CN202239566U - Pouring gate device for magnesium alloy die-casting part of manual transmission casing in saloon - Google Patents
Pouring gate device for magnesium alloy die-casting part of manual transmission casing in saloon Download PDFInfo
- Publication number
- CN202239566U CN202239566U CN2011203502957U CN201120350295U CN202239566U CN 202239566 U CN202239566 U CN 202239566U CN 2011203502957 U CN2011203502957 U CN 2011203502957U CN 201120350295 U CN201120350295 U CN 201120350295U CN 202239566 U CN202239566 U CN 202239566U
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- China
- Prior art keywords
- running channel
- magnesium alloy
- manual transmission
- saloon
- pouring channel
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- Expired - Fee Related
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Abstract
The utility model relates to a pouring gate device for a magnesium alloy die-casting part of a manual transmission casing in a saloon. The device comprises a pressure chamber connected with one end of a first pouring channel and that of a second pouring channel respectively; the first pouring channel and the second pouring channel are Y-shaped; and the other end of the first pouring channel and that of the second pouring channel are respectively connected with a main body. The utility model has the benefits that an aluminium alloy die-casting part is replaced by the magnesium alloy die-casting part, so that the weight is lessened, further the oil consumption is reduced, and the mechanical performance is not affected; and the magnesium alloy cast is leakage prevention, so that an improvement mode is provided for the optimization of the similar casting parts of saloon aluminium alloy transmission casings.
Description
Technical field
The utility model relates to a kind of interior manual transmission housing die casting of car that adopts magnesium alloy, relates in particular to the gating apparatus of the interior manual transmission housing die casting of car of this employing magnesium alloy.
Background technology
Case of transmission in the prior art car generally adopts the heavy wall aluminum alloy die casting, because of the Al-alloy casing casting weight at 10kg, so oil consumption is brought influence.
So, changing it into magnesium alloy materials one-step die casting in the prior art, casting weight is at 6.8kg.But magnesium alloy materials thermal capacity is little, and heavy wall die casting higher-pressure region is prone to produce sbrinkage blowhole and causes leakage.
How to design that a kind of to adopt the gating apparatus of magnesium alloy manual transmission housing die casting be that the technical staff will consider.
Summary of the invention
The utility model technical issues that need to address have provided a kind of gating apparatus that adopts the interior manual transmission housing die casting of car of magnesium alloy, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is realized through following technical scheme:
The utility model comprises: press the chamber; Described pressure chamber links to each other respectively with an end of first running channel and second running channel; " Y " type that is shaped as of described first running channel and second running channel; The other end of described first running channel and second running channel links to each other with body respectively.
Compared with prior art, the beneficial effect of the utility model is: weight has been alleviated after having substituted aluminum alloy die casting with magnesium alloy die casting, and mechanical performance does not reduce, and the alleviating to bring of weight reduced oil consumption; And guaranteed that Mg alloy castings does not leak, the optimization for similar car aluminium alloy speed change device housing die casting provides a kind of improved mode.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is a prior art processing sketch map.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Visible by Fig. 1: the utility model comprises: press chamber 1; Described pressure chamber 1 links to each other respectively with the end of first running channel 2 with second running channel 3; " Y " type that is shaped as of described first running channel 2 and second running channel 3; The other end of described first running channel 2 and second running channel 3 links to each other with body 7 respectively.
The material of the body 7 in the utility model is a magnesium alloy; The wall thickness of said body 7 is between 4-8mm.
Manual transmission housing processing method in the car of the utility model, realize through following steps:
Step 1: magnesium liquid is fast through pressing chamber filling in 1 minute two tunnel; Described two tunnel " Y " type that is shaped as;
Step 2: lead up to first running channel 2 and another road through second running channel, 3 filling shell castings;
In two the tunnel fill; At first higher-pressure region 8 (higher-pressure region is the foundry goods design parameter of the oil pressure of anti-20kg) filled; Satisfy after the heavy wall aequum of higher-pressure region; Recharging magnesium liquid in 6, the first jiaos 4 and second jiaos 5 of foundry goods remainder and the far-ends directly fills when filling and satisfies 6 moulding of foundry goods far-end.
Step 3: after filling completion; Though foundry goods moulding but have many shrinkage cavity holes that vary in size in its wall; So within 0.1 millisecond after the completion, open function of increasing pressure device enforcement supercharging on the press automatically, will press the magnesium liquid that does not also solidify in chamber 1, first running channel 2 and second running channel 3 simultaneously; Under the effect of pressurized energy with magnesium liquid fill up in the shrinkage cavity hole in the casting section thickness with whole mould wall in, particularly satisfy the shrinkage cavity hole in the heavy wall of higher-pressure region.Because the foundry goods higher-pressure region is nearest from cast gate, so feeding hole effect is more directly finer and close after the supercharging.
In step 1, described two tunnel " Y " type that is shaped as is: the sprue Design of length is 35mm, and thickness is 25mm; First running channel 2 and the second running channel width are designed to each 30mm, and angle is 35 degree, and thickness is 4mm.
The fill system of the utility model has changed former aluminium alloy castings " flat triangle " type fill system (A as shown in Figure 2), has designed short Y type and has filled runner system, and the integral-filled wall that do not occur rushing to summit is flow backwards, and has stablized whole fluidised form.The sprue Design of length of fill system is 35mm, and thickness is 25mm, shortens and fills distance, reduces the filling time, slows down the quick cooling, the loss of minimizing pressurized energy that bring for a short time because of magnesium alloy thermal capacity.2#3# cast gate width is designed to each 30mm; Angle is 35 degree, and thickness is 4mm, make magnesium liquid through cast gate speed up and the magnesium liquid measure gets into the die cavity amount and satisfies; Slow down the quick cooling of magnesium liquid, improved the validity of whole foundry goods being filled promptness, integrality and the supercharging of type.
The utility model has substituted aluminum alloy materials with magnesium alloy materials, has realized the design of magnesium alloy thick wall shell foundry goods fill system, has remedied magnesium alloy materials and has been prone to the fast shortcoming of cooling; It is big to make the foundry goods filling satisfy a loading, once fills the distance weak point, and a filling time is few; One time filling speed is big, and it is short that the pressure time is built in a supercharging, effectively extrudes gas in higher-pressure region gas and the whole casting mold; Realize effective feeding, position, foundry goods higher-pressure region compactness is improved greatly, guarantee not reveal.
Claims (2)
1. a gating apparatus that adopts the interior manual transmission housing die casting of car of magnesium alloy comprises: press the chamber; Described pressure chamber links to each other respectively with an end of first running channel and second running channel; It is characterized in that: " Y " type that is shaped as of described first running channel and second running channel; The other end of described first running channel and second running channel links to each other with body respectively.
2. the gating apparatus of manual transmission housing die casting in the car of employing magnesium alloy according to claim 1 is characterized in that: the sprue length that first running channel and second running channel are formed is 35mm, and thickness is 25mm; First running channel (2) and the second running channel width are each 30mm, and angle is 35 degree, and thickness is 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203502957U CN202239566U (en) | 2011-09-19 | 2011-09-19 | Pouring gate device for magnesium alloy die-casting part of manual transmission casing in saloon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203502957U CN202239566U (en) | 2011-09-19 | 2011-09-19 | Pouring gate device for magnesium alloy die-casting part of manual transmission casing in saloon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202239566U true CN202239566U (en) | 2012-05-30 |
Family
ID=46100868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203502957U Expired - Fee Related CN202239566U (en) | 2011-09-19 | 2011-09-19 | Pouring gate device for magnesium alloy die-casting part of manual transmission casing in saloon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202239566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736928A (en) * | 2014-01-17 | 2014-04-23 | 合肥工业大学 | Evanescent mode pouring system of speed changing box body |
| CN105290332A (en) * | 2014-07-16 | 2016-02-03 | 浙江盾安轻合金科技有限公司 | Spruing device and manufacturing method for cooling fin |
-
2011
- 2011-09-19 CN CN2011203502957U patent/CN202239566U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736928A (en) * | 2014-01-17 | 2014-04-23 | 合肥工业大学 | Evanescent mode pouring system of speed changing box body |
| CN103736928B (en) * | 2014-01-17 | 2015-08-19 | 合肥工业大学 | A kind of evaporative pattern running gate system of gear box |
| CN105290332A (en) * | 2014-07-16 | 2016-02-03 | 浙江盾安轻合金科技有限公司 | Spruing device and manufacturing method for cooling fin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140919 |
|
| EXPY | Termination of patent right or utility model |