CN106513631A - Runner structure of differential-pressure casting formation - Google Patents
Runner structure of differential-pressure casting formation Download PDFInfo
- Publication number
- CN106513631A CN106513631A CN201611022476.0A CN201611022476A CN106513631A CN 106513631 A CN106513631 A CN 106513631A CN 201611022476 A CN201611022476 A CN 201611022476A CN 106513631 A CN106513631 A CN 106513631A
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- Prior art keywords
- runner
- pressure casting
- runner structure
- cross
- casting
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a runner structure of differential-pressure casting formation. The runner structure solves the technical problem that molten aluminum alloy rising rapidly through a liquid rising pipe cannot be stably distributed to all sprues through bifurcate horizontal runners. The runner structure comprises a guide pipe (1), the guide pipe (1) is connected to horizontal runners (3), the outer ends of the horizontal runners (3) are connected to an annular horizontal runner (2), and the annular horizontal runner (2) is connected to spures (4). Compared with castings produced through the gravity casting technology method or the low-pressure casting technology method, castings produced through the runner structure has the advantages that the strength and the tensile strength can be improved by 30%, the ductility can be improved by 60% and the internal microstructure defect can be controlled to be at a low level from the aspect of the mechanical property.
Description
Technical field
The present invention relates to a kind of counter-pressure casting machine, more particularly to a kind of pouring gate structure of counter-pressure casting molding.
Background technology
During Traditional differential pressure casting, typically using dichotomous cross gate, the defect one of this pouring gate structure is：
Al alloys andMg alloys liquid in pressure measuring cylinder, when effect is under pressure, rapidly can rise to through stalk that bifurcated single channel is horizontal to be poured
In road（Enclosed type）, it is due to each bifurcated section of cross gate, micro unequal, and during the flowing of Al alloys andMg alloys liquid, branch type intracavity
Counteracting force of the pressure to which, Al alloys andMg alloys liquid are directly poured by sprue and gap not through the smooth transition time period
Road, into casting mold.In the process, Al alloys andMg alloys liquid is also easy to produce fluctuation, i.e.,：Al alloys andMg alloys fluid head is unstable, gas
Entrain in Al alloys andMg alloys liquid, oxidation can be produced, the cast-internal after moulding by casting occurs pore, pin hole, oxidation folder
The casting flaw such as slag, loose, has influence on cast-internal microstructure and mechanical property.Defect two is：Due between bifurcated cross gate
The fine difference in section, influences whether that Al alloys andMg alloys liquid rises to the temperature of gap running channel, causes foundry goods forming process aluminum, magnesium
Aluminium alloy temperature field is uneven, and forms loose, shrinkage cavity casting flaw main cause, equally influences whether the casting after molding
Part mechanical property uniformity.The Al alloys andMg alloys liquid that dichotomous cross gate finally can not rapidly rise Jing stalks, smoothly divides
Each sprue is fitted on, is the basic reason for causing above-mentioned casting flaw.
The content of the invention
The invention provides a kind of pouring gate structure of counter-pressure casting molding, solving dichotomous cross gate finally can not be Jing
The aluminum alloy melt that stalk rapidly rises steadily is assigned to the technical problem of each sprue.
The present invention is to solve above technical problem by the following technical programs：
A kind of pouring gate structure of counter-pressure casting molding, including drainage tube, are connected with cross gate, on drainage tube in each cross gate
Outer end is connected with a circular cross-runner, and sprue is connected with circular cross-runner, in the space surrounded by each sprue
It is provided with casting product.
Cross gate is shaped as M shape, and circular cross-runner connected with each external port of the cross gate of M shape
Together；It is evenly equipped with sprue at equal intervals on circular cross-runner radian.
The present invention is to add a toroidal in dichotomous cross gate outermost end, and its operation principle is rapidly risen by stalk
Aluminum alloy melt by cross gate bifurcated, be first into ring gate, sprue is placed on ring gate, then along annular
Circulation, makes the aluminium alloy for rapidly rising, is gradually buffered, and after liquid level is steady, then order is poured into sprue-gap
Road-casting mold.The running channel operation principle is according to current principle, when molten metal enters into cross gate bifurcated with certain pressure
Power, as cross gate bifurcated section is less, bifurcated is longer, each bifurcated section is slightly unequal, can cause to be assigned to each bifurcated
In aluminum alloy melt flow velocity it is different, produce height fall when finally resulting in aluminum alloy melt into sprue-casting mold（Under normal circumstances
Drop of the aluminum alloy melt in die cavity is no more than 30 millimeters）, aluminium alloy liquid produce wrap up in gas, oxidative phenomena.When outside bifurcated
When type adds annular circular groove, molten metal first can after flowing is steady inside the cannelure, then enter into simultaneously each sprue-
Gap running channel, then steadily enters casting mold.
The present invention production mechanical castings and adopt gravitational casting, low-pressure casting process method compares, intensity and
Tensile strength can improve 30%, and elongation percentage can improve 60%, and internal structural flaw is can be controlled in below relatively low grade.The present invention
Nearly 1000 kilograms of Al alloys andMg alloys liquid can steadily be sent into casting mold in tens seconds, so as to easily occur segregation to some aluminum,
Magnesium alloy plays inhibitory action, it is to avoid the appearance of casting process segregation defect.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the attachment structure schematic diagram of cross gate of the present invention 3 and circular cross-runner 2.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
A kind of pouring gate structure of counter-pressure casting molding, including drainage tube 1, are connected with cross gate 3 on drainage tube 1, horizontal pour each
The outer end in road 3 is connected with a circular cross-runner 2, and sprue 4 is connected with circular cross-runner 2, in each sprue 4 is surrounded
It is provided with casting product 5.
Cross gate 3 is shaped as M shape, and circular cross-runner 2 is connected with each external port of the cross gate 3 of M shape
Lead to together；It is evenly equipped with sprue 4 on circular cross-runner 2 at equal intervals radian.
Under Al alloys andMg alloys liquid is by the gas pressure difference effect in the closed upper and lower pressure measuring cylinder, by lower cylinder along and gravity phase
Anti- direction, through stalk-cross gate-sprue-gap running channel, is filled in the casting mold of top cylinder, and top cylinder typically keeps
650KPa pressure is constant, and Al alloys andMg alloys liquid is the crystalline forming under 650KPa pressure, can with casting large-scale labyrinth, thin-walled,
Dead size type foundry goods, its main feature with the mechanical castings of process production and adopt gravitational casting, low pressure casting
Process compares, and intensity and tensile strength can improve 30%, and elongation percentage can improve 60%, internal structural flaw：Loose, contracting
Hole, pore, pin hole can be controlled in less than 2 grades of HB5480 regulations, as the process can be in tens seconds closely
The Al alloys andMg alloys liquid of 1000Kg steadily sends into casting mold, so as to the Al alloys andMg alloys for easily occurring segregation to some play inhibitory action,
Avoid the appearance of casting process segregation defect.In Al alloys andMg alloys foundry goods counter-pressure casting forming process, circular cross-runner effect
It is, the Al alloys andMg alloys liquid come up by stalk conveying, steadily, to be evenly distributed to each sprue, then by gap running channel
Enter in casting mold, it is ensured that aluminum alloy melt enters into casting mold process, after will not rolling and being assigned to each gap running channel
Stationarity.
Claims (2)
1. a kind of pouring gate structure of counter-pressure casting molding, including drainage tube（1）, in drainage tube（1）On be connected with cross gate（3）,
Characterized in that, in each cross gate（3）Outer end be connected with a circular cross-runner（2）, in circular cross-runner（2）On be connected with
Sprue（4）.
2. a kind of pouring gate structure of counter-pressure casting molding according to claim 1, it is characterised in that cross gate（3）Shape
Shape is M shape, circular cross-runner（2）It is the cross gate with M shape（3）Each external port be connected together；In ring
Shape cross gate（2）On be evenly equipped with sprue at equal intervals radian（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022476.0A CN106513631A (en) | 2016-11-21 | 2016-11-21 | Runner structure of differential-pressure casting formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022476.0A CN106513631A (en) | 2016-11-21 | 2016-11-21 | Runner structure of differential-pressure casting formation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106513631A true CN106513631A (en) | 2017-03-22 |
Family
ID=58353033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611022476.0A Pending CN106513631A (en) | 2016-11-21 | 2016-11-21 | Runner structure of differential-pressure casting formation |
Country Status (1)
| Country | Link |
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| CN (1) | CN106513631A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107661972A (en) * | 2017-11-25 | 2018-02-06 | 山西江淮重工有限责任公司 | The casting dead head structure and its construction method of upper end face closure casting |
| CN107745081A (en) * | 2017-11-22 | 2018-03-02 | 扬州峰明光电新材料有限公司 | The differential pressure running gate system and differential pressure pouring procedure of U-shaped magnesium alloy member |
| CN107876736A (en) * | 2017-12-29 | 2018-04-06 | 洛阳乾中新材料科技有限公司 | Counter-pressure casting pouring gate structure and the casting counter-pressure casting method with the pouring gate structure |
| CN108237204A (en) * | 2018-03-07 | 2018-07-03 | 衢州学院 | A kind of aluminium alloy front end frame running gate system and manufacturing method |
| CN110681846A (en) * | 2019-09-30 | 2020-01-14 | 山西江淮重工有限责任公司 | Horizontal modeling vertical differential pressure pouring device and pouring method for aluminum alloy special-shaped structural part |
| CN112427608A (en) * | 2020-11-30 | 2021-03-02 | 贵州航天风华精密设备有限公司 | Large magnesium alloy special-shaped structural part casting die and process |
| CN113102690A (en) * | 2021-04-06 | 2021-07-13 | 洛阳乾中新材料科技有限公司 | Design method of casting mold |
| CN113560533A (en) * | 2021-08-02 | 2021-10-29 | 贵州航天风华精密设备有限公司 | Composite pouring system |
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| JP2004174517A (en) * | 2002-11-25 | 2004-06-24 | Asahi Tec Corp | CASTING METHOD AND CASTING DEVICE FOR LOW-Si Al ALLOY FOR CASTING |
| CN202239575U (en) * | 2011-06-22 | 2012-05-30 | 海门市沪海有色铸造有限公司 | Pie-shaped pouring channel for annular casting |
| CN202591550U (en) * | 2012-04-28 | 2012-12-12 | 浙江坤博机械制造有限公司 | Runner structure for casting motor casing |
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| CN103317121A (en) * | 2013-07-04 | 2013-09-25 | 辽宁卡斯特金属材料发展有限公司 | Low-pressure casting method of CT machine aluminum rotor |
| CN204747463U (en) * | 2015-07-06 | 2015-11-11 | 辽宁卡斯特金属材料发展有限公司 | Low pressure the gating system of MR coil |
| CN204747464U (en) * | 2015-07-06 | 2015-11-11 | 辽宁卡斯特金属材料发展有限公司 | RB the gating system of CT machine |
| CN204842919U (en) * | 2015-07-06 | 2015-12-09 | 辽宁卡斯特金属材料发展有限公司 | Rotor plate the gating system |
| CN204912721U (en) * | 2015-09-07 | 2015-12-30 | 辽宁卡斯特金属材料发展有限公司 | The gating system of heavy -calibre rotor |
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2016
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004174517A (en) * | 2002-11-25 | 2004-06-24 | Asahi Tec Corp | CASTING METHOD AND CASTING DEVICE FOR LOW-Si Al ALLOY FOR CASTING |
| CN202239575U (en) * | 2011-06-22 | 2012-05-30 | 海门市沪海有色铸造有限公司 | Pie-shaped pouring channel for annular casting |
| CN202591550U (en) * | 2012-04-28 | 2012-12-12 | 浙江坤博机械制造有限公司 | Runner structure for casting motor casing |
| CN202726027U (en) * | 2012-05-15 | 2013-02-13 | 新泰（辽宁）精密设备有限公司 | Low-pressure casting forming mold of castings of aluminum alloy tank body |
| CN103317121A (en) * | 2013-07-04 | 2013-09-25 | 辽宁卡斯特金属材料发展有限公司 | Low-pressure casting method of CT machine aluminum rotor |
| CN204747463U (en) * | 2015-07-06 | 2015-11-11 | 辽宁卡斯特金属材料发展有限公司 | Low pressure the gating system of MR coil |
| CN204747464U (en) * | 2015-07-06 | 2015-11-11 | 辽宁卡斯特金属材料发展有限公司 | RB the gating system of CT machine |
| CN204842919U (en) * | 2015-07-06 | 2015-12-09 | 辽宁卡斯特金属材料发展有限公司 | Rotor plate the gating system |
| CN204912721U (en) * | 2015-09-07 | 2015-12-30 | 辽宁卡斯特金属材料发展有限公司 | The gating system of heavy -calibre rotor |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745081A (en) * | 2017-11-22 | 2018-03-02 | 扬州峰明光电新材料有限公司 | The differential pressure running gate system and differential pressure pouring procedure of U-shaped magnesium alloy member |
| CN107661972A (en) * | 2017-11-25 | 2018-02-06 | 山西江淮重工有限责任公司 | The casting dead head structure and its construction method of upper end face closure casting |
| CN107876736A (en) * | 2017-12-29 | 2018-04-06 | 洛阳乾中新材料科技有限公司 | Counter-pressure casting pouring gate structure and the casting counter-pressure casting method with the pouring gate structure |
| CN108237204A (en) * | 2018-03-07 | 2018-07-03 | 衢州学院 | A kind of aluminium alloy front end frame running gate system and manufacturing method |
| CN108237204B (en) * | 2018-03-07 | 2023-06-20 | 衢州学院 | Aluminum alloy front end frame pouring system and manufacturing method |
| CN110681846A (en) * | 2019-09-30 | 2020-01-14 | 山西江淮重工有限责任公司 | Horizontal modeling vertical differential pressure pouring device and pouring method for aluminum alloy special-shaped structural part |
| CN112427608A (en) * | 2020-11-30 | 2021-03-02 | 贵州航天风华精密设备有限公司 | Large magnesium alloy special-shaped structural part casting die and process |
| CN113102690A (en) * | 2021-04-06 | 2021-07-13 | 洛阳乾中新材料科技有限公司 | Design method of casting mold |
| CN113560533A (en) * | 2021-08-02 | 2021-10-29 | 贵州航天风华精密设备有限公司 | Composite pouring system |
| CN113560533B (en) * | 2021-08-02 | 2022-11-22 | 贵州航天风华精密设备有限公司 | Composite pouring system |
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Application publication date: 20170322 |
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