CN102430702A - Centrifugal cast pipe metal type paint - Google Patents
Centrifugal cast pipe metal type paint Download PDFInfo
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- CN102430702A CN102430702A CN2011103925373A CN201110392537A CN102430702A CN 102430702 A CN102430702 A CN 102430702A CN 2011103925373 A CN2011103925373 A CN 2011103925373A CN 201110392537 A CN201110392537 A CN 201110392537A CN 102430702 A CN102430702 A CN 102430702A
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Abstract
The invention discloses centrifugal cast pipe metal type paint, which consists of the following ingredients in part by weight: 15 to 20 parts of zircon powder (containing 65 percent of ZrO2), 10 to 15 parts of diatomite, 10 to 15 parts of bauxite, 5 to 10 parts of talcum powder, 5 to 10 parts of alundum powder, 10 to 20 parts of quartz powder, 3.5 to 4.5 parts of sodium bentonite, 1 to 2 parts of silica sol, 0.5 to 1 part of water glass, 0.5 to 1 part of ferric oxide powder, 0.6 to 0.8 parts of titanium powder, 1.5 to 2.5 parts of sodium alginate, 0.6 to 1.2 parts of aqueous polyurethane, 0.3 to 0.5 parts of polyving akohol, 2 to 3 parts of watersoluble acrylic resin, 0.4 to 0.6 parts of butyl cellosolve, 0.2 to 0.3 parts of tributyl phosphate, 0.5 to 0.8 parts of ethylene glycol, 0.15 to 0.3 parts of isothiazolinone and 30 to 35 parts of water.
Description
Technical field
The present invention relates to casting field, particularly the centrifugal casting field.
Background technology
During spun cast pipe, be coated with last layer coating equably at the metal mold inner surface, its objective is for can be when motlten metal injects metal mold, its inner surface is because the effect of coating, forms to have adiabatic and the good heat insulation layer of release performance.So just require coating to have that adhesiveness is strong, auxilliary looses that property is good, elevated temperature strength is high, the high temperature crack resistance is good, gas content is low and require the collapsibility of the coating in the release back of foundry goods good; Ability guarantee fund genotype surface and cast(ing) surface do not have coating remaining; Can coating bring into play the fire-resistant buffer action of protection metal mold effectively; With the quality that directly influences spun cast pipe, therefore, a kind of good coating must possess above-mentioned performance.
The kind of metal mold coating is a lot, is based on mainly that paint adhesion agent and resistant to elevated temperatures inserts distinguish.Binding agent commonly used has syrup, waterglass, high polymer binders such as also useful resin, polyvinyl alcohol.Resistant to elevated temperatures inserts is black lead powder, spraying carbon black, coke powder, high-alumina fly etc.Syrup coating composition commonly used is: black lead powder＞30%, spraying carbon black＞45%, syrup＞15%.After these material mixing, be placed in the gyratory shaker, add suitable quantity of water, fully stirred 1.5-2 hour.Coating density requires between 1.2-1.3g/cm3.Sodium silicate binder paint ingredient commonly used is: carbon black 80%, waterglass 20% and an amount of moisture, density 1.1-1.2g/cm3.Polyvinyl alcohol adhesive paint ingredient commonly used is: high-alumina fly that 200 orders are above and 300-400g polyvinyl alcohol and an amount of moisture system of mixing form.When being the metal mold repeated use, the advantage of using syrup to make binding agent clears up easily.Shortcoming is that syrup is to process with grain, and the temperature to metal mold has certain requirement when using, and mold temperature too prepared paint is not coated with, and the moisture in the coating is not volatile, causes gas hole defect easily; Mold temperature is too high; Syrup is burnt easily, makes coating lose adhesive property, and molten metal washes out dope layer easily during cast; Metal mold is lost protective effect; Make roller surface be prone to many tiny pin holes, also can produce the phenomenon that metal mold and roll molten metal adhere to each other sometimes, cause scrapping of roll and casting mold when serious.The advantage of waterglass coating is that dry strength is big, and the metal mold temperature undergoes no deterioration when high and burns.Shortcoming is to use back cleaning difficulty.Paint thickness can not be coated with thick, only can reach 0.3-0.5mm, otherwise easy to crack peeling off, so casting mold is shorter service life.The polyvinyl alcohol coating advantage is that dry strength is big, can with multiple high temperature resistant filler mixed preparing, paint thickness can thicken to 2-5mm, under the molten metal high temperature action, can produce carbonization light film, makes roller surface bright and clean.Shortcoming is that the mixed system time is long, will ceaselessly stir during spraying, and to prevent the coating layering and precipitating, the difficult control of coating layer thickness evenly.
Chinese invention patent CN101116894 discloses a kind of method for preparing metal type casting coating material; Attapulgite clay 0.3% is mixed 10 parts of water milling 2 hours in colloid mill; Process first liquid; Again talcum powder 6%, diatomite 2%, sodium alkyl sulfonate 0.2% and boric acid 3% are put into colloid mill, added first liquid, waterglass 3% and water 85.5% milling respectively 2 hours, get final product metal-type casting coating.This invention has stronger heat insulating ability, anti-flammability, caking property and coating, has good suspension property, is difficult for deposition in the use, helps reducing the hot cracking tendency of foundry goods.But there is coating preparation trouble in this invention, and when being used for spun cast pipe, and dope layer easy to crackly waits deficiency with peeling off because of intensity is low.
Chinese invention patent CN1966180 also discloses a kind of heavy castings with coating and manufacturing approach thereof; This coating is the alcohol zircon flour cast paint, and composition has zirconium English powder 62～75%, lithium bentonite 1～3%, deionized water 1～3%, modification Magnesiumaluminumsilicate 1～3%, nanoscale clay 0.15～0.8%, alundum (Al 0.02～0.08%, water-soluble polyester resin 0.2～1.2%, polyvinyl butyral resin (PVB) 0.1～0.8%, rosin 0.6～3%, industrial alcohol 15～25%, isopropyl alcohol 1～5%, heavy aromatic solvent oil 150#1～5%.It is good that this invention coating has fire resistance, and anti-stick sand ability is strong, characteristics such as suspension, brushability, levelability excellence; Be suitable for heavy castings production, but this coating complicated process of preparation is used troublesome poeration; When being used for spun cast pipe, under centrifugal action, dope layer is easy to crack to be peeled off.
Summary of the invention
To the deficiency of prior art, one of the object of the invention is to provide a kind of spun cast pipe metal mold to use coating.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is following:
A kind of spun cast pipe metal mold is used coating, and said coating is made up of following component in weight portion: zirconium English powder (contains 65%ZrO
2) 15-20 part, diatomite 10-15 part, bauxite 10-15 part, talcum powder 5-10 part; Schmigel 5-10 part, silica flour 10-20 part, sodium bentonite 3.5-4.5 part; Ludox 1-2 part; Waterglass 0.5-1 part, brown iron oxide 0.5-1 part, titanium valve 0.6-0.8 part; Sodium alginate 1.5-2.5 part, aqueous polyurethane 0.6-1.2 part, polyvinyl alcohol 0.3-0.5 part, water soluble acrylic resin 2-3 part, butyl glycol ether 0.4-0.6 part, tributyl phosphate 0.2-0.3 part, ethylene glycol 0.5-0.8 part, OIT 0.15-0.3 part and water 30-35 part.
Preferably, said coating is made up of following component in weight portion: zirconium English powder (contains 65%ZrO
2) 12 parts of 18 parts, diatomite, 12 parts of bauxites, 8 parts of talcum powder; 8 parts of schmigels, 15 parts of silica flours, 4 parts of sodium bentonites; 1.5 parts of Ludox, 0.7 part of waterglass, 0.7 part of brown iron oxide; 0.7 part of titanium valve, 2 parts of sodium alginates, 33 parts in 0.9 part of aqueous polyurethane, 0.4 part of polyvinyl alcohol, 2.5 parts of water soluble acrylic resins, 0.5 part of butyl glycol ether, 0.25 part of tributyl phosphate, 0.65 part of ethylene glycol, 0.22 part of OIT and water.
Coating of the present invention can adopt kolleroang to prepare with conventional method.
The beneficial effect of the coating of the present invention's preparation is:
1) choose multiple aggregate materials and carry out compositely, reached unexpected technique effect, make that the fire resistance of coating is good, elevated temperature strength is high, and the high temperature crack resistance improves, in the casting process not easy to crack with peel off.
2) on the bases of a large amount of experiments, selected suitable suspending agent, bonding agent and auxiliary material, made its technique effect reach collaborative, made suspension, the good leveling property of coating, release performance raising simultaneously with aggregate.
The specific embodiment
Embodiment one
A kind of spun cast pipe metal mold is used coating, and said coating is made up of following component in weight portion: zirconium English powder (contains 65%ZrO
2) 15 parts of 15 parts, diatomite, 10 parts of bauxites, 10 parts of talcum powder; 5 parts of schmigels, 20 parts of silica flours, 3.5 parts of sodium bentonites; 2 parts of Ludox, 0.5 part of waterglass, 1 part of brown iron oxide; 0.6 part of titanium valve, 2.5 parts of sodium alginates, 35 parts in 0.6 part of aqueous polyurethane, 0.5 part of polyvinyl alcohol, 2 parts of water soluble acrylic resins, 0.6 part of butyl glycol ether, 0.2 part of tributyl phosphate, 0.8 part of ethylene glycol, 0.15 part of OIT and water.
Embodiment two
A kind of spun cast pipe metal mold is used coating, and said coating is made up of following component in weight portion: zirconium English powder (contains 65%ZrO
2) 10 parts of 20 parts, diatomite, 15 parts of bauxites, 5 parts of talcum powder; 10 parts of schmigels, 10 parts of silica flours, 4.5 parts of sodium bentonites; 1 part of Ludox, 1 part of waterglass, 0.5 part of brown iron oxide; 0.8 part of titanium valve, 1.5 parts of sodium alginates, 30 parts in 1.2 parts of aqueous polyurethanes, 0.3 part of polyvinyl alcohol, 3 parts of water soluble acrylic resins, 0.4 part of butyl glycol ether, 0.3 part of tributyl phosphate, 0.5 part of ethylene glycol, 0.3 part of OIT and water.
Embodiment three
A kind of spun cast pipe metal mold is used coating, and said coating is made up of following component in weight portion: zirconium English powder (contains 65%ZrO
2) 12 parts of 18 parts, diatomite, 12 parts of bauxites, 8 parts of talcum powder; 8 parts of schmigels, 15 parts of silica flours, 4 parts of sodium bentonites; 1.5 parts of Ludox, 0.7 part of waterglass, 0.7 part of brown iron oxide; 0.7 part of titanium valve, 2 parts of sodium alginates, 33 parts in 0.9 part of aqueous polyurethane, 0.4 part of polyvinyl alcohol, 2.5 parts of water soluble acrylic resins, 0.5 part of butyl glycol ether, 0.25 part of tributyl phosphate, 0.65 part of ethylene glycol, 0.22 part of OIT and water.
Applicant's statement; The present invention explains detailed process equipment of the present invention and technological process through the foregoing description; But the present invention is not limited to above-mentioned detailed process equipment and technological process, does not mean that promptly the present invention must rely on above-mentioned detailed process equipment and technological process could be implemented.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of each raw material of product of the present invention and auxiliary element, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.
Claims (2)
1. a spun cast pipe metal mold is used coating, it is characterized in that, said coating is made up of following component in weight portion: zirconium English powder (contains 65%ZrO
2) 15-20 part, diatomite 10-15 part, bauxite 10-15 part, talcum powder 5-10 part; Schmigel 5-10 part, silica flour 10-20 part, sodium bentonite 3.5-4.5 part; Ludox 1-2 part; Waterglass 0.5-1 part, brown iron oxide 0.5-1 part, titanium valve 0.6-0.8 part; Sodium alginate 1.5-2.5 part, aqueous polyurethane 0.6-1.2 part, polyvinyl alcohol 0.3-0.5 part, water soluble acrylic resin 2-3 part, butyl glycol ether 0.4-0.6 part, tributyl phosphate 0.2-0.3 part, ethylene glycol 0.5-0.8 part, OIT 0.15-0.3 part and water 30-35 part.
2. a kind of spun cast pipe metal mold as claimed in claim 1 is used coating, it is characterized in that said coating is made up of following component in weight portion: zirconium English powder (contains 65%ZrO
2) 12 parts of 18 parts, diatomite, 12 parts of bauxites, 8 parts of talcum powder; 8 parts of schmigels, 15 parts of silica flours, 4 parts of sodium bentonites; 1.5 parts of Ludox, 0.7 part of waterglass, 0.7 part of brown iron oxide; 0.7 part of titanium valve, 2 parts of sodium alginates, 33 parts in 0.9 part of aqueous polyurethane, 0.4 part of polyvinyl alcohol, 2.5 parts of water soluble acrylic resins, 0.5 part of butyl glycol ether, 0.25 part of tributyl phosphate, 0.65 part of ethylene glycol, 0.22 part of OIT and water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110392537 CN102430702B (en) | 2011-11-29 | 2011-11-29 | Centrifugal cast pipe metal type paint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110392537 CN102430702B (en) | 2011-11-29 | 2011-11-29 | Centrifugal cast pipe metal type paint |
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| CN102430702A true CN102430702A (en) | 2012-05-02 |
| CN102430702B CN102430702B (en) | 2013-07-24 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586404A (en) * | 2013-10-30 | 2014-02-19 | 吴江市液铸液压件铸造有限公司 | Heat-insulating coating for casting |
| CN103949579A (en) * | 2014-04-01 | 2014-07-30 | 西安工程大学 | Alcohol radical red bayberry-shaped centrifugation radiant tube casting paint and preparation method thereof |
| CN104226894A (en) * | 2014-08-29 | 2014-12-24 | 吴江市液铸液压件铸造有限公司 | High-temperature-resistant casting coating and preparation method thereof |
| CN104399869A (en) * | 2014-11-08 | 2015-03-11 | 芜湖市鸿坤汽车零部件有限公司 | Alcohol-based mica/montmorillonite composite casting paint and manufacturing method thereof |
| CN104439048A (en) * | 2014-11-26 | 2015-03-25 | 李铭梁 | Diatomite casting coating and preparation method thereof |
| CN105964899A (en) * | 2016-07-20 | 2016-09-28 | 张耀忠 | Water-based casting coating |
| CN107470552A (en) * | 2017-08-28 | 2017-12-15 | 安徽省含山县潮林铸管厂（普通合伙） | A kind of preparation method of centrifugal casting coating |
| CN107685130A (en) * | 2017-08-31 | 2018-02-13 | 安徽信息工程学院 | The water base environmental protection coating material of casting mold |
| CN108453214A (en) * | 2018-02-12 | 2018-08-28 | 陕西盛华冶化有限公司 | A kind of saggar demoulding backing material formula and its application method |
| CN112338135A (en) * | 2020-10-20 | 2021-02-09 | 湖南塑源特科技有限公司 | Metal mold coating for casting and preparation method thereof |
| CN114789235A (en) * | 2022-04-28 | 2022-07-26 | 靖江市黎明铸造材料厂 | Centrifugal cast pipe coating for producing smooth surface and using method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586404A (en) * | 2013-10-30 | 2014-02-19 | 吴江市液铸液压件铸造有限公司 | Heat-insulating coating for casting |
| CN103949579A (en) * | 2014-04-01 | 2014-07-30 | 西安工程大学 | Alcohol radical red bayberry-shaped centrifugation radiant tube casting paint and preparation method thereof |
| CN103949579B (en) * | 2014-04-01 | 2016-07-27 | 西安工程大学 | A kind of alcohol radical strawberry-like centrifugal radiation pipe cast tube coating and preparation method thereof |
| CN104226894B (en) * | 2014-08-29 | 2016-03-23 | 吴江市液铸液压件铸造有限公司 | A kind of high temperature resistant cast paint and preparation method thereof |
| CN104226894A (en) * | 2014-08-29 | 2014-12-24 | 吴江市液铸液压件铸造有限公司 | High-temperature-resistant casting coating and preparation method thereof |
| CN104399869A (en) * | 2014-11-08 | 2015-03-11 | 芜湖市鸿坤汽车零部件有限公司 | Alcohol-based mica/montmorillonite composite casting paint and manufacturing method thereof |
| CN104439048A (en) * | 2014-11-26 | 2015-03-25 | 李铭梁 | Diatomite casting coating and preparation method thereof |
| CN105964899A (en) * | 2016-07-20 | 2016-09-28 | 张耀忠 | Water-based casting coating |
| CN107470552A (en) * | 2017-08-28 | 2017-12-15 | 安徽省含山县潮林铸管厂（普通合伙） | A kind of preparation method of centrifugal casting coating |
| CN107685130A (en) * | 2017-08-31 | 2018-02-13 | 安徽信息工程学院 | The water base environmental protection coating material of casting mold |
| CN108453214A (en) * | 2018-02-12 | 2018-08-28 | 陕西盛华冶化有限公司 | A kind of saggar demoulding backing material formula and its application method |
| CN108453214B (en) * | 2018-02-12 | 2019-12-13 | 陕西盛华冶化有限公司 | Formulation of bottom material for demoulding container and its application method |
| CN112338135A (en) * | 2020-10-20 | 2021-02-09 | 湖南塑源特科技有限公司 | Metal mold coating for casting and preparation method thereof |
| CN114789235A (en) * | 2022-04-28 | 2022-07-26 | 靖江市黎明铸造材料厂 | Centrifugal cast pipe coating for producing smooth surface and using method thereof |
| CN114789235B (en) * | 2022-04-28 | 2023-10-24 | 靖江市黎明铸造材料厂 | Centrifugal cast tube coating for producing smooth surface and application method thereof |
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