CN104959524A - Molding mixture for casting technology - Google Patents
Molding mixture for casting technology Download PDFInfo
- 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
- Authority
- 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
Links
Landscapes
- Mold Materials And Core Materials (AREA)
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
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%.
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
ID=54213702
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)
| 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)
| 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 |
-
2015
- 2015-07-02 CN CN201510380213.6A patent/CN104959524A/en active Pending
Patent Citations (3)
| 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)
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104959547A (en) | Flange casting process | |
| CN103495693A (en) | High-temperature-resisting easy collapse molding sand and preparation method thereof | |
| CN101934342B (en) | Molding sand for casting pressure plates | |
| CN104117628B (en) | A kind of graphite powder cast paint and preparation method thereof | |
| CN101934345A (en) | Molding sand for casting ductile iron casting | |
| CN105618667A (en) | Refractory casting sand | |
| CN104057017A (en) | Molding sand for large-size cast piece and preparation method thereof | |
| CN102423792A (en) | Casting coating prepared from casting resin sand regeneration dust | |
| CN104959521A (en) | Valve casing casting process | |
| CN104014715B (en) | A kind of preparation method of aluminum alloy cast moulding sand | |
| CN103302230A (en) | Special sand proportiom for casting | |
| CN103551488A (en) | Anti-adhesion foundry sand | |
| CN103586396A (en) | Molding sand for non-ferrous castings and preparation method thereof | |
| CN104174810A (en) | Casting process | |
| CN103495694A (en) | Yellow-soil foundry sand and preparation method thereof | |
| CN103498061A (en) | High-aluminium bauxite cast-moulding sand and preparation method thereof | |
| CN104959524A (en) | Molding mixture for casting technology | |
| CN106513565A (en) | Foundry molding sand | |
| CN104959523A (en) | Casting technology | |
| CN104384437A (en) | Foundry technology | |
| CN104057016A (en) | High-permeability molding sand and preparation method thereof | |
| CN103521682A (en) | Molding sand used for special casting mould surface and preparation method thereof | |
| CN106077424A (en) | A kind of new instrument casting resin sand | |
| CN104959522A (en) | Brake drum casting technology | |
| CN103406486B (en) | Casting sand for casting and moulding piano iron plates 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 |
Application publication date: 20151007 |
|
| RJ01 | Rejection of invention patent application after publication |