CN104174809A - Recyclable casting molding sand with good air permeability and preparation method of sand - Google Patents

Recyclable casting molding sand with good air permeability and preparation method of sand Download PDF

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Publication number
CN104174809A
CN104174809A CN201410416627.5A CN201410416627A CN104174809A CN 104174809 A CN104174809 A CN 104174809A CN 201410416627 A CN201410416627 A CN 201410416627A CN 104174809 A CN104174809 A CN 104174809A
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China
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sand
parts
obtains
clay
recyclable
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CN201410416627.5A
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CN104174809B (en
Inventor
韦民
黄光伟
孙佳
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HEFEI JAC CASTING CO Ltd
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HEFEI JAC CASTING CO Ltd
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Publication of CN104174809B publication Critical patent/CN104174809B/en
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Abstract

The invention discloses recyclable casting molding sand with good air permeability. The recyclable casting molding sand is characterized by comprising the following materials in parts by weight: 2,280-2,400 parts of used sand, 80-120 parts of new sand, 16-24 parts of bentonite, 100-120 parts of clay, 40-45 parts of furan resin, 16-20 parts of coal powder, 4-5 parts of polyalkylene glycol, 5-6 parts of phosphoric acid, 3-5 parts of wood-pulp floating oil, 2-3 parts of cationic starch, 3-5 parts of artemisia glue, 100-120 parts of modified quartz sand and proper amount of water. The recyclable casting molding sand disclosed by the invention has the advantages that by use of the clay and granulation, the air permeability of the molding sand is improved, the generation of air holes in a casting piece is reduced, and the sand is recyclable; by use of the modified quartz sand, the dispersity and the lubricity of the molding sand are improved, the plasticity is good, and the size stability of the casting piece is good; the wet strength is high, the high-temperature collapsibility is good, the recycling is easy, the finished-product rate of the casting piece is high and the molding sand is suitable for large-scale industrial production.

Description

A kind of recyclable good permeability casting sand and preparation method thereof
Technical field
The present invention relates to casting field, relate in particular to a kind of recyclable good permeability casting sand and preparation method thereof.
Background technology
Molding sand is in casting, to be used for the material of moulding.Molding sand is generally mixed according to a certain percentage by Modeling Materials such as Foundry sand, moulding sand binder and additional things, also available natural silica sand argillaceous.The recyclability of molding sand is bad at present, and the sand serviceability of recovery is bad, also has gas permeability bad, and foundry goods easily has pore; It is exactly dispersed bad having again, sand Boardy Feeling, and molding is perishable; Also the molding sand plasticity that has is good, wet strength is high, but the phenomenon such as sand beans are many, and collapsibility is bad needs to improve.
Summary of the invention
The object of the present invention is to provide a kind of recyclable good permeability casting sand and preparation method thereof, this sand permeability is good, reduced the generation of bleb, and can recycle, the dispersiveness of molding sand and lubricity, plasticity is good, casting dimension good stability, molding sand wet strength is high, and high temperature collapsibility is good.
Technical scheme of the present invention is as follows:
A recyclable good permeability casting sand, is characterized in that being made by the raw material of following weight portion: old sand 2280-2400, fresh sand 80-120, bentonite 16-24, clay 100-120, furane resins 40-45, coal dust 16-20, PAG 4-5, phosphoric acid 5-6, tall oil 3-5, cationic starch 2-3, Artemisia Glue 3-5, Modified Quartz Sand 100-120, water are appropriate;
Described Modified Quartz Sand is made by the raw material of following weight portion: quartz sand 90-100, stearic acid 1-2, atoleine 3-5, graphene oxide 8-10, glass tiny balloon 4-6, dolomol 1-2, polyamide wax micropowder 2-3, castor oil acid polyester 2-3, vaseline 2-3; Preparation method is: quartz sand is sent into calcining furnace, and at 1850-1950 ℃, calcining fusing, is ground into the particle that particle diameter is 0.5-2mm, adds other residual components, grinds 30-40 minute, obtains.
The preparation method of described recyclable good permeability casting sand, is characterized in that comprising the following steps:
(1) clay is pulverized, added the water of 7-9% weight portion to mix, granulation, particle diameter, at 0.5-2mm, is sent into calcining furnace, and sintering at 800-1000 ℃ takes out, and polishes to surface roughness≤0.2mm, obtains clay particle;
(2) bentonite, furane resins, coal dust, PAG, tall oil, cationic starch, Artemisia Glue are mixed, add water to stir into the slurry that solid content is 40-50%, add phosphoric acid, then grind to form 30-70 order slurry;
(3) other residual components are mixed, add the clay particle that (1) step obtains, the slurry that (2) step obtains, grinding distribution is even, obtains.
Beneficial effect of the present invention
Type of the present invention, by using clay, through granulation, has increased type sand permeability, has reduced the generation of bleb, and can recycle; By using Modified Quartz Sand, increased dispersiveness and the lubricity of molding sand, plasticity is good, casting dimension good stability; Molding sand wet strength of the present invention is high, and high temperature collapsibility is good, easily reclaims, and casting yield is high, is applicable to large-scale industrial production.
The specific embodiment
A recyclable good permeability casting sand, by following weight portion (kilogram) raw material make: old sand 2300, fresh sand 90, bentonite 20, clay 110, furane resins 43, coal dust 18, PAG 4.5, phosphoric acid 5.5, tall oil 4, cationic starch 2.5, Artemisia Glue 4, Modified Quartz Sand 110, water are appropriate;
Described Modified Quartz Sand by following weight portion (kilogram) raw material make: quartz sand 95, stearic acid 1.5, atoleine 4, graphene oxide 9, glass tiny balloon 5, dolomol 1.5, polyamide wax micropowder 2.5, castor oil acid polyester 2.5, vaseline 2.5; Preparation method is: quartz sand is sent into calcining furnace, and at 1900 ℃, calcining fusing, is ground into the particle that particle diameter is 0.5-2mm, adds other residual components, grinds 35 minutes, obtains.
The preparation method of described recyclable good permeability casting sand, comprises the following steps:
(1) clay is pulverized, added the water of 8% weight portion to mix, granulation, particle diameter, at 0.5-2mm, is sent into calcining furnace, and sintering at 900 ℃ takes out, and polishes to surface roughness≤0.2mm, obtains clay particle;
(2) bentonite, furane resins, coal dust, PAG, tall oil, cationic starch, Artemisia Glue are mixed, adding water to stir into solid content is 45% slurry, adds phosphoric acid, then grinds to form 30-70 order slurry;
(3) other residual components are mixed, add the clay particle that (1) step obtains, the slurry that (2) step obtains, grinding distribution is even, obtains.
The sand test data that the present embodiment obtains are as follows: green compression strength is 160KPa, gas permeability 140, and hot green tensile strength is 3KPa, normal temperature green tensile strength is 25KPa.

Claims (2)

1. a recyclable good permeability casting sand, is characterized in that being made by the raw material of following weight portion: old sand 2280-2400, fresh sand 80-120, bentonite 16-24, clay 100-120, furane resins 40-45, coal dust 16-20, PAG 4-5, phosphoric acid 5-6, tall oil 3-5, cationic starch 2-3, Artemisia Glue 3-5, Modified Quartz Sand 100-120, water are appropriate;
Described Modified Quartz Sand is made by the raw material of following weight portion: quartz sand 90-100, stearic acid 1-2, atoleine 3-5, graphene oxide 8-10, glass tiny balloon 4-6, dolomol 1-2, polyamide wax micropowder 2-3, castor oil acid polyester 2-3, vaseline 2-3; Preparation method is: quartz sand is sent into calcining furnace, and at 1850-1950 ℃, calcining fusing, is ground into the particle that particle diameter is 0.5-2mm, adds other residual components, grinds 30-40 minute, obtains.
2. the preparation method of recyclable good permeability casting sand according to claim 1, is characterized in that comprising the following steps:
(1) clay is pulverized, added the water of 7-9% weight portion to mix, granulation, particle diameter, at 0.5-2mm, is sent into calcining furnace, and sintering at 800-1000 ℃ takes out, and polishes to surface roughness≤0.2mm, obtains clay particle;
(2) bentonite, furane resins, coal dust, PAG, tall oil, cationic starch, Artemisia Glue are mixed, adding water to stir into solid content is 45% slurry, adds phosphoric acid, then grinds to form 30-70 order slurry;
(3) other residual components are mixed, add the clay particle that (1) step obtains, the slurry that (2) step obtains, grinding distribution is even, obtains.
CN201410416627.5A 2014-08-22 2014-08-22 A kind of recyclable good permeability casting sand and preparation method thereof Expired - Fee Related CN104174809B (en)

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CN104174809B CN104174809B (en) 2016-07-06

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104646598A (en) * 2015-01-22 2015-05-27 安徽省繁昌县皖南阀门铸造有限公司 Moulding sands easy to recycle 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
CN104841853A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 Fast-radiating easy-to-collapse casting sand and preparation method thereof
CN104841859A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 Environmental molding sand and preparation method thereof
CN104841851A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 Environment-friendly energy-saving sand and production method thereof
CN104841852A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 High permeability heavy casting moulding sand and preparation method thereof
CN104874720A (en) * 2015-05-20 2015-09-02 柳州市百田机械有限公司 Casting molding sand
CN104889318A (en) * 2015-06-08 2015-09-09 含山县东山德雨球墨铸造厂 Preparation method of steel casting moulding sand
CN105057564A (en) * 2015-08-19 2015-11-18 合肥市田源精铸有限公司 Molding sand with used sand recycled
CN106077437A (en) * 2016-06-22 2016-11-09 马鞍山市创诚铸造有限公司 A kind of highly-breathable molding sand using nano-silicon modified animal glue as bonding agent and preparation method thereof
CN106077434A (en) * 2016-08-18 2016-11-09 江阴联华铸造有限公司 High ventilative easy defeated and dispersed core sand of a kind of automotive casting and preparation method thereof
CN107457348A (en) * 2017-09-29 2017-12-12 马鞍山松鹤信息科技有限公司 A kind of heavy castings molding sand and preparation method thereof
CN108568493A (en) * 2018-05-11 2018-09-25 佛山市高明利钢精密铸造有限公司 A kind of preparation method of moulding sand for casting
CN108568492A (en) * 2018-05-11 2018-09-25 佛山市高明利钢精密铸造有限公司 A kind of preparation method of the special molding sand of hot investment casting
CN109047645A (en) * 2018-09-30 2018-12-21 宁波嘉达精密铸造有限公司 A kind of sand mold casting mold and the method for preparing bucket tooth tooth tip using the sand mold casting mold

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JPH11114654A (en) * 1997-10-09 1999-04-27 Sintokogio Ltd Preparation of molding sand for green mold
CN101934344A (en) * 2010-09-02 2011-01-05 吴江市液铸液压件铸造有限公司 Moulding sand for vertically divided box-free shoot-squeeze moulding line
CN102728784A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Clay-type molding sand and preparation method thereof
CN103030371A (en) * 2012-12-13 2013-04-10 马鞍山市华宇环保设备制造有限公司 Method for manufacturing brick by high-content municipal sludge
CN103521690A (en) * 2013-10-16 2014-01-22 合肥市田源精铸有限公司 Easily-collapsible mud core molding sand and preparation method thereof
CN103521689A (en) * 2013-10-16 2014-01-22 合肥市田源精铸有限公司 Molding sand for recycling old sand and preparation method thereof
CN103586399A (en) * 2013-10-16 2014-02-19 昌利锻造有限公司 Molding sand capable of quick air permeation and heat dissipation and preparation method thereof
CN103586395A (en) * 2013-10-16 2014-02-19 昌利锻造有限公司 Molding sand for automatic production line and preparation method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11114654A (en) * 1997-10-09 1999-04-27 Sintokogio Ltd Preparation of molding sand for green mold
CN101934344A (en) * 2010-09-02 2011-01-05 吴江市液铸液压件铸造有限公司 Moulding sand for vertically divided box-free shoot-squeeze moulding line
CN102728784A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Clay-type molding sand and preparation method thereof
CN103030371A (en) * 2012-12-13 2013-04-10 马鞍山市华宇环保设备制造有限公司 Method for manufacturing brick by high-content municipal sludge
CN103521690A (en) * 2013-10-16 2014-01-22 合肥市田源精铸有限公司 Easily-collapsible mud core molding sand and preparation method thereof
CN103521689A (en) * 2013-10-16 2014-01-22 合肥市田源精铸有限公司 Molding sand for recycling old sand and preparation method thereof
CN103586399A (en) * 2013-10-16 2014-02-19 昌利锻造有限公司 Molding sand capable of quick air permeation and heat dissipation and preparation method thereof
CN103586395A (en) * 2013-10-16 2014-02-19 昌利锻造有限公司 Molding sand for automatic production line and preparation method thereof

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104646598A (en) * 2015-01-22 2015-05-27 安徽省繁昌县皖南阀门铸造有限公司 Moulding sands easy to recycle 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
CN104841853A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 Fast-radiating easy-to-collapse casting sand and preparation method thereof
CN104841859A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 Environmental molding sand and preparation method thereof
CN104841851A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 Environment-friendly energy-saving sand and production method thereof
CN104841852A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 High permeability heavy casting moulding sand and preparation method thereof
CN104874720A (en) * 2015-05-20 2015-09-02 柳州市百田机械有限公司 Casting molding sand
CN104889318A (en) * 2015-06-08 2015-09-09 含山县东山德雨球墨铸造厂 Preparation method of steel casting moulding sand
CN105057564A (en) * 2015-08-19 2015-11-18 合肥市田源精铸有限公司 Molding sand with used sand recycled
CN106077437A (en) * 2016-06-22 2016-11-09 马鞍山市创诚铸造有限公司 A kind of highly-breathable molding sand using nano-silicon modified animal glue as bonding agent and preparation method thereof
CN106077434A (en) * 2016-08-18 2016-11-09 江阴联华铸造有限公司 High ventilative easy defeated and dispersed core sand of a kind of automotive casting and preparation method thereof
CN107457348A (en) * 2017-09-29 2017-12-12 马鞍山松鹤信息科技有限公司 A kind of heavy castings molding sand and preparation method thereof
CN108568493A (en) * 2018-05-11 2018-09-25 佛山市高明利钢精密铸造有限公司 A kind of preparation method of moulding sand for casting
CN108568492A (en) * 2018-05-11 2018-09-25 佛山市高明利钢精密铸造有限公司 A kind of preparation method of the special molding sand of hot investment casting
CN109047645A (en) * 2018-09-30 2018-12-21 宁波嘉达精密铸造有限公司 A kind of sand mold casting mold and the method for preparing bucket tooth tooth tip using the sand mold casting mold
CN109047645B (en) * 2018-09-30 2020-08-21 宁波嘉达精密铸造有限公司 Sand casting mold and method for preparing bucket tooth tip by using same

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