CN102491736A - Manufacturing method of peraluminous ceramic rings for valves - Google Patents
Manufacturing method of peraluminous ceramic rings for valves Download PDFInfo
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- CN102491736A CN102491736A CN2011103778637A CN201110377863A CN102491736A CN 102491736 A CN102491736 A CN 102491736A CN 2011103778637 A CN2011103778637 A CN 2011103778637A CN 201110377863 A CN201110377863 A CN 201110377863A CN 102491736 A CN102491736 A CN 102491736A
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- Prior art keywords
- clay
- yuzhou
- peraluminous
- manufacturing
- ceramic ring
- 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 35
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 239000004927 clay Substances 0.000 claims abstract description 24
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 22
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 11
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 11
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000454 talc Substances 0.000 claims abstract description 11
- 235000012222 talc Nutrition 0.000 claims abstract description 11
- 229910052623 talc Inorganic materials 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 31
- 238000002360 preparation method Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 12
- 238000000498 ball milling Methods 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 10
- 235000012204 lemonade/lime carbonate Nutrition 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 10
- 235000017550 sodium carbonate Nutrition 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 8
- 239000011505 plaster Substances 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 239000011268 mixed slurry Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 abstract description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- 229910052650 alkali feldspar Inorganic materials 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 229910052570 clay Inorganic materials 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 7
- 210000001161 mammalian embryo Anatomy 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 238000007789 sealing 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
- 230000007812 deficiency Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000843 powder Substances 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
- 235000013305 food Nutrition 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
- 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
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 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
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
Disclosed is a manufacturing method of peraluminous ceramic rings for valves, which particularly relates to a manufacturing method of peraluminous ceramic rings for valves of various rotation speed, pressure and medium devices resistant to high temperature, high pressure, high rotation speed and corrosion. The manufacturing method is characterized by including steps of compounding and grinding alpha-aluminum oxide, mesa clay, Yuzhou alkali feldspar, Yuzhou clay, talcum and calcium carbonate, adding a small quantity of chromium sesquioxide, water glass sodium carbonate and water to mix uniformly, grouting and forming, and burning a dried blank so that a peraluminous ceramic ring is formed. The manufacturing method utilizing aluminum oxide, clay and the like to manufacture peraluminous ceramic rings for the valves is low in price, and expansive mechanical equipment is omitted and production cost is reduced due to the grouting forming process. Further, the peraluminous ceramic rings manufactured by the manufacturing method are long in service lives and easy to be popularized in the industry.
Description
Technical field
A kind of valve relates to a kind of preparation method who is used for the valve of various rotating speeds, pressure and medium apparatus such as high temperature, high pressure, high rotating speed, deep-etching with high alumina matter ceramic ring with the preparation method of high alumina matter ceramic ring.
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.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 of these material, and use limitation.
Adopt the silicon carbide reaction-sintered technology at present.The Recipe of conventional reaction sintering silicon carbide ceramic ring has W14, W10 carborundum powder, graphite and additive formulations to form; Form through working procedure processing 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 like 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: by weight weighing raw material; Soak, dry, pulverize, sieve at hydrochloric acid after putting into the ball mill ball milling,, be evacuated to less than 1Pa with compsn compression moulding shove charge; 700 ℃/h～900 ℃/the h that heats up stops vacuum; Behind argon gas to normal pressure, stop to supply gas; 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
The object of the invention is exactly the deficiency that exists to above-mentioned prior art; Provide a kind of and can simplify technological process effectively; Shorten preparation time, reduce production costs, be easy in industry, to apply and well behaved valve with the preparation method of high alumina matter ceramic ring.
The objective of the invention is to realize through following technical scheme.
A kind of valve is with the preparation method of high alumina matter ceramic ring; It is characterized in that the preparation process is with Alpha-alumina, tafelberg clay, Yuzhou alkali stone, Yuzhou clay, gives birth to talcum and lime carbonate feed proportioning, grinds; After adding a small amount of chromium sesquioxide, water glass, yellow soda ash and water mixing again; Injection forming after the idiosome drying, is calcined and is made.
A kind of valve of the present invention is with the preparation method of high alumina matter ceramic ring; The mass percentage content that it is characterized in that said each component of feed proportioning is: Alpha-alumina 70%～80%, tafelberg clay 5%～7%, Yuzhou alkali stone 4%～6%, Yuzhou clay 5%～7%, living talcum 3%～4.5%, lime carbonate 3%～5.5% add chromium sesquioxide 2%～3%, water glass 0.2%～0.5%, yellow soda ash 0.2%～0.5%.
A kind of valve of the present invention is characterized in that with the preparation method of high alumina matter ceramic ring described casting process is that mixed slurry was put into the ball mill ball milling 20 hours, sieves through old then, and slip is injected the plaster mold injection forming.
A kind of valve of the present invention is characterized in that adopting high-sintering process with the preparation method of high alumina matter ceramic ring, and its technology is following: weigh raw material by weight ratio; The raw material that weighs up is put into the ball mill ball milling; The water of adding 30%～35% is processed slip; With the slip moulding; Shove charge at 1480 ℃～1550 ℃ sintering, is incubated 10～12 hours, naturally cooling; Come out of the stove, process finished product.
Method of the present invention adopts feedstock production high alumina matter valves such as commercial alumina, clay to use ceramic ring, and adopts injection forming, high-sintering process, obtains well behaved ceramic ring; Its advantage is: its 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 industry, promote.
Embodiment
A kind of valve is with the preparation method of high alumina matter ceramic ring, with raw materials by weight: Alpha-alumina 70%～80%, tafelberg clay 5%～7%, Yuzhou alkali stone 4%～6%, Yuzhou clay 5%～7%, give birth to talcum 3%～4.5%, lime carbonate 3%～5.5%, add chromium sesquioxide 2%～2.5%, water glass 0.2%～0.5%, yellow soda ash 0.2%～0.5%; Water 30%～35% was put into the ball mill ball milling 20 hours, then through old; All sieve through 250#; Slip is injected the plaster mold of design, take out idiosome after for some time, repair embryo, drying; Calcined 8～12 hours down in 1480 ℃～1550 ℃, can obtain well behaved high alumina matter ceramic ring.
Embodiment 1
Raw material is pressed Alpha-alumina 70wt%, tafelberg clay 7wt%, Yuzhou alkali stone 6wt%, Yuzhou clay 7wt%, given birth to talcum 4.5wt%, lime carbonate 5.5wt%, add chromium sesquioxide 2.04wt%, water glass 0.22wt%, yellow soda ash 0.25wt%, water 31wt%; Put into the ball mill ball milling 20 hours; Through old, all, slip is injected the plaster mold of design then through the 250# sieve; Take out idiosome after for some time; Repair embryo, drying, calcined 8.5 hours down, can obtain well behaved high alumina matter ceramic ring in 1480 ℃.
Embodiment 2
Raw material is pressed Alpha-alumina 73wt%, tafelberg clay 7wt%, Yuzhou alkali stone 5.5wt%, Yuzhou clay 6wt%, given birth to talcum 4.0wt%, lime carbonate 4.5wt%, add chromium sesquioxide 2.18wt%, water glass 0.28wt%, yellow soda ash 0.35wt%, water 32wt%; Put into the ball mill ball milling 20 hours; Through old, all, slip is injected the plaster mold of design then through the 250# sieve; Take out idiosome after for some time; Repair embryo, drying, calcined 10 hours down, can obtain well behaved high alumina matter ceramic ring in 1495 ℃.
Embodiment 3
Raw material is pressed Alpha-alumina 76wt%, tafelberg clay 6wt%, Yuzhou alkali stone 5wt%, Yuzhou clay 6wt%, given birth to talcum 3.4wt%, lime carbonate 3.6wt%, add chromium sesquioxide 2.25wt%, water glass 0.35wt%, yellow soda ash 0.26wt%, water 33wt%; Put into the ball mill ball milling 20 hours; Through old, all, slip is injected the plaster mold of design then through the 250# sieve; Take out idiosome after for some time; Repair embryo, drying, calcined 10 hours down, can obtain well behaved high alumina matter ceramic ring in 1510 ℃.
Embodiment 4
Raw material is pressed Alpha-alumina 78wt%, tafelberg clay 5.4wt%, Yuzhou alkali stone 4.5wt%, Yuzhou clay 5 wt%, given birth to talcum 3.6wt%, lime carbonate 3.5wt%, add chromium sesquioxide 2.42wt%, water glass 0.4wt%, yellow soda ash 0.4wt%, water 33.5wt%; Put into the ball mill ball milling 20 hours; Through old, all, slip is injected the plaster mold of design then through the 250# sieve; Take out idiosome after for some time; Repair embryo, drying, calcined 10.5 hours down, can obtain well behaved high alumina matter ceramic ring in 1530 ℃.
Embodiment 5
Raw material is pressed Alpha-alumina 80wt%, tafelberg clay 5wt%, Yuzhou alkali stone 4wt%, Yuzhou clay 5wt%, given birth to talcum 3wt%, lime carbonate 3wt%, add chromium sesquioxide 2.5wt%, water glass 0. 5wt%, yellow soda ash 0.45wt%, water 35wt%; Put into the ball mill ball milling 20 hours; Through old, all, slip is injected the plaster mold of design then through the 250# sieve; Take out idiosome after for some time; Repair embryo, drying, calcined 12 hours down, can obtain well behaved high alumina matter ceramic ring in 1550 ℃.
Claims (4)
1. a valve is with the preparation method of high alumina matter ceramic ring; It is characterized in that the preparation process is with Alpha-alumina, tafelberg clay, Yuzhou alkali stone, Yuzhou clay, gives birth to talcum and lime carbonate feed proportioning, grinds; After adding a small amount of chromium sesquioxide, water glass, yellow soda ash and water mixing again; Injection forming after the idiosome drying, is calcined and is made.
2. a kind of valve according to claim 1 is with the preparation method of high alumina matter ceramic ring; The mass percentage content that it is characterized in that said each component of feed proportioning is: Alpha-alumina 70%～80%, tafelberg clay 5%～7%, Yuzhou alkali stone 4%～6%, Yuzhou clay 5%～7%, living talcum 3%～4.5%, lime carbonate 3%～5.5% add chromium sesquioxide 2%～3%, water glass 0.2%～0.5%, yellow soda ash 0.2%～0.5%.
3. a kind of valve according to claim 1 is with the preparation method of high alumina matter ceramic ring; It is characterized in that described casting process is that mixed slurry was put into the ball mill ball milling 20 hours; Sieve through old then, slip is injected the plaster mold injection forming.
4. a kind of valve according to claim 1 is characterized in that adopting high-sintering process with the preparation method of high alumina matter ceramic ring, and its technology is following: weigh raw material by weight ratio; The raw material that weighs up is put into the ball mill ball milling; The water of adding 30%～35% is processed slip; With the slip moulding; Shove charge at 1480 ℃～1550 ℃ sintering, is incubated 10～12 hours, naturally cooling; Come out of the stove, process finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110377863 CN102491736B (en) | 2011-11-24 | 2011-11-24 | Manufacturing method of peraluminous ceramic rings for valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110377863 CN102491736B (en) | 2011-11-24 | 2011-11-24 | Manufacturing method of peraluminous ceramic rings for valves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102491736A true CN102491736A (en) | 2012-06-13 |
| CN102491736B CN102491736B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110377863 Active CN102491736B (en) | 2011-11-24 | 2011-11-24 | Manufacturing method of peraluminous ceramic rings for valves |
Country Status (1)
| Country | Link |
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| CN (1) | CN102491736B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396094A (en) * | 2013-08-07 | 2013-11-20 | 陈永定 | Special clay and manufacturing method thereof |
| CN104788083A (en) * | 2015-04-09 | 2015-07-22 | 景德镇晶达新材料有限公司 | Alumina ceramic ring having high thermal shock resistance and used for polycrystalline silicon reduction furnace as well as preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306944A (en) * | 2008-06-24 | 2008-11-19 | 中国铝业股份有限公司 | Green alumina ceramic and method for preparing same |
| CN101318811A (en) * | 2008-06-27 | 2008-12-10 | 中国铝业股份有限公司 | Method for manufacturing toughening ceramic ring of zirconium oxide for valve |
| CN101407410A (en) * | 2008-11-11 | 2009-04-15 | 中国铝业股份有限公司 | Method of preparing alumina ceramic prilling powder for sealed ring |
| CN101747026A (en) * | 2009-12-18 | 2010-06-23 | 中国铝业股份有限公司 | Preparation method of special aluminium oxide ceramics for sealing ring |
-
2011
- 2011-11-24 CN CN 201110377863 patent/CN102491736B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306944A (en) * | 2008-06-24 | 2008-11-19 | 中国铝业股份有限公司 | Green alumina ceramic and method for preparing same |
| CN101318811A (en) * | 2008-06-27 | 2008-12-10 | 中国铝业股份有限公司 | Method for manufacturing toughening ceramic ring of zirconium oxide for valve |
| CN101407410A (en) * | 2008-11-11 | 2009-04-15 | 中国铝业股份有限公司 | Method of preparing alumina ceramic prilling powder for sealed ring |
| CN101747026A (en) * | 2009-12-18 | 2010-06-23 | 中国铝业股份有限公司 | Preparation method of special aluminium oxide ceramics for sealing ring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396094A (en) * | 2013-08-07 | 2013-11-20 | 陈永定 | Special clay and manufacturing method thereof |
| CN104788083A (en) * | 2015-04-09 | 2015-07-22 | 景德镇晶达新材料有限公司 | Alumina ceramic ring having high thermal shock resistance and used for polycrystalline silicon reduction furnace as well as preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102491736B (en) | 2013-03-20 |
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Effective date of registration: 20180622 Address after: No. 22, Shanghai Street District, front road, 450041 Zhengzhou, Henan Co-patentee after: Aluminum Corporation of China Limited Patentee after: Chalco Mining Co., Ltd. Address before: 100082 Xizhimen North Street, Haidian District, Haidian District, Beijing Patentee before: Aluminum Corporation of China Limited |
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