CN106424538B - A method of penetration-prevention cast paint is prepared by raw material of andalusite - Google Patents
A method of penetration-prevention cast paint is prepared by raw material of andalusite Download PDFInfo
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- CN106424538B CN106424538B CN201610791888.4A CN201610791888A CN106424538B CN 106424538 B CN106424538 B CN 106424538B CN 201610791888 A CN201610791888 A CN 201610791888A CN 106424538 B CN106424538 B CN 106424538B
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- fire resistant
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- agent
- resistant infilling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
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- Mechanical Engineering (AREA)
- Paints Or Removers (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The present invention discloses a kind of method for preparing penetration-prevention cast paint as raw material using andalusite, and the applicable surface of penetration-prevention coating is improved and then configuring the coating of different systems.The present invention makes its interaction by designing a variety of different types of fire resistant infillings, suspending agent etc., not only can replace the cast paint of existing single type and applicable various types of rigid casting use.
Description
Technical field
The present invention relates to a kind of preparation methods of penetration-prevention cast paint, more particularly to one kind is using andalusite as raw material
The method for preparing penetration-prevention cast paint.
Background technique
Penetration-prevention cast paint be in order to prevent steel casting surface molten steel oxidation and generate the painting of resisting penetration defect
Material.Penetration-prevention cast paint must have higher fire resistance, preferable thermal stability, chemical inertness and cannot produce with molten steel
Biochemical reaction.
Existing penetration-prevention cast paint generallys use chromite sand and is raw material preparation or uses zirconium English powder for original
Material preparation, but those material costs are higher, troublesome in poeration.
Summary of the invention
Technical problem to be solved by the present invention lies in, for the above-mentioned deficiency of the prior art, propose it is a kind of cost is relatively low,
The method that anti-molten steel penetrating power preferably prepares penetration-prevention cast paint as raw material using andalusite.
The present invention solves its technical problem, the technical solution adopted is that, it proposes a kind of using andalusite as raw material preparation antiseepage
The method of saturating scab cast paint comprising step:
It configures raw material: configuring raw material according to following mass percent:
Fire resistant infilling；The fire resistant infilling is made of the material of following mass fraction: andalusite: 50-70 parts；α-Al2O3:
5-10 parts；White alundum powder: 20-25 parts；Diatomite: 1-3 parts；Mica powder: 5-7 parts；Forsterite powder: 10-15 parts；
Carrier；The carrier quality is the 250%-300% of fire resistant infilling；
Suspending agent；The suspending agent quality is the 5%-10% of fire resistant infilling；
Binder；The binder quality is the 3%-5% of fire resistant infilling；
Wetting and penetrating agent；The wetting and penetrating agent quality is the 0.2%-0.5% of fire resistant infilling；
Defoaming agent；The defoaming agent quality is the 0.05%-0.08% of fire resistant infilling；
Dispersing agent；The dispersing agent quality is the 0.12%-0.22% of fire resistant infilling.
Impermeable cast paint of the invention is by fire resistant infilling, carrier, suspending agent, binder, wetting and penetrating agent, defoaming
Totally 7 parts form for agent, dispersing agent, and various pieces play different role in coating different phase, and influence each other.
Fire resistant infilling is the main part of coating, is the main determining factor of coating anti-stick grittiness.In the present invention, fire resisting is filled out
Material is by andalusite: 50-70 parts；α-Al2O3: 5-10 parts；White alundum powder: 20-25 parts；Diatomite: 1-3 parts；Mica powder: 5-7 parts；
Forsterite powder: 10-15 parts of compositions have been broken and have only constituted becoming for fire resistant infilling by the filler of single type in the prior art
Gesture；Above-mentioned various types of fillers of the invention play a role jointly, and the pH value of finally formed fire resistant infilling is suitable for, can
It is suitble to various types of steel castings to use.
Specifically, main component is Al in andalusite2O3, can be analyzed to mullite and SiO after heating2；α-Al2O3Belong to
Trigonal system, fusing point is higher, during heating can be in conjunction with andalusite so that coating has preferable wearability, electrical insulating property
And chemical stability.White alundum powder predominant amount is still Al2O3, but its anti acid alkali performance is strong, can be improved the applicable surface of coating,
Thermal conductivity is higher simultaneously, and coating is facilitated to form molten condition.Diatomite is applicable in certain ingredients as material of main part, because of its valence
Lattice are cheap and adsorption capacity is strong, use diatomite as auxiliary material in the present invention, mainly since diatomite is cellular knot
Structure can play good heat preservation and storage gas performance to coating.Mica powder can effectively prevent the infiltration of molten metal.Forsterite powder
In alkalinity, the mullite in acidity after andalusite decomposes can be effectively neutralized, so that coating pH value of the invention is suitable for.Simultaneously
Forsterite has stronger anti-metal oxide erosion ability, but has biggish gas forming amount after forsterite heating, because
The content of this forsterite not only needs also to need the storage tolerance in view of diatomite in view of andalusite content.
Carrier uses water or ethyl alcohol to constitute in the present embodiment.
Suspending agent plays a decisive role for the rheological property and processing performance of coating.In the present embodiment, suspending agent is by such as
The component of lower mass fraction is constituted: sodium bentonite: 10-15 parts；Polyvinylpyrrolidone: 5-7 parts；Hydroxypropyl cellulose: 3-5
Part.
Since fire resistant infilling of the invention is made of a variety of fillers of different nature, suspending agent is using different types of
Suspending agent is composed.And three kinds of suspending agents that the present invention chooses belong to suspending agent that is i.e. water-soluble and dissolving in alcohols,
Use scope of the invention can effectively be expanded.Above-mentioned suspending agent may make coating to form stable colloidal dispersion, so that coating exists
Using keeping uniform component in, storage or transportational process, carrier prevented to be detached from fire resisting without precipitated and separated phenomenon and may also function as
Filler and individually protrude into molding sand.
In the present invention, binder is polyvinyl acetate emulsion.
Wetting and penetrating agent is polyoxyethylated alkyl alcohol.Polyoxyethylated alkyl alcohol can be mentioned with quick humidification whose surfaces
High coating penetration and adhesion property.
Defoaming agent is sodium tripolyphosphate.Sodium tripolyphosphate is used usually as surfactant, but in the present invention, by
PH value is greater than 9 after sodium tripolyphosphate is dissolved in water, can play the role of defoaming jointly with polyoxyethylated alkyl alcohol effect.
Dispersing agent is that sodium pyrophosphate and hydrocarbyl sulfonate combine.Sodium pyrophosphate and hydrocarbyl sulfonate correspond to different fire resistings and fill out
Material so that between the filler grain of coherent condition separate and be adsorbed in particle surface, so that coating is maintained at stable dispersion suspension
State.
It rolls suspending agent, fire resistant infilling and after binder mixing 30-50 minutes, rolls time 1-2 hour；
The length for rolling the time directly affects the performance of coating.The rheological property for rolling time too short then coating is poor, if
Rolling overlong time then causes to be mutually twisted between particle and colloid and resistance repulsion.
Carrier stirring is added, and wetting and penetrating agent, defoaming agent and dispersing agent are added in whipping process；Mixing time 4-8
Hour.
The present invention makes its interaction by designing a variety of different types of fire resistant infillings, suspending agent etc., not only can be with
It is used instead of the cast paint and applicable various types of rigid casting of existing single type.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described, but the present invention is simultaneously
It is not limited to these embodiments.
Embodiment 1:
Penetration-prevention cast paint is made by the steps:
(1) raw material is configured:
Raw material is configured according to following mass percent:
Fire resistant infilling；The fire resistant infilling is made of the material of following mass fraction: andalusite: 50 parts；α-Al2O3: 5 parts；
White alundum powder: 20 parts；Diatomite: 1 part；Mica powder: 5 parts；Forsterite powder: 10 parts；
Water；The quality of water is the 250% of fire resistant infilling；
Suspending agent；Suspending agent gross mass is the 5% of fire resistant infilling；Wherein suspending agent is by 10 parts of sodium bentonites, 5 parts of poly- second
Alkene pyrrolidone, 3 parts of hydroxypropyl celluloses are constituted；
Polyvinyl acetate emulsion；The polyvinyl acetate emulsion quality is the 3% of fire resistant infilling；
Polyoxyethylated alkyl alcohol；The polyoxyethylated alkyl alcohol quality is the 0.2% of fire resistant infilling；
Sodium tripolyphosphate；The sodium tripolyphosphate quality is the 0.05% of fire resistant infilling；
Sodium pyrophosphate and hydrocarbyl sulfonate；The sodium pyrophosphate and hydrocarbyl sulfonate gross mass are fire resistant infilling
0.12%.
(2) first by sodium bentonite, polyvinylpyrrolidone, hydroxypropyl cellulose, andalusite, α-Al2O3, white alundum powder,
Diatomite, mica powder, forsterite powder, polyvinyl acetate emulsion mix to roll 1 hour in 30 minutes, and water stirring is then added,
And polyoxyethylated alkyl alcohol, sodium tripolyphosphate, sodium pyrophosphate and hydrocarbyl sulfonate are added in whipping process.Mixing time 4
Hour.Obtain penetration-prevention cast paint of the present invention.
Embodiment 2
(1) raw material is configured:
Raw material is configured according to following mass percent:
Fire resistant infilling；The fire resistant infilling is made of the material of following mass fraction: andalusite: 60 parts；α-Al2O3: 8 parts；
White alundum powder: 23 parts；Diatomite: 2 parts；Mica powder: 6 parts；Forsterite powder: 13 parts；
Ethyl alcohol；The quality of ethyl alcohol is the 280% of fire resistant infilling；
Suspending agent；Suspending agent gross mass is the 8% of fire resistant infilling；Wherein suspending agent is by 13 parts of sodium bentonites, 6 parts of poly- second
Alkene pyrrolidone, 4 parts of hydroxypropyl celluloses are constituted；
Polyvinyl acetate emulsion；The polyvinyl acetate emulsion quality is the 4% of fire resistant infilling；
Polyoxyethylated alkyl alcohol；The polyoxyethylated alkyl alcohol quality is the 0.3% of fire resistant infilling；
Sodium tripolyphosphate；The sodium tripolyphosphate quality is the 0.06% of fire resistant infilling；
Sodium pyrophosphate and hydrocarbyl sulfonate；The sodium pyrophosphate and hydrocarbyl sulfonate gross mass are fire resistant infilling
0.18%.
(2) first by sodium bentonite, polyvinylpyrrolidone, hydroxypropyl cellulose, andalusite, α-Al2O3, white alundum powder,
Diatomite, mica powder, forsterite powder, polyvinyl acetate emulsion mix to roll 2 hours in 30 minutes, and water stirring is then added,
And polyoxyethylated alkyl alcohol, sodium tripolyphosphate, sodium pyrophosphate and hydrocarbyl sulfonate are added in whipping process.Mixing time 6
Hour.Obtain penetration-prevention cast paint of the present invention.
Embodiment 3
(1) raw material is configured:
Raw material is configured according to following mass percent:
Fire resistant infilling；The fire resistant infilling is made of the material of following mass fraction: andalusite: 70 parts；α-Al2O3:10
Part；White alundum powder: 25 parts；Diatomite: 3 parts；Mica powder: 7 parts；Forsterite powder: 15 parts；
Water；The quality of water is the 300% of fire resistant infilling；
Suspending agent；Suspending agent gross mass is the 10% of fire resistant infilling；Wherein for suspending agent by 15 parts of sodium bentonites, 7 parts poly-
Vinylpyrrolidone, 5 parts of hydroxypropyl celluloses are constituted；
Polyvinyl acetate emulsion；The polyvinyl acetate emulsion quality is the 5% of fire resistant infilling；
Polyoxyethylated alkyl alcohol；The polyoxyethylated alkyl alcohol quality is the 0.5% of fire resistant infilling；
Sodium tripolyphosphate；The sodium tripolyphosphate quality is the 0.08% of fire resistant infilling；
Sodium pyrophosphate and hydrocarbyl sulfonate；The sodium pyrophosphate and hydrocarbyl sulfonate gross mass are fire resistant infilling
0.22%.
(2) first by sodium bentonite, polyvinylpyrrolidone, hydroxypropyl cellulose, andalusite, α-Al2O3, white alundum powder,
Diatomite, mica powder, forsterite powder, polyvinyl acetate emulsion mix to roll 2 hours in 30 minutes, and water stirring is then added,
And polyoxyethylated alkyl alcohol, sodium tripolyphosphate, sodium pyrophosphate and hydrocarbyl sulfonate are added in whipping process.Mixing time 8
Hour.Obtain penetration-prevention cast paint of the present invention.
It is as follows that the performance for the penetration-prevention cast paint that testing example 1- embodiment 3 obtains obtains result:
By above-mentioned test result it is found that penetration-prevention cast paint pH value of the invention is substantially in neutrality, but it is close
Degree is higher, gas forming amount is small and other work in every indexs are completely up to standard, can substitute the relatively narrow monolithic entity of existing applicable surface completely
The penetration-prevention cast paint of system.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (2)
1. a kind of method for preparing penetration-prevention cast paint as raw material using andalusite comprising step:
S1: raw material configuration raw material: is configured according to following mass percent:
Fire resistant infilling；The fire resistant infilling is made of the material of following mass fraction: andalusite: 50-70 parts；α-Al2O3:5-10
Part；White alundum powder: 20-25 parts；Diatomite: 1-3 parts；Mica powder: 5-7 parts；Forsterite powder: 10-15 parts；
Carrier；The carrier quality is the 250%-300% of fire resistant infilling；
Suspending agent；The suspending agent quality is the 5%-10% of fire resistant infilling；The suspending agent by following mass fraction component
It constitutes: sodium bentonite: 10-15 parts；Polyvinylpyrrolidone: 5-7 parts；Hydroxypropyl cellulose: 3-5 parts；
Binder；The binder quality is the 3%-5% of fire resistant infilling；The binder is polyvinyl acetate emulsion；
Wetting and penetrating agent；The wetting and penetrating agent quality is the 0.2%-0.5% of fire resistant infilling；The wetting and penetrating agent is polyoxy
Vinyl alkyl alcohol ether；
Defoaming agent；The defoaming agent quality is the 0.05%-0.08% of fire resistant infilling；The defoaming agent is sodium tripolyphosphate；
Dispersing agent；The dispersing agent quality is the 0.12%-0.22% of fire resistant infilling；The dispersing agent is sodium pyrophosphate and alkyl
Sulfonate；
S2: it rolls suspending agent, fire resistant infilling and after binder mixing 30-50 minutes, rolls time 1-2 hour；
S3: carrier stirring is added, and wetting and penetrating agent, defoaming agent and dispersing agent are added in whipping process；Mixing time 4-8 is small
When.
2. the method according to claim 1 for preparing penetration-prevention cast paint as raw material using andalusite, feature exist
In: the carrier is water or ethyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610791888.4A CN106424538B (en) | 2016-08-31 | 2016-08-31 | A method of penetration-prevention cast paint is prepared by raw material of andalusite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610791888.4A CN106424538B (en) | 2016-08-31 | 2016-08-31 | A method of penetration-prevention cast paint is prepared by raw material of andalusite |
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| Publication Number | Publication Date |
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| CN106424538A CN106424538A (en) | 2017-02-22 |
| CN106424538B true CN106424538B (en) | 2018-12-11 |
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| CN201610791888.4A Expired - Fee Related CN106424538B (en) | 2016-08-31 | 2016-08-31 | A method of penetration-prevention cast paint is prepared by raw material of andalusite |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107745069B (en) * | 2017-10-27 | 2019-11-08 | 宁波市文旭铸造材料有限公司 | A kind of high temperature resistant cast paint and preparation method |
| WO2020086040A2 (en) * | 2018-10-24 | 2020-04-30 | Cukurova Kimya Endustrisi A.S. | A coating for casting moulds and cores and a production method for the coating |
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| EP0420781A2 (en) * | 1989-09-08 | 1991-04-03 | Bostlan, S.A. | Refractory paint for covering foundry moulds |
| CN101497105A (en) * | 2009-03-12 | 2009-08-05 | 深圳市景鼎现代科技有限公司 | Cast form water borne coating and technique for preparing the same |
| JP2010131665A (en) * | 2008-12-08 | 2010-06-17 | Okazaki Kosanbutsu Kk | Facing material for casting |
| CN104226891A (en) * | 2014-06-16 | 2014-12-24 | 芜湖市鸿坤汽车零部件有限公司 | Flame-retardant alcohol-based casting coating and preparation method thereof |
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| CN105665620A (en) * | 2016-04-08 | 2016-06-15 | 宁夏共享模具有限公司 | Preparation method of water based flow coating for 3D printing sand mold |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110020279A (en) * | 2008-05-28 | 2011-03-02 | 아슈란트-쥐트케미-케른페스트 게엠베하 | Coating compositions for casting moulds and cores for avoiding maculate surfaces |
-
2016
- 2016-08-31 CN CN201610791888.4A patent/CN106424538B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0420781A2 (en) * | 1989-09-08 | 1991-04-03 | Bostlan, S.A. | Refractory paint for covering foundry moulds |
| JP2010131665A (en) * | 2008-12-08 | 2010-06-17 | Okazaki Kosanbutsu Kk | Facing material for casting |
| CN101497105A (en) * | 2009-03-12 | 2009-08-05 | 深圳市景鼎现代科技有限公司 | Cast form water borne coating and technique for preparing the same |
| CN104226891A (en) * | 2014-06-16 | 2014-12-24 | 芜湖市鸿坤汽车零部件有限公司 | Flame-retardant alcohol-based casting coating and preparation method thereof |
| CN104985111A (en) * | 2015-07-30 | 2015-10-21 | 张燕 | Corundum slag-gangue lost foam casting coating and preparation method thereof |
| CN105665620A (en) * | 2016-04-08 | 2016-06-15 | 宁夏共享模具有限公司 | Preparation method of water based flow coating for 3D printing sand mold |
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| CN106424538A (en) | 2017-02-22 |
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Granted publication date: 20181211 Termination date: 20190831 |