CN1872450A - Molding sand and preparation method - Google Patents

Molding sand and preparation method Download PDF

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Publication number
CN1872450A
CN1872450A CN 200610019128 CN200610019128A CN1872450A CN 1872450 A CN1872450 A CN 1872450A CN 200610019128 CN200610019128 CN 200610019128 CN 200610019128 A CN200610019128 A CN 200610019128A CN 1872450 A CN1872450 A CN 1872450A
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China
Prior art keywords
sand
zircon sand
powder
zircon
waterglass
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CN 200610019128
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Chinese (zh)
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CN100352576C (en
Inventor
杜忠维
蔡双林
丁大庆
刘秀芬
程国清
张昕
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Wuhan Heavy Industry Casting and Forging Co Ltd
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Wuhan Heavy Industry Casting and Forging Co Ltd
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Priority to CNB2006100191288A priority Critical patent/CN100352576C/en
Publication of CN1872450A publication Critical patent/CN1872450A/en
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Publication of CN100352576C publication Critical patent/CN100352576C/en
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Abstract

A moulding sand is prepared from zircon sand (or powder), graphite powder and water glass through proportionally and sequentially mixing. Its advantages are high surface quality of casting mould and high refractory performance.

Description

Molding sand and preparation method thereof
Technical field
The present invention relates to special casting mold facing sand and compound method thereof in a kind of casting industry, the Modeling Material and the compound method thereof of the art casting of particularly higher, surperficial polish more complicated to surperficial quality requirement.
Background technology
Because the particularity of artistic cast article moulding, traditional handicraft adopts the light water glass sand to make casting mold sand more, preparation is easy, with low cost, easy to operate though the light water glass sand has, moulding is easy to advantage, but weak point is arranged also: at first, undercapacity is to make the foundry goods of ultra-large type art casting; Secondly, pay attention to the most for art casting one---surface quality, can not satisfy its outward appearance and be close to perfect harsh requirement.And the foundry goods that utilizes this sand to make, needing a large amount of later stage rest and reorganization work, this greatly reduces the operating efficiency of making art casting, has prolonged the production cycle to a great extent simultaneously, has wasted a large amount of human and material resources.
Summary of the invention
The objective of the invention is at above-mentioned present situation, aim to provide a kind of prescription, the preparation method is reasonable, the intensity height, surface quality is good, with short production cycle, production efficiency is high, can improve molding sand of artistic cast article quality and preparation method thereof.
The implementation of the object of the invention is that molding sand is made up of the zirconium English powder of zircon sand, zircon sand weight 0.3-0.8%, the graphite powder of 0.6-1.2%, the waterglass of 7-9%.
The preparation method of molding sand, the graphite powder of getting zirconium English powder, the 0.6-1.2% of zircon sand, zircon sand weight 0.3-0.8% mixes 5~10s with puddle mixer, then adds waterglass wet mixing 15 ~ 20s of zircon sand weight 7-9%, molding sand.
The present invention is directed to the characteristics that mould strength requirement height, fire-resistant degree require, select zircon sand as main Modeling Material; For the mo(U)ld face quality is good, adds zirconium English powder and make to regulate auxiliary material; For increasing sand fluidity, improve mold-filling capacity, strengthen the molding sand exquisiteness, and guarantee its fire resistance, add graphite powder; Easy for preparing, easy to operately make binding agent with waterglass; Be moulding and the molding that makes things convenient for foundry goods, select co2 sclerosis mode.
Prescription of the present invention, preparation method are reasonable, and the sand bond height, surface quality is good, with short production cycle, production efficiency is high, can improve artistic cast article quality.
The specific embodiment
Molding sand of the present invention is made up of the zirconium English powder of zircon sand, zircon sand weight 0.3-0.8%, the % graphite powder of 0.6-1.2, the waterglass of 7-9%.The preparation method is, takes by weighing zircon sand, zirconium English powder, graphite powder by the percent by weight proportioning and mixes 5~10s with puddle mixer, then adds waterglass wet mixing 15 ~ 20s, molding sand.
At mo(U)ld face quality requirement height, suitable granularity requirements is selected in the requirement that has certain air permeability simultaneously, wherein, select 50-100 purpose zircon sand, 350 purpose zirconium English powder,>200 purpose graphite powders, modulus are 2.2-2.4, and Baume degrees is 48~50 waterglass.
Adopt two batch (-type) puddle mixers that stir in the present invention's preparation, two groups of three layers of blade agitators of machine, rotating speed is 280r/min, the stirring scope is wide, has fully satisfied quick, the requirement uniformly of mulling.
Enumerate formulation Example of the present invention below:
Example 1, zircon sand, zircon sand weight 0.3% zirconium English powder, 0.6% graphite powder then add 7% waterglass wet mixing 15s with puddle mixer mixing 5s, get molding sand.
Example 2, zircon sand, zircon sand weight 0.4% zirconium English powder, 0.7% graphite powder then add 7% waterglass wet mixing 16s with puddle mixer mixing 6s, get molding sand.
Example 3, zircon sand, zircon sand weight 0.6% zirconium English powder, 1.0% graphite powder then add 7% waterglass wet mixing 18s with puddle mixer mixing 8s, get molding sand.
Example 4, zircon sand, zircon sand weight 0.8% zirconium English powder, 1.2% graphite powder then add 7% waterglass wet mixing 20s with puddle mixer mixing 10s, get molding sand.
Example 5, zircon sand, zircon sand weight 0.3% zirconium English powder, 0.6% graphite powder then add 8% waterglass wet mixing 15s with puddle mixer mixing 5s, get molding sand.
Example 6, zircon sand, zircon sand weight 0.4% zirconium English powder, 0.7% graphite powder then add 8% waterglass wet mixing 16s with puddle mixer mixing 6s, get molding sand.
Example 7, zircon sand, zircon sand weight 0.6% zirconium English powder, 0.6% graphite powder then add 8% waterglass wet mixing 18s with puddle mixer mixing 8s, get molding sand.
Example 8, zircon sand, zircon sand weight 0.8% zirconium English powder, 1.2% graphite powder then add 8% waterglass wet mixing 20s with puddle mixer mixing 10s, get molding sand.
Example 9, zircon sand, zircon sand weight 0.3% zirconium English powder, 0.6% graphite powder then add 9% waterglass wet mixing 15s with puddle mixer mixing 5s, get molding sand.
Example 10, zircon sand, zircon sand weight 0.4% zirconium English powder, 0.7% graphite powder then add 9% waterglass wet mixing 16s with puddle mixer mixing 6s, get molding sand.
Example 11, zircon sand, zircon sand weight 0.6% zirconium English powder, 1.0% graphite powder then add 9% waterglass wet mixing 18s with puddle mixer mixing 8s, get molding sand.
Example 12, zircon sand, zircon sand weight 0.8% zirconium English powder, 1.2% graphite powder then add 9% waterglass wet mixing 20s with puddle mixer mixing 10s, get molding sand.

Claims (4)

1, molding sand is characterized in that being made up of the zirconium English powder of zircon sand, zircon sand weight 0.3-0.8%, the graphite powder of 0.6-1.2%, the waterglass of 7-9%.
2, molding sand according to claim 1 is characterized in that with 50-100 purpose zircon sand, 350 purpose zirconium English powder, and>200 purpose graphite powders, modulus are 2.2-2.4, Baume degrees is 48~50 waterglass.
3, the preparation method of the described molding sand of claim 1, the graphite powder that it is characterized in that getting zirconium English powder, the 0.6-1.2% of zircon sand, zircon sand weight 0.3-0.8% mixes 5~10s with puddle mixer, the waterglass wet mixing 15 ~ 20s that then adds zircon sand weight 7-9% gets molding sand.
4, the preparation method of molding sand according to claim 3 is characterized in that with 50-100 purpose zircon sand, 350 purpose zirconium English powder, and>200 purpose graphite powders, modulus are 2.2-2.4, Baume degrees is 48~50 waterglass.
CNB2006100191288A 2006-05-23 2006-05-23 Molding sand and preparation method Active CN100352576C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100191288A CN100352576C (en) 2006-05-23 2006-05-23 Molding sand and preparation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006100191288A CN100352576C (en) 2006-05-23 2006-05-23 Molding sand and preparation method

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CN1872450A true CN1872450A (en) 2006-12-06
CN100352576C CN100352576C (en) 2007-12-05

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101259515B (en) * 2007-03-05 2011-09-07 上海市机械制造工艺研究所有限公司 CO2 hardened silicate-bonded sand additive agent and formative technology thereof
CN102366812A (en) * 2011-10-11 2012-03-07 许立新 Preparation method for sodium silicate sand used for casting
CN102909313A (en) * 2012-10-16 2013-02-06 武汉重工铸锻有限责任公司 Copper-alloy casting core sand and fabrication method thereof
CN102921879A (en) * 2012-10-25 2013-02-13 无锡中彩新材料股份有限公司 Metallurgical casting mould
CN103521687A (en) * 2013-10-16 2014-01-22 合肥市田源精铸有限公司 Molding sand for large cast steel roll and preparation method of molding sand
CN103521682A (en) * 2013-10-16 2014-01-22 合肥市田源精铸有限公司 Molding sand used for special casting mould surface and preparation method thereof
CN103567360A (en) * 2013-10-11 2014-02-12 铜陵市经纬流体科技有限公司 Easily scattered precoated sand and preparation method thereof
CN103567359A (en) * 2013-10-11 2014-02-12 铜陵市经纬流体科技有限公司 Clay green sand for high-pressure molding and preparation method thereof
CN104841853A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 Fast-radiating easy-to-collapse casting sand and preparation method thereof
CN104841858A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 Molding sand for improving surface quality of cast part and preparation method thereof
CN105921682A (en) * 2016-05-26 2016-09-07 合肥市田源精铸有限公司 High-air-permeability molding sand and preparation method thereof
CN108465772A (en) * 2018-06-22 2018-08-31 佛山市高明利钢精密铸造有限公司 A kind of preparation method of the special molding sand of large-size stainless steel product monoblock cast
CN108705026A (en) * 2018-06-22 2018-10-26 佛山市高明利钢精密铸造有限公司 A kind of complex-shaped stainless steelwork casts the preparation method of special molding sand
CN109365741A (en) * 2018-12-20 2019-02-22 青岛连山铸造有限公司 A kind of preparation method casting coupler body molding sand

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DD213369A1 (en) * 1983-02-08 1984-09-12 Gisag Veb Stahlgiesserei Karl UEBERZUGSSTOFF
SU1637934A1 (en) * 1988-04-04 1991-03-30 Краматорский Научно-Исследовательский И Проектно-Технологический Институт Машиностроения Mixture for manufacturing casting moulds and cores
CN1020370C (en) * 1990-05-11 1993-04-28 天津碱厂 Disperser for water-glass sand
JPH05200478A (en) * 1992-01-28 1993-08-10 Hitachi Metals Ltd Manufacture of spheroidal graphite cast iron
CN1033743C (en) * 1994-08-05 1997-01-08 秦升益 Wet filmcoating sand mould material and prodn. thereof
FR2773728B1 (en) * 1998-01-16 2000-03-17 Pechiney Electrometallurgie POWDER PRODUCT FOR THE PROTECTION OF CENTRIFUGAL CAST MOLDS FROM CAST IRON AND POTENTIAL PREPARATION METHOD
JP3931322B2 (en) * 2000-01-11 2007-06-13 三菱マテリアル株式会社 Silicon ingot casting mold and manufacturing method thereof
JP4401588B2 (en) * 2001-03-09 2010-01-20 花王株式会社 Inorganic composite particles
JP4153689B2 (en) * 2001-10-19 2008-09-24 株式会社ツチヨシアクティ Manufacturing method of casting mold

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101259515B (en) * 2007-03-05 2011-09-07 上海市机械制造工艺研究所有限公司 CO2 hardened silicate-bonded sand additive agent and formative technology thereof
CN102366812A (en) * 2011-10-11 2012-03-07 许立新 Preparation method for sodium silicate sand used for casting
CN102366812B (en) * 2011-10-11 2016-01-20 华文蔚 A kind of preparation method of sodium silicate sand used for casting
CN102909313B (en) * 2012-10-16 2015-04-22 武汉重工铸锻有限责任公司 Copper-alloy casting core sand and fabrication method thereof
CN102909313A (en) * 2012-10-16 2013-02-06 武汉重工铸锻有限责任公司 Copper-alloy casting core sand and fabrication method thereof
CN102921879A (en) * 2012-10-25 2013-02-13 无锡中彩新材料股份有限公司 Metallurgical casting mould
CN103567360A (en) * 2013-10-11 2014-02-12 铜陵市经纬流体科技有限公司 Easily scattered precoated sand and preparation method thereof
CN103567359A (en) * 2013-10-11 2014-02-12 铜陵市经纬流体科技有限公司 Clay green sand for high-pressure molding and preparation method thereof
CN103521687A (en) * 2013-10-16 2014-01-22 合肥市田源精铸有限公司 Molding sand for large cast steel roll and preparation method of molding sand
CN103521682A (en) * 2013-10-16 2014-01-22 合肥市田源精铸有限公司 Molding sand used for special casting mould surface and preparation method thereof
CN104841853A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 Fast-radiating easy-to-collapse casting sand and preparation method thereof
CN104841858A (en) * 2015-05-07 2015-08-19 马鞍山市恒毅机械制造有限公司 Molding sand for improving surface quality of cast part and preparation method thereof
CN105921682A (en) * 2016-05-26 2016-09-07 合肥市田源精铸有限公司 High-air-permeability molding sand and preparation method thereof
CN108465772A (en) * 2018-06-22 2018-08-31 佛山市高明利钢精密铸造有限公司 A kind of preparation method of the special molding sand of large-size stainless steel product monoblock cast
CN108705026A (en) * 2018-06-22 2018-10-26 佛山市高明利钢精密铸造有限公司 A kind of complex-shaped stainless steelwork casts the preparation method of special molding sand
CN108465772B (en) * 2018-06-22 2020-02-07 佛山市高明利钢精密铸造有限公司 Preparation method of molding sand special for integral casting of large stainless steel parts
CN109365741A (en) * 2018-12-20 2019-02-22 青岛连山铸造有限公司 A kind of preparation method casting coupler body molding sand

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