CN206492904U - New spheroidal graphite cast iron system - Google Patents
New spheroidal graphite cast iron system Download PDFInfo
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- CN206492904U CN206492904U CN201720155420.6U CN201720155420U CN206492904U CN 206492904 U CN206492904 U CN 206492904U CN 201720155420 U CN201720155420 U CN 201720155420U CN 206492904 U CN206492904 U CN 206492904U
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- cross
- sectional area
- sprue
- ingate
- spheroidal graphite
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Abstract
The utility model discloses a kind of new spheroidal graphite cast iron system, including sprue, the sprue is provided with the sprue cup for casting of molten metal, the left and right sides of the sprue is connected with cross gate, there are multiple ingates on each cross gate, the ingate is connected with casting die cavity and guides molten metal to casting die cavity, the cross section of the cross-sectional area sum ＞ sprues of the cross-sectional area sum ＞ cross gates of the ingate, the ratio between the cross-sectional area sum of the ingate and the cross-sectional area of sprue are 1.85 2.15, the cross-sectional area sum of the cross gate and the cross-sectional area of sprue are 1.65 1.45.By the above-mentioned means, the new spheroidal graphite cast iron system of the utility model, small to casting die cavity impulsive force, greatly reduce sand holes defect, reduce iron liquid gravitional force, splendid slag effect is kept away while providing, sand holes and slag blister defect are reduced, inside and the surface quality of nodular iron casting is drastically increased.
Description
Technical field
The utility model is related to cast field, more particularly to a kind of new spheroidal graphite cast iron system.
Background technology
Running gate system is the passage that guiding molten metal enters die cavity in sand mold.Successful pouring technology depends on metal in itself
Property, the structure of the property of casting mold and running gate system.Therefore the structure of running gate system is particularly significant for the quality of casting.It is good
Running gate system need（1）Guiding molten metal is steady, continuously fill type, it is to avoid turbulent flow and cause entrainment air, produce metal oxygen
Compound is mingled with and washed away die cavity；（2）The direction flowed in cavity filling process and speed can be controlled, it is ensured that casting is clear-cut, complete
It is whole；（3）Die cavity is full of at the right time, it is to avoid form the defects such as burning into sand, cold shut, elephant skin；（4）With pushing off the slag, overflow slag energy
Power, purifying molten metal；（5）Injection system structure simply, reliably should be reduced molten metal consumption, be convenient to clean.
General casting moulding system is made up of following 4 part：Pouring basin, sprue, cross gate, ingate.
Running gate system is segmented into unchoked running system and positive-pressure gating system etc. according to each several part section area ratio.
Unchoked running system refers to sprue sectional area the is less than cross gate sectional area and sum less than ingate sectional area, and closes
Formula running gate system is in contrast.The position for entering casting mold according to ingate can be divided into direct casting, middle casting and rising pouring etc..According to whole
The arrangement of individual running gate system can be divided into symmetrical balance-type and asymmetrical type.Due to spheroidal graphite cast-iron mushy freezing and contain Mg member
Plain the features such as, magnesium iron easily forms the mass defects such as sand holes, cold shut and slag blister.
Shown based on the substantial amounts of production practices of production line and theoretical research, ingate can effectively keep away slag gear using rising pouring
Slag, the unchoked running system of balanced, symmetrical can effectively reduce pressure of the molten metal in die cavity, prevent liquid metal spraying and
Avoid molten metal high-speed punching brush-type chamber formation sand holes.But inappropriate running gate system each several part section area ratio is easily caused and filled
Type is slow, and forms cold shut.Therefore suitable running gate system each several part section area ratio is designed, to reducing nodular iron casting sand holes
The defects such as slag blister, it is highly important to improve casting casting quality.
The content of the invention
The utility model is mainly solving the technical problems that provide a kind of new spheroidal graphite cast iron system, to casting die cavity
Impulsive force is small, greatly reduces sand holes defect, reduces iron liquid gravitional force, at the same provide it is splendid keep away slag effect, reduce sand holes
With slag blister defect, inside and the surface quality of nodular iron casting are drastically increased.
In order to solve the above technical problems, the technical scheme that the utility model is used is：A kind of new spheroidal graphite casting is provided
Iron running gate system, including sprue, the sprue are provided with the sprue cup for casting of molten metal, the left and right of the sprue
Both sides are connected with cross gate, have multiple ingates on each cross gate, the ingate is connected simultaneously with casting die cavity
Molten metal is guided to casting die cavity, the cross-sectional area sum ＞ sprues of the cross-sectional area sum ＞ cross gates of the ingate
Cross-sectional area, the ratio between the cross-sectional area sum of the ingate and the cross-sectional area of sprue are 1.85-2.15, described horizontal to pour
The ratio between the cross-sectional area sum in road and the cross-sectional area of sprue are 1.65-1.45.
In one preferred embodiment of the utility model, the cross-sectional area sum of the ingate：The cross section of cross gate
Product sum：Cross-sectional area=2.05 of sprue：1.55:1.
In one preferred embodiment of the utility model, the cross gate is provided with 3 ingates, described cross gate one end
Provided with 1 ingate, the other end is provided with 2 ingates, and two cross gates are centrosymmetric setting, and the ingate is from casting
In the bottom injection casting die cavity of part die cavity.
In one preferred embodiment of the utility model, the casting die cavity is identical with the quantity of ingate.
In one preferred embodiment of the utility model, the sprue is up-small and down-big cylindrical straight running channel.
In one preferred embodiment of the utility model, the cross gate is strip ingate.
In one preferred embodiment of the utility model, the ingate is stepped ingate.
The beneficial effects of the utility model are：The new spheroidal graphite cast iron system of the utility model, impacts to casting die cavity
Power is small, greatly reduces sand holes defect, reduces iron liquid gravitional force, at the same provide it is splendid keep away slag effect, reduce sand holes and slag
Eye defect, drastically increases inside and the surface quality of nodular iron casting.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Other accompanying drawings are obtained, wherein：
Fig. 1 is the structural representation of the new preferred embodiment of spheroidal graphite cast iron system one of the utility model；
Fig. 2 Fig. 1 is the top view of shown new spheroidal graphite cast iron system；
Fig. 3 is the operation process simulation schematic diagram of the new spheroidal graphite cast iron system shown in Fig. 1；
The mark of each part is as follows in accompanying drawing：1st, sprue, 2, sprue cup, 3, cross gate, 4, ingate, 5, casting type
Chamber, 6, the cross section of ingate, 7, the cross section of cross gate, 8, the cross section of sprue.
Embodiment
The technical scheme in the utility model embodiment will be clearly and completely described below, it is clear that described
Embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
Fig. 1 is referred to Fig. 2, a kind of new spheroidal graphite cast iron system, including sprue 1, sprue 1, which is provided with, to be used for
The sprue cup 2 of casting of molten metal, the left and right sides of sprue 1 is connected with to have in multiple on cross gate 3, each cross gate 3 and poured
Road 4, ingate 4 is connected with casting die cavity 5 and guides molten metal to casting die cavity 5, the cross-sectional area sum ＞ of ingate
The cross-sectional area of the cross-sectional area sum ＞ sprues of cross gate, the cross-sectional area sum of ingate and the cross-sectional area of sprue
The ratio between be 1.85-2.15, the ratio between the cross-sectional area sum of cross gate and the cross-sectional area of sprue be 1.65-1.45.
In addition, the cross-sectional area sum of ingate：The cross-sectional area sum of cross gate：Cross-sectional area=2.05 of sprue：
1.55:1.Sectional area is unit 1, and running gate system has two cross gates 3 in left and right, the sectional area of cross gate 3 and be the section of sprue 1
Long-pending 1.55 times, running gate system has six ingates 4, the sectional area of ingate 4 and be 2.05 times of the sectional area of sprue 1, should
Ratio can reduce the defects such as nodular iron casting sand holes slag blister, improve casting casting quality.
In addition, cross gate 3 is provided with 3 ingates 4, the one end of cross gate 3 is provided with 2 provided with 1 ingate 4, the other end
Ingate 4, two cross gates 3 are centrosymmetric setting.Ingate 4 is out of, casting die cavity 5 bottom injection casting die cavity 5.Casting
Part die cavity 5 is identical with the quantity of ingate 4.
In addition, sprue 1 is up-small and down-big cylindrical straight running channel.Cross gate 3 is strip ingate.Ingate 4 is rank
Ladder type ingate.
The new spheroidal graphite cast iron system of the utility model is reduced turbulent flow and protected using symmetrical and balance running gate system arrangement
Demonstrate,prove casting uniformity；Running gate system each several part sectional area and it is designed to specific ratio, forms open no pressure running gate system；
Running gate system uses bottom filling ingate.
Fig. 3 is the simulation of application example, chooses the hydraulic valve class product of an actual production, replaces six casting 4 in Fig. 1
Position, is simulated using casting speciality MAGMA simulation softwards.Type initial stage is filled as seen from Figure 2（20% to 50% is full of shape in Fig. 2
State）, the speed that ingate 4 enters casting casting mold is low, and it is uniform that running gate system each several part fills type, casting die cavity liquid metal filling degree
Almost consistent, cross gate 3 does not have turbulent situation and the liquid level of cross gate 3 is consistently higher than ingate and is conducive to keeping away slag pushing off the slag.Fill type
Middle and later periods（70% to 95% full state in Fig. 3）, cross gate 3 is full of into flat ingate 4 all the time to be played good pushing off the slag and keeps away
Slag effect, the liquid metal filling degree of casting die cavity 5 is almost consistent, and liquid level synchronously rises the uniformity that ensure that each pattern number casting,
Speed that ingate 4 enters casting casting mold is low, impulsive force is small avoids sand holes, has reached and has preferably uniformly filled type effect.Simultaneously
Demonstrate the applicability of the very good industry manufacture casting of this new spheroidal graphite cast iron system.
Prior art is different from, the new spheroidal graphite cast iron system of the utility model is small to casting die cavity impulsive force, greatly
Reduce sand holes defect, reduce iron liquid gravitional force, at the same provide it is splendid keep away slag effect, reduce sand holes and slag blister defect, pole
The earth improves inside and the surface quality of nodular iron casting.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model description, or directly or indirectly it is used in other phases
The technical field of pass, is similarly included in scope of patent protection of the present utility model.
Claims (7)
1. a kind of new spheroidal graphite cast iron system, it is characterised in that including sprue, the sprue, which is provided with, to be used to pour into a mould
The sprue cup of molten metal, the left and right sides of the sprue is connected with cross gate, has on each cross gate in multiple and pours
Road, the ingate is connected with casting die cavity and guides molten metal to casting die cavity, the cross-sectional area of the ingate it
With the cross-sectional area of the cross-sectional area sum ＞ sprues of ＞ cross gates, the cross-sectional area sum of the ingate and sprue
The ratio between cross-sectional area is 1.85-2.15, and the cross-sectional area sum of the cross gate and the cross-sectional area of sprue are 1.65-
1.45。
2. new spheroidal graphite cast iron system according to claim 1, it is characterised in that the cross-sectional area of the ingate
Sum：The cross-sectional area sum of cross gate：Cross-sectional area=2.05 of sprue：1.55:1.
3. new spheroidal graphite cast iron system according to claim 2, it is characterised in that the cross gate is provided with 3
Ingate, described cross gate one end is in center pair provided with 2 ingates, two cross gates provided with 1 ingate, the other end
Claim to set, the ingate is out of, casting die cavity bottom injection casting die cavity.
4. new spheroidal graphite cast iron system according to claim 3, it is characterised in that the casting die cavity and ingate
Quantity it is identical.
5. according to any described new spheroidal graphite cast iron systems of claim 1-4, it is characterised in that the sprue is upper
Small lower big cylindrical straight running channel.
6. new spheroidal graphite cast iron system according to claim 5, it is characterised in that the cross gate is to be poured in strip
Road.
7. new spheroidal graphite cast iron system according to claim 6, it is characterised in that the ingate is stepped interior
Running channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720155420.6U CN206492904U (en) | 2017-02-21 | 2017-02-21 | New spheroidal graphite cast iron system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720155420.6U CN206492904U (en) | 2017-02-21 | 2017-02-21 | New spheroidal graphite cast iron system |
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| Publication Number | Publication Date |
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| CN206492904U true CN206492904U (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720155420.6U Active CN206492904U (en) | 2017-02-21 | 2017-02-21 | New spheroidal graphite cast iron system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825421A (en) * | 2017-02-21 | 2017-06-13 | 江苏恒立液压股份有限公司 | New spheroidal graphite cast iron system |
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2017
- 2017-02-21 CN CN201720155420.6U patent/CN206492904U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825421A (en) * | 2017-02-21 | 2017-06-13 | 江苏恒立液压股份有限公司 | New spheroidal graphite cast iron system |
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