CN201793653U - Protective atmosphere thermal treatment electric pit furnace - Google Patents
Protective atmosphere thermal treatment electric pit furnace Download PDFInfo
- Publication number
- CN201793653U CN201793653U CN2010205488470U CN201020548847U CN201793653U CN 201793653 U CN201793653 U CN 201793653U CN 2010205488470 U CN2010205488470 U CN 2010205488470U CN 201020548847 U CN201020548847 U CN 201020548847U CN 201793653 U CN201793653 U CN 201793653U
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- Prior art keywords
- sealing
- protective atmosphere
- retort
- thermal treatment
- oil groove
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Abstract
The utility model relates to a protective atmosphere thermal treatment electric pit furnace, which comprises a furnace pot, a furnace cover, an intake pipe, a lifting appliance, an air guide system, a sealing groove, an electric drive pusher, a crow bar, a supporting plate, a sealed oil groove and an ejector rod, wherein the air guide system comprises a circulating motor, a fan and an air guide barrel; the lifting appliance and the air guide barrel are sealed by the sealing groove formed on the lifting appliance; the electric drive pusher is pivotally connected with the crow bar, and drives the crow bar to rotate; the supporting plate is connected to one end of the crow bar, and is driven by the crow bar to move up and down; the sealed oil groove is formed on the supporting plate; and one end of the ejector rod is fixed at the bottom of the oil groove, and the other end of the ejector rod supports the air guide barrel and drives the air guide barrel to move up and down so as to realize sealing. In the process of opening the furnace cover and lifting a work piece out, the work piece does not contact with fresh air, so the thermal treatment electric furnace of the utility model avoids or reduces the oxidation and decarburization of the work piece in the process.
Description
[technical field]
The utility model relates to a kind of thermal treatment electric furnace, is specifically related to a kind of well formula protective atmosphere thermal treatment electric furnace, belongs to the material heat treatment equipment technical field.
[background technology]
At present; traditional well formula gas atmosphere stove; as common cementing furnace; nitriding furnace; or be used for the heating of other protective atmosphere after these type of furnace transformations; its basic structure is by body of heater; bell; temperature controlling system, retort, circulation Air System; the protective atmosphere import system; several parts of furnace cover lifting system are formed, and no matter these type of furnaces are to be used for thermo-chemical treatment (carburizing; the multiple permeation of nitriding or these elements) still is used for other protective atmosphere heating (for ease of narration, below above-mentioned various processing all be called the protective atmosphere heating); as long as suitable operation; workpiece is placed on and carries out in the stove in the heat-treatment process, and its surface can well be protected, and the oxidation and decarbonization phenomenon can not occur; but the workpiece heat treated finishes; opening the bell fresh air will enter in the stove, thus begin to carry out in the process of subsequent disposal from opening bell to from stove, taking out workpiece, because workpiece temperature higher (general temperature is more than 500 ℃); workpiece directly contacts with air, and workpiece is easy to occur the oxidation and decarbonization phenomenon.For traditional well formula gas atmosphere electric furnace, above problem can't solve.Except that technology particular requirement workpiece is wanted the oxide treatment, the use properties that oxidation and decarbonization generally all can influence its follow-up manufacturing procedure or workpiece to some extent appears in workpiece.
Therefore, for avoiding the problems referred to above, the necessity of really going provides a kind of well formula protective atmosphere thermal treatment electric furnace of novel structure, to overcome described defective of the prior art.
[utility model content]
For addressing the above problem; the purpose of this utility model is to provide a kind of well formula protective atmosphere thermal treatment electric furnace; this thermal treatment electric furnace makes workpiece consistent with this type of equipment work principle of tradition when thermo-chemical treatment or protective atmosphere heating; heating finishes and can directly not contact with ozone when taking out; the surface can oxidation and decarbonization in this process to guarantee workpiece; and can carry out follow-up corresponding various manipulation as required, make in the entire treatment process workpiece can oxidation and decarbonization or significantly reduced oxidation and decarbonization.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of well formula protective atmosphere thermal treatment electric furnace, and it comprises retort, bell, inlet pipe, suspender, Air System, sealing groove, electric pushrod, crowbar, supporting plate, sealing oil groove and push rod; Wherein, the sealing of described bell and retort is provided with; Described inlet pipe feeds in the retort; Described suspender is arranged in the retort; Described Air System comprises circulation motor, fan and wind-guiding bucket, and described suspender and wind-guiding bucket are by being arranged at the sealing groove sealing on the suspender; Described electric pushrod and crowbar articulate, and it drives crowbar and rotates; Described supporting plate is connected to an end of crowbar, promotes supporting plate by crowbar and moves up and down; Described sealing oil groove is installed on the supporting plate; Described push rod one end is fixed on the sealing oil trench bottom, and the other end supports described wind-guiding bucket and drives the wind-guiding bucket and moves up and down; Described heat resisting pipe upper end is welded on the retort, and the lower end is stretched in the sealing oil groove, thereby realizes sealing.
Preferably, described heat resisting pipe is positioned at the retort bottom, and described push rod passes heat resisting pipe.
Preferably, the cylindrical structure of described wind-guiding bucket, its upper end is flange arrangement and links to each other with suspender.
Preferably, further be coated with one deck body of heater in the described retort outside.
Preferably, be provided with machine oil in described sealing oil groove, described push rod one end is fixed on the sealing oil trench bottom.
Preferably, so further be provided with a bracing frame in the bottom of ventilating duct.
Compared with prior art; the utlity model has following beneficial effect: well formula protective atmosphere thermal treatment electric furnace of the present utility model is consistent with this type of type of furnace principle of tradition in heat-treatment process; when opening bell taking-up workpiece; by the Air System that is provided with; molten metal or fused salt in suspender and the last sealing groove thereof; can form workpiece top and lateral enclosed space jointly; because the protective atmosphere proportion of heating is little; protective atmosphere can not overflow; fresh air can not enter above-mentioned enclosed space yet; so guarantee to open bell and hang out in the process of workpiece; the protected atmosphere protection of workpiece; red-hot workpiece can not contact with ozone; so can protect the workpiece can oxidized decarburization in this process, thus the disadvantageous effect that the oxidation and decarbonization that the therefore process eliminated produces brings.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is Air System of the present utility model and the working state figure of suspender when heating.
Fig. 3 is Air System and the working state figure of suspender when coming out of the stove of the present utility model.
[embodiment]
See also shown in the Figure of description 1 to 3; the utility model is a kind of well formula protective atmosphere thermal treatment electric furnace, and it is made up of retort 10, bell 3, inlet pipe 1, suspender 8, Air System, sealing groove 6, electric pushrod 14, crowbar 17, supporting plate 18, members such as sealing oil groove 16, push rod 12 and bracing frame 11.
Wherein, described bell 3 is arranged at the top of retort 10, and itself and retort 10 sealings are provided with.Described inlet pipe 1 feeds in the retort 10, and is provided with some heat resisting pipes 13 in the bottom of described retort 10.This heat resisting pipe 13 upper ends welding and UNICOM are on retort 10, and the lower end is stretched in the sealing oil groove 16, and described suspender 8 is arranged in the retort 10.These retort 10 outsides further are coated with one deck body of heater 5.
Described Air System comprises circulation motor 2, fan 4 and wind-guiding bucket 9.Described suspender 8 seals by the sealing groove 6 that is arranged on the suspender 8 with wind-guiding bucket 9.Described wind-guiding bucket 9 cylindrical structures, its upper end is flange arrangement (not label) and links to each other with suspender 8.Contain molten metal (aluminium, aluminum magnesium alloy, zinc and alloy thereof, lead and alloy thereof, tin and alloy thereof) or inorganic salt (nitrate, chlorate, borate) in the described sealing groove 6.
Described electric pushrod 14 articulates with crowbar 17, and it drives crowbar 17 and rotates.Described supporting plate 18 is connected to an end of crowbar 17, promotes supporting plate 18 by crowbar 17 and moves up and down.Described sealing oil groove 16 is installed on the supporting plate 18.The welding of described heat resisting pipe 13 upper ends also is communicated on the retort 10, and the lower end deeply seals below oil groove 16 machine oil 15 liquid levels, thereby realizes sealing; Described push rod 12 passes heat resisting pipe 13, and the one end is connected in sealing oil groove 16 bottoms, and the other end supports described wind-guiding bucket 9 and drives wind-guiding bucket 9 and moves up and down, and makes between interior Air System of stove and the suspender 8 and forms wind-guiding state or the air-tight state that normal heating is handled.Be provided with machine oil 15 in described sealing oil groove 16, described heat resisting pipe 13 1 ends go deep into below machine oil 15 liquid levels, guarantee that air can not enter in the stove by retort 10 bottom heat resisting pipes 13.
The principle of work of well formula protective atmosphere thermal treatment electric furnace of the present utility model is as follows:
The workpiece dress that will carry out the protective atmosphere heat treated is hung on the suspender 8, and places in the process furnace retort 10, and with bell 3 and retort 10 sealings, working order as illustrated in fig. 1 and 2 at this moment.Open the electric furnace heating power supply; workpiece on retort 10 and the suspender 8 begins to heat up; temperature rises to 200 ℃ and pass through the protective atmosphere that inlet pipe 1 feeds to be needed in retort 10; start the power supply of circulation motor 2 simultaneously, guarantee workpiece even heating on the suspender 8 by circulation motor 2, fan 4 and wind-guiding bucket 9 Air Systems.Treat that furnace temperature reaches the treatment temp of setting, be incubated and pick up counting that whole heat-processed furnace temperature is controlled by electric control system.The protective atmosphere heating finishes; open bell take out suspender 8 and on workpiece before; stop heating; stop air feed in stove; stop circulation motor 2; it is up to start electric push rod 14; it is descending that promotion crowbar 17 orders about supporting plate 18; the several sealing oil grooves 16 and the push rod 12 that are contained on the supporting plate 18 are descending; the wind-guiding bucket 9 that is supported on the push rod 12 is descending with push rod 12, makes 8 of wind-guiding bucket 9 and suspenders by the sealing groove on the suspender 6 with wherein molten metal or fused salt 7 form the sealing on tops; so finished protective atmosphere in the stove and remained on operation in the space between wind-guiding bucket 9 and the suspender 8, its state as shown in Figure 3.Above-mentioned work is finished; open bell; suspender 8 and wind-guiding bucket 9 are hung out together; like this from opening bell 3; in the process that hangs out suspender 8 and wind-guiding bucket 9; because the protective atmosphere proportion of heating is low weight; protective atmosphere in the enclosed space that forms between wind-guiding bucket 9 and the suspender 8 can not overflow; fresh air can not enter yet; so guarantee in the said process; workpiece on the suspender 8 all is under the protection of protective atmosphere, can effectively protect the not oxidized decarburization of this process workpiece like this, cooperates with corresponding subsequent processing just to guarantee that workpiece workpiece in the entire treatment process can or not reduce oxidation and decarbonization.
Above embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within made any modification, be equal to replacement, improvement etc., all should be included within the protection domain of this creation.
Claims (6)
1. a well formula protective atmosphere thermal treatment electric furnace is characterized in that, comprises retort, bell, inlet pipe, suspender, Air System, sealing groove, electric pushrod, crowbar, supporting plate, heat resisting pipe, sealing oil groove and push rod; Wherein, the sealing of described bell and retort is provided with; Described inlet pipe feeds in the retort; Described suspender is arranged in the retort; Described Air System comprises that circulation motor, fan and wind-guiding disclose, and described suspender and wind-guiding bucket are by being arranged at the sealing groove sealing on the suspender; Described electric pushrod and crowbar articulate, and it drives crowbar and rotates; Described supporting plate is connected to an end of crowbar, promotes supporting plate by crowbar and moves up and down; Described sealing oil groove is installed on the supporting plate; Described push rod one end is fixed on the oil groove bottom, and the other end supports described wind-guiding bucket and drives the wind-guiding bucket and moves up and down; Described heat resisting pipe upper end is welded on the retort, and the lower end is stretched in the sealing oil groove, thereby realizes sealing.
2. a kind of well formula protective atmosphere thermal treatment electric furnace as claimed in claim 1 is characterized in that, described heat resisting pipe is positioned at the retort bottom, and described push rod passes heat resisting pipe.
3. a kind of well formula protective atmosphere thermal treatment electric furnace as claimed in claim 1 is characterized in that, the cylindrical structure of described wind-guiding bucket, and its upper end is flange arrangement and links to each other with suspender.
4. a kind of well formula protective atmosphere thermal treatment electric furnace as claimed in claim 1 is characterized in that, further is coated with one deck body of heater in the described retort outside.
5. a kind of well formula protective atmosphere thermal treatment electric furnace as claimed in claim 1 is characterized in that, is provided with machine oil in described sealing oil groove, and described push rod one end is fixed on the oil groove bottom.
6. a kind of well formula protective atmosphere thermal treatment electric furnace as claimed in claim 1 is characterized in that, further is provided with a bracing frame in the bottom of described ventilating duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205488470U CN201793653U (en) | 2010-09-30 | 2010-09-30 | Protective atmosphere thermal treatment electric pit furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205488470U CN201793653U (en) | 2010-09-30 | 2010-09-30 | Protective atmosphere thermal treatment electric pit furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201793653U true CN201793653U (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205488470U Expired - Fee Related CN201793653U (en) | 2010-09-30 | 2010-09-30 | Protective atmosphere thermal treatment electric pit furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201793653U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152649A (en) * | 2014-08-06 | 2014-11-19 | 天津市热处理研究所有限公司 | Deep refrigeration processing equipment for metal material |
| CN106244978A (en) * | 2016-08-30 | 2016-12-21 | 张子青 | A kind of gas carburizing system |
| CN112921253A (en) * | 2019-12-05 | 2021-06-08 | 南京卓磊炉业科技有限公司 | Trolley type aluminum alloy aging furnace |
-
2010
- 2010-09-30 CN CN2010205488470U patent/CN201793653U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152649A (en) * | 2014-08-06 | 2014-11-19 | 天津市热处理研究所有限公司 | Deep refrigeration processing equipment for metal material |
| CN106244978A (en) * | 2016-08-30 | 2016-12-21 | 张子青 | A kind of gas carburizing system |
| CN112921253A (en) * | 2019-12-05 | 2021-06-08 | 南京卓磊炉业科技有限公司 | Trolley type aluminum alloy aging furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changsha Topwellwear Metal Material Science Co., Ltd. Assignor: Peng Zhihu Contract record no.: 2012430000208 Denomination of utility model: Protective atmosphere thermal treatment electric pit furnace Granted publication date: 20110413 License type: Exclusive License Record date: 20120827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20190930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |