CN209303690U - Counter-pressure casting filter screen - Google Patents
Counter-pressure casting filter screen Download PDFInfo
- Publication number
- CN209303690U CN209303690U CN201822022999.6U CN201822022999U CN209303690U CN 209303690 U CN209303690 U CN 209303690U CN 201822022999 U CN201822022999 U CN 201822022999U CN 209303690 U CN209303690 U CN 209303690U
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- filter
- diameter
- filter net
- filter screen
- conical
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Abstract
The utility model provides a kind of counter-pressure casting filter screen, is made of conical filter net, cylindrical filtration and filter.Conical filter net cone lower end diameter is identical with sprue bush diameter, and the utility model is allow to be placed just at sprue bush upper surface.Conical filter net cone upper end diameter is identical with spreader diameter, and conical filter net cone upper end is compressed and is compacted by spreader conehead part after molding, plays the role of fixed filter screen.The diameter of cylindrical filtration is identical with the upper end diameter of conical filter net, and cylindrical filtration one end is connect with conical filter net, and the position of 3mm is stretched out in the lower end surface lower part that the other end extends to sprue bush, and connects filter in lower end surface.The utility model increases secondary filter function, improves the rigidity of structure of filter screen, and increased filter screen leaks the error-disable function put.
Description
Technical field
The utility model relates to aluminium alloy casting fields, more particularly to a kind of aluminium alloy counter-pressure casting filter screen.
Background technique
Counter-pressure casting aluminium alloy castings belong to bottom centre's pouring technology, and filter screen is arranged at lower die central runner, gold
Belong to the effects of flowing through filter screen before liquid fills type, play current stabilization, filter residue, filter screen plays particularly important in casting process
Effect is the effective ways for controlling casting slag inclusion and gas hole defect.
Existing counter-pressure casting fibrous filter net is conical structure, and top and bottom are hollow moulding, in casting process
Top hollow space is compressed and is compacted by spreader, and the pore grid by surrounding circular conical surface filters molten aluminum, can be played certain
Filter effect.But the molten aluminum rate of climb has fluctuation when due to filling type, and fibrous filter net material is partially soft, sometimes fibrous filter net
Deformation is washed out by molten aluminum, does not have filter effect, oxidized aluminum alloy slag inclusion can enter casting ontology, generate waste product.
Utility model content
In order to overcome the disadvantages of the above prior art, more preferable, the web that provides a kind of filter effect of the utility model
The better counter-pressure casting filter screen of rigidity.
The technical solution of the utility model is: counter-pressure casting filter screen, by conical filter net, cylindrical filtration and filtering
Piece composition, conical filter net, cylindrical filtration and filter are connected by connected nail.Conical filter net cone lower end diameter and
Sprue bush diameter is identical, and the utility model is allow to be placed just at sprue bush upper surface.Conical filter net cone upper end diameter
Identical with spreader diameter, conical filter net cone upper end is compressed and is compacted by spreader conehead part after molding, is played and was fixed
The effect of strainer.The diameter of cylindrical filtration is identical with the upper end diameter of conical filter net, cylindrical filtration one end and cone
The position of 3mm is stretched out in the connection of shape filter screen, the lower end surface lower part that the other end extends to sprue bush, and connects and filter in lower end surface
Piece.
Molten aluminum is filtered by cylindrical filter net and its lower end filter for the first time first in cavity filling process, later again through taper
Filter screen carries out secondary filter and enters type chamber, improves molten aluminum quality.Filter screen structure forms conical filter net, column by three parts
Shape filter screen and filter composition, improve the rigidity of screen modules.Cylindrical filter net extends to the portion of sprue bush lower end 3mm
It is exceptionally exposed at outside casting pressing port, facilitates and judge whether the casting places filter screen.
The utility model structure is simple, increases secondary filter function, improves the rigidity of structure of filter screen, increased mistake
Strainer leaks the error-disable function put.So that the molten aluminum into type chamber is purer, aluminum liquid filling type process is more steady, and filter screen is rushed
Whether the defects of routed probability is lower, reduces bleb, slag inclusion is improved casting yield, while being placed to casting filter screen
Inspection method become more easy to accomplish, avoid manually leaking and let off the casting of strainer and come into the market, reduce client and complain.
Detailed description of the invention
Hereinafter, the embodiments of the present invention are described in detail in conjunction with attached drawing.
Fig. 1 is a kind of counter-pressure casting mold assembling schematic diagram of the utility model.
Fig. 2 is the filter screen structure schematic diagram of the utility model.
In figure: 1 is upper mold, and 2 be lower die, and 3 be spreader, and 4 be lower die fission, and 5 be sprue bush, and 6 be casting, and 7 be filtering
Screen component.71 be conical filter net, and 72 be cylindrical filter net, and 73 be filter, and 74 be connected nail.
Specific embodiment
A kind of counter-pressure casting filter screen is made of, San Zhecai conical filter net 71, cylindrical filtration 72 and filter 73
Matter is Fiber Materials, and the conical filter net 71, cylindrical filtration 72 and filter 73 are connected by connected nail 74.Taper
71 cone lower end diameter of filter screen is identical with sprue bush diameter, and the utility model is allow to be placed just at sprue bush upper surface.
71 cone upper end diameter of conical filter net is identical with spreader diameter, and spreader conehead part will be on conical filter net 71 after molding
Side pressure is tight compact, and plays the role of fixed filter screen.The diameter of cylindrical filtration 72 and the cone upper end of conical filter net 71
Diameter is identical, and 72 one end of cylindrical filtration is connect with conical filter net 71, and the other end extends to the lower end surface lower part of sprue bush
The position of 3mm is stretched out, and connects filter 73 in lower end surface.
Molten aluminum is filtered by cylindrical filtration 72 and its lower end filter for the first time first in cavity filling process, is passed through again later
Conical filter net 71 carries out secondary filter and enters type chamber, improves molten aluminum quality.Conical filter net 71,72 and of cylindrical filtration
Filter 73 improves the rigidity of screen modules.The part that cylindrical filtration 72 extends to sprue bush lower end 3mm is exposed at
Outside casting pressing port, facilitates and judge whether the casting places filter screen.
The utility model increases secondary filter function, improves the rigidity of structure of filter screen, and increased filter screen leakage is put
Error-disable function.So that the molten aluminum into type chamber is purer, aluminum liquid filling type process is more steady, and filter screen is washed out probability more
Low, the defects of reducing bleb, slag inclusion, improves casting yield, while to the reviewing party whether casting filter screen is placed
Method becomes more easy to accomplish, and the casting that manually strainer is let off in leakage is avoided to come into the market, and reduces client and complains.
Claims (1)
1. a kind of counter-pressure casting filter screen, by conical filter net (71), cylindrical filtration (72), filter (73) and connected nail
(74) it forms, which is characterized in that conical filter net (71), cylindrical filtration (72), filter (73) are connected with connected nail (74)
It is connected into entirety；Conical filter net (71) cone lower end diameter is identical with sprue bush diameter, and conical filter net (71) cone upper end is straight
Diameter is identical with spreader diameter, and the diameter of cylindrical filtration (72) is identical with the cone upper end diameter of conical filter net (71),
Cylindrical filtration (72) one end is connect with conical filter net (71), and the lower end surface lower part that the other end extends to sprue bush is stretched out
The position of 3mm, and filter (73) are connected in lower end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822022999.6U CN209303690U (en) | 2018-12-04 | 2018-12-04 | Counter-pressure casting filter screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822022999.6U CN209303690U (en) | 2018-12-04 | 2018-12-04 | Counter-pressure casting filter screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209303690U true CN209303690U (en) | 2019-08-27 |
Family
ID=67675710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822022999.6U Active CN209303690U (en) | 2018-12-04 | 2018-12-04 | Counter-pressure casting filter screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209303690U (en) |
-
2018
- 2018-12-04 CN CN201822022999.6U patent/CN209303690U/en active Active
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