CN102351531A - Zirconia ceramic plunger and manufacturing method thereof - Google Patents
Zirconia ceramic plunger and manufacturing method thereof Download PDFInfo
- Publication number
- CN102351531A CN102351531A CN2011101746881A CN201110174688A CN102351531A CN 102351531 A CN102351531 A CN 102351531A CN 2011101746881 A CN2011101746881 A CN 2011101746881A CN 201110174688 A CN201110174688 A CN 201110174688A CN 102351531 A CN102351531 A CN 102351531A
- Authority
- CN
- China
- Prior art keywords
- zirconia ceramics
- plunger
- biscuit
- parts
- sintering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Chemical compound 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O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 239000000919 ceramic Substances 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title abstract description 19
- 235000015895 biscuits Nutrition 0.000 claims abstract description 25
- 238000005245 sintering Methods 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- ZIKATJAYWZUJPY-UHFFFAOYSA-N Thulium(III) oxide Chemical compound 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c+Cg== 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[O-2].[O-2].[O-2].[Tm+3].[Tm+3] ZIKATJAYWZUJPY-UHFFFAOYSA-N 0.000 claims abstract description 8
- RUDFQVOCFDJEEF-UHFFFAOYSA-N oxygen(2-);yttrium(3+) Chemical compound 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[O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910003453 thulium oxide Inorganic materials 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 206010010254 Concussion Diseases 0.000 claims description 14
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Abstract
The invention provides a zirconia ceramic plunger and a manufacturing method thereof. The zirconia ceramic plunger comprises raw materials of, by weight, 92+/-0.1 parts of zirconia, 5+/-0.1 parts of yttrium oxide and 3+/-0.1 parts of thulium oxide. The manufacturing method comprises steps of: step 1, raw material preparation; step 2, biscuit formation; step 3, charging; step 4, sintering; step 5, cooling; step 6, moulding by machining; step 7, surface light and fineness treatment to obtain the zirconia ceramic plunger. The zirconia ceramic plunger of the present invention utilizes a high pressure oscillation high temperature sintering technology; according to pressurization and the pressurization oscillation technology, the sintered zirconia ceramic plunger is more compact, has no pore or crack, so as to enhance product performance, improve production quality and guarantee stability of production quality.
Description
Technical field
The present invention relates to mechanical means and make the field, relate in particular to a kind of zirconia ceramics plunger and preparation method thereof.
Background technology
At present, the manufacturing technology of equipment such as the high pressure plunger pump that domestic enterprise can grasp and produce, hydraulic planger pump, high pressure water cutter, cleaning machine, but higfh-tension ceramics plunger China can't produce.
Have zirconia ceramics plunger product now in high-end market; As the zirconia ceramics plunger that reaches 300-400Mpa pressure is mainly provided by offshore company; The external zirconia ceramics plunger producer that produces adopts the hot isostatic pressing mode mostly mainly in the U.S. and Germany, has reached fine quality.And the zirconia ceramics plunger quality product of domestic production can't be compared with the product that external manufacturer produces at all, can only occupy low-end market.Because homemade ceramic plunger is of poor quality, with low content of technology, can't satisfy market demand at all, therefore still to depend on import.
Mainly there is the problem of two aspects in domestic production zirconia ceramics plunger: the one, and the restriction of production unit.Because the stupalith production unit belongs to ceramic production technology equipment, and is strongly professional, requires the designer must be proficient in the stupalith technology, also to be proficient in the design of agglomerating plant simultaneously.So the difficulty that can't solve production unit is a universal phenomenon.If depend on the import production unit, cost an arm and a leg, the maintenance cost that can't bear especially, production cost is very high.The second, the technical matters research of ceramic new material and the problem of using.Domestic ceramic new material research lags behind developed countries such as America and Europe, and the high barrier of the high investment of novel material and technology causes China enterprise unhappy in the ceramic new material development.
Summary of the invention
The object of the present invention is to provide a kind of zirconia ceramics plunger, have high-quality, high strength, high-density, superior performance.
Another object of the present invention is to provide a kind of making method of above-mentioned zirconia ceramics plunger, adopt two-way concussion sintering process, make the stupalith density that is sintered reach ultimate attainment, superior performance.
Be to realize above-mentioned purpose, the present invention provides a kind of zirconia ceramics plunger, and its raw material comprises that component and weight part thereof are following: 92 ± 0.1 parts of zirconium whites, 5 ± 0.1 parts of yttrium oxides, and 3 ± 0.1 parts of thulium oxides.
The present invention also provides a kind of making method of above-mentioned zirconia ceramics plunger, comprises the steps:
Step 1, preparation of raw material: 92 ± 0.1 parts of zirconium whites, 5 ± 0.1 parts of yttrium oxides, and 3 ± 0.1 parts of thulium oxides;
Step 2, biscuit are shaped: adopt the dry-pressing mode that raw material is made into the rectangular parallelepiped biscuit;
Step 3, charging: biscuit is put into sintering oven, vacuumize, inflated with nitrogen;
Step 4, sintering: adopt the pressurization concussion that biscuit is carried out high temperature sintering;
Step 5, cooling: the biscuit behind the sintering carries out naturally cooling, obtains the rectangular parallelepiped ceramic rod;
Step 6, machine add-on type: with peripheral milling to the rectangular parallelepiped ceramic rod carry out slightly, thin, ground finish;
Step 7, surface mirror processing obtain the zirconia ceramics plunger.
Also comprise step 8, link processing: adopt two chromium, 13 steel loops, internal diameter adopts the coordinating size really up to the mark of 8 silks, under 1 barometric point, is heated to 250-300 ℃; Be inserted in zirconia ceramics plunger termination; Cooling, the zirconia ceramics plunger is held in the steel loop shrinkage tightly, accomplishes link and handles.
Said biscuit length is greater than zirconia ceramics plungers length 10mm, and the biscuit width is greater than zirconia ceramics diameter of plunger 3mm, and the biscuit height is the twice height of zirconia ceramics diameter of plunger.
Said step 4 sintering: when temperature is added to 1050 ℃-1150 ℃, add 150kg/cm
2Concussion adds 250kg/cm when temperature is added to 1510 ℃-1600 ℃
2Concussion, frequency is 100Hz, constant temperature was kept 2 hours and was kept concussion in 1510 ℃ of-1600 ℃ of temperature ranges.
The invention has the beneficial effects as follows: zirconia ceramics plunger of the present invention; Used high pressure concussion high temperature sintering technology; Through pressurization and employing pressurization concussion technology; Make and to be sintered the zirconia ceramics plunger matter is close more; Pore-free, no fine fisssure; Improve performance of products, improved the quality of production, guaranteed the stability of production quality; Produce high performance zirconia ceramics plunger through making method of the present invention, solved the problem that high performance zirconia ceramics plunger depends on import.
Description of drawings
Below in conjunction with accompanying drawing, describe in detail through specific embodiments of the invention, will make technical scheme of the present invention and other beneficial effects apparent.
In the accompanying drawing,
Fig. 1 is the making method schema of zirconia ceramics plunger of the present invention.
Embodiment
The present invention provides a kind of zirconia ceramics plunger, and its raw material comprises that component and weight part thereof are following: 92 ± 0.1 parts of zirconium whites, 5 ± 0.1 parts of yttrium oxides, and 3 ± 0.1 parts of thulium oxides.That this zirconia ceramics plunger has is high-quality, high strength, high-density, superior performance.
As shown in Figure 1, the making method of zirconia ceramics plunger of the present invention comprises the steps:
Step 1, preparation of raw material: take by weighing the granulation powder by a certain percentage, include 92 ± 0.1 parts of zirconium whites, 5 ± 0.1 parts of yttrium oxides, reach 3 ± 0.1 parts of thulium oxides.
Step 2, biscuit are shaped: adopt the dry-pressing mode that raw material is made into the rectangular parallelepiped biscuit; Said biscuit length is the length+10mm of its follow-up zirconia ceramics plunger of processing, and the biscuit width is zirconia ceramics diameter of plunger+3mm, and the biscuit height is the twice height of zirconia ceramics diameter of plunger.
Step 3, charging: biscuit is put into HPV (two-way concussion) sintering oven, vacuumize inflated with nitrogen.
Step 4, HPV sintering: adopt the pressurization concussion that biscuit is carried out high temperature sintering; , temperature adds 150kg/cm when being added to 1050 ℃-1150 ℃
2Concussion adds 250kg/cm when temperature is added to 1510 ℃-1600 ℃
2Concussion, frequency is 100Hz, and keeps 2 hours and keep concussion at 1510 ℃ of-1600 ℃ of constant temperature, and said concussion fully tamps base substrate for concussion simultaneously up and down, and the one-tenth porcelain is tightr, and density reaches capacity.
Step 5, cooling: utilize the naturally cooling in the sintering oven to make the biscuit cooling in it, obtain the rectangular parallelepiped ceramic rod.
Step 6, machine add-on type: with peripheral milling to the rectangular parallelepiped ceramic rod carry out slightly, thin, ground finish, obtain the zirconia ceramics plunger, guarantee the mechanical dimension of zirconia ceramics plunger, meet the specification of zirconia ceramics plunger.
Step 7, surface mirror processing: the zirconia ceramics plunger is carried out surperficial light processing and surface smoothness processing.
Step 8, link are handled: adopt two chromium, 13 steel loops, internal diameter adopts the coordinating size really up to the mark of 8 silks, under 1 barometric point, is heated to 250-300 ℃; Be inserted in zirconia ceramics plunger termination; Naturally cooling, the zirconia ceramics plunger is held in the steel loop shrinkage tightly, accomplishes link and handles.Wherein two chromium, 13 steel loops are the φ 31x14 that adopts two chromium, 13 steel material to process, and internal diameter is the steel loop of φ 22.22.
Zirconia ceramics of the present invention can be referred to as super zirconium white, and the performance comparison such as the following table 1 of existing common zirconia ceramics:
Table 1
| Performance index | Common zirconium white | Super zirconium white |
| Bending strength (MPa) | ≤900 | 1500 |
| Fracture toughness property MPam | ≤11 | ≥18 |
| Hardness HRA | 86 | ≥90 |
| Density (g/cm 3) | 6.03 | 6.07～6.10 |
| Pore-free is arranged | Have | Do not have |
Can know that from last table zirconia ceramics of the present invention is fine and close more, pore-free, no fine fisssure improve performance of products, the quality of production, the stability of assurance product.
In sum; Zirconia ceramics plunger of the present invention; Used high pressure concussion high temperature sintering technology; Through pressurization and employing pressurization concussion technology; Make to be sintered the zirconia ceramics plunger matter is close more that pore-free, no fine fisssure have improved performance of products; Improve the quality of production, guaranteed the stability of production quality; Produce high performance zirconia ceramics plunger through making method of the present invention, solved the problem that high performance zirconia ceramics plunger depends on import.
The above; For the person of ordinary skill of the art; Can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of accompanying Claim of the present invention.
Claims (5)
1. a zirconia ceramics plunger is characterized in that, its raw material comprises that component and weight part thereof are following: 92 ± 0.1 parts of zirconium whites, 5 ± 0.1 parts of yttrium oxides, and 3 ± 0.1 parts of thulium oxides.
2. the making method of a zirconia ceramics plunger as claimed in claim 1 is characterized in that, comprises the steps:
Step 1, preparation of raw material: 92 ± 0.1 parts of zirconium whites, 5 ± 0.1 parts of yttrium oxides, and 3 ± 0.1 parts of thulium oxides;
Step 2, biscuit are shaped: adopt the dry-pressing mode that raw material is made into the rectangular parallelepiped biscuit;
Step 3, charging: biscuit is put into sintering oven, vacuumize, inflated with nitrogen;
Step 4, sintering: adopt the pressurization concussion that biscuit is carried out high temperature sintering;
Step 5, cooling: the biscuit behind the sintering carries out naturally cooling, obtains the rectangular parallelepiped ceramic rod;
Step 6, machine add-on type: with peripheral milling to the rectangular parallelepiped ceramic rod carry out slightly, thin, ground finish;
Step 7, surface mirror processing obtain the zirconia ceramics plunger.
3. making method as claimed in claim 2; It is characterized in that; Also comprise step 8, link processing: adopt two chromium, 13 steel loops; Internal diameter adopts the coordinating size really up to the mark of 8 silks; Under 1 barometric point, be heated to 250-300 ℃, be inserted in zirconia ceramics plunger termination, cooling; The zirconia ceramics plunger is held in the steel loop shrinkage tightly, accomplishes link and handles.
4. making method as claimed in claim 2 is characterized in that, said biscuit length is greater than zirconia ceramics plungers length 10mm, and the biscuit width is greater than zirconia ceramics diameter of plunger 3mm, and the biscuit height is the twice height of zirconia ceramics diameter of plunger.
5. making method as claimed in claim 2 is characterized in that, said step 4 sintering: when temperature is added to 1050 ℃-1150 ℃, add 150kg/cm
2Concussion adds 250kg/cm when temperature is added to 1510 ℃-1600 ℃
2Concussion, frequency is 100Hz, constant temperature was kept 2 hours and was kept concussion in 1510 ℃-1600 temperature ranges.
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| CN 201110174688 CN102351531B (en) | 2011-06-24 | 2011-06-24 | Zirconia ceramic plunger and manufacturing method thereof |
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| CN 201110174688 CN102351531B (en) | 2011-06-24 | 2011-06-24 | Zirconia ceramic plunger and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270487A (en) * | 2016-08-30 | 2017-01-04 | 宁波拓发汽车零部件有限公司 | A kind of electromagnetism connects valve |
| CN106363179A (en) * | 2016-08-30 | 2017-02-01 | 宁波拓发汽车零部件有限公司 | Bottom valve |
| CN107488033A (en) * | 2017-08-08 | 2017-12-19 | 衢州飞瑞特种陶瓷有限公司 | A kind of gel process for preparing of gel-formed zirconium oxide ceramics pole stopper |
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| US6149073A (en) * | 1994-05-18 | 2000-11-21 | Cummins Engine Company, Inc. | Ceramic plunger for internal combustion engine high pressure fuel system |
| CN1458119A (en) * | 2003-04-30 | 2003-11-26 | 天津大学 | Process for preparing polynary zirconia toughened ceramic plunger of oil pump |
| CN101045631A (en) * | 2006-03-03 | 2007-10-03 | 中国科学院上海硅酸盐研究所 | Zirconium oxide ceramic material of ytterbium oxide and yttrium oxide costabilize |
| CN102060530A (en) * | 2010-11-16 | 2011-05-18 | 上海材料研究所 | Preparation method of compact zirconia ceramic plunger |
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- 2011-06-24 CN CN 201110174688 patent/CN102351531B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6149073A (en) * | 1994-05-18 | 2000-11-21 | Cummins Engine Company, Inc. | Ceramic plunger for internal combustion engine high pressure fuel system |
| CN1458119A (en) * | 2003-04-30 | 2003-11-26 | 天津大学 | Process for preparing polynary zirconia toughened ceramic plunger of oil pump |
| CN101045631A (en) * | 2006-03-03 | 2007-10-03 | 中国科学院上海硅酸盐研究所 | Zirconium oxide ceramic material of ytterbium oxide and yttrium oxide costabilize |
| CN102060530A (en) * | 2010-11-16 | 2011-05-18 | 上海材料研究所 | Preparation method of compact zirconia ceramic plunger |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270487A (en) * | 2016-08-30 | 2017-01-04 | 宁波拓发汽车零部件有限公司 | A kind of electromagnetism connects valve |
| CN106363179A (en) * | 2016-08-30 | 2017-02-01 | 宁波拓发汽车零部件有限公司 | Bottom valve |
| CN106270487B (en) * | 2016-08-30 | 2018-08-10 | 宁波拓发汽车零部件有限公司 | A kind of electromagnetism connection valve |
| CN107488033A (en) * | 2017-08-08 | 2017-12-19 | 衢州飞瑞特种陶瓷有限公司 | A kind of gel process for preparing of gel-formed zirconium oxide ceramics pole stopper |
| 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 |
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| CN102351531B (en) | 2013-11-06 |
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