CN102310159A - Water-based powder-type dip-coating coating for cast iron cold-box core - Google Patents
Water-based powder-type dip-coating coating for cast iron cold-box core Download PDFInfo
- Publication number
- CN102310159A CN102310159A CN201010583092A CN201010583092A CN102310159A CN 102310159 A CN102310159 A CN 102310159A CN 201010583092 A CN201010583092 A CN 201010583092A CN 201010583092 A CN201010583092 A CN 201010583092A CN 102310159 A CN102310159 A CN 102310159A
- Authority
- CN
- China
- Prior art keywords
- agent
- coating
- powder
- surplus
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Mold Materials And Core Materials (AREA)
Abstract
The invention relates to water-based powder-type coatings and provides a water-based powder-type dip-coating coating for a cast iron cold-box core. The coating comprises the following ingredients in percentage by weight: 1.5%-2.0% of L-bentonite, 2.5%-3.0% of paligorskite, 0.1%-0.3% of hydroxyethyl cellulose, 0.2%-0.4% of flatting agent, 0.7%-1.0% of defoaming agent, 0.01%-0.03% of corrosion preventive, 0.8%-1.2% of binding agent, 0.5%-1.0% of wetting agent, 5%-10% of agglutinant and the rest amount of refractory aggregate, wherein the aggregate consists of quartz powder, pyrophillite powder and graphite powder which respectively has the grain diameter of 200-320 meshes, the quartz powder is 50-65% of the rest amount, the pyrophillite powder is 20-35% of the rest amount, and the graphite powder is 10-20% of the rest amount.
Description
[technical field]
The present invention relates to casting water original washing powder shape coating, mainly propose a kind of cast iron cold-box core water original washing powder shape dip-coating paint.
[background technology]
Main casting cylinder body on the engine, cylinder cap be the general cold-box core assembly that adopts in casting process, and core manufacturing craft is complicated, and required precision is high; The cold-box water based paint is the main body coating that vital part cores such as engine cylinder-body, cylinder cap are used, and the quality of its performance is directly connected to the casting quality quality.According at present domestic and international engine cylinder-body, the cylinder cap condition of production; Producing the water-based dip applicating paint that adopts all is import or joint manufacturer production, and crucial auxiliary material quality used in the coating is good, and the various performance indications of coating are high; Coating like manufacturer production such as Foseco, Asland, HA; After the coating brushing, surface-brightening is smooth, no hole, crackle, stays defectives such as trace.External coating quality is good, but costs an arm and a leg, and homemade coating also has reasonable, and coating quality is unstable, and total quality is bigger with external coating gap.Homemade coating has the deficiency of following several respects;
1, the defoaming effect of coating is poor
Homemade coating all can have bubble more or less in use, have very big, have very little, eliminate foam fully and not be easy to, therefore, antifoaming agent select the defoaming effect that directly has influence on coating for use.
2, the levelability of coating is not good
After the core dip-coating, the surface has significantly stays trace, accumulation, and coating layer thickness is inhomogeneous up and down, therefore, selects which kind of levelling agent for use and the refractory material system that can be complementary with it is very important.
3, the wetability of coating and core is poor
After the core dip-coating, coating and core wetability are poor, and coating can not effectively infiltrate the core surface fast, and on vertical plane, coutinuity of coating is destroyed, and causes coating one's water breaks defective, therefore, selecting for use of wetting agent, also most important to the cold-box water based paint.
[summary of the invention]
To the technological difficulties in the background technology, the invention provides a kind of cast iron cold-box core water original washing powder shape dip-coating paint.
In order to realize that the object of the invention adopts following technical scheme:
A kind of water base powdery dip-coating paint that is used for the cast iron cold-box core, the compositions in weight percentage of said coating:
Lithium bentonite 1.5%～2.0%;
Palygorskite soil 2.5%～3.0%;
Hydroxyethylcellulose 0.1%～0.3%;
Levelling agent 0.2%～0.4%;
Antifoaming agent 0.7%～1.0%;
Anticorrisive agent 0.01%～0.03%;
Binding agent 0.8%～1.2%;
Wetting agent 0.5%～1.0%;
Sintering aid 5%～10%;
Surplus is a refractory aggregate, and refractory aggregate is three kinds of 200～320 purpose silica flours, pyrophyllite powder, graphite powder; Wherein silica flour account for surplus 50～65%, pyrophyllite powder account for surplus 20～35%, graphite powder accounts for 10～20% of surplus.
Lithium bentonite according to the invention, palygorskite soil, hydroxyethylcellulose granularity are 270～320 orders.Levelling agent according to the invention is any one among organosilicon levelling agent BD3033, BD3037, polyurethane rheology modifier WL-728, the Wl-730.
Antifoaming agent according to the invention is any one among the high sticking system antifoaming agent WX-67 of water-based, AR34, A60, silicone defoaming agent BD3030, BD0068, the BD3029HL.
Anticorrisive agent according to the invention is any one in OIT CH-801, potassium sorbate, the Sodium Benzoate.
Binding agent according to the invention is any one of α starch, dextrin.
Wetting agent according to the invention is any one among WR-300, WR-311, the efficient wetting agent WF-216 of anionic, the DISP-5041.
Sintering aid according to the invention is any one in iron oxide, the talcum powder.
It is base-material that water-based dip applicating paint refractory aggregate of the present invention is selected the moderate material of two or more refractoriness for use, has screened multiple high-performance powder material and fluent material, is mixed with a kind of water-based dip applicating paint that is used for the cast iron cold-box.Coating of the present invention is pulverulence before using, and is easy to use, processing performance good, transportation is convenient.When using coating, only need take by weighing a certain amount of powdery paints, take by weighing an amount of water more by a certain percentage and put into stirred vessel and prepare.Advantages such as the coating for preparing has that suspension is good, intensity is high, coating is even, good leveling property, any surface finish, still, flawless.The dope viscosity variation is looked the user and need and be decided different foundry goods employing different coatings thickness.Coating of the present invention can improve the surface quality of foundry goods greatly, improves cast(ing) surface fineness.
[specific embodiment]
The following stated is embodiments of the invention, can explain the present invention in more detail through following embodiment, but the present invention should not be confined to the disclosed content of this embodiment.
Embodiment 1:
The cast iron cold-box core with the powdery water-based dip applicating paint by weight organosilicon levelling agent BD3033 0.2% (0.2kg), lithium bentonite 1.5% (1.5kg), palygorskite soil 3.0% (3.0kg); Silicone defoaming agent BD3030 0.8% (0.8kg), anticorrisive agent OIT CH-801 0.02% (0.02kg), dextrin 1.2% (1.2kg); Hydroxyethylcellulose 0.2% (0.2kg), the efficient wetting agent WF-216 0.8% of anionic (0.8kg), iron oxide 10% (10.0kg); Surplus is 200 order refractory materials; Wherein pyrophillite is 50%, silica flour 35%, graphite 15%.
The preparation process of said coating:
1, with binding agent, suspending agent, levelling agent, anticorrisive agent etc. weigh up in proportion, put into that high speed dispersor stirs, about time 15min, the powder after mixed is referred to as the powder auxiliary agent.
2, off-the-shelf refractory material, sintering aid, powder auxiliary agent are put into roller successively and rolled; Reinforced order rolls about time 15min for adding the graphite powder of light specific gravity, add silica flour, pyrophyllite powder, iron oxide, powder auxiliary agent etc. successively more earlier.
3, after rolling 15min, will dilute good antifoaming agent and wetting agent in proportion and add successively in the roller, go out stone roller after fully rolling and pack for use.
Coating of the present invention in use, with powder and water in 1: the ratio of (1.3 ~ 1.6) is disperseed in high speed dispersor, obtains colloidal coating behind about 30min, and barrelling is used.
Embodiment 2:
The cast iron cold-box core with the powdery water-based dip applicating paint by weight organosilicon levelling agent BD3037 0.4% (0.4kg), lithium bentonite 1.8% (1.8kg) palygorskite soil 2.8% (2.8kg), the high sticking system antifoaming agent AR34 0.7% (0.7kg) of water-based; Preservative sodium benzoate 0.03% (0.03kg), dextrin 1.0% (1.0kg), hydroxyethylcellulose 0.1% (0.1kg); The general wetting agent WR-300 0.5% of water paint (0.5kg); Talcum powder 5% (5.0kg), surplus are 200 order refractory materials, and wherein pyrophillite is 65% of a surplus; Silica flour is 25% of surplus, and graphite is 10% of surplus.
The coating preparation process is ditto said.
Embodiment 3:
The cast iron cold-box core with the powdery water-based dip applicating paint by weight polyurethane rheology modifier WL-728 0.3% (0.3kg); Lithium bentonite 2.0% (2.0kg), palygorskite soil 2.5% (2.5kg), silicone defoaming agent BD3030 1.0% (1.0kg); Potassium sorbate anticorrisive agent 0.01%
aStarch 0.8% (0.8kg); Hydroxyethylcellulose 0.3% (0.3kg), the efficient wetting agent 1.0% of anionic (1.0kg), iron oxide 8% (8.0kg); Surplus is 200 order refractory materials; Wherein pyrophyllite powder is 53% of a surplus, and silica flour is 27% of surplus, and graphite powder is 20% of a surplus.
Embodiment 4
The cast iron cold-box core with the powdery water-based dip applicating paint by weight polyurethane rheology modifier Wl-730 0.2% (0.2kg); Lithium bentonite 2.0% (2.0kg), palygorskite soil 2.5% (2.5kg), silicone defoaming agent BD0068 1.0% (1.0kg); Potassium sorbate anticorrisive agent 0.01%
aStarch 0.8% (0.8kg); Hydroxyethylcellulose 0.3% (0.3kg), the efficient wetting agent 1.0% of anionic (1.0kg), talcum powder 8% (8.0kg); Surplus is 200 order refractory materials; Wherein pyrophyllite powder is 53% of a surplus, and silica flour is 27% of surplus, and graphite powder is 20% of a surplus.
The coating preparation process is ditto said.
Claims (1)
1. cast iron cold-box core water original washing powder shape dip-coating paint, it is characterized in that: the compositions in weight percentage of said coating is: lithium bentonite 1.5%～2.0%; Palygorskite soil 2.5%～3.0%; Hydroxyethylcellulose 0.1%～0.3%; Levelling agent 0.2%～0.4%; Antifoaming agent 0.7%～1.0%; Anticorrisive agent 0.01%～0.03%; Binding agent 0.8%～1.2%; Wetting agent 0.5%～1.0%; Sintering aid 5%～10%; Surplus is a refractory aggregate, and refractory aggregate is three kinds of 200～320 purpose silica flours, pyrophyllite powder, graphite powder; Wherein silica flour account for surplus 50～65%, pyrophyllite powder account for surplus 20～35%, graphite powder accounts for 10～20% of surplus; Wherein, said lithium bentonite, palygorskite soil, hydroxyethylcellulose granularity are 270～320 orders; Said levelling agent is any one among organosilicon levelling agent BD3033, BD3037, polyurethane rheology modifier WL-728, the Wl-730; Said antifoaming agent is any one among the high sticking system antifoaming agent WX-67 of water-based, AR34, A60, silicone defoaming agent BD3030, BD0068, the BD3029HL; Said anticorrisive agent is any one in OIT CH-801, potassium sorbate, the Sodium Benzoate; Said binding agent is any one of α starch, dextrin; Said wetting agent is any one among WR-300, WR-311, the efficient wetting agent WF-216 of anionic, the DISP-5041; Said sintering aid is any one in iron oxide, the talcum powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010583092 CN102310159B (en) | 2010-12-11 | 2010-12-11 | Water-based powder-type dip-coating coating for cast iron cold-box core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010583092 CN102310159B (en) | 2010-12-11 | 2010-12-11 | Water-based powder-type dip-coating coating for cast iron cold-box core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102310159A true CN102310159A (en) | 2012-01-11 |
| CN102310159B CN102310159B (en) | 2013-05-29 |
Family
ID=45423947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010583092 Expired - Fee Related CN102310159B (en) | 2010-12-11 | 2010-12-11 | Water-based powder-type dip-coating coating for cast iron cold-box core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102310159B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013044904A1 (en) * | 2011-09-30 | 2013-04-04 | Ask Chemicals Gmbh | Coating compositions for inorganic casting moulds and cores and use thereof and method for sizing |
| CN103586407A (en) * | 2013-11-27 | 2014-02-19 | 吴江市液铸液压件铸造有限公司 | Casting coating |
| CN103990764A (en) * | 2014-05-20 | 2014-08-20 | 朝阳佳诚耐火材料有限公司 | Casting sand core repairing paste and preparation method thereof |
| CN105170889A (en) * | 2015-09-21 | 2015-12-23 | 蚌埠冠宜型材科技有限公司 | Sudden-heating-resistant casting coating |
| CN106944590A (en) * | 2017-04-28 | 2017-07-14 | 河北新兴铸管有限公司 | A kind of high-temperature resistant coating and preparation method |
| CN107866520A (en) * | 2017-11-15 | 2018-04-03 | 宁夏共享模具有限公司 | A kind of anhydrous water-soluble powder foundry facing and preparation method thereof |
| CN114769503A (en) * | 2022-04-06 | 2022-07-22 | 中国第一汽车股份有限公司 | Coating for sand core of gray iron cylinder body of automobile engine and preparation method of coating |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971419A (en) * | 2018-08-17 | 2018-12-11 | 贵阳灵峰铸造材料有限公司 | Water-based dip-coating paint for 3D printing sand mold and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106945A (en) * | 1976-05-24 | 1978-08-15 | Precision Metalsmiths, Inc. | Investment material |
| CN1880281A (en) * | 2005-06-16 | 2006-12-20 | 章浩龙 | Composite investment casting refractory material and its production method |
| CN1911556A (en) * | 2006-08-25 | 2007-02-14 | 蒋文兰 | Water base casting coating material powder for concave convex rod |
| EP1841556B1 (en) * | 2004-12-16 | 2009-03-11 | Ashland-Südchemie-Kernfest GmbH | Highly insulating and fireproof coating materials for casting moulds |
-
2010
- 2010-12-11 CN CN 201010583092 patent/CN102310159B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106945A (en) * | 1976-05-24 | 1978-08-15 | Precision Metalsmiths, Inc. | Investment material |
| EP1841556B1 (en) * | 2004-12-16 | 2009-03-11 | Ashland-Südchemie-Kernfest GmbH | Highly insulating and fireproof coating materials for casting moulds |
| CN1880281A (en) * | 2005-06-16 | 2006-12-20 | 章浩龙 | Composite investment casting refractory material and its production method |
| CN1911556A (en) * | 2006-08-25 | 2007-02-14 | 蒋文兰 | Water base casting coating material powder for concave convex rod |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013044904A1 (en) * | 2011-09-30 | 2013-04-04 | Ask Chemicals Gmbh | Coating compositions for inorganic casting moulds and cores and use thereof and method for sizing |
| CN103586407A (en) * | 2013-11-27 | 2014-02-19 | 吴江市液铸液压件铸造有限公司 | Casting coating |
| CN103586407B (en) * | 2013-11-27 | 2016-08-17 | 吴江市液铸液压件铸造有限公司 | A kind of cast paint |
| CN103990764A (en) * | 2014-05-20 | 2014-08-20 | 朝阳佳诚耐火材料有限公司 | Casting sand core repairing paste and preparation method thereof |
| CN103990764B (en) * | 2014-05-20 | 2016-03-30 | 朝阳佳诚耐火材料有限公司 | A kind of casting sand core mending paste and preparation method thereof |
| CN105170889A (en) * | 2015-09-21 | 2015-12-23 | 蚌埠冠宜型材科技有限公司 | Sudden-heating-resistant casting coating |
| CN106944590A (en) * | 2017-04-28 | 2017-07-14 | 河北新兴铸管有限公司 | A kind of high-temperature resistant coating and preparation method |
| CN107866520A (en) * | 2017-11-15 | 2018-04-03 | 宁夏共享模具有限公司 | A kind of anhydrous water-soluble powder foundry facing and preparation method thereof |
| CN107866520B (en) * | 2017-11-15 | 2020-04-07 | 共享智能装备有限公司 | Anhydrous water-soluble powder casting coating and preparation method thereof |
| CN114769503A (en) * | 2022-04-06 | 2022-07-22 | 中国第一汽车股份有限公司 | Coating for sand core of gray iron cylinder body of automobile engine and preparation method of coating |
| CN114769503B (en) * | 2022-04-06 | 2023-11-14 | 中国第一汽车股份有限公司 | Coating for gray iron cylinder sand core of automobile engine and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102310159B (en) | 2013-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102310159B (en) | Water-based powder-type dip-coating coating for cast iron cold-box core | |
| CN101704062B (en) | Magnesium aluminium spinel powder alcohol-based coating for heavy section steel castings and preparation method thereof | |
| EP3412376B1 (en) | Curing agent for water glass for casting and manufacturing method and use thereof | |
| CN106040965B (en) | A kind of moulding sand for casting | |
| CN102921889B (en) | Precision investment casting casing-making method suitable for stainless steel casting | |
| CN108655332B (en) | Water-based dip-coating paint for 3D printing sand mold and preparation method thereof | |
| CN103264142A (en) | Zircon power alternative coating for casting and preparation method thereof | |
| CN105945211B (en) | Water base cast paint and preparation method thereof for precoated sand casting | |
| CN103008528A (en) | Simple alcohol-based casting coating and preparation method thereof | |
| CN106270371A (en) | Magnesium alloy sand mold casts with from hard fire-retardant transfer coatings and preparation method thereof | |
| CN106478030A (en) | Mattess cement-base wear-resistant material and preparation method thereof of nickel slag preparation | |
| CN102873267B (en) | Alcohol-based paint for sand casting and preparation method thereof | |
| CN104801658A (en) | Alcohol-base foundry coating for green sand mold and preparation method of alcohol-base foundry coating | |
| CN101921121A (en) | Work layer coating of steel casting tundish | |
| CN103978152B (en) | A kind of centrifugal class roll coating | |
| Yu et al. | Preparation and experiments for a novel kind of foundry core binder made from modified potato starch | |
| CN102371336A (en) | Water-based coating for lost foam casting | |
| CN114309454B (en) | Water-based paint for 3D printing sand core and preparation process thereof | |
| CN102643063A (en) | Slag powder-doped composition for preparing white facing as-cast finish concrete | |
| CN107321909A (en) | A kind of strong wearability full-mold casting coating and preparation method thereof | |
| CN105312487A (en) | Water-based paint for full mold and preparation method and using method of water-based paint | |
| CN103551496B (en) | Anhydrous water-base forsterite powder paint | |
| CN101658897A (en) | Method for preventing surface decarburization of structural steel investment casting | |
| CN101260255A (en) | Wear-resistant rocking bed face putty layer material | |
| CN109437614A (en) | The alkali-activated carbonatite cementitious material and preparation method thereof of the low alkali soluble output of room temperature maintenance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20161211 |