CN105665614A - Casting sand for casting sand mold and preparing method of casting sand - Google Patents
Casting sand for casting sand mold and preparing method of casting sand Download PDFInfo
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- CN105665614A CN105665614A CN201610091779.1A CN201610091779A CN105665614A CN 105665614 A CN105665614 A CN 105665614A CN 201610091779 A CN201610091779 A CN 201610091779A CN 105665614 A CN105665614 A CN 105665614A
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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
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Abstract
The invention discloses casting sand for casting a sand mold and a preparing method of the casting sand and relates to the technical field of sand mold casting. The casting sand is prepared from, by weight part, 100-120 parts of silica sand, 15-20 parts of ceramic micro powder, 10-15 parts of volcanic ash, 10-15 parts of carclazyte, 8-12 parts of vermiculite powder, 8-12 parts of paraffin oil, 6-10 parts of alginic acid trimethylene glycol ester, 5-8 parts of asbestos powder, 5-8 parts of hydroxy propyl cellulose, 4-6 parts of xanthan gum, 3-5 parts of a silane coupling agent, 3-5 parts of graphite powder, 2-3 parts of nanometer zirconia, 1-2 parts of nanometer zinc powder and 50-60 parts of ethyl alcohol. The casting sand has good refractoriness, thermal stability, fluidity, breathability and liquid metal permeability resistance, molding of the sand mold and the mold core is facilitated, in addition, collapsibility is good after the casting sand is used, repeated use can be achieved, the casting cost is reduced, and therefore economic benefits are improved.
Description
Technical field:
The present invention relates to sand casting technical field, be specifically related to a kind of sand casting casting model powder and preparation method thereof.
Background technology:
Sand casting, is a kind of casting method producing foundry goods in sand mold, and steel, ferrum and most of non-ferrous alloy casting all can obtain with sand mould casting method. Modeling Material used by sand casting is cheap and easy to get, and Casting mold manufacturing is easy, to the single-piece production of foundry goods, produces by batch and produces in a large number and all adapt to, for a long time, is always up the basic technology in Foundry Production. The basic raw material manufacturing sand mold is casting model powder and moulding sand binder. The most frequently used casting model powder is siliceous sand. The special sand such as zircon sand, chromite sand, emergy are then used when the high-temperature behavior of silica sand can not meet instructions for use. But comparatively speaking, the price of special sand is higher, and mouldability is weaker than silica sand, therefore our company is expected under the premise of reduction cost, is aided with other additives to improve the refractoriness of silica sand.
Summary of the invention:
The technical problem to be solved is in that to provide one to have infiltrative sand casting casting model powder of excellent refractoriness, heat stability, mobility, breathability and anti-liquid metal and preparation method thereof.
The technical problem to be solved adopts following technical scheme to realize:
A kind of sand casting casting model powder, is made up of the raw material of following parts by weight:
Silica sand 100-120 part, ceramic 15-20 part, volcanic ash 10-15 part, hargil 10-15 part, vermiculite power 8-12 part, paraffin oil 8-12 part, propylene glycol alginate 6-10 part, flake asbestos 5-8 part, hydroxypropyl cellulose 5-8 part, xanthan gum 4-6 part, silane coupler 3-5 part, graphite powder 3-5 part, nano zircite 2-3 part, nano zinc powder 1-2 part, ethanol 50-60 part.
Described hargil uses front through pretreatment, its processing method is: add in 300-350 part ethanol by 90-100 part hargil and 10-15 part polyvinyl alcohol, 15min is soaked after mix homogeneously, it is again heated to reflux state isothermal holding 30min, it is subsequently adding 2-3 part concentrated nitric acid and 5-8 part sodium tripolyphosphate, after being sufficiently mixed under microwave frequency 2450MHz, power 800W microwave treatment 10min, mixture send into vacuum drier, powder made by the size-reduced machine of gained solid.
Hargil passes through pretreatment, it is possible to expands its internal capillary aperture and reduces repulsion between particle, thus improving breathability and mouldability.
The preparation method of a kind of sand casting casting model powder, comprises the steps:
(1) in paraffin oil, add propylene glycol alginate and xanthan gum, first heat to 50-60 DEG C of insulation mixing 10min, be again heated to 80-90 DEG C of insulation mixing 10min, obtain material I;
(2) in ethanol, ceramic and nano zinc powder are added, after mix homogeneously under microwave frequency 2450MHz, power 800W microwave treatment 10min, after naturally cool to adding hydroxypropyl cellulose and silane coupler, mix homogeneously after room temperature, after standing 30min, namely obtain material II;
(3) adding material I and nano zircite in material II, mixture is supersound process 30min under supersonic frequency 40kHz, power 50W, adds silica sand, volcanic ash, hargil, vermiculite power, flake asbestos and graphite powder, is sufficiently mixed uniformly.
The invention has the beneficial effects as follows: the present invention is with silica sand for primary raw material, it is aided with the auxiliary agents such as ceramic, sand casting casting model powder is prepared by modified and mixing, this casting model powder has the refractoriness of excellence, heat stability, mobility, breathability and anti-liquid metal permeability, it is beneficial to the molding of sand mold and core, and after use, collapsibility is good, it is possible to recycling, reduce casting cost, thus increasing economic efficiency.
Detailed description of the invention:
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with specific embodiment, the present invention is expanded on further.
Embodiment 1
(1) in 10 parts of paraffin oil, add 6 parts of propylene glycol alginates and 4 parts of xanthan gum, first heat to 50-60 DEG C of insulation mixing 10min, be again heated to 80-90 DEG C of insulation mixing 10min, obtain material I;
(2) in 50 parts of ethanol, 15 parts of ceramics and 2 parts of nano zinc powders are added, after mix homogeneously under microwave frequency 2450MHz, power 800W microwave treatment 10min, after naturally cool to adding 6 parts of hydroxypropyl celluloses and 3 parts of silane couplers after room temperature, mix homogeneously, namely obtains material II after standing 30min;
(3) in material II, material I and 2 parts of nano zircites are added, mixture is supersound process 30min under supersonic frequency 40kHz, power 50W, add 100 parts of silica sands, 10 parts of volcanic ash, 10 parts of hargils, 10 parts of vermiculite powers, 6 parts of flake asbestos and 3 parts of graphite powders, be sufficiently mixed uniformly.
The pretreatment of hargil: 90 parts of hargils and 12 parts of polyvinyl alcohol are added in 300 parts of ethanol, 15min is soaked after mix homogeneously, it is again heated to reflux state isothermal holding 30min, it is subsequently adding 2 parts of concentrated nitric acids and 6 parts of sodium tripolyphosphates, after being sufficiently mixed under microwave frequency 2450MHz, power 800W microwave treatment 10min, mixture sends into vacuum drier, and powder made by the size-reduced machine of gained solid.
Embodiment 2
(1) in 12 parts of paraffin oil, add 8 parts of propylene glycol alginates and 6 parts of xanthan gum, first heat to 50-60 DEG C of insulation mixing 10min, be again heated to 80-90 DEG C of insulation mixing 10min, obtain material I;
(2) in 60 parts of ethanol, 18 parts of ceramics and 1 part of nano zinc powder are added, after mix homogeneously under microwave frequency 2450MHz, power 800W microwave treatment 10min, after naturally cool to adding 8 parts of hydroxypropyl celluloses and 4 parts of silane couplers after room temperature, mix homogeneously, namely obtains material II after standing 30min;
(3) in material II, material I and 3 parts of nano zircites are added, mixture is supersound process 30min under supersonic frequency 40kHz, power 50W, add 110 parts of silica sands, 15 parts of volcanic ash, 12 parts of hargils, 8 parts of vermiculite powers, 8 parts of flake asbestos and 4 parts of graphite powders, be sufficiently mixed uniformly.
The pretreatment of hargil: 100 parts of hargils and 15 parts of polyvinyl alcohol are added in 350 parts of ethanol, 15min is soaked after mix homogeneously, it is again heated to reflux state isothermal holding 30min, it is subsequently adding 3 parts of concentrated nitric acids and 8 parts of sodium tripolyphosphates, after being sufficiently mixed under microwave frequency 2450MHz, power 800W microwave treatment 10min, mixture sends into vacuum drier, and powder made by the size-reduced machine of gained solid.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described. Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention. Claimed scope is defined by appending claims and equivalent thereof.
Claims (3)
1. a sand casting casting model powder, it is characterised in that be made up of the raw material of following parts by weight:
Silica sand 100-120 part, ceramic 15-20 part, volcanic ash 10-15 part, hargil 10-15 part, vermiculite power 8-12 part, paraffin oil 8-12 part, propylene glycol alginate 6-10 part, flake asbestos 5-8 part, hydroxypropyl cellulose 5-8 part, xanthan gum 4-6 part, silane coupler 3-5 part, graphite powder 3-5 part, nano zircite 2-3 part, nano zinc powder 1-2 part, ethanol 50-60 part.
2. sand casting casting model powder according to claim 1, it is characterized in that: described hargil uses front through pretreatment, its processing method is: add in 300-350 part ethanol by 90-100 part hargil and 10-15 part polyvinyl alcohol, 15min is soaked after mix homogeneously, it is again heated to reflux state isothermal holding 30min, it is subsequently adding 2-3 part concentrated nitric acid and 5-8 part sodium tripolyphosphate, after being sufficiently mixed under microwave frequency 2450MHz, power 800W microwave treatment 10min, mixture sends into vacuum drier, and powder made by the size-reduced machine of gained solid.
3. the preparation method of a sand casting casting model powder, it is characterised in that comprise the steps:
(1) in paraffin oil, add propylene glycol alginate and xanthan gum, first heat to 50-60 DEG C of insulation mixing 10min, be again heated to 80-90 DEG C of insulation mixing 10min, obtain material I;
(2) in ethanol, ceramic and nano zinc powder are added, after mix homogeneously under microwave frequency 2450MHz, power 800W microwave treatment 10min, after naturally cool to adding hydroxypropyl cellulose and silane coupler, mix homogeneously after room temperature, after standing 30min, namely obtain material II;
(3) adding material I and nano zircite in material II, mixture is supersound process 30min under supersonic frequency 40kHz, power 50W, adds silica sand, volcanic ash, hargil, vermiculite power, flake asbestos and graphite powder, is sufficiently mixed uniformly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610091779.1A CN105665614B (en) | 2016-02-17 | 2016-02-17 | A kind of sand casting casting model powder and preparation method thereof |
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| CN201610091779.1A CN105665614B (en) | 2016-02-17 | 2016-02-17 | A kind of sand casting casting model powder and preparation method thereof |
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| CN105665614B CN105665614B (en) | 2018-07-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096870A (en) * | 2017-07-03 | 2017-08-29 | 李吕军 | Reduce precoated sand of cast member surface detail and preparation method thereof |
| CN107138676A (en) * | 2017-04-25 | 2017-09-08 | 安徽索立德铸业有限公司 | A kind of defeated and dispersed auxiliary agent of casting water glass self-hardening sand |
| CN107325469A (en) * | 2017-06-26 | 2017-11-07 | 安徽安顺硅基玻璃原料有限公司 | A kind of silica sand pretreating agent and its application |
| CN110814273A (en) * | 2019-11-14 | 2020-02-21 | 安徽索立德铸业有限公司 | Modified molding sand with furan resin loaded with nano ceramic |
Citations (5)
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| JPS5850150A (en) * | 1981-09-21 | 1983-03-24 | Mitsubishi Heavy Ind Ltd | Molding sand for spray molding of mold |
| CN103521684A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Corundum-mullite modified 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 |
| CN104841851A (en) * | 2015-05-07 | 2015-08-19 | 马鞍山市恒毅机械制造有限公司 | Environment-friendly energy-saving sand and production method thereof |
| CN105108035A (en) * | 2015-08-11 | 2015-12-02 | 陈传松 | Low-thermal-expansion high-strength modified composite sodium silicate-bonded sand for steel casting and preparation method of modified composite sodium silicate-bonded sand |
-
2016
- 2016-02-17 CN CN201610091779.1A patent/CN105665614B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5850150A (en) * | 1981-09-21 | 1983-03-24 | Mitsubishi Heavy Ind Ltd | Molding sand for spray molding of mold |
| CN103521684A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Corundum-mullite modified 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 |
| CN104841851A (en) * | 2015-05-07 | 2015-08-19 | 马鞍山市恒毅机械制造有限公司 | Environment-friendly energy-saving sand and production method thereof |
| CN105108035A (en) * | 2015-08-11 | 2015-12-02 | 陈传松 | Low-thermal-expansion high-strength modified composite sodium silicate-bonded sand for steel casting and preparation method of modified composite sodium silicate-bonded sand |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138676A (en) * | 2017-04-25 | 2017-09-08 | 安徽索立德铸业有限公司 | A kind of defeated and dispersed auxiliary agent of casting water glass self-hardening sand |
| CN107325469A (en) * | 2017-06-26 | 2017-11-07 | 安徽安顺硅基玻璃原料有限公司 | A kind of silica sand pretreating agent and its application |
| CN107096870A (en) * | 2017-07-03 | 2017-08-29 | 李吕军 | Reduce precoated sand of cast member surface detail and preparation method thereof |
| CN110814273A (en) * | 2019-11-14 | 2020-02-21 | 安徽索立德铸业有限公司 | Modified molding sand with furan resin loaded with nano ceramic |
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| CN105665614B (en) | 2018-07-06 |
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