CN102728776A - Low-cost environment-friendly molding sand and preparation method thereof - Google Patents
Low-cost environment-friendly molding sand and preparation method thereof Download PDFInfo
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- CN102728776A CN102728776A CN2012101870116A CN201210187011A CN102728776A CN 102728776 A CN102728776 A CN 102728776A CN 2012101870116 A CN2012101870116 A CN 2012101870116A CN 201210187011 A CN201210187011 A CN 201210187011A CN 102728776 A CN102728776 A CN 102728776A
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Abstract
The invention discloses a low-cost environment-friendly molding sand and a preparation method thereof. The molding sand is prepared by steps of: weighing raw materials of, by weight, 80-100 parts of fly ash, 20-30 parts of recycling sand, 10-20 parts of quartz sand, 5-15 parts of attapulgite clay, 3-8 parts of mullite sand, 3-5 of water glass, 5-10 parts of furan resin and 3-5 parts of steel fiber; and mixing the raw materials evenly. The low-cost environment-friendly molding sand of the invention has a reasonable formula; employment of steel fiber can increase the strength; reasonable cooperation of quartz sand and attapulgite clay can reduce cost and gain good air permeability, so as to benefit improvement on the quality of castings.
Description
Technical field
The present invention relates to casting technology field, be specifically related to a kind of low-cost environmental-protecting molding sand and preparation method thereof.
Background technology
The effect of molding sand in Foundry Production is very important; The casting wasted product that causes because of the poor quality of molding sand accounts for 30～50% of the total waste product of foundry goods; Usually the requirement to molding sand has intensity and heat endurance, flowability, plasticity, gas permeability and collapsibility; Promptly whether molding sand destroys easily behind casting solidification, the performance of whether removing from foundry goods easily.
At present, in the preparation process of molding sand, generally be mixed and made into by a certain percentage by fresh sand, old sand, binding agent and auxiliary material.
Summary of the invention
Deficiency and defective in order to alleviate prior art the object of the present invention is to provide a kind of low-cost environmental-protecting molding sand and preparation method thereof.
The present invention adopts following technical scheme to achieve these goals:
The low-cost environmental-protecting molding sand, the weight portion of its constitutive material is: flyash 80-100, return sand 20-30, quartz sand 10-20, attapulgite 5-15, mullite sand 3-8, waterglass 3-5, furane resins 5-10 and steel fibre 3-5.
Low-cost environmental-protecting molding sand, the weight portion of its constitutive material are flyash 90, return sand 25, quartz sand 15, attapulgite 10, mullite sand 5, waterglass 4, furane resins 8 and steel fibre 4.
The preparation method of low-cost environmental-protecting molding sand comprises: the weight portion by constitutive material takes by weighing flyash, return sand, quartz sand, attapulgite, mullite sand, waterglass, furane resins and steel fibre, mixes to obtain.
Beneficial effect of the present invention:
Low-cost environmental-protecting molding sand prescription of the present invention is reasonable, increases to adopt steel fibre to gain in strength, and quartz sand and attapulgite are reasonably combined, can reduce cost, and good permeability helps improving the quality of foundry goods.
The specific embodiment
Embodiment 1: the low-cost environmental-protecting molding sand, the weight portion of its constitutive material is: flyash 80, return sand 20, quartz sand 10, attapulgite 5, mullite sand 3, waterglass 3, furane resins 5 and steel fibre 3.
The preparation method of low-cost environmental-protecting molding sand comprises: the weight portion by constitutive material takes by weighing flyash, return sand, quartz sand, attapulgite, mullite sand, waterglass, furane resins and steel fibre, mixes to obtain.
Embodiment 2: low-cost environmental-protecting molding sand, the weight portion of its constitutive material are flyash 90, return sand 25, quartz sand 15, attapulgite 10, mullite sand 5, waterglass 4, furane resins 8 and 3-5mm steel fibre 4.
The preparation method of low-cost environmental-protecting molding sand comprises: the weight portion by constitutive material takes by weighing flyash, return sand, quartz sand, attapulgite, mullite sand, waterglass, furane resins and steel fibre, mixes to obtain.
Embodiment 3: the low-cost environmental-protecting molding sand, the weight portion of its constitutive material is: flyash 100, return sand 30, quartz sand 20, attapulgite 15, mullite sand 8, waterglass 5, furane resins 10 and 3-5mm steel fibre 5.
The preparation method of low-cost environmental-protecting molding sand comprises: the weight portion by constitutive material takes by weighing flyash, return sand, quartz sand, attapulgite, mullite sand, waterglass, furane resins and steel fibre, mixes to obtain.
Moulding-sand property: green compression strength >=0.18Mpa, gas permeability >=88, moisture 3.7-4.1, compact rate of molding 48-58, shatter index (j :) 85-86%.
Claims (3)
1. a low-cost environmental-protecting molding sand is characterized in that the weight portion of its constitutive material is: flyash 80-100, return sand 20-30, quartz sand 10-20, attapulgite 5-15, mullite sand 3-8, waterglass 3-5, furane resins 5-10 and steel fibre 3-5.
2. low-cost environmental-protecting molding sand according to claim 1, the weight portion that it is characterized in that its constitutive material are flyash 90, return sand 25, quartz sand 15, attapulgite 10, mullite sand 5, waterglass 4, furane resins 8 and steel fibre 4.
3. the preparation method of a low-cost environmental-protecting molding sand as claimed in claim 1; It is characterized in that comprising: the weight portion by constitutive material takes by weighing flyash, return sand, quartz sand, attapulgite, mullite sand, waterglass, furane resins and steel fibre, mixes to obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012101870116A CN102728776A (en) | 2012-06-08 | 2012-06-08 | Low-cost environment-friendly molding sand and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101870116A CN102728776A (en) | 2012-06-08 | 2012-06-08 | Low-cost environment-friendly molding sand and preparation method thereof |
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| CN102728776A true CN102728776A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101870116A Pending CN102728776A (en) | 2012-06-08 | 2012-06-08 | Low-cost environment-friendly molding sand and preparation method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521677A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Mud-core molding sand and preparation method thereof |
| CN103521690A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Easily-collapsible mud core molding sand and preparation method thereof |
| CN103567361A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Iron casting green sand and preparation method thereof |
| CN103567368A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Molding sand with high wet-heat tensile strength and preparation method thereof |
| CN104475645A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | High pressure modeling molding sand and preparation method thereof |
| CN104985105A (en) * | 2015-06-26 | 2015-10-21 | 瓮安县瑞丰贸易有限公司 | Novel water glass molding sand and preparation method thereof |
| CN105057564A (en) * | 2015-08-19 | 2015-11-18 | 合肥市田源精铸有限公司 | Molding sand with used sand recycled |
| CN105537505A (en) * | 2016-02-15 | 2016-05-04 | 芜湖市金贸流体科技股份有限公司 | Good-plasticity easy-to-mold molding sand for sluice valve and preparation method thereof |
| CN105728636A (en) * | 2016-03-08 | 2016-07-06 | 安徽省大吕精机有限公司 | High-temperature-resistant mold and manufacturing method thereof |
| CN105728647A (en) * | 2016-03-08 | 2016-07-06 | 安徽省大吕精机有限公司 | Anti-impact mold and manufacturing method thereof |
| CN105801139A (en) * | 2016-03-08 | 2016-07-27 | 安徽省大吕精机有限公司 | Smooth mould and manufacturing method thereof |
| CN105819738A (en) * | 2016-03-08 | 2016-08-03 | 安徽省大吕精机有限公司 | Anti-oxidation die and manufacturing method thereof |
| CN107214292A (en) * | 2017-06-28 | 2017-09-29 | 安徽华飞机械铸锻有限公司 | A kind of moulding sand for casting and preparation method thereof |
| CN107282859A (en) * | 2017-06-30 | 2017-10-24 | 安徽省辉煌机械制造有限公司 | A kind of swage molding sand for improving refractoriness |
| CN108296417A (en) * | 2017-09-29 | 2018-07-20 | 柳州市柳晶科技股份有限公司 | It is a kind of to be used for laser sintered and nanometer 3D printing technique precoated sand and preparation method thereof |
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| SU1261737A1 (en) * | 1984-04-25 | 1986-10-07 | Харьковский Филиал Всесоюзного Научно-Исследовательского Института Литейного Машиностроения,Литейной Технологии И Автоматизации Литейного Производства | Composition of cold-hardening sand for making moulds and cores |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567361A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Iron casting green sand and preparation method thereof |
| CN103567368A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Molding sand with high wet-heat tensile strength and preparation method thereof |
| CN103521677A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Mud-core molding sand and preparation method thereof |
| CN103521690A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Easily-collapsible mud core molding sand and preparation method thereof |
| CN104475645A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | High pressure modeling molding sand and preparation method thereof |
| CN104985105A (en) * | 2015-06-26 | 2015-10-21 | 瓮安县瑞丰贸易有限公司 | Novel water glass molding sand and preparation method thereof |
| CN105057564A (en) * | 2015-08-19 | 2015-11-18 | 合肥市田源精铸有限公司 | Molding sand with used sand recycled |
| CN105537505A (en) * | 2016-02-15 | 2016-05-04 | 芜湖市金贸流体科技股份有限公司 | Good-plasticity easy-to-mold molding sand for sluice valve and preparation method thereof |
| CN105728636A (en) * | 2016-03-08 | 2016-07-06 | 安徽省大吕精机有限公司 | High-temperature-resistant mold and manufacturing method thereof |
| CN105728647A (en) * | 2016-03-08 | 2016-07-06 | 安徽省大吕精机有限公司 | Anti-impact mold and manufacturing method thereof |
| CN105801139A (en) * | 2016-03-08 | 2016-07-27 | 安徽省大吕精机有限公司 | Smooth mould and manufacturing method thereof |
| CN105819738A (en) * | 2016-03-08 | 2016-08-03 | 安徽省大吕精机有限公司 | Anti-oxidation die and manufacturing method thereof |
| CN105728647B (en) * | 2016-03-08 | 2018-03-20 | 广州番禺昌森五金制品有限公司 | A kind of shock resistance mould |
| CN107214292A (en) * | 2017-06-28 | 2017-09-29 | 安徽华飞机械铸锻有限公司 | A kind of moulding sand for casting and preparation method thereof |
| CN107282859A (en) * | 2017-06-30 | 2017-10-24 | 安徽省辉煌机械制造有限公司 | A kind of swage molding sand for improving refractoriness |
| CN108296417A (en) * | 2017-09-29 | 2018-07-20 | 柳州市柳晶科技股份有限公司 | It is a kind of to be used for laser sintered and nanometer 3D printing technique precoated sand and preparation method thereof |
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Application publication date: 20121017 |