A kind of combined type microwave sintering device being used to prepare oxide ceramics target
Technical field
The utility model belongs to oxide ceramic material Preparation equipment field, and in particular to one kind is used to prepare oxide pottery
The combined type microwave sintering device of porcelain target.
Background technique
Sintering is an important link of ceramic field material preparation process, to powder or the base made of powder
Body is heated by certain program and temperature, so that gap is reduced between powder, powder is assembled, internal microstructure hair
Raw apparent variation, leads to densifying materials, improves the performance of material, or even can obtain some new physicochemical properties.
The quality of sintering process can directly affect the final performance of ceramics, therefore the selection of sintering processing is for the preparation process of ceramics
Seem of crucial importance.
Sintering furnace common in sintering process is resistance-type sintering furnace at present, and heating method is mainly that electric current flows through high electricity
The heating component of resistance rate generates a large amount of heat in furnace interior, these heats are transmitted by way of heat radiation and convection current
The outside of material in furnace, heat are internally shifted by material outer by way of heat transfer again, are finally made in material
External heat distribution reaches dynamic equilibrium, to achieve the purpose that heating material.Resistance-type sintering furnace uses electric energy production heat
Amount can obtain combustion gas or the coal-fired high temperature being not achieved, successfully instead of heating method more original in early days.However,
The acquisition of sintering process high temperature needs to consume a large amount of electric energy, the mistake that the heat generated is shifted from heating component to material
Cheng Zhong will cause and be largely lost, and only some heat is directly used in material heating, cause great waste to the energy, and
Conduction pattern due to heat in material bodies from outer to inner easily generates temperature gradient in material internal, causes material each section
Heating is uneven, generates thermal stress, causes the cracking of material, at the same pattern to material internal and structure can also cause it is very big
It influences, to influence the performance of product.
Summary of the invention
In order at least solve one of technical problem of the existing technology mentioned above, the utility model discloses a kind of use
In the combined type microwave sintering device for preparing oxide ceramics target, which includes that electric-heating control system 1, microwave add
Thermal control system 2 and sintering furnace 3, electric-heating control system 1 therein is for controlling electric heating process, microwave heating control system
System 2 for controlling microwave heating process, sintering furnace 3 for placing, sintered ceramic oxide target.
As alternative embodiment disclosed by the utility model, 1 He of electric-heating control system of combined type microwave sintering device
Microwave heating control system 2 can be set to work at the same time, and may be set to be and works at times.
As alternative embodiment disclosed by the utility model, the electric-heating control system 1 of combined type microwave sintering device can
To include:
Heating unit 11 is arranged in sintering furnace 3, for utilizing electric energy heating sintering furnace 3;
Temperature sensing unit 12, for the temperature in induction sintering furnace 3;
Temperature recording unit 13 is connect with temperature sensing unit 12, for detecting the temperature in record sintering furnace;
Procedure control unit 14 is connected with temperature recording unit 13, for control heating temperature, heat temperature raising speed,
Temperature hold-time, cooling rate;
Computer heating control switch 15 is connected with procedure control unit 14, for start heating unit 11 heating process and
Terminate heating process;
Vacuum control unit 16, including vacuum pump 161, vacuum control knob 162 and vacuum inspective meter 163, wherein
Vacuum pump 161 is connected with sintering furnace 3, for providing vacuum for sintering furnace 3;Vacuum inspective meter 163 is connected with sintering furnace 3
It connects, for detecting the vacuum degree in sintering furnace 3;Vacuum control knob 162 is connected with vacuum pump 161 and vacuum inspective meter 163
It connects, for starting or stoping vacuum pump 161.
As the utility model alternative embodiment, the microwave heating control system 2 of combined type microwave sintering device can be set
It sets and includes:
Microwave emitter 21 is set to 3 top of sintering furnace;
Microwave control unit 22 is connected with microwave emitter 21, for controlling microwave emitter 21.
As the utility model alternative embodiment, the microwave emitter 21 that combined type microwave sintering device includes can be set
It is set to multiple.
As the utility model alternative embodiment, combined type microwave sintering fills 21 phase of multiple microwave emitters centered
Together.
As the utility model alternative embodiment, the sintering furnace 3 that combined type microwave sintering device includes can be set to more
Layer structure.
As the utility model alternative embodiment, the multilayered structure of sintering equipment may include in combined type microwave agglomerating furnace
Flame retardant coating 31, insulating layer 32, protective layer 33 and the external stiffening formation 34 set gradually from inside to outside.
As the utility model alternative embodiment, multilayered structure is formed in combined type microwave sintering device sintering furnace 3
Interior thorax is positive cube shape or cuboid.
As the utility model alternative embodiment, combined type microwave sintering device can also include being arranged on sintering furnace
Cooling unit 4, for 3 cooling down of sintering furnace.
As the utility model alternative embodiment, the flame retardant coating 31 that combined type microwave sintering device includes, which can be set, serves as reasons
The flame retardant coating that high purity aluminium oxide refractory brick is constituted, the heat preservation that insulating layer 32 can be set to be made of high purity aluminium oxide foamed brick
Layer, protective layer 33 can be set as the protective layer made of stainless steel plate, and external stiffening formation 34 can be set to be located at sintering
The support construction of 3 bottom of furnace.
Combined type microwave agglomerating furnace disclosed by the invention is integrated with traditional resistive heating and microwave heating two ways,
By the mutual booster action of the two heating method, reach reduction energy consumption, the effect being quickly and effectively sintered can control heating speed
Degree, can be realized the accurate control to temperature, enable microwave heating technique in sintering art large-scale promotion application, can be with
Obtain large scale, structural integrity, ceramic material of good performance.
Detailed description of the invention
Fig. 1 combined type microwave sintering device composed structure schematic diagram
Appended drawing reference
1 electric-heating control system, 11 heating unit, 12 temperature sensing unit
13 temperature recording unit, 14 procedure control unit, 15 computer heating control switch
16 vacuum control unit, 161 vacuum pump, 162 vacuum control knob
163 vacuum inspective meter, 2 microwave heating control system, 21 microwave emitter
22 microwave control unit, 3 sintering furnace, 31 flame retardant coating
32 insulating layer, 33 protective layer, 34 external stiffening formation
4 cooling units
Specific embodiment
Dedicated word " embodiment " herein, should not necessarily be construed as being better than as any embodiment illustrated by " exemplary " or
It is better than other embodiments.It should be understood that it is to describe special embodiment that term described in the invention, which is only, not use
In limitation present disclosure.
Unless otherwise stated, technical and scientific terms used herein has the invention technical field
The normally understood identical meanings of those of ordinary skill.
In order to better illustrate the content of the utility model, given in specific embodiment below numerous specific thin
Section.It will be appreciated by those skilled in the art that without certain details, the present invention equally be can be implemented.In embodiment, for
Certain methods well known to those skilled in the art, means, instrument, equipment, raw material composition, molecular structure etc. are not described in detail,
In order to highlight purport of the invention.
The utility model is interpreted in detail below in conjunction with attached drawing, is implemented convenient for relatively sharp description the utility model
The technical solution of example.Fig. 1 is the combined type microwave sintering device disclosed by the utility model for being used to prepare oxide ceramics target
Composed structure schematic diagram.
Combined type microwave sintering device disclosed in the embodiment includes electric-heating control system 1, microwave heating control system 2
With sintering furnace 3, wherein electric-heating control system 1 includes the heating unit 11 being arranged in sintering furnace 3, and heating unit 11 can be set
It is set to two or multiple, and the setting position of heating unit can be in the side of sintering furnace, can also be in bottom, such as it can
To be equipped with four groups of Si-Mo rods as electric heating component in burner hearth four sides inner wall, high-power electric current flows through Si-Mo rod, can produce
Raw amount of heat heats the material in burner hearth;Temperature sensing unit 12 usually can be set to one or multiple,
Setting position also can choose in bottom, top, side or other positions, such as may include two traditional high temperature thermoelectrics
One infrared temperature sensor of even summation, two conventional thermocouples are located at furnace roof and burner hearth side, for measuring in burner hearth
Temperature, infrared temperature sensor can be set in furnace roof, sample stage is directed toward, for measuring the temperature of sample itself;Temperature passes
The sense setting of unit 12 is connected with temperature recording unit 13 and procedure control unit 14, for detecting the temperature in record sintering furnace simultaneously
Control the cooling rate of electrical heating temperature, electric heating heating rate, the temperature hold-time in sintering furnace, sintering furnace;Program control
Unit 14 processed can also be arranged including information display component, for example, the temperature of detection can be shown.The computer heating control of setting switchs
15, it is connected with procedure control unit 14, for starting the heating process of heating unit 11 and terminating heating process.
Vacuum control unit 16 includes vacuum pump 161, vacuum control knob 162 and vacuum inspective meter 163, wherein true
Sky pump 161 is connected with sintering furnace 3, can be used for providing vacuum for sintering furnace 3;Vacuum inspective meter 163 is connected with sintering furnace 3
It connects, for detecting the vacuum degree in sintering furnace 3;Vacuum control knob 162 is connected with vacuum pump 161 and vacuum inspective meter 163
It connects, for starting or stoping vacuum pump 161.If necessary to be sintered in specific gas atmosphere, vacuum pump, gas supply can be filled
It sets and is connected with sintering furnace by threeway, only need for feeder to be connected with sintering furnace at this time, can be logical in sintering furnace
Enter the gas of needs.
The microwave heating control system 2 being arranged in the present embodiment includes microwave emitter 21 and microwave control unit 22.It is micro-
Wave launcher 21 can be set to one, may be set to be multiple, and multiple microwave emitters facilitate temperature when microwave heating
Be uniformly distributed, such as can the top of sintering furnace 3 be arranged 8 identical microwave emitters 21, the cavity of microwave emitter
It can be directly embedded into the microwave interface on furnace roof top, and with sealing material that sealing joint is tight.Pass through microwave control unit 22
It controls the power of microwave, start and stop, runing time etc..Microwave is by promoting material internal molecular vibration to generate heat, material
It is outwardly spread again after the whole fever of material, so that material be made to reach heating effect.This heating method can effectively solve electricity and add
Material internal temperature gradient and the problem of thermal stress in thermal process, while shorten heating time substantially, improve the benefit of thermal energy
With rate, the waste of the energy is reduced.
Microwave heating control system 2 and electric-heating control system 1 in the utility model embodiment can be set to simultaneously
Work, may be set to be and work at times, can also connect starting at times.It is, for example, possible to use electric-heating control systems 1
Sintering furnace is heated to certain temperature, such as 1000 degrees Celsius, then starts microwave heating control system 2, two heating systems are same
When work, until the sintering temperature that is needed, such as 1500 degrees Celsius, 1600 degrees Celsius or other temperature.
As in embodiment disclosed by the utility model, sintering furnace burner hearth is cuboid, and dischargeable capacity reaches 90 centimetres
× 70 70 centimetres of cm x.Sintering furnace 3 includes the flame retardant coating 31 being made of high purity aluminium oxide refractory brick, by high purity aluminium oxide foam
The insulating layer 32 that brick is constituted, protective layer 33 made of stainless steel plate, the support construction 34 positioned at 3 bottom of sintering furnace.
Cooling device 4 is circulating water cooling system, can be set outside sintering furnace, also can be set inside furnace wall, example
Such as, circulating water pipe can be set in furnace wall inner wrap, is passed through cooling water in water pipe, takes away what burner hearth distributed outward by water flow
Heat, water inlet are provided with water pressure gauge, and for detecting water feeding pressure, water outlet is equipped with temperature alarm, for preventing out water temperature
Height is spent, the hot water of outflow can continue cycling through use after cooling treatment, and any exception occurs in cooling water, and alarm can be automatic
Starting, while electric-heating control system is fed back to, stove stops heating.
Microwave heating control system provided by the utility model can control heating rate, can be realized to the accurate of temperature
Control, enables microwave heating technique in sintering art large-scale promotion application, available large scale, structural integrity, property
It can good ceramic material.
The foregoing is merely schematical specific embodiments disclosed by the utility model, are not departing from the use of the new type structure
Under the premise of thinking with principle, the equivalent changes and modifications that any those skilled in the art is made, or to the utility model skill
The technical solution that any combination of art feature obtains should belong to the claimed range of the utility model.