CN104841868A - Molding sand for anti-shakeout carbon steel casting - Google Patents
Molding sand for anti-shakeout carbon steel casting Download PDFInfo
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- CN104841868A CN104841868A CN201510310656.8A CN201510310656A CN104841868A CN 104841868 A CN104841868 A CN 104841868A CN 201510310656 A CN201510310656 A CN 201510310656A CN 104841868 A CN104841868 A CN 104841868A
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- parts
- molding sand
- carbon steel
- knockout
- sand
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Abstract
The invention discloses a molding sand for anti-shakeout carbon steel casting. Graphite powder is used as the base material, clay is used as the main material, and auxiliary materials include quartz sand, vermiculite and the like; the product is prepared through the steps of smashing, stirring, pelletizing, pre-heating, sintering and grinding. The molding sand disclosed by the invention is simple and reasonable in manufacturing process, the strength and the heat resistance of the molding sand particle are enhanced; the casting surface is smooth and the shakeout is hard, the molding sand can be recycled; and meanwhile, the product is good in collapsibility, proper in particle size, good in breathability, good in fluidity and good in dispersibility.
Description
Technical field
The present invention relates to casting field, be specifically related to a kind of anti-knockout cast carbon steel molding sand.
Background technology
The subject matter that current molding sand exists has: 1, particle size difficulty controls, if molding sand particle diameter is too large, although gas permeability is better, cast(ing) surface is more coarse, and fineness is bad; If molding sand material footpath is too little, cause mo ld void bad, foundry goods has pore to produce.2, dispel the heat bad, chill effect is poor, and shrinkage porosite, shrinkage cavity phenomenon easily appear in intricate casting inside.3, dispersed, mobility is bad, easily caking, dusting beans.4, knockout is serious, and scrappage is high.5, special molding sand is lacked for different types of foundry goods.
Conventional clay molding sand mainly exists not easy to be recycled, and poor air permeability, mobility are bad, dispersiveness is bad, collapsibility is poor, it is bad to dispel the heat, environmental pollution is serious shortcoming.
In view of the defect existed in above prior art, be necessary existing apparatus to improve further, make it have more standby practicality, could realistic service condition.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, the object of this invention is to provide a kind of anti-knockout cast carbon steel molding sand.
The present invention takes following technical scheme to realize: a kind of anti-knockout cast carbon steel molding sand, and employing graphite powder is base-material, and clay is major ingredient, and the raw material that auxiliary material comprises following parts by weight is prepared from:
Quartz sand 30-35 part vermiculite 3--5 part
Antioxidant 1010 0.1-0.3 part matches grand powder 12-15 part
Zinc dialkyl dithiophosphate 5-8 part stabilizing agent RWS 0.01-0.15 part
Bentonite 8--10 part magnesite fine powder 2-5 part
Barium silicate 6-8 part flexibilizer PPB-8101 10-14 part
The raw material that auxiliary material of the present invention comprises following parts by weight is prepared from:
Quartz sand 32 parts of vermiculites 4 parts
Antioxidant 1010 0.1-0.3 part matches 14 parts, grand powder
Zinc dialkyl dithiophosphate 6 parts of stabilizing agent RWS 0.12 part
Bentonite 9 parts of magnesite fine powders 4 parts
Barium silicate 7 parts of flexibilizer PPB-8101 13 parts
Base-material graphite powder of the present invention and major ingredient clay are prepared according to weight ratio 2:3.
Preparation technology of the present invention, it comprises the following steps preparation: pulverizing, stirring, granulation, preheating, sintering, grinding, shaping.
The present invention has following beneficial effect in sum: manufacture craft advantages of simple of the present invention, employing graphite powder is base-material, and clay is major ingredient, and accessory package is containing the raw material such as quartz sand, vermiculite, add intensity and the heat resistance of molding sand particle, cast(ing) surface is smooth, not easily knockout, can also reclaim profit again, simultaneously, product collapsibility of the present invention is good, and particle size is suitable, good permeability, good fluidity, good dispersion etc.
Detailed description of the invention
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the present invention further.
The present invention takes following technical scheme to realize: a kind of anti-knockout cast carbon steel molding sand, and employing graphite powder is base-material, and clay is major ingredient, and the raw material that auxiliary material comprises following parts by weight is prepared from:
Quartz sand 30-35 part vermiculite 3--5 part
Antioxidant 1010 0.1-0.3 part matches grand powder 12-15 part
Zinc dialkyl dithiophosphate 5-8 part stabilizing agent RWS 0.01-0.15 part
Bentonite 8--10 part magnesite fine powder 2-5 part
Barium silicate 6-8 part flexibilizer PPB-8101 10-14 part
The raw material that auxiliary material of the present invention comprises following parts by weight is prepared from:
Quartz sand 32 parts of vermiculites 4 parts
Antioxidant 1010 0.1-0.3 part matches 14 parts, grand powder
Zinc dialkyl dithiophosphate 6 parts of stabilizing agent RWS 0.12 part
Bentonite 9 parts of magnesite fine powders 4 parts
Barium silicate 7 parts of flexibilizer PPB-8101 13 parts
Preferably, base-material graphite powder of the present invention and major ingredient clay are prepared according to weight ratio 2:3.
Preferably, preparation technology of the present invention, it comprises the following steps preparation: pulverizing, stirring, granulation, preheating, sintering, grinding, shaping.
Manufacture craft advantages of simple of the present invention, employing graphite powder is base-material, and clay is major ingredient, and accessory package is containing the raw material such as quartz sand, vermiculite, add intensity and the heat resistance of molding sand particle, cast(ing) surface is smooth, not easily knockout, can also reclaim profit again, simultaneously, product collapsibility of the present invention is good, and particle size is suitable, good permeability, good fluidity, good dispersion etc.
The above is embodiments of the invention, therefore all equivalences done according to structure, feature and the principle described in the present patent application scope change or modify, and are included in patent claim of the present invention.
Claims (4)
1. an anti-knockout cast carbon steel molding sand, it is characterized in that: employing graphite powder is base-material, clay is major ingredient, and the raw material that auxiliary material comprises following parts by weight is prepared from:
Quartz sand 30-35 part vermiculite 3--5 part
Antioxidant 1010 0.1-0.3 part matches grand powder 12-15 part
Zinc dialkyl dithiophosphate 5-8 part stabilizing agent RWS 0.01-0.15 part
Bentonite 8--10 part magnesite fine powder 2-5 part
Barium silicate 6-8 part flexibilizer PPB-8101 10-14 part.
2. one according to claim 1 anti-knockout cast carbon steel molding sand, is characterized in that: the raw material that described auxiliary material comprises following parts by weight is prepared from:
Quartz sand 32 parts of vermiculites 4 parts
Antioxidant 1010 0.1-0.3 part matches 14 parts, grand powder
Zinc dialkyl dithiophosphate 6 parts of stabilizing agent RWS 0.12 part
Bentonite 9 parts of magnesite fine powders 4 parts
Barium silicate 7 parts of flexibilizer PPB-8101 13 parts.
3. one according to claim 1 anti-knockout cast carbon steel molding sand, is characterized in that: described base-material graphite powder and major ingredient clay are prepared according to weight ratio 2:3.
4. one according to claim 1 anti-knockout cast carbon steel sand conditioning technique, is characterized in that: it comprises the following steps preparation: pulverizing, stirring, granulation, preheating, sintering, grinding, shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310656.8A CN104841868A (en) | 2015-06-09 | 2015-06-09 | Molding sand for anti-shakeout carbon steel casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310656.8A CN104841868A (en) | 2015-06-09 | 2015-06-09 | Molding sand for anti-shakeout carbon steel casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104841868A true CN104841868A (en) | 2015-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510310656.8A Pending CN104841868A (en) | 2015-06-09 | 2015-06-09 | Molding sand for anti-shakeout carbon steel casting |
Country Status (1)
| Country | Link |
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| CN (1) | CN104841868A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941438A (en) * | 2018-09-03 | 2018-12-07 | 王韶华 | A kind of anti-knockout casting sand |
| CN110328326A (en) * | 2019-07-30 | 2019-10-15 | 四川安岳宇良汽车水泵有限公司 | A kind of water pump casting sand conditioning technique |
| CN111347006A (en) * | 2020-05-09 | 2020-06-30 | 平顶山市信瑞达石墨制造有限公司 | Graphite powder composition for casting and method for sand casting by using same |
-
2015
- 2015-06-09 CN CN201510310656.8A patent/CN104841868A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941438A (en) * | 2018-09-03 | 2018-12-07 | 王韶华 | A kind of anti-knockout casting sand |
| CN110328326A (en) * | 2019-07-30 | 2019-10-15 | 四川安岳宇良汽车水泵有限公司 | A kind of water pump casting sand conditioning technique |
| CN111347006A (en) * | 2020-05-09 | 2020-06-30 | 平顶山市信瑞达石墨制造有限公司 | Graphite powder composition for casting and method for sand casting by using same |
| CN111347006B (en) * | 2020-05-09 | 2021-11-19 | 平顶山市信瑞达石墨制造有限公司 | Graphite powder composition for casting and method for sand casting by using same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150819 |
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| WD01 | Invention patent application deemed withdrawn after publication |