CN107737879A - A kind of running gate system cast suitable for big module and preparation method thereof - Google Patents
A kind of running gate system cast suitable for big module and preparation method thereof Download PDFInfo
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- CN107737879A CN107737879A CN201711235821.3A CN201711235821A CN107737879A CN 107737879 A CN107737879 A CN 107737879A CN 201711235821 A CN201711235821 A CN 201711235821A CN 107737879 A CN107737879 A CN 107737879A
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- sprue
- casting
- cross
- gate
- ingate
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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
- B22C9/082—Sprues, pouring cups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a kind of suitable for running gate system of big module casting and preparation method thereof, belong to hot investment casting and technical field of material.Running gate system is closed, and suitable for length in below 60mm miniature parts, cross-sectional area ratio is ingate：Cross gate：Sprue=1：(1.1‑1.3)：(1.5‑2.0).Ingate is small cuboid, and one end is wedge shape, has funnel filtration.Cross gate has the function that flow-dividing control flow velocity；Cross gate pipe design is into step type, and variable cross-section at design 25 on sprue, bottom carries sprue base, prevents turbulent flow and splashing.Utilize the flow regime of present invention control aluminium alloy, aluminium alloy is set to be flow to faster velocity-stabilization in shell, realize and fill complete type, stop slag inclusion, filtering bubble, the function of effective feeding, improve the qualification rate of casting, shorten the manufacturing cycle, cost is reduced, there is higher economic benefit.
Description
Technical field：
The present invention relates to hot investment casting and technical field of material, specially a kind of cast suitable for the casting of big module
System and preparation method thereof.
Background technology：
Big module hot investment casting is a kind of high efficiency, the casting method of low cost.Traditional method is cast using small module
Make technology.Small module has the advantages such as injection system structure is simple, easily operates, but the shortcomings of number of packages is few, cost is high be present.Greatly
Module casting can cause loose, slag inclusion, owe the increase that the metallurgical imperfections such as casting, bubble form probability.
Running gate system is that molten metal is imported to the passage of casting mold, and it is by sprue cup, sprue, cross gate and ingate four
It is grouped into, simple casting typically only has sprue and ingate two parts, and heavy castings or the more complicated casting of structure are just set up
Sprue cup and cross gate.Running gate system is the major way of the metallurgical imperfection of the big module casting of control, rationally designs running gate system
It is the key for reducing metallurgical imperfection, is the key for the part qualification rate for improving big module casting.
The content of the invention
It is an object of the invention to provide a kind of multi-functional running gate system and preparation method thereof suitable for the casting of big module,
The running gate system has the effect such as pushing off the slag, feeding, degasification, current stabilization.Suitable for the big module casting process of all metal materials.
Technical scheme is as follows：
A kind of running gate system suitable for the casting of big module, including sprue cup, sprue, cross gate and ingate four
Point, the cross-sectional area ratio of the ingate, cross gate and sprue is 1: (1.1-1.3): (1.5-2.0)；The running gate system
Each several part design is as follows：
Sprue cup：At the top of sprue, to accept and import molten metal；
Sprue：For vertical channel, molten metal is imported into cross gate；
Cross gate：For horizontal channel, enter ingate to distribute molten metal；The cross gate is several, along directly pouring
Road is axially in three layers of arrangement；By the top of sprue first layer cross gate, second layer cross gate and third layer are followed successively by bottom
Cross gate；Each layer of cross gate is six, and around the radial arrangement of sprue, angle is 60 ° between adjacent cross gate, horizontal
The length of running channel is 200-400cm.
Ingate：The ingate is several, on cross gate, and is directly connected with casting mold die cavity, to guide
Molten metal enters die cavity.
The ingate is rectangular parallelepiped structure, and the connection end of ingate and casting is wedge structure, the wedge structure it is thick
End section length is 20-40cm, width 10-20cm；The taper end cross-sectional length of the wedge structure is 10-30cm, width 8-
10cm, there is funnel filtration.
The pipe design of the cross gate into a ladder, preferably two ladders, has the effect of pushing off the slag air filtration.
Variable section structure at 2-5 is designed on the sprue；The bottom of sprue is provided with circular sprue base, its diameter
For 1.2-1.4 times of sprue diameter of section, play a part of preventing turbulent flow and splash.
The preparation method of the multi-functional running gate system suitable for the casting of big module, comprises the following steps：
(1) various running channel wax-patterns are suppressed by required specification；
(2) sprue cup is combined on first layer cross gate, then combines second layer cross gate and third layer cross gate successively；
(3) after ingate mouth group being welded in into the relevant position of each cross gate, repaiied on sprue and weld variable cross-section at 2-5
Area, finally in sprue lower end, group is burn-on sprue base；
(4) after each running channel wax-pattern is combined into running gate system, after placing 12h, part wax-pattern group is welded on ingate；
(5) after the wax-pattern after combining places certain time, shell processed and cast are carried out.
The running gate system to be closed, suitable for length below 60mm miniature parts, suitable for all metal materials
Big module casting process.
Advantages of the present invention and beneficial effect are：
1st, the present invention controls the flow regime of aluminium alloy by running gate system, it is flow to type with faster velocity-stabilization
In shell, come realize its fill type completely, stop slag inclusion, filtering bubble, effective feeding function.
2. the present invention is the multi-functional running gate system suitable for the casting of big module, solve metallurgical in big module casting process
The problem of defect.
3. running gate system of the present invention, the whole component parts for assembly of a machine production of disposable whole component, improve the stability of casting quality and performance
And uniformity, there is long-range application prospect.
4. injection system structure of the present invention significantly shortens the manufacturing cycle, cost is reduced, there is higher economic benefit.
Brief description of the drawings：
Fig. 1 is injection system structure schematic diagram of the present invention.
Fig. 2 is the structure of ingate；Wherein (b) is the top view of (a).
Fig. 3 is the structure snd size of cross gate.
Fig. 4 is cross gate constitutional diagram.
Fig. 5 is sprue and sprue cup constitutional diagram.
Fig. 6 is the structure snd size of current stabilization nest.
Fig. 7 is running gate system preparation flow.
Fig. 8 is the structure and pattern of running gate system each several part wax pattern, wherein：(a) sprue cup and the combination of first layer cross gate
Figure；(b) sprue and cross gate constitutional diagram；(c) running gate system pattern after combining.
In figure：1- sprue cups；2- sprues；201- variable section structures；202- sprue bases；3- cross gates；4- ingates.
Embodiment：
The present invention is described in detail below in conjunction with accompanying drawing.
The present invention is the running gate system suitable for the casting of big module, and running gate system is closed, suitable for length in 60mm
Following miniature parts.As shown in figure 1, the running gate system includes sprue cup 1, sprue 2, cross gate 3 and ingate 4 four
Point, the cross-sectional area ratio of the ingate, cross gate and sprue is 1: (1.1-1.3): (1.5-2.0；The running gate system is each
Part design is as follows：
Sprue cup：At the top of sprue, to accept and import molten metal；
Sprue：For vertical channel, molten metal is imported into cross gate；Variable cross-section knot at 2-5 is designed on the sprue
Structure 201；The bottom of sprue is provided with circular sprue base 202,1.2-1.4 times of its a diameter of sprue diameter of section, rises
To the effect for preventing turbulent flow and splashing.
Cross gate：For horizontal channel, enter ingate to distribute molten metal；The cross gate is several, along directly pouring
Road is axially in three layers of arrangement；By the top of sprue first layer cross gate, second layer cross gate and third layer are followed successively by bottom
Cross gate；Each layer of cross gate is six, and around the radial arrangement of sprue, angle is 60 ° between adjacent cross gate, horizontal
The length of running channel is 200-400cm.The pipe design of the cross gate into a ladder, preferably two ladders, has pushing off the slag filter
Gas acts on.
Ingate：The ingate is several, on cross gate, and is directly connected with casting mold die cavity, to guide
Molten metal enters die cavity.The ingate is rectangular parallelepiped structure, and the connection end of ingate and casting is wedge structure, wedge shape knot
The butt end cross-sectional length of structure is 20-40cm, width 10-20cm；The taper end cross-sectional length of the wedge structure is 10-30cm, width
Spend for 8-10cm, there is funnel filtration, as shown in Fig. 2 (a)-(b) and table 1, there is funnel filtration.
The ingate wedge structure size of table 1
| a1 | 20-40 |
| b1 | 10-30 |
| L1 | 10-20 |
| L2 | 8-10 |
| Quantity | 50-100 |
The preparation process of running gate system of the present invention is：
According to design shape and size, design and make mould.Running channel wax-pattern is suppressed in a mold, prepares ingate, horizontal stroke
Running channel, sprue and sprue cup, and combine them according to the shape in Fig. 1, after placing 12h, group is burn-on part wax
Mould, then shell processed.Finally, aluminium alloy is poured into shell under specific casting technique.
Embodiment 1：
In the present embodiment, the structure and each several part size of running gate system as shown in Fig. 1-6 and table 2, be shown in by runner system size
Table 2.Wherein：
Ingate is small cuboid, and one end that ingate is connected with casting is wedge shape, and shape, size are shown in Fig. 2.Cross gate
Pipe design is stepped into two-stage, and each cross gate is radial to be distributed around sprue, and angle is 60 ° between contiguous branch, horizontal to pour
Road shape, size are shown in Fig. 3-4.
Variable cross-section at 2 is designed on sprue, sprue bottom is provided with the circular sprue base for current stabilization, shape, size
See Fig. 5-6.
The embodiment 1-3 running gate system sizes of table 2
| a1 | b1 | L1 | L2 | L3 | Quantity | |
| Embodiment 1 | 40 | 30 | 20 | 10 | 400 | 72 |
| Embodiment 2 | 20 | 10 | 10 | 8 | 280 | 54 |
| Embodiment 3 | 30 | 20 | 15 | 8 | 350 | 54 |
The preparation flow of the present embodiment running gate system is as shown in Figure 7.First, various running channel wax-patterns are suppressed, then by Fig. 2-6
Size is examined, is combined by Fig. 1：(1) sprue cup is combined on first layer cross gate, as shown in Fig. 8 (a).(2) on sprue
Second layer cross gate and three layers of cross gate are combined successively, as shown in Fig. 8 (b).(3) ingate group is welded in the corresponding positions of cross gate
Put, repair and weld variable cross-section area at 2, group is burn-on sprue base (current stabilization nest) in lower end, as shown in Fig. 8 (c).After cooling down 16h, by zero
Part wax-pattern group is welded on ingate.After wax-pattern after combination places certain time, shell processed and cast are carried out.Vanes after cast
Inspection external form is complete, and the metallurgical imperfection such as loose, slag inclusion, bubble is in control range, because the blade that metallurgical imperfection causes to scrap is
9%.
Embodiment 2：
In the present embodiment, running gate system preparation flow is as shown in Figure 7.Running channel size is shown in Table 2.First, various running channels are suppressed
Wax-pattern, size then is examined by Fig. 2-6, is combined by Fig. 1：(1) sprue cup is combined on first layer cross gate.(2) directly pouring
Second layer cross gate and third layer cross gate are combined on road successively.(2) ingate group is welded in the relevant position of cross gate, repaiies weldering
Go out variable cross-section area at 2, group is burn-on sprue base (current stabilization nest) in lower end.12h is cooled down, part wax-pattern group is welded on ingate.
After wax-pattern after combination places certain time, shell processed and cast are carried out.Vanes after cast examine complete, the loose, folder that fills type
The metallurgical imperfections such as slag, bubble are in control range, because the blade that metallurgical imperfection causes to scrap is 13%.
Embodiment 3：
In the present embodiment, running gate system preparation flow is as shown in Figure 7.Running channel size is shown in Table 2.First, various running channels are suppressed
Wax-pattern, size then is examined by Fig. 2-6, is combined by Fig. 1：(1) sprue cup is combined on first layer cross gate.(2) directly pouring
Second layer cross gate and third layer cross gate are combined on road successively.(2) ingate group is welded on the relevant position of cross gate, repaiied
Variable cross-section area at 2 is welded, group is burn-on sprue base (current stabilization nest) in lower end.12h is cooled down, part wax-pattern group is welded in ingate
On.After wax-pattern after combination places certain time, shell processed and cast are carried out.Vanes after cast examine that to fill type complete, loose,
The metallurgical imperfections such as slag inclusion, bubble are in control range, because the blade that metallurgical imperfection causes to scrap is 7%.
Embodiment 1-3 results show that the present invention is applied to multi-functional running gate system of big module casting and preparation method thereof：
Mould is designed, and is made.Suppress running channel wax-pattern in a mold, prepare ingate, cross gate, sprue and sprue cup, and by it
Combine, after placing certain time, group is burn-on part wax-pattern, then shell processed.Finally, will under specific casting technique
Aluminium alloy is poured into shell.The whole component parts for assembly of a machine production casting of disposable whole component of the present invention, not only increases casting quality and performance
Stability and uniformity, and significantly reduce the manufacturing cycle, reduce cost, there is long-range application prospect and higher
Economic benefit.Suitable for the big module casting process of all metal materials.
Claims (9)
1. a kind of running gate system suitable for the casting of big module, including sprue cup, sprue, cross gate and the part of ingate four,
It is characterized in that：The cross-sectional area ratio of the ingate, cross gate and sprue is 1：(1.1-1.3)：(1.5-2.0；This is poured
In injection system：
Sprue cup：At the top of sprue, to accept and import molten metal；
Sprue：For vertical channel, molten metal is imported into cross gate；
Cross gate：For horizontal channel, enter ingate to distribute molten metal；The cross gate is several, along sprue axle
To in three layers of arrangement；First layer cross gate, second layer cross gate are followed successively by bottom and third layer is horizontal pours by the top of sprue
Road；
Ingate：The ingate is several, on cross gate, and is directly connected with casting mold die cavity, to guide metal
Liquid enters die cavity.
2. the running gate system according to claim 1 suitable for the casting of big module, it is characterised in that：Each layer of cross gate
For six, around the radial arrangement of sprue, angle is 60 ° between adjacent cross gate, and the length of cross gate is 200-
400cm。
3. the running gate system according to claim 1 suitable for the casting of big module, it is characterised in that：The ingate is length
The connection end of cube structure, ingate and casting is wedge structure, and the butt end cross-sectional length of the wedge structure is 20-40cm, width
Spend for 10-20cm；The taper end cross-sectional length of the wedge structure is 10-30cm, width 8-10cm, has funnel filtration.
4. the running gate system according to claim 1 suitable for the casting of big module, it is characterised in that：The pipe of the cross gate
Road designs into a ladder, has the effect of pushing off the slag air filtration.
5. the running gate system according to claim 1 suitable for the casting of big module, it is characterised in that：Set on the sprue
Count variable section structure at 2-5；The bottom of sprue is provided with circular sprue base, the 1.2- of its a diameter of sprue diameter of section
1.4 times, play a part of preventing turbulent flow and splash.
6. the preparation method of the running gate system according to claim 1 suitable for the casting of big module, it is characterised in that：The party
Method comprises the following steps：
(1) various running channel wax-patterns are suppressed by required specification；
(2) sprue cup is combined on first layer cross gate, then combines second layer cross gate and third layer cross gate successively；
(3) after ingate mouth group being welded in into the relevant position of each cross gate, repaiied on sprue and weld variable cross-section area at 2-5, most
In sprue lower end, group is burn-on sprue base afterwards；
(4) after each running channel wax-pattern is combined into running gate system, part wax-pattern group is welded on ingate；
(5) after the wax-pattern after combining is placed, shell processed and cast are carried out.
7. the preparation method of the running gate system according to claim 6 suitable for the casting of big module, it is characterised in that：Cast
After system in combination, after placing 12h, then weldering part wax pattern is organized.
8. the preparation method of the running gate system according to claim 6 suitable for the casting of big module, it is characterised in that：This is poured
Injection system to be closed, suitable for length below 60mm miniature parts.
9. the preparation method of the running gate system according to claim 6 suitable for the casting of big module, it is characterised in that：This is poured
Injection system is applied to the big module casting process of all metal materials.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344769A (en) * | 2018-03-23 | 2018-07-31 | 中国航发哈尔滨东安发动机有限公司 | A kind of device measuring the founding materials coefficient of heat transfer |
| CN110153377A (en) * | 2019-06-19 | 2019-08-23 | 中国科学院金属研究所 | It is a kind of to control big module group type shell and synchronize the running gate system and application for filling type |
| CN110238347A (en) * | 2019-06-24 | 2019-09-17 | 天津忠旺铝业有限公司 | A kind of lost foam casting camshaft running gate system |
| CN111531130A (en) * | 2020-05-29 | 2020-08-14 | 中国航发南方工业有限公司 | Dynamic equilibrium pouring system of double-layer blade thin-wall guider |
| CN112317692A (en) * | 2020-11-03 | 2021-02-05 | 西北工业大学 | Pouring system for casting alloy standard sample and manufacturing method of formwork |
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| CN108344769A (en) * | 2018-03-23 | 2018-07-31 | 中国航发哈尔滨东安发动机有限公司 | A kind of device measuring the founding materials coefficient of heat transfer |
| CN110153377A (en) * | 2019-06-19 | 2019-08-23 | 中国科学院金属研究所 | It is a kind of to control big module group type shell and synchronize the running gate system and application for filling type |
| CN110238347A (en) * | 2019-06-24 | 2019-09-17 | 天津忠旺铝业有限公司 | A kind of lost foam casting camshaft running gate system |
| CN110238347B (en) * | 2019-06-24 | 2024-04-09 | 天津忠旺铝业有限公司 | Casting system for lost foam casting cam shaft |
| CN111531130A (en) * | 2020-05-29 | 2020-08-14 | 中国航发南方工业有限公司 | Dynamic equilibrium pouring system of double-layer blade thin-wall guider |
| CN111531130B (en) * | 2020-05-29 | 2021-09-28 | 中国航发南方工业有限公司 | Dynamic equilibrium pouring system of double-layer blade thin-wall guider |
| CN112317692A (en) * | 2020-11-03 | 2021-02-05 | 西北工业大学 | Pouring system for casting alloy standard sample and manufacturing method of formwork |
| CN112317692B (en) * | 2020-11-03 | 2021-09-07 | 西北工业大学 | Pouring system for casting alloy standard sample and manufacturing method of formwork |
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