CN101856717A - Ceramsite for precision casting and production method thereof - Google Patents
Ceramsite for precision casting and production method thereof Download PDFInfo
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- CN101856717A CN101856717A CN201010171518A CN201010171518A CN101856717A CN 101856717 A CN101856717 A CN 101856717A CN 201010171518 A CN201010171518 A CN 201010171518A CN 201010171518 A CN201010171518 A CN 201010171518A CN 101856717 A CN101856717 A CN 101856717A
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- ceramsite
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Abstract
The invention discloses ceramsite for precision casting and a production method thereof, belonging to the technical field of materials. The production method comprises the following steps: processing 50-90% of Al2O3 bauxite ores into lump materials, adding the lump materials into calcining kilns to be calcined into clinkers; processing the clinkers and 80-99.5% of SiO2 silicious ores into coarse particles, adding 70-90% of clinkers and 10-30% of silicious ores into an arc furnace to be melted into liquid; the liquid suffering the strong wind from a compressor at the end opening of the arc furnace and nebulizing the liquid materials by blowing; and the nebulized materials forming spheres in the air in a spray chamber, the spheres falling freely in the air and quickly cooling, thus obtaining the spherical or nearly spherical ceramsite.
Description
Technical field
The present invention relates to the material technology field, relate in particular to a kind of casting moulding sand.Also relate to the production method of this casting simultaneously with moulding sand
Background technology
At present a large amount of casting model powders that use, mainly contain two kinds: a kind of is to originate from the natural silica sand or the silica sand of hand breaking, another kind is to be the casting model powder that primary raw material makes with the aluminium vanadine.There are following shortcoming in the natural silica sand or the silica sand of hand breaking in the moulding casting cycle: refractory temperature is not ideal enough; After being heated, silica sand expands, and broken easily, contaminated environment; The coefficient of thermal expansion height of silica sand has repeatedly phase transformation, is easy to produce casting flaw; Silica sand particularly hand breaking sand grains type is bad; Recovery utilization rate is low, and regenerability is bad.And be the casting model powder that primary raw material makes with the aluminium vanadine, cost is higher, the reuse poor-performing.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming and a kind ofly having improved the product collapsibility, having saved the energy of providing, reduced production cost, the reuse performance is good and the ceramsite for precision casting of environmental protection.
Ceramsite for precision casting of the present invention is made by the raw material of following weight portion:
The ripe ore deposit 70-90% of bauxite, silicon ore deposit 10-30%.
Wherein: the ripe ore deposit of bauxite is to contain Al
2O
3The bauxite ore of 50-90% burns till grog; The silicon ore deposit is for containing SiO
2The silicon ore deposit of 80-99.5%.
The production method of ceramsite for precision casting of the present invention comprises the steps:
(1) with Al
2O
3The bauxite ore of 50-90% is processed into the piece material, adds calcining kiln and burns till grog; With grog and SiO
2Coarse granule is processed in the silicon ore deposit of 80-99.5%, adds electric arc furnaces according to the above ratio and utilizes arc discharge to be melt into liquid;
(2) melt liquid is subjected to high wind from compressor at the electric arc furnaces port (air of 86-96m/s is pressed, pressure 4.0-7.5kg/cm
2), liquid material blown out nebulize;
(3) vaporific material forms spheroid in the air of spray chamber, freely descends slowly and lightly in air, and rapidly cooling, and the sand grains that obtains being shaped as sphere or subglobular promptly.
The present invention compared with prior art has tangible beneficial effect, as can be known from the above technical solutions, has reduced production cost, for example uses 80% bauxite ore, and expense is 640 yuan; Use 20% bauxite ore, expense is 24 yuan; Producing 1 ton of product by 1.2 tons of raw material calculates: 800 * 1.2-(640+24) * 1.2=960-796.8=163.2 unit, per tonly can save 163.2 yuan of costs.Because the fusing point in silicon ore deposit is low, make that power consumption per ton reduces by 150 degree electricity in the process of producing product, calculate by 0.6 yuan/degree, per tonly economize 90 yuan of the electricity charge, thereby saved the energy.Use the silicon ore deposit can make the important quality index collapsibility of product improve more than 20%, make the number of times that re-uses of precision casting sand increase 2-3 time, making that product is reusable reaches 14 times, and for the discharging that reduces pollutant, it is significant to reduce environmental pollution.Thereby have environmental protection, high temperature resistant, coefficient of thermal expansion is low, the reuse performance is good characteristics.
Below further specify beneficial effect of the present invention by the specific embodiment.
The specific embodiment
Embodiment 1:
The production method of ceramsite for precision casting comprises the steps:
(1) will contain Al
2O
350% bauxite ore is processed into the piece material, adds calcining kiln and burns till grog; With grog 900kg with contain SiO
280% silicon ore deposit 100kg is processed into coarse granule, adds electric arc furnaces and utilizes arc discharge to be melt into liquid;
(2) melt liquid is subjected to high wind from compressor at the electric arc furnaces port (air of 86m/s is pressed, pressure 7.5kg/cm
2), liquid material blown out nebulize;
(3) vaporific material forms spheroid in the air of spray chamber, freely descends slowly and lightly in air, and rapidly cooling, and the sand grains that obtains being shaped as sphere or subglobular promptly.
After tested, this product records its collapsibility in the time of 1650 ℃ be 21.4%, and cost reduces by 5%.
Embodiment 2:
The production method of ceramsite for precision casting comprises the steps:
(1) will contain Al
2O
370% bauxite ore is processed into the piece material, adds calcining kiln and burns till grog; With grog 800kg with contain SiO
285% silicon ore deposit 200kg is processed into coarse granule, adds electric arc furnaces according to the above ratio and utilizes arc discharge to be melt into liquid;
(2) melt liquid is subjected to high wind from compressor at the electric arc furnaces port (air of 86m/s is pressed, pressure 4.0kg/cm
2), liquid material blown out nebulize;
(3) vaporific material forms spheroid in the air of spray chamber, freely descends slowly and lightly in air, and rapidly cooling, and the sand grains that obtains being shaped as sphere or subglobular promptly.
After tested, this product records its collapsibility in the time of 1650 ℃ be 31.9%, and cost reduces by 8%.
Embodiment 3:
The production method of ceramsite for precision casting comprises the steps:
(1) will contain Al
2O
390% bauxite ore is processed into the piece material, adds calcining kiln and burns till grog; With grog 700kg with contain SiO
299.5% silicon ore deposit 300kg is processed into coarse granule, adds electric arc furnaces according to the above ratio and utilizes arc discharge to be melt into liquid;
(2) melt liquid is subjected to high wind from compressor at the electric arc furnaces port (air of 96m/s is pressed, pressure 6.0kg/cm
2), liquid material blown out nebulize;
(3) vaporific material forms spheroid in the air of spray chamber, freely descends slowly and lightly in air, and rapidly cooling, and the sand grains that obtains being shaped as sphere or subglobular promptly.
After tested, this product records its collapsibility in the time of 1650 ℃ be 46.5%, and cost reduces by 10%.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (3)
1. ceramsite for precision casting is made by the raw material of following weight portion:
The ripe ore deposit 70-90% of bauxite, silicon ore deposit 10-30%.
Wherein: the ripe ore deposit of bauxite is to contain Al
2O
3The bauxite ore of 50-90% burns till grog; The silicon ore deposit is for containing SiO
2The silicon ore deposit of 80-99.5%.
2. the production method of ceramsite for precision casting as claimed in claim 1 comprises the steps:
(1) with Al
2O
3The bauxite ore of 50-90% is processed into the piece material, adds calcining kiln and burns till grog; With grog and SiO
2Coarse granule is processed in the silicon ore deposit of 80-99.5%, adds electric arc furnaces according to the above ratio and is melt into liquid;
(2) melt liquid is subjected to high wind from compressor at the electric arc furnaces port, liquid material is blown out nebulize;
(3) vaporific material forms spheroid in the air of spray chamber, freely descends slowly and lightly in air, and rapidly cooling, and the sand grains that obtains being shaped as sphere or subglobular promptly.
3. the production method of ceramsite for precision casting as claimed in claim 2, wherein: the air of high wind is pressed and is 86-96m/s, and pressure is 4.0-7.5kg/cm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010171518A CN101856717A (en) | 2010-05-13 | 2010-05-13 | Ceramsite for precision casting and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010171518A CN101856717A (en) | 2010-05-13 | 2010-05-13 | Ceramsite for precision casting and production method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN101856717A true CN101856717A (en) | 2010-10-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010171518A Pending CN101856717A (en) | 2010-05-13 | 2010-05-13 | Ceramsite for precision casting and production method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016604A (en) * | 2014-06-20 | 2014-09-03 | 张耀辰 | Special high-strength artificial sand for cement gel |
| CN104493150A (en) * | 2015-01-12 | 2015-04-08 | 河南通宇冶材集团有限公司 | Alumina-silica drainage agent and preparation method thereof |
| CN104557062A (en) * | 2013-10-16 | 2015-04-29 | 太原科技大学 | Spinel casting sand and preparation method thereof |
| CN107042278A (en) * | 2017-03-29 | 2017-08-15 | 华东交通大学 | A kind of piano iron plate casting and molding molding sand and preparation method thereof |
| CN111014567A (en) * | 2019-12-05 | 2020-04-17 | 十堰长江造型材料有限公司 | Novel preparation method of artificial casting sand |
-
2010
- 2010-05-13 CN CN201010171518A patent/CN101856717A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104557062A (en) * | 2013-10-16 | 2015-04-29 | 太原科技大学 | Spinel casting sand and preparation method thereof |
| CN104016604A (en) * | 2014-06-20 | 2014-09-03 | 张耀辰 | Special high-strength artificial sand for cement gel |
| CN104493150A (en) * | 2015-01-12 | 2015-04-08 | 河南通宇冶材集团有限公司 | Alumina-silica drainage agent and preparation method thereof |
| CN107042278A (en) * | 2017-03-29 | 2017-08-15 | 华东交通大学 | A kind of piano iron plate casting and molding molding sand and preparation method thereof |
| CN111014567A (en) * | 2019-12-05 | 2020-04-17 | 十堰长江造型材料有限公司 | Novel preparation method of artificial casting sand |
| CN111014567B (en) * | 2019-12-05 | 2021-07-23 | 十堰长江造型材料有限公司 | Novel preparation method of artificial casting sand |
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Open date: 20101013 |