CN104525839A - Waste quartz glass heat-resisting casting molding sand and preparation method thereof - Google Patents
Waste quartz glass heat-resisting casting molding sand and preparation method thereof Download PDFInfo
- Publication number
- CN104525839A CN104525839A CN201410711159.4A CN201410711159A CN104525839A CN 104525839 A CN104525839 A CN 104525839A CN 201410711159 A CN201410711159 A CN 201410711159A CN 104525839 A CN104525839 A CN 104525839A
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- parts
- molding sand
- quartz glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
Abstract
Waste quartz glass heat-resisting casting molding sand is prepared from the following raw materials in parts by weight: 0.5-0.8 parts of Turkey red oil, 30-36 parts of glass powder, 1-2 parts of aluminum powder, 5-8 parts of calcium-magnesium based bentonite, 1-2 parts of expanded and vitrified micro-beads, 60-70 parts of waste quartz glass, 4-5 parts of a waterborne polyurethane adhesive, 0.9-1.2 parts of magnesium sulfate heptahydrate, 1-1.4 parts of polyethylene glycol, 0.7-0.9 part of a triethanolamine oleate soap, 0.5-0.8 part of sodium carbonate, 150-170 parts of clay, a proper amount of water, and 20-30 parts of an auxiliary agent. With adopting the clay for sintering granulation, the molding sand has good air permeability and good dispersion, and can be recycled; through addition of the glass powder and the aluminum powder, the heat resistance and the heat conductivity of clay particles are increased; and through the use of the waste quartz glass, the heat resistance and the dispersion of the molding sand are increased, the molding sand is prevented from bonding, and the pollution to the environment is reduced.
Description
Technical field
The present invention relates to casting field, particularly relate to a kind of waste and old quartz glass heat-resistant cast molding sand and preparation method thereof.
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, poor heat resistance, 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.
Conventional clay molding sand has many good qualities, but 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.
Therefore, the above shortcoming that molding sand exists needs to overcome.
Summary of the invention
The object of the present invention is to provide a kind of waste and old quartz glass heat-resistant cast molding sand and preparation method thereof, this sand permeability is good, good dispersion, can recycle, and heat resistance, thermal conductivity are good, good dispersion, prevents molding sand from boning, decreases environmental pollution.
Technical scheme of the present invention is as follows:
A kind of waste and old quartz glass heat-resistant cast molding sand, is characterized in that being made up of the raw material of following weight portion: turkey red oil 0.5-0.8, glass dust 30-36, aluminium powder 1-2, calcium magnesium base bentonite 5-8, expanded and vitrified small ball 1-2, waste and old quartz glass 60-70, water-based polyurethane adhesive 4-5, bitter salt 0.9-1.2, polyethylene glycol 1-1.4, triethanolamine oleate 0.7-0.9, soda ash 0.5-0.8, clay 150-170, water are appropriate, auxiliary agent 20-30;
Described auxiliary agent is made up of the raw material of following weight portion: quartz sand 15-18, iron oxide 2-3, aluminium oxide 3-5, calcium oxide 1-1.5, talcum 3-4, rice hull ash 0.5-0.8, graphite powder 1.6-2, furfuryl alcohol resin 0.8-1.1, benzene sulfonic acid 0.5-0.7, water 1.8-2.2; Preparation method is: by quartz sand, iron oxide, aluminium oxide, calcium oxide, talcum mixing, carry out ball milling, cross 150 mesh sieves, be fired into particle with Verneuil method, particle diameter is at 0.1-2mm; Rice hull ash, graphite powder, furfuryl alcohol resin, water are mixed, add other residual components, stir, add described particle, grinding 15-20 minute, dries, and pulverize, particle diameter, at 0.5-2.5mm, to obtain final product.
The preparation method of described waste and old quartz glass heat-resistant cast molding sand, is characterized in that comprising the following steps:
(1) by clay, aluminium powder, glass dust mixing, pulverize, cross 50 mesh sieves, the water adding 7-9% weight portion stirs, granulation, particle diameter, at 0.05-2.5mm, is sent in calcining furnace, pre-burning 20-25 minute at 300-400 DEG C, then sinter at 950-1000 DEG C, take out, polish to surface roughness≤0.1mm, obtain clay particle;
(2) waste and old quartz glass is heated to melt, adds Quench in cold water, be ground into the silica glass particle of 0.05-1.5mm;
(3) described clay particle, silica glass particle are mixed with other residual components, then add the water mixing 8-13 minute of 3.2-3.5% weight portion, to obtain final product.
Beneficial effect of the present invention
Molding sand of the present invention is by using vitrified bond granulation, and good permeability, good dispersion, can recycle; By adding glass dust, aluminium powder, add the heat resistance of clay particle, thermal conductivity; By using waste and old quartz glass, adding the heat resistance of molding sand, dispersiveness, preventing molding sand from boning, decreasing environmental pollution.Auxiliary agent of the present invention can be high temperature resistant, prevents clay particle from boning, make sand fluidity good, good permeability simultaneously, by using rice hull ash, graphite powder, the plasticity can improving molding sand and high temperature collapsibility.
Detailed description of the invention
A kind of waste and old quartz glass heat-resistant cast molding sand, is made up of the raw material of following weight portion (kilogram): turkey red oil 0.6, glass dust 33, aluminium powder 1.5, calcium magnesium base bentonite 7, expanded and vitrified small ball 1.5, waste and old quartz glass 65, water-based polyurethane adhesive 4.5, bitter salt 1, polyethylene glycol 1.2, triethanolamine oleate 0.8, soda ash 0.6, clay 160, water are appropriate, auxiliary agent 25;
Described auxiliary agent is made up of the raw material of following weight portion (kilogram): quartz sand 17, iron oxide 2.5, aluminium oxide 4, calcium oxide 1.3, talcum 3.5, rice hull ash 0.7, graphite powder 1.8, furfuryl alcohol resin 0.9, benzene sulfonic acid 0.6, water 2; Preparation method is: by quartz sand, iron oxide, aluminium oxide, calcium oxide, talcum mixing, carry out ball milling, cross 150 mesh sieves, be fired into particle with Verneuil method, particle diameter is at 0.1-2mm; Rice hull ash, graphite powder, furfuryl alcohol resin, water are mixed, add other residual components, stir, add described particle, grind 18 minutes, dry, pulverize, particle diameter, at 0.5-2.5mm, to obtain final product.
The preparation method of described waste and old quartz glass heat-resistant cast molding sand, comprises the following steps:
(1) by clay, aluminium powder, glass dust mixing, pulverize, cross 50 mesh sieves, the water adding 8% weight portion stirs, granulation, particle diameter, at 0.05-2.5mm, is sent in calcining furnace, pre-burning 23 minutes at 350 DEG C, then sinter at 970 DEG C, take out, polish to surface roughness≤0.1mm, obtain clay particle;
(2) waste and old quartz glass is heated to melt, adds Quench in cold water, be ground into the silica glass particle of 0.05-1.5mm;
(3) described clay particle, silica glass particle are mixed with other residual components, then the water adding 3.3% weight portion mixes 11 minutes, to obtain final product.
The sand test data that the present embodiment obtains are as follows: green compression strength is 83KPa, gas permeability 122, and hot green tensile strength is 2.1KPa, and normal temperature green tensile strength is 22KPa.
Claims (2)
1. a waste and old quartz glass heat-resistant cast molding sand, is characterized in that being made up of the raw material of following weight portion: turkey red oil 0.5-0.8, glass dust 30-36, aluminium powder 1-2, calcium magnesium base bentonite 5-8, expanded and vitrified small ball 1-2, waste and old quartz glass 60-70, water-based polyurethane adhesive 4-5, bitter salt 0.9-1.2, polyethylene glycol 1-1.4, triethanolamine oleate 0.7-0.9, soda ash 0.5-0.8, clay 150-170, water are appropriate, auxiliary agent 20-30;
Described auxiliary agent is made up of the raw material of following weight portion: quartz sand 15-18, iron oxide 2-3, aluminium oxide 3-5, calcium oxide 1-1.5, talcum 3-4, rice hull ash 0.5-0.8, graphite powder 1.6-2, furfuryl alcohol resin 0.8-1.1, benzene sulfonic acid 0.5-0.7, water 1.8-2.2; Preparation method is: by quartz sand, iron oxide, aluminium oxide, calcium oxide, talcum mixing, carry out ball milling, cross 150 mesh sieves, be fired into particle with Verneuil method, particle diameter is at 0.1-2mm; Rice hull ash, graphite powder, furfuryl alcohol resin, water are mixed, add other residual components, stir, add described particle, grinding 15-20 minute, dries, and pulverize, particle diameter, at 0.5-2.5mm, to obtain final product.
2. the preparation method of waste and old quartz glass heat-resistant cast molding sand according to claim 1, is characterized in that comprising the following steps:
(1) by clay, aluminium powder, glass dust mixing, pulverize, cross 50 mesh sieves, the water adding 7-9% weight portion stirs, granulation, particle diameter, at 0.05-2.5mm, is sent in calcining furnace, pre-burning 20-25 minute at 300-400 DEG C, then sinter at 950-1000 DEG C, take out, polish to surface roughness≤0.1mm, obtain clay particle;
(2) waste and old quartz glass is heated to melt, adds Quench in cold water, be ground into the silica glass particle of 0.05-1.5mm;
(3) described clay particle, silica glass particle are mixed with other residual components, then add the water mixing 8-13 minute of 3.2-3.5% weight portion, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711159.4A CN104525839A (en) | 2014-12-01 | 2014-12-01 | Waste quartz glass heat-resisting casting molding sand and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711159.4A CN104525839A (en) | 2014-12-01 | 2014-12-01 | Waste quartz glass heat-resisting casting molding sand and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104525839A true CN104525839A (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410711159.4A Pending CN104525839A (en) | 2014-12-01 | 2014-12-01 | Waste quartz glass heat-resisting casting molding sand and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170872A (en) * | 2015-08-19 | 2015-12-23 | 合肥市田源精铸有限公司 | Novel molding sand |
| CN108296419A (en) * | 2017-10-27 | 2018-07-20 | 柳州市柳晶科技股份有限公司 | A kind of method using recycling glass preparation 3D printing precoated sand and precoated sand obtained |
Citations (9)
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|---|---|---|---|---|
| JPS5897461A (en) * | 1981-12-02 | 1983-06-09 | Hitachi Chem Co Ltd | Resin composition for binding of molding sand grains |
| CN101733361A (en) * | 2010-01-06 | 2010-06-16 | 东华大学 | Sand burning preventing coal dust free green sand for casting and preparation method thereof |
| CN102366811A (en) * | 2011-10-10 | 2012-03-07 | 辛培兴 | Preparation method of molding sand for gray iron casting |
| CN103480806A (en) * | 2013-09-18 | 2014-01-01 | 苏州市通润机械铸造有限公司 | Casting technology for improving balance of brake wheel |
| CN103495692A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | Mud core moulding sand for casting and preparation method thereof |
| CN103495693A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | High-temperature-resisting easy collapse molding sand and preparation method thereof |
| CN103567364A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Molding sand for cast aluminum and preparation method thereof |
| CN103586395A (en) * | 2013-10-16 | 2014-02-19 | 昌利锻造有限公司 | Molding sand for automatic production line and preparation method thereof |
| CN104084522A (en) * | 2014-06-13 | 2014-10-08 | 吴江市液铸液压件铸造有限公司 | Casting moulding sand and preparation method thereof |
-
2014
- 2014-12-01 CN CN201410711159.4A patent/CN104525839A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5897461A (en) * | 1981-12-02 | 1983-06-09 | Hitachi Chem Co Ltd | Resin composition for binding of molding sand grains |
| CN101733361A (en) * | 2010-01-06 | 2010-06-16 | 东华大学 | Sand burning preventing coal dust free green sand for casting and preparation method thereof |
| CN102366811A (en) * | 2011-10-10 | 2012-03-07 | 辛培兴 | Preparation method of molding sand for gray iron casting |
| CN103480806A (en) * | 2013-09-18 | 2014-01-01 | 苏州市通润机械铸造有限公司 | Casting technology for improving balance of brake wheel |
| CN103567364A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Molding sand for cast aluminum and preparation method thereof |
| CN103495692A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | Mud core moulding sand for casting and preparation method thereof |
| CN103495693A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | High-temperature-resisting easy collapse molding sand and preparation method thereof |
| CN103586395A (en) * | 2013-10-16 | 2014-02-19 | 昌利锻造有限公司 | Molding sand for automatic production line and preparation method thereof |
| CN104084522A (en) * | 2014-06-13 | 2014-10-08 | 吴江市液铸液压件铸造有限公司 | Casting moulding sand and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170872A (en) * | 2015-08-19 | 2015-12-23 | 合肥市田源精铸有限公司 | Novel molding sand |
| CN108296419A (en) * | 2017-10-27 | 2018-07-20 | 柳州市柳晶科技股份有限公司 | A kind of method using recycling glass preparation 3D printing precoated sand and precoated sand obtained |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |
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| RJ01 | Rejection of invention patent application after publication |