CN1517658A - Solid material sintering furnace - Google Patents
Solid material sintering furnace Download PDFInfo
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- CN1517658A CN1517658A CNA031180183A CN03118018A CN1517658A CN 1517658 A CN1517658 A CN 1517658A CN A031180183 A CNA031180183 A CN A031180183A CN 03118018 A CN03118018 A CN 03118018A CN 1517658 A CN1517658 A CN 1517658A
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Abstract
A fritting furnace of solid material is composed of microwave source, transition waveguide, main body, insulating layer in the main body, temp measurer on the main body, feeding system, discharging system, and continuous transfer sleeve tube in said insulating layer and connected to said feeding system.
Description
(1) technical field
The present invention relates to a kind of solid material sintering furnace, be applicable to the sintering preparation of solid materials such as powder metallurgy, ceramic.
(2) background technology
Sintering is most ceramic materials and powdered metallurgical material are become goods by powder a main processes.The essence of sintering is that powder embryo piece is heated in suitable environment or atmosphere, by a series of physics, chemical change, powder particle is merged, and the intensity and the density of embryo piece increase sharply, and the various physical properties and the mechanical property of goods improve.The sintering furnace that adopts both at home and abroad mainly is traditional resistance-type heat-agglomerating stove and intermittent type microwave sintering furnace at present.
Traditional resistance-type heat-agglomerating stove comprises body of heater shell, heat-insulation layer, calandria and burner hearth etc., when electric current passes through calandria, because the resistance that has of calandria itself produces heat, utilizes the radiation and the conduction of heater heat, be sintered solid material in the heating furnace.Between burner hearth and the body of heater shell very thick heat-insulation layer is arranged, do not scattered and disappeared to guarantee heat, and concentrate on burner hearth inside.From the Thermal Power Engineering angle, this heating is heated the heat of solid material, all derive from the heat transmission of heater, be heated the solid material surface temperature and be higher than core temperature, the temperature of whole burner hearth must reach design temperature, all solid materials that are sintered in the heating furnace fully, and, the heat transmission of high temperature section is mainly by radiation, if heated solid material is many, can produce tangible shadow effect, the part that is not directly radiated to, temperature is lower than by the part of heater direct irradiation, causes the inhomogeneous of temperature field.This traditional resistance-type mode of heating has energy loss more than 80% around in the environment, is the very large heating means of a kind of energy consumption.From the materialogy angle, the firing rate that is sintered solid material depends on the heat conductivility of material itself, if heat conductivility is bad, as most of ceramic material or loose powder body material, the time of intensification sintering just needs very long, if the heating and cooling excessive velocities is shunk the inhomogeneous internal stress that forms owing to being sintered solid material, thereby is caused the cracking of material.The soak meeting causes the grain growth of material internal for a long time, for requiring the tiny and uniform structural material of crystal grain, can reduce the material monolithic performance undoubtedly.Have the functional material of volatile component for some, the high temperature heating can cause the change of surface composition for a long time.And high temperature shortening heat time heating time can cause the material heating not exclusively, can't reach sintered density and performance.The resistance-type heat-agglomerating stove and accessory of continous way has bigger output, but effect is the same with the resistance-type heating furnace of batch (-type) sintering, and the temperature field can be more inhomogeneous in the burner hearth.
The intermittent type microwave sintering furnace generally comprises microwave source, transition waceguide, sintering body of heater, heat-insulation layer, temperature measurer, and heat-insulation layer places in the sintering body of heater, and temperature measurer is arranged on the sintering body of heater, and microwave source links to each other with the sintering body of heater by transition waceguide.During its work, it mainly is the coupling that utilizes microwave energy and material, dielectric loss and magnetic dielectric loss by material consume the mode that the in-fighting that produces is transformed into the direct heating material of heat itself, material is heated to high temperature carries out sintering, this heat-agglomerating mode does not need heater, and being sintered material itself is exactly heater, heat-insulation layer be arranged on be centered around in the sintering body of heater be sintered solid material around, rather than around the sintering body of heater, the thickness and the weight of heat-insulation layer reduce greatly.Because heat loss is little, the energy consumption of microwave sintering only is equivalent to 20% of traditional resistor formula sintering.And the penetration depth of microwave is big, and general ceramic material etc. is sintered solid material and can both be penetrated, thermograde is very little, can heat up apace and lower the temperature, whole sintering process is shortened significantly, obtains trickle grainiess and highdensity sintered products.Do not have shadow effect, being sintered solid material can be by " whole heating ".Sintering process can also reduce and is sintered the solid material surface composition and changes fast, obtains the product of stable performance.But, the intermittent type microwave agglomerating plant can only be according to predefined sintering process curve sintering, one-period sintering one stove is sintered solid material, and next group is sintered solid material and must waits last consignment of to be sintered solid material to finish behind the sintering sintering that next circulation is carried out in shove charge again.The output of batch (-type) agglomerating plant depends on the length of batch and sintering period.This sintering processing can be than being easier to controlled atmospher, but production efficiency is lower.Therefore, develop a kind of novel solid material sintering furnace for being badly in need of.
(3) summary of the invention
The object of the present invention is to provide a kind of solid material sintering furnace, have characteristics such as production efficiency height, output be big, energy-conservation.
Solution of the present invention is on the basis of existing technology, comprise microwave source, transition waceguide, the sintering body of heater, heat-insulation layer, temperature measurer, heat-insulation layer places in the sintering body of heater, temperature measurer is arranged on the sintering body of heater, microwave source links to each other with the sintering body of heater by transition waceguide, it is characterized in that also including feed system, discharge system, transmit sleeve pipe continuously, feed system is connected with the sintering body of heater by sealing device, discharge system is connected with the sintering body of heater by sealing device, transmitting sleeve pipe continuously is arranged in the interior heat-insulation layer of sintering body of heater, and an end of pipe stretches in the feed system, feed system is positioned on the sintering body of heater, discharge system is positioned under the sintering body of heater, feed system, the sintering body of heater, discharge system is presented, in, following vertical layout.Like this, owing to comprise feed system and discharge system, and sintered material is vertical continuous transmission, thereby the sintering process serialization of goods, the output that is sintered solid material is provided significantly, and production efficiency improves greatly, and is simultaneously energy-conservation, thereby reached purpose of the present invention, be applicable to the heating and the sintering of solid material in enormous quantities.The solid material of indication of the present invention comprises stock or the powder itself that various ceramic powders, metal dust or other inorganic non-metallic powder compaction form, these stocks need become the higher block materials of density by heat-agglomerating, perhaps burn till inorganic solid-phase compound by the thermal response that adds of powder itself.
Feature of the present invention also is to transmit continuously sleeve pipe and is provided with the auxiliary absorbed layer of one section microwave and is looped around outside the continuous transmission sleeve pipe.Like this, reduced being sintered solid material surface and temperature inside gradient, made the thermograde that is sintered the zone very little.Simultaneously, the microwave radiation is produced by microwave source, and send in the sintering body of heater by transition waceguide, microwave directly is radiated heat-insulation layer, the auxiliary absorbed layer of microwave and transmits sleeve pipe continuously, and penetrates these several layer materials and be radiated being sintered in the solid material of ceramic crucible and the inside.The microwave absorption coefficient that is sintered solid material is greater than heat-insulation layer, transmit the microwave absorption coefficient of sleeve pipe and ceramic crucible continuously.Microwave is assisted the microwave absorption coefficient of absorbed layer and is sintered the close of solid material.The sintering maximum temperature occurs in the centre of sintering body of heater, promptly transmits the centre of sleeve pipe in the sintering body of heater continuously.Can realize firing temperature is carried out sintering or heating from 800 ℃ to 1800 ℃ various solid materials.
Feature of the present invention is that also the sintering body of heater is an all-metal construction microwave multimode cavity, and its level cross-sectionn is shaped as circle or polygon or arc angle polygon.Like this, the making of sintering body of heater is easier, and the microwave absorption efficiency is higher, and cost is lower.
Feature of the present invention is that also microwave source and transition waceguide are furnished with at least one cover around the sintering body of heater.If the firing temperature requirement is high, speed is fast, many covers then can be set, better so that the odd number cover to be set, its microwave source general power is between 3KW-75KW, and microwave frequency is between 900MHz to 10GHz.
Feature of the present invention also is to be respectively arranged with one or more groups air inlet and gas outlet on discharge system and feed system.Like this, be particularly suitable for some and be sintered solid material needs atmosphere protection in sintering process occasion.
Feature of the present invention is that also temperature measurer is an infrared radiation thermometer, and heat-insulation layer and auxiliary absorbed layer are provided with the observation port for infrared measurement of temperature.Like this, can monitor the highest sintering temperature in the sintering body of heater easily, convenient adjustment and control to sintering temperature.
It is porcelain bushing that feature of the present invention also is to transmit continuously sleeve pipe.Like this, cost is relatively low, order thermal efficiency height.
Feature of the present invention is that also feed system comprises charging casing, two cover charging transfer systems, two fan charging aperture hermatic doors, the charging casing comprises two feed cavity, wherein a fan charging aperture hermatic door is arranged on the porch, outer end of the feed cavity that material enters at first, another fan charging aperture hermatic door is arranged between two feed cavity, and two cover charging transfer systems are separately positioned in the feed cavity.Like this, feed system can be sent in the sintering body of heater being sintered solid material easily, and two fan charging aperture hermatic doors can reduce the exchange of sintering body of heater internal atmosphere and external environment atmosphere simultaneously, and the shield microwaves radiation.
Feature of the present invention is that also discharge system comprises the discharging casing, two cover discharging transfer systems, two fan discharging opening hermatic doors, three tops, the discharging casing comprises two discharging chambeies, wherein a fan discharging opening hermatic door is arranged on the exit, outer end in the discharging chamber that material finally comes out, another fan discharging opening hermatic door is arranged between two discharging chambeies, two cover discharging transfer systems are separately positioned in the discharging chamber, wherein two tops are installed in a side in the discharging chamber of discharging casing, also orthogonal in a plane with the axis of continuous transmission sleeve pipe, another top is installed in the bottom in the discharging chamber of discharging casing, and is coaxial with continuous transmission sleeve pipe.Like this, after being sintered the solid material sintering and finishing, discharge system can be sent to outside the stove easily, and two fan discharging opening hermatic doors can reduce the exchange of sintering body of heater internal atmosphere and external environment atmosphere simultaneously, and the shield microwaves radiation.
Feature of the present invention is that also charging transfer system, charging transfer system, discharging transfer system, discharging transfer system are chain-type transfer system or rollaway type transmission system.Like this, owing to be chain-type transfer system or rollaway type transmission system, thereby simple in structure, the transmission efficiency height also can be the belt-type transfer system.
(4) description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.1 is microwave source; 2 are the charging transfer system; 3 are the charging transfer system; 4 for being sintered solid material; 5 is ceramic crucible; 6 is the charging aperture hermatic door; 7 is the charging aperture hermatic door; 8 are the charging casing; 9 is the gas outlet; 10 is sealing device; 11 is heat-insulation layer; 12 help absorbed layer for microwave shop; 13 is the sintering body of heater; 14 is the temperature measurer observation port; 15 is temperature measurer; 16 is sealing device; 17 are the top; 18 are the top; 19 is air inlet; 20 are the top; 21 are the discharging casing; 22 are the discharging transfer system; 23 are the discharging transfer system; 24 is the discharging opening hermatic door; 25 is the discharging opening hermatic door; 26 is porcelain bushing; 27 is transition waceguide; 28 is feed system; 29 is discharge system; 30 is feed cavity; 31 is feed cavity; 32 are the discharging chamber; 33 are the discharging chamber.
Fig. 2 is the A-A partial sectional view of Fig. 1.
(5) specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
The present invention as shown in drawings, comprise microwave source 1, transition waceguide 27, sintering body of heater 13, heat-insulation layer 11, temperature measurer 15, heat-insulation layer 11 places in the sintering body of heater 13, temperature measurer 15 is arranged on the sintering body of heater 13, microwave source 1 links to each other with sintering body of heater 13 by transition waceguide 27, it is characterized in that also including feed system 28, discharge system 29, transmit sleeve pipe 26 continuously, feed system 28 is connected with sintering body of heater 13 by sealing device 10, discharge system 29 is connected with sintering body of heater 13 by sealing device 16, transmitting continuously sleeve pipe 26 is arranged in the heat-insulation layer 11 in the sintering body of heater 13, and an end of pipe stretches in the feed system 28, feed system 28 is positioned on the sintering body of heater 13, discharge system 29 is positioned under the sintering body of heater 13, feed system 28, sintering body of heater 13, discharge system 29 is presented, in, following vertical layout.
Feature of the present invention also is to transmit continuously sleeve pipe 26 and is provided with the auxiliary absorbed layer 12 of one section microwave and is looped around outside the continuous transmission sleeve pipe 26.
Feature of the present invention is that also sintering body of heater 13 is all-metal construction microwave multimode cavity, and its level cross-sectionn is shaped as circle or polygon or arc angle polygon.As shown in Figure 2, the level cross-sectionn of sintering body of heater 13 is shaped as quadrangle.
Feature of the present invention is that also microwave source 1 and transition waceguide 27 are furnished with at least one cover around sintering body of heater 13.As depicted in figs. 1 and 2, microwave source 1 and transition ripple bar 27 are the situation that a cover is set around sintering body of heater 13.
Feature of the present invention also is to be respectively arranged with one or more groups air inlet 19 and gas outlet 9 on discharge system 29 and feed system 28.As shown in Figure 1, air inlet 19 and gas outlet 9 are for being provided with one group situation.
Feature of the present invention is that also temperature measurer 15 is infrared radiation thermometer, and heat-insulation layer 11 and auxiliary absorbed layer 12 are provided with the observation port 14 for infrared measurement of temperature.
Feature of the present invention also is to transmit continuously sleeve pipe 26 and is porcelain bushing.
Feature of the present invention is that also feed system 28 comprises charging casing 8, two cover charging transfer systems 2 and 3, two fan charging aperture hermatic doors 6 and 7, charging casing 8 comprises two feed cavity 30 and 31, wherein a fan charging aperture hermatic door 6 is arranged on the porch, outer end of the feed cavity 30 that material enters at first, another fan charging aperture hermatic door 7 is arranged between two feed cavity 30 and 31, and two cover charging transfer systems 3 and 2 are separately positioned in feed cavity 30 and 31.
Feature of the present invention is that also discharge system 29 comprises discharging casing 21, two cover discharging transfer systems 22 and 23, two fan discharging opening hermatic doors 24 and 25, three tops 17,18 and 20, discharging casing 21 comprises two discharging chambeies 32 and 33, wherein a fan discharging opening hermatic door 24 is arranged on the exit, outer end in the discharging chamber 33 that material finally comes out, another fan discharging opening hermatic door 25 is arranged between two discharging chambeies 32 and 33, two cover discharging transfer systems 23 and 22 are separately positioned in discharging chamber 33 and 32, two sides that top 17 and 18 is installed in the discharging chamber 32 of discharging casing 21 wherein, also orthogonal in a plane with the axis of continuous transmission sleeve pipe 26, the bottom that another top 20 is installed in the discharging chamber 32 of discharging casing 21, coaxial with continuous transmission sleeve pipe 26.
Feature of the present invention is that also charging transfer system 2, charging transfer system 3, discharging transfer system 22, discharging transfer system 23 are chain-type transfer system or rollaway type transmission system.The present invention as shown in drawings, microwave source 1 is connected with sintering body of heater 13 by transition waceguide 27, microwave is from a side direction sintering body of heater 13 feed-ins, transition waceguide 27 axis normal are in sintering body of heater 13 central axis.The inner wall shape of sintering body of heater 13 can be the limit more than or equal to 4 regular polygon column or cylindrical.The porcelain bushing 26 at the center of sintering body of heater 13 is vertically placed, and taps into hopper body 8 on the porcelain bushing 26, picks out hopper body 21 down.Porcelain bushing 26 is tightly connected with the upper shed and the under shed of sintering body of heater 13 respectively by sealing device 10 and 16, and sealing device 10 and 16 is illustrated as sealing ring, and porcelain bushing 26 is the refractory ceramics long tube of thin-walled.An infrared radiation thermometer 15 is equipped with at sintering body of heater 13 outer centers, and the axis of the axis of infrared radiation thermometer 15 and porcelain bushing 26 is also orthogonal in a plane.Core in the sintering body of heater 13 has the auxiliary absorbed layer 12 of one section microwave to be looped around outside the porcelain bushing 26, and the auxiliary absorbed layer 12 of microwave is round barrel shapes, and internal diameter is greater than the external diameter of porcelain bushing 26, and height is less than the length of porcelain bushing 26 in sintering body of heater 13.The part of porcelain bushing 26 in sintering body of heater 12 all is wrapped in one deck heat-insulation layer 11.An observation port 14 is left over against the part of infrared radiation thermometer 15 in auxiliary absorbed layer 12 centers of heat-insulation layer 11 and microwave, and infrared radiation thermometer 15 can directly be measured porcelain bushing 26 surface temperatures by observation port 14.Charging casing 8 comprises two feed cavity 30 and 31, by charging aperture hermatic door 6 and charging aperture hermatic door 7 internal atmosphere and external environment is isolated.Charging aperture transfer system 2 and charging aperture transfer system 3 place in the charging casing 8, are sintered solid material 4 and place in the ceramic crucible 5, and the external diameter of ceramic crucible 5 is slightly less than the internal diameter of porcelain bushing 26, simultaneously, gas outlet 9 is arranged on the charging casing 8.Similar with charging casing 8, discharging casing 21 also comprises discharging chamber 32 and 33, by discharging opening hermatic door 24 and discharging opening hermatic door 25 box house atmosphere and external environment is isolated.Discharging transfer system 22 and discharging transfer system 23 place in the discharging casing 21, and air inlet 19 is housed on the discharging casing 21.Different with charging casing 8 is, 3 tops also are housed in the discharging casing 21, and top 17 is installed in discharging casing 21 1 sides side by side with top 18, and is also orthogonal in a plane with the axis of porcelain bushing 26, the height of the about crucible of the spacing of two tops does seesawing; Top 20 is contained in the bottom of discharging casing 21, and is coaxial with porcelain bushing 26, moves up and down.During sintering furnace work, be sintered solid material 4 and place ceramic crucible 5, enter by charging aperture hermatic door 6 in the feed cavity 30 of charging casing 8, when charging aperture hermatic door 6 was opened, charging aperture hermatic door 7 was closed; After several crucibles 5 entered the charging casing, charging aperture hermatic door 6 was closed, and charging aperture hermatic door 7 is opened, and charging aperture transmission system 3 is sent to ceramic crucible 5 in the feed cavity 31 of charging casing 8; Charging aperture hermatic door 7 is closed then, like this, constantly ceramic crucible 5 is sent in the charging casing 8, and the two seals door can reduce the exchange of sintering body of heater internal atmosphere and external environment atmosphere.
After ceramic crucible 5 entered in the feed cavity 31 of charging casing 8, ceramic crucible 5 was sent to the upper entrance place of porcelain bushing 26 by charging transfer system 2, and ceramic crucible 5 is vertical pile in porcelain bushing 26, until the bottom of porcelain bushing 26.By top 20 all ceramic crucible of withstanding in the porcelain bushing 26, top 20 slowly descends under control system control, and the whole ceramic crucible that stacks up 5 all descends thereupon and finish the process of intensification, sintering and cooling in the decline process.When top 20 drops to certain position, come directly towards 17 transverse movements, clamp a crucible that nestles up bottom crucible top, and hold all crucibles in the porcelain bushing.At this moment, continue to descend in top 20, during to certain position, come directly towards 18 transverse movements, a nethermost crucible is shifted onto on the discharging transfer system 22, coming directly towards 18 then regains rapidly, top 20 rises under 17 those crucibles clamped of top, and holds this crucible, at this moment, top 17 withdrawals, top 20 continue slowly to descend under control system control and repeat above-mentioned action.
When shifting crucible on the discharging transfer system 22 onto abundant the time, discharging opening hermatic door 25 is opened, discharging transfer system 22 is sent out crucible 5 inside in the discharging chamber 32 of discharging casing 21, be sent on the discharging transfer system 23, at this moment, discharging opening hermatic door 25 is closed, discharging opening hermatic door 24 is opened, discharging transfer system 23 has been finished these crucible 5 of sintering and has been sintered solid material 4 and sent out discharging chamber 33, finish sintering process, discharging opening hermatic door 24 is closed then, and repeats aforesaid operations.
In said process, microwave source 1 is in opening, constantly in sintering body of heater 13, launch HIGH-POWERED MICROWAVES by transition waceguide 27, the solid material 4 that is sintered that places crucible 5 that enters porcelain bushing 26 absorbs microwave energy, the heat energy heating that is produced by self material and microwave electromagnetic field coupling effect, when crucible 5 descends in porcelain bushing 26, being sintered solid material 4 temperature constantly raises, when crucible 5 positions are in sintering furnace body 13 centres, the temperature that is sintered solid material 4 reaches the highest, carry out sintering process, when crucible 5 continues to descend, be sintered solid material 4 temperature and reduce, when arriving the outlet of porcelain bushing 26 lower ends, temperature has dropped near environment temperature, and sintering process is finished.The highest sintering temperature in center is measured by infrared radiation thermometer 15, leaves the observation port 14 for infrared measurement of temperature on heat-insulation layer 11 and auxiliary absorbed layer 12.The effect of the auxiliary absorbed layer 12 of microwave is absorption portion microwaves, produces higher temperature to reduce crucible 5 and the temperature loss that is sintered solid material 4 surfaces, reduces porcelain bushing 26 temperature gradient inside or outside.Heat-insulation layer 11 can keep most of heat to concentrate on porcelain bushing 26 inside, reduces the transmission of heat to body of heater 13.If be sintered solid material 4 the sintering atmosphere requirement is arranged, can send into gas by the air inlet on the discharging casing 21 19, gas is discharged in the gas outlet 9 from charging casing 8.
During the invention process, sintering body of heater 13, charging casing 8 and discharging casing 21 can be welded by the stainless steel panel beating, and body of heater can be 400 millimeters of the length of sides, high 400 millimeters square bucket.Be sintered solid material 4, as be the ferrite hard magnetic material, press 25 millimeters of embryo external diameters, high 10 millimeters annulus spare weighs 12 grams.Crucible 5 can adopt alumina crucible, and crucible 5 inwalls are of a size of 30 millimeters of diameters, and 35 millimeters of outer wall dimension diameters are high 30 millimeters.Can place 1 to 2 in each crucible and be sintered solid material 4.Porcelain bushing 26 can be the high purity aluminium oxide long tube, 520 millimeters of pipe ranges, 38 millimeters of internal diameters, 45 millimeters of external diameters.Microwave source 1 can be selected QW-5 type 5KW single tube microwave source for use.Auxiliary absorbed layer 12 material therefors of microwave can be mangano-manganic oxide bulky grain filler.Heat-insulation layer 11 can be the silicate fiber cotton.Sealing device 10 and 16 can adopt sealing ring, and the diagram sealing ring is the fire-resistant sealing ring of magnesium carbon, and seal clearance is less than 0.1 millimeter.Sintering temperature can be measured and monitor by Marathon MA1S infrared radiation thermometer.The chain transfer mode that charging and discharging transfer system can adopt stepper motor to drive.Charging aperture and discharging opening hermatic door all can be by small-sized hydraulic oil cylinder driving.Three tops in feed box 21 bodies also can be by small-sized hydraulic oil cylinder driving.Each drive system all can be controlled by computer generalization.The decrease speed of crucible 5 in porcelain bushing 26 can be 15 mm/min, that is to say, the solid material 4 that is sintered that the crucible 5 that just had a sintering to finish in per 2 minutes reaches is wherein sent from porcelain bushing 26.
Claims (10)
1, a kind of solid material sintering furnace, comprise microwave source (1), transition waceguide (27), sintering body of heater (13), heat-insulation layer (11), temperature measurer (15), heat-insulation layer (11) places in the sintering body of heater (13), temperature measurer (15) is arranged on the sintering body of heater (13), microwave source (1) links to each other with sintering body of heater (13) by transition waceguide (27), it is characterized in that also including feed system (28), discharge system (29), transmit sleeve pipe (26) continuously, feed system (28) is connected with sintering body of heater (13) by sealing device (10), discharge system (29) is connected with sintering body of heater (13) by sealing device (16), transmitting sleeve pipe (26) continuously is arranged in the interior heat-insulation layer (11) of sintering body of heater (13), and an end of pipe stretches in the feed system (28), feed system (28) is positioned on the sintering body of heater (13), discharge system (29) is positioned under the sintering body of heater (13), feed system (28), sintering body of heater (13), discharge system (29) is presented, in, following vertical layout.
2, a kind of solid material sintering furnace according to claim 1 is characterized in that transmitting continuously sleeve pipe (26) and is provided with the auxiliary absorbed layer (12) of one section microwave and is looped around outside the continuous transmission sleeve pipe (26).
3, a kind of solid material sintering furnace according to claim 1 is characterized in that sintering body of heater (13) is an all-metal construction microwave multimode cavity, and its level cross-sectionn is shaped as circle or polygon or arc angle polygon.
4, a kind of solid material sintering furnace according to claim 1 is characterized in that microwave source (1) and transition waceguide (27) are furnished with at least one cover around sintering body of heater (13).
5, a kind of solid material sintering furnace according to claim 4 is characterized in that being respectively arranged with one or more groups air inlet (19) and gas outlet (9) on discharge system (29) and feed system (28).
6, a kind of solid material sintering furnace according to claim 4 is characterized in that temperature measurer (15) is an infrared radiation thermometer, and heat-insulation layer (11) and auxiliary absorbed layer (12) are provided with the observation port (14) for infrared measurement of temperature.
7, a kind of solid material sintering furnace according to claim 1, it is characterized in that transmitting continuously sleeve pipe (26) is porcelain bushing.
8, according to the described a kind of solid material sintering furnace of arbitrary claim in the claim 1 to 7, it is characterized in that feed system (28) comprises charging casing (8), two cover charging transfer systems (2) and (3), two fan charging aperture hermatic doors (6) and (7), charging casing (8) comprises two feed cavity (30) and (31), wherein a fan charging aperture hermatic door (6) is arranged on the porch, outer end of the feed cavity (30) that material enters at first, another fan charging aperture hermatic door (7) is arranged between two feed cavity (30) and (31), and two cover charging transfer systems (3) and (2) are separately positioned in feed cavity (30) and (31).
9, a kind of solid material sintering furnace according to claim 8, it is characterized in that discharge system (29) comprises discharging casing (21), two cover discharging transfer systems (22) and (23), two fan discharging opening hermatic doors (24) and (25), three tops (17), (18) and (20), discharging casing (21) comprises two discharging chambeies (32) and (33), wherein a fan discharging opening hermatic door (24) is arranged on the exit, outer end in the discharging chamber (33) that material finally comes out, another fan discharging opening hermatic door (25) is arranged between two discharging chambeies (32) and (33), two cover discharging transfer systems (23) and (22) are separately positioned in discharging chamber (33) and (32), wherein two tops (17) and (18) are installed in a side in the discharging chamber (32) of discharging casing (21), also orthogonal in a plane with the axis of continuous transmission sleeve pipe (26), another top (20) is installed in the bottom in the discharging chamber (32) of discharging casing (21), and is coaxial with continuous transmission sleeve pipe (26).
10, a kind of solid material sintering furnace according to claim 9 is characterized in that charging transfer system (2), charging transfer system (3), discharging transfer system (22), discharging transfer system (23) are chain-type transfer system or rollaway type transmission system.
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| CNB031180183A CN100417904C (en) | 2003-01-15 | 2003-01-15 | Solid material sintering furnace |
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| CNB031180183A CN100417904C (en) | 2003-01-15 | 2003-01-15 | Solid material sintering furnace |
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| CN100417904C CN100417904C (en) | 2008-09-10 |
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| CN101285654B (en) * | 2008-05-13 | 2010-06-09 | 佘松林 | Microwave sintering apparatus and method |
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| CN110260644A (en) * | 2019-06-20 | 2019-09-20 | 株洲诺天电热科技有限公司 | A kind of vertical continuous high temperature electromagnetic heating method and system and device |
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| TWI813845B (en) * | 2020-01-13 | 2023-09-01 | 秦文隆 | Lifting atmosphere sintering device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07117341B2 (en) * | 1991-01-23 | 1995-12-18 | 中小企業事業団 | Microwave heating method for ceramic products |
| CN2597925Y (en) * | 2003-01-15 | 2004-01-07 | 长沙隆泰科技有限公司 | Solid material fritting furnace |
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| CN101285654B (en) * | 2008-05-13 | 2010-06-09 | 佘松林 | Microwave sintering apparatus and method |
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| CN102042749B (en) * | 2010-12-17 | 2012-07-04 | 湖南航天工业总公司 | Fully-closed industrial microwave high-temperature roller continuous sintering kiln |
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| CN110260644A (en) * | 2019-06-20 | 2019-09-20 | 株洲诺天电热科技有限公司 | A kind of vertical continuous high temperature electromagnetic heating method and system and device |
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| TWI813845B (en) * | 2020-01-13 | 2023-09-01 | 秦文隆 | Lifting atmosphere sintering device |
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