CN102674727A - Dry forsterite sand for full-mold casting and preparation method for dry forsterite sand - Google Patents
Dry forsterite sand for full-mold casting and preparation method for dry forsterite sand Download PDFInfo
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- CN102674727A CN102674727A CN2012101355721A CN201210135572A CN102674727A CN 102674727 A CN102674727 A CN 102674727A CN 2012101355721 A CN2012101355721 A CN 2012101355721A CN 201210135572 A CN201210135572 A CN 201210135572A CN 102674727 A CN102674727 A CN 102674727A
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- forsterite
- dry
- sand
- forsterite sand
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Abstract
The invention discloses dry forsterite sand for full-mould casting and a preparation method for the dry forsterite sand. The dry forsterite sand is prepared from the following raw materials in part by weight: 80 to 96 parts of forsterite sand, 2 to 3 parts of graphite powder and 1 to 3 parts of organic resin. The preparation method comprises the following steps of: mixing the forsterite sand, the graphite powder and the organic resin in a proportion, preblending, dry-mixing, adding tap water for wet mixed milling, drying and sieving to obtain the dry forsterite sand for the full-mould casting. The dry forsterite sand for the full-mould casting can overcome the defects that the flowability and the filling property of artificial forsterite sand are insufficient, the forsterite sand is slightly alkaline and is only applicable to the production of alkaline high-alloy steel castings, and the application range is too narrow, and promotes the development of full-mold casting industry.
Description
Technical field
The present invention relates to a kind of cavityless casting and fill dry sand, particularly a kind of special-purpose dry sand of filling of new cavityless casting that forsterite sand is carried out overlay film and denaturing treatment.
Background technology
General forsterite sand is artificial sand, triangular in shape or polygon, and the filling performance that flows is poor, and the forsterite sand meta-alkalescence, and application surface is narrower.
Summary of the invention
Technical problem to be solved by this invention provides a kind of cavityless casting forsterite dry sand and preparation method thereof; Can improve mobile filling property deficiency of artificial forsterite sand and forsterite meta-alkalescence; Be only applicable to alkaline high quality steel castings production, the defective that application surface is too narrow.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is: a kind of cavityless casting forsterite dry sand and preparation method thereof comprises following raw material in weight part: forsterite sand 80-96, Graphite Powder 99 2-3, organic resin 1-3.
Preferably, a kind of cavityless casting forsterite dry sand comprises following raw material in weight part: forsterite sand 85-96, Graphite Powder 99 2-3, organic resin 1-3.
A kind of screening formulation of cavityless casting forsterite dry sand comprises following raw material in weight part: forsterite sand 95, Graphite Powder 99 3, organic resin 2.
With forsterite sand, Graphite Powder 99 and organic resin mix according to proportioning, carry out premixing and do and mix, and add tap water then and carry out wet mixing and grind, dry again, sieve cavityless casting forsterite dry sand.
Cavityless casting forsterite dry sand provided by the invention had both kept forsterite sand and had not contained free SiO2, can stop the environmental-protecting performance of silicosis; Can keep forsterite sand does not again have phase transformation, performance that reusability is good in receiving thermal process, replace silica sand comprehensively and use; It is poor to the most important thing is to solve the artificial forsterite sand filling property that flows, and high temperature is alkalescence, and the problem that Application Areas is narrow partially improves the quality of novel cavityless casting process matching process materials, and the promotion cavityless casting already develops.
Cavityless casting forsterite dry sand preparation method provided by the invention, technology is simple, and is convenient for production.
Embodiment
Below in conjunction with embodiment the present invention is described further, but the present invention is not limited.
The raw material and the important parameter thereof that relate among the embodiment are following:
Forsterite sand: MgO>=38%, SiO2≤38%, vector≤10% that burns, granularity 20 orders and 30 orders.
Graphite Powder 99: C >=90%, granularity 200 orders.
Organic resin: select powder degree 140 orders in Guilin for use.
Embodiment 1:
Get 20 purpose forsterite sand 60kg, 30 order forsterite sand 36kg Graphite Powder 99 3kg, organic resin 2 kg; Premixing is done and is mixed after 20 minutes; Added tap water 8kg wet lapping 20 minutes, oven dry (water cut≤1%) is sieved again then; Get 10 order to 30 purpose products packing warehouse-in, get cavityless casting forsterite dry sand.
Embodiment 2:
Get 20 purpose forsterite sand 50kg, 30 order forsterite sand 30kg Graphite Powder 99 2kg, organic resin 3 kg; Premixing is done and is mixed after 20 minutes, adds tap water 8kg wet lapping 20 minutes, then oven dry (water cut≤1%); Sieve, the packing warehouse-in gets cavityless casting forsterite dry sand again.
Embodiment 3:
Get 20 purpose forsterite sand 40kg, 30 order forsterite sand 45kg Graphite Powder 99 3kg, organic resin 3 kg; Premixing is done and is mixed after 20 minutes, adds tap water 8kg wet lapping 20 minutes, then oven dry (water cut≤1%); Sieve, the packing warehouse-in gets cavityless casting forsterite dry sand again.
Embodiment 4:
Get 20 purpose forsterite sand 50kg, 30 order forsterite sand 46kg Graphite Powder 99 3kg, organic resin 3 kg; Premixing is done and is mixed after 20 minutes, adds tap water 8kg wet lapping 20 minutes, then oven dry (water cut≤1%); Sieve, the packing warehouse-in gets cavityless casting forsterite dry sand again.
Embodiment 5:
Get 20 purpose forsterite sand 40kg, 30 order forsterite sand 45kg Graphite Powder 99 3kg, organic resin 3 kg; Premixing is done and is mixed after 20 minutes, adds tap water 8kg wet lapping 20 minutes, then oven dry (water cut≤1%); Sieve, the packing warehouse-in gets cavityless casting forsterite dry sand again.
Embodiment 6:
Get 20 purpose forsterite sand 60kg, 30 order forsterite sand 35kg Graphite Powder 99 3kg, organic resin 2 kg; Premixing is done and is mixed after 20 minutes, adds tap water 8kg wet lapping 20 minutes, then oven dry (water cut≤1%); Sieve, the packing warehouse-in gets cavityless casting forsterite dry sand again.
Claims (4)
1. a cavityless casting forsterite dry sand is characterized in that comprising following raw material in weight part: forsterite sand 80-96, Graphite Powder 99 2-3, organic resin 1-3.
2. cavityless casting forsterite dry sand according to claim 1 is characterized in that comprising following raw material in weight part: forsterite sand 85-96, Graphite Powder 99 2-3, organic resin 1-3.
3. cavityless casting forsterite dry sand according to claim 1 is characterized in that comprising following raw material in weight part: forsterite sand 95, Graphite Powder 99 3, organic resin 2.
4. method for preparing the described cavityless casting forsterite of claim 1 dry sand; It is characterized in that: with forsterite sand, Graphite Powder 99 and organic resin mix according to proportioning, carry out premixing and do mixed; Add tap water then and carry out wet mixing and grind, dry again, sieve cavityless casting forsterite dry sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210135572.1A CN102674727B (en) | 2012-05-04 | 2012-05-04 | Dry forsterite sand for full-mold casting and preparation method for dry forsterite sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210135572.1A CN102674727B (en) | 2012-05-04 | 2012-05-04 | Dry forsterite sand for full-mold casting and preparation method for dry forsterite sand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102674727A true CN102674727A (en) | 2012-09-19 |
| CN102674727B CN102674727B (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210135572.1A Active CN102674727B (en) | 2012-05-04 | 2012-05-04 | Dry forsterite sand for full-mold casting and preparation method for dry forsterite sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102674727B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116908A (en) * | 2007-09-03 | 2008-02-06 | 武汉科技大学 | White olivine ladle draining sand and method for preparing the same |
-
2012
- 2012-05-04 CN CN201210135572.1A patent/CN102674727B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116908A (en) * | 2007-09-03 | 2008-02-06 | 武汉科技大学 | White olivine ladle draining sand and method for preparing the same |
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| Publication number | Publication date |
|---|---|
| CN102674727B (en) | 2014-01-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 443131 high gorge Road, Taiping Town, Yiling District, Hubei, Yichang Patentee after: Hubei magnesium Polytron Technologies Inc Address before: 443100 No. 40 Guangsha street, Yiling District, Hubei, Yichang Patentee before: Yichang Fuquan Magnesium Olivine Co., Ltd. |
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| CP03 | Change of name, title or address |