CN1054361C - Foamed ceramic filter and its manufacture - Google Patents
Foamed ceramic filter and its manufacture Download PDFInfo
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- CN1054361C CN1054361C CN92102883A CN92102883A CN1054361C CN 1054361 C CN1054361 C CN 1054361C CN 92102883 A CN92102883 A CN 92102883A CN 92102883 A CN92102883 A CN 92102883A CN 1054361 C CN1054361 C CN 1054361C
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- Prior art keywords
- mixture
- strainer
- organic
- cavernous body
- porosity
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000000919 ceramic Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims description 45
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 239000012670 alkaline solution Substances 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 7
- 229920002472 Starch Polymers 0.000 claims description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 7
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000006424 Flood reaction Methods 0.000 claims description 5
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 7
- 238000001914 filtration Methods 0.000 abstract description 5
- 229910001338 liquidmetal Inorganic materials 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 2
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 2
- 239000003870 refractory metal Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 4
- 229910052593 corundum Inorganic materials 0.000 abstract 4
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 4
- 229910052681 coesite Inorganic materials 0.000 abstract 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract 3
- 239000000377 silicon dioxide Substances 0.000 abstract 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract 3
- 229910052682 stishovite Inorganic materials 0.000 abstract 3
- 229910052905 tridymite Inorganic materials 0.000 abstract 3
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 13
- 239000006260 foam Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 8
- 238000005245 sintering Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0087—Uses not provided for elsewhere in C04B2111/00 for metallurgical applications
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Filtering Materials (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The present invention relates to a foamed ceramic filter and a manufacture method thereof. The foamed ceramic filter is made of spumous or porous ceramic materials of which the opening porosity at the facade is from 70 to 85%. The ceramic material is prepared from one group of 60 to 80 wt% of Al2O3 and 20 to 40 wt% of SiO2, or 90 to 98 wt% of Al2O3 and 2 to 10 wt% of SiO2, or 70 to 80 wt% of Al2O3, 5 to 10 wt% of SiO2 and 15 to 20 wt% of ZrO2, or 15 to 30 wt% of Al2O3 and 70 to 85 wt% of ZrO2. The present invention can be used for filtering high-melting point liquid metal, steel alloy, cast iron and refractory metal or alloy.
Description
The present invention relates to strainer and the manufacture method thereof made with spumescence or vesicular stupalith.This strainer can be used for filtering liquid metal, especially for filtering high melting point metal, steel alloy, cast iron and refractory metal alloy.
In the Metal Melting field, a kind of strainer made from spumescence or vesicular foam ceramic material occurred in recent years, be used for removing the inclusion of metallic solution, so that improve the quality of foundry goods at casting cycle.
Chinese patent 87101800.4 discloses a kind of bubble-like ceramic material strainer and preparation technology and using method of filtering liquid metal.This foam ceramic material contains (weight percent): Al
2O
350～60%, SiO
210～20% and ZrO
220～40%.Its sintering temperature is 1650～1750 ℃.
Because strainer is to work in hot environment, this means that it not only will have the refractoriness that is higher than the molten point of metal, but also enough high temperature compression strengths and high temperature resistant ballistic ability should be arranged, simultaneously, because of strainer is in the extremely short time, by metallic solution it is heated to the temperature that approaches metallic solution from normal temperature,, promptly under the rapid heat cycle operating mode, did not lose efficacy so require it to have good heat-shock resistance again.
The weak point of above-mentioned patent is: 1, high temperature compression strength and shock resistance are not good enough; 2, during the open porosity when foam carrier lower (being lower than 50%), can not produce the desired open porosity of strainer.
First purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, and provide a kind of foamed ceramic filter and manufacture method thereof, it can not only be worked under the temperature about 1800 ℃, but also has good high-temperature ultimate compression strength, high temperature resistant impact and heat-shock resistance.
Second purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, and provide a kind of foamed ceramic filter and manufacture method thereof, it can produce the higher foamed ceramic filter of open porosity under the lower situation of foam carrier open porosity.
The 3rd purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, and a kind of foamed ceramic filter and manufacture method thereof are provided, and it has good sintering and comprehensive physicals, reduces sintering temperature and manufacturing cost simultaneously.
The technical solution that realizes the object of the invention is: a kind of foamed ceramic filter is characterized in that its front openings porosity is that 70～85% described stupaliths are by (weight percent) Al
2O
360～80%, SiO
220～40%, perhaps Al
2O
390～98%, SiO
22～10%, perhaps Al
2O
370～80%, SiO
25～10%, ZrO
215～20%, perhaps Al
2O
315～30%, ZrO
2At least and at the most one group of composition in 70～85%.
The method of making above-mentioned foamed ceramic filter is:
A produces mixture, and its weight percent is Al
2O
3/ SiO
2=60～80/20～40, or Al
2O
3/ SiO
2=90～98/2～10, or Al
2O
3/ SiO
2/ ZrO
2=70～80/5～10/15～20, or Al
2O
3/ ZrO
2=15～30/70～85, respectively adding (per-cent that accounts for the mixture total weight amount) Y in this mixture
2O
31～5%, a kind of in wilkinite 2～5%, carboxymethyl cellulose 1～3% and phosphoric acid 3～6% or the α starch 1～2%,
B adds water 25～35% by the per-cent of the described mixture total weight amount of preceding article respectively and evenly stirs into slurry,
C is that organic cavernous body of 70～85% is immersed in the above-mentioned arbitrary group of mixture paste with the front openings porosity, extrudes redundant sizing agent subsequently,
D will be stained with blank heating to 200～300 ℃ of mixture paste,
E makes blank sintering-curing under 1500～1650 ℃ of temperature,
F is at sintering---before or after the curing, and the strainer that the spumescence that will make with aforesaid method or vesicular stupalith are processed into desired shape.
And, before organic cavernous body be impregnated in mixture paste, earlier open porosity is lower than organic cavernous body of 70% and is placed in 90～100 ℃ of alkaline solutions of 30～40% and floods, remove alkaline solution with the clear water rinsing then, remove its water again.
Can realize purpose of the present invention by the strainer that above-mentioned chemical constitution and method are made.Selecting of its chemical constitution depends primarily under the prerequisite that satisfies the strainer working condition requirement, reduces manufacturing cost as much as possible.Generally speaking, along with Al in each component
2O
3Increase, refractoriness also is improved thereupon, but works as Al
2O
3Content descend to some extent again greater than 90% o'clock thermal shock resistance; SiO
2Though resistance to elevated temperatures not as good as Al
2O
3, but add an amount of SiO
2Can refinement stupalith crystalline structure, improve sintering-curing performance, it is a part and Al when high temperature
2O
3Reaction generates the netted mullite crystal of pin, thereby plays the effect that improves physical strength and chemical stability; ZrO
2The high temperature physicochemical property be better than Al
2O
3, add or suitably strengthen its content and can under the ultrahigh-temperature operating mode, show good physicochemical performance; In order to improve sintering character, improve the comprehensive physicals of strainer, can add an amount of Y by above-mentioned scope
2O
3, can reduce the sintering-solidification value of strainer self like this and (especially work as Al
2O
3When content is higher), play the effect that reduces manufacturing cost; The purpose that adds wilkinite, carboxymethyl cellulose and phosphoric acid (or α starch) is in preparation → sintering curing process, guarantees that mixture paste and even blank all have good cohesive action under normal temperature, the middle gentle condition of high temperature.
Guarantee that foam ceramic material has aforesaid open porosity, can be related to strainer tackle when work effectively, catch the inclusion in the metallic solution, and make the rectification of mobile solution, vortex washing away during with reduction solution flow at high speed to casting mold and core, by above-mentioned preparation method as can be known, the open porosity of foam ceramic material depends on organic cavernous body, as: the open porosity of polyurethane foam plastic, and the open porosity of this polyurethane foam plastic is generally less than 50%, especially the cheaper polyurethane foam plastic of present homemade price, at it by filament in the three-dimensional at random foams of structuring the formation, " hole " that have between its filament is actually thin film, if with this carrier as the dip compound slurry, then the foamed ceramic body that goes out of sintering is obstructed entity at the film place of correspondence.Therefore, when using the lower porous plastics of open porosity to make carrier, it be impregnated in earlier in 90～100 ℃ of alkaline solutions of 30～40%, just can scald effectively and remove the film between filament and do not injure the filament that intensity is higher than film again, thereby produce the higher ceramic foam filter of open porosity with the lower foam carrier of open porosity.
The best proportioning of making the stupalith of strainer is by (weight percent) Al
2O
375～78%, SiO
221～24%, perhaps Al
2O
395～96%, SiO
23～4%, perhaps Al
2O
374～76%, SiO
27～8%, ZrO
215～17%, perhaps Al
2O
320～25%, ZrO
2At least and at the most one group of composition in 74～79%, each is organized in the chemical constitution, and impurity generally is not more than 1%.
Strainer by technical scheme manufacturing of the present invention, through checking its refractoriness to be: 1650～1800 ℃ of (test basis: 01N51730), normal temperature ultimate compression strength is 2.0～6.5MPa (test basis: GB1448-83), high temperature (1000 ℃) ultimate compression strength is: 1～3MPa, heat-shock resistance (rapid heat cycle between 20～1000 ℃ changes); Be no less than 30 times, the front openings porosity is: 70～85%.Every strainer (standard type; 100 * 100 * 22mm
3) manufacturing cost be 1/3rd of prior art.Use in addition and show through reality: this strainer effectively in the filtering metallic solution size be inclusion more than the 5 μ m.
The invention will be further described below with reference to embodiment:
Composition is weight percentage in following each embodiment mixture.The granularity of mixture powder is 200～320 orders.
Embodiment 1 Al
2O
360%, SiO
239.5%, all the other are impurity.
Embodiment 2 Al
2O
369.5%, SiO
230%, all the other are impurity.
Embodiment 3 Al
2O
379.5%, SiO
220%, all the other are impurity.
Gross weight by said mixture adds Y
2O
31～5%, wilkinite 2～5%, carboxymethyl cellulose 1～3% and phosphoric acid 3～6% (or α starch 1～2%);
Add water 25～35% by the gross weight of said mixture and evenly stir into slurry;
With the front openings porosity is that organic cavernous body of 70～85% is immersed in the above-mentioned arbitrary group of mixture paste, extrudes redundant sizing agent subsequently;
To be stained with blank heating to 200～300 ℃ of slurry with infrared heating oven, make the foam carrier gasification, i.e. blank typing;
1500～1650 ℃ of sintering temperatures 1～6 hour, blank is solidified;
Spumescence or vesicular stupalith are processed into the strainer of desired shape, as: square, rectangle, circle and conical.This operation also can be carried out before sintering-curing.
In addition, if the front openings porosity of organic cavernous body is lower than 70%, can be before organic cavernous body be impregnated in mixture paste, it was flooded 2～20 minutes in 90～100 ℃ of alkaline solutions of 30～40%, alkaline solution is removed in rinsing in clear water then, remove its water again, so that make organic cavernous body reach desired open porosity.
Performance of making that strainer had and characteristic (effect) are as described in the 6th part.
Embodiment 4 Al
2O
390%, SiO
29.6%, all the other are impurity.
Embodiment 5 Al
2O
394%, SiO
25.5%, all the other are impurity.
Embodiment 6 Al
2O
397.5%, SiO
22%, all the other are impurity.
Adopt as embodiment 1～3 described manufacture method simultaneously, strainer is obtained as described performance of the 6th part and characteristic.
Embodiment 7 Al
2O
370%, SiO
210%, ZrO
219.5%, all the other are impurity.
Embodiment 8 Al
2O
375%, SiO
27.5%, ZrO
217%, all the other are impurity.
Embodiment 9 Al
2O
379.5%, SiO
25%, ZrO
215%, all the other are impurity.
Adopt as embodiment 1～3 described manufacture method simultaneously, strainer is obtained as described performance of the 6th part and characteristic.
Embodiment 10 Al
2O
315%, ZrO
284.5%, all the other are impurity.
Embodiment 11 Al
2O
322%, ZrO
277.5%, all the other are impurity.
Embodiment 12 Al
2O
384.3%, ZrO
215.2%, all the other are impurity.
Adopt as embodiment 1～3 described manufacture method simultaneously, strainer is obtained as described performance of the 6th part and characteristic.
Claims (12)
1, a kind of foamed ceramic filter is characterized in that its front openings porosity is 70～85%, and described stupalith is by (weight percent) Al
2O
360～80%, SiO
220～40% form.
2, a kind of foamed ceramic filter is characterized in that its front openings porosity is 70～85%, and described stupalith is by (weight percent) Al
2O
390～98%, SiO
22～10% form.
3, a kind of foamed ceramic filter is characterized in that its front openings porosity is 70～85%, and described stupalith is by (weight percent) Al
2O
370～80%, SiO
25～10%, ZrO
215～20% form.
4, a kind of foamed ceramic filter is characterized in that its front openings porosity is 70～85%, and described stupalith is by (weight percent) Al
2O
315～30%, ZrO
270～85% form.
5, a kind of method of making the described strainer of claim 1 is characterized in that:
A, produce mixture, its weight percent is Al
2O
3/ SiO
2=60～80/20～40, in this mixture, add (per-cent that accounts for the mixture total weight amount) Y
2O
31～5%, a kind of in wilkinite 2～5%, carboxymethyl cellulose 1～3% and phosphoric acid 3～6% or the α starch 1～2%,
B adds water 25～35% by the per-cent of the described mixture total weight amount of preceding article respectively and evenly stirs into slurry,
C is that organic cavernous body of 70～85% is immersed in the above-mentioned arbitrary group of mixture paste with the front openings porosity, extrudes redundant sizing agent subsequently,
D will be stained with blank heating to 200～300 ℃ of mixture paste,
E makes blank sintering-curing under 1500～1650 ℃ of temperature,
F is at sintering---before or after the curing, and the strainer that the spumescence that will make with aforesaid method or vesicular stupalith are processed into desired shape.
6, the method for manufacturing strainer according to claim 5, organic cavernous body it is characterized in that: before be impregnated in mixture paste, earlier open porosity being lower than organic cavernous body of 70% is placed in 90～100 ℃ of alkaline solutions of 30～40% and floods, remove alkaline solution with the clear water rinsing then, remove its water again.
7, a kind of method of making the described strainer of claim 2 is characterized in that:
A, produce mixture, its weight percent is Al
2O
3/ SiO
2=90～98/2～10, in this mixture, add (per-cent that accounts for the mixture total weight amount) Y
2O
31～5%, a kind of in wilkinite 2～5%, carboxymethyl cellulose 1～3% and phosphoric acid 3～6% or the α starch 1～2%,
B adds water 25～35% by the per-cent of the described mixture total weight amount of preceding article respectively and evenly stirs into slurry,
C is that organic cavernous body of 70～85% is immersed in the above-mentioned arbitrary group of mixture paste with the front openings porosity, extrudes redundant sizing agent subsequently,
D will be stained with blank heating to 200～300 ℃ of mixture paste,
E makes blank sintering-curing under 1500～1650 ℃ of temperature,
F is at sintering---before or after the curing, and the strainer that the spumescence that will make with aforesaid method or vesicular stupalith are processed into desired shape.
8, the method for manufacturing strainer according to claim 7, organic cavernous body it is characterized in that: before be impregnated in mixture paste, earlier open porosity being lower than organic cavernous body of 70% is placed in 90～100 ℃ of alkaline solutions of 30～40% and floods, remove alkaline solution with the clear water rinsing then, remove its water again.
9, a kind of method of making the described strainer of claim 3 is characterized in that:
A, produce mixture, its weight percent is Al
2O
3/ SiO
2/ ZrO
2=70～80/5～10/15～20, in this mixture, add (per-cent that accounts for the mixture total weight amount) Y
2O
31～5%, a kind of in wilkinite 2～5%, carboxymethyl cellulose 1～3% and phosphoric acid 3～6% or the α starch 1～2%,
B adds water 25～35% by the per-cent of the described mixture total weight amount of preceding article respectively and evenly stirs into slurry,
C is that organic cavernous body of 70～85% is immersed in the above-mentioned arbitrary group of mixture paste with the front openings porosity, extrudes redundant sizing agent subsequently,
D will be stained with blank heating to 200～300 ℃ of mixture paste,
E makes blank sintering-curing under 1500～1650 ℃ of temperature,
F is at sintering---before or after the curing, and the strainer that the spumescence that will make with aforesaid method or vesicular stupalith are processed into desired shape.
10, the method for manufacturing strainer according to claim 9, organic cavernous body it is characterized in that: before be impregnated in mixture paste, earlier open porosity being lower than organic cavernous body of 70% is placed in 90～100 ℃ of alkaline solutions of 30～40% and floods, remove alkaline solution with the clear water rinsing then, remove its water again.
11, a kind of method of making the described strainer of claim 4 is characterized in that:
A, produce mixture, its weight percent is Al
2O
3/ ZrO
2=15～30/70～85, in this mixture, add (per-cent that accounts for the mixture total weight amount) Y
2O
31～5%, a kind of in wilkinite 2～5%, carboxymethyl cellulose 1～3% and phosphoric acid 3～6% or the α starch 1～2%,
B adds water 25～35% by the per-cent of the described mixture total weight amount of preceding article respectively and evenly stirs into slurry,
C is that organic cavernous body of 70～85% is immersed in the above-mentioned arbitrary group of mixture paste with the front openings porosity, extrudes redundant sizing agent subsequently,
D will be stained with blank heating to 200～300 ℃ of mixture paste,
E makes blank sintering-curing under 1500～1650 ℃ of temperature,
F is at sintering---before or after the curing, and the strainer that the spumescence that will make with aforesaid method or vesicular stupalith are processed into desired shape.
12, ten thousand methods of manufacturing strainer according to claim 11, organic cavernous body it is characterized in that: before be impregnated in mixture paste, earlier open porosity being lower than organic cavernous body of 70% is placed in 90～100 ℃ of alkaline solutions of 30～40% and floods, remove alkaline solution with the clear water rinsing then, remove its water again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92102883A CN1054361C (en) | 1992-04-18 | 1992-04-18 | Foamed ceramic filter and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92102883A CN1054361C (en) | 1992-04-18 | 1992-04-18 | Foamed ceramic filter and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1065260A CN1065260A (en) | 1992-10-14 |
| CN1054361C true CN1054361C (en) | 2000-07-12 |
Family
ID=4939907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92102883A Expired - Fee Related CN1054361C (en) | 1992-04-18 | 1992-04-18 | Foamed ceramic filter and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1054361C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186490B (en) * | 2007-12-07 | 2010-10-06 | 煤炭科学研究总院重庆研究院 | Porous inert material and application thereof in thermal conduction element |
| CN101659543B (en) * | 2009-09-11 | 2013-02-20 | 金建福 | Zirconium-contained compound sintered ultralight inorganic material and preparation method thereof |
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|---|---|---|---|---|
| CN1063410C (en) * | 1996-10-30 | 2001-03-21 | 大连理工大学 | Method of preparing foamed ceramic material by self-overgrowth high-temp. synthesis control |
| CN1063411C (en) * | 1996-10-30 | 2001-03-21 | 大连理工大学 | Method of preparing (ALxOx+Tibx) foamed ceramic filter by self-overgrowth high-temp. synthesis control |
| CN101328074B (en) * | 2007-06-22 | 2010-08-11 | 宝山钢铁股份有限公司 | Ceramic particle adhesive, preparation thereof and method for preparing ceramic particle using the same |
| CN103030419B (en) * | 2012-12-08 | 2014-10-08 | 佛山市简氏依立电器有限公司 | Preparation method of purple sand foamed water filtering ceramic |
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| CN110449035B (en) * | 2019-08-20 | 2022-05-10 | 广东工业大学 | Oil-water separation membrane and preparation method thereof |
| CN110746179A (en) * | 2019-11-18 | 2020-02-04 | 齐鲁工业大学 | A kind of alumina ceramic impregnated sucrose material with adjustable negative dielectric constant and preparation method thereof |
| DE102020127583A1 (en) * | 2020-10-20 | 2022-04-21 | Drache Umwelttechnik Gmbh | Foam ceramics, foam ceramic filters, methods for their production and their use |
| CN117142839B (en) * | 2023-08-30 | 2025-06-27 | 河南科技大学 | A composite material ceramic filter for metal casting and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102359A (en) * | 1985-04-01 | 1986-09-17 | 陕西机械学院 | Special foamy ceramic filter for casting production |
| CN87101800A (en) * | 1986-03-19 | 1987-10-14 | 陶瓷与复合材料公司 | The bubble-like ceramic material strainer of filtering liquid metal and preparation technology thereof and in order to the method for filtering high melting point liquid metal and alloy |
| CN1017607B (en) * | 1988-06-22 | 1992-07-29 | 帝国化学工业公司 | Metallized thin film and preparation method thereof |
-
1992
- 1992-04-18 CN CN92102883A patent/CN1054361C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102359A (en) * | 1985-04-01 | 1986-09-17 | 陕西机械学院 | Special foamy ceramic filter for casting production |
| CN87101800A (en) * | 1986-03-19 | 1987-10-14 | 陶瓷与复合材料公司 | The bubble-like ceramic material strainer of filtering liquid metal and preparation technology thereof and in order to the method for filtering high melting point liquid metal and alloy |
| CN1017607B (en) * | 1988-06-22 | 1992-07-29 | 帝国化学工业公司 | Metallized thin film and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186490B (en) * | 2007-12-07 | 2010-10-06 | 煤炭科学研究总院重庆研究院 | Porous inert material and application thereof in thermal conduction element |
| CN101659543B (en) * | 2009-09-11 | 2013-02-20 | 金建福 | Zirconium-contained compound sintered ultralight inorganic material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1065260A (en) | 1992-10-14 |
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