CN106643192A - Medium-frequency one-way vibration sintering furnace - Google Patents
Medium-frequency one-way vibration sintering furnace Download PDFInfo
- Publication number
- CN106643192A CN106643192A CN201610949722.0A CN201610949722A CN106643192A CN 106643192 A CN106643192 A CN 106643192A CN 201610949722 A CN201610949722 A CN 201610949722A CN 106643192 A CN106643192 A CN 106643192A
- Authority
- CN
- China
- Prior art keywords
- electro
- pressure
- hydraulic servo
- sintering furnace
- frequency
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0006—Monitoring the characteristics (composition, quantities, temperature, pressure) of at least one of the gases of the kiln atmosphere and using it as a controlling value
- F27D2019/0009—Monitoring the pressure in an enclosure or kiln zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0006—Monitoring the characteristics (composition, quantities, temperature, pressure) of at least one of the gases of the kiln atmosphere and using it as a controlling value
- F27D2019/0025—Monitoring the temperature of a part or of an element of the furnace structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
Abstract
The invention discloses a medium-frequency one-way vibration sintering furnace which comprises a hot pressing furnace body with a pressure system. A heating body of the hot pressing furnace body is an induction coil. An infrared thermometer is arranged in the induction coil, and temperature is controlled through a temperature control system; an upper pressing head is arranged at the upper portion of the pressure system, and a lower pressing head is arranged at the lower portion of the pressure system; the bottom of the lower pressing head is provided with an electro-hydraulic servo pressure application device with adjustable frequency, amplitude and pressure, and the electro-hydraulic servo pressure application device is connected to an electro-hydraulic servo system. Re-discharging of particles can be promoted in vibration sintering, volume shrinkage can be accelerated, the purpose of rapid densification is achieved, the density and mechanical property of sintered products are effectively improved, and more excellent high-performance ceramic and powder metallurgy materials can be obtained; meanwhile, the sintering time can be obviously shortened, the energy consumption is lowered, and environment pollution is reduced while the working efficiency is greatly improved.
Description
Technical field
The present invention relates to it is used for the sintering furnace technical field that hot pressing sintering method prepares ceramics and metal material, it is specially a kind of
Intermediate frequency single vibration sintering furnace.
Background technology
Material is the basis of human social development, and the progress of human society each time is all closely bound up with the development of material.
And the quality of material, it is also closely related with its sintering process in addition to depending on material itself.And the realization of sintering process,
It is unable to do without sintering furnace miscellaneous.Wherein, hot pressing furnace is exactly the conventional stove of a kind of sintering ceramics and metal-powder.Hot pressing is burnt
Freezing of a furnace can be in vacuum or protective atmosphere, and to ceramics, compound powder is sintered between metal and some refractory metals, from
And obtain the material with certain consistency and mechanical strength.The general principle of hot pressed sintering is at a high temperature of certain, to sample
Product apply certain pressure, make the particle in base substrate particle under the double action of high temperature and mechanical force, realize different in green compact
Contact and diffusion between powder, pore is excluded, and finally realizes the densification of material.And the hot pressing of the mechanical pressurization for adopting at present is burnt
Knot pressuring method is although reliable and stable, but flexibility is inadequate.
The content of the invention
For the problems referred to above, it is an object of the invention to provide it is a kind of by providing Frequency Adjustable alternating pressure, and then improve
The intermediate frequency single vibration sintering furnace of the performance of ceramics and sintered metal product.Technical scheme is as follows：
A kind of intermediate frequency single vibration sintering furnace, including the hot pressing body of heater with pressure system, the heater of the hot pressing body of heater is
Induction coil, is provided with infrared radiation thermometer in induction coil, and temperature is controlled by temperature control system；Pressure system it is upper
Portion is provided with seaming chuck, and bottom is provided with push-down head；Push-down head bottom is provided with the electro-hydraulic servo pressure dress of frequency, amplitude and pressure adjustable
Put, electro-hydraulic servo device for exerting is connected to electrohydraulic servo system.
Further, the vibration frequency of the electro-hydraulic servo device for exerting is that 0-50Hz is adjustable.
Further, the electro-hydraulic servo device for exerting range of pressure fluctuations is that 0- pre-loaded pressure * 15%MPa are adjustable.
Further, the 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 where same sintered article is obtained
Production cost；
2) present invention increased adjustable frequency, degree of amplitude modulation/big spy of pressure vibration sintering two on the basis of original high temperature sintering
Point, promotes particle re-arrangement in vibratory sintering, accelerate volume contraction, reaches the purpose of fast densification, effectively improves 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 and sintered metal product under different vibration frequencies, and research obtains high-performance pottery
The frequency range of porcelain and 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
With the amplitude range of sintered metal product optimum performance；
5) present invention can carry out rapid temperature rise and drop using induction coil as heater, compare other mode of heatings and substantially contract
Short sintering time, reducing energy consumption decreases environmental pollution while operating efficiency is greatly improved.
Description of the drawings
Fig. 1 is the structural representation of intermediate frequency single vibration sintering furnace of the present invention.
In figure：1- temperature control systems；2- induction coils；3- electrohydraulic servo systems；4- seaming chucks；5- push-down heads；The infrared surveys of 6-
Wen Yi；7- electro-hydraulic servo device for exerting.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further details with specific embodiment.As shown in figure 1, a kind of intermediate frequency list
To vibratory sintering stove, including hot pressing body of heater, intermediate frequency power supply, temperature control system 1, electrohydraulic servo system 3 with pressure system；It is described
The heater of hot pressing furnace interior is induction coil 2, and infrared radiation thermometer 6 is provided with induction coil 2, and by temperature control system 1
Temperature is controlled；The top of pressure system is provided with seaming chuck 4, and bottom is provided with push-down head 5；Electro-hydraulic servo actuator system is adopted
Unidirectional pressuring method, the bottom of push-down head 5 is used to be provided with the electro-hydraulic servo device for exerting 7 of frequency, amplitude and pressure adjustable, electro-hydraulic servo
Device for exerting 7 is connected to electrohydraulic servo system 3.
Intermediate frequency power supply adjusts induction coil 2 and heats, and by electro-hydraulic servo device for exerting 7 to on-load pressure, vibration frequency
It is controlled with amplitude/pressure, a whole set of experimental provision can be controlled by parameter setting, experimental provision is by infrared survey
Warm instrument 6 and pressure sensor can control and show pressure suffered in the temperature and sample of heating chamber in body of heater.
The vibration frequency of the electro-hydraulic servo device for exerting 7 of the present embodiment is 0-50Hz, and while sintering Frequency Adjustable is provided
The vibration of rate.
The electro-hydraulic servo device for exerting 7 of the present embodiment can also simultaneously realize vibration on the basis of pre-loaded pressure
Pressurization, range of pressure fluctuations is adjustable in 0- on-load pressures 15% MPa of *.
The seaming chuck 4 and push-down head 5 of the present embodiment adopts high temperature alloy, refractory metal, boron nitride, carborundum, zirconium oxide
Or aluminium oxide ceramics is made, it is ensured that pressure head institute bearing capacity is not less than 60MPa.
Body of heater is vertical installation.Intermediate frequency power supply is the variable-frequency power sources generator for having at least two-way resonance circuit.
The operation principle of the present invention is by electro-hydraulic on the basis of original common hot-pressed sintering furnace in bottom plus one
The Frequency Adjustable and amplitude/pressure apparatus of servo principle design, realizes that high-performance is made pottery by this Frequency Adjustable and amplitude/pressure apparatus
The vibration hot pressed sintering of porcelain and sintered metal product, so as to improve the consistency and performance of sintered article.
Claims (4)
1. a kind of intermediate frequency single vibration sintering furnace, it is characterised in that include the hot pressing body of heater with pressure system, the hot pressing furnace
The heater of body is induction coil（2）, induction coil（2）In be provided with infrared radiation thermometer（6）, and by temperature control system（1）It is right
Temperature is controlled；The top of pressure system is provided with seaming chuck（4）, bottom is provided with push-down head（5）；Push-down head（5）Bottom is provided with
The electro-hydraulic servo device for exerting of frequency, amplitude and pressure adjustable（7）, electro-hydraulic servo device for exerting（7）It is connected to electro-hydraulic servo system
System（3）.
2. intermediate frequency single vibration sintering furnace according to claim 1, it is characterised in that the electro-hydraulic servo device for exerting
（7）Vibration frequency be 0-50Hz it is adjustable.
3. intermediate frequency single vibration sintering furnace according to claim 1, it is characterised in that the electro-hydraulic servo device for exerting
（7）Range of pressure fluctuations is that 0- pre-loaded pressure * 15%MPa are adjustable.
4. intermediate frequency single vibration sintering furnace according to claim 1, it is characterised in that the 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 |
|---|---|---|---|
| CN201610949722.0A CN106643192A (en) | 2016-10-26 | 2016-10-26 | Medium-frequency one-way vibration sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610949722.0A CN106643192A (en) | 2016-10-26 | 2016-10-26 | Medium-frequency one-way vibration sintering furnace |
Publications (1)
| Publication Number | Publication Date |
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| CN106643192A true CN106643192A (en) | 2017-05-10 |
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ID=58821337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610949722.0A Pending CN106643192A (en) | 2016-10-26 | 2016-10-26 | Medium-frequency one-way vibration sintering furnace |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612265A (en) * | 2018-12-21 | 2019-04-12 | 景德镇陶瓷大学 | A kind of unidirectional double acting high-frequency vibration hot pressing vacuum sintering furnace |
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|---|---|---|---|---|
| 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 |
| CN105135873A (en) * | 2015-08-05 | 2015-12-09 | 清华大学 | Dynamic pressure electric pulse double-field control 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 |
-
2016
- 2016-10-26 CN CN201610949722.0A patent/CN106643192A/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 |
| CN105135873A (en) * | 2015-08-05 | 2015-12-09 | 清华大学 | Dynamic pressure electric pulse double-field control 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612265A (en) * | 2018-12-21 | 2019-04-12 | 景德镇陶瓷大学 | A kind of unidirectional double acting high-frequency vibration hot pressing vacuum sintering furnace |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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