CN104999549B - Inner core used for producing fusion cast bricks - Google Patents
Inner core used for producing fusion cast bricks Download PDFInfo
- Publication number
- CN104999549B CN104999549B CN201510453348.0A CN201510453348A CN104999549B CN 104999549 B CN104999549 B CN 104999549B CN 201510453348 A CN201510453348 A CN 201510453348A CN 104999549 B CN104999549 B CN 104999549B
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- Prior art keywords
- inner core
- bisque
- graphite
- fused cast
- graphite powder
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/54—Producing shaped prefabricated articles from the material specially adapted for producing articles from molten material, e.g. slag refractory ceramic materials
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention relates to an inner core used for producing fused cast bricks. The demoulding problem of fused cast AZS finished products can be effectively solved. According to the technical scheme, the inner core comprises an inner core body; a graphite powder layer is smeared on the outer surface of the inner core body; a zircon powder layer is smeared on the outer surface of the graphite powder layer; the graphite powder layer is prepared by uniformly mixing graphite powder and sweet water and then smearing the mixture on the outer surface of the inner core body; the weight ratio of the graphite powder to the sweet water is 1:1.2; the sweet water is prepared by evenly mixing water and cane sugar, and the weight ratio of the water to the cane sugar is 10:1; the zircon powder layer is prepared by evenly mixing zircon powder and water of the same weight and then smearing the mixture on the outer surface of the graphite powder layer. The inner core is novel and unique in structure, simple, reasonable, easy to produce and low in cost; the demoulding method is simple; core leach is easy; damage caused by difficult core leach to bricks is avoided; brick inner cores are smooth after demoulding; the working efficiency of inner core cleaning is greatly improved; the inner core is an innovation of moulds for fused cast zirconia alumina.
Description
Technical field
It is particularly a kind of for producing in fused cast refractories the present invention relates to electro-melting zircon corundum brick production technical field
Core and the fused cast refractories production method using the inner core.
Background technology
Fusion casting azs fire resistive material product has relatively common loudspeaker barrel shape brick, and megaphone-shaped specification length is in 300mm
To 700mm, in 80mm to 150mm or so, major part bore is in 150 to 350mm or so for microcephaly's bore.Bore is less, length
Longer, the inner core cleaning difficulty of product is bigger.When sand mold makes, cone inner core sand mold material is common quartz sand, Bai Gang
Beautiful inner core.1710 DEG C of quartz sand fusing point, 2030 DEG C of white fused alumina fusing point.When stirring with bonding material or there are low-melting impurities to deposit
When, the low eutectic point less than 1800 DEG C or 1710 DEG C can be generated.Temperature is on 1800 DEG C of left sides when being cast due to fused cast refractories
The right side, inner core heat ratio is relatively concentrated and absorbs heat spreader slowly, and inner core material can be caused firmly to be bonded in spool tile inwall
On, cause later stage inner core cleaning work difficulty or ease greatly, clearing up a big inner core clearance time of difficulty needs one to two day, or even
There is 50 percent product therefore to scrap.The hitting dynamics of cleaning inner core causes 10 waste product when big.To this side
It is exactly current technology defect that the work difficulty in face is actual.
The content of the invention
For above-mentioned situation, the purpose to overcome the defect of prior art, the present invention is just to provide one kind for producing electricity
The inner core of molten brick, can effectively solving fusion casting azs product release problems.
The present invention solve technical scheme be,
A kind of inner core for producing fused cast refractories, including inner core-body, the outer surface of inner core-body is coated with graphite bisque, graphite
The outer surface of bisque is coated with zirconium English bisque.
Described graphite bisque be by made by the outer surface of inner core-body is applied to after graphite powder and sucrose solution mix homogeneously, its
In, the weight ratio of graphite powder and sucrose solution is 1: 1.2, and described sucrose solution compares 10: 1 water by weight and sucrose mix homogeneously is made
's；
Described zirconium English bisque be by etc. weight zirconium English powder and water mix homogeneously after be applied to graphite bisque outer surface structure
Into.
A kind of fused cast refractories production method using above-mentioned inner core, comprises the following steps：
（1）Make inner core：
Inner core is made by specification, described inner core includes inner core-body, and the outer surface of inner core-body is coated with 1.5-2mm's
Graphite bisque, the outer surface of graphite bisque is coated with the zirconium English bisque of 1-1.5mm；
Described graphite bisque be by made by the outer surface of inner core-body is applied to after graphite powder and sucrose solution mix homogeneously, its
In, the weight ratio of graphite powder and sucrose solution is 1: 1.2, and described sucrose solution compares 10: 1 water by weight and sucrose mix homogeneously is made
's；
Described zirconium English bisque be by etc. weight zirconium English powder and water mix homogeneously after be applied to graphite bisque outer surface structure
Into；
（2）Installation mold is simultaneously cast
Inner core is sleeved in external mold, the casting that the receiving space between external mold inwall and interior outer core constitutes fused cast refractories is empty
Between, the casting founding Corhart Zac-block casting liquid toward in casting space；
（3）Cooling annealing, the demoulding
Casting die after casting is integrally put into after being gradually annealed to less than 60 DEG C in couveuse, dismounting external mold simultaneously will be interior
Core is extracted out, the high-melting-point and smooth texture of graphite bisque, plays the effect for being easy to extract inner core out；Gao Ying bisques play prevention
Pollution of the graphite powder to fused cast refractories；Under graphite bisque and zirconium Ying bisque collective effects, inner core cleaning efficiency after the demoulding and the demoulding
Greatly improve.
Core arrangement novel and unique of the present invention, advantages of simple, easily production, low cost, release method is simple, and depoling is easy,
Avoid because the difficult caused brick material of depoling is damaged, brick body inner core is very smooth after the demoulding, and the work efficiency of inner core cleaning is carried significantly
Height, is the innovation on casting zirconia corundum mould.
Description of the drawings
Fig. 1 is the sectional front view of inner core-body of the present invention.
Fig. 2 is the top view of inner core-body of the present invention.
Specific embodiment
The specific embodiment of the present invention is described in further detail below in conjunction with accompanying drawing.
Be given by Fig. 1-2, a kind of inner core for producing fused cast refractories of the present invention, including inner core-body 1, the appearance of inner core-body 1
Face is coated with graphite bisque 2, and the outer surface of graphite bisque 2 is coated with zirconium English bisque 3.
To ensure using effect, described graphite bisque 2 is to be applied to inner core-body by after graphite powder and sucrose solution mix homogeneously
Outer surface made by, wherein, the weight ratio of graphite powder and sucrose solution is 1: 1.2, described sucrose solution be compared by weight 10: 1 water
With made by sucrose mix homogeneously；The thickness of described graphite bisque 2 is 1.5-2mm；
Described zirconium English bisque 3 be by etc. weight zirconium English powder and water mix homogeneously after be applied to graphite bisque outer surface structure
Into；The thickness of described zirconium English bisque 3 is 1-1.5mm；
There is the through hole 4 of up/down perforation at described inner core-body center.
A kind of fused cast refractories production method using above-mentioned inner core, comprises the following steps：
（1）Make inner core：
Inner core is made by specification, described inner core includes inner core-body, and the outer surface of inner core-body is coated with 1.5-2mm's
Graphite bisque 2, the outer surface of graphite bisque 2 is coated with the zirconium English bisque 3 of 1-1.5mm；
Described graphite bisque 2 be by made by the outer surface of inner core-body is applied to after graphite powder and sucrose solution mix homogeneously,
Wherein, the weight ratio of graphite powder and sucrose solution be 1: 1.2, described sucrose solution be compared by weight 10: 1 water and sucrose mix homogeneously system
Into；
Described zirconium English bisque 3 be by etc. weight zirconium English powder and water mix homogeneously after be applied to graphite bisque outer surface structure
Into；
（2）Installation mold is simultaneously cast
Inner core is sleeved in external mold, the casting that the receiving space between external mold inwall and interior outer core constitutes fused cast refractories is empty
Between, the casting founding Corhart Zac-block casting liquid toward in casting space；
（3）Cooling annealing, the demoulding
Casting die after casting is integrally put into after being gradually annealed to less than 60 DEG C in couveuse, dismounting external mold simultaneously will be interior
Core is extracted out, the high-melting-point and smooth texture of graphite bisque, plays the effect for being easy to extract inner core out；Gao Ying bisques play prevention
Pollution of the graphite powder to fused cast refractories；Under graphite bisque and zirconium Ying bisque collective effects, inner core cleaning efficiency after the demoulding and the demoulding
Greatly improve.
Graphite powder is easy to the inner core after casting with brick body disengaging as a kind of fusion casting azs product abnormal shape inner core releasing agent
Effect, graphite powder fusing point is up to 3850 °C, and smooth texture selects graphite powder as release agent material from this characteristic.In sand mold
After core is carried out, graphite bisque 2 is smeared in its outer surface, graphite bisque 2 is by being applied to after graphite powder and sucrose solution mix homogeneously
Made by the outer surface of core body, wherein, the weight ratio of graphite powder and sucrose solution is 1: 1.2, and described sucrose solution is to compare 10: 1 by weight
Water and sucrose mix homogeneously made by, sucrose plays upon mixing certain viscosity effect, it is ensured that graphite powder does not scatter disengaging
Interior core outer surface, then zirconium English bisque is smeared in the outer surface of graphite bisque 2, play the work for preventing graphite powder to the pollution of fused cast refractories
With compared with prior art, the present invention has advantages below：
1st, prevented, because inner core is difficult to clear up the waste product for causing, to make the ratio of briquetting in terms of inner core improve 10%.Reason is, stone
Powdered ink fusing point is high, non-caked brick face under smooth texture high temperature, depoling is easy, it is to avoid because brick material is damaged caused by depoling is difficult；
2nd, under due to graphite bisque and the effect of zirconium Ying bisques, brick body inner core is very smooth after the demoulding, the work effect of inner core cleaning
Rate improves more than ten times；
3rd, substantial amounts of high labor intensity and human input are reduced, Social and economic benef@is notable.
Claims (6)
1. a kind of inner core for producing fused cast refractories, including inner core-body, it is characterised in that the outer surface of inner core-body is coated with graphite
Bisque（2）, graphite bisque（2）Outer surface be coated with zirconium English bisque（3）；Described graphite bisque（2）It is by graphite powder and sugar
It is applied to after water mix homogeneously made by the outer surface of inner core-body, wherein, the weight ratio of graphite powder and sucrose solution is 1: 1.2, described
Sucrose solution be by made by weight compares 10: 1 water and sucrose mix homogeneously.
2. the inner core for producing fused cast refractories according to claim 1, it is characterised in that described graphite bisque（2）'s
Thickness is 1.5-2mm.
3. the inner core for producing fused cast refractories according to claim 1, it is characterised in that described zirconium English bisque（3）It is
By etc. weight zirconium English powder and water mix homogeneously after be applied to what graphite bisque outer surface was constituted.
4. the inner core for producing fused cast refractories according to claim 1 or 3, it is characterised in that described zirconium English bisque（3）
Thickness be 1-1.5mm.
5. the inner core for producing fused cast refractories according to claim 1, it is characterised in that on described inner core-body center has
The through hole of lower insertion（4）.
6. the fused cast refractories production method of inner core described in a kind of employing claim 1, it is characterised in that comprise the following steps：
（1）Make inner core：
Inner core is made by specification, described inner core includes inner core-body, and the outer surface of inner core-body is coated with the graphite of 1.5-2mm
Bisque, the outer surface of graphite bisque is coated with the zirconium English bisque of 1-1.5mm；
Described graphite bisque be by made by the outer surface of inner core-body is applied to after graphite powder and sucrose solution mix homogeneously, wherein,
The weight ratio of graphite powder and sucrose solution is 1: 1.2, and described sucrose solution is by made by weight compares 10: 1 water and sucrose mix homogeneously；
Described zirconium English bisque be by etc. weight zirconium English powder and water mix homogeneously after be applied to graphite bisque outer surface and constitute；
（2）Installation mold is simultaneously cast
Inner core is sleeved in external mold, the receiving space between external mold inwall and interior outer core constitutes the casting space of fused cast refractories,
The casting founding Corhart Zac-block casting liquid toward in casting space；
（3）Cooling annealing, the demoulding
Casting die after casting is integrally put into after being gradually annealed to less than 60 DEG C in couveuse, removes external mold and take out inner core
Go out, the high-melting-point and smooth texture of graphite bisque, play the effect for being easy to extract inner core out；Gao Ying bisques play prevention graphite
Pollution of the powder to fused cast refractories；Under graphite bisque and zirconium Ying bisque collective effects, inner core cleaning efficiency is significantly after the demoulding and the demoulding
Improve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453348.0A CN104999549B (en) | 2015-07-29 | 2015-07-29 | Inner core used for producing fusion cast bricks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453348.0A CN104999549B (en) | 2015-07-29 | 2015-07-29 | Inner core used for producing fusion cast bricks |
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| CN104999549A CN104999549A (en) | 2015-10-28 |
| CN104999549B true CN104999549B (en) | 2017-05-03 |
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| CN201510453348.0A Active CN104999549B (en) | 2015-07-29 | 2015-07-29 | Inner core used for producing fusion cast bricks |
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Families Citing this family (1)
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| CN113372125A (en) * | 2021-06-10 | 2021-09-10 | 安徽中材新材料科技有限公司 | Preparation method of composite sand template for producing fused zirconia corundum product |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4289803A (en) * | 1979-08-20 | 1981-09-15 | General Electric Company | Foundry mold treating compositions and methods of making same |
| CN2359080Y (en) * | 1997-12-09 | 2000-01-19 | 东风汽车公司 | Plasma Spraying treatment hot working mould |
| KR20110129014A (en) * | 2010-05-25 | 2011-12-01 | 임호열 | The alumina washes for casting mould |
| CN102285803A (en) * | 2010-06-18 | 2011-12-21 | 孙守富 | Production method of electrically-fused zirconia-corundum refractory brick |
| CN103042160B (en) * | 2012-12-25 | 2015-02-11 | 马鞍山市万鑫铸造有限公司 | Zircon sand contained moulding sand and preparation method thereof |
| CN103567359A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Clay green sand for high-pressure molding and preparation method thereof |
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