CN204648943U - A kind of microwave vacuum ventilation hot pressing furnace - Google Patents
A kind of microwave vacuum ventilation hot pressing furnace Download PDFInfo
- Publication number
- CN204648943U CN204648943U CN201520222301.9U CN201520222301U CN204648943U CN 204648943 U CN204648943 U CN 204648943U CN 201520222301 U CN201520222301 U CN 201520222301U CN 204648943 U CN204648943 U CN 204648943U
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- molybdenum
- stainless steel
- microwave
- vacuum cavity
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- 238000007731 hot pressing Methods 0.000 title claims abstract description 22
- 238000009423 ventilation Methods 0.000 title claims abstract description 14
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 40
- 239000011733 molybdenum Substances 0.000 claims abstract description 40
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 239000010935 stainless steel Substances 0.000 claims abstract description 28
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 28
- 238000004826 seaming Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000005855 radiation Effects 0.000 claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009768 microwave sintering Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 21
- 238000005245 sintering Methods 0.000 description 11
- 239000000523 sample Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 239000012774 insulation material Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model relates to a kind of microwave vacuum ventilation hot pressing furnace, belongs to microwave metallurgical equipment technical field.In this stove, vacuum cavity inside is through hydraulic system, in hydraulic system, stainless steel upperpush rod connects molybdenum seaming chuck, and stainless steel upperpush rod is provided with pressure sensor, molybdenum push-down head platform is supported by stainless steel down-pressed pole, insulation sleeve is laid outside molybdenum push-down head platform, stainless steel upperpush rod is connected by sealing flange with vacuum cavity shell with stainless steel down-pressed pole, vacuum cavity top is provided with microwave generator, microwave generator is connected with switch board, vacuum cavity side connects vacuum generating device and gas cylinder, the bell coordinated with vacuum cavity is provided with watch window, infrared radiation thermometer and Pressure gauge, Pressure gauge with establish valvular exhaust outlet and be communicated with.This stove is the advantage combining hot pressing, vacuum, microwave sintering, and overcomes the problems such as current hot pressing furnace sealing is inadequate, vacuum is not high, equipment leaky wave, insulation is not easy to operate, heat insulation effect is not good.
Description
Technical field
The utility model relates to a kind of microwave vacuum ventilation hot pressing furnace, belongs to microwave metallurgical equipment technical field.
Background technology
Vacuum-sintering not only can make sample completely cut off oxidizing atmosphere or pollution gas, also can reduce the saturated vapor pressure of material, also can reduce the reaction temperature of some chemical reaction, save the energy.Hot pressed sintering can make sintered specimen composition even tissue, and density is higher, better performances.So empty hot pressing furnace is widely used in the sintering of carbide alloy, function ceramics, sintered metal product etc.Current vacuum hotpressing stove mainly relies on convection current or contact-type heating, as intermediate frequency power supply heating, and graphite heating etc.Graphite heating is polluted large, and the efficiency of heating surface is low, and easily occurs the situations such as heating tube is cracked, and the time of intermediate frequency power supply heating is long, and cost compare is high.
Heating using microwave can realize the contactless Fast Heating of sample itself, compared to traditional vacuum stove contact heat transfer heating the thermal efficiency and energy utilization rate higher, and need not through heat transfer in microwave heating process, thus thermal inertia is not had, thermal source can instantaneously be cut off and heating in time, be convenient to the control of temperature, also prevent the energy to cause waste because pyrotoxin itself carries; Moreover heating using microwave is " body heating ", compared to traditional vacuum stove heating heat from sample outside gradually internally diffusion heating to the homogeneous heating of sample own, institutional framework and performance preferably sintered sample can be obtained.
Therefore develop a kind of microwave vacuum hot pressing furnace in conjunction with the advantage of microwave, vacuum, hot pressed sintering necessary, the material preparing excellent performance can be sintered.And prepared stove must overcome current hot pressing furnace sealing not, not high, the equipment leaky wave of vacuum, the problem such as insulation is not easy to operate, heat insulation effect is not good; Moreover prepared stove preferably can multi-use, not only can microwave vacuum hot pressed sintering, also can carry out microwave ventilation hot pressed sintering etc., thus saving resource and space.
Summary of the invention
For above-mentioned prior art Problems existing and deficiency, the utility model provides a kind of microwave vacuum ventilation hot pressing furnace.This stove is the advantage combining hot pressing, vacuum, microwave sintering, and overcome the problems such as current hot pressing furnace sealing is inadequate, vacuum is not high, equipment leaky wave, insulation is not easy to operate, heat insulation effect is not good, and energy multi-use, the utility model is achieved through the following technical solutions.
A kind of microwave vacuum ventilation hot pressing furnace, comprises gas cylinder 1, vacuum cavity 3, molybdenum push-down head platform 4, insulation sleeve 5, molybdenum seaming chuck 6, microwave generator 7, sealing flange 8, furnace body skeleton 9, pressure sensor 10, hydraulic system 11, stainless steel upperpush rod 12, furnace cover lifting whirligig 13, watch window 15, infrared radiation thermometer 16, Pressure gauge 17, exhaust outlet 18, bell 19, tight lid knob 20, sealing rubber ring 21, switch board 22, base 23, support 24, stainless steel down-pressed pole 25 and vacuum generating device 26, described vacuum cavity 3 is fixed on base 23 by support 24, vacuum cavity 3 sidepiece is coordinated with bell 19 by furnace cover lifting whirligig 13, and sealed by rubber seal 21 and four tight lid knobs 20, vacuum cavity 3 inside is through hydraulic system 11, hydraulic system 11 is supported on base 23 by four furnace body skeletons 9, in hydraulic system 11, stainless steel upperpush rod 12 connects molybdenum seaming chuck 6, and stainless steel upperpush rod 12 is provided with pressure sensor 10, molybdenum push-down head platform 4 is supported by stainless steel down-pressed pole 25, insulation sleeve 5 is laid outside molybdenum push-down head platform 4, stainless steel upperpush rod 12 is connected by sealing flange 8 with vacuum cavity 3 shell with stainless steel down-pressed pole 25, vacuum cavity 3 top is provided with microwave generator 7, microwave generator 7 is connected with switch board 22, vacuum cavity 3 side connects vacuum generating device 26 and gas cylinder 1, bell 19 is provided with watch window 15, infrared radiation thermometer 16 and Pressure gauge 17, Pressure gauge 17 is communicated with the exhaust outlet 18 being provided with valve 2.
Described molybdenum push-down head platform 4 diameter is greater than molybdenum seaming chuck 6 diameter, and molybdenum push-down head platform 4 end face outer ring is provided with circular insulation sleeve 5, and insulation sleeve 5 forms diameter of a circle and molybdenum seaming chuck 6 equal diameters.
Described molybdenum push-down head platform 4 and molybdenum seaming chuck 6 surface are coated with thermal insulation ceramics coating 14, operationally also answer layer overlay heat-preservation cotton.
Described vacuum cavity 3 side is connected with vacuum generating device 26 and gas cylinder 1 successively by three-way pipe, and vacuum cavity 3 is provided with valve 2 with the pipeline of gas cylinder 1.
Described insulation sleeve 5 is provided with aperture near infrared radiation thermometer 16 side, so that infrared radiation thermometer 16 can accurate thermometric.
The using method of this device is: open bell 19, being loaded by wanted sintered powder material after in mould is positioned in insulation sleeve 5, carry out insulation operation simultaneously, then power supply is started by switch board 22, controlled pressure sensor 10 is pressurizeed by molybdenum seaming chuck 6 to the mould that material is housed according to setup pressure value, close bell 19 afterwards, and by sealing rubber ring 21 and tight lid knob 20, bell mouth is sealed, then start vacuum generating device 26 to vacuumize, after vacuum reaches certain value, protective gas is passed into by gas cylinder 1, secondary vacuum pumping is carried out again after reaching normal pressure, until vacuum reaches setting value, oxidizing gas or pollution gas are fully discharged, finally start microwave generator 7 and carry out heating using microwave, reach sintering temperature required and after requiring held for some time, microwave generator 7 is stopped to work, and make molybdenum seaming chuck 6 increase by controlled pressure sensor 10, open bell 19 to take out sintered material and namely complete sintering process.
The beneficial effects of the utility model are: this stove combines the advantage of microwave, vacuum and hot pressing three sintering, homogeneous heating, and heating is very fast, and the prepared properties of sample obtained is more excellent; This type of furnace sealing is better, can reach higher vacuum, not leaky wave; Insulation sleeve is placed in outside push-down head platform is close to heating sample, and insulation material structure comparison is compact, not only can save insulation material, and heat insulation effect is also better, economize energy, and insulation material is convenient for changing and adjusts; This stove is provided with aerating system, during microwave vacuum hot pressed sintering, advance vacuumizes, and then pass into protective gas, carry out secondary vacuum pumping again, can oxidizing gas or pollution gas be dropped to minimum on sample performance impact like this, and can at microwave hot-press sintering, microwave sintering etc. under protective atmosphere, realize multi-use, thus saving resource and space; The utility model structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is the utility model microwave vacuum ventilation hot pressing furnace structural representation.
In figure: 1-gas cylinder, 2-valve, 3-vacuum cavity, 4-molybdenum push-down head platform, 5-is incubated sleeve, 6-molybdenum seaming chuck, 7-microwave generator, 8-sealing flange, 9-furnace body skeleton, 10-pressure sensor, 11-hydraulic system, 12-stainless steel upperpush rod, 13-furnace cover lifting whirligig, 14-thermal insulation ceramics coating, 15-watch window, 16-infrared radiation thermometer, 17-Pressure gauge, 18-exhaust outlet, 19-bell, the tight lid knob of 20-, 21-sealing rubber ring, 22-switch board, 23-base, 24-support, 25-stainless steel down-pressed pole, 26-vacuum generating device.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, this microwave vacuum ventilation hot pressing furnace, comprises gas cylinder 1, vacuum cavity 3, molybdenum push-down head platform 4, insulation sleeve 5, molybdenum seaming chuck 6, microwave generator 7, sealing flange 8, furnace body skeleton 9, pressure sensor 10, hydraulic system 11, stainless steel upperpush rod 12, furnace cover lifting whirligig 13, watch window 15, infrared radiation thermometer 16, Pressure gauge 17, exhaust outlet 18, bell 19, tight lid knob 20, sealing rubber ring 21, switch board 22, base 23, support 24, stainless steel down-pressed pole 25 and vacuum generating device 26, described vacuum cavity 3 is fixed on base 23 by support 24, vacuum cavity 3 sidepiece is coordinated with bell 19 by furnace cover lifting whirligig 13, and sealed by rubber seal 21 and four tight lid knobs 20, vacuum cavity 3 inside is through hydraulic system 11, hydraulic system 11 is supported on base 23 by four furnace body skeletons 9, in hydraulic system 11, stainless steel upperpush rod 12 connects molybdenum seaming chuck 6, and stainless steel upperpush rod 12 is provided with pressure sensor 10, molybdenum push-down head platform 4 is supported by stainless steel down-pressed pole 25, insulation sleeve 5 is laid outside molybdenum push-down head platform 4, stainless steel upperpush rod 12 is connected by sealing flange 8 with vacuum cavity 3 shell with stainless steel down-pressed pole 25, vacuum cavity 3 top is provided with microwave generator 7, microwave generator 7 is connected with switch board 22, vacuum cavity 3 side connects vacuum generating device 26 and gas cylinder 1, bell 19 is provided with watch window 15, infrared radiation thermometer 16 and Pressure gauge 17, Pressure gauge 17 is communicated with the exhaust outlet 18 being provided with valve 2.
Wherein molybdenum push-down head platform 4 diameter is greater than molybdenum seaming chuck 6 diameter, and molybdenum push-down head platform 4 end face outer ring is provided with circular insulation sleeve 5, and insulation sleeve 5 forms diameter of a circle and molybdenum seaming chuck 6 equal diameters; Molybdenum push-down head platform 4 and molybdenum seaming chuck 6 surface are coated with thermal insulation ceramics coating 14, operationally also answer layer overlay heat-preservation cotton; Vacuum cavity 3 side is connected with vacuum generating device 26 and gas cylinder 1 successively by three-way pipe, and vacuum cavity 3 is provided with valve 2 with the pipeline of gas cylinder 1; Insulation sleeve 5 is provided with aperture near infrared radiation thermometer 16 side, so that infrared radiation thermometer 16 can accurate thermometric.
Below by reference to the accompanying drawings detailed description of the invention of the present utility model is explained in detail, but the utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (5)
1. a microwave vacuum ventilation hot pressing furnace, is characterized in that: comprise gas cylinder (1), vacuum cavity (3), molybdenum push-down head platform (4), insulation sleeve (5), molybdenum seaming chuck (6), microwave generator (7), sealing flange (8), furnace body skeleton (9), pressure sensor (10), hydraulic system (11), stainless steel upperpush rod (12), furnace cover lifting whirligig (13), watch window (15), infrared radiation thermometer (16), Pressure gauge (17), exhaust outlet (18), bell (19), tight lid knob (20), sealing rubber ring (21), switch board (22), base (23), support (24), stainless steel down-pressed pole (25) and vacuum generating device (26), described vacuum cavity (3) is fixed on base (23) by support (24), vacuum cavity (3) sidepiece is coordinated with bell (19) by furnace cover lifting whirligig (13), and by rubber seal (21) and four tight lid knob (20) sealings, vacuum cavity (3) inside is through hydraulic system (11), hydraulic system (11) is supported on base (23) by four furnace body skeletons (9), in hydraulic system (11), stainless steel upperpush rod (12) connects molybdenum seaming chuck (6), and stainless steel upperpush rod (12) is provided with pressure sensor (10), molybdenum push-down head platform (4) is supported by stainless steel down-pressed pole (25), insulation sleeve (5) is laid in molybdenum push-down head platform (4) outside, stainless steel upperpush rod (12) is connected by sealing flange (8) with vacuum cavity (3) shell with stainless steel down-pressed pole (25), vacuum cavity (3) top is provided with microwave generator (7), microwave generator (7) is connected with switch board (22), vacuum cavity (3) side connects vacuum generating device (26) and gas cylinder (1), bell (19) is provided with watch window (15), infrared radiation thermometer (16) and Pressure gauge (17), Pressure gauge (17) is communicated with the exhaust outlet (18) being provided with valve (2).
2. microwave vacuum ventilation hot pressing furnace according to claim 1, it is characterized in that: described molybdenum push-down head platform (4) diameter is greater than molybdenum seaming chuck (6) diameter, molybdenum push-down head platform (4) end face outer ring is provided with circular insulation sleeve (5), and insulation sleeve (5) forms diameter of a circle and molybdenum seaming chuck (6) equal diameters.
3. microwave vacuum ventilation hot pressing furnace according to claim 1 and 2, it is characterized in that: described molybdenum push-down head platform (4) and molybdenum seaming chuck (6) surface are coated with thermal insulation ceramics coating (14), operationally also answer layer overlay heat-preservation cotton.
4. microwave vacuum ventilation hot pressing furnace according to claim 1, it is characterized in that: described vacuum cavity (3) side is connected with vacuum generating device (26) and gas cylinder (1) successively by three-way pipe, vacuum cavity (3) is provided with valve (2) with the pipeline of gas cylinder (1).
5. microwave vacuum ventilation hot pressing furnace according to claim 1, is characterized in that: described insulation sleeve (5) is provided with aperture near infrared radiation thermometer (16) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222301.9U CN204648943U (en) | 2015-04-14 | 2015-04-14 | A kind of microwave vacuum ventilation hot pressing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222301.9U CN204648943U (en) | 2015-04-14 | 2015-04-14 | A kind of microwave vacuum ventilation hot pressing furnace |
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| Publication Number | Publication Date |
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| CN204648943U true CN204648943U (en) | 2015-09-16 |
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| CN201520222301.9U Active CN204648943U (en) | 2015-04-14 | 2015-04-14 | A kind of microwave vacuum ventilation hot pressing furnace |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595202A (en) * | 2019-09-16 | 2019-12-20 | 陈美香 | Vacuum sintering furnace |
| CN112361815A (en) * | 2020-10-28 | 2021-02-12 | 湖南隆泰环保能源科技有限公司 | Multifunctional microwave experiment workstation |
| WO2021208363A1 (en) * | 2020-04-17 | 2021-10-21 | 中国电子科技南湖研究院 | Device for preparing large-size single crystal |
| CN114234631A (en) * | 2021-12-30 | 2022-03-25 | 康硕(德阳)智能制造有限公司 | 3D prints integrative stove of microwave degreasing sintering for greenware |
| CN115682730A (en) * | 2022-12-30 | 2023-02-03 | 北京中科同志科技股份有限公司 | Chip vacuum pressure sintering furnace and control method thereof |
-
2015
- 2015-04-14 CN CN201520222301.9U patent/CN204648943U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595202A (en) * | 2019-09-16 | 2019-12-20 | 陈美香 | Vacuum sintering furnace |
| WO2021208363A1 (en) * | 2020-04-17 | 2021-10-21 | 中国电子科技南湖研究院 | Device for preparing large-size single crystal |
| CN112361815A (en) * | 2020-10-28 | 2021-02-12 | 湖南隆泰环保能源科技有限公司 | Multifunctional microwave experiment workstation |
| CN112361815B (en) * | 2020-10-28 | 2023-09-15 | 湖南隆泰环保能源科技有限公司 | Multifunctional microwave experiment workstation |
| CN114234631A (en) * | 2021-12-30 | 2022-03-25 | 康硕(德阳)智能制造有限公司 | 3D prints integrative stove of microwave degreasing sintering for greenware |
| CN115682730A (en) * | 2022-12-30 | 2023-02-03 | 北京中科同志科技股份有限公司 | Chip vacuum pressure sintering furnace and control method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |