CN104550685A - Preparation method of environment-friendly type forsterite foundry sand - Google Patents
Preparation method of environment-friendly type forsterite foundry sand Download PDFInfo
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- CN104550685A CN104550685A CN201310488576.2A CN201310488576A CN104550685A CN 104550685 A CN104550685 A CN 104550685A CN 201310488576 A CN201310488576 A CN 201310488576A CN 104550685 A CN104550685 A CN 104550685A
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- forsterite
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Abstract
The invention discloses a preparation method of environment-friendly type forsterite foundry sand. The preparation method mainly adopts a forsterite raw material and clinker calcinated and smashed at the high temperature, and the forsterite raw material and clinker are mutually matched to obtain the foundry sand. The foundry sand does not absorb water and is not self-pulverized after repeatedly baked by molten steel at the high temperature, the hardness is high, and the casting effect is good; a product does not contain free-state silicon dioxide powder, so that silicosis occupational disease in the foundry industry can be eliminated fundamentally; the product can be repeatedly recycled, accordingly, the environment pollution is reduced, and the foundry material cost is reduced.
Description
Technical field
The invention belongs to casting technology field, be specifically related to a kind of preparation method of environment protection type casting forsterite sand.
Background technology
In casting industry, the use amount of casting model powder is very large, uses traditional casting model powder, occurs the phenomenon of foundry goods scab, burning into sand sometimes, and can produce optical heat radiation with when baking kilning type, mould assembling, soot flies upward, and causes environmental pollution, CO and CO released during casting
2affect the healthy of operating personnel, the silica dust of free state wherein also has and causes silicosis occupational disease.The recycling rate of waterused of old sand is low, discards in a large number especially the enterprise without sand reclaiming plant, and waste sand discharge occupation of land and environmental pollution seriously, turn improve the production material consumption cost of factory's foundry goods simultaneously.
Summary of the invention
In order to overcome the above-mentioned technical problem that prior art field exists, the object of the invention is to, a kind of preparation method of environment protection type casting forsterite sand is provided, this product can reuse, not to environment, can not produce infringement to the healthy of operating personnel, casting effect is good.
The preparation method of environment protection type casting forsterite sand provided by the invention, its production process is, forsterite is placed in industry kiln 1200 ~ 1550
0c carries out carrying out crushing and screening sand after calcining was solidified by wind cooling temperature lowering after 1 ~ 1.5 hour, obtains forsterite casting model powder by after this grog forsterite sand 14% ~ 50% and raw material forsterite sand 86% ~ 50% mix.Forsterite after calcining is broken for 30 ~ 270 orders.Raw material forsterite forsterite is directly crushed to 30 ~ 270 orders to obtain.Add in forsterite casting sand No. 1, the Guilin powder of its weight 1.6% ~ 2%, the sodium bentonite of its weight 7% and 5.5% water mixing after can obtain damp model, core sand, moulding after cast.Old sand adds with after 20 ~ 30 times, when finding that sand bond decreases, can be used for casting after mixing after the old sand of 100% adds No. 1, Guilin powder 0.2% ~ 0.5%, sodium bentonite 1% ~ 3% and water 6.5%.
The preparation method of environment protection type casting forsterite sand provided by the invention, its beneficial effect is, can reuse, and not to environment, can not produce infringement to the healthy of operating personnel, casting effect is good.
Detailed description of the invention
Below in conjunction with an embodiment, the preparation method of environment protection type casting forsterite sand provided by the invention is described in detail.
Embodiment
The preparation method of the environment protection type casting forsterite sand of the present embodiment, its production process is, forsterite is placed in industry kiln 1250
0c carries out carrying out crushing and screening sand after calcining was solidified by wind cooling temperature lowering after 1 hour, obtains forsterite casting model powder by after this grog forsterite sand 50% and raw material forsterite sand 50% mix.Forsterite after calcining is broken for 30 orders.Raw material forsterite forsterite is directly crushed to 30 orders to obtain.
Claims (1)
1. a preparation method for environment protection type casting forsterite sand, is characterized in that: forsterite is placed in industry kiln 1200 ~ 1550
0c carried out calcining after 1 ~ 1.5 hour, carried out crushing and screening sand after being solidified by wind cooling temperature lowering, obtained forsterite casting model powder by after this grog forsterite sand 14% ~ 50% and raw material forsterite sand 86% ~ 50% mix; Forsterite after calcining is broken for 30 ~ 270 orders; Raw material forsterite forsterite is directly crushed to 30 ~ 270 orders to obtain; Add in forsterite casting sand No. 1, the Guilin powder of its weight 1.6% ~ 2%, the sodium bentonite of its weight 7% and 5.5% water mixing after can obtain damp model, core sand, moulding after cast; Old sand adds with after 20 ~ 30 times, when finding that sand bond decreases, can be used for casting after mixing after the old sand of 100% adds No. 1, Guilin powder 0.2% ~ 0.5%, sodium bentonite 1% ~ 3% and water 6.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310488576.2A CN104550685A (en) | 2013-10-18 | 2013-10-18 | Preparation method of environment-friendly type forsterite foundry sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310488576.2A CN104550685A (en) | 2013-10-18 | 2013-10-18 | Preparation method of environment-friendly type forsterite foundry sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104550685A true CN104550685A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310488576.2A Pending CN104550685A (en) | 2013-10-18 | 2013-10-18 | Preparation method of environment-friendly type forsterite foundry sand |
Country Status (1)
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| CN (1) | CN104550685A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513563A (en) * | 2016-11-30 | 2017-03-22 | 成都嘉新特种精密铸造有限公司 | Preparation method of foundry sand |
| CN106734851A (en) * | 2016-11-30 | 2017-05-31 | 成都嘉新特种精密铸造有限公司 | A kind of sand mold manufacture method |
| CN106734856A (en) * | 2016-11-30 | 2017-05-31 | 成都嘉新特种精密铸造有限公司 | A kind of cast waste sand recoverying and utilizing method |
-
2013
- 2013-10-18 CN CN201310488576.2A patent/CN104550685A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513563A (en) * | 2016-11-30 | 2017-03-22 | 成都嘉新特种精密铸造有限公司 | Preparation method of foundry sand |
| CN106734851A (en) * | 2016-11-30 | 2017-05-31 | 成都嘉新特种精密铸造有限公司 | A kind of sand mold manufacture method |
| CN106734856A (en) * | 2016-11-30 | 2017-05-31 | 成都嘉新特种精密铸造有限公司 | A kind of cast waste sand recoverying and utilizing method |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |