CN101318811A - Method for manufacturing toughening ceramic ring of zirconium oxide for valve - Google Patents
Method for manufacturing toughening ceramic ring of zirconium oxide for valve Download PDFInfo
- Publication number
- CN101318811A CN101318811A CNA2008101158271A CN200810115827A CN101318811A CN 101318811 A CN101318811 A CN 101318811A CN A2008101158271 A CNA2008101158271 A CN A2008101158271A CN 200810115827 A CN200810115827 A CN 200810115827A CN 101318811 A CN101318811 A CN 101318811A
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- China
- Prior art keywords
- ceramic ring
- valve
- zirconium oxide
- percent
- toughening ceramic
- 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.)
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- 239000000919 ceramic Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 32
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 title claims description 13
- 229910001928 zirconium oxide Inorganic materials 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 238000005245 sintering Methods 0.000 claims abstract description 18
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 15
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 5
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 5
- 239000002994 raw material Substances 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000005266 casting Methods 0.000 abstract 3
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 abstract 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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 method for manufacturing a zirconia toughening ceramic ring used for a valve. The method is characterized in that ground paste consisting of the compositions by weight percentage of 5 to 7 percent of zirconia, 0.5 to 2 percent of yttria, 0.5 to 1 percent of magnesia, 0.2 to 0.4 percent of a ceramic ground paste dispersing agent and the balance being alpha- alumina is subject to casting and high temperature sintering, then the zirconia toughening ceramic ring is manufactured. The method utilizes the zirconia toughening ceramic material and adopts the casting and high temperature sintering processes to manufacture the ceramic ring with good performance. The method has the advantages that the raw materials are cheap, the casting process is adopted, the high cost of mechanical devices is saved, the production cost is lowered, and the ceramic ring manufactured by the method has long service life and is easy to promote in the industry.
Description
Technical field
A kind of making method of toughening ceramic ring of zirconium oxide for valve relates to a kind of making method of ceramic ring of the valve system that is used for various rotating speeds, pressure and media such as high temperature, high pressure, high rotating speed, deep-etching.
Background technology
Ceramic ring is the major parts of ceramic valve, it also is a kind of vital part that is widely used in tightness system, be directly connected to the scope of application and the life-span of sealing, the mechanical seal of its outfit is used for each field such as space flight, oil, chemical industry, machinery, video, pharmacy and automobile in a large number.Initial, the ceramic ring material of domestic common employing mainly is aluminum oxide and silicon nitride etc.Ceramic ring short, the poor reliability in work-ing life that these materials are made, and use limitation.After this adopt the silicon carbide reaction-sintered technology.The Recipe of conventional reaction sintering silicon carbide ceramic ring has W14, W10 carborundum powder, graphite and additive formulations to form, process through operations such as compacting, first sintering, Vehicle Processing, processing eventually, mill processing, grindings, 1500 ℃ of sintering temperatures will add the metal silicon chip auxiliary material of 1:1.15 during sintering.The many shortcomings of some of silicon carbide reaction-sintered,, purity difference low as carborundum content, mechanical and physical performance are lower, can not be applied to the operating mode and the medium of high temperature, high pressure, deep-etching, also are not suitable for food, medicine trade." a kind of ceramic sealing cup contg, silicon carbide " introduced a kind of preparation method of ceramic sealing cup contg, silicon carbide in (Zheng Youjun, Chinese patent, the patent No.: CN1830900A, in March, 2005).It is characterized in that, adopt the micropowder material of 0.5 μ m, by weight proportion be: W0.5 micro mist 85%～95%, boron carbide powder 2%～9%, liquid gas resin 2%～8% are raw material, and it is made and adopts the ultrahigh-temperature sintering process, and its technology is specific as follows: weigh raw material by weight; Soak, dry, pulverize, sieve at hydrochloric acid after putting into the ball mill ball milling,, be evacuated to less than 1Pa with composition compression moulding shove charge; 700 ℃/h～900 ℃/the h that heats up stops vacuum; Stop to supply gas after towards argon gas to normal pressure; Continue to heat up,, keep burner hearth air pressure 0.01MPa, be warming up to 2170～2200 ℃ of insulations 50～70 minutes 1910～1930 ℃ of insulations 13～17 minutes; Close stove, naturally cooling.
It is loaded down with trivial details that above-mentioned prior art exists technology, and the high and high deficiency of cost should not be applied in industry to equipment requirements.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at above-mentioned prior art, provides a kind of and can simplify technological process effectively, shortens preparation time, reduces production costs the making method of well behaved toughening ceramic ring of zirconium oxide for valve.
Purpose of the present invention is achieved through the following technical solutions.
A kind of making method of toughening ceramic ring of zirconium oxide for valve, it is characterized in that its making processes is that weight percent is consisted of: zirconium white 5%～7%, yttrium oxide 0.5%～2%, magnesium oxide 0.5%～1%, ceramic slurry dispersion agent 0.2%～0.4%, surplus are that slip injection forming, the high temperature sintering of Alpha-alumina made.
The making method of a kind of toughening ceramic ring of zirconium oxide for valve of the present invention is characterized in that the weight in wet base ratio is 21%～24% in the described slurry.
The making method of a kind of toughening ceramic ring of zirconium oxide for valve of the present invention, the temperature that it is characterized in that described high-temperature sintering process is 1650 ℃, sintering time is 8～10 hours.
Method of the present invention adopts the toughened zirconia ceramics material, adopt injection forming, high-sintering process, obtain well behaved ceramic ring, its advantage is: cost of material is cheap, and the employing injection forming has been save expensive mechanical means expense, has reduced production cost, and the ceramic ring long service life that this method is produced is easy in industrial popularization.
Description of drawings
Fig. 1 is the process flow sheet of the inventive method.
Embodiment
A kind of making method of toughening ceramic ring of zirconium oxide for valve, its making processes is that weight percent is consisted of: zirconium white 5%～7%, yttrium oxide 0.5%～2%, magnesium oxide 0.5%～1%, ceramic slurry dispersion agent 0.2%～0.4%, surplus are that slip injection forming, the high temperature sintering of Alpha-alumina made; The weight in wet base ratio is 21%～24% in its slurry; The temperature of high-temperature sintering process is 1650 ℃, and sintering time is 8～10 hours, naturally cooling; Come out of the stove finished product.
Embodiment
A kind of production method of toughening ceramic ring of zirconium oxide for valve is with α-Al
2O
3And raw materials such as zirconium white, yttrium oxide, magnesium oxide, ceramic slurry dispersion agent are by certain proportioning, and weighing grinds in ball mill, add the entry mixing after, adopt injection forming, after the idiosome drying, calcining makes under hot conditions.Take by weighing raw material by weight ratio; The raw material that weighs up is put into the ball mill ball milling; Add entry and dispersion agent is made slip; Through old, with the slip moulding; Shove charge at 1650 ℃ of sintering, is incubated 8～10 hours, naturally cooling; Come out of the stove finished product.
With α-Al
2O
3(1～2 micron of granularity, true density is greater than 3.97g/cm
3) 90.5% and raw materials such as zirconium white 7%, yttrium oxide 2%, magnesium oxide 0.5% by proportioning, weighing, the water that adds ceramic slurry dispersion agent 0.4% and 24% grinds mixing in ball mill, through the old injection forming that adopts then, after the idiosome drying, calcining made toughening ceramic ring of zirconium oxide in 10 hours under 1650 ℃ of hot conditionss.
Claims (3)
1. the making method of a toughening ceramic ring of zirconium oxide for valve, it is characterized in that its making processes is that weight percent is consisted of: zirconium white 5%～7%, yttrium oxide 0.5%～2%, magnesium oxide 0.5%～1%, ceramic slurry dispersion agent 0.2%～0.4%, surplus are that slip injection forming, the high temperature sintering of Alpha-alumina made.
2. the making method of a kind of toughening ceramic ring of zirconium oxide for valve according to claim 1 is characterized in that the weight in wet base ratio is 21%～24% in the described slurry.
3. the making method of a kind of toughening ceramic ring of zirconium oxide for valve according to claim 1, the temperature that it is characterized in that described high-temperature sintering process is 1650 ℃, sintering time is 8～10 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101158271A CN101318811A (en) | 2008-06-27 | 2008-06-27 | Method for manufacturing toughening ceramic ring of zirconium oxide for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101158271A CN101318811A (en) | 2008-06-27 | 2008-06-27 | Method for manufacturing toughening ceramic ring of zirconium oxide for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101318811A true CN101318811A (en) | 2008-12-10 |
Family
ID=40179119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101158271A Pending CN101318811A (en) | 2008-06-27 | 2008-06-27 | Method for manufacturing toughening ceramic ring of zirconium oxide for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101318811A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491736A (en) * | 2011-11-24 | 2012-06-13 | 中国铝业股份有限公司 | Manufacturing method of peraluminous ceramic rings for valves |
| CN110407565A (en) * | 2019-08-07 | 2019-11-05 | 上海泛联科技股份有限公司 | A kind of metering pump ceramic valve ball and preparation method thereof |
| CN113979734A (en) * | 2021-12-03 | 2022-01-28 | 江苏润鸿高温窑具有限公司 | Formula and manufacturing process of ceramic rotor and ceramic stator of ceramic homogenizer |
-
2008
- 2008-06-27 CN CNA2008101158271A patent/CN101318811A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491736A (en) * | 2011-11-24 | 2012-06-13 | 中国铝业股份有限公司 | Manufacturing method of peraluminous ceramic rings for valves |
| CN102491736B (en) * | 2011-11-24 | 2013-03-20 | 中国铝业股份有限公司 | Manufacturing method of peraluminous ceramic rings for valves |
| CN110407565A (en) * | 2019-08-07 | 2019-11-05 | 上海泛联科技股份有限公司 | A kind of metering pump ceramic valve ball and preparation method thereof |
| CN113979734A (en) * | 2021-12-03 | 2022-01-28 | 江苏润鸿高温窑具有限公司 | Formula and manufacturing process of ceramic rotor and ceramic stator of ceramic homogenizer |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20081210 |