CN102728784A - Clay-type molding sand and preparation method thereof - Google Patents
Clay-type molding sand and preparation method thereof Download PDFInfo
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- CN102728784A CN102728784A CN201210186998XA CN201210186998A CN102728784A CN 102728784 A CN102728784 A CN 102728784A CN 201210186998X A CN201210186998X A CN 201210186998XA CN 201210186998 A CN201210186998 A CN 201210186998A CN 102728784 A CN102728784 A CN 102728784A
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Abstract
The invention discloses a clay-type molding sand and a preparation method thereof. The method is as below: weighing raw materials of, by weight, 80-100 parts of recycling sand, 10-15 parts of chromite sand, 3-8 parts of pulverized coal, 1-3 parts of sepiolite, 10-20 parts of calcium bentonite raw ore, 1-3 parts of fine-grained magnesia, 0.5-1.5 parts of furan resin, 1-3 parts of flour, 2-4 parts of steel fiber and the balance of water; mixing the materials evenly; carrying out dry mixing for 3-5 minutes; adding water; and carrying out wet mixing for 5-8 minutes; and carrying out mold casting to obtain the clay-type molding sand. The clay-type molding sand of the invention has a reasonable formula; recycling sand can be fully utilized; usage of flour and furan resin as adhesives has merits of good cohesive force, smoothness and rapid hardening; and addition of steel fiber enhances the strength of the molding sand.
Description
Technical field
The present invention relates to casting technology field, be specifically related to a kind of clay-beaded sand and preparation method thereof.
Background technology
The effect of molding sand in Foundry Production is very important; The casting wasted product that causes because of the poor quality of molding sand accounts for 30～50% of the total waste product of foundry goods; Usually the requirement to molding sand has intensity and heat endurance, flowability, plasticity, gas permeability and collapsibility; Promptly whether molding sand destroys easily behind casting solidification, the performance of whether removing from foundry goods easily.
At present, in the preparation process of molding sand, generally be mixed and made into by a certain percentage by fresh sand, old sand, binding agent and auxiliary material.
Summary of the invention
Deficiency and defective in order to alleviate prior art the object of the present invention is to provide a kind of clay-beaded sand and preparation method thereof.
The present invention adopts following technical scheme to achieve these goals:
Clay-beaded sand, the weight portion of its constitutive material is: return sand 80-100, chromite sand 10-15, coal dust 3-8, sepiolite 1-3, raw ore of calcium base bentonite 10-20, particulate magnesia 1-3, furane resins 0.5-1.5, flour 1-3, steel fibre 2-4, water is an amount of.
Clay-beaded sand, the weight portion of its constitutive material is: return sand 90, chromite sand 12, coal dust 5, sepiolite 2, raw ore of calcium base bentonite 15, particulate magnesia 2, furane resins 1, flour 2, steel fibre 3, water is an amount of.
The preparation method of clay-beaded sand; Comprise: the weight portion by constitutive material takes by weighing return sand, chromite sand, coal dust, sepiolite, raw ore of calcium base bentonite, particulate magnesia, furane resins, flour and steel fibre, mixes, and does and mixes 3-5 minute; Add entry again, wet mixing 5-8 minute.
Beneficial effect of the present invention:
Clay-beaded sand prescription of the present invention is reasonable, utilizes return sand to be the master, can make full use of, and adopts flour, furane resins as binding agent, and cohesive force is good, and is smooth, and simultaneously, sclerosis is fast, increases steel fibre, helps increasing sand bond.
The specific embodiment
Embodiment 1: clay-beaded sand, the weight portion of its constitutive material is: return sand 80, chromite sand 10, coal dust 3, sepiolite 1, raw ore of calcium base bentonite 10, particulate magnesia 1, furane resins 0.5, flour 1, steel fibre 2, water is an amount of.
The preparation method of clay-beaded sand; Comprise: the weight portion by constitutive material takes by weighing return sand, chromite sand, coal dust, sepiolite, raw ore of calcium base bentonite, particulate magnesia, furane resins, flour and steel fibre; Mix, do and mixed 3-5 minute, add entry again; Wet mixing 5-8 minute, the mould assembly cast obtained.
Embodiment 2: clay-beaded sand, the weight portion of its constitutive material is: return sand 90, chromite sand 12, coal dust 5, sepiolite 2, raw ore of calcium base bentonite 15, particulate magnesia 2, furane resins 1, flour 2, steel fibre 3, water is an amount of.
The preparation method of clay-beaded sand; Comprise: the weight portion by constitutive material takes by weighing return sand, chromite sand, coal dust, sepiolite, raw ore of calcium base bentonite, particulate magnesia, furane resins, flour and steel fibre; Mix, do and mixed 3-5 minute, add entry again; Wet mixing 5-8 minute, the mould assembly cast obtained.
Embodiment 3: clay-beaded sand, the weight portion of its constitutive material is: return sand 100, chromite sand 15, coal dust 8, sepiolite 3, raw ore of calcium base bentonite 20, particulate magnesia 3, furane resins 1.5, flour 3, steel fibre 4, water is an amount of.
The preparation method of clay-beaded sand; Comprise: the weight portion by constitutive material takes by weighing return sand, chromite sand, coal dust, sepiolite, raw ore of calcium base bentonite, particulate magnesia, furane resins, flour and steel fibre; Mix, do and mixed 3-5 minute, add entry again; Wet mixing 5-8 minute, the mould assembly cast obtained.
Clay-beaded sand performance of the present invention: gas permeability greater than 50, green compression strength is 75-85KPA, shatter index (j :) 80-83%.
Claims (3)
1. clay-beaded sand; The weight portion that it is characterized in that its constitutive material is: return sand 80-100, chromite sand 10-15, coal dust 3-8, sepiolite 1-3, raw ore of calcium base bentonite 10-20, particulate magnesia 1-3, furane resins 0.5-1.5, flour 1-3, steel fibre 2-4, water is an amount of.
2. clay-beaded sand according to claim 1; The weight portion that it is characterized in that its constitutive material is: return sand 90, chromite sand 12, coal dust 5, sepiolite 2, raw ore of calcium base bentonite 15, particulate magnesia 2, furane resins 1, flour 2, steel fibre 3, water is an amount of.
3. the preparation method of a clay-beaded sand as claimed in claim 1; It is characterized in that comprising: the weight portion by constitutive material takes by weighing return sand, chromite sand, coal dust, sepiolite, raw ore of calcium base bentonite, particulate magnesia, furane resins, flour and steel fibre; Mix; Do and mixed 3-5 minute, add entry again, wet mixing 5-8 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210186998.XA CN102728784B (en) | 2012-06-08 | 2012-06-08 | Clay-type molding sand and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210186998.XA CN102728784B (en) | 2012-06-08 | 2012-06-08 | Clay-type molding sand and preparation method thereof |
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| CN102728784A true CN102728784A (en) | 2012-10-17 |
| CN102728784B CN102728784B (en) | 2014-03-12 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521694A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Sepiolite molding sand and preparation method thereof |
| CN103521685A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Modified sand of nano sepiolite, and preparation method thereof |
| CN104174809A (en) * | 2014-08-22 | 2014-12-03 | 合肥江淮铸造有限责任公司 | Recyclable casting molding sand with good air permeability and preparation method of sand |
| CN104226889A (en) * | 2014-09-24 | 2014-12-24 | 河南省西峡汽车水泵股份有限公司 | Casting molding sand with regenerated dedusting ash and preparation technology of casting molding sand |
| CN104475652A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | Anti-shakeout molding sand and preparation method thereof |
| CN104475662A (en) * | 2014-12-01 | 2015-04-01 | 昌利锻造有限公司 | Molding sand for magnesium alloy castings and preparation method of molding sand |
| CN104493069A (en) * | 2014-11-26 | 2015-04-08 | 马鞍山市恒达耐磨材料有限责任公司 | Molding sand for miniature cast steel members and preparation method thereof |
| CN104646599A (en) * | 2015-01-22 | 2015-05-27 | 安徽省繁昌县皖南阀门铸造有限公司 | Heat-resisting molding sand with high bonding performance and preparation method thereof |
| CN105537504A (en) * | 2016-02-15 | 2016-05-04 | 芜湖市金贸流体科技股份有限公司 | Clay green sand applied to carbon steel castings and preparation method of clay green sand |
| CN105964885A (en) * | 2016-03-10 | 2016-09-28 | 繁昌县琪鑫铸造有限公司 | Ball clay molding sand used for ball-milling iron cast and preparing method thereof |
| CN110076285A (en) * | 2019-04-26 | 2019-08-02 | 西安工业大学 | A kind of high temperature resistant resistance to deformation core material and preparation method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521694A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Sepiolite molding sand and preparation method thereof |
| CN103521685A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Modified sand of nano sepiolite, and preparation method thereof |
| CN104174809A (en) * | 2014-08-22 | 2014-12-03 | 合肥江淮铸造有限责任公司 | Recyclable casting molding sand with good air permeability and preparation method of sand |
| CN104174809B (en) * | 2014-08-22 | 2016-07-06 | 合肥江淮铸造有限责任公司 | A kind of recyclable good permeability casting sand and preparation method thereof |
| CN104226889A (en) * | 2014-09-24 | 2014-12-24 | 河南省西峡汽车水泵股份有限公司 | Casting molding sand with regenerated dedusting ash and preparation technology of casting molding sand |
| CN104475652A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | Anti-shakeout molding sand and preparation method thereof |
| CN104493069A (en) * | 2014-11-26 | 2015-04-08 | 马鞍山市恒达耐磨材料有限责任公司 | Molding sand for miniature cast steel members and preparation method thereof |
| CN104475662A (en) * | 2014-12-01 | 2015-04-01 | 昌利锻造有限公司 | Molding sand for magnesium alloy castings and preparation method of molding sand |
| CN104646599A (en) * | 2015-01-22 | 2015-05-27 | 安徽省繁昌县皖南阀门铸造有限公司 | Heat-resisting molding sand with high bonding performance and preparation method thereof |
| CN105537504A (en) * | 2016-02-15 | 2016-05-04 | 芜湖市金贸流体科技股份有限公司 | Clay green sand applied to carbon steel castings and preparation method of clay green sand |
| CN105964885A (en) * | 2016-03-10 | 2016-09-28 | 繁昌县琪鑫铸造有限公司 | Ball clay molding sand used for ball-milling iron cast and preparing method thereof |
| CN110076285A (en) * | 2019-04-26 | 2019-08-02 | 西安工业大学 | A kind of high temperature resistant resistance to deformation core material and preparation method thereof |
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|---|---|
| CN102728784B (en) | 2014-03-12 |
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Application publication date: 20121017 Assignee: FANCHANG COUNTY TIANHE MACHINERY CO., LTD. Assignor: Fanchang Qixiang Casting Factory Contract record no.: 2014340000137 Denomination of invention: Clay-type molding sand and preparation method thereof Granted publication date: 20140312 License type: Exclusive License Record date: 20140703 |
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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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