CN102503475A - Preparation method of tundish nozzle - Google Patents
Preparation method of tundish nozzle Download PDFInfo
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- CN102503475A CN102503475A CN2011103312834A CN201110331283A CN102503475A CN 102503475 A CN102503475 A CN 102503475A CN 2011103312834 A CN2011103312834 A CN 2011103312834A CN 201110331283 A CN201110331283 A CN 201110331283A CN 102503475 A CN102503475 A CN 102503475A
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Abstract
The invention relates to the field of inorganic non-metal materials, discloses a preparation method of a gelcasting tundish nozzle and particularly relates to a forming method during the preparation process of the tundish nozzle. The preparation method is characterized by comprising the steps of mixing raw materials, namely deionized water, organic monomers, a cross-linking agent and powder, and adding an initiator and a catalyst for realizing in-situ solidification forming. Compared with a traditional machine pressing forming method, the preparation method has the advantages of convenience in operation, low labor intensity and net forming, the formed product has a uniform organizational structure and the blank strength of the dried product is high and the blank quality of the product is improved greatly.
Description
Technical field
The present invention relates to field of inorganic nonmetallic material, especially relate to a kind of preparation method of middle water containing opening.
Background technology
The mouth of a river belongs to one of functional refractory, and the effect of control molten steel flow and flow velocity is arranged, and its performance can directly influence the continuous casting time.Therefore the mouth of a river will have good thermostability and resistance to fouling, and this has just determined mouth of a river goods to have void content low, the characteristics that density is high.
The zircon material is an acid material, has that refractoriness height, linear expansivity are low, a Heat stability is good, antiscour, erosion resistant characteristic, selects for use zirconium material to make the mouth of a river and has the very long life-span.Mechanical pressing is adopted at the domestic production mouth of a river more at present; A small amount of employing casting, but the mouth of a river of mechanical pressing is many because of the batch mixing inequality causes weave construction inconsistent, unstable product quality; Continuous casting is discontinuous to cause slab quality to descend and the labour costs rising; So, need select for use a kind of novel forming method to solve the uneven problem of batch mixing, to improve product quality stability.
Earlier 1990s, the gel casting forming technology has been invented by U.S. Oak Ridge National Key Laboratory, and this technology combines traditional slip-casting shaping process with the organic polymer chemofacies, utilizes the organic polymer reaction gel to solidify the purpose that reaches moulding.Its core is in the slurry of ceramic powder preparation, to add chemical reagent such as linking agent and monomer, mixes, and slurry is injected in the mould; Organic reagent in-situ polymerization in the slurry under certain condition; Form the colloid of three-dimensional structure, the powder anchored in place in colloid, is reached the moulding purpose.This forming method has the high advantage of blank strength after dead size moulding, the moulding, and this forming technique is used widely at present, in the special-shaped precise part of preparation, has brought into play very big effect.In existing relevant gel casting forming research; Adopt gel injection to prepare the process method of ceramic foam, ceramic liner liner; And the research that improves gel injection technology, do not find gel-casting method is applied to the research of middle water containing opening aspect.The attached gel molding process moulding mouth of a river, it is even to water the goods weave construction that outpours, and void content is low, and density is high, improves product life, and can reduce labour intensity, enhances productivity.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of middle water containing opening.
Technical scheme of the present invention is: utilize gel injection molding and forming technology to prepare the mouth of a river.This scheme selects for use the powder of certain particle size to do raw material, adopts wet moulding.Can make goods weave construction uniformity, void content low, density is high, and resistance to fouling is good, and each item performance can be further enhanced, and this forming method is simple to operate, is convenient to control.
A kind of preparation method of middle water containing opening; Deionized water, organic monomer, linking agent are configured to premixed liquid; Add zircon, monoclinic zirconia, quicklime PSZ, titanium oxide powder raw material then; And add dispersion agent, skimmer, and regulate PH to 9-10 with ammoniacal liquor, ball mill mixing makes and is uniformly dispersed, the suspended nitride of good fluidity; In suspended nitride, add initiator and catalyzer then, stir and carry out vacuum stripping and handle, pour in the forming mould, under certain temperature and humidity, make the pulp gel curing molding; Molding blank through dry, be fired into middle water containing opening.
A kind of preparation method of middle water containing opening utilizes gel to annotate the membrane method moulding.
A kind of preparation method of middle water containing opening, the organic monomer of selecting for use is one or both in acrylic amine, methylol acrylic amine, the methacrylic acid amino; How linking agent is methylene-bis acrylic amine, a kind of in two methylene glycol dimethacrylate amine, the polyoxyethylene glycol dimethacrylate fat; Initiator is ammonium persulphate or Potassium Persulphate; Catalyzer is a Tetramethyl Ethylene Diamine; Dispersion agent is a kind of in ROHM ammonia, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the ROHM; Skimmer is silicone antifoam agent or alcohol defoaming agent.
A kind of preparation method of middle water containing opening, described premixed liquid accounts for the 4%-20% of slurry total mass, and the mass ratio of deionized water, organic monomer, linking agent is 100:8-40:5-0.5 in the premixed liquid.
A kind of preparation method of middle water containing opening, the mass percent of described powder raw material is: zircon 40-85 ﹪, monoclinic zirconia 15-50 ﹪, quicklime PSZ 0-10 ﹪, titanium oxide 0-1 ﹪; Wherein, the mass percent of zircon powder is: 325 order zircon 66.7-100 ﹪, 600 order zircon 0-33.3 ﹪; The mass percent of monoclinic zirconia is: 325 order monoclinic zirconia 0-40 ﹪; 4000 order monoclinic zirconia 60-100 ﹪; Quicklime PSZ granularity is 325 orders, and the titanium oxide granularity is 4000 orders.
A kind of preparation method of middle water containing opening, dispersion agent, skimmer consumption are 1 ‰ of powder raw material quality-10 ‰, 0.1 ‰-10 ‰.
A kind of preparation method of middle water containing opening, initiator, catalyzer add-on are 0.1%-10.0%, the 0-2% of organic monomer quality.
A kind of preparation method of middle water containing opening, pulp gel curing molding TR is 55%-95% at 15-90 ℃, humidity.
A kind of preparation method of middle water containing opening, body drying envrionment temperature are that 15-100 ℃, humidity are 40%-95% RH.
A kind of preparation method of middle water containing opening, base substrate 1500-1650 ℃ of insulation in atmosphere furnace burnt till in 2-5 hour.
A kind of preparation method of middle water containing opening, concrete process step comprises:
The preparation slurry
(1): deionized water, organic monomer, linking agent are mixed with premixed liquid, deionized water, organic monomer and linking agent mass ratio 100:8-40:5-0.5;
(2): the mass percent of powder raw material is: zircon 40-85 ﹪, monoclinic zirconia 15-50 ﹪, quicklime PSZ 0-10 ﹪, titanium oxide 0-1 ﹪; Wherein, the mass percent of zircon powder is: 325 order zircon 66.7-100 ﹪, 600 order zircon 0-33.3 ﹪; The mass percent of monoclinic zirconia is: 325 order monoclinic zirconia 0-40 ﹪; 4000 order monoclinic zirconia 60-100 ﹪; Quicklime PSZ granularity is 325 orders, and the titanium oxide granularity is 4000 orders; Add dispersion agent and skimmer;
(3) described powder, dispersion agent, skimmer, premixed liquid are put into ball grinder; The premixed liquid quality accounts for the 4%-20% into made stock quality; With the zirconia ball is mill ball; Ball mill mixing 20-50 minute, with ammoniacal liquor slurry PH is transferred to 9-10 then after, be uniformly dispersed after ball milling 15-36 hour, stablized, the slurry of good fluidity;
Blank forming and drying: in the slurry of above-mentioned preparation, add initiator and catalyzer, stir; Slurry is carried out degasification vacuumize processing, be injected into then in the forming mould, 15-90 ℃, the curing of 55-95%RH scope inner gel; After sloughing mould, base substrate is put into climatic chamber carry out drying, TR is 15-100 ℃, and humidity is 40%-95% RH;
Burn till: sintering in electric furnace, in 300-800 ℃, remove organism, 1500-1650 ℃ of insulation 2-5 hour, obtain the middle water containing opening goods then.
Substantive distinguishing features of the present invention is:
1, slurry is even, the base substrate weave construction uniformity after the moulding, and the performance of goods can further improve.
2, these goods adopt fine powder and micro mist to form, and the billet surface after the moulding is smooth, and the goods after burning till are fine and close, and void content is low, and resistance to fouling is good.
3, this technological operation is simple, easy moulding special-shaped product, and labour intensity is low, and production efficiency improves.
Embodiment
Embodiment 1:
1.1, the preparation slurry: 54 gram acrylic amides, 3 gram N ' N-methylene-bisacrylamides are put into fill 350 gram deionized water beakers dissolvings and obtain premixed liquid, pour in the ball grinder; Take by weighing 1722.5 gram zircons (325 order), 265 gram quicklime PSZs (325 order), 662.5 gram monoclinic zirconias (4000 order), 25 gram titanium oxide, 20 gram dispersion agent ROHM ammonia and 5 gram skimmer n-Octanols respectively to going in the ball grinder; With the zirconia ball is mill ball; After the ball mill mixing 20 minutes; Add ammoniacal liquor and regulate 10 of slurry pH value, ball milling was processed slurry after 20 hours.
1.2, moulding and drying.In the slurry of step 1, add 2.0 gram initiator ammonium persulfates and 0.15 gram catalyzer Tetramethyl Ethylene Diamine more respectively, degasification vacuumizes processing and stirs to slurry.Be injected in the forming mould gel solidification moulding under 30 ℃, 80%RH humidity.Slough mould after solidifying and obtain base substrate, base substrate is put into climatic chamber, keep 25 ℃ of temperature, humidity 90% environment drying down.
1.3, burn till: the base substrate that drying is good 1600 ℃ of insulations in the electric furnace of oxidizing atmosphere were burnt till in 3 hours, obtained middle water containing opening.
Embodiment 2:
2.1, pulp preparation: 30 gram acrylic amides, 45 gram methylol acrylic amine, 7 gram N ' N-methylene-bisacrylamides are put into fill 250 gram deionized water beakers dissolvings and obtain premixed liquid, pour in the ball grinder; Take by weighing 1625 gram zircons (325 order), 125 gram monoclinic zirconias (325 order), 500 gram zirconium English powder (600 order), 250 gram monoclinic zirconias (4000 order), 25 gram ROHM ammonia and 4 gram skimmer n-Octanols respectively to going in the ball grinder; With the zirconia ball is among the mill ball ball mill mixing 30min; Add ammoniacal liquor and regulate 10 of slurry pH value; Behind the ball milling 36 hours, process slurry.
2.2, moulding and drying.In the slurry of step 1, add 3.2 gram initiator ammonium persulfate and 0.10 catalyzer Tetramethyl Ethylene Diamines more respectively, degasification vacuumizes processing and stirs to slurry.Be injected in the forming mould gel solidification moulding under 26 ℃, 95%RH humidity.Slough mould after solidifying and obtain base substrate, base substrate is put into climatic chamber, keep 25 ℃ of temperature, humidity 90% environment drying down.
2.3, burn till: the base substrate that drying is good 1650 ℃ of insulations in the electric furnace of oxidizing atmosphere were burnt till in 4 hours, obtained middle water containing opening.
Embodiment 3:
3.1, pulp preparation: 167.37 gram methacrylic acid aminos, 20.92 gram polyoxyethylene glycol dimethacrylate fat are put into fill 418.43 gram deionized water beakers dissolvings and obtain premixed liquid, pour in the ball grinder; Take by weighing 2040 gram zircons (325 order), 360 gram monoclinic zirconias (4000), 24.24 gram titanium oxide, 2.42 gram ROHM ammonia and 0.24 gram skimmer polyether siloxane copolymers respectively to going in the ball grinder; With the zirconia ball is mill ball; After among the ball mill mixing 20min; Add ammoniacal liquor and regulate 10 of slurry pH value, ball milling was processed slurry after 24 hours.
3.2, moulding and drying: in the slurry of step 1, add 16.73 gram initiator potassium persulfate and 3.34 gram catalyzer Tetramethyl Ethylene Diamines more respectively, degasification vacuumizes and handles and stir to slurry.Be injected in the forming mould gel solidification moulding under 15 ℃, 95%RH humidity.Slough mould after solidifying and obtain base substrate, base substrate is put into climatic chamber, keep 15 ℃ of temperature, humidity 90% environment drying down.
3.3, burn till: the base substrate that drying is good 1500 ℃ of insulations in the electric furnace of oxidizing atmosphere were burnt till in 5 hours, obtained the middle water containing opening goods.
Embodiment 4:
4.1, pulp preparation: 84 gram NMAs, 10 gram N ' N-methylene-bisacrylamides are put into fill 240 gram deionized water beakers dissolvings and obtain premixed liquid, pour in the ball grinder; Take by weighing 1000 gram zircons (325 order), 250 gram monoclinic zirconias (325 order), 100 gram quicklime PSZs (325 order), 150 gram zirconium English powder (600 order), 1000 gram monoclinic zirconias (4000 order), 25 gram titanium oxide, 43 gram ROHM ammonia and 8 gram skimmer dimethyl polysiloxanes respectively to going in the ball grinder; With the zirconia ball is mill ball; After among the ball mill mixing 30min, add ammoniacal liquor and regulate 10 of slurry pH value; Behind the ball milling 15 hours, process slurry.
4.2, moulding and drying: in the slurry of step 1, add 3.5 gram initiator ammonium persulfates and 0.15 gram catalyzer Tetramethyl Ethylene Diamine more respectively, degasification vacuumizes and handles and stir to slurry.Be injected in the forming mould gel solidification moulding under 30 ℃, 95%RH humidity.Slough mould after solidifying and obtain base substrate, base substrate is put into climatic chamber, keep 25 ℃ of temperature, humidity 90% environment drying down.
4.3, burn till: the base substrate that drying is good 1580 ℃ of insulations in the electric furnace of oxidizing atmosphere were burnt till in 3 hours, obtained the middle water containing opening goods.
Embodiment 5:
5.1, pulp preparation: 7.52 gram acrylic amides, 4.70 gram N ' N-methylene-bisacrylamides are put into fill 94.02 gram deionized water beakers dissolvings and obtain premixed liquid, pour in the ball grinder; 496 gram zircons (325 order), 248 gram monoclinic zirconias (325 order), 248 gram quicklime PSZs (325 order), 496 gram zirconium English powder (600 order), 992 gram monoclinic zirconias (4000 order), 20 gram titanium oxide, 25 gram ROHM ammonia and 25 gram skimmer n-Octanols are to going in the ball grinder; With the zirconia ball is mill ball; After among the ball mill mixing 30min; Add ammoniacal liquor and regulate 10 of slurry pH value, ball milling was processed slurry after 15 hours.
5.2, moulding and drying: in the slurry of step 1, add 0.75 gram initiator potassium persulfate and 0.15 gram catalyzer Tetramethyl Ethylene Diamine more respectively, degasification vacuumizes and handles and stir to slurry.Be injected in the forming mould gel solidification moulding under 15 ℃, 70%RH humidity.Slough mould after solidifying and obtain base substrate, base substrate is put into climatic chamber, keep 15 ℃ of temperature, humidity 40% environment drying down.
5.3, burn till: the base substrate that drying is good 1610 ℃ of insulations in the electric furnace of oxidizing atmosphere were burnt till in 2 hours, obtained the middle water containing opening goods.
Embodiment 6:
6.1, the preparation slurry: 51 gram acrylic amides, 10 methacrylic acid aminos, 1.65 gram N ' N-methylene-bisacrylamides are put into fill 330 gram deionized water beakers dissolvings and obtain premixed liquid, pour in the ball grinder; Take by weighing 1068 gram zircons (325 order), 186.9 gram monoclinic zirconias (325 order), 160.2 gram quicklime PSZs (325 order), 534 gram zirconium English powder (600 order), 720.9 gram monoclinic zirconias (4000 order), 13.35 gram titanium oxide, 13.42 gram pentasodium triphosphate of dispersing agent and 5 gram skimmer n-Octanols respectively to going in the ball grinder; With the zirconia ball is mill ball; After among the ball mill mixing 30min; Add ammoniacal liquor and regulate 10 of slurry pH value; Behind the ball milling 20 hours, process slurry.
6.2, moulding and drying.In slurry, add .5.2 gram initiator ammonium persulfate and 0.23 gram catalyzer Tetramethyl Ethylene Diamine, degasification vacuumizes processing and stirs to slurry.Be injected in the forming mould insulation 25min after fixing under 90 ℃, 84%RH humidity.Slough mould after solidifying and obtain base substrate, base substrate is put into climatic chamber, keep 100 ℃ of temperature, humidity 40% environment drying down.
6.3, burn till: the base substrate that drying is good 1600 ℃ of insulations in the electric furnace of oxidizing atmosphere were burnt till in 3 hours, obtained middle water containing opening.
Embodiment 7:
7.1, the preparation slurry: 75 gram methacrylic acid aminos, 6.2 gram polyoxyethylene glycol dimethacrylate fat are put into fill 273 gram deionized water beakers dissolvings and obtain premixed liquid, pour in the ball grinder; Take by weighing 1311.75 gram zircons (325 order), 173.25 gram quicklime PSZs (325 order), 371.25 gram zirconium English powder (600 order), 618.75 gram monoclinic zirconias (4000 order), 13 gram titanium oxide, 16.8 gram sodium hexametaphosphate dispersants and 6.5 gram skimmer dimethyl polysiloxanes respectively to going in the ball grinder; With the zirconia ball is mill ball; After among the ball mill mixing 50min; Add ammoniacal liquor and regulate 10 of slurry pH value, ball milling was processed slurry after 24 hours.
7.2, moulding and drying.In the slurry of step 1, add 7.5 gram initiator potassium persulfate and 1.1 gram catalyzer Tetramethyl Ethylene Diamines more respectively, degasification vacuumizes processing and stirs to slurry.Be injected in the forming mould insulation 35min after fixing under 75 ℃, 55%RH humidity.Slough mould after solidifying and obtain base substrate, base substrate is put into climatic chamber, keep 25 ℃ of temperature, humidity 90% environment drying down.
7.3, burn till: the base substrate that drying is good 1600 ℃ of insulations in the electric furnace of oxidizing atmosphere were burnt till in 3 hours, obtained middle water containing opening.
Embodiment 8:
8.1, pulp preparation: 110 gram acrylic amides, 12 gram polyoxyethylene glycol dimethacrylates are put into fill 434 gram deionized water beakers dissolvings and obtain premixed liquid, pour in the ball grinder; 1056 gram zircons (325 order), 158.4 gram monoclinic zirconias (325 order), 105.6 gram quicklime PSZs (325 order), 396 gram zirconium English powder (600 order), 924 gram monoclinic zirconias (4000 order), 15.84 gram titanium oxide, 15.84 gram ROHM and 5.4 gram skimmer dimethyl polysiloxanes are to going in the ball grinder; With the zirconia ball is mill ball; After among the ball mill mixing 20min; Add ammoniacal liquor and regulate 10 of slurry pH value, ball milling was processed slurry after 15 hours.
8.2, moulding and drying: in the slurry of step 1, add 3.1 gram initiator ammonium persulfates and 0.30 gram catalyzer Tetramethyl Ethylene Diamine more respectively, degasification vacuumizes and handles and stir to slurry.Be injected in the forming mould gel solidification moulding under 30 ℃, 85%RH humidity.Slough mould after solidifying and obtain base substrate, base substrate is put into climatic chamber, keep 15 ℃ of temperature, humidity 95% environment drying down.
8.3, burn till: the base substrate that drying is good 1600 ℃ of insulations in the electric furnace of oxidizing atmosphere were burnt till in 3 hours, obtained the middle water containing opening goods.
Claims (10)
1. the preparation method of a middle water containing opening; It is characterized in that: deionized water, organic monomer, linking agent are configured to premixed liquid; Add zircon, monoclinic zirconia, quicklime PSZ, titanium oxide powder raw material then; And add dispersion agent, skimmer, and regulate PH to 9-10 with ammoniacal liquor, ball mill mixing makes and is uniformly dispersed, the suspended nitride of good fluidity; In suspended nitride, add initiator and catalyzer then, stir and carry out vacuum stripping and handle, pour in the forming mould, under certain temperature and humidity, make the pulp gel curing molding; Molding blank through dry, be fired into middle water containing opening.
2. the preparation method of a kind of middle water containing opening according to claim 1 is characterized in that utilizing gel to annotate the membrane method moulding.
3. according to the preparation method of claims 1 described a kind of middle water containing opening, the organic monomer of selecting for use is one or both in acrylic amine, methylol acrylic amine, the methacrylic acid amino; How linking agent is methylene-bis acrylic amine, a kind of in two methylene glycol dimethacrylate amine, the polyoxyethylene glycol dimethacrylate fat; Initiator is ammonium persulphate or Potassium Persulphate; Catalyzer is a Tetramethyl Ethylene Diamine; Dispersion agent is a kind of in ROHM ammonia, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the ROHM; Skimmer is silicone antifoam agent or alcohol defoaming agent.
4. the preparation method of a kind of middle water containing opening according to claim 1, it is characterized in that: described premixed liquid accounts for the 4%-20% of slurry total mass, and the mass ratio of deionized water, organic monomer, linking agent is 100:8-40:5-0.5 in the premixed liquid.
5. the preparation method of a kind of middle water containing opening according to claim 1; It is characterized in that: the mass percent of described powder raw material is: zircon 40-85 ﹪; Monoclinic zirconia 15-50 ﹪, quicklime PSZ 0-10 ﹪, titanium oxide 0-1 ﹪; Wherein, the mass percent of zircon powder is: 325 order zircon 66.7-100 ﹪, 600 order zircon 0-33.3 ﹪; The mass percent of monoclinic zirconia is: 325 order monoclinic zirconia 0-40 ﹪; 4000 order monoclinic zirconia 60-100 ﹪; Quicklime PSZ granularity is 325 orders, and the titanium oxide granularity is 4000 orders.
6. the preparation method of a kind of middle water containing opening according to claim 1, it is characterized in that: initiator, catalyzer add-on are 0.1%-10.0%, the 0-2% of organic monomer quality.
7. the preparation method of a kind of middle water containing opening according to claim 1 and 2 is characterized in that: pulp gel curing molding TR is 55%-95% at 15-90 ℃, humidity.
8. the preparation method of a kind of middle water containing opening according to claim 1 is characterized in that the body drying envrionment temperature is that 15-100 ℃, humidity are 40%-95% RH.
9. the preparation method of a kind of middle water containing opening according to claim 1 is characterized in that: base substrate 1500-1650 ℃ of insulation in atmosphere furnace burnt till in 2-5 hour.
10. the preparation method of one of above-mentioned claim 1-9 described middle water containing opening is characterized in that: concrete process step comprises:
The preparation slurry
(1): deionized water, organic monomer, linking agent are mixed with premixed liquid, deionized water, organic monomer and linking agent mass ratio 100:8-40:5-0.5;
(2): the mass percent of powder raw material is: zircon 40-85 ﹪, monoclinic zirconia 15-50 ﹪, quicklime PSZ 0-10 ﹪, titanium oxide 0-1 ﹪; Wherein, the mass percent of zircon powder is: 325 order zircon 66.7-100 ﹪, 600 order zircon 0-33.3 ﹪; The mass percent of monoclinic zirconia is: 325 order monoclinic zirconia 0-40 ﹪; 4000 order monoclinic zirconia 60-100 ﹪; Quicklime PSZ granularity is 325 orders, and the titanium oxide granularity is 4000 orders; Add dispersion agent and skimmer;
(3) described powder, dispersion agent, skimmer, premixed liquid are put into ball grinder; The premixed liquid quality accounts for the 4%-20% into made stock quality; With the zirconia ball is mill ball; Ball mill mixing 20-50 minute, with ammoniacal liquor slurry PH is transferred to 9-10 then after, be uniformly dispersed after ball milling 15-36 hour, stablized, the slurry of good fluidity;
Blank forming and drying: in the slurry of above-mentioned preparation, add initiator and catalyzer, stir; Slurry is carried out degasification vacuumize processing, be injected into then in the forming mould, 15-90 ℃, the curing of 55-95%RH scope inner gel; After sloughing mould, base substrate is put into climatic chamber carry out drying, TR is 15-100 ℃, and humidity is 40%-95% RH;
Burn till: sintering in electric furnace, in 300-800 ℃, remove organism, 1500-1650 ℃ of insulation 2-5 hour, obtain the middle water containing opening goods then.
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| CN 201110331283 CN102503475B (en) | 2011-10-27 | 2011-10-27 | Preparation method of tundish nozzle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774558A (en) * | 2020-06-19 | 2020-10-16 | 江苏兴湖耐火材料有限公司 | Method for manufacturing tundish nozzle with excellent thermal shock stability for continuous casting |
| CN114682773A (en) * | 2022-04-11 | 2022-07-01 | 江苏福鑫新材料有限公司 | Tundish nozzle and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033147A (en) * | 2007-02-02 | 2007-09-12 | 淄博工陶耐火材料有限公司 | Large compact zircon overflow brick and manufacturing method thereof |
| CN101745968A (en) * | 2008-11-27 | 2010-06-23 | 郑州东方三力耐火材料有限公司 | Gel injection molding and forming technology of specific zircon brick |
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2011
- 2011-10-27 CN CN 201110331283 patent/CN102503475B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033147A (en) * | 2007-02-02 | 2007-09-12 | 淄博工陶耐火材料有限公司 | Large compact zircon overflow brick and manufacturing method thereof |
| CN101745968A (en) * | 2008-11-27 | 2010-06-23 | 郑州东方三力耐火材料有限公司 | Gel injection molding and forming technology of specific zircon brick |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774558A (en) * | 2020-06-19 | 2020-10-16 | 江苏兴湖耐火材料有限公司 | Method for manufacturing tundish nozzle with excellent thermal shock stability for continuous casting |
| CN111774558B (en) * | 2020-06-19 | 2021-12-14 | 江苏兴湖耐火材料有限公司 | Method for manufacturing tundish nozzle with excellent thermal shock stability for continuous casting |
| CN114682773A (en) * | 2022-04-11 | 2022-07-01 | 江苏福鑫新材料有限公司 | Tundish nozzle and preparation method thereof |
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| CN102503475B (en) | 2013-08-28 |
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