CN102397982A - Sand casting water-based coating - Google Patents
Sand casting water-based coating Download PDFInfo
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- CN102397982A CN102397982A CN2011103920613A CN201110392061A CN102397982A CN 102397982 A CN102397982 A CN 102397982A CN 2011103920613 A CN2011103920613 A CN 2011103920613A CN 201110392061 A CN201110392061 A CN 201110392061A CN 102397982 A CN102397982 A CN 102397982A
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- parts
- powder
- coating
- sodium
- water
- Prior art date
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Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 33
- 238000000576 coating method Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000007528 sand casting Methods 0.000 title claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000000843 powder Substances 0.000 claims abstract description 34
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 16
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims abstract description 16
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 15
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 15
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 15
- 239000011734 sodium Substances 0.000 claims abstract description 15
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229940077388 benzenesulfonate Drugs 0.000 claims abstract description 8
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 8
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 8
- -1 sodium alkyl benzene Chemical class 0.000 claims abstract description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 8
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000440 bentonite Substances 0.000 claims abstract description 3
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000010439 graphite Substances 0.000 claims abstract description 3
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 3
- 239000003973 paint Substances 0.000 claims description 24
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 13
- 235000013312 flour Nutrition 0.000 claims description 13
- 239000000377 silicon dioxide Substances 0.000 claims description 13
- 229910052726 zirconium Inorganic materials 0.000 claims description 13
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 7
- 235000012216 bentonite Nutrition 0.000 claims description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 7
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 7
- 239000010453 quartz Substances 0.000 abstract 2
- 229910052845 zircon Inorganic materials 0.000 abstract 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 abstract 2
- 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 abstract 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 abstract 1
- 229940051841 polyoxyethylene ether Drugs 0.000 abstract 1
- 229920000056 polyoxyethylene ether Polymers 0.000 abstract 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 abstract 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 abstract 1
- 239000004576 sand Substances 0.000 description 15
- 238000005266 casting Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 206010039509 Scab Diseases 0.000 description 5
- 230000001680 brushing effect Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The invention discloses a sand casting water-based coating. The coating consists of the following components in part by weight: 20 to 30 parts of zircon powder, 15 to 20 parts of electro-fused mullite powder, 15 to 20 parts of quartz powder, 2 to 3 parts of lithium-based bentonite, 5 to 10 parts of flake graphite, 2 to 3 parts of silica sol, 0.5 to 0.8 part of sodium carboxymethylcellulose, 0.3 to 0.5 part of sodium alkyl benzene sulfonate, 0.4 to 0.6 part of sodium sulfate, 0.2 to 0.3 part of sodium carbonate, 0.2 to 0.3 part of n-octanol, 0.2 to 0.3 part of fatty alcohol-polyoxyethylene ether and 30 to 40 parts of water, wherein the granularity of the zircon powder, the electro-fused mullite powder and the quartz powder can be 200 to 320 meshes.
Description
Technical field
The present invention relates to casting field, particularly the sand casting field.
Background technology
When utilizing sand mold to produce foundry goods, on casting mold (core) working surface, applying cast paint is one very important operation.Cast paint is a kind of refractory coating, and its main component has: refractory powder, carrier fluid, suspending agent, binding agent, other additives.The major function of this coating is: the direct contact that the blocking-up molten metal bath is surperficial with sand mold (core); Play buffer action; Eliminate molten metal and sand mold (core) surface the essential key element of physics or chemical reaction has taken place, thereby can effectively prevent and reduce defectives such as scab, burning into sand, sand holes; Improve casting mold (core) surface strength; Control foundry goods cooling velocity prevents that foundry goods from producing shrinkage cavity, crack defect; Make casting surface alloying and grain refinement, adjustment cast(ing) surface composition and surface texture improve the serviceability of foundry goods, prolong foundry goods service life; Reduce surface roughness; Improve casting falling sand and cleaning efficiency, significantly reduce the casting cleaning workload, reduce the casting cleaning cost; Improve sand removal workman's operating environment.Thereby cast paint all has positive meaning to improving casting quality and increasing economic efficiency aspect two in castings production.The quality of cast paint just is the direct factor that influences whether scab of foundry goods, burning into sand and cast(ing) surface fineness, casting dimension accuracy.
Cast paint is divided into two big types of alcohol-base foundry coating and water base cast paints according to the difference of carrier fluid.Alcohol-base foundry coating is a carrier fluid with ethanol (being alcohol) mainly, is coated in the mode that on casting mold (core) working surface generally ignite through igniting in the back and obtains dry coating.But alcohol-base paint is through repeatedly brushing, repeatedly lighting in the process of ethanol; Coating foaming appears easily; Coating is coated with interlayer with sand mold (core) surface or each road and combines bad phenomenon; The dry coating that obtains is more loose, combines the coating of bad position under the continuous erosion of molten metal, to come off from sand mold (core) surface easily during cast, thus functions such as the anti-scab of forfeiture.Moreover the alcohol-base foundry coating large tracts of land is brushed the back and is lighted a fire when igniting owing to the moment of the intensity of a fire is spread the potential safety hazard that has the burn operating personnel.
Water base cast paint mainly is carrier fluid with water, applies the back and generally obtains dry coating through burning combustible gas (like natural gas) in modes such as wet film surface baked, heating, dryings.Since water than the alcohol evaporation rate slowly many, in the brushing process, can not resemble the alcohol-base paint comparatively fast because of the smooth property of the quick volatilization decline of solvent, resistance rises, so the brushability of water based paint is superior to alcohol-base paint relatively.Water based paint is dry through modes such as baking, oven dry; Solvent burnt gentle many rapidly after its heat release was ignited than the alcohol-base paint igniting; Defectives such as coating foaming can not appear; Dry coating and sand mold (core) surface and be coated with interlayer and combine closely, the coating densification, molten steel is difficult during casting falls coating from sand mold (core) surface erosion.There is not the operating personnel's that burn potential safety hazard in water based paint.
The Chinese patent document discloses a kind of name and is called " alcohol radical or water base sand powder penetration-prevention cast paint " (publication number: CN1666828; Open day: on September 14th, 2005); Its raw material components complicacy is various, batching, preparation procedure complicacy, and manufacturing cost is obviously higher; And its technical performance index still can not meet the demands, and is mainly reflected in: 1, the brushing processing performance is not good enough; Descending appears in 2, the storage property of coating, less stable, storage process medium viscosity easily.
Therefore, be necessary to develop the water base cast paint of high-quality to solve the aforementioned problems in the prior.
Summary of the invention
Deficiency to prior art; One of the object of the invention is to provide a kind of sand casting water based paint, and this coating can prevent scab, burning into sand and improve cast(ing) surface fineness, casting dimension accuracy, and the brushing processing performance is good; Good stability is easy to store.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is following:
A kind of sand casting water based paint; This coating is made up of the following component in weight portion: zirconium English powder 20-30 part, electrofused mullite powder 15-20 part, silica flour 15-20 part, lithium bentonite 2-3 part; Flake graphite 5-10 part; Ludox 2-3 part, carboxymethyl cellulose acid sodium 0.5-0.8 part, sodium alkyl benzene sulfonate 0.3-0.5 part, sodium sulphate 0.4-0.6 part, sodium carbonate 0.2-0.3 part, n-octyl alcohol 0.2-0.3 part, AEO 0.2-0.3 part; Water 30-40 part, the granularity of wherein said zirconium English powder, electrofused mullite powder, silica flour is the 200-320 order.
Preferably; This coating is made up of the following component in weight portion: 25 parts in zirconium English powder, 18 parts in electrofused mullite powder, 18 parts of silica flours, 2.5 parts of lithium bentonites, 8 parts of flake graphites, 2.5 parts of Ludox, 0.65 part in carboxymethyl cellulose acid sodium; 0.4 part of sodium alkyl benzene sulfonate, 0.5 part in sodium sulphate, 0.25 part in sodium carbonate; 0.25 part of n-octyl alcohol, 0.25 part of AEO, 35 parts in water, the granularity of wherein said zirconium English powder, electrofused mullite powder, silica flour is the 200-320 order.
The present invention compared with prior art has following beneficial effect:
1) the present invention is on the bases of a large amount of experiments, confirmed that each component of coating chooses and content, and the effect that each component played is collaborative each other, makes the excellent combination property of coating.Coating of the present invention can effectively prevent scab, burning into sand, and can improve cast(ing) surface fineness, and the fineness grade can reach Ra0.8-1.6, and improves casting dimension accuracy, and accuracy class can reach 7 grades.
2) coating of the present invention is deposited and transportation safety, and the resting period is long, reaches 12-15 month; And having good flowability, the brushing processing performance is good.
3) coating of the present invention has good hear resistance, chemical stability and adhesiveness; Coating gas forming amount of the present invention is few, has good suspension, does not precipitate in preservation and the use.
The specific embodiment
Embodiment one
A kind of sand casting water based paint; This coating is made up of the following component in weight portion: 20 parts in zirconium English powder, 20 parts in electrofused mullite powder, 15 parts of silica flours, 3 parts of lithium bentonites, 5 parts of flake graphites, 3 parts of Ludox, 0.5 part in carboxymethyl cellulose acid sodium; 0.5 part of sodium alkyl benzene sulfonate, 0.4 part in sodium sulphate, 0.3 part in sodium carbonate; 0.2 part of n-octyl alcohol, 0.3 part of AEO, 30 parts in water, the granularity of wherein said zirconium English powder, electrofused mullite powder, silica flour is the 200-320 order.
Embodiment two
A kind of sand casting water based paint; This coating is made up of the following component in weight portion: 30 parts in zirconium English powder, 15 parts in electrofused mullite powder, 20 parts of silica flours, 2 parts of lithium bentonites, 10 parts of flake graphites, 2 parts of Ludox, 0.8 part in carboxymethyl cellulose acid sodium; 0.3 part of sodium alkyl benzene sulfonate, 0.6 part in sodium sulphate, 0.2 part in sodium carbonate; 0.3 part of n-octyl alcohol, 0.2 part of AEO, 40 parts in water, the granularity of wherein said zirconium English powder, electrofused mullite powder, silica flour is the 200-320 order.
Embodiment three
A kind of sand casting water based paint; This coating is made up of the following component in weight portion: 25 parts in zirconium English powder, 18 parts in electrofused mullite powder, 18 parts of silica flours, 2.5 parts of lithium bentonites; 8 parts of flake graphites; 2.5 parts of Ludox, 0.65 part in carboxymethyl cellulose acid sodium, 0.4 part of sodium alkyl benzene sulfonate, 0.5 part in sodium sulphate, 0.25 part in sodium carbonate, 0.25 part of n-octyl alcohol, 0.25 part of AEO; 35 parts in water, the granularity of wherein said zirconium English powder, electrofused mullite powder, silica flour is the 200-320 order.
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. sand casting water based paint; It is characterized in that; This coating is made up of the following component in weight portion: zirconium English powder 20-30 part, electrofused mullite powder 15-20 part, silica flour 15-20 part, lithium bentonite 2-3 part, flake graphite 5-10 part, Ludox 2-3 part, carboxymethyl cellulose acid sodium 0.5-0.8 part; Sodium alkyl benzene sulfonate 0.3-0.5 part, sodium sulphate 0.4-0.6 part, sodium carbonate 0.2-0.3 part; N-octyl alcohol 0.2-0.3 part, AEO 0.2-0.3 part, water 30-40 part, the granularity of wherein said zirconium English powder, electrofused mullite powder, silica flour can be the 200-320 order.
2. a kind of sand casting water based paint as claimed in claim 1; It is characterized in that this coating is made up of the following component in weight portion: 25 parts in zirconium English powder, 18 parts in electrofused mullite powder, 18 parts of silica flours, 2.5 parts of lithium bentonites, 8 parts of flake graphites; 2.5 parts of Ludox, 0.65 part in carboxymethyl cellulose acid sodium; 0.4 part of sodium alkyl benzene sulfonate, 0.5 part in sodium sulphate, 0.25 part in sodium carbonate, 0.25 part of n-octyl alcohol, 0.25 part of AEO, 35 parts in water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110392061 CN102397982B (en) | 2011-11-29 | 2011-11-29 | Sand casting water-based coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110392061 CN102397982B (en) | 2011-11-29 | 2011-11-29 | Sand casting water-based coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102397982A true CN102397982A (en) | 2012-04-04 |
| CN102397982B CN102397982B (en) | 2013-06-05 |
Family
ID=45880862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110392061 Expired - Fee Related CN102397982B (en) | 2011-11-29 | 2011-11-29 | Sand casting water-based coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102397982B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264140A (en) * | 2013-03-05 | 2013-08-28 | 南通华东油压科技有限公司 | Dedicated core coating for manufacturing walking machinery motor cover, manufacturing method and use method thereof |
| CN106077446A (en) * | 2016-08-15 | 2016-11-09 | 合肥江淮铸造有限责任公司 | A kind of sand core for casting coating |
| CN106964752A (en) * | 2017-05-17 | 2017-07-21 | 东风精密铸造安徽有限公司 | A kind of resin-coated sand shell mould cast carbon steel formulation for coating material and preparation technology |
| CN107350424A (en) * | 2017-09-11 | 2017-11-17 | 芜湖市云峰铸造有限责任公司 | A kind of sand casting water-based 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 |
| CN108380815A (en) * | 2018-05-24 | 2018-08-10 | 靖江市黎明铸造材料厂 | Lost foam casting hardens ghost coating and preparation method thereof |
| CN112828242A (en) * | 2021-01-27 | 2021-05-25 | 桑超 | Water-based paint for special casting process and preparation method and application thereof |
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| JPH04371349A (en) * | 1991-06-20 | 1992-12-24 | Kao Corp | Mold coating material composition for casting |
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2011
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Patent Citations (6)
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| JPH04371349A (en) * | 1991-06-20 | 1992-12-24 | Kao Corp | Mold coating material composition for casting |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264140A (en) * | 2013-03-05 | 2013-08-28 | 南通华东油压科技有限公司 | Dedicated core coating for manufacturing walking machinery motor cover, manufacturing method and use method thereof |
| CN106077446A (en) * | 2016-08-15 | 2016-11-09 | 合肥江淮铸造有限责任公司 | A kind of sand core for casting coating |
| CN106964752A (en) * | 2017-05-17 | 2017-07-21 | 东风精密铸造安徽有限公司 | A kind of resin-coated sand shell mould cast carbon steel formulation for coating material and preparation technology |
| 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 |
| CN107350424A (en) * | 2017-09-11 | 2017-11-17 | 芜湖市云峰铸造有限责任公司 | A kind of sand casting water-based coating |
| CN108380815A (en) * | 2018-05-24 | 2018-08-10 | 靖江市黎明铸造材料厂 | Lost foam casting hardens ghost coating and preparation method thereof |
| CN108380815B (en) * | 2018-05-24 | 2020-06-16 | 靖江市黎明铸造材料厂 | Lost foam casting hardening hollow shell coating and preparation method thereof |
| CN112828242A (en) * | 2021-01-27 | 2021-05-25 | 桑超 | Water-based paint for special casting process and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102397982B (en) | 2013-06-05 |
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