CN105170880A - Environment-friendly molding sand - Google Patents
Environment-friendly molding sand Download PDFInfo
- Publication number
- CN105170880A CN105170880A CN201510510190.6A CN201510510190A CN105170880A CN 105170880 A CN105170880 A CN 105170880A CN 201510510190 A CN201510510190 A CN 201510510190A CN 105170880 A CN105170880 A CN 105170880A
- Authority
- CN
- China
- Prior art keywords
- parts
- molding sand
- hybrid particles
- environment
- mullite
- 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
Links
Abstract
The invention discloses environment-friendly molding sand. The environment-friendly molding sand is prepared from, by weight, 230-250 parts of quartz sand, 40-50 parts of mullite, 20-30 parts of red halloysite, 30-40 parts of talcum powder, 3-5 parts of carboxymethylcellulose, 20-30 parts of sepiolite, 15-20 parts of titanium dioxide, 25-30 parts of aluminum oxide, 15-20 parts of bean pulp and 8-10 parts of rosin. The environment-friendly molding sand is prepared through a special raw material proportion and a special process, so that the molding sand is good in strength, fire resistance, air permeability and plasticity; a casting machined through the molding sand is smooth in surface, excellent in quality and high in yield; the constituents of the molding sand and easy to get, pollution can be greatly reduced during manufacturing and using, and the molding sand is an environment-friendly product which is excellent in performance.
Description
Technical field
The invention belongs to casting field, particularly relate to a kind of environmental protection molding sand.
Background technology
Molding sand is in casting, be used for the material of moulding.Molding sand is generally mixed according to a certain percentage by Modeling Materials such as Foundry sand, moulding sand binder and additional things, also can with natural silica sand argillaceous, cast the sand formulation Sand particle diameter selected too large or too little all improper, molding sand material footpath is too large, although gas permeability is better, cast(ing) surface is more coarse, fineness is bad, molding sand material footpath is too little, causes mo ld void bad, and foundry goods has pore to produce.Domestic and international widely used coal dust clay green-sand, generally formed with the water system of mixing by roughing sand, binding agent, coal dust additive etc., there is certain Sand sticking-resistant effect and the advantage that the cost of material is low, production efficiency is high, but its consumption is large, discharge seriously, at casting process coal dust firing decomposition generation toxic gas is polluted.
Along with the raising that people require cast properties, the performance of casting technique and molding sand needs perfect further.
Summary of the invention
In order to solve the problem, the invention provides a kind of environmental protection molding sand, this molding sand has good gas permeability, collapsibility, intensity and heat resistance, and environmentally friendly.
The present invention is achieved through the following technical solutions:
A kind of environmental protection molding sand, be made up of the material of following weight portion:
230 ~ 250 parts of quartz sands, 40 ~ 50 parts of mullites, 20 ~ 30 parts of red halloysites, 30 ~ 40 parts of talcum powder, 3 ~ 5 parts of carboxymethyl celluloses, 20 ~ 30 parts of sepiolites, 15 ~ 20 parts of titanium dioxide, 25 ~ 30 parts of aluminium oxide, 15 ~ 20 parts of dregs of beans, 8 ~ 10 parts of rosin;
Its preparation method is:
(1) sieve after 230 ~ 250 parts of quartz sands, 40 ~ 50 parts of mullite co-grindings, obtain hybrid particles A for subsequent use;
(2) for subsequent use by obtaining mixture B after 20 ~ 30 parts of red halloysites, 30 ~ 40 parts of talcum powder, 3 ~ 5 parts of carboxymethyl celluloses, 20 ~ 30 parts of sepiolites, 15 ~ 20 parts of titanium dioxide, 25 ~ 30 parts of aluminium oxide mixed grindings;
(3) by step (1) gained hybrid particles A with after 6 ~ 8 parts of water mixing infiltration 5 ~ 10min hybrid particles C for subsequent use;
(4) together insert crossing 80 orders after 15 ~ 20 parts of dregs of beans, 8 ~ 10 parts of rosin co-grindings in mixer with hybrid particles C, mixture B again, and the wet mixing 10 ~ 15min that adds water.
Further, what described mullite was selected is All Pure Nature fused mullite.
Further, the described hybrid particles A of step (1) can 100% cross 200 orders, 90% cross 300 orders.
Further, step (4) the finished product water content after wet mixing that adds water is 3 ~ 6%.
The present invention has following beneficial effect:
(1) this method conservative control has been arranged in pairs or groups the particle size of molding sand and proportioning, in conjunction with the sepiolite added and carboxymethyl cellulose, makes molding sand have excellent gas permeability, dispersiveness and plasticity.
(2) dregs of beans added and rosin, not only environment friendly and pollution-free, and draw materials conveniently; Wherein residual in dregs of beans grease is about 10%, bright charcoal and carbon black can be formed during casting, in addition containing volume protein, starch and cellulose, can burn during cast and send reducibility gas and carbon black, can replace and easily produce dust, air-polluting coal dust, there is good anti-adhesion effects, and improve the deformability of molding sand; Rosin, as binding agent, has higher viscosity, improves the adhesion strength of molding sand and moulding ability, and to human body without harm.
(3) interpolation of mullite, red halloysite, titanium dioxide and aluminium oxide not only increases intensity and the heat resistance of molding sand, and jointly improves its mobility and collapsibility.
(4) to sum up, this molding sand not only has good intensity, fire resistance, gas permeability and plasticity, and the cast(ing) surface processed is smooth, superior in quality, yields is high, and composition is simple and easy to get, greatly can reduce pollution when making and use, be a kind of environmentally friendly machine of function admirable.
Detailed description of the invention
Embodiment 1
A kind of environmental protection molding sand, be made up of the material of following weight portion:
230 parts of quartz sands, 50 parts of mullites, 20 parts of red halloysites, 35 parts of talcum powder, 3 parts of carboxymethyl celluloses, 30 parts of sepiolites, 15 parts of titanium dioxide, 30 parts of aluminium oxide, 16 parts of dregs of beans, 9 parts of rosin;
Its preparation method is:
(1) sieve after 230 parts of quartz sands, 50 parts of mullite co-grindings, obtain hybrid particles A for subsequent use;
(2) for subsequent use by obtaining mixture B after 20 parts of red halloysites, 35 parts of talcum powder, 3 parts of carboxymethyl celluloses, 30 parts of sepiolites, 15 parts of titanium dioxide, 30 parts of aluminium oxide mixed grindings;
(3) step (1) gained hybrid particles A is mixed with 6 parts of water to infiltrate after 7min hybrid particles C is for subsequent use;
(4) together insert crossing 80 orders after 16 parts of dregs of beans, 9 parts of rosin co-grindings in mixer with hybrid particles C, mixture B again, and the wet mixing 12min that adds water.
Further, what described mullite was selected is All Pure Nature fused mullite.
Further, the described hybrid particles A of step (1) can 100% cross 200 orders, 90% cross 300 orders.
Further, step (4) the finished product water content after wet mixing that adds water is 3 ~ 5%.
Embodiment 2
A kind of environmental protection molding sand, be made up of the material of following weight portion:
250 parts of quartz sands, 45 parts of mullites, 30 parts of red halloysites, 30 parts of talcum powder, 4 parts of carboxymethyl celluloses, 26 parts of sepiolites, 18 parts of titanium dioxide, 25 parts of aluminium oxide, 19 parts of dregs of beans, 8 parts of rosin;
Its preparation method is:
(1) sieve after 250 parts of quartz sands, 45 parts of mullite co-grindings, obtain hybrid particles A for subsequent use;
(2) for subsequent use by obtaining mixture B after 30 parts of red halloysites, 30 parts of talcum powder, 4 parts of carboxymethyl celluloses, 26 parts of sepiolites, 18 parts of titanium dioxide, 25 parts of aluminium oxide mixed grindings;
(3) step (1) gained hybrid particles A is mixed with 8 parts of water to infiltrate after 10min hybrid particles C is for subsequent use;
(4) together insert crossing 80 orders after 19 parts of dregs of beans, 8 parts of rosin co-grindings in mixer with hybrid particles C, mixture B again, and the wet mixing 15min that adds water.
Further, what described mullite was selected is All Pure Nature fused mullite.
Further, the described hybrid particles A of step (1) can 100% cross 200 orders, 90% cross 300 orders.
Further, step (4) the finished product water content after wet mixing that adds water is 3 ~ 6%.
The performance index recording molding sand of the present invention is:
Green compression strength: 0.12 ~ 0.13MPa, air penetrability: 100 ~ 110%, compact rate of molding: 40 ~ 41%, shatter index: 83 ~ 85%.
Claims (4)
1. an environmental protection molding sand, is characterized in that, is made up of the material of following weight portion:
230 ~ 250 parts of quartz sands, 40 ~ 50 parts of mullites, 20 ~ 30 parts of red halloysites, 30 ~ 40 parts of talcum powder, 3 ~ 5 parts of carboxymethyl celluloses, 20 ~ 30 parts of sepiolites, 15 ~ 20 parts of titanium dioxide, 25 ~ 30 parts of aluminium oxide, 15 ~ 20 parts of dregs of beans, 8 ~ 10 parts of rosin;
Its preparation method is:
(1) sieve after 230 ~ 250 parts of quartz sands, 40 ~ 50 parts of mullite co-grindings, obtain hybrid particles A for subsequent use;
(2) for subsequent use by obtaining mixture B after 20 ~ 30 parts of red halloysites, 30 ~ 40 parts of talcum powder, 3 ~ 5 parts of carboxymethyl celluloses, 20 ~ 30 parts of sepiolites, 15 ~ 20 parts of titanium dioxide, 25 ~ 30 parts of aluminium oxide mixed grindings;
(3) by step (1) gained hybrid particles A with after 6 ~ 8 parts of water mixing infiltration 5 ~ 10min hybrid particles C for subsequent use;
(4) together insert crossing 80 orders after 15 ~ 20 parts of dregs of beans, 8 ~ 10 parts of rosin co-grindings in mixer with hybrid particles C, mixture B again, and the wet mixing 10 ~ 15min that adds water.
2. a kind of environmental protection molding sand according to claim 1, is characterized in that, what described mullite was selected is All Pure Nature fused mullite.
3. a kind of environmental protection molding sand according to claim 1, is characterized in that, the described hybrid particles A of step (1) can 100% cross 200 orders, 90% cross 300 orders.
4. a kind of environmental protection molding sand according to claim 1, is characterized in that, step (4) the finished product water content after wet mixing that adds water is 3 ~ 6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510190.6A CN105170880A (en) | 2015-08-19 | 2015-08-19 | Environment-friendly molding sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510190.6A CN105170880A (en) | 2015-08-19 | 2015-08-19 | Environment-friendly molding sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105170880A true CN105170880A (en) | 2015-12-23 |
Family
ID=54893566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510510190.6A Pending CN105170880A (en) | 2015-08-19 | 2015-08-19 | Environment-friendly molding sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105170880A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282864A (en) * | 2017-08-15 | 2017-10-24 | 合肥正明机械有限公司 | A kind of molding sand of cast nonferrous alloy |
| CN107414014A (en) * | 2017-08-15 | 2017-12-01 | 合肥正明机械有限公司 | A kind of high temperature resistant molding sand |
| CN107671234A (en) * | 2017-09-30 | 2018-02-09 | 江苏闽江矿业有限公司 | A kind of moulding sand for casting formula |
| CN110052570A (en) * | 2019-04-01 | 2019-07-26 | 蔡旭斌 | A kind of pollution-free environmentally friendly casting sand and preparation method thereof |
| CN110465618A (en) * | 2019-09-17 | 2019-11-19 | 含山县荣盛机械铸造有限公司 | A kind of preparation method of high-strength environment-friendly clay green-sand |
| CN111434637A (en) * | 2019-01-15 | 2020-07-21 | 浙江索鑫工贸有限公司 | Environment-friendly molding sand material and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61103640A (en) * | 1984-10-27 | 1986-05-22 | Daiwa Eng Kk | Heat-resistant starch mold for casting |
| CN102814460A (en) * | 2012-08-20 | 2012-12-12 | 合肥江淮铸造有限责任公司 | Casting molding sand and preparation method thereof |
| CN103272997A (en) * | 2013-04-16 | 2013-09-04 | 繁昌县恒鑫汽车零部件有限公司 | Precoated sand for iron casting |
| CN103521681A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Molding sand and preparation method thereof |
| CN103567367A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Anti-sticking molding sand for casting and preparation method thereof |
| CN104057016A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | High-permeability molding sand and preparation method thereof |
| CN104057014A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | Gray iron casting moulding sand and preparation method thereof |
| CN104057011A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | Casting molding sand for loam core and preparation method of casting molding sand |
| CN104475654A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | Rapid heat dissipation foundry molding sand and preparation method thereof |
| CN104525849A (en) * | 2014-11-28 | 2015-04-22 | 山东旭光得瑞高新材料股份有限公司 | Wet-type molding sand environmental protection material and preparation method thereof |
-
2015
- 2015-08-19 CN CN201510510190.6A patent/CN105170880A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61103640A (en) * | 1984-10-27 | 1986-05-22 | Daiwa Eng Kk | Heat-resistant starch mold for casting |
| CN102814460A (en) * | 2012-08-20 | 2012-12-12 | 合肥江淮铸造有限责任公司 | Casting molding sand and preparation method thereof |
| CN103272997A (en) * | 2013-04-16 | 2013-09-04 | 繁昌县恒鑫汽车零部件有限公司 | Precoated sand for iron casting |
| CN103567367A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Anti-sticking molding sand for casting and preparation method thereof |
| CN103521681A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Molding sand and preparation method thereof |
| CN104057016A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | High-permeability molding sand and preparation method thereof |
| CN104057014A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | Gray iron casting moulding sand and preparation method thereof |
| CN104057011A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | Casting molding sand for loam core and preparation method of casting molding sand |
| CN104475654A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | Rapid heat dissipation foundry molding sand and preparation method thereof |
| CN104525849A (en) * | 2014-11-28 | 2015-04-22 | 山东旭光得瑞高新材料股份有限公司 | Wet-type molding sand environmental protection material and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282864A (en) * | 2017-08-15 | 2017-10-24 | 合肥正明机械有限公司 | A kind of molding sand of cast nonferrous alloy |
| CN107414014A (en) * | 2017-08-15 | 2017-12-01 | 合肥正明机械有限公司 | A kind of high temperature resistant molding sand |
| CN107414014B (en) * | 2017-08-15 | 2019-12-06 | 宿州速果信息科技有限公司 | High-temperature-resistant molding sand |
| CN107671234A (en) * | 2017-09-30 | 2018-02-09 | 江苏闽江矿业有限公司 | A kind of moulding sand for casting formula |
| CN111434637A (en) * | 2019-01-15 | 2020-07-21 | 浙江索鑫工贸有限公司 | Environment-friendly molding sand material and preparation method thereof |
| CN110052570A (en) * | 2019-04-01 | 2019-07-26 | 蔡旭斌 | A kind of pollution-free environmentally friendly casting sand and preparation method thereof |
| CN110465618A (en) * | 2019-09-17 | 2019-11-19 | 含山县荣盛机械铸造有限公司 | A kind of preparation method of high-strength environment-friendly clay green-sand |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105170880A (en) | Environment-friendly molding sand | |
| CN104057014B (en) | A kind of molding sand for casting gray iron and preparation method thereof | |
| CN101934342B (en) | Molding sand for casting pressure plates | |
| CN103586395A (en) | Molding sand for automatic production line and preparation method thereof | |
| CN105057564A (en) | Molding sand with used sand recycled | |
| CN105618667A (en) | Refractory casting sand | |
| CN101934345A (en) | Molding sand for casting ductile iron casting | |
| CN104525849B (en) | A kind of tidal stencils casting sand environment-friendly materials and preparation method thereof | |
| CN105397020A (en) | Air permeable casting sand | |
| CN104084522B (en) | A kind of moulding sand for casting and preparation method thereof | |
| CN103521690A (en) | Easily-collapsible mud core molding sand and preparation method thereof | |
| CN101927315A (en) | Moulding sand for casting noumenal cast product | |
| CN102728781B (en) | Molding sand using cement as binder and producing method thereof | |
| CN103567358A (en) | Low gas forming amount molding sand for casting and preparation method thereof | |
| CN104646601A (en) | Molding sand for large mold core and preparation method thereof | |
| CN104841851A (en) | Environment-friendly energy-saving sand and production method thereof | |
| CN101934344B (en) | Moulding sand for vertically divided box-free shoot-squeeze moulding line | |
| CN104475648B (en) | A kind of high heat-resisting permeable resin molding sand and preparation method thereof | |
| CN104841858A (en) | Molding sand for improving surface quality of cast part and preparation method thereof | |
| CN104646595A (en) | Core molding sand containing spherical quartz and preparation method of core molding sand | |
| CN102503481B (en) | Environment-friendly molding sand and preparation method thereof | |
| CN104646594A (en) | Molding sand for machine molding and preparation method thereof | |
| CN105057565A (en) | High-quality molding sand and preparation method thereof | |
| CN103521682A (en) | Molding sand used for special casting mould surface and preparation method thereof | |
| CN104841854A (en) | Low-thermal-expansion molding sand and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |