CN201791415U - Filter for casting - Google Patents
Filter for casting Download PDFInfo
- Publication number
- CN201791415U CN201791415U CN2010202311248U CN201020231124U CN201791415U CN 201791415 U CN201791415 U CN 201791415U CN 2010202311248 U CN2010202311248 U CN 2010202311248U CN 201020231124 U CN201020231124 U CN 201020231124U CN 201791415 U CN201791415 U CN 201791415U
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- filter
- casting
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- compression part
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Filtering Materials (AREA)
Abstract
The utility model discloses a filter for casting, which comprises a foamed ceramic filtering piece and a high-temperature resistant fiber compression piece which is arranged in the center of an upper surface of the foamed ceramic filtering piece. The filter for casting has the advantages of simple structure, low cost, high impact resistance and unbreakable property.
Description
Technical field
The utility model relates to casting industry, especially relates to a kind of casting filter.
Background technology
The liquid metal filtration, purification has become a kind of conventional process of producing high quality casting in recent years.The filter of placing in the filtration system of existing casting system has very big surface area, and many tiny field trashes are adsorbed owing to graviational interaction.Mainly there not to be the polymolecular layer physical absorption of selecting, field trash successively adheres on filter stand like this, till stopping up in this absorption.After in casting system, placing filter, liquid metal has changed flow regime in casting system, this makes that not only liquid metal changes laminar flow into from turbulent flow, it is steady to fill type, and other bulk impurity such as a large amount of oxide inclusions that exist in the molten metal, slag can sieve by the filter in the suitable aperture selected for use and are removed.In addition, formed " filter cake " formed by being mingled with greatly on surface, filter inlet place.Filter cake makes the liquid rheology thin, partly is captured on " filter cake " less than being mingled with also of filter webs hole dimension like this.Like this, the bits that in molten metal some can not float can be filtered device and block, and the bits that are blocked itself have produced filtering function, promptly formed bi-directional filtered, this shows, adopt this filtering technique can effectively eradicate bulk inclusion in the molten metal, remove fine foreign matter in the molten metal, improve institutional framework, effectively reduce gas and harmful element in the molten metal.
When producing metal wheel hub, often adopt wire netting, ceramic foam filter to filter at present.Wire netting is simple in production process, and cost is low, but easily the composition of some iron is brought in the molten metal in filter process, causes in the wheel hub iron content to uprise and reduces its performance.Secondly, be bonded at molten metal on the wire netting because iron-holder exceeds standard to become and can not utilize metal again.And ceramic foam filter is broken easily in filter process, and broken ceramic slag enters molten metal and can cause the quality of foundry goods to descend.In the existing metal wheel hub preparation process, filter generally is put in the bottom of branch flow cone and uses, and molten metal enters casting mold after by filter, and the cooling back forms required foundry goods.The flow of metallic solution is often bigger in practical operation, and its impulsive force is crossed by force can damage filter, and broken ceramic slag enters molten metal, thereby causes the defective of cast product.
Therefore, develop and a kind ofly can effectively remove impurity in the metallic solution, and sturdy and durable, and the casting filter that can not bring new impurity is that prior art is needed.
The utility model content
The utility model purpose is to provide a kind of casting filter, so that overcome the deficiency that the prior art middle filtrator is frangible and bring impurity easily to metallic solution.
For this reason, the utility model provides a kind of casting filter, comprising: foam ceramic filter spare, and the high-temperature fibre resistance to compression part that is arranged on foam ceramic filter spare upper surface center.
According to further improvement of the utility model, high-temperature fibre resistance to compression part is fixedlyed connected with foam ceramic filter spare.
According to further improvement of the utility model, as above to cast with filter and also comprise tack coat, tack coat places between high-temperature fibre resistance to compression part and the foam ceramic filter spare, with high-temperature fibre resistance to compression part and the fixing closely bonding of foam ceramic filter spare.
Further improve according to of the present utility model, the diameter of above-mentioned high-temperature fibre resistance to compression part is greater than the interior diameter that divides flow cone awl mouthful place in the filtration system.
A kind of casting of the utility model is simple with filtration device structure, with low cost, by upper surface center high-temperature fibre resistance to compression part is set at foam ceramic filter spare, strengthened the impact resistance of this filter, made according to a kind of casting of the present utility model to have overcome originally with filter because frangible and bring the deficiency of impurity to metallic solution.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.With reference to figure, the utility model is described in further detail below.
Description of drawings
Accompanying drawing constitute this specification a part, be used for further understanding the utility model, show preferred embodiment of the present utility model, and be used for illustrating principle of the present utility model with specification.Among the figure:
Fig. 1 shows according to the casting of the utility model embodiment structure of filter schematic diagram;
Fig. 2 shows the plan structure schematic diagram of the casting usefulness filter among Fig. 1; And
Fig. 3 shows in the filtration step of casting process according to the casting of the utility model embodiment user mode figure with filter.
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As Fig. 1 and shown in Figure 2, there is shown according to a kind of typical casting filter of the present utility model, comprise foam ceramic filter spare 2, be arranged on the high-temperature fibre resistance to compression part 1 of foam ceramic filter spare 2 upper surface centers, and place between high-temperature fibre resistance to compression part 1 and the foam ceramic filter spare 2, with the tack coat 3 of high-temperature fibre resistance to compression part 1 with foam ceramic filter spare 2 fixing bondings.
The material that can be used for forming tack coat includes but not limited to polyvinyl butyral resin (PVB), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), methylcellulose (MC), lignin, starch, Arabic gum, xanthans, dextrin, Ludox, phosphate, aluminium colloidal sol, waterglass and Alusil.
Foam ceramic filter spare can be selected different materials according to the molten metal of required filtration is different, and for example: aluminum filtration liquid is preferred but be not limited to aluminium oxide foam ceramic filter, and it is preferred but be not limited to the foam silicon carbide ceramics filter to filter copper liquid.
Foam ceramic filter spare is identical with existing ceramic foam filter in the utility model, the size in its aperture and the different of employed material and the molten metal that filtered different and different, the size in the aperture, inside of the utility model foam ceramic filter spare is selected to get final product according to the actual use needs of ceramic foam filter provided by the utility model.
High-temperature fibre resistance to compression part can be selected the higher fibrous material of fusing point for use, for example aluminum silicate fiber paper, mullite fiber paper, alumina fibre paper, Zirconium oxide fibre paper.
Simple with filtration device structure according to casting of the present utility model, preparation method is easy, by tack coat 3 with high-temperature fibre resistance to compression part 1 and foam ceramic filter spare 2 tight bond then hyperthermia drying get final product.
In not shown another embodiment that goes out, casting only comprises and foam ceramic filter spare 2 with filter, and the high-temperature fibre resistance to compression part 1 that is arranged on foam ceramic filter spare 2 upper surface centers, high-temperature fibre resistance to compression part 1 directly is bonded on the foam ceramic filter spare 2, and hyperthermia drying gets final product.
Fig. 5 shows in the filtration step of casting process according to the casting of the utility model embodiment user mode figure with filter, each parts among Fig. 5 are fiber resistance to compression part 1, foam ceramic filter spare 2, divide flow cone 5, ingate 6, sprue bush 7, material cylinder 8 and flow into liquid metal 9 in material cylinder 8, the diameter of high-temperature fibre resistance to compression part 1 needs the interior diameter greater than minute flow cone 5 awls mouthful place in the utility model, and filter is crushed when excessive with the impulsive force of avoiding metallic solution to flow being produced.
The utility model casting filter, by upper surface a resistant to elevated temperatures fiber resistance to compression part is set at originally frangible foam ceramic filter spare, under the prerequisite of having kept its good filter effect, strengthened the impact resistance of foam ceramic filter spare, solved the problem that causes other impurity in the metallic solution filter process for a long time easily, simultaneously, simple with filtration device structure according to casting of the present utility model, and easy to make, be beneficial to and promote the use of.
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. a casting filter is characterized in that, comprising: foam ceramic filter spare, and the high-temperature fibre resistance to compression part that is arranged on described foam ceramic filter spare upper surface center.
2. filter according to claim 1 is characterized in that, described high-temperature fibre resistance to compression part is fixedlyed connected with described foam ceramic filter spare.
3. filter according to claim 2, it is characterized in that, also comprise tack coat, described tack coat places between described high-temperature fibre resistance to compression part and the described foam ceramic filter spare, with described high-temperature fibre resistance to compression part and the fixing bonding of described foam ceramic filter spare.
4. according to each described filter of claim 1-3, it is characterized in that the diameter of described high-temperature fibre resistance to compression part is greater than the interior diameter that divides flow cone awl mouthful place in the filtration system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202311248U CN201791415U (en) | 2010-06-17 | 2010-06-17 | Filter for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202311248U CN201791415U (en) | 2010-06-17 | 2010-06-17 | Filter for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201791415U true CN201791415U (en) | 2011-04-13 |
Family
ID=43846334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202311248U Expired - Fee Related CN201791415U (en) | 2010-06-17 | 2010-06-17 | Filter for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201791415U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143681A (en) * | 2013-03-13 | 2013-06-12 | 邵宏 | Screen sticking machine for glass fiber filter screen for casting |
| CN103877790A (en) * | 2012-12-21 | 2014-06-25 | 济南圣泉倍进陶瓷过滤器有限公司 | Novel composite ceramic foam filter |
| CN106435207A (en) * | 2016-11-18 | 2017-02-22 | 西南铝业（集团）有限责任公司 | CFF filter plate compression device and pretreatment method |
-
2010
- 2010-06-17 CN CN2010202311248U patent/CN201791415U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877790A (en) * | 2012-12-21 | 2014-06-25 | 济南圣泉倍进陶瓷过滤器有限公司 | Novel composite ceramic foam filter |
| CN103143681A (en) * | 2013-03-13 | 2013-06-12 | 邵宏 | Screen sticking machine for glass fiber filter screen for casting |
| CN106435207A (en) * | 2016-11-18 | 2017-02-22 | 西南铝业（集团）有限责任公司 | CFF filter plate compression device and pretreatment method |
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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: 20110413 Termination date: 20150617 |
|
| EXPY | Termination of patent right or utility model |