CN103203431B - Filter for casting - Google Patents
Filter for casting Download PDFInfo
- Publication number
- CN103203431B CN103203431B CN201310161462.7A CN201310161462A CN103203431B CN 103203431 B CN103203431 B CN 103203431B CN 201310161462 A CN201310161462 A CN 201310161462A CN 103203431 B CN103203431 B CN 103203431B
- Authority
- CN
- China
- Prior art keywords
- cuboid
- millimeters
- holes
- round platform
- hole
- 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.)
- Active
Links
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a filter for casting, which can meet the requirement on the purity of molten iron and realize the purposes of low-flow-velocity stable mold filling of a large nodular iron casting. The filter for casting comprises a body (1) and a plurality of through holes (2) arranged on the body (1), wherein the body (1) is a cuboid in a shape of a cuboid; at least 1736 through holes (2) are distributed on the cuboid; a height value range of the cuboid is a closed interval [20mm, 30mm]; the axial direction of each through hole (2) is the height direction of the cuboid; the through holes (2) are truncated cone holes; the value range of an included angle (3) of the generatrixes of the truncated cone holes and the large ends of the truncated cone holes is a closed interval [87 degrees, 88 degrees]; the small ends of the truncated cone holes are molten iron inlets, and the large ends of the truncated cone holes are molten iron outlets; a plurality of the through holes (2) are arranged in column along the width direction of the cuboid; each column of the though holes (2) are sequentially distributed along the length direction of the cuboid; the circle center distance between the large ends of each two adjacent truncated cone holes is 1.5 times of the diameter of the large end of each truncated cone hole; and the value range of the diameter is a closed interval [4mm, 7mm].
Description
Technical field
The present invention relates to casting technology field, is specifically a kind of filter for casting.
Background technology
Under the requirement meeting iron liquid degree of purity, large-scale ductile iron part requires low flow velocity, Stable Filling, such as the applicant devises one for the 400MN(million Ns that casts) casting system of heavy aviation stamp forging hydraulic press sphere depression bar, this casting system comprises the sprue sequentially connected, first cross gate, filter for casting, second cross gate, annular ingate, concrete structure as shown in Figure 1, 400MN heavy aviation stamp forging hydraulic press sphere depression bar is a large-scale ductile iron part, require temperature about 1310 DEG C, weight reaches the QT700-2A(spheroidal graphite cast-iron trade mark of 14 tons) iron liquid within about 2 minutes time, filled type terminate, because spheroidal graphite cast-iron viscosity is large, so mobility is poor, in cavity filling process, need to take into full account flow velocity, relation between flow and strainability, otherwise, because spheroidal graphite cast-iron is large to filter for casting active force, easily cause through hole broken, even filter for casting cracking or fracture, and then cause generation secondary slag to enter in casting mold, therefore, the design importance of filter for casting is given prominence to, and prior art unexposed related art scheme or enlightenment are used for solving the problem.
Summary of the invention
The technical problem to be solved in the present invention is, there is provided a kind of can under the requirement meeting iron liquid degree of purity, realize the filter for casting of large-scale ductile iron part low flow velocity, Stable Filling object, have and stop the slag in iron liquid to enter in casting mold, and, iron flow velocity can be controlled under the prerequisite reaching requirement flow, contain turbulent phenomenon, and then the advantage of the casting quality of guarantee large-scale ductile iron part.
Technical scheme of the present invention is, filter for casting of the present invention, it comprises body, the through hole of the multiple formed objects be located on body, body is cuboid, cuboid is distributed with at least 1736 through holes, the height span of cuboid is closed interval [20 millimeters, 30 millimeters], and the axis of through hole is the short transverse of cuboid; Through hole is round platform hole, and the span of the angle of the bus in round platform hole and the large end place plane in round platform hole is closed interval [87 degree, 88 degree], and the small end in round platform hole is the import of iron liquid, and the large end in round platform hole is the outlet of iron liquid; Some through holes are in column along the width of cuboid, each row sequentially distribute along the length direction of cuboid, distance of center circle between the large end in each adjacent round platform hole is the diameter of the large end in 1.5 times of round platform holes, and the span of this diameter is closed interval [4 millimeters, 7 millimeters].
The length of cuboid be 690 millimeters, width to be the diameters being distributed with 1736 large ends within the scope of 166 millimeters the be round platform hole of 4 millimeters, the height of cuboid is 23 millimeters, and angle is 88 degree.
The length of cuboid be 690 millimeters, width to be the diameters being distributed with 1736 large ends within the scope of 166 millimeters the be round platform hole of 5 millimeters, the height of cuboid is 25 millimeters, and angle is 87.5 degree.
The length of cuboid be 690 millimeters, width to be the diameters being distributed with 1736 large ends within the scope of 166 millimeters the be round platform hole of 7 millimeters, the height of cuboid is 27 millimeters, and angle is 87 degree.
After adopting said structure, the present invention compared with prior art, have the following advantages: the non-prior art of said structure or normal experiment means can obtain, the applicant obtains said structure on the basis of long-term practice and further investigation, namely the quantity of through hole has been considered, cuboid height, shape of through holes, arrays of openings, spacing between the large end of through hole, through hole outside diameter is each because usually determining said structure, take into full account flow velocity, relation between flow and strainability, a balance is found between three, avoid in cavity filling process, the active force of spheroidal graphite cast-iron to filter for casting causes through hole broken, the phenomenon of filter cracking or fracture occurs, enable said structure under the requirement meeting iron liquid degree of purity, realize large-scale ductile iron part low flow velocity, Stable Filling object, have and stop the slag in iron liquid to enter in casting mold, and, iron flow velocity can be controlled under the prerequisite reaching requirement flow, contain turbulent phenomenon, and then the advantage of the casting quality of guarantee large-scale ductile iron part.
Accompanying drawing explanation
Fig. 1 is the structural representation of the casting system for 400MN heavy aviation stamp forging hydraulic press sphere depression bar of casting.
Fig. 2 is the structure enlarged diagram (because structure is longer, so represent by the centre section of cuing open) of filter for casting of the present invention.
Fig. 3 is the axial cutaway view Amplified image of the through hole of filter for casting of the present invention.
Shown in figure, 1, body, 2, through hole, 3, angle, 4, sprue, the 5, first cross gate, the 6, second cross gate, 7, annular ingate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
The applicant devises a casting system for 400MN heavy aviation stamp forging hydraulic press sphere depression bar of casting, this casting system comprises sprue 4, first cross gate 5, filter for casting, the second cross gate 6, the annular ingate 7 that sequentially connect, and concrete structure as shown in Figure 1.
Filter for casting of the present invention, it comprises body 1, the through hole 2 of the multiple formed objects be located on body 1, body 1 is rectangular-shaped cuboid, cuboid is distributed with at least 1736 through holes 2, the height span of cuboid is [20 millimeters, closed interval, 30 millimeters], the axis of through hole 2 is the short transverse of cuboid; Through hole 2 is round platform hole, and the span of the angle 3 of the bus in round platform hole and the large end place plane in round platform hole is closed interval [87 degree, 88 degree], and the small end in round platform hole is the import of iron liquid, and the large end in round platform hole is the outlet of iron liquid; Some through holes 2 are in column along the width of cuboid, in row, the center of circle of large end of each through hole is positioned on the straight line that extends in the width direction, each row sequentially distribute along the length direction of cuboid, distance of center circle between the large end in each adjacent round platform hole is the diameter of the large end in 1.5 times of round platform holes, the span of this diameter is closed interval [4 millimeters, 7 millimeters].
Embodiment 1, the length of cuboid be 690 millimeters, width to be the diameters being distributed with 1736 large ends within the scope of 166 millimeters the be round platform hole of 4 millimeters, the height of cuboid is 23 millimeters, and angle 3 is 88 degree.
Embodiment 2, the length of cuboid be 690 millimeters, width to be the diameters being distributed with 1736 large ends within the scope of 166 millimeters the be round platform hole of 5 millimeters, the height of cuboid is 25 millimeters, and angle 3 is 87.5 degree.
Embodiment 3, the length of cuboid be 690 millimeters, width to be the diameters being distributed with 1736 large ends within the scope of 166 millimeters the be round platform hole of 7 millimeters, the height of cuboid is 27 millimeters, and angle 3 is 87 degree.
Embodiment 4, the length of cuboid be 695 millimeters, width to be the diameters being distributed with 1750 large ends within the scope of 170 millimeters the be round platform hole of 4 millimeters, the height of cuboid is 23 millimeters, and angle 3 is 88 degree.
Embodiment 5, the length of cuboid be 700 millimeters, width to be the diameters being distributed with 1740 large ends within the scope of 176 millimeters the be round platform hole of 5 millimeters, the height of cuboid is 25 millimeters, and angle 3 is 87.5 degree.
Embodiment 6, the length of cuboid be 705 millimeters, width to be the diameters being distributed with 1736 large ends within the scope of 178 millimeters the be round platform hole of 7 millimeters, the height of cuboid is 27 millimeters, and angle 3 is 87 degree.
Claims (4)
1. a filter for casting, it is characterized in that, it comprises body (1), the through hole (2) of the multiple formed objects be located on body (1), body (1) is cuboid, cuboid is distributed with at least 1736 through holes (2), the height span of cuboid is closed interval [20 millimeters, 30 millimeters], and the axis of through hole (2) is the short transverse of cuboid; Through hole (2) is round platform hole, and the span of the angle (3) of the bus in round platform hole and the large end place plane in round platform hole is closed interval [87 degree, 88 degree], and the small end in round platform hole is the import of iron liquid, and the large end in round platform hole is the outlet of iron liquid; Some through holes (2) are in column along the width of cuboid, each row sequentially distribute along the length direction of cuboid, distance of center circle between the large end in each adjacent round platform hole is the diameter of the large end in 1.5 times of round platform holes, and the span of this diameter is closed interval [4 millimeters, 7 millimeters].
2. filter for casting according to claim 1, it is characterized in that, the length of cuboid be 690 millimeters, width to be the diameters being distributed with 1736 large ends within the scope of 166 millimeters the be round platform hole of 4 millimeters, the height of cuboid is 23 millimeters, and angle (3) is 88 degree.
3. filter for casting according to claim 1, it is characterized in that, the length of cuboid be 690 millimeters, width to be the diameters being distributed with 1736 large ends within the scope of 166 millimeters the be round platform hole of 5 millimeters, the height of cuboid is 25 millimeters, and angle (3) is 87.5 degree.
4. filter for casting according to claim 1, it is characterized in that, the length of cuboid be 690 millimeters, width to be the diameters being distributed with 1736 large ends within the scope of 166 millimeters the be round platform hole of 7 millimeters, the height of cuboid is 27 millimeters, and angle (3) is 87 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310161462.7A CN103203431B (en) | 2013-05-04 | 2013-05-04 | Filter for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310161462.7A CN103203431B (en) | 2013-05-04 | 2013-05-04 | Filter for casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103203431A CN103203431A (en) | 2013-07-17 |
| CN103203431B true CN103203431B (en) | 2015-05-06 |
Family
ID=48750953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310161462.7A Active CN103203431B (en) | 2013-05-04 | 2013-05-04 | Filter for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103203431B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US772720A (en) * | 1904-04-18 | 1904-10-18 | August Ladwig | Skim-gate for molds. |
| US2313517A (en) * | 1942-01-21 | 1943-03-09 | Meehanite Metal Corp | Foundry mold insert and method of making castings |
| US2835007A (en) * | 1954-03-12 | 1958-05-20 | William F Hoefer | Screen for molding flasks |
| AU452438B2 (en) * | 1972-06-23 | 1974-08-20 | Ess Goods Sales A Division Of Overseas Corporation (Australia) Limited | Improvements in or relating toa filtering device forthe casting of metals |
| CA1130980A (en) * | 1977-11-25 | 1982-09-07 | Swiss Aluminium Ltd. | Method for the filtration of molten metal |
| IT1151368B (en) * | 1981-03-27 | 1986-12-17 | Fischer Ag Georg | CERAMIC FILTER, PROCEDURE FOR ITS MANUFACTURE, AS WELL AS USE OF THE FILTER |
| US4708326A (en) * | 1986-12-15 | 1987-11-24 | Swiss Aluminium Ltd. | Vented pouring cup for molten metal casting |
| JP2004298950A (en) * | 2003-04-01 | 2004-10-28 | Asahi Tec Corp | Strainer for removing foreign matter |
| CN202762964U (en) * | 2012-07-25 | 2013-03-06 | 芜湖瑞鹄铸造有限公司 | Filter for full-mold casting |
-
2013
- 2013-05-04 CN CN201310161462.7A patent/CN103203431B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103203431A (en) | 2013-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204052857U (en) | A kind of aircraft cabin body vertical slitting gate system | |
| CN103203431B (en) | Filter for casting | |
| CN207840049U (en) | A kind of molten steel casting blank connector | |
| CN107774909A (en) | A kind of filter for casting | |
| CN202010766U (en) | Casting sand box and fixing device for casting sand box | |
| CN104043783A (en) | Small-caliber high-class valve body casting core | |
| CN203184590U (en) | Filter for casting | |
| CN201704632U (en) | Sand-cylinder-type temporary support for bridge construction | |
| CN105598374A (en) | Casting system design method for preventing root crack defect of inner gate of casting | |
| CN101920317A (en) | Rectangular casting blank crystallizer | |
| CN202621834U (en) | Gate stick for investment casting | |
| CN203184610U (en) | Steel ingot mold for large-scale and extremely thick slab | |
| WO2014095325A1 (en) | Temperature sensor for a continuous casting mould | |
| CN101528386B (en) | Extrusion die | |
| CN203356587U (en) | Casting furnace | |
| CN203292442U (en) | Connector for connecting molten steel in steelmaking continuous casting heat exchange | |
| CN208245750U (en) | A kind of end cap casting die | |
| CN105215285A (en) | A kind of vibration instrumentation expanding table top casting method | |
| CN209110113U (en) | A kind of double geat sprue positioning devices of casting | |
| CN205599839U (en) | A device for continuous cold forging taper sleeve | |
| CN205777471U (en) | A kind of building aluminum template system | |
| EP3658312B1 (en) | Deflection device for deflecting a melt flow in a bottom pouring group during block pouring, bottom pouring group, pressing tool and production method | |
| CN202591549U (en) | Pouring channel structure for casting die-casting hydraulic cylinder | |
| CN207435911U (en) | A kind of engineering detachable bar shaped sandbox | |
| CN220049946U (en) | Anti-deformation pouring system for large-size thin-wall aluminum/magnesium alloy cylinder casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |