CN107433319A - A kind of high-performance environment-friendly casting sand and preparation method thereof - Google Patents
A kind of high-performance environment-friendly casting sand and preparation method thereof Download PDFInfo
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- CN107433319A CN107433319A CN201710924179.3A CN201710924179A CN107433319A CN 107433319 A CN107433319 A CN 107433319A CN 201710924179 A CN201710924179 A CN 201710924179A CN 107433319 A CN107433319 A CN 107433319A
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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
- 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
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Abstract
The invention discloses a kind of high-performance environment-friendly casting sand, include the raw material of following parts by weight:Anti- 13 parts of vein additive, 24 parts of performance enhancers, 40 50 parts of quartzy roughing sand, 6 10 parts of cenosphere, 24 parts of zinc stearate, 46 parts of high temperature resistant additive, 8 14 parts of zircon sand, 12 parts of sodium carboxymethylcellulose, mineral banket 10 16 parts, ore fill out 9 13 parts of powder, 26 parts of old plasterboard, 37 parts of waste ceramic, 13 parts of slag, 59 parts of flyash, 12 parts of crystalline flake graphite.The present invention has excellent high temperature resistance performance, its gas permeability is strong, collapsibility is good, improves surface finish of casting, can greatly improve casting yield, effectively reduce the appearance of the casting flaws such as scab, burning into sand, casting cost is reduced, while the raw material components of the present invention are safe and reliable, take full advantage of discarded object, cost is relatively low, technique is concise, industrialized production easy to operate and realize, has higher practical value and good application prospect.
Description
Technical field
The present invention relates to metal casting technique field, and in particular to a kind of high-performance environment-friendly casting sand and its preparation side
Method.
Background technology
Effect of the molding sand in Foundry Production is particularly important, because of the poor quality of molding sand and caused by casting wasted product account for casting
The 30-50% of the total waste product of part.Requirement generally to molding sand is:1st, there is higher intensity and heat endurance, it is various to bear
The effect of external force and high temperature.What the 2nd, good mobility, i.e. molding sand were mutually shifted under external force or Action of Gravity Field itself between sand grains
Ability.3rd, certain plasticity, i.e. molding sand are deformed under external force, and the energy of given shape can be kept after external force removes
Power.4th, preferable gas permeability, i.e. molding sand hole pass through the ability of gas.5th, high collapsibility, also known as knockability, i.e., in casting
Whether molding sand is easily destroyed after solidification, if the performance easily removed from casting.
It is different that molding sand presses binding agent used, can be divided into clay-bonded sand, water-glass sand, cement bonded sand, quartz sand etc., with clay-bonded sand,
Water-glass sand and quartz sand it is most.Roughing sand, types of binder in molding sand etc. have material impact to the performance of casting, special
It is not that the sand formulation Sand particle diameter of traditional used in aluminium alloy casting is too big or too small, molding sand material for aluminium alloy casting
Footpath is too big, although gas permeability is preferable, aloxite part surface is relatively rough, and finish is bad, and molding sand material diameter is too small, causes sand mold
Gas permeability is bad, and aluminium casting has stomata generation.Domestic and international widely used coal dust clay green-sand, typically by roughing sand, binding agent,
Coal dust additive etc. is blended with water, the advantages of there is certain Sand sticking-resistant effect and the cost of material is low, production efficiency is high, but
Its consumption is big, discharge is serious, decomposes generation toxic gas pollution in casting process coal dust firing.And traditional molding sand casting
For the defects of making the scab of alloy product, stomata, crackle rate more than 15%, percent defective height causes the very big increasing of casting cost
Add.Therefore, no matter consider from the defects of conventional cast molding sand itself or be necessary from the point of view of casting flaw is reduced
A kind of brand-new casting sand product and corresponding preparation method are proposed, to solve above mentioned problem of the prior art.
The content of the invention
The defects of for prior art, it is an object of the invention to provide a kind of high-performance environment-friendly casting sand, the cast moulding
Sand has excellent high temperature resistance performance, and its gas permeability is strong, collapsibility is good, improves surface finish of casting, can greatly improve casting
Yield rate, the appearance of the casting flaws such as scab, burning into sand is effectively reduced, reduce casting cost, while the raw material components peace of the present invention
It is complete reliable, discarded object is taken full advantage of, cost is relatively low, and technique is concise, industrialized production easy to operate and realize, has higher
Practical value and good application prospect.
The present invention solves technical problem and adopted the following technical scheme that:
The invention provides a kind of high-performance environment-friendly casting sand, include the raw material of following parts by weight:
Anti- vein additive 1-3 parts, performance enhancers 2-4 parts, quartzy roughing sand 40-50 parts, cenosphere 6-10 parts, zinc stearate
2-4 parts, high temperature resistant additive 4-6 parts, zircon sand 8-14 parts, sodium carboxymethylcellulose 1-2 parts, mineral are banketed 10-16 parts, ore
Fill out powder 9-13 parts, old plasterboard 2-6 parts, waste ceramic 3-7 parts, slag 1-3 parts, flyash 5-9 parts, crystalline flake graphite 1-2 parts.
Preferably, the high-performance environment-friendly casting sand includes the raw material of following parts by weight:
Anti- 2 parts of vein additive, 3 parts of performance enhancers, 35 parts of quartzy roughing sand, 8 parts of cenosphere, 3 parts of zinc stearate, high temperature resistant
5 parts of additive, 11 parts of zircon sand, 1.5 parts of sodium carboxymethylcellulose, mineral banket 13 parts, ore fill out 11 parts of powder, old plasterboard 4
Part, 5 parts of waste ceramic, 2 parts of slag, 7 parts of flyash, 1.5 parts of crystalline flake graphite.
Preferably, the anti-vein additive be lithium carbonate, potassium carbonate, iron oxide black, pyrophillite powder, spodumene powder according to
Weight is than 1:1:7:4:The mixture of 3 compositions, the iron black specification was 200 mesh, the pyrophillite powder, spodumene powder
Specification be 100 mesh.
Preferably, the performance enhancers be calcium-base bentonite, zinc oxide, calcium carbonate, sodium tripolyphosphate, aluminum sulfate according to
Weight is than 7:1:4:1:The mixture of 1 composition.
Preferably, specification is that the quartz sand mass fraction of 30 mesh is 20% in the quartzy roughing sand, and specification is the quartz of 50 mesh
The mass fraction of sand is 30%, and specification is that the mass fraction of the quartz sand of 100 mesh is 40%, and specification is the quartz sand 10% of 200 mesh.
Preferably, the specification of the cenosphere was 150 mesh, and the specification of the zircon sand was 100 mesh.
Preferably, the high temperature resistant additive be nano titanium oxide, sodium metasilicate, calgon according to weight than 2:
9:The mixture of 1 composition.
Preferably, the mineral banket as attapulgite, bentonite, kaolin according to weight than 3:2:The mixing of 2 compositions
Thing;
The ore fill out powder for calcite powder, sepiolite powder, alum stone powder, fluorite powder according to weight than 2:3:1:2
The mixture of composition, the specification that the ore fills out powder were 100 mesh;
The slag be blast-furnace cinder, lime stone slag, gangue according to weight than 1:2:The mixture of 1 composition.
The present invention also provides a kind of method of high-performance environment-friendly casting sand, comprises the following steps:
Step 1, weigh prepare each component raw material on request;
Step 2, old plasterboard, waste ceramic, slag are added in high speed disintegrator and crushed, is ground in grinder is added, mistake
150 mesh sieves, remix mineral and banket, in flyash addition homogenizer, stirred in the case where speed of agitator is 200-300r/min
20-30 minutes, obtain mixture A;
Step 3, quartzy roughing sand, zircon sand, cenosphere, crystalline flake graphite are added in homogenizer, rotating speed 150-
250r/min, 20-30 minutes are stirred, mixture B is made;
Step 4, weight is heated to 55-65 DEG C for the water of 10-14 times of zinc stearate weight, adds planetary molding sand mixer
In, zinc stearate, anti-vein additive, performance enhancers, high temperature resistant additive are added, is 300-400r/ in speed of agitator
10-15 minutes are stirred under min, sequentially add sodium carboxymethylcellulose, the mixture A that ore fills out powder, prepared by step 2, step
The three mixture B prepared, in the case where speed of agitator is 600-800r/min, 15-25 minutes are stirred, produce the high-performance environment-friendly of invention
Casting sand.
Preferably, the preparation process of the high-performance environment-friendly casting sand is:
Step 1, weigh prepare each component raw material on request;
Step 2, old plasterboard, waste ceramic, slag are added in high speed disintegrator and crushed, is ground in grinder is added, mistake
150 mesh sieves, remix mineral and banket, in flyash addition homogenizer, 25 points are stirred in the case where speed of agitator is 250r/min
Clock, obtain mixture A;
Step 3, quartzy roughing sand, zircon sand, cenosphere, crystalline flake graphite are added in homogenizer, rotating speed 200r/
Min, stir 25 minutes, mixture B is made;
Step 4, weight is heated to 60 DEG C for the water of 12 times of zinc stearate weight, added in planetary molding sand mixer, then add
Enter zinc stearate, anti-vein additive, performance enhancers, high temperature resistant additive, 12 are stirred in the case where speed of agitator is 350r/min
Minute, sequentially add sodium carboxymethylcellulose, mixture prepared by the mixture A that ore fills out powder, prepared by step 2, step 3
B, in the case where speed of agitator is 700r/min, stir 20 minutes, produce the high-performance environment-friendly casting sand of invention.
Compared with prior art, the present invention has following beneficial effect:
(1)The present invention a kind of high-performance environment-friendly casting sand addition anti-vein additive, predominantly lithium carbonate, potassium carbonate,
Iron oxide black, pyrophillite powder, spodumene powder, it can increase the calorific intensity of core and thermoplasticity, reduce becoming for molding sand Thermal cracking
Gesture, reach closure crackle, increase molten metal osmotic resistance, prevent core gas from being spread into casting, effectively reduce casting arteries and veins
The generation of line defect.
(2)A kind of performance enhancers of high-performance environment-friendly casting sand addition of the present invention, predominantly calcium-base bentonite, oxygen
Change zinc, calcium carbonate, sodium tripolyphosphate, aluminum sulfate, a few person's compound actions can effectively improve the flatness of cast product, significantly drop
The sintering of molding sand on low part.
(3)Waste ceramic, the ore of a kind of high-performance environment-friendly casting sand addition of the present invention fill out powder and flyash, and one
Aspect reduces the use of super sea coal, on the other hand reduces production cost, make use of a large amount of discarded objects, reduce environmental pollution
The effect of sustainable development is reached.
(4)The present invention a kind of high-performance environment-friendly casting sand use quartz sand, used 30 mesh, 50 mesh, 100 mesh,
The molding sand of 200 four kinds of specifications of mesh, it not only ensure that gas permeability but also improved the finish of cast(ing) surface.
(5)A kind of high temperature resistant additive of high-performance environment-friendly casting sand addition of the present invention can effectively improve molding sand
Resistance to elevated temperatures, crystalline flake graphite, zinc stearate, the sodium carboxymethylcellulose of addition, scab of a few person's compound actions to casting, folder
The defects of sand, sand washing, stomata, significantly improves, and casting can be made further to improve finish.
(6)A kind of high-performance environment-friendly casting sand of the present invention has excellent high temperature resistance performance, and its gas permeability is strong, collapsibility
It is good, surface finish of casting is improved, casting yield can be greatly improved, effectively reduce going out for the casting flaws such as scab, burning into sand
It is existing, casting cost is reduced, while the raw material components of the present invention are safe and reliable, take full advantage of discarded object, cost is relatively low, technique letter
It is bright, industrialized production easy to operate and realize, there is higher practical value and good application prospect.
Embodiment
With reference to specific embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, shown
So, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the reality in the present invention
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is all belonged to
In the scope of protection of the invention.
Embodiment 1.
A kind of high-performance environment-friendly casting sand of the present embodiment, include the raw material of following parts by weight:
Anti- 1 part of vein additive, 2 parts of performance enhancers, 40 parts of quartzy roughing sand, 6 parts of cenosphere, 2 parts of zinc stearate, high temperature resistant
4 parts of additive, 8 parts of zircon sand, 1 part of sodium carboxymethylcellulose, mineral banket 10 parts, ore fill out 9 parts of powder, 2 parts of old plasterboard, useless
Abandon 3 parts of ceramics, 1 part of slag, 5 parts of flyash, 1 part of crystalline flake graphite.
Anti- vein additive in the present embodiment is lithium carbonate, potassium carbonate, iron oxide black, pyrophillite powder, spodumene powder are pressed
According to weight than 1:1:7:4:The mixture of 3 compositions, the iron black specification was 200 mesh, the pyrophillite powder, spodumene powder
The specification at end was 100 mesh.
Performance enhancers in the present embodiment are calcium-base bentonite, zinc oxide, calcium carbonate, sodium tripolyphosphate, aluminum sulfate are pressed
According to weight than 7:1:4:1:The mixture of 1 composition.
Specification is that the quartz sand mass fraction of 30 mesh is 20% in quartzy roughing sand in the present embodiment, and specification is the stone of 50 mesh
The mass fraction of sand is 30%, and specification is that the mass fraction of the quartz sand of 100 mesh is 40%, and specification is the quartz sand of 200 mesh
10%。
The specification of cenosphere in the present embodiment was 150 mesh, and the specification of the zircon sand was 100 mesh.
High temperature resistant additive in the present embodiment is nano titanium oxide, sodium metasilicate, calgon are according to weight ratio
2:9:The mixture of 1 composition.
Mineral in the present embodiment banket as attapulgite, bentonite, kaolin according to weight than 3:2:The mixing of 2 compositions
Thing;
Ore in the present embodiment fills out powder as calcite powder, sepiolite powder, alum stone powder, fluorite powder is according to weight ratio
2:3:1:The mixture of 2 compositions, the specification that the ore fills out powder was 100 mesh;
Slag in the present embodiment is blast-furnace cinder, lime stone slag, gangue according to weight than 1:2:The mixture of 1 composition.
A kind of preparation method of high-performance environment-friendly casting sand of the present embodiment, comprises the following steps:
Step 1, weigh prepare each component raw material on request;
Step 2, old plasterboard, waste ceramic, slag are added in high speed disintegrator and crushed, is ground in grinder is added, mistake
150 mesh sieves, remix mineral and banket, in flyash addition homogenizer, 20 points are stirred in the case where speed of agitator is 200r/min
Clock, obtain mixture A;
Step 3, quartzy roughing sand, zircon sand, cenosphere, crystalline flake graphite are added in homogenizer, rotating speed 150r/
Min, stir 20 minutes, mixture B is made;
Step 4, weight is heated to 55 DEG C for the water of 10 times of zinc stearate weight, added in planetary molding sand mixer, then add
Enter zinc stearate, anti-vein additive, performance enhancers, high temperature resistant additive, 10 are stirred in the case where speed of agitator is 300r/min
Minute, sequentially add sodium carboxymethylcellulose, mixture prepared by the mixture A that ore fills out powder, prepared by step 2, step 3
B, in the case where speed of agitator is 600r/min, stir 15 minutes, produce the high-performance environment-friendly casting sand of invention.
Embodiment 2.
A kind of high-performance environment-friendly casting sand of the present embodiment, include the raw material of following parts by weight:
Anti- 3 parts of vein additive, 4 parts of performance enhancers, 50 parts of quartzy roughing sand, 10 parts of cenosphere, 4 parts of zinc stearate, resistance to height
Warm 6 parts of additive, 14 parts of zircon sand, 2 parts of sodium carboxymethylcellulose, mineral banket 16 parts, ore fill out 13 parts of powder, old plasterboard 6
Part, 7 parts of waste ceramic, 3 parts of slag, 9 parts of flyash, 2 parts of crystalline flake graphite.
Anti- vein additive in the present embodiment is lithium carbonate, potassium carbonate, iron oxide black, pyrophillite powder, spodumene powder are pressed
According to weight than 1:1:7:4:The mixture of 3 compositions, the iron black specification was 200 mesh, the pyrophillite powder, spodumene powder
The specification at end was 100 mesh.
Performance enhancers in the present embodiment are calcium-base bentonite, zinc oxide, calcium carbonate, sodium tripolyphosphate, aluminum sulfate are pressed
According to weight than 7:1:4:1:The mixture of 1 composition.
Specification is that the quartz sand mass fraction of 30 mesh is 20% in quartzy roughing sand in the present embodiment, and specification is the stone of 50 mesh
The mass fraction of sand is 30%, and specification is that the mass fraction of the quartz sand of 100 mesh is 40%, and specification is the quartz sand of 200 mesh
10%。
The specification of cenosphere in the present embodiment was 150 mesh, and the specification of the zircon sand was 100 mesh.
High temperature resistant additive in the present embodiment is nano titanium oxide, sodium metasilicate, calgon are according to weight ratio
2:9:The mixture of 1 composition.
Mineral in the present embodiment banket as attapulgite, bentonite, kaolin according to weight than 3:2:The mixing of 2 compositions
Thing;
Ore in the present embodiment fills out powder as calcite powder, sepiolite powder, alum stone powder, fluorite powder is according to weight ratio
2:3:1:The mixture of 2 compositions, the specification that the ore fills out powder was 100 mesh;
Slag in the present embodiment is blast-furnace cinder, lime stone slag, gangue according to weight than 1:2:The mixture of 1 composition.
A kind of preparation method of high-performance environment-friendly casting sand of the present embodiment, comprises the following steps:
Step 1, weigh prepare each component raw material on request;
Step 2, old plasterboard, waste ceramic, slag are added in high speed disintegrator and crushed, is ground in grinder is added, mistake
150 mesh sieves, remix mineral and banket, in flyash addition homogenizer, 30 points are stirred in the case where speed of agitator is 300r/min
Clock, obtain mixture A;
Step 3, quartzy roughing sand, zircon sand, cenosphere, crystalline flake graphite are added in homogenizer, rotating speed 250r/
Min, stir 30 minutes, mixture B is made;
Step 4, weight is heated to 65 DEG C for the water of 14 times of zinc stearate weight, added in planetary molding sand mixer, then add
Enter zinc stearate, anti-vein additive, performance enhancers, high temperature resistant additive, 15 are stirred in the case where speed of agitator is 400r/min
Minute, sequentially add sodium carboxymethylcellulose, mixture prepared by the mixture A that ore fills out powder, prepared by step 2, step 3
B, in the case where speed of agitator is 800r/min, stir 25 minutes, produce the high-performance environment-friendly casting sand of invention.
Embodiment 3.
A kind of high-performance environment-friendly casting sand of the present embodiment, include the raw material of following parts by weight:
Anti- 2 parts of vein additive, 3 parts of performance enhancers, 35 parts of quartzy roughing sand, 8 parts of cenosphere, 3 parts of zinc stearate, high temperature resistant
5 parts of additive, 11 parts of zircon sand, 1.5 parts of sodium carboxymethylcellulose, mineral banket 13 parts, ore fill out 11 parts of powder, old plasterboard 4
Part, 5 parts of waste ceramic, 2 parts of slag, 7 parts of flyash, 1.5 parts of crystalline flake graphite.
Anti- vein additive in the present embodiment is lithium carbonate, potassium carbonate, iron oxide black, pyrophillite powder, spodumene powder are pressed
According to weight than 1:1:7:4:The mixture of 3 compositions, the iron black specification was 200 mesh, the pyrophillite powder, spodumene powder
The specification at end was 100 mesh.
Performance enhancers in the present embodiment are calcium-base bentonite, zinc oxide, calcium carbonate, sodium tripolyphosphate, aluminum sulfate are pressed
According to weight than 7:1:4:1:The mixture of 1 composition.
Specification is that the quartz sand mass fraction of 30 mesh is 20% in quartzy roughing sand in the present embodiment, and specification is the stone of 50 mesh
The mass fraction of sand is 30%, and specification is that the mass fraction of the quartz sand of 100 mesh is 40%, and specification is the quartz sand of 200 mesh
10%。
The specification of cenosphere in the present embodiment was 150 mesh, and the specification of the zircon sand was 100 mesh.
High temperature resistant additive in the present embodiment is nano titanium oxide, sodium metasilicate, calgon are according to weight ratio
2:9:The mixture of 1 composition.
Mineral in the present embodiment banket as attapulgite, bentonite, kaolin according to weight than 3:2:The mixing of 2 compositions
Thing;
Ore in the present embodiment fills out powder as calcite powder, sepiolite powder, alum stone powder, fluorite powder is according to weight ratio
2:3:1:The mixture of 2 compositions, the specification that the ore fills out powder was 100 mesh;
Slag in the present embodiment is blast-furnace cinder, lime stone slag, gangue according to weight than 1:2:The mixture of 1 composition.
A kind of preparation method of high-performance environment-friendly casting sand of the present embodiment, comprises the following steps:
Step 1, weigh prepare each component raw material on request;
Step 2, old plasterboard, waste ceramic, slag are added in high speed disintegrator and crushed, is ground in grinder is added, mistake
150 mesh sieves, remix mineral and banket, in flyash addition homogenizer, 25 points are stirred in the case where speed of agitator is 250r/min
Clock, obtain mixture A;
Step 3, quartzy roughing sand, zircon sand, cenosphere, crystalline flake graphite are added in homogenizer, rotating speed 200r/
Min, stir 25 minutes, mixture B is made;
Step 4, weight is heated to 60 DEG C for the water of 12 times of zinc stearate weight, added in planetary molding sand mixer, then add
Enter zinc stearate, anti-vein additive, performance enhancers, high temperature resistant additive, 12 are stirred in the case where speed of agitator is 350r/min
Minute, sequentially add sodium carboxymethylcellulose, mixture prepared by the mixture A that ore fills out powder, prepared by step 2, step 3
B, in the case where speed of agitator is 700r/min, stir 20 minutes, produce the high-performance environment-friendly casting sand of invention.
A kind of high-performance environment-friendly casting sand of the present invention has excellent high temperature resistance performance, and its gas permeability is strong, collapsibility is good,
Surface finish of casting is improved, casting yield can be greatly improved, effectively reduce the appearance of the casting flaws such as scab, burning into sand,
Casting cost is reduced, while the raw material components of the present invention are safe and reliable, take full advantage of discarded object, cost is relatively low, and technique is concise,
Industrialized production easy to operate and realize, there is higher practical value and good application prospect.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (10)
1. a kind of high-performance environment-friendly casting sand, it is characterised in that include the raw material of following parts by weight:
Anti- vein additive 1-3 parts, performance enhancers 2-4 parts, quartzy roughing sand 40-50 parts, cenosphere 6-10 parts, zinc stearate
2-4 parts, high temperature resistant additive 4-6 parts, zircon sand 8-14 parts, sodium carboxymethylcellulose 1-2 parts, mineral are banketed 10-16 parts, ore
Fill out powder 9-13 parts, old plasterboard 2-6 parts, waste ceramic 3-7 parts, slag 1-3 parts, flyash 5-9 parts, crystalline flake graphite 1-2 parts.
A kind of 2. high-performance environment-friendly casting sand according to claim 1, it is characterised in that the high-performance environment-friendly casting
Molding sand includes the raw material of following parts by weight:
Anti- 2 parts of vein additive, 3 parts of performance enhancers, 35 parts of quartzy roughing sand, 8 parts of cenosphere, 3 parts of zinc stearate, high temperature resistant
5 parts of additive, 11 parts of zircon sand, 1.5 parts of sodium carboxymethylcellulose, mineral banket 13 parts, ore fill out 11 parts of powder, old plasterboard 4
Part, 5 parts of waste ceramic, 2 parts of slag, 7 parts of flyash, 1.5 parts of crystalline flake graphite.
A kind of 3. high-performance environment-friendly casting sand according to claim 1 or 2, it is characterised in that the anti-vein addition
Agent be lithium carbonate, potassium carbonate, iron oxide black, pyrophillite powder, spodumene powder according to weight than 1:1:7:4:The mixture of 3 compositions,
The iron black specification was 200 mesh, and the pyrophillite powder, the specification of spodumene powder were 100 mesh.
A kind of 4. high-performance environment-friendly casting sand according to claim 1 or 2, it is characterised in that the performance enhancers
For calcium-base bentonite, zinc oxide, calcium carbonate, sodium tripolyphosphate, aluminum sulfate according to weight than 7:1:4:1:The mixture of 1 composition.
5. a kind of high-performance environment-friendly casting sand according to claim 1 or 2, it is characterised in that in the quartzy roughing sand
Specification is that the quartz sand mass fraction of 30 mesh is 20%, and specification is that the mass fraction of the quartz sand of 50 mesh is 30%, and specification is 100 mesh
Quartz sand mass fraction be 40%, specification be 200 mesh quartz sand 10%.
6. a kind of high-performance environment-friendly casting sand according to claim 1 or 2, it is characterised in that the cenosphere
Specification was 150 mesh, and the specification of the zircon sand was 100 mesh.
A kind of 7. high-performance environment-friendly casting sand according to claim 1 or 2, it is characterised in that the high temperature resistant addition
Agent be nano titanium oxide, sodium metasilicate, calgon according to weight than 2:9:The mixture of 1 composition.
A kind of 8. high-performance environment-friendly casting sand according to claim 1 or 2, it is characterised in that the mineral banket for
Attapulgite, bentonite, kaolin are according to weight than 3:2:The mixture of 2 compositions;
The ore fill out powder for calcite powder, sepiolite powder, alum stone powder, fluorite powder according to weight than 2:3:1:2
The mixture of composition, the specification that the ore fills out powder were 100 mesh;
The slag be blast-furnace cinder, lime stone slag, gangue according to weight than 1:2:The mixture of 1 composition.
A kind of 9. method for preparing high-performance environment-friendly casting sand as claimed in claim 1 or 2, it is characterised in that including with
Lower step:
Step 1, weigh prepare each component raw material on request;
Step 2, old plasterboard, waste ceramic, slag are added in high speed disintegrator and crushed, is ground in grinder is added, mistake
150 mesh sieves, remix mineral and banket, in flyash addition homogenizer, stirred in the case where speed of agitator is 200-300r/min
20-30 minutes, obtain mixture A;
Step 3, quartzy roughing sand, zircon sand, cenosphere, crystalline flake graphite are added in homogenizer, rotating speed 150-
250r/min, 20-30 minutes are stirred, mixture B is made;
Step 4, weight is heated to 55-65 DEG C for the water of 10-14 times of zinc stearate weight, adds planetary molding sand mixer
In, zinc stearate, anti-vein additive, performance enhancers, high temperature resistant additive are added, is 300-400r/ in speed of agitator
10-15 minutes are stirred under min, sequentially add sodium carboxymethylcellulose, the mixture A that ore fills out powder, prepared by step 2, step
The three mixture B prepared, in the case where speed of agitator is 600-800r/min, 15-25 minutes are stirred, produce the high-performance environment-friendly of invention
Casting sand.
A kind of 10. preparation method of high-performance environment-friendly casting sand according to claim 9, it is characterised in that the step
Suddenly it is:
Step 1, weigh prepare each component raw material on request;
Step 2, old plasterboard, waste ceramic, slag are added in high speed disintegrator and crushed, is ground in grinder is added, mistake
150 mesh sieves, remix mineral and banket, in flyash addition homogenizer, 25 points are stirred in the case where speed of agitator is 250r/min
Clock, obtain mixture A;
Step 3, quartzy roughing sand, zircon sand, cenosphere, crystalline flake graphite are added in homogenizer, rotating speed 200r/
Min, stir 25 minutes, mixture B is made;
Step 4, weight is heated to 60 DEG C for the water of 12 times of zinc stearate weight, added in planetary molding sand mixer, then add
Enter zinc stearate, anti-vein additive, performance enhancers, high temperature resistant additive, 12 are stirred in the case where speed of agitator is 350r/min
Minute, sequentially add sodium carboxymethylcellulose, mixture prepared by the mixture A that ore fills out powder, prepared by step 2, step 3
B, in the case where speed of agitator is 700r/min, stir 20 minutes, produce the high-performance environment-friendly casting sand of invention.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108356214A (en) * | 2018-05-03 | 2018-08-03 | 云南衡纬科技有限公司 | Green moulding sand additive and its application method |
CN110052570A (en) * | 2019-04-01 | 2019-07-26 | 蔡旭斌 | A kind of pollution-free environmentally friendly casting sand and preparation method thereof |
CN113231599A (en) * | 2021-05-20 | 2021-08-10 | 云南太标精工铸造有限公司 | Casting coating capable of improving surface smoothness of casting |
CN116099979A (en) * | 2023-04-17 | 2023-05-12 | 山东鸿源新材料有限公司 | Metal mold coating for solving pinhole problem of aluminum alloy castings and preparation method thereof |
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DE3841473A1 (en) * | 1988-12-09 | 1990-06-13 | Heinze Gerald | Moulding sand for foundry purposes |
CN103586396A (en) * | 2013-10-16 | 2014-02-19 | 昌利锻造有限公司 | Molding sand for non-ferrous castings and preparation method thereof |
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 |
CN104525833A (en) * | 2014-12-01 | 2015-04-22 | 繁昌县恒鑫汽车零部件有限公司 | Iron-ore slag clay molding sand and preparation method thereof |
CN105170879A (en) * | 2015-09-21 | 2015-12-23 | 蚌埠冠宜型材科技有限公司 | Casting molding sand with strength increased |
CN106111883A (en) * | 2016-08-18 | 2016-11-16 | 娄土岭 | A kind of multi-function casting moulding sand and manufacture method thereof |
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DE3841473A1 (en) * | 1988-12-09 | 1990-06-13 | Heinze Gerald | Moulding sand for foundry purposes |
CN103586396A (en) * | 2013-10-16 | 2014-02-19 | 昌利锻造有限公司 | Molding sand for non-ferrous castings and preparation method thereof |
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 |
CN104525833A (en) * | 2014-12-01 | 2015-04-22 | 繁昌县恒鑫汽车零部件有限公司 | Iron-ore slag clay molding sand and preparation method thereof |
CN105170879A (en) * | 2015-09-21 | 2015-12-23 | 蚌埠冠宜型材科技有限公司 | Casting molding sand with strength increased |
CN106111883A (en) * | 2016-08-18 | 2016-11-16 | 娄土岭 | A kind of multi-function casting moulding sand and manufacture method thereof |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108356214A (en) * | 2018-05-03 | 2018-08-03 | 云南衡纬科技有限公司 | Green moulding sand additive and its application method |
CN110052570A (en) * | 2019-04-01 | 2019-07-26 | 蔡旭斌 | A kind of pollution-free environmentally friendly casting sand and preparation method thereof |
CN113231599A (en) * | 2021-05-20 | 2021-08-10 | 云南太标精工铸造有限公司 | Casting coating capable of improving surface smoothness of casting |
CN116099979A (en) * | 2023-04-17 | 2023-05-12 | 山东鸿源新材料有限公司 | Metal mold coating for solving pinhole problem of aluminum alloy castings and preparation method thereof |
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Application publication date: 20171205 |