CN105057569A - Water-based paint containing nano-zinc oxide and with enhanced high heat retaining property for evanescent mold casting and preparation method thereof - Google Patents
Water-based paint containing nano-zinc oxide and with enhanced high heat retaining property for evanescent mold casting and preparation method thereof Download PDFInfo
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- CN105057569A CN105057569A CN201510454921.XA CN201510454921A CN105057569A CN 105057569 A CN105057569 A CN 105057569A CN 201510454921 A CN201510454921 A CN 201510454921A CN 105057569 A CN105057569 A CN 105057569A
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Abstract
The invention relates to the technical field of evanescent mold casting, in particular to water-based paint containing nano-zinc oxide and with enhanced high heat retaining property for evanescent mold casting and a preparation method thereof. Pyrophyllite powder and quartz sand with different grain sizes are used as refractory aggregates of the water-based paint, so that the air permeability of a coating is good, and the coating is even and smooth. Mixed slurry of nano-zinc oxide, aluminum-magnesium silicate and sodium carboxymethylcellulose is used as a suspending agent which enables the water-based paint to be good in suspension property and thixotropy, and the heat retaining property of the coating is further improved. The air permeability of a coating surface can be improved after microcrystalline cellulose disperses in the coating. The paint coating prepared through the method is firm, insulated, compact, permeable and easy to clean; the liquid metal is not polluted and the surface quality of a casting is improved effectively.
Description
Technical field
The present invention relates to Technology of EPC field, be specifically related to a kind of high heat insulating ability Water-based coating for lost foam casting containing nano zine oxide enhancing and preparation method thereof.
Background technology
Refractory Coating for Lost Foam Casting refers to one deck handtailor coating being coated in apperance outer surface in lost foam casting process, it plays critical effect in casting process, because apperance is made up of foamed plastics, the character such as gas permeability, strength of coating, rheological characteristic of coating all will produce vital impact to cast article, the lost foam paint of function admirable should meet: (1) can assist the intensity and rigidity that improve foam plastics mould, prevents apperance from destroying and distortion; (2) there is buffer action, molten metal and model are separated, prevent molten metal from infiltrating in dry sand, prevent cast(ing) surface from forming defect; (3) permeation functions, gets rid of apperance in time and decomposes the gas or liquid that produce, prevent foundry goods from occurring pore, carbon black defect etc.; (4) good sintering fissility, anti-sand viscosity, anti-metal liquid aggressivity etc. will be had; (5) characteristic such as good wetability, being coated with property, the feature of environmental protection, heat endurance, protection against the tide will be had.
Lost foam paint composition mainly comprises the compositions such as refractory aggregate, bonding agent, solvent, suspending agent and various additives, the adhesive properties used by it is divided and is mainly divided into several classes such as water based paint, alcohol-base paint, cold coating, wherein water based paint because cost lower apply in actual production comparatively extensive, but water based paint exists when coating is cleared up easily defeated and dispersed, easy scab, and the serviceability of most of product still existing defects, do not reach foregoing effect.
Summary of the invention
The object of the invention is to, prepare a kind of high heat insulating ability Water-based coating for lost foam casting strengthened containing nano zine oxide, have high strength, highly-breathable to obtain, be easy to peel off the apperance coating of clearing up, to achieve these goals, the technical solution used in the present invention is as follows:
A kind of high heat insulating ability Water-based coating for lost foam casting strengthened containing nano zine oxide, it is characterized in that, this coating is made up of the raw material of following weight portion: aluminium-magnesium silicate 1-2,200-250 order pyrophyllite powder 20-25,180-200 order quartz sand 40-50, nano zine oxide 2-3, shitosan 0.01-0.02, microcrystalline cellulose 0.1-0.2, OP-100.02-0.03, polyquaternium 0.001-0.002, defoamer 0.01-0.02, white glue with vinyl 2-3, sodium carboxymethylcellulose 0.2-0.3, soft water 30-35.
The preparation method of described a kind of high heat insulating ability Water-based coating for lost foam casting containing nano zine oxide enhancing, it is characterized in that, described preparation method is:
(1) first OP-10, sodium carboxymethylcellulose, shitosan are dropped in soft water, be stirred to after dissolving completely, drop into nano zine oxide, ultrasonic high-speed stirred makes it dispersed in the solution, add aluminium-magnesium silicate, microcrystalline cellulose more subsequently, be uniformly mixed grinding 40-50min, gained mixed slurry is for subsequent use;
(2) drop in agitator together with the slurry prepared by pyrophyllite powder, quartz sand and the step (1) of 15-20 weight portion, after high-speed stirred dispersion 30-40min, add other leftover materials all again, and add soft water according to required slurry density, continue dispersed with stirring 40-50min again, to obtain final product.
The pyrophyllite powder that coating of the present invention there are differences using particle diameter, quartz sand are as refractory aggregate, make the gas permeability of coating excellent, coating expansion is level and smooth, using nano zine oxide, aluminium-magnesium silicate, sodium carboxymethylcellulose mixed slurry as suspending agent, coating is made to have good suspension and thixotropy, the heat insulating ability of coating can also be strengthened, the gas permeability of coating surface after microcrystalline cellulose dispersion in the coating, can be improved; The firm insulation of the paint coatings that this invention prepares, compacts ventilative, is easy to cleaning, does not pollute molten metal, effectively improve surface quality of continuous castings.
Detailed description of the invention
Embodiment
The coating of the present embodiment is made up of the raw material of following weight portion: aluminium-magnesium silicate 1.5,250 order pyrophyllite powder 22,180 order quartz sand 45, nano zine oxide 2, shitosan 0.01, microcrystalline cellulose 0.1, OP-100.02, polyquaternium 0.002, defoamer 0.01, white glue with vinyl 2.5, sodium carboxymethylcellulose 0.3, soft water 30.
The preparation method of this coating is:
(1) first OP-10, sodium carboxymethylcellulose, shitosan are dropped in soft water, be stirred to after dissolving completely, drop into nano zine oxide, ultrasonic high-speed stirred makes it dispersed in the solution, add aluminium-magnesium silicate, microcrystalline cellulose more subsequently, be uniformly mixed grinding 40min, gained mixed slurry is for subsequent use;
(2) drop in agitator together with the slurry prepared by pyrophyllite powder, quartz sand and the step (1) of 20 weight portions, after high-speed stirred dispersion 35min, add other leftover materials all again, and add appropriate soft water, continue dispersed with stirring 45min, adjusting coating density is 60 Baume degrees, to obtain final product.
Coating property test result obtained by the present embodiment is:
| Test item | Testing result |
| Strength of coating (0.8mm thick coating) | 4.28×10 5Pa |
| Gas permeability (0.8mm thick coating × 1200 DEG C) | 4.34cm 4·(g·min) -1 |
| Suspension (24h) | 96％ |
| Once be coated with thickness δ | 0.3mm |
Claims (2)
1. the high heat insulating ability Water-based coating for lost foam casting strengthened containing nano zine oxide, it is characterized in that, this coating is made up of the raw material of following weight portion: aluminium-magnesium silicate 1-2,200-250 order pyrophyllite powder 20-25,180-200 order quartz sand 40-50, nano zine oxide 2-3, shitosan 0.01-0.02, microcrystalline cellulose 0.1-0.2, OP-100.02-0.03, polyquaternium 0.001-0.002, defoamer 0.01-0.02, white glue with vinyl 2-3, sodium carboxymethylcellulose 0.2-0.3, soft water 30-35.
2. a kind of preparation method of high heat insulating ability Water-based coating for lost foam casting strengthened containing nano zine oxide as claimed in claim 1, it is characterized in that, described preparation method is:
(1) first OP-10, sodium carboxymethylcellulose, shitosan are dropped in soft water, be stirred to after dissolving completely, drop into nano zine oxide, ultrasonic high-speed stirred makes it dispersed in the solution, add aluminium-magnesium silicate, microcrystalline cellulose more subsequently, be uniformly mixed grinding 40-50min, gained mixed slurry is for subsequent use;
(2) drop in agitator together with the slurry prepared by pyrophyllite powder, quartz sand and the step (1) of 15-20 weight portion, after high-speed stirred dispersion 30-40min, then add other leftover materials all, and add soft water according to required slurry density, continue dispersed with stirring 40-50min again, to obtain final product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510454921.XA CN105057569A (en) | 2015-07-27 | 2015-07-27 | Water-based paint containing nano-zinc oxide and with enhanced high heat retaining property for evanescent mold casting and preparation method thereof |
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| CN201510454921.XA CN105057569A (en) | 2015-07-27 | 2015-07-27 | Water-based paint containing nano-zinc oxide and with enhanced high heat retaining property for evanescent mold casting and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562593A (en) * | 2016-01-11 | 2016-05-11 | 明光市留香泵业有限公司 | Low-carbon-residue lost foam casting water-based paint with nano calcium carbonate enhancement function and preparation method of water-based paint |
| CN105728640A (en) * | 2016-04-27 | 2016-07-06 | 霍邱县鑫瑞金属制品有限责任公司 | High-strength and high-toughness water-based lost foam coating for magnesium alloy casting and preparation method thereof |
| CN105750486A (en) * | 2016-04-27 | 2016-07-13 | 霍邱县鑫瑞金属制品有限责任公司 | Water-based lost foam casting coating with active carbon nanoparticles for magnesium alloy casting and preparation method thereof |
| CN105983648A (en) * | 2016-01-11 | 2016-10-05 | 明光市留香泵业有限公司 | Magnesium borate whisker-reinforced and low-carbon-residue water-based coating for lost foam casting and preparation method of coating |
| CN105983651A (en) * | 2016-01-11 | 2016-10-05 | 明光市留香泵业有限公司 | Nano calcium metasilicate containing low-carbon-residue low-heat-conduction water-based paint for lost foam casting and preparation method thereof |
| CN105983649A (en) * | 2016-01-11 | 2016-10-05 | 明光市留香泵业有限公司 | Ceramic micro powder containing reinforced low-carbon-residue high-breathability water-based paint for lost foam casting and preparation method thereof |
| CN106391994A (en) * | 2016-04-27 | 2017-02-15 | 霍邱县鑫瑞金属制品有限责任公司 | High-bonding force water-based EPC paint for magnesium alloy casting and preparation method thereof |
| CN110625061A (en) * | 2019-10-11 | 2019-12-31 | 柳州市顺昇机械有限公司 | Multifunctional coating for casting and preparation method thereof |
| CN113198971A (en) * | 2021-05-18 | 2021-08-03 | 松山湖材料实验室 | Suspending agent, application thereof and coating |
| CN113231598A (en) * | 2021-05-18 | 2021-08-10 | 松山湖材料实验室 | Casting coating and preparation method thereof |
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| JPH0413437A (en) * | 1990-05-07 | 1992-01-17 | Kawasaki Steel Corp | Molding material for casting high melting point active metal |
| CN102366816A (en) * | 2011-10-11 | 2012-03-07 | 许立新 | Preparation method of water-based coating for lost foam casting |
| CN103056289A (en) * | 2013-01-25 | 2013-04-24 | 马鞍山市华达冶金机械有限公司 | Casting paint for high-chromium cast iron and preparation method thereof |
| CN103331410A (en) * | 2013-01-29 | 2013-10-02 | 南京市溧水中山铸造有限公司 | Novel coating material with high suspension and low concentration, coating method thereof and applications thereof |
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Patent Citations (4)
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| JPH0413437A (en) * | 1990-05-07 | 1992-01-17 | Kawasaki Steel Corp | Molding material for casting high melting point active metal |
| CN102366816A (en) * | 2011-10-11 | 2012-03-07 | 许立新 | Preparation method of water-based coating for lost foam casting |
| CN103056289A (en) * | 2013-01-25 | 2013-04-24 | 马鞍山市华达冶金机械有限公司 | Casting paint for high-chromium cast iron and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562593A (en) * | 2016-01-11 | 2016-05-11 | 明光市留香泵业有限公司 | Low-carbon-residue lost foam casting water-based paint with nano calcium carbonate enhancement function and preparation method of water-based paint |
| CN105983648A (en) * | 2016-01-11 | 2016-10-05 | 明光市留香泵业有限公司 | Magnesium borate whisker-reinforced and low-carbon-residue water-based coating for lost foam casting and preparation method of coating |
| CN105983651A (en) * | 2016-01-11 | 2016-10-05 | 明光市留香泵业有限公司 | Nano calcium metasilicate containing low-carbon-residue low-heat-conduction water-based paint for lost foam casting and preparation method thereof |
| CN105983649A (en) * | 2016-01-11 | 2016-10-05 | 明光市留香泵业有限公司 | Ceramic micro powder containing reinforced low-carbon-residue high-breathability water-based paint for lost foam casting and preparation method thereof |
| CN105728640A (en) * | 2016-04-27 | 2016-07-06 | 霍邱县鑫瑞金属制品有限责任公司 | High-strength and high-toughness water-based lost foam coating for magnesium alloy casting and preparation method thereof |
| CN105750486A (en) * | 2016-04-27 | 2016-07-13 | 霍邱县鑫瑞金属制品有限责任公司 | Water-based lost foam casting coating with active carbon nanoparticles for magnesium alloy casting and preparation method thereof |
| CN106391994A (en) * | 2016-04-27 | 2017-02-15 | 霍邱县鑫瑞金属制品有限责任公司 | High-bonding force water-based EPC paint for magnesium alloy casting and preparation method thereof |
| CN110625061A (en) * | 2019-10-11 | 2019-12-31 | 柳州市顺昇机械有限公司 | Multifunctional coating for casting and preparation method thereof |
| CN110625061B (en) * | 2019-10-11 | 2020-10-02 | 柳州市顺昇机械有限公司 | Multifunctional coating for casting and preparation method thereof |
| CN113198971A (en) * | 2021-05-18 | 2021-08-03 | 松山湖材料实验室 | Suspending agent, application thereof and coating |
| CN113231598A (en) * | 2021-05-18 | 2021-08-10 | 松山湖材料实验室 | Casting coating and preparation method thereof |
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Application publication date: 20151118 |
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