CN102060530B - Preparation method of compact zirconia ceramic plunger - Google Patents
Preparation method of compact zirconia ceramic plunger Download PDFInfo
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- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 239000000919 ceramic Substances 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 26
- 238000005245 sintering Methods 0.000 claims abstract description 20
- 238000000462 isostatic pressing Methods 0.000 claims abstract description 16
- 239000000654 additive Substances 0.000 claims abstract description 14
- 230000000996 additive effect Effects 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 18
- 238000000465 moulding Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 238000005469 granulation Methods 0.000 claims description 16
- 230000003179 granulation Effects 0.000 claims description 16
- 239000002131 composite material Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 11
- 235000019359 magnesium stearate Nutrition 0.000 claims description 9
- 235000021355 Stearic acid Nutrition 0.000 claims description 8
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 8
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 8
- 239000008117 stearic acid Substances 0.000 claims description 8
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 claims description 6
- 229940063655 aluminum stearate Drugs 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 6
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 6
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 5
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 5
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 5
- 239000005642 Oleic acid Substances 0.000 claims description 5
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 5
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 5
- 239000008116 calcium stearate Substances 0.000 claims description 5
- 235000013539 calcium stearate Nutrition 0.000 claims description 5
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 239000003350 kerosene Substances 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 2
- 235000012255 calcium oxide Nutrition 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000000227 grinding Methods 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 229910052727 yttrium Inorganic materials 0.000 description 8
- 239000000306 component Substances 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 235000021313 oleic acid Nutrition 0.000 description 2
- CNGGOAOYPQGTLH-UHFFFAOYSA-N [O-2].[O-2].[Mg+2].[Al+3] Chemical compound [O-2].[O-2].[Mg+2].[Al+3] CNGGOAOYPQGTLH-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to a preparation method of a compact zirconia ceramic plunger. The preparation method comprises the following steps: fully mixing zirconia ceramic granulated powder with a compound additive; placing the obtained mixture in a die for isostatic pressing; sintering the molded sample into a compact zirconia ceramic plunger blank; and finally grinding the blank into the ceramic plunger with precise size. Compared with the prior art, by utilizing the zirconia plunger material and the preparation method thereof provided by the invention, the compactness, the forming efficiency and the finished product ratio of the ceramic plunger are effectively improved. A high-pressure plunger pump manufactured by the compact zirconia ceramic plunger has the advantages of long service life, wear resistance, corrosion resistance, expanded application range, and shortened time for maintaining and replacing a high-pressure plunger and a sealing bush in the case of shutdown, thus saving engineering operating cost.
Description
Technical field
The present invention relates to a kind of preparation method of high pressure plunger pump parts, especially relate to a kind of preparation method of compact zirconia ceramic plunger.
Background technology
Plunger is one of high pressure plunger pump core component, and it is the characteristics of utilizing its wear resistant corrosion resistant, cooperates high-pressure seal ring, in to-and-fro movement, makes water or liquid phase working medium form high pressure fluid.The general shape of plunger is comprised of real core or the hollow rod shaped structure of length-to-diameter ratio 10～20, because operating pressure is high, under high pressure back and forth rub and the impact push-and-pull with sealing material for a long time, so not only require to consist of the material hardness height of plunger, good toughness, and demanding physical dimension and surface smoothness.Plunger material is comprised of antifriction metal (AFM) usually, but in oil, chemical industry, pharmacy, food and high pressure jer cutting, cleaning industry, the liquid phase working medium often is comprised of pure water or seawater, not only working medium pressure is high, poor lubricity, and contain the hard solid phase particles, in application, cause easily corrosion and the wearing and tearing of metal plunger.Cause the ram pump non-stop run life-span short, or operational failure.
Therefore, adopting ceramic plunger to substitute the antifriction metal (AFM) plunger, is the effective way that overcomes its defective.Zirconia ceramics is because having good wear-resistant, corrosion-resistant, high strength, high tenacity and the characteristics such as high temperature resistant.Can in special rugged environment, use, and contaminated material and environment do not replace the metal plunger such as high strength stainless steel, Wimet in hydraulic-mechanic system, can realize prolonging plunger work-ing life, improve equipment operating efficiency, avoid abrasion particle to the pollution texts of material.The preparation of zirconia ceramics mainly contains following four critical process processes.1. preparation of raw material, 2. blank forming, 3. high temperature sintering, 4. ground finish etc.The purpose that solves Zirconia ceramic plunger moulding powder compounding process is: by the factors such as component, dispersion state, the distribution of shaping powder material granularity and moulding wedding agent of control shaping raw material, the compact density of regulation and control base substrate and microstructure and the mechanical property of sintered compact.Reach the micritization that realizes material, reduce little gas hole defect.
The preparation method of zirconia ceramics has wet method and two kinds of techniques of dry method usually.Wet processing is to adopt yttrium oxide PSZ fine powder material through mixing with water-based or organic bond, is modulated into slurry, through cast or injection molding; Dry process is that to adopt yttrium oxide PSZ mist projection granulating powder be raw material, through dry-pressing or etc. static pressure or both in conjunction with compression moulding, have the shaping efficiency height, base substrate high conformity, green density and intensity high.
Because the diameter of compact zirconia ceramics base substrate generally greater than 10mm, adopts wet processing, not only the process-cycle long, complex process, and easy in the process of removing the moulding wedding agent causes the defectives such as blank deformation, cracking, bubble.Therefore, dry process is preparation compact zirconia ceramic plunger effective technical way.The purpose that solves high-density Zirconia ceramic plunger moulding and sintering technology is: on the basis of optimizing materials compounding process, by regulation and control moulding and sintering process parameter, the structural uniformity, the inhibition sintering process gathering pore that improve molding blank produce.Realize sintered compact micritization dense sintering, reduce critical void content, guarantee the raising of comprehensive wear resisting property.
For reaching compact zirconia ceramics high-pressure plunger high-strength wearable, be implemented in the application quality target of the medium-term and long-term safe operation of high pressure load medium, its physical dimension and surface requirements are high, diameter and circularity dimensional tolerance range are 0.02mm, particular requirement must reach the dimensional precision of 6 μ m, and surface smoothness is 0.2.Solve the key problem in technology of ground finish, must by Fixture Design and the design of processing polished operation and the process operation time variable control of abrasive machining apparatus, realize the surface quality target of goods.
Summary of the invention
Purpose of the present invention is exactly to provide in order to overcome the defective that above-mentioned prior art exists that a kind of density height, good toughness, little gas hole defect are few, the preparation method of accurate in size compact zirconia ceramic plunger.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of preparation method of compact zirconia ceramic plunger is characterized in that, the method may further comprise the steps:
(1) modulation of moulding powder: zirconia ceramics granulation powder is (97～98) by weight with composite additive: fully mix (3～2);
(2) mixture that step (1) is obtained places the mould isostatic pressing, and the design of forming mould is fit to elongated zirconia ceramics spare isostatic pressing, and each is even to pressurized to make base substrate, reduces the ununiformity of residual little pore in the base substrate;
(3) high temperature sintering: will sinter the compact zirconia ceramic plunger blank into through formed in mould sample;
(4) ground finish: the ground finish of compact zirconia ceramic plunger blank is become ceramic plunger.
Zirconia ceramics granulation powder described in the step (1) comprises following component and weight part content: zirconium white 85～95, yttrium oxide 4～6, calcium oxide 0.02～0.1 or magnesium oxide 0.02～0.1, aluminum oxide 0.02～2.
Composite additive described in the step (1) is selected from one or more in stearic acid, aluminum stearate, Magnesium Stearate, calcium stearate, aluminum oxide magnesium oxide, calcium oxide, cerium oxide, oleic acid or the kerosene.
Mould described in the step (2) is reached by oil resisting rubber pipe box, porous retainer and consists of with the plug that vacuumizes interface.
Isostatic pressing described in the step (2) adopts following processing condition: forming pressure is 200～240MPa, and the dwell time is 1～6min.
The temperature range of the high temperature sintering described in the step (3) is 1550～1600 ℃.
Ceramic plunger described in the step (4) is hollow ceramic plunger tube or real core ceramics pole stopper.
Compared with prior art, key point of the present invention has been to add the organic additive that can play the effect of powder particle pressuring slip and has improved material hardness, suppresses that material grains is grown up, the inorganic additives of controlled material phase transformation component in raw material, but the compactness of the green density of Effective Raise Zirconia ceramic plunger and sintered compact.Key point of the present invention also is to have designed special-purpose isostatic pressing mold and pressure regime, but the shaping efficiency of Effective Raise Zirconia ceramic plunger and yield rate.Solved high temperature sintering and optimized sintering method and parameter control techniques, made the relative density of the compact zirconia ceramic plunger product of making＞99.1%, through ground finish, diameter and circularity dimensional tolerance range are＜0.015mm that surface smoothness is 0.2.Distinguishingly, diameter and circularity tolerance of dimension reach the dimensional precision of 5 μ m.
The invention has the advantages that, but the compactness of Effective Raise Zirconia ceramic plunger, shaping efficiency and yield rate.The purpose of density height, good toughness, few, the accurate in size high strength plunger of little gas hole defect is prepared in realization.Adopt this compact zirconia ceramic plunger as the core component of high pressure plunger pump; have long service life, wear-resisting, corrosion resistant superiority can be expanded the range of application of ram pump; reduce shutdown maintenance and change high-pressure plunger and seal cartridge number of times, save the engineering operation cost.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
With commercially available 3mol%Y
2O
3Stable zirconia ceramics granulation powder adds the composite additive that contains stearic acid, Ultrafine High-purity Alumina and the components such as calcium stearate, kerosene, presses following weight percent formulated:
3mol%Y
2O
3Stable zirconia ceramics granulation powder 97.6%,
Stearic acid 0.1%,
Calcium stearate 0.15%,
Aluminum oxide 0.02%,
Kerosene 2.13%,
Fully mix in plastic containers, then packing into reaches the moulding mould special that consists of with the plug that vacuumizes interface by oil resisting rubber pipe box, porous retainer, through vacuumizing, reduces the air content in the die cavity; Put into the hydraulic ram of isostatic pressing machine, under the pressure of 200MPa, pressurize moulding in 3 minutes; Under 1580 ℃ sintering temperature, be incubated 150 minutes, through accurately grinding, the specification of making is φ 10 * 260 and φ 12.7 * 165 compact zirconia ceramic plungers, reaches technical feature shown in A row in the table 1.
Embodiment 2
With commercially available 3mol%Y
2O
3Stable zirconia ceramics granulation powder adds the composite additive that contains the components such as aluminum stearate, Magnesium Stearate, oleic acid, presses following weight percent formulated:
3mol%Y
2O
3Stable zirconia ceramics granulation powder 98%,
Aluminum stearate 0.15%,
Magnesium Stearate 0.1%,
Acid oil 1.85%,
Fully mix in plastic containers, then packing into reaches the moulding mould special that consists of with the plug that vacuumizes interface by oil resisting rubber pipe box, porous retainer, through vacuumizing, reduces the air content in the die cavity; Put into the hydraulic ram of isostatic pressing machine, under the pressure of 220MPa, pressurize moulding in 4 minutes; Under 1585 ℃ sintering temperature, be incubated 180 minutes, through accurately grinding, the specification of making is φ 16 * 160 compact zirconia ceramic plungers, reaches technical feature shown in B row in the table 1.
Embodiment 3
With commercially available 3mol%Y
2O
3Stable zirconia ceramics granulation powder adds the composite additive that contains the components such as stearic acid, Magnesium Stearate, oleic acid, presses following weight percent formulated:
3mol%Y
2O
3Stable zirconia ceramics granulation powder 98%,
Stearic acid 0.1%,
Magnesium Stearate 0.1%,
Acid oil 1.8%,
Fully mix in plastic containers, then packing into reaches the moulding mould special that consists of with the plug that vacuumizes interface by oil resisting rubber pipe box, porous retainer, through vacuumizing, reduces the air content in the die cavity; Put into the hydraulic ram of isostatic pressing machine, under the pressure of 240MPa, pressurize moulding in 6 minutes; Under 1595 ℃ sintering temperature, be incubated 180 minutes, through accurately grinding, the specification of making is φ 22.20 * 300 compact zirconia ceramic plungers, reaches technical feature shown in C row in the table 1.
Embodiment 4
With commercially available 3mol%Y
2O
3Stable zirconia ceramics granulation powder adds the composite additive that contains the components such as stearic acid, Magnesium Stearate, oleic acid, presses following weight percent formulated:
3mol%Y
2O
3Stable zirconia ceramics granulation powder 98%,
Stearic acid 0.1%,
Magnesium Stearate 0.1%,
Acid oil 1.8%,
In plastic containers, fully mix the moulding mould special of then packing into and being consisted of by oil resisting rubber, plug and plug; Put into the hydraulic ram of isostatic pressing machine, under the pressure of 200MPa, pressurize moulding in 6 minutes; Under 1595 ℃ sintering temperature, be incubated 220 minutes, through accurately grinding, the specification of making is φ 75 * φ 32 * 380 compact zirconia ceramic plunger pipes, reaches technical feature shown in D row in the table 1.
Table 1
Embodiment 5
A kind of preparation method of compact zirconia ceramic plunger, the method may further comprise the steps:
(1) modulation of moulding powder: be fully to mix at 97: 3 by weight with zirconia ceramics granulation powder and composite additive, wherein zirconia ceramics granulation powder is comprised of following prescription: zirconium white: yttrium oxide: calcium oxide: aluminum oxide is 85: 4: 0.02: 0.02, and composite additive is aluminum stearate;
(2) mixture that step (1) is obtained places by oil resisting rubber pipe box, porous retainer and reaches the mould isostatic pressing that consists of with the plug that vacuumizes interface, the design of forming mould is fit to elongated zirconia ceramics spare isostatic pressing, the control forming pressure is 200MPa, dwell time is 6min, each is even to pressurized to make base substrate, reduces the ununiformity of residual little pore in the base substrate;
(3) high temperature sintering: the temperature of control high temperature sintering is 1550 ℃, will sinter the compact zirconia ceramic plunger blank into through formed in mould sample;
(4) ground finish: the ground finish of compact zirconia ceramic plunger blank is become the hollow ceramic plunger tube.
Embodiment 6
A kind of preparation method of compact zirconia ceramic plunger, the method may further comprise the steps:
(1) modulation of moulding powder: be fully to mix at 98: 2 by weight with zirconia ceramics granulation powder and composite additive, wherein zirconia ceramics granulation powder is comprised of following prescription: zirconium white: yttrium oxide: magnesium oxide: aluminum oxide is 95: 6: 0.1: 2, and composite additive is the mixture of aluminum stearate, Magnesium Stearate and calcium stearate;
(2) mixture that step (1) is obtained places by oil resisting rubber pipe box, porous retainer and reaches the mould isostatic pressing that consists of with the plug that vacuumizes interface, the design of forming mould is fit to elongated zirconia ceramics spare isostatic pressing, the control forming pressure is 240MPa, dwell time is 1min, each is even to pressurized to make base substrate, reduces the ununiformity of residual little pore in the base substrate;
(3) high temperature sintering: the temperature of control high temperature sintering is 1600 ℃, will sinter the compact zirconia ceramic plunger blank into through formed in mould sample;
(4) ground finish: with compact zirconia ceramic plunger blank ground finish Cheng Shixin ceramics pole stopper.
Claims (5)
1. the preparation method of a compact zirconia ceramic plunger is characterized in that, the method may further comprise the steps:
(1) modulation of moulding powder: be that 97 ~ 98 ︰ 3 ~ 2 fully mix by weight with zirconia ceramics granulation powder and composite additive;
(2) mixture that step (1) is obtained places the mould isostatic pressing, and the design of forming mould is fit to elongated zirconia ceramics spare isostatic pressing, and each is even to pressurized to make base substrate, reduces the ununiformity of residual little pore in the base substrate;
(3) high temperature sintering: will sinter the compact zirconia ceramic plunger blank into through formed in mould sample;
(4) ground finish: the ground finish of compact zirconia ceramic plunger blank is become ceramic plunger;
Zirconia ceramics granulation powder described in the step (1) comprises following component and weight part content: zirconium white 85 ~ 95, yttrium oxide 4 ~ 6, calcium oxide 0.02 ~ 0.1 or magnesium oxide 0.02 ~ 0.1, aluminum oxide 0.02 ~ 2; Composite additive is selected from several in stearic acid, aluminum stearate, Magnesium Stearate, calcium stearate, calcium oxide, cerium oxide, oleic acid or the kerosene.
2. the preparation method of a kind of compact zirconia ceramic plunger according to claim 1 is characterized in that, the mould described in the step (2) is reached by oil resisting rubber pipe box, porous retainer and consists of with the plug that vacuumizes interface.
3. the preparation method of a kind of compact zirconia ceramic plunger according to claim 1 is characterized in that, the isostatic pressing described in the step (2) adopts following processing condition: forming pressure is 200 ~ 240MPa, and the dwell time is 1 ~ 6min.
4. the preparation method of a kind of compact zirconia ceramic plunger according to claim 1 is characterized in that, the temperature range of the high temperature sintering described in the step (3) is 1550 ~ 1600 ℃.
5. the preparation method of a kind of compact zirconia ceramic plunger according to claim 1 is characterized in that, the ceramic plunger described in the step (4) is hollow ceramic plunger tube or real core ceramics pole stopper.
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| CN2010105461913A CN102060530B (en) | 2010-11-16 | 2010-11-16 | Preparation method of compact zirconia ceramic plunger |
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| CN2010105461913A CN102060530B (en) | 2010-11-16 | 2010-11-16 | Preparation method of compact zirconia ceramic plunger |
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| CN102351531B (en) * | 2011-06-24 | 2013-11-06 | 深圳市京南瓷业有限公司 | Zirconia ceramic plunger and manufacturing method thereof |
| US8696962B2 (en) * | 2011-09-16 | 2014-04-15 | Corning Incorporated | Methods for reducing defects in ceramic articles and precursors |
| CN103144760B (en) * | 2013-03-01 | 2015-06-10 | 溧阳市科技开发中心 | Aircraft fuselage cover |
| CN106182398A (en) * | 2016-07-08 | 2016-12-07 | 苏州珂玛材料技术有限公司 | A kind of moulding process of ceramic plunger |
| CN107285763B (en) * | 2017-07-19 | 2018-03-09 | 焦作市维纳科技有限公司 | A kind of preparation method of compound zirconia HTHP atomizer |
| CN107488033B (en) * | 2017-08-08 | 2020-06-23 | 衢州飞瑞特种陶瓷有限公司 | Gel preparation method of gel-formed zirconia ceramic plunger rod |
| CN107445615B (en) * | 2017-08-25 | 2020-01-31 | 深圳市商德先进陶瓷股份有限公司 | Zirconia ceramic, preparation method thereof, ceramic plunger and plunger pump |
| CN111774558B (en) * | 2020-06-19 | 2021-12-14 | 江苏兴湖耐火材料有限公司 | Method for manufacturing tundish nozzle with excellent thermal shock stability for continuous casting |
| CN115286366A (en) * | 2022-08-22 | 2022-11-04 | 铜川铜瓷特种陶瓷制造有限公司 | Preparation process of high-strength wear-resistant ceramic microsphere material and plunger |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458119A (en) * | 2003-04-30 | 2003-11-26 | 天津大学 | Process for preparing polynary zirconia toughened ceramic plunger of oil pump |
| CN101514104A (en) * | 2009-04-07 | 2009-08-26 | 广东东方锆业科技股份有限公司 | Zirconium oxide ceramic cylinder jacket material and preparation method thereof |
| CN101638317A (en) * | 2008-08-02 | 2010-02-03 | 比亚迪股份有限公司 | Fully stabilized zirconia ceramic material and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458119A (en) * | 2003-04-30 | 2003-11-26 | 天津大学 | Process for preparing polynary zirconia toughened ceramic plunger of oil pump |
| CN101638317A (en) * | 2008-08-02 | 2010-02-03 | 比亚迪股份有限公司 | Fully stabilized zirconia ceramic material and preparation method thereof |
| CN101514104A (en) * | 2009-04-07 | 2009-08-26 | 广东东方锆业科技股份有限公司 | Zirconium oxide ceramic cylinder jacket material and preparation method thereof |
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