CN200998628Y - Magnetic dust gauze for the casting of nonferrous metals - Google Patents
Magnetic dust gauze for the casting of nonferrous metals Download PDFInfo
- Publication number
- CN200998628Y CN200998628Y CNU2007200332553U CN200720033255U CN200998628Y CN 200998628 Y CN200998628 Y CN 200998628Y CN U2007200332553 U CNU2007200332553 U CN U2007200332553U CN 200720033255 U CN200720033255 U CN 200720033255U CN 200998628 Y CN200998628 Y CN 200998628Y
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- CN
- China
- Prior art keywords
- spherical shell
- casting
- magnetic
- ferrous metals
- screen used
- 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.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Filtering Materials (AREA)
Abstract
The utility model relates to a magnetic filter screen for casting. A filter screen with meshes woven through high silica glass fiber is taken as a base plate, and a flame retardant layer is fixed at the outer part of the base plate, a magnetic layer is also fixed on the appearance surface of the flame retardant layer, the magnetic field intensity of the magnetic layer is less than 8000 G, and the base plate is spherical shell-shaped or disc-shaped and is provided with a bottom surface lower than the an upper plane. The filter screen of the utility model can also adsorb iron substances in liquid while adsorbing and intercepting tiny oxidized inclusion and air bubble in non-ferrous metal liquid, because the purity of castings is improved, the strength, the roughness, the mechanical process performance, and the finished product rate of manufactured products, etc. are improved, and the production cost is reduced.
Description
Technical field
The utility model relates to a kind ofly can carry out filtering technique to motlten metal liquid, especially relates to a kind of magnetic filtration screen used for non-ferrous metals casting that irony in the non-ferrous metal liquid is filtered.
Background technology
The pore that produces in slag inclusion in the metal melting state and the casting cycle occupies larger specific gravity in casting defect.And in the molding sand casting, because dreg defect is inevitable, therefore for preventing that slag inclusion from entering die cavity, reduce the casting loss, select quality raw materials usually for use, improve the melting quality, and the complicated pouring device of employing, but still can not solve casting flaw fully, this method has not only increased the process complexity of casting, has also increased the consumption of molten metal simultaneously.Mostly adopt the casting filtering technique for this reason at present, improve casting quality.The casting filtering technique is with the high temperature fiber screen pack or/and ceramic filter is placed on the place, sprue gate of die cavity, directly molten metal is carried out filtration, purification, and its operating procedure is simple, can increase substantially finished casting rate, has obtained extensive use in foundry industry.And at present non-ferrous metal such as a large amount of employed aluminium or copper with and alloy material, all can influence the performance of its goods because of the irony in the non-ferrous metal.Therefore in the casting of non-ferrous metal, normally the magnet ring of a strong magnetic is placed on the top of high temperature filter screen, the slag inclusion in its liquid and pore and irony are filtered.But in casting process, the temperature of non-ferrous metal liquid is mostly greater than 650 ℃, therefore after the non-ferrous metal liquid of high temperature passes through magnet, magnet ring is lost magnetism rapidly, and lose the function of irony in the filtering metal liquid, and magnet ring also can't adsorb irony in the molten metal equably, does not therefore have a kind of more convenient reliable screen pack to filter the irony in the non-ferrous metal liquid at present.
Summary of the invention
The purpose of this utility model provides a kind of used for non-ferrous metals casting magnetic screen pack that can conveniently filter the irony in the non-ferrous metal liquid.
The utility model is that the technical scheme that achieves the above object is: a kind of magnetic filtration screen used for non-ferrous metals casting, become to have the filter screen of mesh by high silica glass fibrage as substrate, the external stability of base has flame retardant coating, it is characterized in that: the outside of described flame retardant coating also is fixed with magnetosphere, and this magnetospheric magnetic field intensity is less than 7000 Gausses.
The utility model adopts the high silica glass fibrous filter net as substrate, and this substrate not only has high-temperature-resistant layer, and the outside also has magnetosphere, because this magnetospheric magnetic field intensity is less than 7000 Gausses, so when the high temperature non-ferrous metal liquid passes through this screen pack, screen pack is in absorption and hold back small oxide slag inclusion thing in the non-ferrous metal liquid, bubble and when other has material, this magnetosphere at high temperature can not lose ferromagnetism rapidly, so the irony in the non-ferrous metal liquid can be adsorbed on this screen pack.The utility model is owing to be to be provided with magnetosphere on the surface of screen pack, and the mesh of filter screen is even laying substantially, therefore can farthest adsorb the irony in the non-ferrous metal liquid, and the purity of raising non-ferrous casting product, after adopting magnetic filtration screen of the present utility model, the intensity of goods, toughness, its machining property and yield rate etc. have all obtained improving effectively, can reduce the production cost of goods
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is one of structural representation of the utility model magnetic filtration screen used for non-ferrous metals casting.
Fig. 2 is that the side of Fig. 1 is shown structural representation.
Fig. 3 is the structure for amplifying schematic diagram of filter screen twine.
Fig. 4 be the utility model magnetic filtration screen used for non-ferrous metals casting structural representation two.
Fig. 5 is that the side of Fig. 4 is shown structural representation.
Fig. 6 be the utility model magnetic filtration screen used for non-ferrous metals casting structural representation three.
Fig. 7 is that the side of Fig. 6 is shown structural representation.
Wherein: the 1-substrate, the 2-flame retardant coating, the 3-magnetosphere, the 4-plane, the 5-flange,
The specific embodiment
See shown in Fig. 1～7, magnetic filtration screen used for non-ferrous metals casting of the present utility model, the filter screen that is become mesh by high silica glass fibrage is as substrate 1, see shown in Figure 3, the external stability of substrate 1 has flame retardant coating 2, appearance at flame retardant coating 2 also is fixed with magnetosphere 3, and the magnetic field intensity of this magnetosphere 3 is less than 7000 Gausses.This substrate 1 is a tabular; Or see shown in the books 1,2 that this substrate 1 is spherical shell shape or plate-like.Be the mechanical strength of raising screen pack, and conveniently place or remove screen pack, see that 1 its middle part of substrate of the present utility model shown in Fig. 4,5 is spherical shell shape, and have to its periphery extension plane 4 along the top of spherical shell; Be also shown in shown in Fig. 6,7, the middle part of substrate 1 is a spherical shell shape, and has the flange 5 of downward extension along the top of spherical shell; Or the middle part of substrate 1 is spherical shell shape, and is arranged with the leg that extends more than three downwards along the top of spherical shell.
Claims (6)
1, a kind of magnetic filtration screen used for non-ferrous metals casting, become meshed filter screen as substrate (1) by high silica glass fibrage, the external stability of substrate (1) has flame retardant coating (2), it is characterized in that: the outside of described flame retardant coating (2) also is fixed with magnetosphere (3), and the magnetic field intensity of this magnetosphere (3) is less than 7000 Gausses.
2, magnetic filtration screen used for non-ferrous metals casting according to claim 1 is characterized in that: described substrate (1) is a tabular.
3, magnetic filtration screen used for non-ferrous metals casting according to claim 1 is characterized in that: described substrate (1) is spherical shell shape or plate-like.
4, magnetic filtration screen used for non-ferrous metals casting according to claim 3 is characterized in that: the middle part of described substrate (1) is a spherical shell shape, and has the plane (4) of extending to its periphery along the top of spherical shell.
5, magnetic filtration screen used for non-ferrous metals casting according to claim 3 is characterized in that: the middle part of described substrate (1) is a spherical shell shape, and has downward flange (5) along the top of spherical shell.
6, magnetic filtration screen used for non-ferrous metals casting according to claim 3 is characterized in that: the middle part of described substrate (1) is a spherical shell shape, and is arranged with the leg that extends more than three downwards along the top of spherical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200332553U CN200998628Y (en) | 2007-01-11 | 2007-01-11 | Magnetic dust gauze for the casting of nonferrous metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200332553U CN200998628Y (en) | 2007-01-11 | 2007-01-11 | Magnetic dust gauze for the casting of nonferrous metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200998628Y true CN200998628Y (en) | 2008-01-02 |
Family
ID=39013036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200332553U Expired - Lifetime CN200998628Y (en) | 2007-01-11 | 2007-01-11 | Magnetic dust gauze for the casting of nonferrous metals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200998628Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941462A (en) * | 2018-07-05 | 2018-12-07 | 苏州广型模具有限公司 | Casting ceramic filter tube with heating compensation |
-
2007
- 2007-01-11 CN CNU2007200332553U patent/CN200998628Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941462A (en) * | 2018-07-05 | 2018-12-07 | 苏州广型模具有限公司 | Casting ceramic filter tube with heating compensation |
| CN108941462B (en) * | 2018-07-05 | 2020-05-19 | 苏州广型模具有限公司 | Ceramic filter tube with heating compensation for casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070111 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |