CN2104718U - Cap-like filtering apparatus casted by using molten mould - Google Patents
Cap-like filtering apparatus casted by using molten mould Download PDFInfo
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- CN2104718U CN2104718U CN 91227047 CN91227047U CN2104718U CN 2104718 U CN2104718 U CN 2104718U CN 91227047 CN91227047 CN 91227047 CN 91227047 U CN91227047 U CN 91227047U CN 2104718 U CN2104718 U CN 2104718U
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- casting
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- cap
- filter
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Abstract
The utility model relates to a cap type filtering apparatus cast by using molten moulds, which belongs to a filtering apparatus for purifying precision castings in the casting of molten moulds. The utility model is composed of a cap casing made by high temperature resistance material and a filtering medium arranged on the lower end of a through hole in the center of the cap casing. An annular mounting surface is arranged at the bottom of the apparatus. When the utility model is used, the annular mounting surface is arranged on a pouring cup of a casting mould group to be purified, and thus the casting can be carried out. Because the filtering apparatus has no need of installing in a mould group casting system, the utility model is flexible and convenient in use. Furthermore, because the filtering medium is made without the processes of dewaxing and high temperature smelting, the strength of the alloy is not reduced, the alloy is not polluted and the filtering effect is stable and reliable.
Description
The utility model is a kind of casting filter, and specifically, it belongs to a kind of filter that purifies precision casting in the model casting.
When adopting precision-investment casting method to produce precision casting, because that casting defect makes it percent defective is very high, it is the effective measures that improve the precision casting yield rate that molten metal is carried out filtration, purification.Be used at present the filtration of model casting molten metal both at home and abroad, except type external application ware filtered foundry alloy, to the method for generally employing type of foundry goods inner filtration, the filter that this method is used all was placed in the running gate system of fusible pattern module.For example: U.S. Pat 3815661 " technology of reduction oxidation defect in model casting " institute's use filter, " the HQ-1 type cast steel filter " of China Harbin Institute of Technology development and " the high-temperature fibre molten iron screen pack " sold in market etc., they all are before cast or filter are placed in the module during tubulation.This type inner filtration device must influence the original production order, increases operation, makes complicated operation, has increased the factor that produces waste product to production.Simultaneously, with regard to filter medium, intensity can greatly reduce in dewaxing fuses, even can be broken through when cast, causes quality problems.
The purpose of this utility model is to provide a kind of shortcoming that can overcome above-mentioned type inner filtration device, employing places the model casting hat type filter on the module cup, and making it can high-quality, purifies multiple model casting alloy cost-effectively, simple in structure, easy to use.
Technical solution of the present utility model is as follows:
A kind of model casting hat type filter is made up of cap shell and filter medium that exotic material is made.It is characterized in that cap shell central authorities have the through hole that is used for casting of molten metal, the lower end of cap shell through hole is mounted with filter medium, and an annular installed surface that can place on the investment-casting module cup is arranged at its bottom.
The cap shell of this model casting hat type filter can be that the investment-casting type shell material is made, and also can be made by refractory material.
The filter medium of this model casting hat type filter is made by exotic material, can be planar shaped, also can be basket shape.
Because the utility model is a kind of filter that places on the module cup, it is compared with existing type inner filtration device, advantage is clearly arranged: it does not influence the production routine of original investment-casting, thereby can not increase the factor that produces waste product and reduce production efficiency because of the placement filter device.The operation that used filter medium can cause its intensity to reduce without dewaxing and high-temperature melting, thereby filter effect is reliable and stable, can not pollute alloy.In addition, this hat type filter is flexible and convenient to use, can determine at any time whether to use according to the specification requirement and the quality of production situation of foundry goods, and can not influence normally carrying out of production.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is first embodiment profile of the present utility model;
Fig. 2 is second embodiment profile of the present utility model;
Fig. 3 is the 3rd an embodiment profile of the present utility model.
Embodiment: as the filter of Fig. 1, there is a through hole centre of the cap shell of being made by the investment-casting type shell material 1, and the filter medium that settle the bottom of cap shell through hole is a planar shaped high-temperature fibre screen pack 2, and the mounting plane of a ring step is arranged.When casting needs to use this filter, as long as the mounting plane of this filter is shelved on the cup 3 of foundry goods module.The molten metal of cast injects from the through hole of this device cap shell, filters through filter screen 2 to enter in the module of investment-casting, reaches the purpose of filtration, purification.
Embodiment two: as the filter of Fig. 2, cap shell 1 ' make by refractory material, its middle part have a funnel-shaped hole, the bottom placement filter medium of through hole promptly have high-temperature fibre screen pack 2 ', this bottom of device have one the ring step mounting plane.When casting is used, with this mounting plane be shelved on the cup 3 of foundry goods module ' on.Its purification filtering course of work is with above-mentioned embodiment.
Embodiment three: as the filter of Fig. 3, on cap shell 1 " is an annulus of being made by the investment-casting type shell material; filter medium is mounting plane one end of basket shape high-temperature fibre screen pack 2 " iron chains are embedded in cap shell 1 "; when cast is used, this mounting plane is shelved on the cup 3 of foundry goods module ".Its purification filtering course of work is with above-mentioned two embodiment.
Claims (5)
1, a kind of model casting hat type filter, form by cap shell and filter medium that exotic material is made, it is characterized in that cap shell central authorities have the through hole that is used for casting of molten metal, the lower end of cap shell through hole is mounted with filter medium, and an annular installed surface that can place on the investment-casting module cup is arranged at the bottom.
2, model casting hat type filter according to claim 1 is characterized in that the cap shell made by the investment-casting type shell material.
3, model casting hat type filter according to claim 1 is characterized in that the cap shell made by refractory material.
4, model casting hat type filter according to claim 1 is characterized in that medium is a planar shaped.
5, model casting hat type filter according to claim 1 is characterized in that filter medium is a basket shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91227047 CN2104718U (en) | 1991-10-19 | 1991-10-19 | Cap-like filtering apparatus casted by using molten mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91227047 CN2104718U (en) | 1991-10-19 | 1991-10-19 | Cap-like filtering apparatus casted by using molten mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2104718U true CN2104718U (en) | 1992-05-20 |
Family
ID=4933014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91227047 Granted CN2104718U (en) | 1991-10-19 | 1991-10-19 | Cap-like filtering apparatus casted by using molten mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2104718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349675C (en) * | 2004-01-21 | 2007-11-21 | 雅马哈发动机株式会社 | Wire net filter for casting machine |
-
1991
- 1991-10-19 CN CN 91227047 patent/CN2104718U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349675C (en) * | 2004-01-21 | 2007-11-21 | 雅马哈发动机株式会社 | Wire net filter for casting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |