CN104985105A - Novel water glass molding sand and preparation method thereof - Google Patents

Novel water glass molding sand and preparation method thereof Download PDF

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Publication number
CN104985105A
CN104985105A CN201510360213.XA CN201510360213A CN104985105A CN 104985105 A CN104985105 A CN 104985105A CN 201510360213 A CN201510360213 A CN 201510360213A CN 104985105 A CN104985105 A CN 104985105A
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China
Prior art keywords
parts
sand
molding sand
waste
waterglass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510360213.XA
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Chinese (zh)
Inventor
杜厚坚
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Wengan Ruifeng Trade Co Ltd
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Wengan Ruifeng Trade Co Ltd
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Publication date
Application filed by Wengan Ruifeng Trade Co Ltd filed Critical Wengan Ruifeng Trade Co Ltd
Priority to CN201510360213.XA priority Critical patent/CN104985105A/en
Publication of CN104985105A publication Critical patent/CN104985105A/en
Pending legal-status Critical Current

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Abstract

The invention discloses novel water glass molding sand and a preparation method thereof. The novel water glass molding sand comprises, by weight, 81-91 parts of recycled sand, 21-31 parts of bran, 6-9 parts of waste shiitake mushroom cultivation material generated after shiitake mushrooms are produced, 4-8 parts of gypsum, 2-4 parts of quartz sand, 1-3 parts of steel fibers, 6-9 parts of coal dust, 9-15 parts of water glass, 4-6 parts of modified acrylic resin and 3-9 parts of water. The novel water glass molding sand is simple in manufacturing method, low in cost, and high in production efficiency; with the bran and the waste shiitake mushroom cultivation material generated after the shiitake mushrooms are produced being raw materials, waste recycling is achieved, and because the steel fibers are added, the strength is greatly improved.

Description

A kind of New Type Silicate molding sand and preparation method thereof
Technical field
The invention belongs to foundary industry field, relate in particular to a kind of New Type Silicate molding sand, also relate to its preparation method simultaneously.
Background technology
Waterglass is the general designation of various aqueous polysilicate.That casting is commonly used is sodium (Na 2omSiO 2) waterglass, waterglass, as a kind of inorganic chemistry binding agent, has cheap, wide material sources, the advantage such as nonpoisonous and tasteless, is widely used in casting production.Molding sand is in sand casting, be used for the material of moulding, molding sand is generally mixed according to a certain percentage by Modeling Materials such as casting model powder, moulding sand binder and additional things, also can with natural silica sand argillaceous, the sand formulation Sand particle diameter of common cast aluminium is too large or too little, and molding sand material footpath is too large, although gas permeability is better, but aloxite part surface ratio is more coarse, and fineness is bad, molding sand material footpath is too little, cause mo ld void bad, aluminium casting has pore to produce well.
Summary of the invention
Object of the present invention, is to provide a kind of New Type Silicate molding sand and preparation method thereof.Use New Type Silicate molding sand preparation method of the present invention simple, with low cost, production efficiency is high; After adopting chaff, Mushroom cultivation material fruiting, waste material is as raw material, realizes waste reclamation, increases steel fibre, greatly increases its intensity.
Technical scheme of the present invention: a kind of New Type Silicate molding sand, it is made with the raw material of following weight proportion, 6 ~ 9 parts, waste material after return sand 81 ~ 91 parts, chaff 21 ~ 31 parts, Mushroom cultivation material fruiting, 4 ~ 8 parts, gypsum, quartz sand 2 ~ 4 parts, steel fibre 1 ~ 3 part, coal dust 6 ~ 9 parts, waterglass 9 ~ 15 parts, acrylic resin modified 4 ~ 6 parts, 3 ~ 9 parts, water.
Aforesaid New Type Silicate molding sand, it is made with the raw material of following weight proportion, 7 parts, waste material after return sand 85 parts, chaff 26 parts, Mushroom cultivation material fruiting, 6 parts, gypsum, quartz sand 3 parts, steel fibre 2 parts, coal dust 7 parts, waterglass 13 parts, acrylic resin modified 5 parts, 6 parts, water.
Aforesaid New Type Silicate molding sand, the modulus M of described waterglass is 2.6, and density is 1.4g/cm 3.
The preparation method of aforesaid New Type Silicate molding sand, is characterized in that: prepare in the steps below:
After a, weight portion mixing return sand by constitutive material, chaff, Mushroom cultivation material fruiting, waste material, gypsum, quartz sand, steel fibre, coal dust, waterglass and acrylic resin modified stirring are dry mixed 25 seconds, obtain A product;
B, in A product, add water, be uniformly mixed 25 minutes, get product.
Compared with prior art, the present invention has following beneficial effect:
(1) preparation method is simple, with low cost, production efficiency is high;
(2) after adopting chaff, Mushroom cultivation material fruiting, waste material is as raw material, realizes waste reclamation, increases steel fibre, greatly increases its intensity.
In order to make those of ordinary skill in the art better understand the present invention, come by the following examples to set forth the present invention further.
Detailed description of the invention
Embodiment 1.
New Type Silicate molding sand, make with the raw material of following weight proportion, waste material 7kg, gypsum 6kg, quartz sand 3kg, steel fibre 2kg, coal dust 7kg, waterglass 13kg, acrylic resin modified 5kg after return sand 85kg, chaff 26kg, Mushroom cultivation material fruiting, water 6kg.
Concrete preparation process is as follows:
After a, weight portion mixing return sand by constitutive material, chaff, Mushroom cultivation material fruiting, waste material, gypsum, quartz sand, steel fibre, coal dust, waterglass and acrylic resin modified stirring are dry mixed 25 seconds, obtain A product;
B, in A product, add water, be uniformly mixed 25 minutes, get product.
The processing performance of this New Type Silicate molding sand: green compression strength: 0.116MPa, air penetrability: 92.7%, hot green tensile strength: 339kPa, shatter index: 90.3%.
Embodiment 2.
New Type Silicate molding sand, make with the raw material of following weight proportion, waste material 6kg, gypsum 4kg, quartz sand 2kg, steel fibre 1kg, coal dust 6kg, waterglass 9kg, acrylic resin modified 4kg after return sand 81kg, chaff 21kg, Mushroom cultivation material fruiting, water 3kg.
Concrete preparation process is as follows:
After a, weight portion mixing return sand by constitutive material, chaff, Mushroom cultivation material fruiting, waste material, gypsum, quartz sand, steel fibre, coal dust, waterglass and acrylic resin modified stirring are dry mixed 25 seconds, obtain A product;
B, in A product, add water, be uniformly mixed 25 minutes, get product.
The processing performance of this New Type Silicate molding sand: green compression strength: 0.112MPa, air penetrability: 92.6%, hot green tensile strength: 337kPa, shatter index: 89.6%.
Embodiment 3.
New Type Silicate molding sand, make with the raw material of following weight proportion, waste material 9kg, gypsum 8kg, quartz sand 4kg, steel fibre 3kg, coal dust 9kg, waterglass 15kg, acrylic resin modified 6kg after return sand 91kg, chaff 31kg, Mushroom cultivation material fruiting, water 9kg.
Concrete preparation process is as follows:
After a, weight portion mixing return sand by constitutive material, chaff, Mushroom cultivation material fruiting, waste material, gypsum, quartz sand, steel fibre, coal dust, waterglass and acrylic resin modified stirring are dry mixed 25 seconds, obtain A product;
B, in A product, add water, be uniformly mixed 25 minutes, get product.
The processing performance of this New Type Silicate molding sand: green compression strength: 0.119MPa, air penetrability: 93.2%, hot green tensile strength: 339.6kPa, shatter index: 90.8%.

Claims (4)

1. a New Type Silicate molding sand, it is characterized in that: it is made with the raw material of following weight proportion, 6 ~ 9 parts, waste material after return sand 81 ~ 91 parts, chaff 21 ~ 31 parts, Mushroom cultivation material fruiting, 4 ~ 8 parts, gypsum, quartz sand 2 ~ 4 parts, steel fibre 1 ~ 3 part, coal dust 6 ~ 9 parts, waterglass 9 ~ 15 parts, acrylic resin modified 4 ~ 6 parts, 3 ~ 9 parts, water.
2. New Type Silicate molding sand as claimed in claim 1, it is characterized in that: it is made with the raw material of following weight proportion, 7 parts, waste material after return sand 85 parts, chaff 26 parts, Mushroom cultivation material fruiting, 6 parts, gypsum, quartz sand 3 parts, steel fibre 2 parts, coal dust 7 parts, waterglass 13 parts, acrylic resin modified 5 parts, 6 parts, water.
3. New Type Silicate molding sand as claimed in claim 1 or 2, is characterized in that: the modulus M of described waterglass is 2.6, and density is 1.4g/cm 3.
4. the preparation method of New Type Silicate molding sand as claimed in claim 3, is characterized in that: prepare in the steps below:
After a, weight portion mixing return sand by constitutive material, chaff, Mushroom cultivation material fruiting, waste material, gypsum, quartz sand, steel fibre, coal dust, waterglass and acrylic resin modified stirring are dry mixed 25 seconds, obtain A product;
B, in A product, add water, be uniformly mixed 25 minutes, get product.
CN201510360213.XA 2015-06-26 2015-06-26 Novel water glass molding sand and preparation method thereof Pending CN104985105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510360213.XA CN104985105A (en) 2015-06-26 2015-06-26 Novel water glass molding sand and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510360213.XA CN104985105A (en) 2015-06-26 2015-06-26 Novel water glass molding sand and preparation method thereof

Publications (1)

Publication Number Publication Date
CN104985105A true CN104985105A (en) 2015-10-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510360213.XA Pending CN104985105A (en) 2015-06-26 2015-06-26 Novel water glass molding sand and preparation method thereof

Country Status (1)

Country Link
CN (1) CN104985105A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2118223C1 (en) * 1997-04-22 1998-08-27 Челябинский государственный технический университет Process of preparation of water glass binder for manufacture of casting ceramic moulds by cast models
CN101941046A (en) * 2010-09-28 2011-01-12 河北科技大学 Composite sodium silicate binder for sand mold and preparing method thereof
CN102366812A (en) * 2011-10-11 2012-03-07 许立新 Preparation method for sodium silicate sand used for casting
CN102728780A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Water glass molding sand and producing method thereof
CN102728776A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Low-cost environment-friendly molding sand and preparation method thereof
CN102728775A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Molding sand containing wood fiber and production method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2118223C1 (en) * 1997-04-22 1998-08-27 Челябинский государственный технический университет Process of preparation of water glass binder for manufacture of casting ceramic moulds by cast models
CN101941046A (en) * 2010-09-28 2011-01-12 河北科技大学 Composite sodium silicate binder for sand mold and preparing method thereof
CN102366812A (en) * 2011-10-11 2012-03-07 许立新 Preparation method for sodium silicate sand used for casting
CN102728780A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Water glass molding sand and producing method thereof
CN102728776A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Low-cost environment-friendly molding sand and preparation method thereof
CN102728775A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Molding sand containing wood fiber and production method thereof

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Application publication date: 20151021

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