CN102269168A - Rotor pump zirconia ceramic cam wheel and preparation method thereof - Google Patents
Rotor pump zirconia ceramic cam wheel and preparation method thereof Download PDFInfo
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- CN102269168A CN102269168A CN201110168214A CN201110168214A CN102269168A CN 102269168 A CN102269168 A CN 102269168A CN 201110168214 A CN201110168214 A CN 201110168214A CN 201110168214 A CN201110168214 A CN 201110168214A CN 102269168 A CN102269168 A CN 102269168A
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Abstract
The invention provides a rotor pump zirconia ceramic cam wheel and a preparation method thereof. The cam wheel is characterized by comprising a ceramic cylinder 10 with a certain height; the cross section of the cylinder 10 is a three-leaf petal shape; an extruded circle of a petal top part 12 is internally tangent with the excircle of the cross section of the cylinder 10; the radius of the extruded circle of each petal top part 12 is equal to the radius of a hollow circle of a petal root part and the extruded circle and the hollow circle are tangent; and a hollow core 9 in the ceramic cylinder 10 is provided with a key slot 8. The preparation method comprises: preparing raw materials, pressing, sintering and processing, and is characterized by preparing yttria-stabilized zirconia powder with the particle size less than 1mu m into spray granulation powder 7; then placing the powder evenly in a special mold to perform isostatic pressure molding at 50-300Mpa and keeping the pressure for 10-30 minutes; and finally demolding to prepare a rotor pump zirconia ceramic cam wheel green body, and carrying out cold maching after sintering to prepare the rotor pump zirconia ceramic cam wheel. The rotor pump zirconia ceramic cam wheel has the advantages of high intensity, high roughness, excellent wear-resisting property and long service life, and is suitable for industrial production.
Description
Technical field
The present invention relates to a kind of rotor pump zirconia ceramics cam and preparation method, belong to the structural ceramics preparing technical field.
Background technique
The rotor pump cam normally adopts metallic material production, and its shortcoming is heatproof and corrosion-resistant, is applied to the present rotor pump cam 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 zirconia ceramics cam and preparation method that can overcome above-mentioned defective, adapt to operating conditions wide ranges, function admirable.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 zirconia ceramics cam and preparation method, granularity is prepared into the yttria-stabilized zirconia mist projection granulating powder 7 that granularity is 0.1～0.5mm less than 3～5mol% yttria-stabilized zirconia powder of 1 μ m, evenly pack into then in the special mould, at pressure isostatic compaction and pressurize 10～30 minutes under the pressure of 50～300Mpa., rotor pump zirconia ceramics cam base substrate is made in the demoulding then, burnt till at 1450～1650 ℃ * 3～6 hours, through cold working, make rotor pump zirconia ceramics cam.
Described rotor pump zirconia ceramics 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 zirconia ceramics 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 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, 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.
The present invention compared with prior art, its advantage is:
1, the present invention produces rotor pump zirconia ceramics 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, make that rotor pump zirconia ceramics cam overall structure is even, 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
With granularity for make the yttria-stabilized zirconia mist projection granulating powder 7 of 0.1mm less than the yttria-stabilized zirconia powder of the 3mol% of 1 μ m.
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 zirconia ceramics cam base substrate was fired at 1650 ℃ * 3 hours, made rotor pump zirconia ceramics cam blank.
4, the fine finishing of rotor pump zirconia ceramics cam blank is met the requirements of precise measure.
The purity of testing used proportion material is technical pure.
1, feedstock production
With granularity for making the yttria-stabilized zirconia mist projection granulating powder 7 of 0.3mm for the yttria-stabilized zirconia powder of 4.5mol% less than 0.5 μ m.
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 zirconia ceramics cam base substrate after solidifying was fired at 1550 ℃ * 4 hours, made rotor pump zirconia ceramics cam blank.
4, the fine finishing of rotor pump zirconia ceramics cam blank is met the requirements of precise measure.
The purity of testing used proportion material is technical pure.
1, feedstock production
With granularity for make the yttria-stabilized zirconia mist projection granulating powder of 0.5mm less than the yttria-stabilized zirconia powder of the 5mol% of 0.2 μ m.
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 zirconia ceramics cam base substrate was fired at 1450 ℃ * 6 hours, made rotor pump zirconia ceramics cam blank.
4, the fine finishing of rotor pump zirconia ceramics cam blank is met the requirements of precise measure.
The purity of testing used proportion material is technical pure.
Claims (4)
1. rotor pump zirconia ceramics 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 zirconia ceramics cam according to claim 1 and preparation method, comprise feedstock production, compacting, burn till, processing, it is characterized in that: granularity is prepared into the yttria-stabilized zirconia mist projection granulating powder 7 that granularity is 0.1～0.5mm less than 3～5mol% yttria-stabilized zirconia powder of 1 μ m, evenly pack into then in the special mould, at pressure isostatic compaction and pressurize 10～30 minutes under the pressure of 50～300Mpa., rotor pump zirconia ceramics cam base substrate is made in the demoulding then, burnt till at 1450～1650 ℃ * 3～6 hours, through cold working, make rotor pump zirconia ceramics cam.
3. according to claim 1,2 described rotor pump zirconia ceramics cam and preparation methods, 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 pump zirconia ceramics cam and preparation methods, 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 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, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110168214A CN102269168A (en) | 2011-08-25 | 2011-08-25 | Rotor pump zirconia ceramic cam wheel and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110168214A CN102269168A (en) | 2011-08-25 | 2011-08-25 | Rotor pump zirconia ceramic cam wheel and preparation method thereof |
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| CN102269168A true CN102269168A (en) | 2011-12-07 |
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| CN201110168214A Pending CN102269168A (en) | 2011-08-25 | 2011-08-25 | Rotor pump zirconia ceramic cam wheel and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152632A (en) * | 2015-08-06 | 2015-12-16 | 合肥汇智新材料科技有限公司 | Wear resistant ceramic cam ring and preparation method thereof |
| GB2578923A (en) * | 2018-11-14 | 2020-06-03 | Edwards Ltd | A rotor for a twin shaft pump and a twin shaft pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3929498A (en) * | 1972-04-11 | 1975-12-30 | Magnesium Elektron Ltd | Sintered zirconia bodies |
| US6380113B1 (en) * | 1999-05-07 | 2002-04-30 | Korea Institute Of Science & Technology | Tetragonal zirconia ceramic powders, tetragonal zirconia-alumina composite using the ceramic powder and method of preparation for the same |
| CN101184920A (en) * | 2005-05-18 | 2008-05-21 | 布卢马布尔工程有限责任公司 | Gear machine for combining two fluid streams and associated 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 |
-
2011
- 2011-08-25 CN CN201110168214A patent/CN102269168A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3929498A (en) * | 1972-04-11 | 1975-12-30 | Magnesium Elektron Ltd | Sintered zirconia bodies |
| US6380113B1 (en) * | 1999-05-07 | 2002-04-30 | Korea Institute Of Science & Technology | Tetragonal zirconia ceramic powders, tetragonal zirconia-alumina composite using the ceramic powder and method of preparation for the same |
| CN101184920A (en) * | 2005-05-18 | 2008-05-21 | 布卢马布尔工程有限责任公司 | Gear machine for combining two fluid streams and associated 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152632A (en) * | 2015-08-06 | 2015-12-16 | 合肥汇智新材料科技有限公司 | Wear resistant ceramic cam ring and preparation method thereof |
| GB2578923A (en) * | 2018-11-14 | 2020-06-03 | Edwards Ltd | A rotor for a twin shaft pump and a twin shaft pump |
| GB2578923B (en) * | 2018-11-14 | 2021-05-26 | Edwards Ltd | A rotor for a twin shaft pump and a twin shaft pump |
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Application publication date: 20111207 |