 7 is set on High Temperature Furnaces Heating Apparatus 22, and described hot blast agitator 7 comprises motor 71 and fan blade 72, and motor 71 is installed in the top of High Temperature Furnaces Heating Apparatus 22, and the output shaft of motor 71 is connected with fan blade 72, and fan blade 72 places High Temperature Furnaces Heating Apparatus 22 inside.
Be provided with extractor fan 8 at cool furnace 24 tops, described extractor fan 8 and 24 inner connections of cool furnace, when workpiece 9 after overheated reason, need cool off cooling but workpiece 9 can not sharply be lowered the temperature, sharply cooling can destroy the crystalline structure of workpiece 9 inside, make the degradation of workpiece 9, even workpiece is scrapped, so, can only allow workpiece 9 slowly cool off by the mode of air draft.
Described workpiece conveyor 1 comprises the live roll 12 on support 11 and the equidistant mounting bracket 11, between the live roll 12 of preheating oven 21 extensions, be connected to a travelling belt independently by chain (not drawing among the figure), be positioned at preheating oven 21, be connected to another independently travelling belt by chain (not drawing among the figure) between the live roll 12 between High Temperature Furnaces Heating Apparatus 22 and the cooling stove 23, in cool furnace 24 and between the live roll 12 of cool furnace 24 extensions, be connected to another independently travelling belt by chain (not drawing among the figure), each independently travelling belt be respectively arranged with a drive unit 10, drive unit 10 respectively by chain 13 with each independently travelling belt be connected.
Principle of work of the present utility model: see Fig. 2, begin into, work 9 is placed on the live roll 12 of preheating oven 21 extensions, workpiece 9 is under workpiece conveyor 1 is carried, respectively through preheating oven 21, High Temperature Furnaces Heating Apparatus 22, cooling stove 23 and cool furnace 24, at last, the live roll 12 by cool furnace 24 extensions transfers out through heat treated workpiece 9.After workpiece 9 enters preheating oven 21, under resistance wire 4 heating, workpiece 9 will be added to about 400 degree from normal temperature, workpiece 9 continues to move forward, enter High Temperature Furnaces Heating Apparatus 22, owing to be respectively arranged with oxygen obstruction device 3 at the inlet of High Temperature Furnaces Heating Apparatus 22 and the outlet of cooling stove 23, can guarantee that High Temperature Furnaces Heating Apparatus 22 inside are anaerobic state, can not influence the thermal effectiveness of workpiece 9, workpiece 9 will be heated in High Temperature Furnaces Heating Apparatus 22 about 900 degree, then, enter in the cooling stove 23 again, in the cooling stove 23 resistance wire 4 is not set, workpiece 9 will be lowered the temperature naturally at cooling stove 23, because pyritous workpiece 9 can not sharply be lowered the temperature, sharply cooling can destroy the internal structure of workpiece 9 equally, and the temperature of workpiece 9 will slowly drop in cooling stove 23 about 350 degree, enter in the cool furnace 24 through the workpiece 9 after the cooling again and cool off, make workpiece 9 be cooled to the normal temperature state, at last, cooled workpiece 9 is under the transmission of workpiece conveyor 1, by sending in the cool furnace 24, so far, the whole heat treatment process of workpiece 9 is finished.
Claims (8)
1, tunnel like continuous heat treating furnace, comprise workpiece conveyor and body of heater, workpiece conveyor passes body of heater, and stretch out by the both sides of body of heater, it is characterized in that: body of heater is divided into preheating oven, High Temperature Furnaces Heating Apparatus, cooling stove and cool furnace successively by the workpiece travel direction, wherein, has a gap between preheating oven and the High Temperature Furnaces Heating Apparatus, High Temperature Furnaces Heating Apparatus and cooling stove are connected to an one-piece construction, have a gap between cooling stove and the cool furnace; High Temperature Furnaces Heating Apparatus and cooling stove are respectively equipped with the Link Port that enters for rare gas element, be respectively arranged with the oxygen obstruction device at the inlet of High Temperature Furnaces Heating Apparatus and the outlet of cooling stove, the oxygen obstruction device is installed on the workpiece conveyor, the oxygen obstruction device comprises a nozzle, the conduit that is connected with nozzle, and the opening direction of nozzle is provided with up.
2, tunnel like continuous heat treating furnace according to claim 1 is characterized in that: be provided with resistance wire in described preheating oven and the High Temperature Furnaces Heating Apparatus, resistance wire is positioned at the workpiece conveyor below.
3, tunnel like continuous heat treating furnace according to claim 1, it is characterized in that: the entrance and exit at preheating oven is respectively arranged with air exhausting device, and air exhausting device is arranged on preheating oven top, and the air outlet of air exhausting device is towards workpiece conveyor.
4, tunnel like continuous heat treating furnace according to claim 1, it is characterized in that: be respectively arranged with air exhausting device at the inlet of High Temperature Furnaces Heating Apparatus and the outlet of cooling stove, air exhausting device is separately positioned on the top of High Temperature Furnaces Heating Apparatus and cooling stove, and the air outlet of air exhausting device is towards workpiece conveyor.
5, tunnel like continuous heat treating furnace according to claim 1, it is characterized in that: at least one hot blast agitator is set on High Temperature Furnaces Heating Apparatus, described hot blast agitator comprises motor and fan blade, motor is installed in the top of High Temperature Furnaces Heating Apparatus, the output shaft of motor is connected with fan blade, and fan blade places High Temperature Furnaces Heating Apparatus inside.
6, tunnel like continuous heat treating furnace according to claim 1 is characterized in that: be provided with extractor fan at the cool furnace top, described extractor fan is connected with cool furnace is inner.
7, according to any described tunnel like continuous heat treating furnace of claim 1 to 6, it is characterized in that: described workpiece conveyor comprises the live roll on support and the equidistant mounting bracket, between the live roll of preheating oven extension, be connected to a travelling belt independently by chain, be positioned at preheating oven, be connected to another independently travelling belt by chain between the live roll between High Temperature Furnaces Heating Apparatus and the cooling stove, be connected to another independently travelling belt by chain in cool furnace and between the live roll of cool furnace extension, each independently travelling belt be respectively arranged with a drive unit, drive unit respectively by chain with each independently travelling belt be connected.
8, tunnel like continuous heat treating furnace according to claim 1 is characterized in that: described oxygen obstruction device is to be fixed on the support of workpiece conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200495095U CN201209154Y (en) | 2008-06-20 | 2008-06-20 | Tunnel type continuous heat treating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200495095U CN201209154Y (en) | 2008-06-20 | 2008-06-20 | Tunnel type continuous heat treating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201209154Y true CN201209154Y (en) | 2009-03-18 |
Family
ID=40479883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200495095U Expired - Fee Related CN201209154Y (en) | 2008-06-20 | 2008-06-20 | Tunnel type continuous heat treating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201209154Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2479553A (en) * | 2010-04-14 | 2011-10-19 | Afc Holcroft | Aluminium Brazing |
| WO2018126502A1 (en) * | 2017-01-03 | 2018-07-12 | 蔡欲期 | Shell mold sintering device and method |
| CN110849490A (en) * | 2019-11-04 | 2020-02-28 | 成都肯保捷芯辰传感器有限公司 | Treatment method and treatment device for high-temperature sensor probe shell for automobile exhaust |
-
2008
- 2008-06-20 CN CNU2008200495095U patent/CN201209154Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2479553A (en) * | 2010-04-14 | 2011-10-19 | Afc Holcroft | Aluminium Brazing |
| GB2479553B (en) * | 2010-04-14 | 2012-07-18 | Afc Holcroft | Aluminium brazing |
| US8714432B2 (en) | 2010-04-14 | 2014-05-06 | Afc-Holcroft | Apparatus for and method of brazing aluminium products with closed loop conveyor within the furnace |
| WO2018126502A1 (en) * | 2017-01-03 | 2018-07-12 | 蔡欲期 | Shell mold sintering device and method |
| CN110849490A (en) * | 2019-11-04 | 2020-02-28 | 成都肯保捷芯辰传感器有限公司 | Treatment method and treatment device for high-temperature sensor probe shell for automobile exhaust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Tunnel type continuous heat treating furnace Effective date of registration: 20130819 Granted publication date: 20090318 Pledgee: Dongguan rural commercial bank, Limited by Share Ltd, Tangxia branch Pledgor: Dongguan Fengyu Motor Co., Ltd. Registration number: 2013990000589 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150209 Granted publication date: 20090318 Pledgee: Dongguan rural commercial bank, Limited by Share Ltd, Tangxia branch Pledgor: Dongguan Fengyu Motor Co., Ltd. Registration number: 2013990000589 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Tunnel type continuous heat treating furnace Effective date of registration: 20150226 Granted publication date: 20090318 Pledgee: CITIC Bank, Limited by Share Ltd, Dongguan branch Pledgor: Dongguan Fengyu Motor Co., Ltd. Registration number: 2015990000159 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20150620 |
|
| EXPY | Termination of patent right or utility model |