CN210070585U - Sintering furnace infrared auxiliary heating device for flash firing forming of ceramic crystals - Google Patents
Sintering furnace infrared auxiliary heating device for flash firing forming of ceramic crystals Download PDFInfo
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- CN210070585U CN210070585U CN201920549822.3U CN201920549822U CN210070585U CN 210070585 U CN210070585 U CN 210070585U CN 201920549822 U CN201920549822 U CN 201920549822U CN 210070585 U CN210070585 U CN 210070585U
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Abstract
The utility model discloses a be used for ceramic crystal to dodge and burn fashioned fritting furnace infrared auxiliary heating device, including the fritting furnace, the fritting furnace is the cylinder, and inside is equipped with the sintering model, and both ends are equipped with pressure head and lower pressure head respectively about the sintering model, go up the pressure head and go up pressure head base and lower pressure head base respectively with lower pressure head, and the sintering model sets up in the sintering district region, and the sintering district sets up in infrared auxiliary heating device, goes up the pressure head and links into with lower pressure head and dodges in burning the circuit, still is equipped with power and current control valve in the circuit of dodging. The utility model has the advantages of adopt infrared heating's mode to treat sintered material and carry out internal heating, the heating distance is far away, and rate of heating is fast, and temperature control is accurate, and the inside temperature of raw materials is even, can the wide application in the sintering process of preparing the great high performance crystal material of size, obtains the crystalline phase structure better than traditional sintering, and the performance is more outstanding.
Description
Technical Field
The utility model relates to a sintering pressing equipment field especially relates to a sintering furnace infrared auxiliary heating device that is used for ceramic crystal to dodge to burn the shaping.
Background
Sintering is the core link of the preparation process of inorganic materials such as ceramics. The material forms unique crystal structure, particle size, morphology, dislocation, defect and other physical and chemical characteristics in the sintering process, so that the material has unique performance. The heating of the traditional sintering furnace depends on a heating body to transfer heat energy to a heated object in a convection, conduction or radiation mode to enable the heated object to reach a certain temperature, the heat is transferred from outside to inside, the sintering time is long, and fine grains are difficult to obtain.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a sintering furnace infrared auxiliary heating device for ceramic crystal dodges and burns fashioned.
The utility model provides an infrared auxiliary heating device of fritting furnace for ceramic crystal dodges burns fashioned, including the fritting furnace, the fritting furnace is the cylinder, inside is equipped with the sintering model, both ends are equipped with pressure head and pressure head down respectively about the sintering model, go up the pressure head and connect respectively with pressure head base down with pressure head, the sintering model sets up in sintering area region, the sintering area sets up in infrared auxiliary heating device, go up the pressure head and press head down even go into dodge in burning the circuit, it still is equipped with power and current control valve to dodge in the burning circuit.
Preferably, the infrared auxiliary heating device comprises an infrared emitter and a heat radiation plate, the four sides of the heat radiation plate are arranged on the outer side of the sintering model in a surrounding mode, and a radiation absorption coating is arranged on the outer portion of the sintering model.
Preferably, even there is pulse pressure device on fritting furnace upper portion, pulse pressure device includes impulse generator, the pulse converter, the servo valve, servo cylinder, pressure sensor, the sensing signal changer, impulse generator connects the pulse converter, servo cylinder opening part connects the servo valve, pressure sensor connects the sensing signal changer, the pulse converter, servo valve and sensing signal changer all receive the sintering controller to connect, servo cylinder connects last pressure bar and lower pressure bar, pressure sensor sets up in last pressure head base and lower pressure head base terminal, be equipped with displacement detection device on last pressure head and the lower pressure head.
Preferably, the inner wall of the sintering furnace is provided with a water circulation heat preservation structure which is a double-layer spiral water pipe.
Preferably, the power supply is a high-voltage direct-current flash power supply.
Preferably, an observation window is arranged at the horizontal position of the sintering area on the side wall of the sintering furnace, the observation window is made of quartz glass, and a CCD electric coupler camera is arranged outside the observation window.
Preferably, the sintering area is provided with a temperature measuring device which is an optical fiber type double-color infrared thermometer and directly measures the internal temperature of the sintering area.
Preferably, the sintering furnace is connected with a booster pump.
The utility model has the advantages that the sintering material is internally heated by adopting an infrared heating mode, the heating distance is long, the heating speed is high, the temperature control is accurate, the internal temperature of the raw material is uniform, the sintering process for preparing the high-performance crystal material with larger body type can be widely applied, the crystal phase structure better than the traditional sintering process is obtained, and the performance is more excellent; the servo oil cylinder is controlled by the servo valve to enable the upper and lower pressing rods to carry out opposite punching pressurization, the pressure is controlled in a closed loop mode, the pressure of the upper and lower pressing rods is automatically adjusted, the sintering temperature and the sintering time required by a material to be sintered can be reduced, particle rearrangement, particle migration and air hole discharge of the material to be sintered are promoted, the volume shrinkage of the material to be sintered is accelerated, the material to be sintered can be rapidly densified, the defects of air holes, micro cracks and the like are eliminated, the sintering density and performance of a product are greatly improved, the displacement distance of the upper and lower pressing heads in the sintering process can be limited by the displacement detection device, and the product.
Drawings
Fig. 1 is a schematic structural diagram of an infrared auxiliary heating device of a sintering furnace for flash firing forming of ceramic crystals according to the present invention;
fig. 2 is a schematic structural diagram of the sintering furnace infrared auxiliary heating device for ceramic crystal flash firing molding provided by the utility model.
Detailed Description
The present invention is further illustrated with reference to the following specific embodiments, with reference to fig. 1-2.
The utility model provides a be used for ceramic crystal to dodge fashioned fritting furnace infrared auxiliary heating device that burns, including fritting furnace 1, fritting furnace 1 is the cylinder, inside is equipped with sintering model 2, both ends are equipped with pressure head 3 and lower pressure head 4 respectively about sintering model 2, go up pressure head 3 and connect pressure head base 31 and lower pressure head base 41 respectively with lower pressure head 4, sintering model 2 sets up in 5 regions in the sintering area, sintering area 5 sets up in infrared auxiliary heating device 6, go up pressure head 3 and lower pressure head 4 and even go into in the circuit of burning of dodging, still be equipped with power 7 and current control valve 8 in the circuit of burning of dodging.
The infrared auxiliary heating device 6 comprises an infrared emitter 61 and a heat radiation plate 62, the heat radiation plate 62 is arranged outside the sintering model 2 in a surrounding mode at four sides, a radiation absorption coating 63 is arranged outside the sintering model 2, the heat radiation plate 62 can convert lost heat energy into far infrared heat energy to radiate the sintering area in an electromagnetic wave mode, energy waste is reduced, the radiation absorption coating 63 not only converts the absorbed radiation heat energy into far infrared heat energy for transmission, the far infrared heat energy is changed into a far infrared radiation heat source, but also temperature gradient is increased due to the improvement of the surface temperature of the far infrared heat energy, the heat energy conduction strength of heated materials is enhanced, the heat absorption capacity is greatly improved, and the heating efficiency is improved.
The upper part of the sintering furnace 1 is connected with a pulse pressurizing device 9, the pulse pressurizing device 9 comprises a pulse generator 10, a pulse converter 11, a servo valve 12, a servo oil cylinder 13, a pressure sensor 14 and a sensing signal transmitter 15, the pulse generator 10 is connected with the pulse converter 11, the opening of the servo oil cylinder 13 is connected with the servo valve 12, the pressure sensor 14 is connected with the sensing signal transmitter 15, the pulse converter 11, the servo valve 12 and the sensing signal transmitter 15 are all connected by a sintering controller 16, the servo oil cylinder 13 is connected with an upper pressurizing rod 17 and a lower pressurizing rod 25, and upper and lower pressure heads can vertically and alternately impact a raw material to be sintered in a sintering area, so that the stress of the raw material to be sintered is; the pressure sensor 14 is arranged at the tail ends of the upper pressure head base 31 and the lower pressure head base 41, and the upper pressure head 3 and the lower pressure head 4 are provided with displacement detection devices 18 which can detect the up-and-down displacement of the sintering area and prevent the raw materials to be sintered in the sintering area from being deformed too much.
The inner wall of the sintering furnace 1 is provided with a water circulation heat preservation structure 19, and the water circulation heat preservation structure 19 is a double-layer spiral water pipe.
The power 7 is a high-voltage direct-current flash power supply, so that materials in the die can be punctured instantly, and flash efficiency is improved.
An observation window 21 is arranged at the horizontal position of the sintering area 5 on the side wall of the sintering furnace 1, the observation window 21 is made of quartz glass, a CCD electric coupler camera 22 is arranged outside the observation window 21, and an image can be captured in a high-brightness environment by utilizing an industrial electric coupler camera, so that the detail change in the sintering process is displayed by a clearer image.
The sintering area 5 is provided with a temperature measuring device 23 which is an optical fiber type double-color infrared thermometer, the internal temperature of the sintering area 5 is directly measured, data is direct and accurate, and control of the system is facilitated.
The sintering furnace 1 is connected with a booster pump 24, and the pressure in the furnace can be increased to 10 MPa.
The utility model has the advantages that the sintering material is internally heated by adopting an infrared heating mode, the heating distance is long, the heating speed is high, the temperature control is accurate, the internal temperature of the raw material is uniform, the sintering process for preparing the high-performance crystal material with larger body type can be widely applied, the crystal phase structure better than the traditional sintering process is obtained, and the performance is more excellent; the servo oil cylinder is controlled by the servo valve to enable the upper and lower pressing rods to carry out opposite punching pressurization, the pressure is controlled in a closed loop mode, the pressure of the upper and lower pressing rods is automatically adjusted, the sintering temperature and the sintering time required by a material to be sintered can be reduced, particle rearrangement, particle migration and air hole discharge of the material to be sintered are promoted, the volume shrinkage of the material to be sintered is accelerated, the material to be sintered can be rapidly densified, the defects of air holes, micro cracks and the like are eliminated, the sintering density and performance of a product are greatly improved, the displacement distance of the upper and lower pressing heads in the sintering process can be limited by the displacement detection device, and the product.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a be used for fashioned fritting furnace infrared auxiliary heating device of ceramic crystal flashover, its characterized in that, including fritting furnace (1), fritting furnace (1) is the cylinder, and inside is equipped with sintering model (2), both ends are equipped with pressure head (3) and pressure head (4) down respectively about sintering model (2), go up pressure head (3) and pressure head (4) down and connect respectively and go up pressure head base (31) and lower pressure head base (41), sintering model (2) set up in fritting area (5) region, fritting area (5) set up in infrared auxiliary heating device (6), go up pressure head (3) and pressure head (4) down and even go into in the flashover circuit, still be equipped with power (7) and current control valve (8) in the flashover circuit.
2. Sintering furnace infrared auxiliary heating device for ceramic crystal flash forming according to claim 1, characterized in that the infrared auxiliary heating device (6) comprises an infrared emitter (61) and a heat radiation plate (62), the heat radiation plate (62) is arranged around the outside of the sintering mold (2), and the outside of the sintering mold (2) is provided with a radiation absorbing coating (63).
3. The infrared auxiliary heating device of the sintering furnace for ceramic crystal flash firing forming according to claim 1, characterized in that the pulse pressurizing device (9) is connected to the upper part of the sintering furnace (1), the pulse pressurizing device (9) comprises a pulse generator (10), a pulse converter (11), a servo valve (12), a servo oil cylinder (13), a pressure sensor (14) and a sensing signal transmitter (15), the pulse generator (10) is connected with the pulse converter (11), the servo valve (12) is connected to the opening of the servo oil cylinder (13), the pressure sensor (14) is connected with the sensing signal transmitter (15), the pulse converter (11), the servo valve (12) and the sensing signal transmitter (15) are all connected by a sintering controller (16), the servo oil cylinder (13) is connected with an upper pressurizing rod (17) and a lower pressurizing rod (25), the pressure sensor (14) is arranged at the tail ends of the upper pressure head base (31) and the lower pressure head base (41), and displacement detection devices (18) are arranged on the upper pressure head (3) and the lower pressure head (4).
4. The infrared auxiliary heating device for the sintering furnace for the flash firing forming of the ceramic crystals as claimed in claim 1, wherein a water circulation heat preservation structure (19) is arranged on the inner wall of the sintering furnace (1), and the water circulation heat preservation structure (19) is a double-layer spiral water pipe.
5. Sintering furnace infrared auxiliary heating device for ceramic crystal flash firing forming according to claim 1, characterized in that the power supply (7) is a high voltage direct current flash firing power supply.
6. Sintering furnace infrared auxiliary heating device for ceramic crystal flash firing forming according to claim 1, characterized in that the side wall of the sintering furnace (1) is provided with an observation window (21) at the horizontal position of the sintering area (5), the observation window (21) is quartz glass, and the CCD electric coupler camera (22) is arranged outside the observation window (21).
7. A sintering furnace infrared auxiliary heating device for ceramic crystal flash firing forming according to the claim 1, characterized in that the sintering area (5) is equipped with a temperature measuring device (23) which is a fiber-optic two-color infrared thermometer to directly measure the temperature inside the sintering area (5).
8. Sintering furnace infrared auxiliary heating device for ceramic crystal flash firing forming according to claim 1 characterized in that the sintering furnace (1) is connected with booster pump (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549822.3U CN210070585U (en) | 2019-04-22 | 2019-04-22 | Sintering furnace infrared auxiliary heating device for flash firing forming of ceramic crystals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549822.3U CN210070585U (en) | 2019-04-22 | 2019-04-22 | Sintering furnace infrared auxiliary heating device for flash firing forming of ceramic crystals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210070585U true CN210070585U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920549822.3U Active CN210070585U (en) | 2019-04-22 | 2019-04-22 | Sintering furnace infrared auxiliary heating device for flash firing forming of ceramic crystals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210070585U (en) |
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2019
- 2019-04-22 CN CN201920549822.3U patent/CN210070585U/en active Active
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