CN102728780B - Water glass molding sand and producing method thereof - Google Patents
Water glass molding sand and producing method thereof Download PDFInfo
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- CN102728780B CN102728780B CN201210187013.5A CN201210187013A CN102728780B CN 102728780 B CN102728780 B CN 102728780B CN 201210187013 A CN201210187013 A CN 201210187013A CN 102728780 B CN102728780 B CN 102728780B
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Abstract
The invention discloses a water glass molding sand and a producing method thereof. The method is as below: carrying out dry mixing on raw materials of 70-80 of recycling sand, 10-20 parts of bran, 3-5 of waste from mushroom cultivation material after mushroom growth, 1-3 parts of gypsum, 5-8 parts of quartz sand, 4-6 parts of steel fiber, 3-5 parts of pulverized coal, 3-8 parts of water glass, 1-3 parts of modified acrylic resin, and a proper amount of water; then adding water and mixing; and carrying out sand release, molding, aluminum water casting, and cooling and separation to obtain a finished product. The invention has the advantages of simple production method, reasonable formula, low cost and high production efficiency. Usage of chaff and waste from mushroom cultivation material after mushroom growth as variant sand raw materials can change waste to be treasure; and addition of steel fiber can increase the strength of the water glass molding sand.
Description
Technical field
The present invention relates to a kind of sodium silicate sand and preparation method thereof, belong to foundary industry field.
Background technology
Molding sand is in sand casting, to be used for the material of moulding, molding sand is generally mixed according to a certain percentage by Modeling Materials such as casting model powder, moulding sand binder and additional things, also available natural silica sand argillaceous, the sand formulation Sand particle diameter that common cast aluminium is used is too large or too little, and molding sand material footpath is too large, although gas permeability is better, but aloxite part surface ratio is more coarse, and fineness is bad, molding sand material footpath is too little, cause sand mold gas permeability bad, aluminium casting has pore to produce well.Molding sand is different by binding agent used, can be divided into clay-bonded sand, water-glass sand, cement bonded sand, resin sand etc., and that with clay-bonded sand, water-glass sand and resin sand, uses is maximum.
Summary of the invention
In order to alleviate shortcomings and deficiencies of the prior art, the object of the present invention is to provide a kind of sodium silicate sand and preparation method thereof.
The present invention adopts following technical scheme to achieve these goals:
Sodium silicate sand, the weight portion of its constitutive material is: waste material 3-5, gypsum 1-3, quartz sand 5-8, steel fibre 4-6, coal dust 3-5, waterglass 3-8, acrylic resin modified 1-3 after return sand 70-80, chaff 10-20, cultivating champignon material fruiting, water is appropriate.
Sodium silicate sand, the weight portion of its constitutive material is: waste material 4 after return sand 75, chaff 15, cultivating champignon material fruiting, gypsum 2, quartz sand 6.5, steel fibre 5, coal dust 4, waterglass 5, acrylic resin modified 2, water is appropriate.
The preparation method of sodium silicate sand, comprises the following steps:
(1) press waste material after the weight portion mixing return sand, chaff, cultivating champignon material fruiting of constitutive material, gypsum, quartz sand, steel fibre, coal dust, waterglass and acrylic resin modified, be first dry mixed 10-20 second, then add water mixing 10-20 minute.
Described is acrylic resin modified by constitutive material tertiary ethylene carbonate 10-12, styrene 10-12, butyl acrylate 8-10, glycerine 4-6, Permethyl 99A base mercaptan 0.1-0.2, sodium peroxydisulfate 0.3-0.5 and solvent butyl acetate 40-45; preparation method: solvent butyl acetate is added in reactor; inflated with nitrogen protection; again other reaction raw materials beyond sodium peroxydisulfate is added in reactor; stir; be heated to 140-150 ℃; sodium peroxydisulfate is added in reactor; stir; insulation reaction 3-4 hour; be cooled to more than 90 ℃, filter, obtain.
Beneficial effect of the present invention:
Preparation method of the present invention is simple, fill a prescription reasonable, with low cost, production efficiency is high, adopt chaff, cultivating champignon material fruiting after waste material make modification sandy plain material, can turn waste into wealth, increase steel fibre, can gain in strength.
The specific embodiment
embodiment 1:sodium silicate sand, the weight portion of its constitutive material is: waste material 3 after return sand 70, chaff 10, cultivating champignon material fruiting, gypsum 1, quartz sand 5, steel fibre 4, coal dust 3, waterglass 3, acrylic resin modified 1, water is appropriate.
The preparation method of sodium silicate sand, comprises the following steps:
(1) press waste material after the weight portion mixing return sand, chaff, cultivating champignon material fruiting of constitutive material, gypsum, quartz sand, steel fibre, coal dust, waterglass and acrylic resin modified, be first dry mixed 10-20 second, then add water mixing 10-20 minute.
Described is acrylic resin modified by constitutive material tertiary ethylene carbonate 10-12, styrene 10-12, butyl acrylate 8-10, glycerine 4-6, Permethyl 99A base mercaptan 0.1-0.2, sodium peroxydisulfate 0.3-0.5 and solvent butyl acetate 40-45; preparation method: solvent butyl acetate is added in reactor; inflated with nitrogen protection; again other reaction raw materials beyond sodium peroxydisulfate is added in reactor; stir; be heated to 140-150 ℃; sodium peroxydisulfate is added in reactor; stir; insulation reaction 3-4 hour; be cooled to more than 90 ℃, filter, obtain.
embodiment 2:sodium silicate sand, the weight portion of its constitutive material is: waste material 4 after return sand 75, chaff 15, cultivating champignon material fruiting, gypsum 2, quartz sand 6.5, steel fibre 5, coal dust 4, waterglass 5, acrylic resin modified 2, water is appropriate.
The preparation method of sodium silicate sand, as embodiment 1.
Described acrylic resin modified formula and preparation method are as embodiment 1.
embodiment 3:sodium silicate sand, the weight portion of its constitutive material is: waste material 5 after return sand 80, chaff 20, cultivating champignon material fruiting, gypsum 3, quartz sand 8, steel fibre 6, coal dust 5, waterglass 8, acrylic resin modified 3, water is appropriate.
The preparation method of sodium silicate sand, as embodiment 1.
Described acrylic resin modified formula and preparation method are as embodiment 1.
The processing performance of the water-glass sand that the present invention makes:
Green compression strength: 0.107MPa, air penetrability: 92%, hot green tensile strength: 335kPa, shatter index: 89%.
Claims (2)
1. a sodium silicate sand, the weight portion that it is characterized in that its constitutive material is: waste material 3-5, gypsum 1-3, quartz sand 5-8, steel fibre 4-6, coal dust 3-5, waterglass 3-8, acrylic resin modified 1-3 after return sand 70-80, chaff 10-20, cultivating champignon material fruiting, and water is appropriate;
The preparation method of described sodium silicate sand comprises the following steps:
(1) press waste material after the weight portion mixing return sand, chaff, cultivating champignon material fruiting of constitutive material, gypsum, quartz sand, steel fibre, coal dust, waterglass and acrylic resin modified, be first dry mixed 10-20 second, then add water mixing 10-20 minute.
2. according to sodium silicate sand claimed in claim 1, the weight portion that it is characterized in that its constitutive material is: waste material 4 after return sand 75, chaff 15, cultivating champignon material fruiting, gypsum 2, quartz sand 6.5, steel fibre 5, coal dust 4, waterglass 5, acrylic resin modified 2, water is appropriate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187013.5A CN102728780B (en) | 2012-06-08 | 2012-06-08 | Water glass molding sand and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187013.5A CN102728780B (en) | 2012-06-08 | 2012-06-08 | Water glass molding sand and producing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102728780A CN102728780A (en) | 2012-10-17 |
| CN102728780B true CN102728780B (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210187013.5A Active CN102728780B (en) | 2012-06-08 | 2012-06-08 | Water glass molding sand and producing method thereof |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567356A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Sodium silicate sand with high wet-compressive strength and preparation method thereof |
| CN104475646A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | Heat resistance and good plasticity molding sand and preparation method thereof |
| CN104475645A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | High pressure modeling molding sand and preparation method thereof |
| CN104646595A (en) * | 2015-01-22 | 2015-05-27 | 安徽省繁昌县皖南阀门铸造有限公司 | Core molding sand containing spherical quartz and preparation method of core molding sand |
| CN104985105A (en) * | 2015-06-26 | 2015-10-21 | 瓮安县瑞丰贸易有限公司 | Novel water glass molding sand and preparation method thereof |
| CN104999024A (en) * | 2015-07-06 | 2015-10-28 | 安徽三联泵业股份有限公司 | Nanometre microlite-supported furan resin-modified moulding sand for pump body casting |
| CN105033167A (en) * | 2015-07-06 | 2015-11-11 | 安徽三联泵业股份有限公司 | Modified pump body casting foundry sand with furan resin loaded with nanosized graphite |
| CN107671230A (en) * | 2017-09-15 | 2018-02-09 | 江苏闽江矿业有限公司 | A kind of modified sodium silicate sand |
| CN108296417B (en) * | 2017-09-29 | 2020-05-01 | 柳州市柳晶科技股份有限公司 | Precoated sand for laser sintering and 3D printing technology and preparation method thereof |
| CN112958745A (en) * | 2021-03-01 | 2021-06-15 | 曲阜市铸造材料厂 | Preparation method of modified sodium silicate sand in cast iron application |
Citations (4)
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|---|---|---|---|---|
| GB722816A (en) * | 1954-06-08 | 1955-02-02 | Vickers Electrical Co Ltd | Improvements relating to precision casting by the lost-wax process |
| GB729057A (en) * | 1951-10-01 | 1955-05-04 | Goodrich Co B F | Improvements in or relating to a sand mold and core composition and method of makingsame |
| US3196505A (en) * | 1961-01-02 | 1965-07-27 | Mo Och Domsjoe Ab | Methods of making sand molds or cores for casting |
| CN102059318A (en) * | 2011-01-18 | 2011-05-18 | 重庆大学 | Fiber reinforced resin sand |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62144846A (en) * | 1985-12-20 | 1987-06-29 | Chuo Denki Kogyo Kk | Casting mold for high melting point metal and its production |
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2012
- 2012-06-08 CN CN201210187013.5A patent/CN102728780B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB729057A (en) * | 1951-10-01 | 1955-05-04 | Goodrich Co B F | Improvements in or relating to a sand mold and core composition and method of makingsame |
| GB722816A (en) * | 1954-06-08 | 1955-02-02 | Vickers Electrical Co Ltd | Improvements relating to precision casting by the lost-wax process |
| US3196505A (en) * | 1961-01-02 | 1965-07-27 | Mo Och Domsjoe Ab | Methods of making sand molds or cores for casting |
| CN102059318A (en) * | 2011-01-18 | 2011-05-18 | 重庆大学 | Fiber reinforced resin sand |
Non-Patent Citations (3)
| Title |
|---|
| JP昭62-144846A 1987.06.29 |
| 利用纤维强化砂型;古田章彦;《铁道机车车辆工人》;20010731(第7期);第30页第1-第3段 * |
| 古田章彦.利用纤维强化砂型.《铁道机车车辆工人》.2001,(第7期), |
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| CN102728780A (en) | 2012-10-17 |
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Address after: 241200 Sun Cun Zhen Li Shan Cun, Fanchang County, Wuhu City, Anhui Province Patentee after: Fanchang Qixiang foundry (general partnership) Address before: 241200 Sun Cun Zhen Li Shan Cun, Fanchang County, Wuhu City, Anhui Province Patentee before: FANCHANG COUNTY QIXIANG CASTING FACTORY |
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