CN106352694A - Intermediate frequency bidirectional vibration sintering furnace - Google Patents
Intermediate frequency bidirectional vibration sintering furnace Download PDFInfo
- Publication number
- CN106352694A CN106352694A CN201610952023.1A CN201610952023A CN106352694A CN 106352694 A CN106352694 A CN 106352694A CN 201610952023 A CN201610952023 A CN 201610952023A CN 106352694 A CN106352694 A CN 106352694A
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- China
- Prior art keywords
- electro
- pressure
- hydraulic servo
- sintering furnace
- exerting
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
Abstract
The invention relates to an intermediate frequency bidirectional vibration sintering furnace. The sintering furnace is characterized by comprising a hot pressing furnace body provided with a pressure system, wherein a heating element inside the hot pressing furnace body is an induction coil, and an infrared thermometer is arranged in the induction coil; an upper pressure head is arranged at the upper part of a pressure system, and a lower pressure head is arranged at the lower part of the pressure system; a bottom electro-hydraulic servo pressure applying device adjustable in frequency, amplitude and pressure is arranged at the bottom of the lower pressure head, a top electro-hydraulic servo pressure applying device is arranged at the top of the upper pressure head, and the bottom electro-hydraulic servo pressure applying device and the top electro-hydraulic servo pressure applying device are respectively connected to an electro-hydraulic servo system. The sintering furnace provided by the invention can realize that particle re-arrangement is promoted during vibratory sintering, volume shrinkage is accelerated, the aim of quick densification is achieved, density and mechanical properties of a sintered product are effectively improved, and more excellent high performance ceramic and a powder metallurgy material are obtained; meanwhile, sintering time can be obviously shortened, energy consumption is reduced, and working efficiency is greatly improved while environmental pollution is reduced.
Description
Technical field
The present invention relates to for the sintering furnace technical field of hot pressing sintering method preparation pottery and metal material, specially a kind of
Intermediate frequency two-way oscillation sintering furnace.
Background technology
Because its sintering temperature is low, speed fast, consistency is high, is to prepare indispensable one kind sides such as metal and pottery for hot pressing
Method.And what hot pressed sintering was typically carried out in hot pressing furnace.Hot pressing furnace can be in vacuum or protective atmosphere, to ceramic, golden
Belong to and some refractory metal intermediate compound powder are sintered, thus obtaining the material with certain consistency and mechanical strength
Material.The ultimate principle of hot pressed sintering is under certain high temperature, applies certain pressure to sample, makes the particle in base substrate granule
Under the dual function of high temperature and mechanical force, realize the contact between different powders and diffusion in green compact, pore is excluded, final realization
The densification of material.And although the hot pressed sintering pressuring method of the two-way mechanical pressurization adopting at present is reliable and stable, flexibly
Property is inadequate.
Content of the invention
For the problems referred to above, it is an object of the invention to provide a kind of pass through to provide Frequency Adjustable alternating pressure, and then improve
The intermediate frequency two-way oscillation sintering furnace of the performance of high-performance ceramic and sintered metal product.Technical scheme is as follows:
A kind of intermediate frequency two-way oscillation sintering furnace, including the hot pressing body of heater with pressure system, the heating of described hot pressing furnace interior
Body is induction coil, is provided with infrared radiation thermometer in induction coil；The top of pressure system is provided with seaming chuck, and bottom is provided with and pushes
Head；Push-down head bottom is provided with the bottom electro-hydraulic servo device for exerting of frequency, amplitude and pressure adjustable, bottom electro-hydraulic servo pressure dress
Put and be connected to electrohydraulic servo system.
Further, described seaming chuck top is provided with the top electro-hydraulic servo device for exerting of frequency, amplitude and pressure adjustable,
Top electro-hydraulic servo device for exerting is connected to electrohydraulic servo system.
Further, the frequency of vibration of described bottom electro-hydraulic servo device for exerting and top electro-hydraulic servo device for exerting is
0-50hz is adjustable.
Further, described bottom electro-hydraulic servo device for exerting and top electro-hydraulic servo device for exerting range of pressure fluctuations
Adjustable for 0- pre-loaded pressure * 15%mpa.
Further, described seaming chuck and push-down head adopt high temperature alloy, refractory metal, boron nitride, carborundum, oxidation
Zirconium or aluminium oxide ceramics are made.
The invention has the beneficial effects as follows:
1) present invention realizes vibratory sintering on the basis of existing equipment, substantially reduces in the case of obtaining same sintered article
Production cost；
2) present invention increased adjustable frequency on the basis of original high temperature sintering, degree of amplitude modulation/pressure vibration sinters two big spies
Point, promotes particle re-arrangement in vibratory sintering, accelerate volume contraction, reach the purpose of fast densification, effectively improve sintered article
Consistency and mechanical property, obtain more excellent high-performance ceramic and powdered metallurgical material；
3) present invention can sinter the high-performance ceramic under different frequency of vibration and sintered metal product, and research obtains high-performance pottery
Porcelain and the frequency range of sintered metal product optimum performance；
4) present invention can carry out the preparation of sintered metal product under different Oscillation Amplitude/pressure, and research obtains high-performance ceramic
Amplitude range with sintered metal product optimum performance；
5) present invention adopts induction coil as heater, can carry out rapid temperature rise and drop, compare other mode of heatings and substantially contract
Short sintering time, reducing energy consumption, decrease environmental pollution while greatly improving work efficiency.
Brief description
Fig. 1 is the structural representation of intermediate frequency two-way oscillation sintering furnace of the present invention.
1- intermediate frequency power supply；2- induction coil；3- electrohydraulic servo system；4- seaming chuck；5- push-down head；6- infrared radiation thermometer；
7- bottom electro-hydraulic servo device for exerting；8- bottom electro-hydraulic servo device for exerting.
Specific embodiment
With specific embodiment, the present invention is described in further details below in conjunction with the accompanying drawings.As shown in figure 1, a kind of intermediate frequency is double
To vibratory sintering stove, including the hot pressing body of heater with pressure system, intermediate frequency power supply 1, control system, electrohydraulic servo system 3；Described
The heater of hot pressing furnace interior is induction coil 2, is provided with infrared radiation thermometer 6 in induction coil 2；The top of pressure system sets
There is seaming chuck 4, bottom is provided with push-down head 5；The bottom electro-hydraulic servo that push-down head 5 bottom is provided with frequency, amplitude and pressure adjustable is applied
Pressure device 7, bottom electro-hydraulic servo device for exerting 7 is connected to electrohydraulic servo system 3；Electro-hydraulic servo actuator system adopts two-way adding
Pressure mode, therefore seaming chuck 4 top is provided with the top electro-hydraulic servo device for exerting 8 of frequency, amplitude and pressure adjustable, top is electro-hydraulic to be watched
Take device for exerting 8 and be connected to electrohydraulic servo system 3, vibrating effect can be made to double, more effectively promote particle re-arrangement, accelerate volume
Shrink, reach the purpose of fast densification.
Intermediate frequency power supply 1 adjusts induction coil 2 and heats, and by electro-hydraulic servo device for exerting to on-load pressure, frequency of vibration
It is controlled with amplitude/pressure, by parameter setting, a whole set of experimental provision can be controlled, experimental provision is by infrared survey
Warm instrument 6 and pressure transducer can control and show the pressure suffered by the temperature of heating chamber and sample in body of heater.
The frequency of vibration of the bottom electro-hydraulic servo device for exerting 7 of the present embodiment and top electro-hydraulic servo device for exerting 8 is 0-
50hz, provides the vibration of adjustable frequency while sintering.
The electro-hydraulic servo device for exerting 7 of the present embodiment, on the basis of pre-loaded pressure, can also be realized vibrating simultaneously
Pressurization, range of pressure fluctuations is adjustable in 0- on-load pressure * 15% mpa.
The seaming chuck 4 of the present embodiment and push-down head 5 adopt high temperature alloy, refractory metal, boron nitride, carborundum, zirconium oxide
Or aluminium oxide ceramics make it is ensured that pressure head institute bearing capacity is not less than 60mpa.
Body of heater is vertical installation.Intermediate frequency power supply 1 is the variable-frequency power sources generator having at least two-way resonance circuit.
The operation principle of the present invention is to add that one leads in top and bottom on the basis of original common hot-pressed sintering furnace
Cross adjustable frequency and the amplitude/pressure apparatus of electro-hydraulic servo principle design, real by this adjustable frequency and amplitude/pressure apparatus
Existing high-performance ceramic and the vibratory sintering of sintered metal product, thus improve consistency and the performance of sintered article.
Claims (5)
1. a kind of intermediate frequency two-way oscillation sintering furnace is it is characterised in that include the hot pressing body of heater with pressure system, described hot pressing furnace
The heater in internal portion is induction coil (2), is provided with infrared radiation thermometer (6) in induction coil (2)；The top of pressure system sets
There is seaming chuck (4), bottom is provided with push-down head (5)；The bottom that push-down head (5) bottom is provided with frequency, amplitude and pressure adjustable is electro-hydraulic
Servo device for exerting (7), bottom electro-hydraulic servo device for exerting (7) is connected to electrohydraulic servo system (3).
2. intermediate frequency two-way oscillation sintering furnace according to claim 1 is it is characterised in that described seaming chuck (4) top is provided with
Top electro-hydraulic servo device for exerting (8) of frequency, amplitude and pressure adjustable, top electro-hydraulic servo device for exerting (8) is connected to electricity
Fluid servo system (3).
3. intermediate frequency two-way oscillation sintering furnace according to claim 2 is it is characterised in that electro-hydraulic servo pressure in described bottom fills
Putting (7) and the frequency of vibration at top electro-hydraulic servo device for exerting (8) is that 0-50hz is adjustable.
4. intermediate frequency two-way oscillation sintering furnace according to claim 2 is it is characterised in that electro-hydraulic servo pressure in described bottom fills
Putting (7) and top electro-hydraulic servo device for exerting (8) range of pressure fluctuations is that 0- pre-loaded pressure * 15%mpa is adjustable.
5. intermediate frequency two-way oscillation sintering furnace according to claim 1 is it is characterised in that described seaming chuck (4) and push-down head
(5) made using high temperature alloy, refractory metal, boron nitride, carborundum, zirconium oxide or aluminium oxide ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952023.1A CN106352694A (en) | 2016-10-26 | 2016-10-26 | Intermediate frequency bidirectional vibration sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952023.1A CN106352694A (en) | 2016-10-26 | 2016-10-26 | Intermediate frequency bidirectional vibration sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106352694A true CN106352694A (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610952023.1A Pending CN106352694A (en) | 2016-10-26 | 2016-10-26 | Intermediate frequency bidirectional vibration sintering furnace |
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| Country | Link |
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| CN (1) | CN106352694A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788159A (en) * | 2018-07-17 | 2018-11-13 | 太原理工大学 | A kind of ultrasonic wave auxiliary hot-pressed sintering furnace |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072638A (en) * | 2010-12-31 | 2011-05-25 | 邓湘凌 | Bidirectional hot-pressing high-temperature oscillation sintering furnace and working method thereof |
| CN102102942A (en) * | 2010-12-28 | 2011-06-22 | 青岛科技大学 | Pressure-adjustable vibratory type hot pressed sintering furnace |
| CN103084574A (en) * | 2013-02-21 | 2013-05-08 | 湖北长江精工材料技术有限公司 | Preparation method of diamond bits and sintering device thereof |
| CN105066682A (en) * | 2015-08-05 | 2015-11-18 | 清华大学 | Rapid-densification pressure-coupling dynamic sintering furnace and sintering method |
| CN105865205A (en) * | 2016-05-19 | 2016-08-17 | 西南交通大学 | Two-way hot pressing high temperature oscillation sintering furnace |
| CN106017098A (en) * | 2016-05-19 | 2016-10-12 | 西南交通大学 | One-way hot-press high-temperature oscillation sintering furnace |
| CN206176978U (en) * | 2016-10-26 | 2017-05-17 | 西南交通大学 | Intermediate frequency bidirectional vibration fritting furnace |
-
2016
- 2016-10-26 CN CN201610952023.1A patent/CN106352694A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102942A (en) * | 2010-12-28 | 2011-06-22 | 青岛科技大学 | Pressure-adjustable vibratory type hot pressed sintering furnace |
| CN102072638A (en) * | 2010-12-31 | 2011-05-25 | 邓湘凌 | Bidirectional hot-pressing high-temperature oscillation sintering furnace and working method thereof |
| CN103084574A (en) * | 2013-02-21 | 2013-05-08 | 湖北长江精工材料技术有限公司 | Preparation method of diamond bits and sintering device thereof |
| CN105066682A (en) * | 2015-08-05 | 2015-11-18 | 清华大学 | Rapid-densification pressure-coupling dynamic sintering furnace and sintering method |
| CN105865205A (en) * | 2016-05-19 | 2016-08-17 | 西南交通大学 | Two-way hot pressing high temperature oscillation sintering furnace |
| CN106017098A (en) * | 2016-05-19 | 2016-10-12 | 西南交通大学 | One-way hot-press high-temperature oscillation sintering furnace |
| CN206176978U (en) * | 2016-10-26 | 2017-05-17 | 西南交通大学 | Intermediate frequency bidirectional vibration fritting furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788159A (en) * | 2018-07-17 | 2018-11-13 | 太原理工大学 | A kind of ultrasonic wave auxiliary hot-pressed sintering furnace |
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Application publication date: 20170125 |