CN109320130A - A kind of fused cast refractories sand mold modified water glass bonding agent and preparation method thereof - Google Patents
A kind of fused cast refractories sand mold modified water glass bonding agent and preparation method thereof Download PDFInfo
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- CN109320130A CN109320130A CN201811266857.2A CN201811266857A CN109320130A CN 109320130 A CN109320130 A CN 109320130A CN 201811266857 A CN201811266857 A CN 201811266857A CN 109320130 A CN109320130 A CN 109320130A
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- component
- water glass
- modified water
- weight percent
- bonding agent
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention relates to a kind of fused cast refractories sand mold modified water glass bonding agent and preparation method thereof, technical solution is, including component A and component B；The weight ratio of component A and component B are 1-2:1-2, and component A includes: the softened water of the food-grade polypropylene acid sodium of weight percent 0.5%, weight percent 99.5%；Component B includes: the softened water of the xanthan gum of weight percent 0.5%, weight percent 99.5%；And the sodium hydroxide of 10 times of weight of xanthan gum；Retained strength after present invention casting is only 0.2-0.5MP, retained strength reduces 40% or more, sand mold after enabling casting is quickly easily crushed, difficulty is recycled to substantially reduce, the cost of enterprise is also just reduced in this way, it solves the problems, such as those skilled in the art's desired solution always but again insurmountable, is the huge innovation on zirconia-corundum refractory brick sand mold raw material, remarkable in economical benefits.
Description
Technical field
The present invention relates to a kind of fused cast refractories sand mold modified water glass bonding agents and preparation method thereof.
Background technique
The main material for building glass furnace is zirconia-corundum refractory brick, and the production of fused cast refractories is by zircon sand, alumina powder
And a small amount of soda ash is mixed into batch, it is feed liquid that electric arc furnaces, which is added, and carries out 2000 DEG C of high temperature melting, is then cast to
The type of sand mold is intracavitary, the blank brick to fused cast refractories through insulation annealing after a period of time.
Fused cast refractories sand mold is using silica sand as main material.Traditional sand mold is that waterglass is sand mold bonding agent, according to certain
After ratio is mixed with sand, it is fabricated to sand plate, by 200 DEG C or so dewatered dryings, forms the sand plate with certain flexural strength, then
Sand plate foundry loam bonding is formed together the shape of a sand mold, is fabricated into from sand plate and can satisfy the finished product sand mold that casting requires
Required time is 72 hours, and hardened piece of sand, retained strength are very high when brick output after casting, want old sand recycling and reusing difficulty very
Greatly, this sand mold producing efficiency is low, sand mold regularity difference causes feed liquid waste, since sand mold regularity difference causes the later period to finish
The low equal drawbacks of grinding efficiency.
Castings Produce with Furan Resin also has been used to fused cast refractories casting sand type, and advantage is that sand mold producing efficiency is dissipated higher than waterglass
Plate dries the three times of sand mold or more, and since Castings Produce with Furan Resin has from iron-cloth energy, Castings Produce with Furan Resin does not have to drying, and
It can be fabricated to whole sand mo(u)ld, sand mold regularity is accurate, the disadvantage is that: Castings Produce with Furan Resin can fire under the condition of high temperature in casting
It burns, when burning, generates a large amount of carbon dioxide gas, and it is more to directly influence the foam stomata that brick face blacks, brick face is intensive, so
Castings Produce with Furan Resin has dragged down the class of fused cast refractories, fused cast refractories service life is reduced, and resin own smell is big, to environmental protection
It is not up to standard for it is required that.
There are also a kind of self-hardening soluble glass sand type, curing agent solves brick face nigrescence, brick face using inorganic rouge
Problem more than intensive foam stomata, waterglass additive amount are 8% or so of silica sand weight, and waterglass is at high cost, while by
High in waterglass additive amount, the retained strength (compression strength of sand mold after casting) after leading to sand casting is very big, after casting
The old sand obtained after sand mold is broken can recycle, and the old sand granularity requirement of recycling is 20 mesh to 60 mesh, and retained strength is got over
Greatly, the broken difficulty recycled of old sand also increases with it.Often a large amount of manpower object is consumed in broken screen in this link
Power, is those skilled in the art's problem in the urgent need to address, and how fused cast refractories sand mold bonding agent avoids the disadvantage mentioned above from being
Instantly extremely urgent project.
Summary of the invention
For above situation, for the defect for overcoming the prior art, the purpose of the present invention is just to provide a kind of fused cast refractories sand mold
With modified water glass bonding agent and preparation method thereof, it can effectively solve self-hardening resin bonded sand mould waterglass cost control and reduction is poured
After casting the problem of retained strength.
The technical solution that the present invention solves is a kind of fused cast refractories sand mold modified water glass bonding agent, including component A and group
Divide B；The weight ratio of component A and component B are 1-2:1-2.
Preferably, including component A and component B；
Component A includes: the softened water of the food-grade polypropylene acid sodium of weight percent 0.5%, weight percent 99.5%；
Component B includes: the softened water of the xanthan gum of weight percent 0.5%, weight percent 99.5%；And xanthan gum
The sodium hydroxide of 10 times of weight；
The weight ratio of component A and component B are 1:1.
A kind of preparation method of fused cast refractories sand mold modified water glass bonding agent, comprising the following steps:
(1) preparation of component A
Softened water is added to the container, food-grade polypropylene acid sodium is added under agitation, stirs 2-3h, then stand 5-
6h；
(2) preparation of component B
Sodium hydroxide is added in softened water, is uniformly mixed, xanthan gum is then added under agitation, stirs 30-
40min, then stand 2-3h；
(3) it mixes
Component A and component B are mixed, stir 30-40min to get.
Preferably, the revolving speed of stirring is 1200-1600rpm.
A kind of modified water glass of modified water glass bonding agent preparation, the raw material including following weight percent: modified water
Glass bond 10-20%, waterglass 80-90%.
Preferably, 5-10min is mixed in modified water glass bonding agent and waterglass, then stands more than for 24 hours to obtain the final product.
The formula of the invention is reasonable, and preparation method is simple, not only avoids influence of the resin bonded sand mould to brick surface quality, brick face
Pure color, stomata almost prevent, while waterglass additive amount also being made to be reduced to the 6% (weight relative to silica sand from original 8%
Amount), it is often more important that, the retained strength after casting is only 0.2-0.5MP, and retained strength reduces 40% or more, after making casting
Sand mold quickly can easily be crushed, recycle difficulty to substantially reduce, also just reduce the cost of enterprise in this way, solve this
Field technical staff always want solves the problems, such as but and it is insurmountable, be the huge wound on zirconia-corundum refractory brick sand mold raw material
Newly, remarkable in economical benefits.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to embodiments.
Embodiment 1
The present embodiment modified water glass bonding agent, including component A and component B；The weight ratio of component A and component B are 1:2；
Wherein:
Component A includes: the softened water of the food-grade polypropylene acid sodium of weight percent 0.5%, weight percent 99.5%；
Component B includes: the softened water of the xanthan gum of weight percent 0.5%, weight percent 99.5%；And xanthan gum
The sodium hydroxide of 10 times of weight；
The preparation method of modified water glass bonding agent the following steps are included:
(1) preparation of component A
Softened water is added to the container, food-grade polypropylene acid sodium is added under agitation, stirs 2h, then stand 5h；
(2) preparation of component B
Sodium hydroxide is added in softened water, is uniformly mixed, xanthan gum is then added under agitation, stirs 30min,
2h is stood again；
(3) it mixes
Component A and component B are mixed, stir 30min to get.
The modified water glass prepared using modified water glass bonding agent, the raw material including following weight percent: modified water
5min is mixed in modified water glass bonding agent and waterglass by glass bond 10%, waterglass 90%, then stand for 24 hours with
On to obtain the final product.
Embodiment 2
The present embodiment modified water glass bonding agent, including component A and component B；The weight ratio of component A and component B are 1:1；
Wherein:
Component A includes: the softened water of the food-grade polypropylene acid sodium of weight percent 0.5%, weight percent 99.5%；
Component B includes: the softened water of the xanthan gum of weight percent 0.5%, weight percent 99.5%；And xanthan gum
The sodium hydroxide of 10 times of weight；
The preparation method of modified water glass bonding agent the following steps are included:
(1) preparation of component A
Softened water is added to the container, food-grade polypropylene acid sodium is added under agitation, stirs 2.5h, then stand
5.5h；
(2) preparation of component B
Sodium hydroxide is added in softened water, is uniformly mixed, xanthan gum is then added under agitation, stirs 35min,
2.5h is stood again；
(3) it mixes
Component A and component B are mixed, stir 35min to get.
The modified water glass prepared using modified water glass bonding agent, the raw material including following weight percent: modified water
8min is mixed in modified water glass bonding agent and waterglass by glass bond 15%, waterglass 85%, then stand for 24 hours with
On to obtain the final product.
Embodiment 3
The present embodiment modified water glass bonding agent, including component A and component B；The weight ratio of component A and component B are 2:1；
Wherein:
Component A includes: the softened water of the food-grade polypropylene acid sodium of weight percent 0.5%, weight percent 99.5%；
Component B includes: the softened water of the xanthan gum of weight percent 0.5%, weight percent 99.5%；And xanthan gum
The sodium hydroxide of 10 times of weight；
The preparation method of modified water glass bonding agent the following steps are included:
(1) preparation of component A
Softened water is added to the container, food-grade polypropylene acid sodium is added under agitation, stirs 3h, then stand 6h；
(2) preparation of component B
Sodium hydroxide is added in softened water, is uniformly mixed, xanthan gum is then added under agitation, stirs 40min,
3h is stood again；
(3) it mixes
Component A and component B are mixed, stir 40min to get.
The modified water glass prepared using modified water glass bonding agent, the raw material including following weight percent: modified water
10min is mixed in modified water glass bonding agent and waterglass by glass bond 20%, waterglass 80%, then stand for 24 hours with
On to obtain the final product.
In inventive formulation, the characteristics of waterglass is to precipitate, aging, reduce adhesion strength.Sodium Polyacrylate is in water glass
Having primarily served in glass prevents waterglass precipitate, also it is prevented that waterglass precipitate, aging.The addition of xanthan gum is keeping water
The adhesion strength that sodium silicate binder is increased while glass aging can achieve the reduction of waterglass additive amount, originally water glass
Glass additive amount is the 8% of silica sand weight, and the 6% of silica sand weight is only needed after improvement.The reduction of waterglass additive amount is meant that
Retained strength after sand casting reduces, and creates condition for old sand recycling, while reducing production cost.Traditional is certainly hard
Compression strength before changing the casting of soluble glass sand type reaches 1.7-2.0MPa, and the retained strength after casting reaches 0.7-0.8MP, warp
Test of many times, the self-hardening soluble glass sand type produced using modified water glass bonding agent of the present invention, not only avoids resin
Influence of the sand sand mold to brick surface quality, brick face color is pure, stomata almost prevents, while waterglass additive amount also reduces,
Importantly, the compression strength before casting equally reaches 1.7-2.0MPa, but the retained strength after casting is only 0.2-
0.5MP, retained strength reduce 40% or more, and the sand mold after enabling casting is quickly easily crushed, and recycle difficulty significantly
It reduces, the sand mold for also just reducing enterprise in this way recycles cost, solves those skilled in the art and wants to solve still always
Insurmountable problem again, is the huge innovation on zirconia-corundum refractory brick sand mold raw material, remarkable in economical benefits.
Claims (7)
1. a kind of fused cast refractories sand mold modified water glass bonding agent, which is characterized in that including component A and component B；Component A and group
The weight ratio for dividing B is 1-2:1-2.
2. fused cast refractories sand mold modified water glass bonding agent according to claim 1, which is characterized in that it is preferred, including
Component A and component B；
Component A includes: the softened water of the food-grade polypropylene acid sodium of weight percent 0.5%, weight percent 99.5%；
Component B includes: the softened water of the xanthan gum of weight percent 0.5%, weight percent 99.5%；And 10 times of xanthan gum
The sodium hydroxide of weight；
The weight ratio of component A and component B are 1:1.
3. a kind of preparation method of fused cast refractories sand mold modified water glass bonding agent as claimed in claim 1 or 2, feature exist
In, comprising the following steps:
(1) preparation of component A
Softened water is added to the container, food-grade polypropylene acid sodium is added under agitation, stirs 2-3h, then stand 5-6h；
(2) preparation of component B
Sodium hydroxide is added in softened water, is uniformly mixed, xanthan gum is then added under agitation, stirs 30-40min,
2-3h is stood again；
(3) it mixes
Component A and component B are mixed, stir 30-40min to get.
4. the preparation method of fused cast refractories sand mold modified water glass bonding agent according to claim 3, which is characterized in that stir
The revolving speed mixed is 1200-1600rpm.
5. a kind of modified water glass prepared using modified water glass bonding agent described in claim 1, which is characterized in that including
The raw material of following weight percent: modified water glass bonding agent 10-20%, waterglass 80-90%.
6. modified water glass according to claim 5, which is characterized in that preferred, the original including following weight percent
Material: modified water glass bonding agent 15%, waterglass 85%.
7. a kind of preparation method of such as modified water glass described in claim 5 or 6, which is characterized in that modified water glass bonding
5-10min is mixed in agent and waterglass, then stands more than for 24 hours to obtain the final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266857.2A CN109320130B (en) | 2018-10-29 | 2018-10-29 | Modified water glass adhesive for sand mold of electric melting brick and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266857.2A CN109320130B (en) | 2018-10-29 | 2018-10-29 | Modified water glass adhesive for sand mold of electric melting brick and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109320130A true CN109320130A (en) | 2019-02-12 |
| CN109320130B CN109320130B (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811266857.2A Active CN109320130B (en) | 2018-10-29 | 2018-10-29 | Modified water glass adhesive for sand mold of electric melting brick and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015863A (en) * | 2019-04-17 | 2019-07-16 | 郑州纬通耐火材料科技有限公司 | A kind of modifying agent of fused cast refractories casting sand type waterglass and its modified water glass of preparation |
| CN114436558A (en) * | 2022-01-17 | 2022-05-06 | 都江堰瑞泰科技有限公司 | Water glass modifier, modified water glass sand mold, preparation process and application thereof |
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| CN101658898A (en) * | 2009-09-16 | 2010-03-03 | 沈阳汇亚通铸造材料有限责任公司 | Preparation method of casting water glass |
| CN103212666A (en) * | 2013-04-03 | 2013-07-24 | 沈阳汇亚通铸造材料有限责任公司 | Slurry-shaped inorganic enhancing agent for casting sodium silicate self-hardening sand and preparation method thereof |
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| JPS5510319A (en) * | 1978-07-06 | 1980-01-24 | Mitsubishi Electric Corp | Composition for casting mold |
| JPS57146445A (en) * | 1981-03-04 | 1982-09-09 | Hitachi Ltd | Binder for mold hardened by gaseous co2 |
| CN1238249A (en) * | 1999-05-26 | 1999-12-15 | 沈阳市铸造材料研究所 | Modified water glass for casting and its preparing process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015863A (en) * | 2019-04-17 | 2019-07-16 | 郑州纬通耐火材料科技有限公司 | A kind of modifying agent of fused cast refractories casting sand type waterglass and its modified water glass of preparation |
| CN110015863B (en) * | 2019-04-17 | 2021-08-24 | 郑州纬通电熔新材料科技有限公司 | Modifier for water glass for casting sand mold of electric melting brick and modified water glass prepared by modifier |
| CN114436558A (en) * | 2022-01-17 | 2022-05-06 | 都江堰瑞泰科技有限公司 | Water glass modifier, modified water glass sand mold, preparation process and application thereof |
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| CN109320130B (en) | 2020-11-10 |
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