CN103588490B - CO is blown in anti-moisture absorption2Gas hardened sodium silicate sand and preparation method thereof - Google Patents
CO is blown in anti-moisture absorption2Gas hardened sodium silicate sand and preparation method thereof Download PDFInfo
- Publication number
- CN103588490B CN103588490B CN201310472575.9A CN201310472575A CN103588490B CN 103588490 B CN103588490 B CN 103588490B CN 201310472575 A CN201310472575 A CN 201310472575A CN 103588490 B CN103588490 B CN 103588490B
- Authority
- CN
- China
- Prior art keywords
- sand
- sodium
- water
- powder
- preparation
- 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.)
- Expired - Fee Related
Links
Landscapes
- Mold Materials And Core Materials (AREA)
- Cosmetics (AREA)
Abstract
The invention discloses a kind of anti-moisture absorption and blow CO2Gas hardened sodium silicate sand and preparation method thereof, it is made up of the raw material of following weight portion: return sand 70-80, potash feldspar 25-35, triacetyl glycerine 3-5, modified water glass 4-8, kieselguhr 5-10, red mud 3-6, zinc carbonate 2-3, Lithium hydrate 1.5-2.5, ammonia-alum 1-2, water soluble phenol resin 4-6, No. 20 machine oil 2-3, ten trifluoro octyl group trimethoxy silane 0.5-1.5。Water-glass sand of the present invention has the resistance to water soak of excellence, in the environment of relative humidity more than 95%, 24h sample tensile strength is more than 0.5Mpa, and it is good to have good mobility, breathability, fillibility, collapsibility, it is possible to prevent foundry goods to produce the defects such as pore, burning into sand, sand washing, it is ensured that casting quality。
Description
Technical field
The present invention relates to a kind of anti-moisture absorption and blow CO2Gas hardened sodium silicate sand and preparation method thereof, belongs to molding sand technical field。
Background technology
Producing big-and-middle-sized foundry goods in the past and all adopt clay-beaded sand, to deliver to drying oven and dry after having made type, the production cycle is long, and casting accuracy is poor, and labor condition is poor, can not meet far away the needs of production development。The features such as water-glass sand is high due to mobility, and compact rate of molding is high, and hardening is fast, and casting accuracy is high, and source is relatively wide, cheap, environmental protection, it has also become one of molding sand kind with fastest developing speed in recent decades。Current most of steel-casting and large-sized iron casting adopt water virus to produce, although water-glass sand advantage is a lot, but deposit in a humid environment and can absorb moisture and cause decrease in strength, very big trouble is brought to castings production, especially at south China plum rain season, hygroscopicity problems is more prominent。
Summary of the invention
Present invention aims to the deficiencies in the prior art, improve a kind of anti-moisture absorption and blow CO2Gas hardened sodium silicate sand and preparation method thereof。
The technical solution used in the present invention is as follows:
CO is blown in a kind of anti-moisture absorption2Gas hardened sodium silicate sand, is made up of the raw material of following weight portion: return sand 70-80, potash feldspar 25-35, triacetyl glycerine 3-5, modified water glass 4-8, kieselguhr 5-10, red mud 3-6, zinc carbonate 2-3, Lithium hydrate 1.5-2.5, ammonia-alum 1-2, water soluble phenol resin 4-6, No. 20 machine oil 2-3, ten trifluoro octyl group trimethoxy silane 0.5-1.5；
The preparation method of described modified water glass is as follows:
(1) raw material of following weight portion is weighed: waterglass 25-35, water soluble starch 4-8, dextrin 3-6, carbamide 3-4, sodium sulfite 2-3, sodium polyacrylate 4-6, potassium dihydrogen phosphate 2-4, xylitol 1-2, polyisobutylene 2-3, calcium lignosulfonate 3-5, polyoxylethylene abietate 1.5-2.5, sodium carboxymethyl cellulose 1-2, Vermiculitum 4-6, meerschaum 3-5, nano aluminium oxide 2-3, jade powder 1.5-2.5, plant ash 2-3, calcium chloride 1-2, sodium chloride 0.5-1, Di(dioctylpyrophosphato) ethylene titanate 0.5-1；
(2) by Vermiculitum, meerschaum mixes, pulverized 100-150 mesh sieve, then in the powder after sieving, calcium chloride and sodium chloride are added, stir, 880-940 DEG C of calcining 2-3h, shrend, it is subsequently placed in the hydrochloric acid solution that concentration is 10-15%, heating is to seething with excitement and speed lapping 15-20min, pH value of solution is regulated to neutral again with the sodium hydroxide solution that concentration is 15-20%, stirring 10-15min, filter, filtering residue is cleaned with distilled water, filtering residue after cleaning adds water to pull an oar and makes the slurry that solid content is 50-60%, add polyisobutylene, calcium lignosulfonate, polyoxylethylene abietate and sodium carboxymethyl cellulose, under 60-80 DEG C of bath temperature, speed lapping slurry particle diameter is to less than 15 μm, it is spray dried to powder, with nano aluminium oxide, jade powder, plant ash and Di(dioctylpyrophosphato) ethylene titanate, mixed at high speed 5-10min, dry, pulverize finely ground, cross 300-400 mesh sieve, stand-by；
(3) powder that step (2) prepares is mixed with waterglass, water soluble starch, dextrin, carbamide, sodium sulfite, sodium polyacrylate, potassium dihydrogen phosphate and xylitol, stir 1-2h, obtain modified water glass。
CO is blown in a kind of anti-moisture absorption2The preparation method of gas hardened sodium silicate sand, comprises the following steps:
(1) by return sand, potash feldspar co-grinding, after crossing 150-250 mesh sieve, it is dry mixed 2-3min with kieselguhr, red mud, ammonia-alum；
(2) add water soluble phenol resin, No. 20 machine oil, triacetyl glycerine, ten trifluoro octyl group trimethoxy silanes, mix 1-2min；
(3) it is eventually adding modified water glass, zinc carbonate, Lithium hydrate, mixes 2-3min, shake out。
Beneficial effects of the present invention:
Water-glass sand of the present invention has the resistance to water soak of excellence; in the environment of relative humidity more than 95%; 24h sample tensile strength is more than 0.5Mpa; and it is good to have good mobility, breathability, fillibility, collapsibility; being possible to prevent foundry goods to produce the defects such as pore, burning into sand, sand washing, it is ensured that casting quality, these water-glass sand raw material sources are wide, with low cost, nonpoisonous and tasteless; without silicosis, be conducive to improving working conditions and preserving the ecological environment。
Detailed description of the invention
CO is blown in a kind of anti-moisture absorption2Gas hardened sodium silicate sand, is made up of the raw material of following weight (kg): return sand 70, potash feldspar 30, triacetyl glycerine 4, modified water glass 6, kieselguhr 8, red mud 4, zinc carbonate 2, Lithium hydrate 2, ammonia-alum 1.5,5, No. 20 machine oil 2, ten trifluoro octyl group trimethoxy silanes 1 of water soluble phenol resin；
The preparation method of described modified water glass is as follows:
(1) raw material of following weight (kg) is weighed: waterglass 32, water soluble starch 7, dextrin 5, carbamide 3, sodium sulfite 2.5, sodium polyacrylate 5, potassium dihydrogen phosphate 3, xylitol 1.5, polyisobutylene 3, calcium lignosulfonate 4, polyoxylethylene abietate 2.5, sodium carboxymethyl cellulose 2, Vermiculitum 5, meerschaum 4, nano aluminium oxide 2.5, jade powder 2, plant ash 3, calcium chloride 1.5, sodium chloride 0.8, Di(dioctylpyrophosphato) ethylene titanate 0.8；
(2) by Vermiculitum, meerschaum mixes, pulverized 150 mesh sieves, then in the powder after sieving, calcium chloride and sodium chloride are added, stir, 940 DEG C of calcining 2h, shrend, it is subsequently placed in the hydrochloric acid solution that concentration is 15%, heating is to seething with excitement and speed lapping 20min, pH value of solution is regulated to neutral again with the sodium hydroxide solution that concentration is 20%, stirring 15min, filter, filtering residue is cleaned with distilled water, filtering residue after cleaning adds water to pull an oar and makes the slurry that solid content is 50%, add polyisobutylene, calcium lignosulfonate, polyoxylethylene abietate and sodium carboxymethyl cellulose, under 70 DEG C of bath temperatures, speed lapping slurry particle diameter is to less than 15 μm, it is spray dried to powder, with nano aluminium oxide, jade powder, plant ash and Di(dioctylpyrophosphato) ethylene titanate, mixed at high speed 10min, dry, pulverize finely ground, cross 400 mesh sieves, stand-by；
(3) powder that step (2) prepares is mixed with waterglass, water soluble starch, dextrin, carbamide, sodium sulfite, sodium polyacrylate, potassium dihydrogen phosphate and xylitol, stir 2h, obtain modified water glass。
CO is blown in a kind of anti-moisture absorption2The preparation method of gas hardened sodium silicate sand, comprises the following steps:
(1) by return sand, potash feldspar co-grinding, after crossing 200 mesh sieves, it is dry mixed 2min with kieselguhr, red mud, ammonia-alum；
(2) add water soluble phenol resin, No. 20 machine oil, triacetyl glycerine, ten trifluoro octyl group trimethoxy silanes, mix 2min；
(3) it is eventually adding modified water glass, zinc carbonate, Lithium hydrate, mixes 3min, shake out。
The performance test of the present embodiment molding sand is as follows:
Green compression strength (kPa): 58
24h tensile strength (MPa): 0.62
Breathability: 133
Compact rate of molding (%): 46
Shatter index (%): 85。
Claims (2)
1. CO is blown in an anti-moisture absorption2Gas hardened sodium silicate sand, it is characterized in that, be made up of the raw material of following weight portion: return sand 70-80, potash feldspar 25-35, triacetyl glycerine 3-5, modified water glass 4-8, kieselguhr 5-10, red mud 3-6, zinc carbonate 2-3, Lithium hydrate 1.5-2.5, ammonia-alum 1-2, water soluble phenol resin 4-6, No. 20 machine oil 2-3, ten trifluoro octyl group trimethoxy silane 0.5-1.5；
The preparation method of described modified water glass is as follows:
(1) raw material of following weight portion is weighed: waterglass 25-35, water soluble starch 4-8, dextrin 3-6, carbamide 3-4, sodium sulfite 2-3, sodium polyacrylate 4-6, potassium dihydrogen phosphate 2-4, xylitol 1-2, polyisobutylene 2-3, calcium lignosulfonate 3-5, polyoxylethylene abietate 1.5-2.5, sodium carboxymethyl cellulose 1-2, Vermiculitum 4-6, meerschaum 3-5, nano aluminium oxide 2-3, jade powder 1.5-2.5, plant ash 2-3, calcium chloride 1-2, sodium chloride 0.5-1, Di(dioctylpyrophosphato) ethylene titanate 0.5-1；
(2) by Vermiculitum, meerschaum mixes, pulverized 100-150 mesh sieve, then in the powder after sieving, calcium chloride and sodium chloride are added, stir, 880-940 DEG C of calcining 2-3h, shrend, it is subsequently placed in the hydrochloric acid solution that concentration is 10-15%, heating is to seething with excitement and speed lapping 15-20min, pH value of solution is regulated to neutral again with the sodium hydroxide solution that concentration is 15-20%, stirring 10-15min, filter, filtering residue is cleaned with distilled water, filtering residue after cleaning adds water to pull an oar and makes the slurry that solid content is 50-60%, add polyisobutylene, calcium lignosulfonate, polyoxylethylene abietate and sodium carboxymethyl cellulose, under 60-80 DEG C of bath temperature, speed lapping slurry particle diameter is to less than 15 μm, it is spray dried to powder, with nano aluminium oxide, jade powder, plant ash and Di(dioctylpyrophosphato) ethylene titanate, mixed at high speed 5-10min, dry, pulverize finely ground, cross 300-400 mesh sieve, stand-by；
(3) powder that step (2) prepares is mixed with waterglass, water soluble starch, dextrin, carbamide, sodium sulfite, sodium polyacrylate, potassium dihydrogen phosphate and xylitol, stir 1-2h, obtain modified water glass。
2. CO is blown in anti-moisture absorption according to claim 12The preparation method of gas hardened sodium silicate sand, it is characterised in that comprise the following steps:
(1) by return sand, potash feldspar co-grinding, after crossing 150-250 mesh sieve, it is dry mixed 2-3min with kieselguhr, red mud, ammonia-alum；
(2) add water soluble phenol resin, No. 20 machine oil, triacetyl glycerine, ten trifluoro octyl group trimethoxy silanes, mix 1-2min；
(3) it is eventually adding modified water glass, zinc carbonate, Lithium hydrate, mixes 2-3min, shake out。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472575.9A CN103588490B (en) | 2013-10-11 | 2013-10-11 | CO is blown in anti-moisture absorption2Gas hardened sodium silicate sand and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472575.9A CN103588490B (en) | 2013-10-11 | 2013-10-11 | CO is blown in anti-moisture absorption2Gas hardened sodium silicate sand and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103588490A CN103588490A (en) | 2014-02-19 |
| CN103588490B true CN103588490B (en) | 2016-06-22 |
Family
ID=50078854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310472575.9A Expired - Fee Related CN103588490B (en) | 2013-10-11 | 2013-10-11 | CO is blown in anti-moisture absorption2Gas hardened sodium silicate sand and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103588490B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964928A (en) * | 2016-02-18 | 2016-09-28 | 蚌埠市鸿安精密机械有限公司 | Potassium titanate whisker-reinforced water-soluble mold core and preparation method thereof |
| CN117696829A (en) * | 2023-12-26 | 2024-03-15 | 曲阜冶通铸材科技发展有限公司 | Casting additive for sand casting and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101108407A (en) * | 2006-07-18 | 2008-01-23 | 沈阳汇亚通铸造材料有限责任公司 | Adhesive for casting mold, manufacturing core and method of manufacturing the same |
| CN101293271A (en) * | 2007-04-24 | 2008-10-29 | 沈阳汇亚通铸造材料有限责任公司 | Method for making core with aeration ossification |
| CN102351550A (en) * | 2011-07-15 | 2012-02-15 | 郑州远东耐火材料有限公司 | Preparation method of sand die material of fused zirconia corundum block |
| CN102962395A (en) * | 2012-11-23 | 2013-03-13 | 西安工程大学 | Compound modified water glass binder and preparation method thereof |
-
2013
- 2013-10-11 CN CN201310472575.9A patent/CN103588490B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101108407A (en) * | 2006-07-18 | 2008-01-23 | 沈阳汇亚通铸造材料有限责任公司 | Adhesive for casting mold, manufacturing core and method of manufacturing the same |
| CN101293271A (en) * | 2007-04-24 | 2008-10-29 | 沈阳汇亚通铸造材料有限责任公司 | Method for making core with aeration ossification |
| CN102351550A (en) * | 2011-07-15 | 2012-02-15 | 郑州远东耐火材料有限公司 | Preparation method of sand die material of fused zirconia corundum block |
| CN102962395A (en) * | 2012-11-23 | 2013-03-13 | 西安工程大学 | Compound modified water glass binder and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103588490A (en) | 2014-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103567356A (en) | Sodium silicate sand with high wet-compressive strength and preparation method thereof | |
| CN103567363A (en) | High-collapsibility water-glass sand and preparation method thereof | |
| CN103567369A (en) | Clay molding sand for cast steel and preparation method thereof | |
| CN104801655A (en) | High-strength foundry casting sand and preparation method thereof | |
| CN103567355A (en) | Organic ester sodium silicate self-hardening sand and preparation method thereof | |
| CN103570367A (en) | High fire-resistant molding sand for casting and preparation method thereof | |
| CN103567359A (en) | Clay green sand for high-pressure molding and preparation method thereof | |
| CN103567358A (en) | Low gas forming amount molding sand for casting and preparation method thereof | |
| CN103567365A (en) | Furan resin self-hardening sand for casting and preparation method thereof | |
| CN112794666A (en) | Iron tailing non-sintered ceramsite and preparation method thereof | |
| CN106478012A (en) | A kind of sludge curing agent and preparation method thereof | |
| CN105130487A (en) | Composition for producing filter ceramic and the filter ceramic, and preparation method and application thereof | |
| CN103588490B (en) | CO is blown in anti-moisture absorption2Gas hardened sodium silicate sand and preparation method thereof | |
| CN103588456B (en) | A kind of autoclaved fly ash tailing-bricks | |
| CN103551489A (en) | Foundry molding sand containing blast furnace slag | |
| CN104259407A (en) | Heat-insulation covering agent and preparation method thereof for riser | |
| CN106518105A (en) | Water-resistant moisture-proof refractory brick and preparation method thereof | |
| CN103567364A (en) | Molding sand for cast aluminum and preparation method thereof | |
| CN105418159A (en) | Sand-based water permeable brick high in compressive strength and manufacturing method thereof | |
| CN103551491A (en) | Foundry molding sand containing ore tailings | |
| CN107382275A (en) | Utilize the fired brick and its preparation technology of the production of Ceramic Tiles waste residue | |
| CN106082954A (en) | A kind of water-fast moistureproof ceramic tile and preparation method thereof | |
| CN107032802A (en) | A kind of insulation refractory brick and preparation method thereof | |
| CN103567354A (en) | Green sand for nonferrous alloy casting and preparation method thereof | |
| CN105108038A (en) | High-collapsibility hydrotalcite modified composite sodium silicate-bonded sand for steel casting and preparation method of composite sodium silicate-bonded sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170322 Address after: 244031 West Lake Town, Tongling, Anhui Patentee after: Tongling Xinte Valve Co., Ltd. Address before: 244031 Anhui City, Jiangsu Province, lion mountain eastern suburb of the office of the neighborhood committee Patentee before: TONGLING JINGWEI FLUID TECHNOLOGY CO., LTD. |
|
| 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: 20160622 Termination date: 20161011 |