CN105728635A - Molding material for sand casting - Google Patents
Molding material for sand casting Download PDFInfo
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- CN105728635A CN105728635A CN201410744603.2A CN201410744603A CN105728635A CN 105728635 A CN105728635 A CN 105728635A CN 201410744603 A CN201410744603 A CN 201410744603A CN 105728635 A CN105728635 A CN 105728635A
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- sand
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Abstract
The invention discloses a molding material for sand casting. The molding material is characterized in that according to the formula, the molding material is composed of, by weight, 40%-50% of molding sand, 40%-55% of core sand, smaller than or equal to 0.5% of silt, smaller than or equal to 0.5% of water and higher than 97% of SiO2, and the molding sand is composed of, by weight, 70%-80% of reclaimed sand, 15%-20% of fresh sand, 2%-3% of water glass and 0.5%-0.8% of an organic ester curing agent; the core sand is composed of, by weight, 45%-60% of reclaimed sand, 40%-50% of fresh sand, 2%-3% of water glass and 0.3%-0.5% of an organic ester curing agent. According to the molding material for sand casting, the proportions of all the components are optimized and more reasonable, the percent of pass can be increased, and production cost is lowered.
Description
Technical field
The invention belongs to casting technique field, specifically the Modeling Material of a kind of sand casting.
Background technology
Be used for preparing molding sand in Foundry Production, the roughing sand of core sand is called foundry sand.The performance of molding sand is had important impact by the clay content of roughing sand, granule composition and shape etc..Clay content height can make type, the breathability of core and refractoriness reduce.Type, core sand permeability, intensity and refractoriness are had impact by the granule composition of roughing sand.And type, the mobility of core sand, breathability and intensity are also had impact by the grain shape of roughing sand.Along with client is more and more higher to prescription, casting technique needs constantly progressive and improves, and existing casting technique Modeling Material is unreasonable, and the conforming product rate usually produced is low, thus causing that the wasting of resources and production cost are high.
Summary of the invention
It is an object of the invention to for Shortcomings part in above-mentioned technology, the present invention provides the Modeling Material of a kind of sand casting, improves the quality of production, increases qualification rate, reduces production cost.
The technical scheme realizing the object of the invention is as follows:
A kind of Modeling Material of sand casting, it is characterised by, its press formula as below: described Modeling Material according to percentage by weight by molding sand 40-50%, core sand 40-55%, clay content≤0.5%, moisture≤0.5%, SiO2 content is more than 97%, described molding sand according to percentage by weight by 70-80% reclaimed sand, 15-20% fresh sand, 2-3% waterglass, 0.5-0.8% organic ester curing agent forms；Described core sand is according to percentage by weight by 45-60% reclaimed sand, 40-50% fresh sand, 2-3% waterglass, and 0.3-0.5% organic ester curing agent forms.
The present invention provides the Modeling Material of a kind of sand casting, each material mixture ratio more to optimize rationally, can increase qualification rate, reduces production cost.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
A kind of Modeling Material of sand casting, its press formula as below: described Modeling Material according to percentage by weight by molding sand 40-50%, core sand 40-55%, clay content≤0.5%, moisture≤0.5%, SiO2 content more than 97%, described molding sand according to percentage by weight by 70-80% reclaimed sand, 15-20% fresh sand, 2-3% waterglass, 0.5-0.8% organic ester curing agent forms；Described core sand is according to percentage by weight by 45-60% reclaimed sand, 40-50% fresh sand, 2-3% waterglass, and 0.3-0.5% organic ester curing agent forms.
The present invention provides the Modeling Material of a kind of sand casting, each material mixture ratio more to optimize rationally, can increase qualification rate, reduces production cost.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work.All technical staff in the art, all should in the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (1)
1. the Modeling Material of a sand casting, it is characterised by, its press formula as below: described Modeling Material according to percentage by weight by molding sand 40-50%, core sand 40-55%, clay content≤0.5%, moisture≤0.5%, SiO2 content is more than 97%, described molding sand according to percentage by weight by 70-80% reclaimed sand, 15-20% fresh sand, 2-3% waterglass, 0.5-0.8% organic ester curing agent forms；Described core sand is according to percentage by weight by 45-60% reclaimed sand, 40-50% fresh sand, 2-3% waterglass, and 0.3-0.5% organic ester curing agent forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744603.2A CN105728635A (en) | 2014-12-09 | 2014-12-09 | Molding material for sand casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744603.2A CN105728635A (en) | 2014-12-09 | 2014-12-09 | Molding material for sand casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105728635A true CN105728635A (en) | 2016-07-06 |
Family
ID=56236973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410744603.2A Pending CN105728635A (en) | 2014-12-09 | 2014-12-09 | Molding material for sand casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105728635A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365748A (en) * | 2018-12-12 | 2019-02-22 | 上海航天精密机械研究所 | A kind of preparation method based on inorganic binder casting mold for Ti alloy casting |
| CN109516759A (en) * | 2018-11-14 | 2019-03-26 | 安徽中材新材料科技有限公司 | A kind of preparation method of castable refractory sand mold |
-
2014
- 2014-12-09 CN CN201410744603.2A patent/CN105728635A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516759A (en) * | 2018-11-14 | 2019-03-26 | 安徽中材新材料科技有限公司 | A kind of preparation method of castable refractory sand mold |
| CN109365748A (en) * | 2018-12-12 | 2019-02-22 | 上海航天精密机械研究所 | A kind of preparation method based on inorganic binder casting mold for Ti alloy casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |