CN201586737U - Gating system for die-casting mold - Google Patents
Gating system for die-casting mold Download PDFInfo
- Publication number
- CN201586737U CN201586737U CN2010200034838U CN201020003483U CN201586737U CN 201586737 U CN201586737 U CN 201586737U CN 2010200034838 U CN2010200034838 U CN 2010200034838U CN 201020003483 U CN201020003483 U CN 201020003483U CN 201586737 U CN201586737 U CN 201586737U
- Authority
- CN
- China
- Prior art keywords
- molten metal
- gating system
- cross
- cross gate
- die
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a gating system for a die-casting mold, which comprises a main runner, a plurality of transverse gate runners and a plurality of inner pouring gates communicated with a die cavity, wherein metal liquid flow-out ends of the transverse gate runners are communicated with corresponding inner pouring gates respectively; molten metal liquid flowing into the transverse gate runners can be injected into the die cavity of the mold through the inner pouring gates; and metal liquid flow-in ends of the transverse gate runners are communicated with the main runner. Compared with a tree-shaped gating system, the gating system can effectively avoid castings from generating unnecessary air holes and shrinkage holes and improve the quality of the castings, facilitates improvement on the process casting yield of the castings, and can be widely applied to the production of various castings.
Description
Technical field
The utility model relates to the running gate system of a kind of running gate system, particularly a kind of compression mod.
Background technology
Die casting is that a kind of molten metal bath is poured into pressed indoorly, with the die cavity of high speed filling die casting, and molten metal is solidified under pressure and form the casting method of foundry goods, and running gate system is the passage of flowing through of molten metal bath in the compression mod.Therefore, rational Design of Runner System is for guaranteeing that quality of die casting plays crucial effects.At present, the runner in the die cast mould gating system is tree-shaped divergent structure as shown in Figure 1, and mainly by sprue 1, the cross gate 3 that sprue 2, many are told from sprue 2 and the ingate 4 of UNICOM's cross gate 3 and mold cavity 5 are formed.Its course of work is: the molten metal bath of pressing constant pressure to go into enters in the sprue 2 by sprue 1, and by many cross gates 3 shuntings that are tapped on the sprue 2, make molten metal bath be injected in the compression mod die cavity 5, and form foundry goods by other subsequent handling by ingate 4.But there is following shortcoming in this running gate system:
1, when running gate system that molten metal bath is flowed through such, its area of dissipation is bigger, and thermal loss is bigger in whole casting process, the molten metal property variation that flows, easily form cold burden, can not control the temperature that enters the molten metal in the die cavity, bring big hidden danger to casting quality;
2, can't control the molten metal flow that passes through by the cross gate of telling on the sprue, can not realize control is filled in the foundry goods subregion;
3,, can't control the mobile direction of molten metal because cross gate is shorter; And because a plurality of cross gates from the telling of sprue, can disturb mutually, easily formation is turbulent therein for molten metal, is mingled with gas, influences casting quality;
4, because the projected area of whole running channel is also bigger, increase the projected area of die casting virtually, needed the large-tonnage die casting machine to carry out die casting;
5, cross section of fluid channel is long-pending can't accurate Calculation, and waste material causes casting process yield low.
The utility model content
In order to solve the above problems, the purpose of this utility model is to provide a kind of running gate system that can accurately control motlten metal flow quantity, temperature, the flow direction and flow regime, it can significantly improve casting quality, but and running channel cross-sectional area with less projected area and accurate Calculation.
The technical scheme that the invention for solving the technical problem adopted is:
A kind of die cast mould gating system, comprise sprue, many cross gates, the a plurality of ingates that are communicated with die cavity, the molten metal of described a plurality of cross gates flows out end and is communicated with corresponding ingate respectively, the molten metal bath that flows into wherein can be injected in the mold cavity by ingate, the molten metal of described cross gate flows into end and is communicated with sprue.Like this, whole running gate system forms a finger-type runner system.
As improvement of the technical scheme, the cross sectional shape of described cross gate is trapezoidal or circular.
As further improvement in the technical proposal, the sectional area of described cross gate flows into to hold molten metal to flow out and hold from molten metal and dwindles gradually.
As further improvement in the technical proposal, at the bottom of the described trapezoid cross section with height ratio be 1: 1.
As further improvement in the technical proposal, it is 1.5: 1 with molten metal outflow end cross-sectional area ratio that the cross gate molten metal flows into end.
As further improvement in the technical proposal, it is that classification is dwindled gradually that the sectional area of described cross gate holds molten metal outflow end to dwindle gradually from the molten metal inflow.
The beneficial effects of the utility model are: tree-like running gate system 1, compares, when molten metal bath is flowed through finger-type running gate system of the present utility model, molten metal bath directly flows into cross gate by sprue, and by ingate injection mold cavity, its area of dissipation is less, and thermal loss is little, molten metal maintains good flowability, avoid the too early appearance of cold burden, can control the temperature that enters the molten metal in the die cavity preferably, can greatly improve casting quality;
2, because cross gate directly is communicated with sprue, can control the molten metal flow by cross gate, the convenient realization filled control to the foundry goods subregion;
3, the cross gate that directly is communicated with sprue and ingate has sufficiently long length the molten metal direction that flows is controlled; And each cross gate is isolated mutually, is not disturbed mutually, can prevent effectively that molten metal from easily forming turbulent flow therein, avoids being mingled with gas in molten metal, thereby can effectively avoid producing unnecessary pore, shrinkage cavity in the foundry goods, improves the quality of foundry goods;
4, the runner system projected area of the utility model finger-type is less, helps to reduce the projected area of die casting, reduces the load of die casting machine, simultaneously also because of area occupied is few, is easy to arrange runner.
5, the cross section of fluid channel of finger-type running gate system is long-pending can accurately calculate, and can save material, is easy to improve the product yield of foundry goods.
And branch's runner of each isolation is beneficial to the follow-up adjustment in die trial or the production process, avoids attending to one thing and lose sight of another.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is a die cast mould gating system structural representation in the prior art;
Fig. 2 is the utility model die cast mould gating system structural representation.
The specific embodiment
With reference to Fig. 2, a kind of die cast mould gating system of the present utility model, comprise sprue 1, many cross gates 3, the a plurality of ingates 4 that are communicated with die cavity 5, the molten metal of described a plurality of cross gate 3 flows out end and is communicated with corresponding ingate 4 respectively, the molten metal bath that flows into wherein can be injected in the mold cavity 5 by ingate 4, the molten metal of described cross gate 3 flows into end and is communicated with sprue 1.The die cast mould gating system of the present utility model tree-like running gate system that compares, when molten metal bath is flowed through finger-type running gate system of the present utility model, molten metal bath directly flows into cross gate 3 by sprue 1, and by ingate injection mold cavity 5, its area of dissipation is less, and thermal loss is little, molten metal maintains good flowability, avoid the too early appearance of cold burden, can control the temperature that enters the molten metal in the die cavity preferably, can greatly improve casting quality.Because cross gate 3 directly is communicated with sprue 1, can control molten metal flow by cross gate 3, the convenient realization filled control to the foundry goods subregion.The cross gate 3 that directly is communicated with sprue 1 and ingate 4 has sufficiently long length the mobile direction of molten metal is controlled.And each cross gate 3 is isolated mutually, is not disturbed mutually, can prevent effectively that molten metal from easily forming turbulent flow therein, avoids being mingled with gas in molten metal, thereby can effectively avoid producing unnecessary pore, shrinkage cavity in the foundry goods, improves the quality of foundry goods.In addition, the runner system projected area of the utility model finger-type is less, helps to reduce the projected area of die casting, reduces the load of die casting machine, simultaneously also because of area occupied is few, is easy to arrange runner.And the cross section of fluid channel of finger-type running gate system is long-pending can accurately to be calculated, and can save material, is easy to improve the product yield of foundry goods.Branch's runner of each isolation is beneficial to the follow-up adjustment in die trial or the production process, avoids attending to one thing and lose sight of another.
The cross sectional shape of described cross gate 3 is circular or trapezoidal.Because of the cross gate 3 molten metal thermal loss of trapezoid cross section are little, easy to process, it is all easy that design is measured, and adapts to widely, so in the present embodiment, sectional area is trapezoidal, and its end and height ratio are 1: 1.In this ratio design, near circular, the ratio of girth and sectional area is less for its sectional area, and promptly the area of dissipation of runner is little, and capacity is big.Thereby reduce its area of dissipation, reduce the thermal loss in the flow process, guarantee that the molten metal that enters in the die cavity has enough flowabilities.
Consider that from pressure transmission aspect cross gate 3 sectional areas are the bigger the better; And consider that from heat transmission aspect the internal surface area of cross gate 3 is the smaller the better, so area of section and surface area ratio number are big more, running channel is effective more.
As preferred implementation, the sectional area of described cross gate 3 flows into to hold molten metal to flow out and hold from molten metal and dwindles gradually.To keep molten metal flow velocity cross gate 3 in constant or quicken equably, prevent negative pressure and the eddy current that increases in the mobile process of molten metal is wrapped up in gas.It is can also be that classification is dwindled gradually that the sectional area of described cross gate 3 holds molten metal outflow end to dwindle gradually from the molten metal inflow, be about to whole running channel and dwindle its sectional dimension respectively by the plurality of sections section length, use the changes of section of this structure mild, can effectively reduce the flow passage resistance force of waterproof of molten metal, save the die casting energy.
As preferred implementation, it is 1-2 with molten metal outflow end cross-sectional area ratio that cross gate 3 molten metals flow into end: 1.For example the ratio that can get 1.5: 1 determines that running channel dwindles value.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (8)
1. die cast mould gating system, comprise sprue (1), many cross gates (3), the a plurality of ingates (4) that are communicated with die cavity (5), the molten metal of described a plurality of cross gate (3) flows out end and is communicated with corresponding ingate (4) respectively, the molten metal bath that flows into wherein can be injected in the mold cavity (5) by ingate (4), it is characterized in that: the molten metal of described cross gate (3) flows into end and is communicated with sprue (1).
2. die cast mould gating system according to claim 1 is characterized in that: the cross sectional shape of described cross gate (3) is trapezoidal.
3. die cast mould gating system according to claim 1 is characterized in that: the cross sectional shape of described cross gate (3) is circular.
4. according to claim 1,2 or 3 described die cast mould gating system, it is characterized in that: the sectional area of described cross gate (3) flows into to hold molten metal to flow out and hold from molten metal and dwindles gradually.
5. die cast mould gating system according to claim 2 is characterized in that: the end of described trapezoid cross section and height ratio are 1: 1.
6. according to claim 1,2 or 3 described die cast mould gating system, it is characterized in that: it is 1.5: 1 with molten metal outflow end cross-sectional area ratio that cross gate (3) molten metal flows into end.
7. die cast mould gating system according to claim 4 is characterized in that: it is 1.5: 1 with molten metal outflow end cross-sectional area ratio that cross gate (3) molten metal flows into end.
8. die cast mould gating system according to claim 4 is characterized in that: it is that classification is dwindled gradually that the sectional area of described cross gate (3) holds molten metal outflow end to dwindle gradually from the molten metal inflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200034838U CN201586737U (en) | 2010-01-10 | 2010-01-10 | Gating system for die-casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200034838U CN201586737U (en) | 2010-01-10 | 2010-01-10 | Gating system for die-casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201586737U true CN201586737U (en) | 2010-09-22 |
Family
ID=42746505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200034838U Expired - Lifetime CN201586737U (en) | 2010-01-10 | 2010-01-10 | Gating system for die-casting mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201586737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874741A (en) * | 2015-06-05 | 2015-09-02 | 临汾鹏泰伟业有限公司 | Manufacturing process of magnesium metal refining kettle |
-
2010
- 2010-01-10 CN CN2010200034838U patent/CN201586737U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874741A (en) * | 2015-06-05 | 2015-09-02 | 临汾鹏泰伟业有限公司 | Manufacturing process of magnesium metal refining kettle |
| CN104874741B (en) * | 2015-06-05 | 2016-09-07 | 临汾鹏泰伟业有限公司 | A kind of metallic magnesium refining pot manufacturing process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101733386A (en) | Die cast mould gating system | |
| CN103736928B (en) | A kind of evaporative pattern running gate system of gear box | |
| CN102554130B (en) | Casting method for high-nickel austenite nodular cast iron exhaust manifold | |
| CN206567500U (en) | A kind of casting system of automobile clutch flywheel decompression cast | |
| CN103658542A (en) | Precision casting gating system | |
| CN204711100U (en) | A kind of casting mold for 465Q motor cylinder block | |
| CN201922023U (en) | Low-pressure casting mold for aluminum alloy wheel | |
| CN202070720U (en) | Bottom gating system | |
| CN202291267U (en) | Strip-shaped product die casting mould pouring system | |
| CN201586737U (en) | Gating system for die-casting mold | |
| CN203140697U (en) | Pouring system for casting resin sands of gas compressor bearing seat of gas turbine | |
| CN202725962U (en) | Casting system for metal mold gravity casting aluminum piston | |
| CN106216607B (en) | A kind of casting bottom pouring system | |
| CN109332604A (en) | The method for solving cylindric nodular iron casting shrinkage porosite | |
| CN203541440U (en) | Casting wax mold with dispersed hot sections | |
| CN201324826Y (en) | Aluminum alloy die-cast pouring and arranging structure of engine suspension support | |
| CN201217059Y (en) | Low pressure casting mould structure of aluminium alloy wheel hub | |
| CN102233418A (en) | Novel hot runner system | |
| CN204724801U (en) | Full width type belt pulley with groove casting mould | |
| CN103801659A (en) | Pouring system for aluminum alloy sleeper beam casting | |
| CN203356531U (en) | Forming die for engine cylinder head | |
| CN203711775U (en) | Shrinkage-loosing-resistant hub gating system | |
| CN202021338U (en) | Low pressure casting mold producing two products with one mold | |
| CN203495174U (en) | Die-casting system for forming safety belt body castings | |
| CN203830692U (en) | Brake chamber shell die-casting die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100922 |
|
| CX01 | Expiry of patent term |