CN201892412U - Sintering furnace with liftable crucible - Google Patents
Sintering furnace with liftable crucible Download PDFInfo
- Publication number
- CN201892412U CN201892412U CN2010206207934U CN201020620793U CN201892412U CN 201892412 U CN201892412 U CN 201892412U CN 2010206207934 U CN2010206207934 U CN 2010206207934U CN 201020620793 U CN201020620793 U CN 201020620793U CN 201892412 U CN201892412 U CN 201892412U
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- crucible
- graphite
- tank body
- tank
- sintering furnace
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Abstract
A sintering furnace with a liftable crucible comprises a cooling water circulation pipe of a tank and an electric jack for opening a cover, a lower crucible is arranged in the tank, an upper crucible with a plurality of small holes on the bottom is nested in the upper part of the lower crucible, and is fixed on the top of the tank by a crucible support, the bottom of the lower crucible is provided with a graphite carrier, and the graphite carrier, a graphite post and a lifting rod are connected together; metal electrodes are arranged on the outer wall of the tank and connected with graphite electrodes which are sealed by carbon felt and arranged in a high-temperature chamber, and a plurality of heating pipes are arranged on the graphite electrodes; the tank is provided with a suction pipe and an intake/exhaust pipe, the suction pipe is connected with a vacuumizing system, and the intake/exhaust pipe is connected with a protective gas pressurizing and depressurizing system; and the lower part of the outer wall of the tank is provided with an isolating valve which protects the vacuumizing system during internal pressurization. Processes, such as vacuum pre-sintering, the rise of the lower crucible, high-pressure blank filling in a hole, depressurization, the fall of the lower crucible and temperature reduction, can be carried out in the furnace all together, and the sintering furnace can be adapted to a variety of atmospheres, or the internal vacuum degree, the curve of positive pressure application and the curve of temperature rise can be regulated in order to optimize the production technique.
Description
Technical field
The utility model relates to a kind of sintering furnace, especially a kind of liftable sintering furnace of the crucible of afterwards executing high pressure that vacuumizes earlier.
Background technology
Sintering furnace is used very extensive as high-temperature service, but the technology of high temperature melting material filling blank hole is very backward, the preheating of blank, the fusing of material, high pressure packing blank, and the overturning crucible is toppled over the residue melt, and each link is all wanted manually-operated.The filling that present sintering furnace can not be used for blank strengthens, and is that when temperature was reduced to the temperature that can open fire door, the charges of blank and fusion were become one because can't realize separating of blank and charges in the condition of high temperature.By retrieval, September in 2009 Granted publication on the 16th patent " a kind of high temperature discharging device " belong to alternative manually in the condition of high temperature by the high temperature press plate mechanism, high temperature is embraced card, parallel moving mechanism, hydraulic elevating platform, Tilting mechanism finishes the level of high temperature material crucible, move up and down also and can finish 0-175 ° rotary movement, the feed liquid with in the high temperature material crucible is freely poured in the mould, the damage of having avoided high temperature discharging to bring for the staff, for high temperature discharging provides safe reliable method, and be high temperature discharging realization control automatically, the continuous production of equipment provides may.But this is the improvement of a link of overturning crucible, and---high pressure packing---blank that vacuumizes heating in the melt fill process of blank separates with the high temperature of residue charges integratedly is not resolved; In December, 2007, the patent " lowering or hoisting gear and the complex sintering furnace that uses this device " of Granted publication on the 19th was that a kind of order execution is used for the roasting technique of molded ceramic product and the complex sintering furnace of sintering process.Molded ceramic product is flatly transmitted along guide rail, enters roasting body of heater and sintering body of heater by order behind the lowering or hoisting gear lifting rotating basis, because body of heater is very little, and no high pressure in the stove.
Summary of the invention
The purpose of this utility model is the weak point that overcomes in the prior art, provides a kind of simple in structure, easy to operate, safe and reliable, time saving and energy saving crucible liftable sintering furnace.
For achieving the above object, sintering furnace of the present utility model comprises the tank body that has seal cover, is located at cooling water circulation pipe, the electronic jack of uncapping in the tank body interlayer, adds depressurized system, pumped vacuum systems; Be provided with down crucible in the described tank body, the top of following crucible is set with the last crucible that the bottom has some apertures, last crucible is supported and fixed on tank body top through crucible, the bottom of following crucible is provided with the graphite crucible holder and pulls, the bottom that the graphite crucible holder is pulled is provided with the graphite post, and the bottom of graphite post is provided with coupled and passes the elevating mechanism of tank base; Up and down two crucibles around be provided with the heat-insulation layer of sealing, tank wall is provided with metal electrode, metal electrode passes tank body and is connected with the graphite electrode that stretches in the heat-insulation layer, graphite electrode is provided with the heat-generating pipe to the crucible heating; The tank wall bottom is provided with the isolating valve that links to each other with pumped vacuum systems.
Described elevating mechanism comprises the turbine that links to each other with reductor, the elevating lever that links to each other with the graphite post, the top of elevating lever is provided with the vacuum seal assembly that is fixed in tank base, the below of vacuum seal assembly is provided with the wiper seal dish that matches with it, and the bottom of elevating lever is provided with the rack segments that is meshed with turbine; Described metal electrode is 3～6, evenly arranges; Described vacuum seal assembly is by the tubaeform sleeve pipe that Open Side Down, be located at sealing ring, the flange of tubaeform sleeve pipe porch and have the annular groove of sealing ring to constitute successively.
Beneficial effect: the utility model sintering furnace adopts the constant temperature field optimal design,---inserts crucible---high pressure packing blank---integrated the finishing in the stove of degradation technical process under the inserts crucible of rising of can realizing the vacuum pre-burning, whole technical process can adopt computer control, different according to its blank purposes and technology, multiple atmosphere be can adapt in the stove, the pressurized filling curve of vacuum in the stove, malleation and heating curve also can be adjusted to optimize production technology.Owing in the high temperature chamber, be provided with up and down two crucibles, realize going up in the crucible in the blank and following crucible the contact of inserts and separate by the lifting of crucible down.The operating personnel only need put into blank to be filled the last crucible that is fixed on sintering furnace, and inserts is put into liftable crucible down.By the melt that vacuumizes, heats, down crucible rising, charge into that the protective gas pressurization is filled, protective gas is reclaimed in release; and then fall the position by following crucible and make the cooling that separates, lowers the temperature of blank and residue inserts; realize whole operation process with programme-control; after operation process finished, the operating personnel took out warehouse-in with product.Since the omnidistance sealing of whole process, and adopt the protective gas atmosphere, and process environments is good, the thermal efficiency is high, operating environment improves energy-conserving and environment-protective greatly.Two compacting formulas of vacuum of the present utility model and high pressure conversion can be improved the quality of products greatly, vacuumize the micropore of having expanded blank, the back-pressure when having eliminated the inserts filling perforation, and the permeability height of product, uniformity are strong.Solved the difficult problem of inserts fusing among the present preparation technology, the necessary manual segmentation operation of blank filling.It is simple in structure, and is easy to operate, safe and reliable, and result of use is good, has practicality widely.
Description of drawings
Fig. 1 is a furnace binding schematic diagram of the present utility model.
Among the figure: the 1-turbine; The 2-elevating lever; 3-wiper seal dish; The 4-flange; 5-vacuum seal assembly; 6-graphite post; The holder of 7-graphite crucible is pulled; The 8-isolating valve; 9 – metal electrodes; 10-graphite electrode; Crucible under the 11-; The 12-heat-generating pipe; The 13-crucible supports; The last crucible of 14-; The 15-heat-insulation layer; The electronic jack of 16-; The 17-tank body.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
The liftable sintering furnace of crucible of the present utility model, mainly by last crucible 14, down crucible 11, wiper seal dish 3, vacuum seal assembly 5, graphite post 6, graphite crucible holder pull 7, isolating valve 8, metal electrode 9, graphite electrode 10, heat-generating pipe 12, heat-insulation layer 15, tank body 17, add depressurized system, pumped vacuum systems constitutes.Tank body 17 is provided with the seal cover that is interlocked with it, seal cover is provided with the electronic jack 16 of uncapping, be provided with the cooling water circulation pipe in the interlayer of tank body 17, two crucibles are located in the heat-insulation layer 15 of tank body 17 up and down, be provided with heat-insulation layer 15 around two crucibles with the carbon felt seal, following crucible 11 is located at the bottom of hot room in the tank body 17, last crucible 14 is sleeved on down the top of crucible 11, the bottom of last crucible 14 has some apertures, last crucible 14 is fixed on the top of tank body 17 by crucible support 13, the bottom of following crucible 11 is provided with the graphite crucible holder and pulls 7, the graphite crucible holder is pulled 7 times graphite post 6 is housed, the graphite crucible holder is pulled 7 and is crucible chassis circle, handle and the graphite post 6 that there is a band jack at the middle part be fit mutually, the bottom of graphite post 6 is provided with coupled elevating lever 2, elevating lever 2 passes the vacuum seal assembly 5 that is fixed in tank body 17 bottoms, the tooth bar of elevating lever 2 cooperates with the turbine that reductor drives and forms elevating mechanism, elevating mechanism comprises the turbine 1 that links to each other with reductor, elevating lever 2 rack segments that are meshed with turbine 1, elevating lever 2 is provided with wiper seal dish 3 and is with the vacuum seal assembly 5 that is fixed in tank body 17 bottoms, and wherein wiper seal dish 3 is end caps that ring-shaped lug is arranged; Vacuum seal assembly 5 is by the tubaeform sleeve pipe that Open Side Down, be located at sealing ring, the flange 4 of tubaeform sleeve pipe porch and have the annular groove of sealing ring to constitute successively.Tank body 17 outer walls are provided with metal electrode 9 and link to each other with metal electrode 9 and stretch into graphite electrode 10 in the heat-insulation layer 15, and metal electrode 9 is 3～6, evenly arranges.Graphite electrode 10 is provided with a plurality of heat-generating pipes 12; Tank body 17 is provided with exhaust tube and air inlet-outlet pipe, and exhaust tube connects pumped vacuum systems, and air inlet-outlet pipe connects protective gas and adds depressurized system; Tank body 17 outer wall bottoms are provided with the isolating valve 8 that links to each other and shield with pumped vacuum systems.
Operation principle: two crucibles in the tank body 17, following crucible 11 dress inserts, liftable; Last crucible 14 packaging blanks maintain static in stove, and the bottom is a loose structure.The inserts of fusion entered crucible 14 submergence blanks by the bottom hole when crucible 11 rose instantly; The tooth bar of drive shaft turbine 1 transmission lifting rod 2 of reductor moves up and down.After charging finishes, to tank body 17(pressure stove) the energising intensification, following crucible 11 is in position shown in the accompanying drawing 1 (lowest order), vacuumizes and heat up to start synchronously, and the vacuum seal assembly 5 between elevating lever 2 and tank body 17 guarantees required vacuum in the stove.When vacuum reaches setting value, quit work automatically through control system control vavuum pump.Along with the rising of temperature, the inserts fusing in the following crucible 11, crucible 11 is up under elevating lever 2 liftings, and the inserts of fusion enters by the bottom hole of last crucible 14 in the following crucible 11; The blank that following crucible 11 goes upward in the crucible 14 all is submerged in the inserts, and the ring-shaped lug of wiper seal this moment dish 3 just embeds annular groove and the butt joint that sealing ring is arranged in the vacuum sealing device 5, the high pressure sealing when guaranteeing to pressurize in the stove.The same with the normal sintering stove, in stove, charge into argon gas or nitrogen protection gas by compression system, furnace pressure rises to the force value of technique initialization and by after the setting-up time voltage stabilizing, opens recovery valve and the interior gas of atmospheric valve toilet-cleaning jar on the gas recovery pipe road; After release finished, following crucible 11 was descending, and the blank in the last crucible 14 separates with residue inserts in the following crucible 11, avoided cooling off the back blank and remained inserts and lump.Having cooling water circulation, blank to be cooled to operating personnel after the room temperature in tank body 17 interlayers can open the product that the loam cake of tank body 17 will go up in the crucible and take out warehouse-in.
Claims (4)
1. liftable sintering furnace of crucible comprises the tank body (17) that has seal cover, is located at cooling water circulation pipe, electronic jack (16) in tank body (17) interlayer, adds depressurized system, pumped vacuum systems; It is characterized in that: be provided with down crucible (11) in the described tank body (17), the top of following crucible (11) is set with the last crucible (14) that the bottom has some apertures, last crucible (14) supports (13) through crucible and is fixed on tank body (17) top, the bottom of following crucible (11) is provided with the graphite crucible holder and pulls (7), the bottom that (7) are pulled in the graphite crucible holder is provided with graphite post (6), and the bottom of graphite post (6) is provided with coupled and passes the elevating mechanism of tank body (17) bottom; Up and down two crucibles around be provided with the heat-insulation layer (15) of sealing, tank body (17) outer wall is provided with metal electrode (9), metal electrode (9) passes tank body (17) and is connected with the graphite electrode (10) that stretches in the heat-insulation layer (15), and graphite electrode (10) is provided with the heat-generating pipe (12) to the crucible heating; Tank body (17) outer wall bottom is provided with the isolating valve (8) that links to each other with pumped vacuum systems.
2. the liftable sintering furnace of crucible according to claim 1, it is characterized in that: described elevating mechanism comprises the turbine (1) that links to each other with reductor, the elevating lever (2) that links to each other with graphite post (6), the top of elevating lever (2) is provided with the vacuum seal assembly (5) that is fixed in tank body (17) bottom, the below of vacuum seal assembly (5) is provided with the wiper seal dish (3) that matches with it, and the bottom of elevating lever (2) is provided with the rack segments that is meshed with turbine (1).
3. the liftable sintering furnace of crucible according to claim 1 is characterized in that: described metal electrode (9) is 3～6, evenly arranges.
4. the liftable sintering furnace of crucible according to claim 2 is characterized in that: described vacuum seal assembly (5) is by the tubaeform sleeve pipe that Open Side Down, be located at sealing ring, the flange (4) of tubaeform sleeve pipe porch and have the annular groove of sealing ring to constitute successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206207934U CN201892412U (en) | 2010-11-24 | 2010-11-24 | Sintering furnace with liftable crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206207934U CN201892412U (en) | 2010-11-24 | 2010-11-24 | Sintering furnace with liftable crucible |
Publications (1)
| Publication Number | Publication Date |
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| CN201892412U true CN201892412U (en) | 2011-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206207934U Expired - Lifetime CN201892412U (en) | 2010-11-24 | 2010-11-24 | Sintering furnace with liftable crucible |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968308A (en) * | 2010-11-24 | 2011-02-09 | 中国矿业大学 | Crucible-lifting sintering furnace |
| CN102878796A (en) * | 2012-09-18 | 2013-01-16 | 西安康本材料有限公司 | Well type high-temperature resistance furnace for heat treatment of PAN (polyacrylonitrile) based carbon felt |
| CN105033399A (en) * | 2015-06-26 | 2015-11-11 | 郑英 | Protective gas heat treatment tank sealing structure capable of resisting cold and hot deformation through vacuumization |
| WO2018028286A1 (en) * | 2016-08-10 | 2018-02-15 | 辽宁爱尔创生物材料有限公司 | Sintering furnace |
| CN108680007A (en) * | 2018-06-29 | 2018-10-19 | 宁夏昇力恒真空设备有限公司 | High-temperature vacuum sintering furnace evolute vacuum-pumping density sealing assembly and vacuumize batch can |
| CN117259730A (en) * | 2023-11-23 | 2023-12-22 | 湖南诺伯特高温设备股份有限公司 | High-temperature high-pressure infiltration furnace |
-
2010
- 2010-11-24 CN CN2010206207934U patent/CN201892412U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968308A (en) * | 2010-11-24 | 2011-02-09 | 中国矿业大学 | Crucible-lifting sintering furnace |
| CN101968308B (en) * | 2010-11-24 | 2012-09-05 | 中国矿业大学 | Crucible-lifting sintering furnace |
| CN102878796A (en) * | 2012-09-18 | 2013-01-16 | 西安康本材料有限公司 | Well type high-temperature resistance furnace for heat treatment of PAN (polyacrylonitrile) based carbon felt |
| CN105033399A (en) * | 2015-06-26 | 2015-11-11 | 郑英 | Protective gas heat treatment tank sealing structure capable of resisting cold and hot deformation through vacuumization |
| WO2018028286A1 (en) * | 2016-08-10 | 2018-02-15 | 辽宁爱尔创生物材料有限公司 | Sintering furnace |
| US10995992B2 (en) | 2016-08-10 | 2021-05-04 | Liaoning Upcera Co., Ltd | Sintering furnance |
| CN108680007A (en) * | 2018-06-29 | 2018-10-19 | 宁夏昇力恒真空设备有限公司 | High-temperature vacuum sintering furnace evolute vacuum-pumping density sealing assembly and vacuumize batch can |
| CN108680007B (en) * | 2018-06-29 | 2024-04-19 | 昇力恒(宁夏)真空科技股份公司 | External rotation type vacuumizing sealing assembly for high-temperature vacuum sintering furnace and vacuumizing charging bucket |
| CN117259730A (en) * | 2023-11-23 | 2023-12-22 | 湖南诺伯特高温设备股份有限公司 | High-temperature high-pressure infiltration furnace |
| CN117259730B (en) * | 2023-11-23 | 2024-01-19 | 湖南诺伯特高温设备股份有限公司 | High-temperature high-pressure infiltration furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110706 Effective date of abandoning: 20130710 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110706 Effective date of abandoning: 20130710 |
|
| RGAV | Abandon patent right to avoid regrant |