CN103100653A - Method for preparing high-gas-permeability solid-mold casting coating material - Google Patents
Method for preparing high-gas-permeability solid-mold casting coating material Download PDFInfo
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- CN103100653A CN103100653A CN2012105308931A CN201210530893A CN103100653A CN 103100653 A CN103100653 A CN 103100653A CN 2012105308931 A CN2012105308931 A CN 2012105308931A CN 201210530893 A CN201210530893 A CN 201210530893A CN 103100653 A CN103100653 A CN 103100653A
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- 238000000576 coating method Methods 0.000 title claims abstract description 30
- 239000011248 coating agent Substances 0.000 title claims abstract description 29
- 238000005266 casting Methods 0.000 title abstract description 9
- 239000000463 material Substances 0.000 title abstract description 6
- 238000000034 method Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 15
- 229960000892 attapulgite Drugs 0.000 claims abstract description 11
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 8
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims abstract description 7
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims abstract description 7
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims abstract description 7
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 6
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims abstract description 4
- 235000010234 sodium benzoate Nutrition 0.000 claims abstract description 4
- 239000004299 sodium benzoate Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 238000010115 full-mold casting Methods 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 9
- 238000012986 modification Methods 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 6
- 229940067573 brown iron oxide Drugs 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 229920005610 lignin Polymers 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000035699 permeability Effects 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 2
- FOGYNLXERPKEGN-UHFFFAOYSA-N 3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfopropyl)phenoxy]propane-1-sulfonic acid Chemical compound COC1=CC=CC(CC(CS(O)(=O)=O)OC=2C(=CC(CCCS(O)(=O)=O)=CC=2)OC)=C1O FOGYNLXERPKEGN-UHFFFAOYSA-N 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 239000003973 paint Substances 0.000 description 4
- 230000001680 brushing effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229920006248 expandable polystyrene Polymers 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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- Mold Materials And Core Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a method for preparing a high-gas-permeability solid-mold casting coating material. According to the method, the high-gas-permeability solid-mold casting coating material is prepared from the following ingredients in parts by weight: 56-70 parts of bauxite chamotte, 5-7 parts of plant ash, 10-15 parts of light calcium carbonate, 10-15 parts of graphite powder, 4-6 parts of nano attapulgite, 1-2 parts of lignosulfonic acid, 2-3 parts of polyvinyl alcohol, 0.8-1.5 parts of sodium carboxymethyl cellulose, 0.4-0.6 part of sodium benzoate, 1-2 parts of nanoscale ceramic powder, 0.5-0.8 part of ferric oxide powder and 525-535 parts of water. The solid-mold casting coating material prepared by the method has strong wear resistance, high adhesiveness and excellent gas permeability and quick-drying performance in both high-temperature environments and low-temperature environments, thereby being capable of meeting the production requirements of large-sized cast parts.
Description
Technical field
The present invention relates to casting field, particularly a kind of preparation method of highly-breathable full-mold casting coating.
Background technology
The disperse system that full-mold casting coating is comprised of the material of multiple different in kind, its composition mainly comprises the compositions such as refractory material, polyvinyl alcohol, carrier, nano-attapulgite and special additive, needs coating good processing performance, service behaviour, quality stability are arranged and apply reappearance.Full-mold casting coating is coated in the outer surface of foamed polystyrene pattern, could the moulding cast after the coating drying.Foamed plastics is airtight, and heat distortion temperature low (approximately 70 ℃ of left and right) is poor to the affinity of water; Liquid residue after foamed plastics melted by heating, gasification is many, and gas forming amount is large, if these gases and liquid residue can not in time be discharged, foundry goods will produce the carbon defects such as gas, carburetting, Surface Wrinkle in iron.These characteristics have determined that full-mold paint should possess following performance requirement, and namely coating should have good wetability and being coated with property, good high-temperature resistant property and elevated temperature strength and good hot permeability.
The resistance to elevated temperatures of the cast paint of prior art is relatively poor, can only be fit to shorter finding of high-temperature process time (in 200kg) and produce, and can not adapt to for the production of heavy castings (in 20 tons) and small lot handwork.Have the production technology that resistant to elevated temperatures performance can be applicable to heavy castings, but its manufacturing cost is higher, and can not be applicable to manual brushing, this coating is black, easily causes the image of working environment black pollution.
Summary of the invention
For the deficiencies in the prior art, the preparation method who the purpose of this invention is to provide a kind of highly-breathable full-mold casting coating, all have strong wearability, high tack, good gas permeability and drip-dry full-mold casting coating under high temperature, low temperature environment, can satisfy the heavy castings production requirement.
Technical scheme of the present invention is as follows:
A kind of preparation method of highly-breathable full-mold casting coating, formed by following component in weight portion: bauxite chamotte 56-70 part, plant ash 5-7 part, precipitated calcium carbonate powder 10-15 part, graphite powder 10-15 part, nano-attapulgite 4-6 part, lignin sulfonic acid 1-2 part, polyvinyl alcohol 2-3 part, sodium carboxymethylcellulose 0.8-1.5 part, Sodium Benzoate 0.4-0.6 part, nanometer scale ceramics powder 1-2 part, brown iron oxide 0.5-0.8 part, aluminum sulfate 2-3 part, waterglass 5-6 part, water 65-75 part, described preparation method comprises the steps:
1) plant ash was soaked 3-4 hour with 10-15% sulfuric acid, deionized water is washed, then soaks 3-4 hour with the 10-12% sodium hydroxide solution, then washs to neutral with deionized water, then calcines 2-3 hour under 500-530 ℃, is ground into modification plant ash;
2) the modification plant ash that above-mentioned steps is obtained mixes with the water of nano-attapulgite, 1/4 weight, stir and be heated to 150-160 ℃, be incubated 1-2 hour, stove is chilled to 50 ℃, be incubated 2 hours, then be heated to 100-120 ℃, be incubated 1 hour, be cooled to normal temperature with 20 ℃/hour, namely make modification plant ash and nano-attapulgite water mixed liquid;
3) precipitated calcium carbonate powder, graphite powder, nanometer scale ceramics powder, polyvinyl alcohol, the sodium carboxymethylcellulose with above-mentioned weight portion mixes with the water of 1/4 weight, and fully stirs, and then standing 30-60min, then slowly be heated to 75-85 ℃ and fully stirring;
4) with step 2) product, step 3) product, bauxite chamotte, brown iron oxide, aluminum sulfate, waterglass, 1/2 weight parts water add in reactor, open reactor, mixing speed is: 100-120r/min, add other raw material in stirring downhill reaction still, the temperature that heats simultaneously reactor slowly rises to 70-80 ℃, constant temperature stirs 10-18min, grinds, gets final product.
Compared with prior art, the present invention has following beneficial effect:
1) on the basis of great many of experiments, determined composition and separately the content of aggregate, nano-attapulgite, bonding agent and the auxiliary material of coating, make the effect between above-mentioned each component reach collaborative, the combination property of coating is improved.Full-mold casting coating of the present invention had both reached high anti-stick sand ability, rigidity and the resistance to elevated temperatures of raising apperance, minimized cost again.Optimization allotment through aggregate and various additives forms high current sex change fluid, all reaches better state with foamed polystyrene pattern wetability and brushability.Facts have proved, this coating just can reach the above paint thickness of 1.7mm through 2 times brushings, and the anti-stick sand that can satisfy heavy castings requires and carry needs.
2) full-mold casting coating of the present invention has good suspension and thixotropy, also has good gas permeability and higher surface strength, and preparation technology is simple, easy to operate, abundant raw materials, production cost are low.Full mold cast(ing) surface with its production is bright and clean, without carbon defects such as elephant skin; Coating is easy to peel off, and is convenient to cleaning.
The specific embodiment
A kind of preparation method of highly-breathable full-mold casting coating is comprised of following component in weight portion (kilogram): 70 parts of bauxite chamottes, 7 parts of plant ash, 15 parts, precipitated calcium carbonate powder, 10 parts of graphite powders, 4 parts of nano-attapulgites, 1 part of lignin sulfonic acid, 3 parts of polyvinyl alcohol, 1.5 parts of sodium carboxymethylcelluloses, 0.6 part of Sodium Benzoate, 2 parts, nanometer scale ceramics powder, 0.8 part of brown iron oxide, 3 parts, aluminum sulfate, 5 parts of waterglass, 75 parts, water, the preparation method comprises the steps:
1) plant ash was soaked 3-4 hour with 15% sulfuric acid, deionized water is washed, then soaks 3-4 hour with 12% sodium hydroxide solution, more extremely neutral with the deionized water washing, then calcines 2-3 hour under 500-530 ℃, is ground into modification plant ash;
2) the modification plant ash that above-mentioned steps is obtained mixes with the water of nano-attapulgite, 1/4 weight, stir and be heated to 150-160 ℃, be incubated 2 hours, stove is chilled to 50 ℃, be incubated 2 hours, then be heated to 100-120 ℃, be incubated 1 hour, be cooled to normal temperature with 20 ℃/hour, namely make modification plant ash and nano-attapulgite water mixed liquid;
3) precipitated calcium carbonate powder, graphite powder, nanometer scale ceramics powder, polyvinyl alcohol, the sodium carboxymethylcellulose with above-mentioned weight portion mixes with the water of 1/4 weight, and fully stirs, and then standing 30-60min, then slowly be heated to 75-85 ℃ and fully stirring;
4) with step 2) product, step 3) product, bauxite chamotte, brown iron oxide, aluminum sulfate, waterglass, 1/2 weight parts water add in reactor, open reactor, mixing speed is: 100-120r/min, add other raw material in stirring downhill reaction still, the temperature that heats simultaneously reactor slowly rises to 70-80 ℃, constant temperature stirs 10-18min, grinds, gets final product.
Utilize the suspensibility of coating placement after 72 hours of method preparation of the present invention greater than 98%; The shear stress of coating is limited to 16-19Pa; Be 40-42s with the apparent viscosity value that is coated with 4 viscometer determining coating, thixotroping rate 15-17%, the brushing index of coating, an amount of dropping down and a time of dropping down are respectively 6.0,0.4g and 10s.The normal temperature strength of coating is higher than 700g/mm.Through the intensity of paint coatings after 1200 ℃ of roastings higher than 500g/mm.The normal temperature gas permeability of coating is higher than 10cm
2(kPamin)
-1, hot permeability is greater than 20cm
2(kPamin)
-1
Claims (1)
1. the preparation method of a highly-breathable full-mold casting coating, it is characterized in that, formed by following component in weight portion: bauxite chamotte 56-70 part, plant ash 5-7 part, precipitated calcium carbonate powder 10-15 part, graphite powder 10-15 part, nano-attapulgite 4-6 part, lignin sulfonic acid 1-2 part, polyvinyl alcohol 2-3 part, sodium carboxymethylcellulose 0.8-1.5 part, Sodium Benzoate 0.4-0.6 part, nanometer scale ceramics powder 1-2 part, brown iron oxide 0.5-0.8 part, aluminum sulfate 2-3 part, waterglass 5-6 part, water 65-75 part, described preparation method comprises the steps:
1) plant ash was soaked 3-4 hour with 10-15% sulfuric acid, deionized water is washed, then soaks 3-4 hour with the 10-12% sodium hydroxide solution, then washs to neutral with deionized water, then calcines 2-3 hour under 500-530 ℃, is ground into modification plant ash;
2) the modification plant ash that above-mentioned steps is obtained mixes with the water of nano-attapulgite, 1/4 weight, stir and be heated to 150-160 ℃, be incubated 1-2 hour, stove is chilled to 50 ℃, be incubated 2 hours, then be heated to 100-120 ℃, be incubated 1 hour, be cooled to normal temperature with 20 ℃/hour, namely make modification plant ash and nano-attapulgite water mixed liquid;
3) precipitated calcium carbonate powder, graphite powder, nanometer scale ceramics powder, polyvinyl alcohol, the sodium carboxymethylcellulose with above-mentioned weight portion mixes with the water of 1/4 weight, and fully stirs, and then standing 30-60min, then slowly be heated to 75-85 ℃ and fully stirring;
4) with step 2) product, step 3) product, bauxite chamotte, brown iron oxide, aluminum sulfate, waterglass, 1/2 weight parts water add in reactor, open reactor, mixing speed is: 100-120r/min, add other raw material in stirring downhill reaction still, the temperature that heats simultaneously reactor slowly rises to 70-80 ℃, constant temperature stirs 10-18min, grinds, gets final product.
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| CN201210530893.1A CN103100653B (en) | 2012-12-11 | 2012-12-11 | A kind of preparation method of highly-breathable full-mold casting coating |
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| CN201210530893.1A CN103100653B (en) | 2012-12-11 | 2012-12-11 | A kind of preparation method of highly-breathable full-mold casting coating |
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| CN103100653A true CN103100653A (en) | 2013-05-15 |
| CN103100653B CN103100653B (en) | 2016-03-23 |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104014723A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | Expansible graphite alcohol-group casting coating and preparation method thereof |
| CN104014722A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | Active carbon/kaolin composite alcohol-group casting coating and preparation method thereof |
| CN104014727A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | Modified rosin type alcohol-based casting coating and preparation method thereof |
| CN104209452A (en) * | 2014-06-16 | 2014-12-17 | 芜湖市鸿坤汽车零部件有限公司 | Modified steel slag sand alcohol-based casting coating and preparation method thereof |
| CN104325066A (en) * | 2014-10-08 | 2015-02-04 | 铜陵瑞莱科技有限公司 | Modified fly ash alcohol base casting coating material and production method thereof |
| CN104399870A (en) * | 2014-11-08 | 2015-03-11 | 芜湖市鸿坤汽车零部件有限公司 | Novel alcohol-based casting paint containing tree ash and manufacturing method thereof |
| CN104475664A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | Building gypsum/attapulgite composite casting coating and manufacturing method thereof |
| CN104475668A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | Cristobalite/graphite composite casting coating and manufacturing method thereof |
| CN104475670A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | Modified municipal sludge casting coating and manufacturing method thereof |
| CN104475666A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | High temperature resistant environmentally-friendly casting coating and manufacturing method thereof |
| CN104475667A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | Zircon coating and manufacturing method thereof |
| CN104889315A (en) * | 2015-06-18 | 2015-09-09 | 山西威龙铁路机车制动配件制造有限公司 | Water-based coating for lost foam casting and preparation method of coating |
| CN105562592A (en) * | 2016-01-11 | 2016-05-11 | 明光市留香泵业有限公司 | Low-carbon-residue high-temperature-creep-resisting lost foam casting water-based paint with nanophase ceramic powder solution enhancement function and preparation method of water-based paint |
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Cited By (19)
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| CN104014723A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | Expansible graphite alcohol-group casting coating and preparation method thereof |
| CN104014722A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | Active carbon/kaolin composite alcohol-group casting coating and preparation method thereof |
| CN104014727A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | Modified rosin type alcohol-based casting coating and preparation method thereof |
| CN104209452A (en) * | 2014-06-16 | 2014-12-17 | 芜湖市鸿坤汽车零部件有限公司 | Modified steel slag sand alcohol-based casting coating and preparation method thereof |
| CN104475670A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | Modified municipal sludge casting coating and manufacturing method thereof |
| CN104475664A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | Building gypsum/attapulgite composite casting coating and manufacturing method thereof |
| CN104475668A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | Cristobalite/graphite composite casting coating and manufacturing method thereof |
| CN104325066A (en) * | 2014-10-08 | 2015-02-04 | 铜陵瑞莱科技有限公司 | Modified fly ash alcohol base casting coating material and production method thereof |
| CN104475666A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | High temperature resistant environmentally-friendly casting coating and manufacturing method thereof |
| CN104475667A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | Zircon coating and manufacturing method thereof |
| CN104399870A (en) * | 2014-11-08 | 2015-03-11 | 芜湖市鸿坤汽车零部件有限公司 | Novel alcohol-based casting paint containing tree ash and manufacturing method thereof |
| CN104889315A (en) * | 2015-06-18 | 2015-09-09 | 山西威龙铁路机车制动配件制造有限公司 | Water-based coating for lost foam casting and preparation method of coating |
| CN105562592A (en) * | 2016-01-11 | 2016-05-11 | 明光市留香泵业有限公司 | Low-carbon-residue high-temperature-creep-resisting lost foam casting water-based paint with nanophase ceramic powder solution enhancement function and preparation method of water-based paint |
| CN106011616A (en) * | 2016-05-26 | 2016-10-12 | 合肥和安机械制造有限公司 | Production process of forklift load-backrest |
| CN106243945A (en) * | 2016-08-30 | 2016-12-21 | 安徽翰文运动用品股份有限公司 | A kind of polish lacquer being sprayed on racket |
| CN106825391A (en) * | 2017-02-28 | 2017-06-13 | 黄河科技学院 | Good cast paint of a kind of rapid draing performance and preparation method thereof |
| CN107052232A (en) * | 2017-06-28 | 2017-08-18 | 安徽华飞机械铸锻有限公司 | A kind of full-mold casting coating and preparation method thereof |
| CN107520400A (en) * | 2017-08-21 | 2017-12-29 | 马鞍山市三川机械制造有限公司 | A kind of cast paint |
| CN110961571A (en) * | 2020-01-07 | 2020-04-07 | 大连远景铸造有限公司 | Casting surface air-tight hole technology |
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