CN203508929U - Double-layer filter for casting - Google Patents
Double-layer filter for casting Download PDFInfo
- Publication number
- CN203508929U CN203508929U CN201320608742.3U CN201320608742U CN203508929U CN 203508929 U CN203508929 U CN 203508929U CN 201320608742 U CN201320608742 U CN 201320608742U CN 203508929 U CN203508929 U CN 203508929U
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- filter
- casting
- double
- layer filter
- utility
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Ceramic Products (AREA)
- Filtering Materials (AREA)
Abstract
The utility model discloses a double-layer filter for casting. The double-layer filter for casting comprises a shell, wherein a filter installation area is formed in the upper part of the shell, the filter installation area is provided with a silicon carbide filter and a porous ceramic sheet from top to bottom, the silicon carbide filter is located above the porous ceramic sheet, a sprue base is formed at the lower part of the shell, and an outlet is formed in the bottom of the sprue base. By using the double-layer filter, a good slag-blocking effect can be realized and the breakage or crack of the filter can be avoided, thus solving the problems of slag inclusion and defect inclusion occurring in large castings, improving the quality of the castings, and reducing cost investment and energy consumption; moreover, the double-layer filter for casting disclosed by the utility model is simple in structure and firm in assembly.
Description
Technical field
The utility model relates to casting field, is specifically related to a kind of casting bilayer filter.
Background technology
After large-sized iron casting has been produced; there is the defect of slag inclusion in the surface that often can see foundry goods; these defects greatly reduce continuity and the mechanics of surface intensity of foundry goods; when serious, can cause penetrating crack; and may cause the foundry goods that has air-tightness to require to be difficult to meet nominal situation requirement; thereby generation waste product, waste great amount of cost drops into and energy resource consumption.
The filter that occurs in recent years a kind of silicon carbide material, for the production of conventional foundry goods, greatly reduces the defect that slag inclusion appears in foundry goods, has improved casting quality.But this type of filter is generally applicable to the foundry goods that tonnage is lighter, for the heavier foundry goods of tonnage, in casting process, molten iron for a long time constantly by or wash away filter, because of strength decreased under filter high temperature, wash away for a long time and very easily cause gas turbine inlet filter rupture and breakage, and filter fragment after these breakages can enter die cavity through running gate system along with molten iron, and wrapped up by molten iron, a part that forms foundry goods causes foundry goods to occur being mingled with.
Therefore the filter that, is applicable to heavy castings cast must meet following requirement: 1. filter should have good filter effect, has again high refractoriness and high temperature strength, under high temperature, must not have distortion, cracking; 2. the making of filter or assembly structure are simple and reliable.
Utility model content
The purpose of this utility model is to provide a kind of good filtration effect and has the casting bilayer filter of high refractoriness.
The purpose of this utility model is achieved through the following technical solutions: casting bilayer filter, comprise housing, the top of housing is provided with filter installing zone, described filter installing zone is provided with carborundum filter and potsherd with holes from top to bottom, carborundum filter bits is in the top of potsherd with holes, lower housing portion forms a well, and well bottom is provided with outlet.
Described well is shaped as bowl-type.
Described inner walls arranges aluminium oxide high-temperature-resistant layer, and housing outer wall arranges promising silicon nitride layer.
The utility model casting by the course of work of bilayer filter is: in molten steel pouring course, molten iron is first by carborundum filter, bits in molten iron and impurity are left on filter, filter pure molten iron and by potsherd with holes, enter foundry goods die cavity subsequently.
The beneficial effects of the utility model are: the potsherd of placing again a high refractoriness in the bottom surface of the carborundum filter of low refractoriness is as support, carborundum has the effective advantage of pushing off the slag and the low shortcoming of refractoriness, and potsherd has advantages of high refractoriness, advantage in conjunction with two kinds of materials, adopt bilayer filter, the pushing off the slag effect that not only can play but also can not cause the damaged or cracking of filter, thereby solved the problem that slag inclusion and inclusion defect appear in heavy castings, improved the quality of foundry goods, reduced cost and dropped into and energy resource consumption; And the utility model is simple in structure, it is firm to assemble.
Accompanying drawing explanation
Fig. 1 is the structural representation of bilayer filter for the utility model casting.
1 is carborundum filter, and 2 is potsherd with holes, and 3 is housing, and 4 is silicon nitride layer, and 5 is aluminium oxide high-temperature-resistant layer, and 6 is outlet, and 7 is well, and 8 is filter installing zone.
The specific embodiment
With reference to Fig. 1, casting bilayer filter, comprise housing 3, the top of housing 3 is provided with filter installing zone 8, described filter installing zone 8 is provided with carborundum filter 1 and potsherd with holes 2 from top to bottom, carborundum filter 1 is positioned at the top of potsherd 2 with holes, and a well 7 is formed at housing 3 bottoms, and well 7 bottoms are provided with outlet.
Described well 7 is shaped as bowl-type.
Described inner walls arranges aluminium oxide high-temperature-resistant layer 5, and housing outer wall arranges promising silicon nitride layer 4.
The utility model casting by the course of work of bilayer filter is: in molten steel pouring course, molten iron is first by carborundum filter, bits in molten iron and impurity are left on filter, filter pure molten iron and by potsherd with holes, enter foundry goods die cavity subsequently.
The beneficial effects of the utility model are: the potsherd of placing again a high refractoriness in the bottom surface of the carborundum filter of low refractoriness is as support, carborundum has the effective advantage of pushing off the slag and the low shortcoming of refractoriness, and potsherd has advantages of high refractoriness, advantage in conjunction with two kinds of materials, adopt bilayer filter, the pushing off the slag effect that not only can play but also can not cause the damaged or cracking of filter, thereby solved the problem that slag inclusion and inclusion defect appear in heavy castings, improved the quality of foundry goods, reduced cost and dropped into and energy resource consumption; And the utility model is simple in structure, it is firm to assemble.
Claims (3)
1. casting bilayer filter, it is characterized in that: comprise housing, the top of housing is provided with filter installing zone, described filter installing zone is provided with carborundum filter and potsherd with holes from top to bottom, carborundum filter bits is in the top of potsherd with holes, lower housing portion forms a well, and well bottom is provided with outlet.
2. casting bilayer filter according to claim 1, is characterized in that: described well is shaped as bowl-type.
3. casting bilayer filter according to claim 1, is characterized in that: described inner walls arranges aluminium oxide high-temperature-resistant layer, and housing outer wall arranges promising silicon nitride layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320608742.3U CN203508929U (en) | 2013-09-29 | 2013-09-29 | Double-layer filter for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320608742.3U CN203508929U (en) | 2013-09-29 | 2013-09-29 | Double-layer filter for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203508929U true CN203508929U (en) | 2014-04-02 |
Family
ID=50367911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320608742.3U Expired - Fee Related CN203508929U (en) | 2013-09-29 | 2013-09-29 | Double-layer filter for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203508929U (en) |
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 |
| CN110180995A (en) * | 2019-05-29 | 2019-08-30 | 共享装备股份有限公司 | A kind of net filter used for casting and running gate system |
-
2013
- 2013-09-29 CN CN201320608742.3U patent/CN203508929U/en not_active Expired - Fee Related
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 |
| CN110180995A (en) * | 2019-05-29 | 2019-08-30 | 共享装备股份有限公司 | A kind of net filter used for casting and running gate system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20170929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |