CN107774909A - A kind of filter for casting - Google Patents
A kind of filter for casting Download PDFInfo
- Publication number
- CN107774909A CN107774909A CN201610714283.5A CN201610714283A CN107774909A CN 107774909 A CN107774909 A CN 107774909A CN 201610714283 A CN201610714283 A CN 201610714283A CN 107774909 A CN107774909 A CN 107774909A
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- China
- Prior art keywords
- millimeters
- cuboid
- round platform
- hole
- degree
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/086—Filters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
Abstract
Large-scale ductile iron part low flow velocity, the filter for casting of Stable Filling purpose can be realized in the case where meeting the requirement of iron liquid degree of purity the invention discloses a kind of, it includes body（1）, located at body（1）On multiple through holes（2）, body（1）For the cuboid of rectangular-shape, at least 1736 through holes are distributed with cuboid（2）, the height span of cuboid is closed interval [20 millimeters, 30 millimeters], through hole（2）Axial direction be cuboid short transverse；Through hole（2）For round platform hole, the angle of plane where the bus of round platform hole and the big end of round platform hole（3）Span be closed interval [87 degree, 88 degree], the small end of round platform hole is iron liquid import, and the big end of round platform hole is iron liquid outlet；Some through holes（2）Along cuboid width in column, each row are sequentially distributed along the length direction of cuboid, and the distance of center circle between the big end of each adjacent round platform hole is the diameter at the big end of 1.5 times of round platform holes, and the span of the diameter is closed interval [4 millimeters, 7 millimeters].
Description
Technical field
The present invention relates to casting technology field, is especially a kind of filter for casting.
Background technology
In the case where meeting the requirement of iron liquid degree of purity, large-scale ductile iron part requires low flow velocity, Stable Filling, such as the application
People devises one and is used for the 400MN that casts（Million Ns）The casting system of heavy aviation stamp forging hydraulic press sphere depression bar, the casting system
System includes sprue, the first cross gate, filter for casting, the second cross gate, the annular ingate sequentially connected, concrete structure
As shown in figure 1,400MN heavy type aviation stamp forging hydraulic press spheres depression bar is a large-scale ductile iron part, it is desirable to 1310 DEG C of left sides of temperature
Right, weight is up to 14 tons of QT700-2A（The spheroidal graphite cast-iron trade mark）Iron liquid filled type within 2 minutes or so time and terminate, due to spheroidal graphite
Cast iron viscosity is big, so mobility is poor, it is necessary to take into full account between flow velocity, flow and strainability in cavity filling process
Relation, otherwise, because spheroidal graphite cast-iron is big to filter for casting active force, easily causes through hole and crush, in addition casting it is used
Filter ftractures or fracture, and then causes to produce secondary slag into casting mold, and therefore, the design importance of filter for casting is dashed forward
Go out, and prior art does not disclose related art scheme or enlightened for solving the above problems.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of can realize big in the case where meeting the requirement of iron liquid degree of purity
Type nodular iron casting low flow velocity, the filter for casting of Stable Filling purpose, have and prevent the slag in iron liquid from entering in casting mold, with
And iron liquid flow velocity can be controlled on the premise of requirement flow is reached, contain turbulent flow phenomenon, and then ensure large-scale ductile iron part
Casting quality the advantages of.
The technical scheme is that filter for casting of the present invention, it includes body, multiple identical on body
The through hole of size, body are cuboid, and at least 1736 through holes are distributed with cuboid, and the height span of cuboid is
Closed interval [20 millimeters, 30 millimeters], the axial direction of through hole are the short transverse of cuboid；Through hole is round platform hole, the bus of round platform hole
Span with the angle of plane where the big end of round platform hole is closed interval [87 degree, 88 degree], and the small end of round platform hole is iron liquid
Import, the big end of round platform hole export for iron liquid；Width of some through holes along cuboid in column, respectively arranges the length along cuboid
Direction is sequentially distributed, and the distance of center circle between the big end of each adjacent round platform hole is the diameter at the big end of 1.5 times of round platform holes, the diameter
Span is closed interval [4 millimeters, 7 millimeters].
The length of cuboid be 690 millimeters, width be distributed with the range of 166 millimeters 1736 hold greatly a diameter of 4
The round platform hole of millimeter, the height of cuboid is 23 millimeters, and angle is 88 degree.
The length of cuboid be 690 millimeters, width be distributed with the range of 166 millimeters 1736 hold greatly a diameter of 5
The round platform hole of millimeter, the height of cuboid is 25 millimeters, and angle is 87.5 degree.
The length of cuboid be 690 millimeters, width be distributed with the range of 166 millimeters 1736 hold greatly a diameter of 7
The round platform hole of millimeter, the height of cuboid is 27 millimeters, and angle is 87 degree.
After said structure, the present invention compared with prior art, has advantages below：The non-existing technology of said structure or
Normal experiment means can obtain, and the applicant obtains said structure on the basis of long-term practice and further investigation, i.e.,
Spacing between the quantity of through hole, cuboid height, shape of through holes, arrays of openings, the big end of through hole, the big end of through hole are considered
Diameter each factor determines said structure, takes into full account the relation between flow velocity, flow and strainability, is looked between three
To a balance, avoid in cavity filling process, spheroidal graphite cast-iron causes through hole to crush to the active force of filter for casting, filter
Cracking or the phenomenon of fracture occur, and said structure is realized large-scale ductile iron in the case where meeting the requirement of iron liquid degree of purity
Part low flow velocity, Stable Filling purpose, have and prevent the slag in iron liquid from entering in casting mold, and, requirement flow can reached
Under the premise of control iron liquid flow velocity, contain turbulent flow phenomenon, and then ensure large-scale ductile iron part casting quality the advantages of.
Brief description of the drawings
Fig. 1 is the structural representation for the casting system for 400MN heavy type aviation stamp forging hydraulic press sphere depression bars of casting.
Fig. 2 is the structure enlargement diagram of filter for casting of the present invention（Because structure is longer, thus cutd open among section come
Represent）.
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, ring
Shape ingate.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
The applicant devises a casting system for 400MN heavy type aviation stamp forging hydraulic press sphere depression bars of casting,
The casting system include sequentially connect sprue 4, the first cross gate 5, filter for casting, the second cross gate 6, annular in pour
Road 7, concrete structure is as shown in Figure 1.
Filter for casting of the present invention, it includes the through hole 2 of body 1, multiple formed objects on body 1, body 1
For the cuboid of rectangular-shape, at least 1736 through holes 2 are distributed with cuboid, the height span of cuboid is closed zone
Between [20 millimeters, 30 millimeters], the axial direction of through hole 2 is the short transverse of cuboid；Through hole 2 is round platform hole, the bus of round platform hole with
The span of the angle 3 of plane is closed interval [87 degree, 88 degree] where the big end of round platform hole, and the small end of round platform hole enters for iron liquid
Mouthful, the big end of round platform hole exports for iron liquid；Width of some through holes 2 along cuboid in column, the big end of each through hole in row
The center of circle is located on the straight line extended in the width direction, and each row are sequentially distributed along the length direction of cuboid, each adjacent round platform
Distance of center circle between the big end in hole is the diameter at the big end of 1.5 times of round platform holes, the span of the diameter for closed interval [4 millimeters,
7 millimeters].
Embodiment 1, the length of cuboid be 690 millimeters, width be that 1736 are distributed with the range of 166 millimeters to hold greatly
A diameter of 4 millimeters of round platform hole, the height of cuboid is 23 millimeters, and angle 3 is 88 degree.
Embodiment 2, the length of cuboid be 690 millimeters, width be that 1736 are distributed with the range of 166 millimeters to hold greatly
A diameter of 5 millimeters of round platform hole, the height of cuboid is 25 millimeters, and angle 3 is 87.5 degree.
Embodiment 3, the length of cuboid be 690 millimeters, width be that 1736 are distributed with the range of 166 millimeters to hold greatly
A diameter of 7 millimeters of round platform hole, the height of cuboid is 27 millimeters, and angle 3 is 87 degree.
Embodiment 4, the length of cuboid be 695 millimeters, width be that 1750 are distributed with the range of 170 millimeters to hold greatly
A diameter of 4 millimeters of round platform hole, the height of cuboid is 23 millimeters, and angle 3 is 88 degree.
Embodiment 5, the length of cuboid be 700 millimeters, width be that 1740 are distributed with the range of 176 millimeters to hold greatly
A diameter of 5 millimeters of round platform hole, the height of cuboid is 25 millimeters, and angle 3 is 87.5 degree.
Embodiment 6, the length of cuboid be 705 millimeters, width be that 1736 are distributed with the range of 178 millimeters to hold greatly
A diameter of 7 millimeters of round platform hole, the height of cuboid is 27 millimeters, and angle 3 is 87 degree.
Claims (4)
1. a kind of filter for casting, it is characterised in that it includes body（1）, located at body（1）On multiple formed objects
Through hole（2）, body（1）For cuboid, at least 1736 through holes are distributed with cuboid（2）, the height value model of cuboid
Enclose for closed interval [20 millimeters, 30 millimeters], through hole（2）Axial direction be cuboid short transverse；Through hole（2）For round platform hole, circle
The angle of plane where the bus in platform hole and the big end of round platform hole（3）Span be closed interval [87 degree, 88 degree], round platform hole
Small end be iron liquid import, the big end of round platform hole is iron liquid outlet；Some through holes（2）Along the width of cuboid
In column, each row are sequentially distributed along the length direction of cuboid, and the distance of center circle between the big end of each adjacent round platform hole is in direction
The diameter at the big end of 1.5 times of round platform holes, the span of the diameter is closed interval [4 millimeters, 7 millimeters].
2. filter for casting according to claim 1, it is characterised in that in the length of cuboid be 690 millimeters, width
For 1736 a diameter of 4 millimeters of round platform holes held greatly are distributed with the range of 166 millimeters, the height of cuboid is 23 millimeters, folder
Angle（3）For 88 degree.
3. filter for casting according to claim 1, it is characterised in that in the length of cuboid be 690 millimeters, width
For 1736 a diameter of 5 millimeters of round platform holes held greatly are distributed with the range of 166 millimeters, the height of cuboid is 25 millimeters, folder
Angle（3）For 87.5 degree.
4. filter for casting according to claim 1, it is characterised in that in the length of cuboid be 690 millimeters, width
For 1736 a diameter of 7 millimeters of round platform holes held greatly are distributed with the range of 166 millimeters, the height of cuboid is 27 millimeters, folder
Angle（3）For 87 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610714283.5A CN107774909A (en) | 2016-08-25 | 2016-08-25 | A kind of filter for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610714283.5A CN107774909A (en) | 2016-08-25 | 2016-08-25 | A kind of filter for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107774909A true CN107774909A (en) | 2018-03-09 |
Family
ID=61388119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610714283.5A Pending CN107774909A (en) | 2016-08-25 | 2016-08-25 | A kind of filter for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107774909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332604A (en) * | 2018-11-02 | 2019-02-15 | 四川共享铸造有限公司 | The method for solving cylindric nodular iron casting shrinkage porosite |
-
2016
- 2016-08-25 CN CN201610714283.5A patent/CN107774909A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332604A (en) * | 2018-11-02 | 2019-02-15 | 四川共享铸造有限公司 | The method for solving cylindric nodular iron casting shrinkage porosite |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180309 |