CN105618667A - Refractory casting sand - Google Patents
Refractory casting sand Download PDFInfo
- Publication number
- CN105618667A CN105618667A CN201511022200.8A CN201511022200A CN105618667A CN 105618667 A CN105618667 A CN 105618667A CN 201511022200 A CN201511022200 A CN 201511022200A CN 105618667 A CN105618667 A CN 105618667A
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- Prior art keywords
- sand
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- 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.)
- Granted
Links
- 239000004576 sand Substances 0.000 title claims abstract description 85
- 238000005266 casting Methods 0.000 title abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 122
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 17
- 229910052845 zircon Inorganic materials 0.000 claims abstract description 8
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 5
- 229960000892 attapulgite Drugs 0.000 claims abstract description 5
- 239000004917 carbon fiber Substances 0.000 claims abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 5
- 229910052839 forsterite Inorganic materials 0.000 claims abstract description 4
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims abstract description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000004615 ingredient Substances 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 230000009970 fire resistant effect Effects 0.000 claims description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052609 olivine Inorganic materials 0.000 claims description 5
- 239000010450 olivine Substances 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 239000000571 coke Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 239000003110 molding sand Substances 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003513 alkali Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 229910001651 emery Inorganic materials 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000012778 molding material Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000002352 blister Diseases 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000010114 lost-foam casting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses refractory casting sand. The refractory casting sand comprises crude sand and a functional component. The crude sand comprises fresh sand and reclaimed sand. The fresh sand is prepared from, by weight, 100-110 parts of silica sand, 6-10 parts of zircon sand, 10-15 parts of forsterite sand, 5-7 parts of emery, 3-5 parts of refractory clinker and 3-5 parts of carbon sand. The functional component is carbon fiber containing combustible matter or kieselguhr or attapulgite. The refractory casting sand is low in production cost, the structural stability is improved, and good heat conductivity, high refractoriness and good acidic and alkali resistance are achieved. Gas permeability is improved on the premise of guaranteeing the strength of the sand, the blow hole defects of a casting are reduced, and the rate of finished products is increased.
Description
Technical field
The invention belongs to casting technology field, especially relate to a kind of refractory cast moulding sand.
Background technology
At casting field, from a broad sense, every material being used for manufacturing casting mold (comprising core, coating etc.) is referred to as molding material. the casting mold used in Foundry Production has sand mold, metal mold, ceramic mould, gypsum model, graphite mould etc., wherein the most generally and in a large number use sand mold, worldwide, the foundry goods that application sand mold is produced accounts for the 60%-80% that various casting mold produces casting output, 21st century called " Green foundry ", protection of the environment, realize the fundamental state policy that Sustainable development is for we, molding material is to the environmental protection of foundry, green, cleanly production plays important effect, in sand mold casting and lost foam casting are produced, by a large amount of for discharge discarded old sand, if manipulation of regeneration and recycling can not be carried out, physical environment must be brought the destruction of huge pollution, therefore a kind of environmental protection is developed, less contamination, the high molding material of fire performance is for current present situation, have great significance.
Summary of the invention
Based on above technical problem, the present invention discloses a kind of refractory cast moulding sand, it is possible to obtains casting sand type efficiently, refractoriness height, and adopts environment-friendly materials, protects environment and re-sources.
The technical scheme that the present invention is complete comprises:
A kind of refractory cast moulding sand, comprises roughing sand, the first function ingredients, the 2nd function ingredients;
Described roughing sand comprises fresh sand and reclaimed sand, and described fresh sand and reclaimed sand mass ratio are (65-80): (35-20);
Described fresh sand comprises silica sand 100-110 part by weight, zircon sand 6-10 part, forsterite sand 10-15 part, emergy 5-7 part, fire-resistant grog 3-5 part, carbonaceous sand 3-5 part;
In described silica sand, dioxide-containing silica is 90%-95%, and aluminum oxide is less than 5%, and surplus is inevitable impurity, and granularity is 140-180 order, and strict density is more than 1.75g/cm3, and average fineness is 52-55;
In zircon sand, zirconia content is greater than 70%, and silica content is less than 28%, and titanium oxide content is less than 0.3%, and iron oxide content is less than 0.12%, and alumina content is less than 0.2%, and granularity is 240-280 order;
In described olivine sand, content of magnesia is 48-55%, and silica content is less than 45%, and iron oxide content is less than 8%, and granularity is 240-280 order,
In described emergy, alumina content is 99-99.5%, and granularity is 140-180 order;
Bauxitic clay and the coal gangue mixture of described fire-resistant grog to be mass ratio be 2:1, wherein in bauxitic clay, alumina content is 75%, and refractoriness is greater than 1850 DEG C,
Described carbonaceous sand is graphite or coke, granularity is 160-200 order,
Described reclaimed sand granularity is 180-240 order.
The first described function ingredients is the combustiblesubstance containing carbon fiber, thin wood chip, agricultural crop straw, and thin wood chip granularity is 160-200 order, and crop branch fiber diameter is 4-6mm;
The 2nd described function ingredients diatomite or one to two kind of attapulgite, granularity is 80-120 order, and it accounts for the 3-5% of roughing sand total mass.
Hinge structure of the present invention, adopt the silica sand of appropriate level as roughing sand principal constituent, reduce production cost, and the zircon sand adopting particle diameter little and olivine sand, the coefficient of expansion is little, improve structural stability, thermal conductivity is good, refractoriness height, and olivine sand also improves the anti acid alkali performance of molding sand, fire-resistant grog is loose, improve refractoriness, and it is convenient to knockout process, adopt reclaimed sand, it is beneficial to environmental protection recycling, and fine grain reclaimed sand is conducive to improving mold quality, adopt the porous material such as diatomite or attapulgite as molding sand material simultaneously, reduce the usage quantity of refractory materials, make casting mold lighting, both environmental protection had been conducive to, and adopt rational proportioning, ventilation property is added under the prerequisite ensureing sand bond, reduce bleb defect, add yield rate.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
A kind of refractory cast moulding sand, comprises roughing sand, the first function ingredients, the 2nd function ingredients, binding agent;
Described roughing sand comprises fresh sand and reclaimed sand, and described fresh sand and reclaimed sand mass ratio are (65-80): (35-20);
Described fresh sand comprises silica sand 100-110 part by weight, zircon sand 6-10 part, forsterite sand 10-15 part, emergy 5-7 part, fire-resistant grog 3-5 part, carbonaceous sand 3-5 part;
In described silica sand, dioxide-containing silica is 90%-95%, and aluminum oxide is less than 5%, and surplus is inevitable impurity, and granularity is 140-180 order, and strict density is more than 1.75g/cm3, and average fineness is 52-55;
In zircon sand, zirconia content is greater than 70%, and silica content is less than 28%, and titanium oxide content is less than 0.3%, and iron oxide content is less than 0.12%, and alumina content is less than 0.2%, and granularity is 240-280 order;
In described olivine sand, content of magnesia is 48-55%, and silica content is less than 45%, and iron oxide content is less than 8%, and granularity is 240-280 order,
In described emergy, alumina content is 99-99.5%, and granularity is 140-180 order;
Bauxitic clay and the coal gangue mixture of described fire-resistant grog to be mass ratio be 2:1, wherein in bauxitic clay, alumina content is 75%, and refractoriness is greater than 1850 DEG C,
Described carbonaceous sand is graphite or coke, granularity is 160-200 order,
Described reclaimed sand granularity is 180-240 order.
The first described function ingredients is the combustiblesubstance containing carbon fiber, thin wood chip, agricultural crop straw, and thin wood chip granularity is 160-200 order, and crop branch fiber diameter is 4-6mm;
The 2nd described function ingredients diatomite or one to two kind of attapulgite, granularity is 80-120 order, and it accounts for the 3-5% of roughing sand total mass,
Described binding agent is the mixture of resol, vegetables oil, tower oil, polyvinyl alcohol, and volume ratio is (60-65): (4-6): (2:-3): (10-15).
Claims (2)
1. a refractory cast moulding sand, comprises roughing sand, the first function ingredients, the 2nd function ingredients;
Described roughing sand comprises fresh sand and reclaimed sand, and described fresh sand and reclaimed sand mass ratio are (65-80): (35-20);
Described fresh sand comprises silica sand 100-110 part by weight, zircon sand 6-10 part, forsterite sand 10-15 part, emergy 5-7 part, fire-resistant grog 3-5 part, carbonaceous sand 3-5 part;
In described silica sand, dioxide-containing silica is 90%-95%, and aluminum oxide is less than 5%, and surplus is inevitable impurity, and granularity is 140-180 order, and strict density is more than 1.75g/cm3, and average fineness is 52-55;
In zircon sand, zirconia content is greater than 70%, and silica content is less than 28%, and titanium oxide content is less than 0.3%, and iron oxide content is less than 0.12%, and alumina content is less than 0.2%, and granularity is 240-280 order;
In described olivine sand, content of magnesia is 48-55%, and silica content is less than 45%, and iron oxide content is less than 8%, and granularity is 240-280 order,
In described emergy, alumina content is 99-99.5%, and granularity is 140-180 order;
Bauxitic clay and the coal gangue mixture of described fire-resistant grog to be mass ratio be 2:1, wherein in bauxitic clay, alumina content is 75%, and refractoriness is greater than 1850 DEG C,
Described carbonaceous sand is graphite or coke, granularity is 160-200 order,
Described reclaimed sand granularity is 180-240 order.
The first described function ingredients is the combustiblesubstance containing carbon fiber;
The 2nd described function ingredients diatomite or one to two kind of attapulgite, granularity is 80-120 order, and it accounts for the 3-5% of roughing sand total mass.
2. molding sand composition as claimed in claim 2, it is characterised in that, the described combustiblesubstance containing carbon fiber is at least one in thin wood chip and agricultural crop straw, and described thin wood chip granularity is 160-200 order, and described crop branch fiber diameter is 4-6mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022200.8A CN105618667B (en) | 2015-12-30 | 2015-12-30 | A kind of fire resisting casting sand |
| PCT/CN2016/107873 WO2017114074A1 (en) | 2015-12-30 | 2016-11-30 | Moulding sand for fire-resistant casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022200.8A CN105618667B (en) | 2015-12-30 | 2015-12-30 | A kind of fire resisting casting sand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105618667A true CN105618667A (en) | 2016-06-01 |
| CN105618667B CN105618667B (en) | 2018-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511022200.8A Active CN105618667B (en) | 2015-12-30 | 2015-12-30 | A kind of fire resisting casting sand |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105618667B (en) |
| WO (1) | WO2017114074A1 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880463A (en) * | 2016-06-20 | 2016-08-24 | 安徽宜安精密机械零部件有限公司 | Sand for precision casting and preparation process of sand for precision casting |
| CN106111883A (en) * | 2016-08-18 | 2016-11-16 | 娄土岭 | A kind of multi-function casting moulding sand and manufacture method thereof |
| WO2017114082A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Sand mould casting method for diesel engine components |
| WO2017114075A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | High strength casting method |
| WO2017114080A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Sand mould casting method for diesel engine shell |
| WO2017114072A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Moulding sand composition for environmentally friendly casting |
| WO2017114076A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | High breathability lost foam casting method |
| WO2017114073A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Sand for breathable casting |
| WO2017114083A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Cast iron sand mould casting method |
| WO2017114077A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | V method casting procedure |
| WO2017114081A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Lost foam casting method for diesel engine shell |
| WO2017114074A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Moulding sand for fire-resistant casting |
| CN109732037A (en) * | 2019-03-04 | 2019-05-10 | 苏州轻金三维科技有限公司 | A kind of 3 D-printing molding sand and preparation method thereof |
| CN111167997A (en) * | 2019-12-31 | 2020-05-19 | 南京信息工程大学 | Aluminum alloy water-based casting coating and preparation method thereof |
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| CN114773071B (en) * | 2022-04-07 | 2023-04-18 | 河北盛火新材料科技有限公司 | Ceramsite sand for high-end casting and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017114076A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | High breathability lost foam casting method |
| WO2017114083A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Cast iron sand mould casting method |
| WO2017114082A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Sand mould casting method for diesel engine components |
| WO2017114075A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | High strength casting method |
| WO2017114080A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Sand mould casting method for diesel engine shell |
| WO2017114072A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Moulding sand composition for environmentally friendly casting |
| WO2017114074A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Moulding sand for fire-resistant casting |
| WO2017114073A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Sand for breathable casting |
| WO2017114081A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | Lost foam casting method for diesel engine shell |
| WO2017114077A1 (en) * | 2015-12-30 | 2017-07-06 | 张建勋 | V method casting procedure |
| CN105880463A (en) * | 2016-06-20 | 2016-08-24 | 安徽宜安精密机械零部件有限公司 | Sand for precision casting and preparation process of sand for precision casting |
| CN106111883A (en) * | 2016-08-18 | 2016-11-16 | 娄土岭 | A kind of multi-function casting moulding sand and manufacture method thereof |
| CN109732037A (en) * | 2019-03-04 | 2019-05-10 | 苏州轻金三维科技有限公司 | A kind of 3 D-printing molding sand and preparation method thereof |
| CN111167997A (en) * | 2019-12-31 | 2020-05-19 | 南京信息工程大学 | Aluminum alloy water-based casting coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105618667B (en) | 2018-12-14 |
| WO2017114074A1 (en) | 2017-07-06 |
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