CN102251968A - Rotor pump Sialon ceramic cam and preparation method - Google Patents
Rotor pump Sialon ceramic cam and preparation method Download PDFInfo
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- CN102251968A CN102251968A CN2011101682428A CN201110168242A CN102251968A CN 102251968 A CN102251968 A CN 102251968A CN 2011101682428 A CN2011101682428 A CN 2011101682428A CN 201110168242 A CN201110168242 A CN 201110168242A CN 102251968 A CN102251968 A CN 102251968A
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Abstract
The invention provides a rotor pump Sialon ceramic cam and a preparation method. The rotor pump Sialon ceramic cam provided by the invention is characterized by comprising a ceramic cylinder 10 at a certain height, wherein the cross section of the cylinder 10 is in a trifoliate pedal type; the bulged circle at a pedal top 12 is internally tangent to the external circle of the cross section of the cylinder 10; the radius of the bulged circle of each pedal top 12 is equal to that of the depressed circle of a pedal root 11, and the two circles are tangent; and a hollow core 9 in the ceramic cylinder 10 is provided with a key slot 8. The preparation method provided by the invention comprises preparation of raw materials, suppressing, sintering and machining and is characterized in that after silicon nitride powder, aluminum nitride powder and aluminum oxide powder are evenly mixed, the mixture is added with yttrium oxide powder and then evenly mixed so as to be prepared into pelletizing powder 7; the pelletizing powder 7 is uniformly loaded into a tailor-made module; the isostatic pressing is carried out at an appropriate pressure; the demoulding is carried out to prepare a rotor pump Sialon ceramic cam blank body; and the rotor pump Sialon ceramic cam blank body is manufactured into the rotor pump Sialon ceramic cam through sintering. The rotor pump Sialon ceramic cam provided by the invention has the advantages of high intensity, high toughness, excellent wear-resisting property, long service life and suitability for industrial mass production.
Description
Technical field
The present invention relates to a kind of rotor pump and match imperial ceramic cam and preparation method, belong to the structural ceramics preparing technical field.
Background technique
The rotor pump rotor normally adopts metallic material production, and its shortcoming is heatproof and corrosion-resistant, is applied to the present rotor pump rotor contaminated material of producing under the particular surroundings, and working life is short.
Summary of the invention
The object of the present invention is to provide a kind of rotor pump that can overcome above-mentioned defective, adaptation operating conditions wide ranges, function admirable to match imperial ceramic cam and preparation method.Its technological scheme is:
Include the ceramic cylinder 10 of certain altitude, the cross section of cylindrical body 10 is that three leaves are petal-shaped, the cross section cylindrical that circle and cylindrical body 10 are protruded in petal top 12 is inscribe mutually, each petal top 12 protrusion circle radius caves in petal root 11, and circle radius equate and two circles are tangent, and hollows 9 have keyway 8 in the ceramic cylinder 10.
Described rotor pump is matched imperial ceramic cam and preparation method, with silicon nitride powder 32.9～83.1%, add after aluminium nitride powder 4.85～19.2% and alumina powder jointed 12.1～47.9% evenly mixes and be prepared into the granulation powder 7 that granularity is 0.1～0.5mm after granularity is mixed less than 3～6mol% yttrium oxide powder of 1 μ m is even, evenly pack into then in the special mould, at pressure isostatic compaction and pressurize 10～30 minutes under the pressure of 50～300Mpa., the demoulding is made rotor pump and is matched imperial ceramic cam base substrate then, burnt till under the nitrogen atmosphere at 1650～1950 ℃ * 1～3 hour, make rotor pump through cold working and match imperial ceramic cam.
Described rotor pump is matched imperial ceramic cam and preparation method, special mould comprises interior core tube 1, interior core tube liner rubber tube 2, goes up rubber seal plug 3, exterior mould 4, exterior mould liner rubber tube 5, rubber seal plug 6 down, wherein in core tube 1, exterior mould 4 make by the thick stainless steel of 0.5～3mm and on circumferential surface uniform many diameters be the 2mm through hole.
Described rotor pump is matched imperial ceramic cam and preparation method, earlier interior core tube 1 cover is loaded onto inner core mould tube liner rubber tube 2 during compacting, and with following rubber seal plug 6 close fit, then with exterior mould 4 liner exterior mould liner rubber tubes 5, and with following rubber seal plug 6 close fit, the granulation powder 7 of packing into then, to descend rubber seal plug 6 to fill in interior core tube 1 cover again and load onto close fit in the gap of inner core mould tube liner rubber tube 2 and 5 formation of exterior mould 4 liner exterior mould liner rubber tubes, put into the isostatic compaction machine, hydraulic oil is from interior core tube 1, uniform many through holes on exterior mould 4 circumferential surfacies, pressure is acted on granulation powder 7 by rubber tube, compression moulding, the demoulding is made rotor pump and is matched imperial ceramic cam base substrate then.
The present invention compared with prior art, its advantage is:
1, the present invention produces rotor pump and matches imperial ceramic cam uniform microstructure, the intensity height, and the global reliability height adapts to characteristics such as operating conditions wide ranges;
2, because this method has adopted whole isostatic compaction, and it is even to make rotor pump match imperial ceramic cam overall structure, boundary dimension is accurate, long service life.
Description of drawings
Fig. 1 is rotor pump zirconia ceramics cam embodiment's a structural representation;
Fig. 2 is rotor pump zirconia ceramics cam embodiment's a mould structure schematic representation;
Fig. 3 is rotor pump zirconia ceramics cam embodiment's a mould structure plan view.
Among the figure: 1, interior core tube, 2, interior core tube liner rubber tube, 3, go up rubber seal plug, 4, exterior mould, 5, exterior mould liner rubber tube, 6, rubber seal plug down, 7, the granulation powder, 8, keyway, 9, interior hollow, 10, cylindrical body 10.
Embodiment
In the embodiment shown in Fig. 1-3: rotor pump zirconia ceramics cam includes the ceramic cylinder 10 of certain altitude, the cross section of cylindrical body 10 is that three leaves are petal-shaped, the cross section cylindrical that circle and cylindrical body 10 are protruded in petal top 12 is inscribe mutually, each petal top 12 protrusion circle radius caves in petal root 11, and circle radius equate and two circles are tangent, and hollows 9 have keyway 8 in the ceramic cylinder 10.Earlier interior core tube 1 cover is loaded onto inner core mould tube liner rubber tube 2 during compacting, and with following rubber seal plug 6 close fit, then with exterior mould 4 liner exterior mould liner rubber tubes 5, and with following rubber seal plug 6 close fit, the granulation powder 7 of packing into then, to descend rubber seal plug 6 to fill in interior core tube 1 cover again and load onto close fit in the gap of inner core mould tube liner rubber tube 2 and 5 formation of exterior mould 4 liner exterior mould liner rubber tubes, put into the isostatic compaction machine, hydraulic oil is from interior core tube 1, uniform many through holes on exterior mould 4 circumferential surfacies, pressure is acted on a powder 7 by rubber tube, compression moulding, rotor pump zirconia ceramics cam base substrate is made in the demoulding then.
1, feedstock production
After evenly mixing, the 3mol% yttrium oxide powder of granularity less than 1 μ m be prepared into the granulation powder 7 that granularity is 0.1mm with adding after silicon nitride powder 83.1%, aluminium nitride powder 4.85% and the alumina powder jointed 12.1% even mixing.
2, compression moulding
Earlier interior core tube 1 cover is loaded onto inner core mould tube liner rubber tube 2 during compacting, and with following rubber seal plug 6 close fit, then with exterior mould 4 liner exterior mould liner rubber tubes 5, and with following rubber seal plug 6 close fit, the yttria-stabilized zirconia mist projection granulating powder 7 of packing into then, to descend rubber seal plug 6 to fill in interior core tube 1 cover again and load onto close fit in the gap of inner core mould tube liner rubber tube 2 and 5 formation of exterior mould 4 liner exterior mould liner rubber tubes, put into the isostatic compaction machine, the forming under the pressure of 50Mpa and pressurize 10 minutes, hydraulic oil is from interior core tube 1, uniform many through holes on exterior mould 4 circumferential surfacies, pressure is acted on yttria-stabilized zirconia mist projection granulating powder 7 by rubber tube, compression moulding, rotor pump zirconia ceramics cam base substrate is made in the demoulding then.
3, burn till
Rotor pump is matched imperial ceramic cam base substrate fired, make rotor pump and match imperial ceramic cam blank at 1950 ℃ * 1 hour.
4, rotor pump is matched the fine finishing of imperial ceramic cam blank and met the requirements of precise measure.
The purity of testing used proportion material is technical pure.
1, feedstock production
After evenly mixing, the 4.5mol% yttrium oxide powder of granularity less than 1 μ m be prepared into the granulation powder 7 that granularity is 0.3mm with adding after silicon nitride powder 58%, aluminium nitride powder 12% and the alumina powder jointed 30% even mixing.
2, compression moulding
Earlier interior core tube 1 cover is loaded onto inner core mould tube liner rubber tube 2 during compacting, and with following rubber seal plug 6 close fit, then with exterior mould 4 liner exterior mould liner rubber tubes 5, and with following rubber seal plug 6 close fit, the yttria-stabilized zirconia mist projection granulating powder 7 of packing into then, to descend rubber seal plug 6 to fill in interior core tube 1 cover again and load onto close fit in the gap of inner core mould tube liner rubber tube 2 and 5 formation of exterior mould 4 liner exterior mould liner rubber tubes, put into the isostatic compaction machine, the forming under the pressure of 200Mpa and pressurize 20 minutes, hydraulic oil is from interior core tube 1, uniform many through holes on exterior mould 4 circumferential surfacies, pressure is acted on yttria-stabilized zirconia mist projection granulating powder 7 by rubber tube, compression moulding, rotor pump zirconia ceramics cam base substrate is made in the demoulding then.
3, burn till
Rotor pump is matched imperial ceramic cam base substrate fired, make rotor pump and match imperial ceramic cam blank at 1800 ℃ * 2 hours.
4, rotor pump is matched the fine finishing of imperial ceramic cam blank and met the requirements of precise measure.
The purity of testing used proportion material is technical pure.
1, feedstock production
After evenly mixing, the 6mol% yttrium oxide powder of granularity less than 1 μ m be prepared into the granulation powder 7 that granularity is 0.5mm with adding after silicon nitride powder 32.9%, aluminium nitride powder 19.2% and the alumina powder jointed 47.9% even mixing.
2, compression moulding
Earlier interior core tube 1 cover is loaded onto inner core mould tube liner rubber tube 2 during compacting, and with following rubber seal plug 6 close fit, then with exterior mould 4 liner exterior mould liner rubber tubes 5, and with following rubber seal plug 6 close fit, the yttria-stabilized zirconia mist projection granulating powder 7 of packing into then, to descend rubber seal plug 6 to fill in interior core tube 1 cover again and load onto close fit in the gap of inner core mould tube liner rubber tube 2 and 5 formation of exterior mould 4 liner exterior mould liner rubber tubes, put into the isostatic compaction machine, the forming under the pressure of 300Mpa and pressurize 30 minutes, hydraulic oil is from interior core tube 1, uniform many through holes on exterior mould 4 circumferential surfacies, pressure is acted on yttria-stabilized zirconia mist projection granulating powder 7 by rubber tube, compression moulding, rotor pump zirconia ceramics cam base substrate is made in the demoulding then.
3, burn till
Rotor pump is matched imperial ceramic cam base substrate fired, make rotor pump and match imperial ceramic cam blank at 1650 ℃ * 3 hours.
4, rotor pump is matched the fine finishing of imperial ceramic cam blank and met the requirements of precise measure.
The purity of testing used proportion material is technical pure.
Claims (4)
1. a rotor pump is matched imperial ceramic cam and preparation method, it is characterized in that: the ceramic cylinder 10 that includes certain altitude, the cross section of cylindrical body 10 is that three leaves are petal-shaped, the cross section cylindrical that circle and cylindrical body 10 are protruded in petal top 12 is inscribe mutually, each petal top 12 protrusion circle radius caves in petal root 11, and circle radius equate and two circles are tangent, and hollows 9 have keyway 8 in the ceramic cylinder 10.
2. rotor pump according to claim 1 is matched imperial ceramic cam and preparation method, comprise feedstock production, compacting, burn till, processing, it is characterized in that: with silicon nitride powder 32.9～83.1%, add after aluminium nitride powder 4.85～19.2% and alumina powder jointed 12.1～47.9% evenly mixes and be prepared into the granulation powder 7 that granularity is 0.1～0.5mm after granularity is mixed less than 3～6mol% yttrium oxide powder of 1 μ m is even, evenly pack into then in the special mould, at pressure isostatic compaction and pressurize 10～30 minutes under the pressure of 50～300Mpa., the demoulding is made rotor pump and is matched imperial ceramic cam base substrate then, burnt till under the nitrogen atmosphere at 1650～1950 ℃ * 1～3 hour, make rotor pump through cold working and match imperial ceramic cam.
3. match imperial ceramic cam and preparation method according to claim 1,2 described rotor pumps, it is characterized in that: special mould comprises interior core tube 1, interior core tube liner rubber tube 2, goes up rubber seal plug 3, exterior mould 4, exterior mould liner rubber tube 5, rubber seal plug 6 down, wherein in core tube 1, exterior mould 4 make by the thick stainless steel of 0.5～3mm and on circumferential surface uniform many diameters be the 2mm through hole.
4. according to claim 1,2,3 described rotor pumps are matched imperial ceramic cam and preparation method, it is characterized in that: earlier interior core tube 1 cover is loaded onto inner core mould tube liner rubber tube 2 during compacting, and with following rubber seal plug 6 close fit, then with exterior mould 4 liner exterior mould liner rubber tubes 5, and with following rubber seal plug 6 close fit, the granulation powder 7 of packing into then, to descend rubber seal plug 6 to fill in interior core tube 1 cover again and load onto close fit in the gap of inner core mould tube liner rubber tube 2 and 5 formation of exterior mould 4 liner exterior mould liner rubber tubes, put into the isostatic compaction machine, hydraulic oil is from interior core tube 1, uniform many through holes on exterior mould 4 circumferential surfacies, pressure is acted on granulation powder 7 by rubber tube, compression moulding, the demoulding is made rotor pump and is matched imperial ceramic cam base substrate then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110168242.8A CN102251968B (en) | 2011-08-25 | 2011-08-25 | Rotor pump Sialon ceramic cam and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110168242.8A CN102251968B (en) | 2011-08-25 | 2011-08-25 | Rotor pump Sialon ceramic cam and preparation method |
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| CN102251968A true CN102251968A (en) | 2011-11-23 |
| CN102251968B CN102251968B (en) | 2015-03-18 |
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| CN201110168242.8A Expired - Fee Related CN102251968B (en) | 2011-08-25 | 2011-08-25 | Rotor pump Sialon ceramic cam and preparation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782046A (en) * | 2016-05-09 | 2016-07-20 | 北京中兴实强陶瓷轴承有限公司 | Magnetic drive ceramic cam rotor pump |
| CN111683746A (en) * | 2018-02-12 | 2020-09-18 | 亨斯迈石油化学有限责任公司 | Cored round tri-lobed catalyst for the production of maleic anhydride |
| CN112618869A (en) * | 2021-01-11 | 2021-04-09 | 创意银航(山东)技术有限公司 | Winding pipe type flow rate control infusion alarm |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2823601Y (en) * | 2005-03-01 | 2006-10-04 | 山东多信达投资管理有限公司 | Three-blade rotor rotation piston pump |
| CN101323527A (en) * | 2007-06-13 | 2008-12-17 | 山东理工大学 | Preparation of ceramic thermal protection tube |
| CN101655089A (en) * | 2009-08-25 | 2010-02-24 | 山东理工大学 | Ceramic rotor of energy recovery pump and preparation method thereof |
| CN101745974A (en) * | 2008-12-17 | 2010-06-23 | 北京有色金属研究总院 | Method for directly preparing high temperature superconductive flat pre-sintered target blank by isostatic pressing method |
| CN102093058A (en) * | 2010-12-23 | 2011-06-15 | 大连海事大学 | Alpha-SiAlON/BN composite ceramic material and preparation method thereof |
-
2011
- 2011-08-25 CN CN201110168242.8A patent/CN102251968B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2823601Y (en) * | 2005-03-01 | 2006-10-04 | 山东多信达投资管理有限公司 | Three-blade rotor rotation piston pump |
| CN101323527A (en) * | 2007-06-13 | 2008-12-17 | 山东理工大学 | Preparation of ceramic thermal protection tube |
| CN101745974A (en) * | 2008-12-17 | 2010-06-23 | 北京有色金属研究总院 | Method for directly preparing high temperature superconductive flat pre-sintered target blank by isostatic pressing method |
| CN101655089A (en) * | 2009-08-25 | 2010-02-24 | 山东理工大学 | Ceramic rotor of energy recovery pump and preparation method thereof |
| CN102093058A (en) * | 2010-12-23 | 2011-06-15 | 大连海事大学 | Alpha-SiAlON/BN composite ceramic material and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782046A (en) * | 2016-05-09 | 2016-07-20 | 北京中兴实强陶瓷轴承有限公司 | Magnetic drive ceramic cam rotor pump |
| CN111683746A (en) * | 2018-02-12 | 2020-09-18 | 亨斯迈石油化学有限责任公司 | Cored round tri-lobed catalyst for the production of maleic anhydride |
| CN111683746B (en) * | 2018-02-12 | 2023-04-18 | 亨斯迈石油化学有限责任公司 | Cored round tri-lobed catalyst for the production of maleic anhydride |
| CN112618869A (en) * | 2021-01-11 | 2021-04-09 | 创意银航(山东)技术有限公司 | Winding pipe type flow rate control infusion alarm |
| CN112618869B (en) * | 2021-01-11 | 2021-09-10 | 创意银航(山东)技术有限公司 | Winding pipe type flow rate control infusion alarm |
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| CN102251968B (en) | 2015-03-18 |
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Granted publication date: 20150318 Termination date: 20160825 |