CN200993527Y - High temperature resistance sintering furnace - Google Patents
High temperature resistance sintering furnace Download PDFInfo
- Publication number
- CN200993527Y CN200993527Y CN 200620166542 CN200620166542U CN200993527Y CN 200993527 Y CN200993527 Y CN 200993527Y CN 200620166542 CN200620166542 CN 200620166542 CN 200620166542 U CN200620166542 U CN 200620166542U CN 200993527 Y CN200993527 Y CN 200993527Y
- Authority
- CN
- China
- Prior art keywords
- furnace shell
- heater
- heat
- furnace
- high temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A high temperature electric resistance sintering furnace, comprising a furnace shell, a top cover fixed to the top of the furnace shell, a chassis fixed to the bottom of the furnace shell, a crucible mounted in middle of the furnace shell, a columnar heating unit that covers the crucible, and a columnar heat shield that covers the heating unit; wherein, a gap exists between the heat shield and the heating unit, the heat shield is wrapped with insulating cotton, the lower part of the heating unit is connected to electrodes via conducting poles, a cooling water tank is provided in the furnace shell, top cover, and chassis respectively, a temperature measuring tube is mounted on the upper part of the furnace shell, an evacuation tube is mounted on the lower part of the furnace shell, and an exhaust tube is mounted on the top cover. The utility model is characterized in high electro-thermal conversion efficiency, power saving, high heat-insulation performance, quick heating, long service life of the heating unit, and up to 2500 Celsius degree temperature in the furnace; the utility model can be used for sintering industrial ceramic materials, such as silicon carbide, boron carbide, and aluminum oxide.
Description
Technical field
The utility model relates to the industrial ceramics sintering furnace.
Background technology
During industrial ceramics is produced at present, the main power frequency that adopts, intermediate frequency, Efco-Northrup furnace, induction furnace has the carbonaceous furnace lining, furnace lining is peripherally equipped with inductor, inductor is converted into magnetic energy with electric energy, magnetic energy acts on the carbonaceous furnace lining with magnetic eddy current form, the carbonaceous furnace lining is converted to heat energy with the magnetic eddy current, thereby in body of heater, produce the high-temperature region more than 2200 ℃, with fusing or sintering high-melting point metal, nonmetal, ore, the weak point of induction furnace is: electric energy is not to be converted into heat energy, but is converted into magnetic energy earlier, and electric energy has very big loss in being converted into the process of magnetic energy, magnetic energy has very big loss again in being converted into the process of heat energy, thereby cause very power consumption of induction furnace, and preheating time is long, and sintering efficient is low.
The utility model content
The purpose of this utility model is for providing a kind of high temperature resistance sintering furnace, its electric conversion efficiency height, economize on electricity, good heat insulating, quick heating, heater long service life.
For achieving the above object, the utility model is by the following technical solutions:
A kind of high temperature resistance sintering furnace, has furnace shell, the top of furnace shell is connected with top cover, the bottom of furnace shell is connected with the chassis, it is characterized in that: furnace shell central authorities are provided with crucible, the outside of crucible is covered with columnar heater, the outside of heater is covered with columnar heat screen, leave the space between heat screen and the heater, the heat screen outside is enclosed with heat-preservation cotton, and the bottom of heater links to each other with electrode by conductive pole, be provided with bosh in described furnace shell, top cover, the chassis, temperature tube is equipped with on the top of furnace shell, and vacuum-pumping tube is equipped with in the bottom, on the described top cover blast pipe is housed.
Described heat screen is equipped with heat-preservation cotton by the supporting of the bracket on the chassis in this bracket, and the cylindrical shape hanger is equipped with at the top of heat screen, and the outer of described crucible is suspended on this hanger, is placed with incubation chamber in the centre bore of hanger, and heat-preservation cotton is housed in the incubation chamber.Described crucible is by columnar bracket supports, in this cylinder-shaped bracket heat-preservation cotton is housed, described heat screen is by the bearing plate of annular, described heater is supported by collet, the lower edge of heater is embedded in the groove of collet, the lower edge of heater has inside inclination angle, and the groove of collet has corresponding outside inclination angle.Sheath is equipped with in the outside of described conductive pole, leaves the space between sheath and the conductive pole, and the arranged outside of sheath has incubation chamber.Circular hole is arranged at the bottom of described electrode, and contact conductor is housed in the circular hole.Be provided with felt pad between described electrode and the chassis.Have slotted eye on the described heater.Described furnace shell is provided with the inert gas ascending pipe.
The utility model has following positive beneficial effect:
Quick heating: the material of heater is a graphite, and graphite is the conductor with high resistivity, and high temperature resistant, and after the energising, heater utilizes the resistive performance heating of self, electric conversion efficiency height.
Good heat insulation: be enclosed with heat-preservation cotton around the heat screen, the peripheral disposition of conductive pole has muff, also is correspondingly provided with heat-preservation cotton above or below the crucible, and heat is not easy to distribute, thermal efficiency height.
The heater long service life: heater is supported by collet, the lower edge of heater has inside molding inclination angle, the groove of collet has outside molding inclination angle, by the cooperation at inclination angle, the groove of heater lower edge and collet is coincide, heater is pressed on the collet, its adjacent surface closely contacts, conductive effect is good, can bearing great current and big voltage, the service life of having improved heater.
Be widely used: temperature can reach 2500 degrees centigrade in the stove, can be used for the sintering of industrial ceramics such as carborundum, boron carbide, aluminium oxide.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the partial enlarged drawing of conductive pole among Fig. 1, electrode.
Fig. 3 is the three-dimensional outline drawing of heater among Fig. 1.
Fig. 4 is the structural representation of the utility model embodiment two.
Fig. 5 is the partial enlarged drawing of conductive pole among Fig. 4, electrode.
Fig. 6 is the three-dimensional outline drawing of heater among Fig. 4.
Fig. 7 is the structural representation of collet among Fig. 5.
The specific embodiment
Number in the figure
1 furnace shell, 101 boshes, 102 water inlet pipes, 103 outlet pipes
2 top covers, 201 boshes, 202 water inlet pipes, 203 outlet pipes
3 chassis, 301 boshes, 302 water inlet pipes, 303 outlet pipes
4 crucibles, 5 heaters, 501 horizontal slotted eye 6 heat screens 601 cover plates
602 wireways, 7 heat-preservation cotton, 8 conductive poles, 9 electrodes, 901 circular holes
10 screws, 11 temperature tubes, 111 quartz glass plates, 12 vacuum-pumping tubes
121 valves, 13 blast pipes, 131 valves, 14 ascending pipes, 141 valves
15 hangers, 16 brackets, 161 heat-preservation cotton, 17 incubation chamber
171 heat-preservation cotton, 18 felt pads, 21 supports, 211 heat-preservation cotton, 22 base plates
23 heaters, 231 edges, 232 vertical slotted eye 24 collets 241 grooves
25 sheaths, 26 incubation chamber, 261 heat-preservation cotton, 27 lowering or hoisting gears
Embodiment one: please refer to Fig. 1, Fig. 2, Fig. 3, the utility model is a kind of high temperature resistance sintering furnace, has furnace shell 1, top cover 2, chassis 3, and top cover 2 is fixed in the top of furnace shell 1 by bolt, and chassis 3 is fixed in the bottom of furnace shell 1 by bolt.Furnace shell 1 central authorities are provided with crucible 4, and the outside of crucible 4 is covered with columnar heater 5, and the outside of heater 5 is covered with columnar heat screen 6, leave the space between heat screen 6 and the heater 5, thereby play the effect of insulation.The outside of heat screen 6 is enclosed with heat-preservation cotton 7, and heat-preservation cotton 7 is the graphite cotton.The bottom of heater 5 is affixed by screw 10 and conductive pole 8, and there is internal thread in the hole, bottom of conductive pole 8, and the upper end of electrode 9 has external screw thread, and conductive pole 8 is affixed by internal and external screw thread with electrode 9.The material of heater 5, heat screen 6, conductive pole 8, electrode 9 is a graphite.Graphite has resistance and high temperature resistance property.Be provided with felt pad 18 between electrode 9 and the chassis 3.Have horizontal slotted eye 501 on the heater 5 as shown in Figure 3.Circular hole 901 is arranged at the bottom of electrode 9, in the circular hole 901 contact conductor is housed.Be provided with bosh 101 in the furnace shell 1, bosh 101 is communicated with water inlet pipe 102, outlet pipe 103.Be provided with bosh 201 in the top cover 2, bosh 201 is communicated with water inlet pipe 202, outlet pipe 203.Be provided with bosh 301 in the chassis 3, bosh 301 is communicated with water inlet pipe 302, outlet pipe 303.
During use, the valve on the blast pipe 13 131 is closed, the valve on the inert gas ascending pipe 14 141 is closed.Valve on the vacuum-pumping tube 12 121 is opened, started aspiration pump, gas in the furnace shell 1 is extracted out, valve-off 121 then, open valve 131,141, inject argon gas by ascending pipe 14 in furnace shell 1.
Embodiment two: please refer to Fig. 4, Fig. 5, Fig. 6, Fig. 7, in the present embodiment, crucible 4 is by columnar support 21 supportings, and lowering or hoisting gear 27 is equipped with in the bottom of support 21, and heat-preservation cotton 211 is housed in the support 21.Thereby prevent that furnace heat from distributing downwards.Heat screen 6 is by base plate 22 supportings of annular, and cover plate 601 is equipped with at the top of heat screen 6, and wireway 602 is housed on the cover plate 601, and the top ports of wireway 602 is exposed to heat-preservation cotton 7.Heater 23 is by collet 24 supportings, and the lower edge 231 of heater 23 is embedded in the groove 241 of collet 24, and the lower edge of heater 23 has inside inclination angle, and the groove 241 of collet 24 has corresponding outside inclination angle.By the cooperation of angle, the lower edge 231 that makes heater 23 and groove 241 tight connectings of collet as shown in Figure 5, its adjacent surface closely contacts, conductive effect is good, can bearing great current and big voltage, the service life of having improved heater.The loading and unloading of crucible 4 are finished automatically by lowering or hoisting gear 27.Collet 24 is fixing with conductive pole 8 by screw 10, and conductive pole 8 is affixed by internal and external screw thread with electrode 9.Sheath 25 is equipped with in the outside of conductive pole 8, leaves the space between sheath 25 and the conductive pole 8, thereby forms insulation, and the arranged outside of sheath 25 has incubation chamber 26, and heat-preservation cotton 261 is housed in the box body of incubation chamber 26, thereby prevents that furnace heat from partly distributing from conductive pole.Heat-preservation cotton 261 is the graphite cotton, and circular hole 901 is arranged at the bottom of electrode 9, in the circular hole 901 contact conductor is housed.Be provided with felt pad 18 between electrode 9 and the chassis 3.In the present embodiment, have vertical slotted eye 232 on the heater 23 as shown in Figure 6.The material of heater 23, heat screen 6, conductive pole 8, electrode 9, screw 10, collet 24, sheath 25, incubation chamber 26 is a graphite.The utility model good heat insulating, quick heating, maximum temperature can reach 2500 ℃, but sintered silicon carbon, boron carbide, industrial ceramics such as aluminium oxide.
Claims (8)
1. high temperature resistance sintering furnace, has furnace shell, the top of furnace shell is connected with top cover, the bottom of furnace shell is connected with the chassis, it is characterized in that: furnace shell central authorities are provided with crucible, the outside of crucible is covered with columnar heater, the outside of heater is covered with columnar heat screen, leave the space between heat screen and the heater, the heat screen outside is enclosed with heat-preservation cotton, and the bottom of heater links to each other with electrode by conductive pole, be provided with bosh in described furnace shell, top cover, the chassis, temperature tube is equipped with on the top of furnace shell, and vacuum-pumping tube is equipped with in the bottom, on the described top cover blast pipe is housed.
2. high temperature resistance sintering furnace as claimed in claim 1, it is characterized in that: described heat screen is supported by the bracket on the chassis, in this bracket heat-preservation cotton is housed, the cylindrical shape hanger is equipped with at the top of heat screen, the outer of described crucible is suspended on this hanger, be placed with incubation chamber in the centre bore of hanger, heat-preservation cotton is housed in the incubation chamber.
3. high temperature resistance sintering furnace as claimed in claim 1, it is characterized in that: described crucible is by columnar bracket supports, in this cylinder-shaped bracket heat-preservation cotton is housed, described heat screen is by the bearing plate of annular, described heater is supported by collet, the lower edge of heater is embedded in the groove of collet, and the lower edge of heater has inside inclination angle, and the groove of collet has outside inclination angle.
4. high temperature resistance sintering furnace as claimed in claim 1 is characterized in that: sheath is equipped with in the outside of described conductive pole, leaves the space between sheath and the conductive pole, and the arranged outside of sheath has incubation chamber.
5. high temperature resistance sintering furnace as claimed in claim 1 is characterized in that: circular hole is arranged at the bottom of described electrode, and contact conductor is housed in the circular hole.
6. high temperature resistance sintering furnace as claimed in claim 1 is characterized in that: be provided with felt pad between described electrode and the chassis.
7. high temperature resistance sintering furnace as claimed in claim 1 is characterized in that: have slotted eye on the described heater.
8. high temperature resistance sintering furnace as claimed in claim 1 is characterized in that: described furnace shell is provided with the inert gas ascending pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620166542 CN200993527Y (en) | 2006-12-07 | 2006-12-07 | High temperature resistance sintering furnace |
| JP2007009367U JP3140258U (en) | 2006-12-07 | 2007-12-05 | Automatic sensing drawer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620166542 CN200993527Y (en) | 2006-12-07 | 2006-12-07 | High temperature resistance sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993527Y true CN200993527Y (en) | 2007-12-19 |
Family
ID=38946601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620166542 Expired - Fee Related CN200993527Y (en) | 2006-12-07 | 2006-12-07 | High temperature resistance sintering furnace |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3140258U (en) |
| CN (1) | CN200993527Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278893A (en) * | 2011-06-29 | 2011-12-14 | 宝纳资源控股(集团)有限公司 | Temperature control method for temperature control system of high-temperature furnace |
| CN106370007A (en) * | 2015-07-24 | 2017-02-01 | 天津海鸥表业集团有限公司 | Energy-saving furnace body in watch hairspring vacuum forming furnace |
| CN106714360A (en) * | 2017-01-10 | 2017-05-24 | 中国工程物理研究院材料研究所 | High temperature atmosphere pressure sintering furnace electrode common insulation fault maintenance method |
| CN107300323A (en) * | 2017-08-14 | 2017-10-27 | 核工业理化工程研究院 | Cold-crucible |
| CN113959222A (en) * | 2021-11-26 | 2022-01-21 | 中国原子能科学研究院 | High temperature furnace |
-
2006
- 2006-12-07 CN CN 200620166542 patent/CN200993527Y/en not_active Expired - Fee Related
-
2007
- 2007-12-05 JP JP2007009367U patent/JP3140258U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278893A (en) * | 2011-06-29 | 2011-12-14 | 宝纳资源控股(集团)有限公司 | Temperature control method for temperature control system of high-temperature furnace |
| CN106370007A (en) * | 2015-07-24 | 2017-02-01 | 天津海鸥表业集团有限公司 | Energy-saving furnace body in watch hairspring vacuum forming furnace |
| CN106370007B (en) * | 2015-07-24 | 2019-03-08 | 天津海鸥表业集团有限公司 | Energy-saving furnace body in watch hairspring vacuum forming furnace |
| CN106714360A (en) * | 2017-01-10 | 2017-05-24 | 中国工程物理研究院材料研究所 | High temperature atmosphere pressure sintering furnace electrode common insulation fault maintenance method |
| CN106714360B (en) * | 2017-01-10 | 2020-03-06 | 中国工程物理研究院材料研究所 | Maintenance method for common insulation fault of electrode of high-temperature atmosphere pressure sintering furnace |
| CN107300323A (en) * | 2017-08-14 | 2017-10-27 | 核工业理化工程研究院 | Cold-crucible |
| CN107300323B (en) * | 2017-08-14 | 2024-01-26 | 核工业理化工程研究院 | Water-cooled crucible |
| CN113959222A (en) * | 2021-11-26 | 2022-01-21 | 中国原子能科学研究院 | High temperature furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3140258U (en) | 2008-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200993527Y (en) | High temperature resistance sintering furnace | |
| CN202092461U (en) | Vacuum atmosphere tube furnace | |
| CN201495102U (en) | Small-size vertical type high temperature graphitized furnace | |
| CN102020411A (en) | Induction heating type nonmetal smelting method and system used thereby | |
| CN201819534U (en) | Fully automatic and vertical intermediate-frequency carbonization furnace | |
| CN107655333B (en) | Composite heating type heat treatment furnace | |
| CN201293543Y (en) | Large-capacity direct-current graphitization electric furnace apparatus | |
| CN101748247A (en) | Energy-saving heat treatment well type heating furnace | |
| CN102384646A (en) | Crucible, furnace body and crucible resistor furnace for realizing internally heating | |
| CN203657465U (en) | Energy-saving vacuum double-cavity maintaining furnace | |
| CN207815967U (en) | Two-tube immersion transverse-plug type electromagnetic induction holding furnace | |
| CN202145085U (en) | Energy-saving system for ore-smelting electric arc furnace | |
| CN205933249U (en) | Distributing type powder heating furnace | |
| CN202814068U (en) | Furnace hearth structure of induction heating smelting furnace | |
| CN206550316U (en) | A kind of energy-conserving and environment-protective oxygen-free copper bar vacuum continuous casting apparatus | |
| CN105018740A (en) | Vacuum reduction furnace for electromagnetic induction heating melting reduction of magnesium metal | |
| CN204324887U (en) | A kind of graphitizing furnace | |
| CN201514104U (en) | Electric pusher furnace for firing cadmium red glaze porcelain | |
| CN204240810U (en) | A kind of heating tube | |
| CN207135295U (en) | A kind of fixed mechanism of carborundum processing heater | |
| CN103134318A (en) | Crucible resistance furnace body capable of achieving internal heating | |
| CN201463533U (en) | Vacuum induction furnace body | |
| CN106498563B (en) | A kind of continuous superhigh temperature graphitizing furnace of induction auxiliary resistance formula | |
| CN213895603U (en) | All-electric melting glass melting furnace for producing high-strength float glass | |
| CN211090005U (en) | Embedded electromagnetic induction heating device and metal hot melting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20101207 |