CN103498061A - High-aluminium bauxite cast-moulding sand and preparation method thereof - Google Patents
High-aluminium bauxite cast-moulding sand and preparation method thereof Download PDFInfo
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- CN103498061A CN103498061A CN201310481201.3A CN201310481201A CN103498061A CN 103498061 A CN103498061 A CN 103498061A CN 201310481201 A CN201310481201 A CN 201310481201A CN 103498061 A CN103498061 A CN 103498061A
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- aluminium
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- sand
- cast
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- 239000004411 aluminium Substances 0.000 title claims abstract description 33
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 33
- 239000004576 sand Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000000465 moulding Methods 0.000 title abstract description 8
- 229910001570 bauxite Inorganic materials 0.000 title abstract 8
- 239000000843 powder Substances 0.000 claims abstract description 28
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000001354 calcination Methods 0.000 claims abstract description 16
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims abstract description 9
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 9
- 235000005822 corn Nutrition 0.000 claims abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 7
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 claims abstract description 7
- 235000011006 sodium potassium tartrate Nutrition 0.000 claims abstract description 7
- 235000005074 zinc chloride Nutrition 0.000 claims abstract description 7
- 239000011592 zinc chloride Substances 0.000 claims abstract description 7
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 4
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000323 aluminium silicate Inorganic materials 0.000 claims abstract description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 241000209149 Zea Species 0.000 claims abstract 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052911 sodium silicate Inorganic materials 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 229910001586 aluminite Inorganic materials 0.000 abstract 2
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 235000019795 sodium metasilicate Nutrition 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 25
- 239000003110 molding sand Substances 0.000 description 18
- 238000005266 casting Methods 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 6
- 240000008042 Zea mays Species 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- 206010039509 Scab Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- HIGRAKVNKLCVCA-UHFFFAOYSA-N alumine Chemical compound C1=CC=[Al]C=C1 HIGRAKVNKLCVCA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Mold Materials And Core Materials (AREA)
Abstract
Disclosed are high-aluminium bauxite cast-moulding sand and a preparation method thereof. The high-aluminium bauxite cast-moulding sand is characterized by being made of raw materials including, by weight, 80-90 parts of high-aluminium bauxite, 10-16 parts of dilute phosphoric acid solution, 2-3 parts of seignette salt, 3-4 parts of zinc chloride, 1-2 parts of nanometer titania, 45-50 parts of aluminium silicate, 30-40 parts of corn stalk powder, 2-3 parts of leaves powder, 1-2 parts of aluminite powder, 55-60 parts of bentonite, 4-5 parts of sodium metasilicate and a moderate amount of water. Since the high-aluminium bauxite added with the dilute phosphoric acid solution is subjected to calcination, cohesiveness and breathability of the high-aluminium bauxite are improved; by means of adding the corn stalk powder into the high-aluminium bauxite, breathability of the cast-moulding sand is improved, cost is lowered and environmental protection and energy saving are achieved; being added with the nanometer titania and the aluminite powder, the cast-moulding sand is enabled to be good in thermal conductivity. The high-aluminium bauxite cast-moulding sand is smooth, easy to mould, prone to collapsing at high temperature, fast in cooling, timesaving and environmentally friendly, a foundry piece is less prone to bonding with sand, sand buckling is remarkably reduced, brightness of the foundry piece is greatly improved, and economic benefit is increased.
Description
Technical field
The present invention relates to a kind of casting field, relate in particular to a kind of high-aluminium vanadine foundry sand and preparation method thereof.
Background technology
Molding sand is to be used for the material of moulding in casting.Molding sand is generally mixed according to a certain percentage by molding materials such as Foundry sand, 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, molding sand material footpath is too large, although ventilation property is better, aloxite part surface ratio is more coarse, smooth finish is bad, molding sand material footpath is too little, causes the sand mold ventilation property bad, and aluminium casting has pore to produce.Domestic and international widely used coal dust clay green sand, generally by the mixed system of roughing sand, binding agent, coal dust additive etc. and water, formed, there is certain anti-scab effect and the cost of material is low, production efficiency is high, but its consumption is large, discharge is serious, at the castingprocesses coal dust firing, decompose and produce toxic gas and pollute.
Molding sand, by binding agent difference used, can be divided into clay-bonded sand, sodium silicate sand, cement sand, quartz sand etc., and that with clay-bonded sand, sodium silicate sand and quartz sand, uses is maximum.The effect of molding sand in Foundry Production is very important, and the casting wasted product caused because of the poor quality of molding sand accounts for 30～50% of the total waste product of foundry goods.Usually to the requirement of molding sand, be: 1, there is higher intensity and thermostability, to bear the effect of various external force and high temperature.2, good mobility, the ability that molding sand mutually moves between sand grains under external force or action of gravity own.3, certain plasticity-, molding sand is out of shape under external force, can keep the ability of the shape that gives after external force is removed.4, ventilation property preferably, the molding sand hole sees through the ability of gas.5, high collapsibility, weigh up again grittiness, and after casting solidification, whether molding sand easily destroys, the performance of whether easily removing from foundry goods.
Current casting field development rapidly, higher for the performance requriements of steel casting and ironcasting, thereby require further to promote the performance of molding sand.
Summary of the invention
The object of the present invention is to provide a kind of high-aluminium vanadine foundry sand and preparation method thereof, this molding sand has high ventilation property, collapsibility, can improve the characteristics of foundry goods luminance brightness.
Technical scheme of the present invention is as follows:
A kind of high-aluminium vanadine foundry sand is characterized in that being made by the raw material of following weight part: high-aluminium vanadine 80-90, dilute phosphoric acid solution 10-16, Seignette salt 2-3, zinc chloride 3-4, nano titanium oxide 1-2, pure aluminium silicate 45-50, corn stalk powder 30-40, leaf powder 2-3, aluminium powder 1-2, wilkinite 55-60, Starso 4-5, water are appropriate;
The preparation method of described high-aluminium vanadine foundry sand, it is characterized in that comprising the following steps: after high-aluminium vanadine, dilute phosphoric acid solution are mixed and stirred, put into 620-640 ℃ of calcining furnace calcining 3-4 hour, then, take out, be ground into 200-400 order powder, then add corn stalk powder, leaf powder, aluminium powder, wilkinite, suitable quantity of water, dispersed with stirring, pugging, send into calcining 4-5 hour in 1410-1440 ℃ of calcining furnace, take out and be crushed to the 50-100 order, obtain the calcining material; Seignette salt, zinc chloride, Starso are mixed, grind 20-30 minute, then mix with other remaining component, add water wet mixing 10-15 minute that is equivalent to compound 3-5% and get final product.
Beneficial effect of the present invention
The present invention adds dilute phosphoric acid solution by high-aluminium vanadine, through calcining, has increased the cohesiveness of alumine, ventilation property; In conjunction with adding corn stalk powder, increase the ventilation property of molding sand, reduce costs, and environmental protection and energy saving; By using nano titanium oxide and aluminium powder, make molding sand there is excellent thermal conductivity, molding sand of the present invention is smooth, easy-formation, high temperature easily defeated and dispersed, speed of cooling is fast, saves time, the phenomenon that foundry goods is difficult for scab, peeling significantly reduces, greatly improved the luminance brightness of foundry goods, environmental protection has increased again economic benefit.
Embodiment
A kind of high-aluminium vanadine foundry sand, by the raw material of following weight part (kilogram), made: high-aluminium vanadine 85, dilute phosphoric acid solution 14, Seignette salt 3, zinc chloride 3, nano titanium oxide 1.5, pure aluminium silicate 47, corn stalk powder 35, leaf powder 2.5, aluminium powder 1.5, wilkinite 57, Starso 4.5, water are appropriate;
The preparation method of described high-aluminium vanadine foundry sand, comprise the following steps: after high-aluminium vanadine, dilute phosphoric acid solution are mixed and stirred, put into 630 ℃ of calcining furnace calcinings 3 hours, then, take out, be ground into 300 order powder, then add corn stalk powder, leaf powder, aluminium powder, wilkinite, suitable quantity of water, dispersed with stirring, pugging, send in 1430 ℃ of calcining furnaces and calcine 4 hours, take out and be crushed to 70 orders, obtain the calcining material; Seignette salt, zinc chloride, Starso are mixed, grind 26 minutes, then mix with other remaining component, add the water wet mixing 13 minutes that is equivalent to compound 4% and get final product.
The processing performance of the molding sand that the present invention makes:
Green compression strength: 0.122Mpa, air penetrability: 105%, hot green tensile strength: 408Kpa, shatter index: 87%.
Claims (2)
1. a high-aluminium vanadine foundry sand is characterized in that being made by the raw material of following weight part: high-aluminium vanadine 80-90, dilute phosphoric acid solution 10-16, Seignette salt 2-3, zinc chloride 3-4, nano titanium oxide 1-2, pure aluminium silicate 45-50, corn stalk powder 30-40, leaf powder 2-3, aluminium powder 1-2, wilkinite 55-60, Starso 4-5, water are appropriate.
2. the preparation method of high-aluminium vanadine foundry sand according to claim 1, it is characterized in that comprising the following steps: after high-aluminium vanadine, dilute phosphoric acid solution are mixed and stirred, put into 620-640 ℃ of calcining furnace calcining 3-4 hour, then, take out, be ground into 200-400 order powder, then add corn stalk powder, leaf powder, aluminium powder, wilkinite, suitable quantity of water, dispersed with stirring, pugging, send into calcining 4-5 hour in 1410-1440 ℃ of calcining furnace, take out and be crushed to the 50-100 order, obtain the calcining material; Seignette salt, zinc chloride, Starso are mixed, grind 20-30 minute, then mix with other remaining component, add water wet mixing 10-15 minute that is equivalent to compound 3-5% and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310481201.3A CN103498061A (en) | 2013-10-16 | 2013-10-16 | High-aluminium bauxite cast-moulding sand and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310481201.3A CN103498061A (en) | 2013-10-16 | 2013-10-16 | High-aluminium bauxite cast-moulding sand and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103498061A true CN103498061A (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310481201.3A Pending CN103498061A (en) | 2013-10-16 | 2013-10-16 | High-aluminium bauxite cast-moulding sand and preparation method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN103498061A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057018A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | Casting molding sand and preparation method thereof |
| CN104057019A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | High-efficiency chilling casting sand and preparation method thereof |
| CN104084521A (en) * | 2014-06-13 | 2014-10-08 | 吴江市液铸液压件铸造有限公司 | Additive for casting moulding sand and preparation method and application method thereof |
| CN105170879A (en) * | 2015-09-21 | 2015-12-23 | 蚌埠冠宜型材科技有限公司 | Casting molding sand with strength increased |
| CN106001391A (en) * | 2016-07-29 | 2016-10-12 | 无锡市三峰仪器设备有限公司 | Foundry sand with high air permeability |
| CN110549035A (en) * | 2019-10-14 | 2019-12-10 | 湘潭大学 | Composite powder of submerged arc surfacing high-boron alloy and application method thereof |
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| CN1215384A (en) * | 1996-12-27 | 1999-04-28 | 艾布里亚阿施兰德化学公司 | Molding sand appropriate for the fabrication of cores and molds |
| CN1891376A (en) * | 2006-03-24 | 2007-01-10 | 中国第一重型机械集团公司 | High-aluminium vanadine moulding sand, and its preparing method |
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2013
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057018A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | Casting molding sand and preparation method thereof |
| CN104057019A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | High-efficiency chilling casting sand and preparation method thereof |
| CN104057019B (en) * | 2014-05-28 | 2016-05-18 | 安徽鑫润新型材料有限公司 | A kind of efficient Quench molding sand and preparation method thereof |
| CN104057018B (en) * | 2014-05-28 | 2016-05-18 | 安徽鑫润新型材料有限公司 | A kind of moulding sand for casting and preparation method thereof |
| CN104084521A (en) * | 2014-06-13 | 2014-10-08 | 吴江市液铸液压件铸造有限公司 | Additive for casting moulding sand and preparation method and application method thereof |
| CN104084521B (en) * | 2014-06-13 | 2017-01-11 | 吴江市液铸液压件铸造有限公司 | Additive for casting moulding sand and preparation method and application method thereof |
| CN105170879A (en) * | 2015-09-21 | 2015-12-23 | 蚌埠冠宜型材科技有限公司 | Casting molding sand with strength increased |
| CN106001391A (en) * | 2016-07-29 | 2016-10-12 | 无锡市三峰仪器设备有限公司 | Foundry sand with high air permeability |
| CN110549035A (en) * | 2019-10-14 | 2019-12-10 | 湘潭大学 | Composite powder of submerged arc surfacing high-boron alloy and application method thereof |
| CN110549035B (en) * | 2019-10-14 | 2021-02-26 | 湘潭大学 | Composite powder of submerged arc surfacing high-boron alloy and application method thereof |
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Application publication date: 20140108 |
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