CN104959524A - Molding mixture for casting technology - Google Patents

Molding mixture for casting technology Download PDF

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Publication number
CN104959524A
CN104959524A CN201510380213.6A CN201510380213A CN104959524A CN 104959524 A CN104959524 A CN 104959524A CN 201510380213 A CN201510380213 A CN 201510380213A CN 104959524 A CN104959524 A CN 104959524A
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CN
China
Prior art keywords
weight
percentage
weight percent
casting
molding sand
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
Application number
CN201510380213.6A
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Chinese (zh)
Inventor
杨龙兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Yanggong Machinery Manufacturing Co Ltd
Original Assignee
Wuxi Yanggong Machinery Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Yanggong Machinery Manufacturing Co Ltd filed Critical Wuxi Yanggong Machinery Manufacturing Co Ltd
Priority to CN201510380213.6A priority Critical patent/CN104959524A/en
Publication of CN104959524A publication Critical patent/CN104959524A/en
Pending legal-status Critical Current

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Abstract

The invention provides a molding mixture for casting technology. The molding mixture comprises molding sand, 0.9 to 2.9 weight percent of calcium carbonate aqueous solution, 5.5 to 8.8 weight percent of silicate, 4 to 5 weight percent of lustrous carbon, 0.5 to 2.7 weight percent of zeolite, 0.5 to 1.0 weight percent of polycrystalline silicon dioxide, wherein the diameter of polycrystalline silicon dioxide spherical particles is 60 to 120nm. The molding sand prepared by the technology provided by the invention has the advantages of better air permeability, good flowability, higher strength and heat stability, and high plasticity.

Description

A kind of casting technique casting mold mixture
Technical field
The invention belongs to casting technology field, particularly relate to a kind of casting technique casting mold mixture.
Background technology
In recent years, at present, casting technique generally comprises moulding, cast, and cooling and knockout, the effect of molding sand in Foundry Production is very important, and the casting wasted product caused because of the poor quality of molding sand accounts for 30 ~ 50% of the total waste product of foundry goods.Usually to the requirement of molding sand be: 1. there is higher intensity and heat endurance, to bear the effect of various external force and high temperature.2. good mobility, i.e. the ability of molding sand mutual movement between sand grains under external force or Action of Gravity Field own.3. certain plasticity, namely molding sand is out of shape under external force, can keep the ability of the shape given after external force is removed.4. good gas permeability, namely molding sand hole is through the ability of gas.5. high collapsibility, whether, also known as knockability, namely after casting solidification, whether molding sand easily destroys, the easy performance removed from foundry goods.Common molding sand primarily of roughing sand, be stained with the compositions such as class binding agent, water and coal dust, it often well can not have the above-mentioned requirement to molding sand.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: the object of the present invention is to provide a kind of casting technique casting mold mixture.
(2) technical scheme
The invention provides a kind of casting technique casting mold mixture, comprise: molding sand, the calcium carbonate aqueous solution of 0.9%-2.9% percentage by weight, the silicate of 5.5%-8.8% percentage by weight, the bright carbon of 4-5% percentage by weight, the zeolite of 0.5-2.7% percentage by weight, the polycrystalline silica of 0.5%-1.0% percentage by weight, the diameter of polycrystalline spherical is 60-120 nanometer.
Preferably, described calcium carbonate weight percent is 2.0%.
Preferably, the percentage by weight of described silicate is 6.6%.
Preferably, the percentage by weight of described polycrystalline silica is 0.8%.
Beneficial effect of the present invention, adopt casting mold mixture of the present invention to carry out casting and make molding sand have good gas permeability, good mobility, have higher intensity and heat endurance, plasticity is strong.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
The invention provides a kind of casting technique casting mold mixture, comprise: molding sand, the calcium carbonate aqueous solution of 0.9%-2.9% percentage by weight, the silicate of 5.5%-8.8% percentage by weight, the bright carbon of 4-5% percentage by weight, the zeolite of 0.5-2.7% percentage by weight, the polycrystalline silica of 0.5%-1.0% percentage by weight, the diameter of polycrystalline spherical is 60-120 nanometer.
Preferably, described calcium carbonate weight percent is 2.0%.
Preferably, the percentage by weight of described silicate is 6.6%.
Preferably, the percentage by weight of described polycrystalline silica is 0.8%.
Beneficial effect of the present invention, adopt casting mold mixture of the present invention to carry out casting and make molding sand have good gas permeability, good mobility, have higher intensity and heat endurance, plasticity is strong.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.

Claims (4)

1. a casting technique casting mold mixture, it is characterized in that, comprise: molding sand, the calcium carbonate aqueous solution of 0.9%-2.9% percentage by weight, the silicate of 5.5%-8.8% percentage by weight, the bright carbon of 4-5% percentage by weight, the zeolite of 0.5-2.7% percentage by weight, the polycrystalline silica of 0.5%-1.0% percentage by weight, the diameter of polycrystalline spherical is 60-120 nanometer.
2. according to the casting mold mixture of the casting technique described in claim 1, it is characterized in that, described calcium carbonate weight percent is 2.0%.
3. according to the casting mold mixture of the casting technique described in claim 1, it is characterized in that, the percentage by weight of described silicate is 6.6%.
4. according to the casting mold mixture of the casting technique described in claim 1, it is characterized in that, the percentage by weight of described polycrystalline silica is 0.8%.
CN201510380213.6A 2015-07-02 2015-07-02 Molding mixture for casting technology Pending CN104959524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510380213.6A CN104959524A (en) 2015-07-02 2015-07-02 Molding mixture for casting technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510380213.6A CN104959524A (en) 2015-07-02 2015-07-02 Molding mixture for casting technology

Publications (1)

Publication Number Publication Date
CN104959524A true CN104959524A (en) 2015-10-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510380213.6A Pending CN104959524A (en) 2015-07-02 2015-07-02 Molding mixture for casting technology

Country Status (1)

Country Link
CN (1) CN104959524A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106513562A (en) * 2016-04-29 2017-03-22 曲阜市龙祥冶铸辅料有限公司 Molding sand powder and processing production method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100224755A1 (en) * 2007-05-02 2010-09-09 Ashland-Südchemie-Kernfest GmbH Coating compounds for casting moulds and cores that prevent reaction gas defects
CN102366810A (en) * 2011-10-10 2012-03-07 陈伟军 Casting process
CN104174810A (en) * 2014-08-29 2014-12-03 无锡柯马机械有限公司 Casting process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100224755A1 (en) * 2007-05-02 2010-09-09 Ashland-Südchemie-Kernfest GmbH Coating compounds for casting moulds and cores that prevent reaction gas defects
CN102366810A (en) * 2011-10-10 2012-03-07 陈伟军 Casting process
CN104174810A (en) * 2014-08-29 2014-12-03 无锡柯马机械有限公司 Casting process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106513562A (en) * 2016-04-29 2017-03-22 曲阜市龙祥冶铸辅料有限公司 Molding sand powder and processing production method thereof

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Application publication date: 20151007

RJ01 Rejection of invention patent application after publication