CN102464494A - Microwave pressure sintering device - Google Patents
Microwave pressure sintering device Download PDFInfo
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- CN102464494A CN102464494A CN2010105483490A CN201010548349A CN102464494A CN 102464494 A CN102464494 A CN 102464494A CN 2010105483490 A CN2010105483490 A CN 2010105483490A CN 201010548349 A CN201010548349 A CN 201010548349A CN 102464494 A CN102464494 A CN 102464494A
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- heater
- microwave
- sintering device
- pressure sintering
- porcelain knob
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Abstract
The invention discloses a microwave pressure sintering device which comprises a furnace body (4), a base seat with pressurizing components on both ends, a furnace cover (3), a microwave source (13) on the side wall of the furnace body (4) and an atmosphere port communicated with the furnace body (4) and is characterized in that an infrared thermometer (7) is arranged on the side wall of the furnace body (4), and the base seat is a wool-cooled base seat (11) on which the pressurizing component namely a lower ceramic column (8) is arranged; the pressurizing component on the furnace cover (3) is a hydraulic machine (1), and the hydraulic machine (1) is connected with the furnace cover (3) through a corrugated pipe (2); and an upper ceramic column (15) located on the same axis as the lower ceramic column (8) is arranged on an output end of the hydraulic machine (1) located in the furnace body (4), a pressurizing mold (14) covered by a heat cover (6) is arranged between the upper ceramic column (15) and the lower ceramic column (8), and the heat cover (6) is in sleeved connection with the water-cooled base seat (11) through a support (19) at the lower part of the heat cover (6). The microwave pressure sintering device can be used for accurately firing metal, ceramic or composite material products with required density.
Description
Technical field
The present invention relates to a kind of pressure sintering device, especially a kind of microwave pressure sintering device.
Background technology
At present; People for obtain required density have microscopic structures and near metal, pottery and the composite product of theoretical density; The normal microwave exposure equipment that has pressure-producing part that uses is like " a kind of microwave irradiation pressurized sintering equipment and the method for use thereof " mentioned among the disclosed Chinese invention patent Shen Qing Publication specification sheets CN 101786161A on July 28th, 2010.This agglomerating plant is by the framework that has base, and the last bell that has the atmosphere control interface that is equipped with in the framework, furnace side plate, following bell and pressure-producing part formation, wherein; The inwall center of last bell is fixed with seaming chuck; Be equipped with many waveguides and magnetron on the plate of furnace side, the center place is fixed with hydro-cylinder, is equipped with slide block and push-down head on the hydro-cylinder successively; Slide block is connected with following bell through sealing-ring movingly, and push-down head and seaming chuck are on the same plummet.But this agglomerating plant exists weak point, at first, can't know the temperature in the stove exactly because of lacking measurement of furnace temperature equipment, thereby can't regulate effectively it, so can not guarantee the sintering quality of goods; Secondly, higher furnace body temperature makes the temperature drift of base, and is very easily accidents caused; Once more, sealing-ring can not be stopped leakage of air between slide block and the following bell, thereby is difficult for guaranteeing vacuum tightness or required sintering atmosphere in the stove; Inferior again, mostly last push-down head is metal, and its distribution influence to microwave in the stove is bigger, is difficult to guarantee Products Quality; At last, goods to high temperature, owing to do not take the insulation measure, make that the core temperature of sintering zone is high, and lip temperature are low by microwave heating, and it is inhomogeneous to cause goods to be heated, and is unfavorable for the sintering of goods.
Summary of the invention
The technical problem that the present invention will solve provides a kind of rational in infrastructure, practical microwave pressure sintering device for overcoming weak point of the prior art.
For solving technical problem of the present invention, the technical scheme that is adopted is: microwave pressure sintering device comprises that body of heater and its two ends are equipped with the pedestal and the bell of pressure-producing part, and the microwave source on the sidewall of the furnace body, the atmosphere interface that is connected with body of heater, particularly,
Be equipped with infrared thermometer on the said side wall of furnace;
Said pedestal is a water-cooled base, and the pressure-producing part on the said water-cooled base is following porcelain knob;
Pressure-producing part on the said bell is a hydropress, and said hydropress is connected with bell through corrugated tube, is equipped with porcelain knob on the output terminal that is arranged in body of heater of said hydropress, and said upward porcelain knob and said porcelain knob down are positioned on the same axis;
Between said upward porcelain knob and the following porcelain knob is pressurizing mold, and said pressurizing mold is covered with stay-warm case, and said stay-warm case is connected with the water-cooled base cutting ferrule through the support of its underpart.
As the further improvement of microwave pressure sintering device, the temperature detector of described infrared thermometer is positioned on the axis in infrared measurement of temperature hole of stay-warm case; Described corrugated tube is metallic bellows or rubber bellows; The material of described pressurizing mold is alumina-ceramic or silicon nitride ceramics, is equipped with thermopair on its outer wall; Described stay-warm case is a round barrel shape, and its material is a ceramic alumina fiber, or the zirconia ceramics fiber, or the yttrium fiber; Be equipped with the ceramic particle weighting material between described support and the following porcelain knob; Described body of heater is the stainless steel mirror spare that has the water-cooled interlayer; Described bell is the stainless steel mirror spare that has the water-cooled interlayer; Described microwave source is three technical grade magnetrons that are distributed on the same xsect in body of heater middle part, perhaps for placing a technical grade magnetron in the middle part of the body of heater, and is equipped with the microwave agitation device in the body of heater on its opposite; Described atmosphere interface is vacuum subassembly, inlet pipe, vapor pipe and the tensimeter that is connected respectively with body of heater.
Beneficial effect with respect to prior art is, be used in and be equipped with infrared thermometer, pedestal on the side wall of furnace be water-cooled base, hydropress through corrugated tube be connected with bell, the pressure head of pressure-producing part is covered with stay-warm case for porcelain knob and last porcelain knob, pressurizing mold down, and the technical scheme that is connected with the water-cooled base cutting ferrule of the support of stay-warm case through its underpart; Can momentarily understand the temperature in the stove; Have laid a good foundation for real-time temperature control, avoided the temperature rise of base again, stopped the accident that high temperature causes; Guaranteed that also vacuum tightness or sintering atmosphere in the stove is when hydropress carries out compression motion; Can not occur because of leakage problem produces bigger fluctuation,, and will drop to minimum the influence that microwave distributes more because of ceramics pole self is the low-dielectric loss material; Simultaneously; The stay-warm case that adds not only makes the temperature of sintering zone even, has also reduced the loss of heat, has practiced thrift the energy.
As the further embodiment of beneficial effect, the one, the temperature detector of infrared thermometer is preferably placed on the axis in infrared measurement of temperature hole of stay-warm case, makes thermometric more accurate; The 2nd, corrugated tube is preferably metallic bellows or rubber bellows, both all can reach the purpose of sealing, can realize transmitting through recoverable deformation the effect of pressure again; The 3rd, the material of pressurizing mold is preferably alumina-ceramic or silicon nitride ceramics, preferably is equipped with thermopair on its outer wall, makes it not only can see through microwave well, have high temperature resistant and the good mechanical performance, also is easy to make thermometric more accurate; The 4th, stay-warm case is preferably round barrel shape, and its material is preferably ceramic alumina fiber, or the zirconia ceramics fiber, or the yttrium fiber, except that being beneficial to insulation, also is convenient to implement; The 5th, preferably be equipped with the ceramic particle weighting material between support and the following porcelain knob, be beneficial to heat insulating; The 6th, body of heater is preferably the stainless steel mirror spare that has the water-cooled interlayer, and bell is preferably the stainless steel mirror spare that has the water-cooled interlayer, and all avoided body of heater and bell Yin Gaowen and be out of shape, and the drawback that is prone to scald operator; The 7th, microwave source is preferably three technical grade magnetrons that are distributed on the same xsect in body of heater middle part, perhaps is preferably a technical grade magnetron that places the body of heater middle part, and is equipped with the microwave agitation device in the body of heater on its opposite, all is beneficial to even that microwave distributes in the stove; The 8th, the atmosphere interface is preferably vacuum subassembly, inlet pipe, vapor pipe and the tensimeter that is connected respectively with body of heater, is convenient to the control to vacuum tightness in the stove and work atmosphere.
Description of drawings
Below in conjunction with accompanying drawing optimal way of the present invention is done further detailed explanation.
Fig. 1 is a kind of substruction synoptic diagram of the present invention.
Fig. 2 be among Fig. 1 A-A to the partial cutaway schematic that on same xsect, adopts three technical grade magnetrons.
Fig. 3 be among Fig. 1 A-A on same xsect, adopt a technical grade magnetron, and be equipped with the partial cutaway schematic of microwave agitation device in the body of heater on its opposite.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, be equipped with microwave source 13 on the sidewall that the lower end of body of heater 4 is fixed on the water-cooled base 11, the upper end is bell 3, middle part; Wherein, Body of heater 4 is the stainless steel mirror spare that has the water-cooled interlayer with bell 3; Microwave source 13 is for being distributed in three the technical grade magnetrons (perhaps for to place a technical grade magnetron at body of heater 4 middle parts, and being equipped with microwave agitation device 18 in the body of heater 4 on its opposite) on the same xsect in body of heater 4 middle parts.
Be equipped with down porcelain knob 8 on the water-cooled base 11.
Bell 3 is connected with hydropress 1 through corrugated tube 2; Wherein, corrugated tube 2 is metallic bellows (or rubber bellows).Be equipped with porcelain knob 15 on the output terminal that is arranged in body of heater 4 of hydropress 1, the following porcelain knob 8 that is equipped with on porcelain knob 15 and the water-cooled base 11 on this is positioned on the same axis.
Between last porcelain knob 15 and the following porcelain knob 8 is pressurizing mold 14; Wherein, the material of pressurizing mold 14 is alumina-ceramic (or silicon nitride ceramics), is equipped with thermopair 5 on its outer wall.Pressurizing mold 14 is covered with stay-warm case 6; Wherein, stay-warm case 6 is a round barrel shape, and its material is ceramic alumina fiber (or zirconia ceramics fiber, or yttrium fiber).Stay-warm case 6 is connected with water-cooled base 11 cutting ferrules through the support 19 of its underpart; Wherein, be equipped with ceramic particle weighting material 12 between support 19 and the following porcelain knob 8.Also be equipped with infrared thermometer 7 on the sidewall of body of heater 4; Wherein, the temperature detector of infrared thermometer 7 is positioned on the axis in infrared measurement of temperature hole 21 of stay-warm case 6.
Also be equipped with coupled logical vacuum subassembly 9, inlet pipe 10, vapor pipe 16 and tensimeter 17 on the body of heater 4 respectively.
During use; Only need earlier the goods 20 of pressurization to be sintered are placed pressurizing mold 14, insert water coolant more respectively, vacuumize gas that back feedings need, pressure that primer fluid press 1 works in setting, start microwave source 13 and heat until end with the heating temperature curve of setting by the sintering atmosphere that is provided with; In the pressurization and the process of heating, according to the temperature information of infrared thermometer 7 with thermopair 5 outputs, can be artificial or automatically the output rating of microwave source 13 is regulated through temperature controlling system, to reach the best effect of firing.After goods 20 are cooled to room temperature, remove successively hydropress 1 pressure, open bell 3, take out the pressurizing mold 14 and the demouldings that goods 20 are housed, promptly obtain required sintering finished---goods 20.
Obviously, those skilled in the art can carry out various changes and modification to microwave pressure sintering device of the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a microwave pressure sintering device comprises that body of heater (4) and its two ends are equipped with the pedestal and the bell (3) of pressure-producing part, and the microwave source (13) on body of heater (4) sidewall, with the atmosphere interface that body of heater (4) is connected, it is characterized in that:
Be equipped with infrared thermometer (7) on the sidewall of said body of heater (4);
Said pedestal is water-cooled base (11), and the pressure-producing part on the said water-cooled base (11) is following porcelain knob (8);
Pressure-producing part on the said bell (3) is hydropress (1); Said hydropress (1) is connected with bell (3) through corrugated tube (2); Be equipped with porcelain knob (15) on the output terminal that is arranged in body of heater (4) of said hydropress (1), the said porcelain knob (15) of going up is positioned on the same axis with said porcelain knob (8) down;
Between said upward porcelain knob (15) and the following porcelain knob (8) is pressurizing mold (14), and said pressurizing mold (14) is covered with stay-warm case (6), and said stay-warm case (6) is connected with water-cooled base (11) cutting ferrule through the support (19) of its underpart.
2. microwave pressure sintering device according to claim 1, the temperature detector that it is characterized in that infrared thermometer (7) are positioned on the axis in infrared measurement of temperature hole (21) of stay-warm case (6).
3. microwave pressure sintering device according to claim 1 is characterized in that corrugated tube (2) is metallic bellows or rubber bellows.
4. microwave pressure sintering device according to claim 1, the material that it is characterized in that pressurizing mold (14) is alumina-ceramic or silicon nitride ceramics, is equipped with thermopair (5) on its outer wall.
5. microwave pressure sintering device according to claim 1 is characterized in that stay-warm case (6) is a round barrel shape, and its material is a ceramic alumina fiber, or the zirconia ceramics fiber, or the yttrium fiber.
6. microwave pressure sintering device according to claim 1 is characterized in that being equipped with ceramic particle weighting material (12) between support (19) and the following porcelain knob (8).
7. microwave pressure sintering device according to claim 1 is characterized in that body of heater (4) is for having the stainless steel mirror spare of water-cooled interlayer.
8. microwave pressure sintering device according to claim 1 is characterized in that bell (3) is for having the stainless steel mirror spare of water-cooled interlayer.
9. microwave pressure sintering device according to claim 1; It is characterized in that microwave source (13) is for being distributed in three technical grade magnetrons on the same xsect in the middle part of the body of heater (4); Perhaps for placing a technical grade magnetron in the middle part of the body of heater (4), and be equipped with microwave agitation device (18) in the body of heater on its opposite (4).
10. microwave pressure sintering device according to claim 1 is characterized in that the atmosphere interface is vacuum subassembly (9), inlet pipe (10), vapor pipe (16) and the tensimeter (17) that is connected respectively with body of heater (4).
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CN2010105483490A CN102464494A (en) | 2010-11-16 | 2010-11-16 | Microwave pressure sintering device |
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CN2010105483490A CN102464494A (en) | 2010-11-16 | 2010-11-16 | Microwave pressure sintering device |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114608311A (en) * | 2022-01-24 | 2022-06-10 | 快克智能装备股份有限公司 | Sintering equipment and controllable pressure sintering mechanism of atmosphere thereof |
CN115742438A (en) * | 2022-10-21 | 2023-03-07 | 华为数字能源技术有限公司 | Die-casting forming method, die and compression molding device |
Citations (5)
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JPH0813123A (en) * | 1994-06-28 | 1996-01-16 | Sumitomo Metal Ind Ltd | Vertical batch type nitriding furnace |
CN1302707A (en) * | 2001-01-20 | 2001-07-11 | 昆明理工大学 | Plasma technology for activating sintered material |
CN2687594Y (en) * | 2004-03-18 | 2005-03-23 | 杨林 | Controllable atmosphere microwave high temperature heating furnace |
CN201488530U (en) * | 2009-09-18 | 2010-05-26 | 沈阳恒进真空科技有限公司 | Vacuum sintering furnace in 1,800 DEG C high-temperature protective atmosphere |
CN101786161A (en) * | 2010-01-19 | 2010-07-28 | 武汉科技大学 | Microwave irradiation pressurized sintering equipment and use method thereof |
-
2010
- 2010-11-16 CN CN2010105483490A patent/CN102464494A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0813123A (en) * | 1994-06-28 | 1996-01-16 | Sumitomo Metal Ind Ltd | Vertical batch type nitriding furnace |
CN1302707A (en) * | 2001-01-20 | 2001-07-11 | 昆明理工大学 | Plasma technology for activating sintered material |
CN2687594Y (en) * | 2004-03-18 | 2005-03-23 | 杨林 | Controllable atmosphere microwave high temperature heating furnace |
CN201488530U (en) * | 2009-09-18 | 2010-05-26 | 沈阳恒进真空科技有限公司 | Vacuum sintering furnace in 1,800 DEG C high-temperature protective atmosphere |
CN101786161A (en) * | 2010-01-19 | 2010-07-28 | 武汉科技大学 | Microwave irradiation pressurized sintering equipment and use method thereof |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114608311A (en) * | 2022-01-24 | 2022-06-10 | 快克智能装备股份有限公司 | Sintering equipment and controllable pressure sintering mechanism of atmosphere thereof |
CN115742438A (en) * | 2022-10-21 | 2023-03-07 | 华为数字能源技术有限公司 | Die-casting forming method, die and compression molding device |
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Application publication date: 20120523 |