CN106145969A - Composition of ceramic powders, straight-bore ceramic filter and preparation method thereof - Google Patents
Composition of ceramic powders, straight-bore ceramic filter and preparation method thereof Download PDFInfo
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- CN106145969A CN106145969A CN201610523953.5A CN201610523953A CN106145969A CN 106145969 A CN106145969 A CN 106145969A CN 201610523953 A CN201610523953 A CN 201610523953A CN 106145969 A CN106145969 A CN 106145969A
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- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2093—Ceramic foam
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- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0003—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof containing continuous channels, e.g. of the "dead-end" type or obtained by pushing bars in the green ceramic product
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- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
Abstract
The present invention provides a kind of straight-bore ceramic filter for filtering high melting point molten metal, it is characterized in that, mainly comprise SiC50 98%, Al2O31 23%, SiO21 28%, the present invention relates to the composition of ceramic powders for preparing this straight-bore ceramic filter, its weight percentage mainly by 55～the aluminium oxide of the carborundum of 98%, 1～23% and 1～28% silicon dioxide form, preferably by 60～80% carborundum, 10～the salic material of 20% and 10～the earth silicon material composition of 20%.According to the straight hole filter that the present invention obtains, there is less bulk density, lower sintering temperature and higher filtration yield.
Description
Technical field
The present invention relates to casting technology field, particularly relate to a kind of ceramic foam filter and prepare its compositions and system
Preparation Method.
Background technology
The mechanical property to improving foundry goods that purifies of molten metal plays an important role, and therefore, filtering technique is clean at molten metal
Change aspect is particularly important.The defecator being currently used for molten metal purification is ceramic filter, can effectively intercept and capture in molten metal
Objectionable impurities also makes molten metal be become laminar flow from turbulent flow, plays purification and homogenizing effect.Ceramic filter can be divided into according to structure
Ceramic foam filter and straight-bore ceramic filter.The current filter for cast steel is entirely ceramic foam filter, and
And the preparation almost all being used for the foam filter of cast steel depends on zirconium oxide.Owing to zirconium oxide is a kind of rare metal oxidation
Thing, although good filtration effect, but fancy price seriously limits its extensive application in cast steel filtration art, is only intended to spy
Plant steel or the steel of high added value or the casting of alloy.
Straight-bore ceramic filter is the new ceramics filter developed in recent years, has that outward appearance regularity is good, cold and hot
The features such as intensity is high, thermal shock resistance is good, strainability is good, production cost is relatively low.Current straight-bore ceramic filter mainly should
Contaminant filter for low-melting-point metal liquid such as molten iron, aluminium alloy, copper and alloys thereof.
The previous a patent application publication CN103964862A of applicant discloses a kind of cast steel with comprising biomass carbon
Straight-bore ceramic filter, prepares raw material and is made up of refractory material, biological carbon, organic bond and/or inorganic bond.This filtration
The serviceability of device also needs to improve further.
CN 103803990 A describes a kind of cast steel and high temperature alloy straight hole filter, comprises the three of 65～85%
Al 2 O, 11～the silicon dioxide of 33%, 1～the magnesium oxide of 3% and otheralkali metal oxide less than 1.5%, phase
Consist of: mullite mutually 40～90%, corundum mutually 5～55%, quartz≤8%, glass phase≤5%, mainly filter molten steel or
Person's high temperature alloy molten metal.CN 104557061 A describes a kind of cast steel and high temperature alloy straight hole filter, comprises 60
～the aluminium sesquioxide of 80%, 10～the silicon dioxide of 25%, 5～the zirconium oxide of 15%, and the otheralkali metal less than 1%
Oxide, mainly filters molten steel or high temperature alloy molten metal.CN 102992781 A discloses one and prepares straight hole pottery
The material of porcelain filter and method.Preparation method is to use ceramic honey comb forming technique, including by refractory material and binding agent, guarantor
Water preparation adds plasticizer after being sufficiently mixed, lubricant and water are mediated, the most experienced, old, concise, molding, shape, be dried, cut, blow
Ash, firing process prepare straight-bore ceramic filter.The filter using these materials to obtain has higher bulk density, generally
At 2.0g/cm3Stablizing under the above guarantee condition of high temperature is the most damaged, and owing to its bulk density is relatively big, its thermal capacity is the most very
Greatly, at the casting initial stage, molten metal is very easy to blocking to be caused filtering unsuccessfully；Use sintering temperature during this material system the biggest
In 1400 DEG C, energy consumption is higher.It addition, sintering temperature height causes goods sintering shrinkage big, product easily cracks when sintering,
Yield rate is low.
Therefore, prior art needs a kind of have relatively low bulk density, a less porosity, lower sintering temperature, permissible
The straight-bore ceramic filter of filtering high temperature molten metal.
Summary of the invention
It is an object of the invention to provide a kind of straight-bore ceramic filter being suitable to filtering high melting point molten metal, this filter
There is less bulk density, lower sintering temperature, higher yield rate, higher cast temperature and higher filtration yield.
According to the filter of the present invention, mainly comprise following component:
SiC 50-98%
Al2O3 1-23%
SiO2 1-28%.
In a preferred embodiment, its refractory material weight percentage is mainly by 55～the carbonization of 98%
The salic material of silicon, 1～23% and 1～22% silicon dioxide composition.
In a kind of detailed description of the invention, its refractory material weight percentage by 60～80% carborundum, 10～
The salic material of 20% and 10～20% silicon dioxide composition.
Further, above-mentioned salic material includes alumina powder, Alumina, flint clay, mullite, andalusite, aquamaine
One or more in stone, sillimanite.Further, containing the boron-containing compound less than 1% in above-mentioned refractory material.
Further, one or more included containing boron substance in pure boron, boron oxide, boron carbide, boron nitride above-mentioned, enter
One step ground, possibly together with the rare earth oxide less than 5%.
Further, the binding agent that the filter of the present invention is used is inorganic binder and/or organic binder bond, inorganic
Binding agent is one or more in Ludox, Alumina gel, waterglass, phosphate, sulfate, and organic binder bond is resin, drip
One in green grass or young crops, CMC, MC, PVA, PVB, starch, dextrin, spent pulping liquor, cellulose, arabic gum, xanthan gum, lignin or
Multiple.
The straight-bore ceramic filter of the present invention, its advantage is that bulk density is little, and thermal capacity is little, and the filtration initial stage is not easy to be hindered
Plug, the cost of raw material is low, and sintering temperature is low, and sintering shrinkage is little, and yield rate is high, and unit are filtration yield is big, and prior art is general
Filtration yield≤3kg/cm2, the technical scheme filtration yield that the present invention provides is not less than 5kg/cm2。
Another aspect of the present invention also provides for a kind of ceramic powders, and its weight percentage is mainly by 55～98%
The salic material of carborundum, 1～23% and 1～22% silicon dioxide composition.
Further, above-mentioned ceramic powders by 60～80% carborundum, 10～the salic material of 20% and 10～
The silicon dioxide composition of 20%.
Further, in above-mentioned ceramic powders containing less than 1% containing boron substance.
Further, containing the rare earth oxide less than 5% in above-mentioned ceramic powders.
Further, one or more included containing boron substance in pure boron, boron oxide, boron carbide, boron nitride above-mentioned.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below by specific embodiment, the present invention is further detailed explanation.
Detailed description of the invention
Heretofore described " high-melting-point " refer to temperature in 1550-1700 DEG C of interval, especially in 1600-1700 DEG C of district
Between fusing point.It should be readily understood, however, that can of course be used for fusing point metal below 1550 DEG C according to the product of the present invention.Root
Following component is mainly comprised according to the straight-bore ceramic filter of the present invention:
SiC 50-98%
Al2O31-23%
SiO21-28%.
Having the ceramic filter of above-mentioned composition, body density is less, thus has relatively low thermal capacity；Height can also be tolerated
Reach 1650 DEG C or even the molten metal of 1700 DEG C.
In a kind of detailed description of the invention, for preparing the ceramic material of straight hole filter of the present invention mainly by 55～98%
Carborundum, 1～the salic material of 23% and 1～22% silicon dioxide composition.Salic material in the present invention
Refer to the main natural material with aluminium oxide as composition and synthetic material.The example of natural material has Alumina.Synthetic
The example of material has alumina powder, can be various crystal formation, such as γ-Al2O3、β-Al2O3、α-Al2O3Or the knot of each crystal formation
Compound.In a kind of exemplary embodiment, this salic material is the natural ore as main component with aluminium oxide and silicon oxide
Thing, this material amount containing other metal-oxides (oxides of ferrum, titanium, potassium, sodium, calcium etc.) is preferably more than 10%, more preferably
Less than 5%, most preferably not more than 3%, other metallic element wherein contained is more preferably no more than 1%.In this natural minerals,
The amount of aluminium oxide is not suitable for, less than 30%, being preferentially not less than 35%, more preferably higher than more than 40%.This salic material is excellent
Choosing is the one in Alumina, flint clay, mullite, andalusite, kyanite, sillimanite or its combination.In the present invention, silicon dioxide
Can be the silicon dioxide of crystalline state and amorphous state, be crushed to below 300 mesh during use, below preferably 500 mesh, wherein
Most preferably silicon powder, it is by natural quartz (SiO2) or vitreous silica (natural quartz through high-temperature fusion, cooling after non-
Crystalline state SiO2) form through the multiple tracks processes such as broken, ball milling (or vibration, airflow milling), flotation, pickling purification.In addition,
Using simple substance silica flour also possible, it can be oxidized to silicon dioxide in sintering process.
In a kind of exemplary embodiment, in this ceramic material possibly together with less than 1% containing boron substance, this contains boron substance
Preferably one or more in pure boron, boron oxide, boron carbide, boron nitride.Contain boron substance by adding this, can promote to burn
Become, make filter have higher compactness, strengthen its room temperature and high-temperature behavior, increase the filtration yield of molten metal and improve filtration temperature
Degree, it is highly preferred that possibly together with the rare earth oxide less than 5%, typically yittrium oxide.Introduce yittrium oxide and containing boron substance
After, further increase the temperature of filtering metal solution, improve filtration yield simultaneously.Use the raw material of above-mentioned composition, the mistake of gained
Filter had both had relatively low bulk density, thus had relatively low thermal capacity；It addition, filter also has not higher than 1400 DEG C
Sintering temperature, thus significantly reduce energy consumption.
In a preferred embodiment, its refractory material by weight mainly by 60～80% carborundum, 10～20%
Above-mentioned salic material and 10～20% silicon dioxide composition.In a particular embodiment, this refractory material comprise 61%,
62%, 63 or even the carborundum of more than 65%.Using this optimization formula, ceramic material has relatively low sintering shrinkage, thus
Product burns till rate and improves.
A kind of method of the straight hole filter of the preparation present invention includes molding and two steps of sintering.A kind of molding mode is
Dry-pressing formed, main raw material(s), water, binding agent mixed pulp, after spray drying, form spherical particle material, after compression molding
To green compact, it is then passed through sintering and obtains goods.In this embodiment, binding agent is preferably with organic binder bond, organic adhesive
Agent usually Hydrocarbon is the Organic substance of main composition, by linear organic molecule composition spatial networks frame after chemical reaction
The three-dimensional polymeric molecule of structure.Various materials can be stuck together into an entirety, intensity is the highest.But the most easily decompose mistake
Debanding power.Organic binder bond for the present invention is generally selected from resin, Colophonium, polyvinyl alcohol, methylcellulose, PVB, shallow lake
One or more in powder, dextrin, spent pulping liquor, cellulose, arabic gum, xanthan gum, lignin.Promulgated by the State Council in can using
The die press technology for forming disclosed in bright patent 200810182753.3 prepares the filter of the present invention, prepares in raw material and can also wrap
Containing appropriate water reducer and releasing agent etc..Water reducer is the one in sodium humate, sodium tripolyphosphate, sodium hexameta phosphate or many
Kind；Binding agent is one or more in polyvinyl alcohol, methylcellulose；Releasing agent is hard hydrochlorate, oil emulsion, emulsified wax
In one or more.
Another molding mode be main raw material(s) and binding agent, water-retaining agent are sufficiently mixed after add plasticizer, profit
Lubrication prescription and water mediates, the most experienced, old, concise, molding, shape, be dried, cut, obtain green compact after soot blowing.It is for instance possible to use
The ceramic honey comb extruding-out process that Chinese invention patent application 201110271813.0 discloses prepares the filter of the present invention, system
Standby raw material should also contain appropriate binding agent, plasticizer, lubricant etc..Available binding agent include resin, cellulose, I
One or more in primary glue, xanthan gum, hydroxypropyl methyl cellulose, methylcellulose or Oleum Verniciae fordii, but the invention is not restricted to
This, the introduction volume of binding agent is usually between the 1%-11% of raw material；Conventional water-retaining agent include the one in glycerol, paraffin or
The combination of two kinds, addition is 3-11%, and conventional plasticizer includes the one in PVA, Oleum Verniciae fordii, soybean oil, hydraulic oil or many
Kind, but the invention is not restricted to this, addition is usually the 3%-8% of raw material；Conventional lubricant include soybean oil, vegetable oil,
One or more in hydraulic oil, but the invention is not restricted to this, and introduction volume is 3%-8%.In order to prepare the product of the present invention,
According to known method, each mineral are sieved by required requirement ball milling respectively, then by certain predetermined ratio and appropriate binding agent
Dispensing, after batch mixing, the water adding moderate lubrication agent and 14%-22% is mediated.Pug after kneading through the most experienced, old,
Concise, molding, the sizing of box microwave, box drying room circulation warming air-dry dry, cutting, soot blowing, obtain green compact.
In the present invention, base substrate thickness 8-25mm, preferred thickness 10-22mm.Base substrate after molding is piled up at high temperature kiln
In stove, below 1400 DEG C at a temperature of fire, preferably firing temperature is 1250-1400 DEG C
By the formula of the present invention, it is possible to obtain body density is at 0.9-1.8g/cm3High temperature with molten metal straight hole filter
Device, and filtration yield reaches even greater than 5kg/cm2, it is significantly higher than other filters.
Embodiment 1-7
Raw material (by weight): carborundum 68%, alumina powder 15%, silicon powder 17%
Use the combination of raw materials of above-mentioned content, add binding agent and the water of 40%, the ball milling of raw material total amount 0.5%
Preparing plastic refractory after 0.5 hour, by the mode of press atomization plastic refractory be atomized and be dried, baking temperature, at 105 DEG C, is done
Prepare the mesh number spherical powder of class at 30～100 mesh after dry, add in porous mold after weighing according to quantity, use pressure forming machine pressure
The demoulding processed, under 1300 DEG C of oxidizing atmosphere, sintering prepares straight hole filter after drying.
Embodiment 8-13
Main raw material(s) ball milling respectively is sieved the resin with 3% and 2% Oleum Verniciae fordii, and 5% glycerol adds after being sufficiently mixed
CMC3%, soybean oil 1%, hydraulic oil 3%, 15% water and other additives through mediating, slightly the most experienced, old, concise, molding, sizing,
It is dried, cutting, obtains green compact after soot blowing.Filter is obtained at a certain temperature after sintering.Test this filter, pressure head 30cm.
Applicant states, the present invention illustrates the detailed process flow of the present invention by above-described embodiment, but the present invention is also
It is not limited to above-mentioned detailed process flow, does not i.e. mean that the present invention has to rely on above-mentioned detailed process flow and could implement.Institute
Belonging to those skilled in the art it will be clearly understood that any improvement in the present invention, the equivalence of raw material each to product of the present invention is replaced
And the interpolation of auxiliary element, concrete way choice etc., within the scope of all falling within protection scope of the present invention and disclosure.
Claims (10)
1. the straight-bore ceramic filter for filtering high melting point molten metal, it is characterised in that mainly comprise with
Lower composition:
SiC 50-98%
Al2O31-23%
SiO21-28%.
Straight-bore ceramic filter the most according to claim 1, it is characterised in that its refractory material weight percentage
Mainly by 55～the carborundum of 98%, 1～the salic material of 23% and 1～the silicon dioxide composition of 22%, mainly
By 60～80% carborundum, 10～the salic material of 20% and 10～the silicon dioxide composition of 20%.
Straight-bore ceramic filter the most according to claim 2, it is characterised in that described salic material includes aluminium oxide
One or more in powder, Alumina, flint clay, mullite, andalusite, kyanite, sillimanite, described silicon dioxide is preferably without fixed
Shape silicon dioxide, more preferably silicon powder or formed by simple substance silica flour, or the combination of the two.
Straight-bore ceramic filter the most according to claim 2, it is characterised in that possibly together with less than 1% containing boron substance,
It is preferably one or more in pure boron, boron oxide, boron carbide, boron nitride.
Straight-bore ceramic filter the most according to claim 4, it is characterised in that possibly together with the rare-earth oxidation less than 5%
Thing, preferential oxidation yttrium.
6. a composition of ceramic powders, by weight mainly by 55～the carborundum of 98%, 1～the salic material of 23%
With 1～the silicon dioxide composition of 22%, preferably mainly by 60～80% carborundum, 10～the salic material of 20% and 10～
The silicon dioxide composition of 20%.
Composition of ceramic powders the most according to claim 6, it is characterised in that described salic material includes aluminium oxide
One or more in powder, Alumina, flint clay, mullite, andalusite, kyanite, sillimanite, described silicon dioxide is preferably without fixed
The silicon dioxide of form, wherein, the preferred silicon powder of described amorphous silica or formed by simple substance silica flour, or the knot of the two
Close.
Composition of ceramic powders the most according to claim 6, it is characterised in that possibly together with less than 1% containing boron substance,
One or more being preferably in pure boron, boron oxide, boron carbide, boron nitride containing boron substance described, preferably possibly together with being less than
The rare earth oxide of 5%, described rare earth oxide is preferably yittrium oxide.
9. according to the preparation method of the straight-bore ceramic filter described in any one of claim 1 to 5, wherein, by described ceramics
Powder composition, water, binding agent mixed pulp, form spherical particle material after spray drying, compression molding obtains green compact, then sinters
Obtaining goods, prepare and the most also comprise appropriate water reducer and releasing agent in raw material, water reducer is preferably sodium humate, trimerization phosphorus
One or more in acid sodium, sodium hexameta phosphate, binding agent is preferably one or more in polyvinyl alcohol, methylcellulose,
Releasing agent is preferably one or more in hard hydrochlorate, oil emulsion, emulsified wax, and wherein, the temperature of described sintering is preferably controlled
System is below 1400 DEG C.
10. according to the preparation method of the straight-bore ceramic filter described in any one of claim 1 to 5, wherein, by described ceramics
Powder composition adds plasticizer after being sufficiently mixed with binding agent, water-retaining agent, lubricant and water are mediated, the most experienced, old, concise, become
Type, shaping, be dried, cut, obtain green compact after soot blowing, then sintering obtains goods, and wherein, the temperature of described sintering preferably controls
Below 1400 DEG C.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610523953.5A CN106145969A (en) | 2016-07-04 | 2016-07-04 | Composition of ceramic powders, straight-bore ceramic filter and preparation method thereof |
| PCT/CN2017/094681 WO2018006885A1 (en) | 2016-07-04 | 2017-07-27 | Ceramic powder composition, straight hole ceramic filter and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610523953.5A CN106145969A (en) | 2016-07-04 | 2016-07-04 | Composition of ceramic powders, straight-bore ceramic filter and preparation method thereof |
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| CN106145969A true CN106145969A (en) | 2016-11-23 |
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| WO (1) | WO2018006885A1 (en) |
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| WO2018006885A1 (en) * | 2016-07-04 | 2018-01-11 | 济南圣泉倍进陶瓷过滤器有限公司 | Ceramic powder composition, straight hole ceramic filter and preparation method therefor |
| CN108569909A (en) * | 2017-02-23 | 2018-09-25 | 电化物产株式会社 | Filter and its manufacturing method for aluminum melt |
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| CN111214896A (en) * | 2019-11-06 | 2020-06-02 | 王海江 | Forming method for producing molten metal filter |
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| CN113149698A (en) * | 2021-04-25 | 2021-07-23 | 东南大学 | Magnesium oxide ceramic core with good dissolution collapsibility and preparation method thereof |
| CN113354428A (en) * | 2021-07-13 | 2021-09-07 | 江苏徐耐新材料科技股份有限公司 | Erosion-resistant fused zirconia-corundum brick for glass kiln and preparation method thereof |
| CN114804833A (en) * | 2021-01-27 | 2022-07-29 | 深圳麦克韦尔科技有限公司 | Ceramic substrate and preparation method thereof, ceramic heating element and electronic atomization device |
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| CN108751999A (en) * | 2018-07-05 | 2018-11-06 | 蚌埠威尔特滤清器有限公司 | A kind of honeycomb ceramic carrier and preparation method thereof |
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| CN113149698A (en) * | 2021-04-25 | 2021-07-23 | 东南大学 | Magnesium oxide ceramic core with good dissolution collapsibility and preparation method thereof |
| CN113354428A (en) * | 2021-07-13 | 2021-09-07 | 江苏徐耐新材料科技股份有限公司 | Erosion-resistant fused zirconia-corundum brick for glass kiln and preparation method thereof |
| CN113354428B (en) * | 2021-07-13 | 2022-03-01 | 江苏徐耐新材料科技股份有限公司 | Erosion-resistant fused zirconia-corundum brick for glass kiln and preparation method thereof |
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