CN201760578U - Low pressure casting die for automobile hubs - Google Patents
Low pressure casting die for automobile hubs Download PDFInfo
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- CN201760578U CN201760578U CN 201020294636 CN201020294636U CN201760578U CN 201760578 U CN201760578 U CN 201760578U CN 201020294636 CN201020294636 CN 201020294636 CN 201020294636 U CN201020294636 U CN 201020294636U CN 201760578 U CN201760578 U CN 201760578U
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- hole
- sprue gate
- wall
- low pressure
- pressure casting
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Abstract
The utility model discloses a low pressure casting die for automobile hubs, which comprises a lower die and an upper die, wherein the lower die and the upper die define a cavity, the central part of the lower die is provided with a pouring gate installing hole, an alumina titanate ceramic pouring gate is installed in the pouring gate installing hole, and the inner hole of the pouring gate is obconical and is communicated with the cavity. Because the alumina titanate ceramic with an obconical inner hole is used as the pouring gate of the low pressure casting die for automobile hubs, the melting point of the alumina titanate ceramic is 1860 DEG C and is far above the temperature 720 DEG C of aluminum liquid. Moreover, low thermal conductivity, high temperature resistance and good corrosion resistance of the alumina titanate ceramic pouring gate are far better than the effect of an iron pouring gate.
Description
Technical field
The utility model relates to a kind of automotive hub low pressure casting die.
Background technology
The forming technology of automobile aluminum wheel hub is divided into metal mold gravity casting, low pressure casting, extrusion casint, Forging Technology, spinning process, wherein low pressure casting has characteristics such as production efficiency height, foundry goods dense structure, automaticity height, can satisfy the needs of automobile aluminum wheel hub, become international in recent years main flow technology.In the domestic automobile aluminium wheel hub forming technique, total output be to adopt low-pressure casting process production more than 85%, all the other adopt metal mold gravity castings, extrusion casint and Forging Technology technology to produce.
The key of air injection machine is the control accuracy of furnace pressure and the reliability of equipment, the air injection machine that domestic manufacturer selects for use with the holding furnace be melting pool type be main, mould is based on the form of four die sinkings, mold cools down is a hydropneumatic, because the aluminium wheel hub develops towards the maximization direction, therefore the rigidity of equipment necessarily will be got well, and the strength of enough folding moulds is arranged.One of them very important factor is exactly the height that the flow size of die casting mouth is directly determining castability.
General aluminium alloy wheel hub of vehicle low pressure casting mould, what used at the sprue gate all is the iron sprue gate, the iron casting gate use defective be: first, the heat insulation effect at iron sprue gate is poor, be easy to generate down cold phenomenon, i.e. not cooling of wheel hub, rising head is cooling earlier, rising head can't be realized the function of feeding, thereby causes wheel hub mass defect; The second, the iron sprue gate is corroded easily, after the aluminium liquid casting of corrosion back, when getting the wheel hub blank, because the place of corrosion has aluminium liquid to flow to and be cooled to solid-state, has increased pickup (wheel hub blank) difficulty to a great extent, in order to reduce pickup (wheel hub blank) difficulty, the opening size at iron sprue gate is designed to 15 °, under the situation of fixed size on the sprue gate, the size of the submarine gate is dwindled, and the sectional area at whole sprue gate just reduces, the aluminium flow quantity reduces, and is unfavorable for the product quality of low pressure casting.
The utility model content
Technical problem to be solved in the utility model just provide a kind of sprue gate high insulating effect, corrosion-resistant, the aluminium flow quantity is big, can guarantee the automotive hub low pressure casting die of the product quality of low pressure casting.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of automotive hub low pressure casting die, comprise counterdie and patrix, described counterdie and patrix surround a die cavity, it is characterized in that: described counterdie middle part is provided with the sprue gate installing hole, an alumina titanate ceramics sprue gate is installed in the installing hole of described sprue gate, and described sprue gate endoporus is shaped as inverted cone shape and is communicated with die cavity.
As preferably, described sprue gate installing hole is a stepped hole, stepped hole comprises the top bar hole and the hole of getting out of a predicament or an embarrassing situation, the hole of wherein topping bar is a cone structure, and the hole of getting out of a predicament or an embarrassing situation is a column structure, and the hole base diameter of topping bar is less than the bore dia of getting out of a predicament or an embarrassing situation, described sprue gate outer wall is a step-like structure, the sprue gate outer wall comprises the top bar wall and the wall of getting out of a predicament or an embarrassing situation, the cone structure of the wall of wherein topping bar for cooperating with the hole of topping bar, the top bar wall and the end face apical grafting of getting out of a predicament or an embarrassing situation between wall the top bar hole and the end face between the hole of getting out of a predicament or an embarrassing situation.
As preferably, the angle of described sprue gate endoporus is 10 °.Increase the sectional area of lower end, sprue gate greatly, thereby strengthened the flow of aluminium liquid, reduced probability and the degree of shrinkage porosite greatly.Guaranteed the quality of whole casting.
As preferably, the angle of the described wall of topping bar is 4.5 °, and the angle in the hole of topping bar is 5 °.Consider the fragility of alumina titanate ceramics, the place that when design itself and mould is cooperated has reduced angle, is reduced to 5 ° to 4.5 ° to 5 ° by original 5 °, prevents in installation process the breaking of alumina titanate ceramics sprue gate.
The utility model automotive hub low pressure casting die is owing to use endoporus to be shaped as the alumina titanate ceramics of inverted cone shape as the sprue gate, the fusing point of alumina titanate ceramics is 1860 ℃, 720 ℃ of temperature that are higher than aluminium liquid far away, and its low heat conductivity, high temperature tolerance and good corrosion stability all will be got well much than the effect at iron sprue gate.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic diagram that die ontology cooperates with the sprue gate.
The specific embodiment
Follow shown in Figure 2 as Fig. 1, embodiment for a kind of automotive hub low pressure casting die of the utility model, comprise counterdie 1 and patrix 2, counterdie 1 is installed on the base 3, described counterdie and patrix surround a die cavity, described counterdie middle part is provided with sprue gate installing hole 4, and an alumina titanate ceramics sprue gate 5 is installed in the installing hole of described sprue gate, and described sprue gate endoporus is shaped as inverted cone shape and is communicated with die cavity.Described sprue gate installing hole is a stepped hole, stepped hole comprises the top bar hole 41 and the hole 42 of getting out of a predicament or an embarrassing situation, the hole of wherein topping bar is a cone structure, the hole of getting out of a predicament or an embarrassing situation is a column structure, top bar the hole base diameter less than the bore dia of getting out of a predicament or an embarrassing situation, and described sprue gate outer wall is a step-like structure, and the sprue gate outer wall comprises the top bar wall 51 and the wall 52 of getting out of a predicament or an embarrassing situation, wall 51 the cone structure of wherein topping bar, the top bar wall and the end face apical grafting of getting out of a predicament or an embarrassing situation between wall the top bar hole and the end face between the hole of getting out of a predicament or an embarrassing situation for cooperating with the hole 41 of topping bar.The angle of described sprue gate endoporus is 10 °.The angle of the described wall 51 of topping bar is 4.5 °, and the angle in the hole 41 of topping bar is 5 °.
Claims (4)
1. automotive hub low pressure casting die, comprise counterdie (1) and patrix (2), described counterdie and patrix surround a die cavity, it is characterized in that: described counterdie (1) middle part is provided with sprue gate installing hole (4), an alumina titanate ceramics sprue gate (5) is installed in the installing hole of described sprue gate, and described sprue gate endoporus is shaped as inverted cone shape and is communicated with die cavity.
2. automotive hub low pressure casting die according to claim 1, it is characterized in that: described sprue gate installing hole (4) is a stepped hole, stepped hole comprises the hole of topping bar (41) and the hole of getting out of a predicament or an embarrassing situation (42), the hole of wherein topping bar is a cone structure, the hole of getting out of a predicament or an embarrassing situation is a column structure, top bar the hole base diameter less than the bore dia of getting out of a predicament or an embarrassing situation, described sprue gate outer wall is a step-like structure, the sprue gate outer wall comprises wall of topping bar (51) and the wall of getting out of a predicament or an embarrassing situation (52), the wall of wherein topping bar is the cone structure that cooperates with the hole of topping bar, the top bar wall and the end face apical grafting of getting out of a predicament or an embarrassing situation between wall the top bar hole and the end face between the hole of getting out of a predicament or an embarrassing situation.
3. automotive hub low pressure casting die according to claim 2 is characterized in that: the angle of described sprue gate (5) endoporus is 10 °.
4. automotive hub low pressure casting die according to claim 3 is characterized in that: the angle of the described wall of topping bar (51) is 4.5 °, and the angle of the hole of topping bar (41) is 5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020294636 CN201760578U (en) | 2010-08-13 | 2010-08-13 | Low pressure casting die for automobile hubs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020294636 CN201760578U (en) | 2010-08-13 | 2010-08-13 | Low pressure casting die for automobile hubs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201760578U true CN201760578U (en) | 2011-03-16 |
Family
ID=43713181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020294636 Expired - Fee Related CN201760578U (en) | 2010-08-13 | 2010-08-13 | Low pressure casting die for automobile hubs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201760578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806333A (en) * | 2012-07-31 | 2012-12-05 | 诺德轮毂制造有限公司 | Low-pressure casting mold for aluminum wheels of trucks |
-
2010
- 2010-08-13 CN CN 201020294636 patent/CN201760578U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806333A (en) * | 2012-07-31 | 2012-12-05 | 诺德轮毂制造有限公司 | Low-pressure casting mold for aluminum wheels of trucks |
| CN102806333B (en) * | 2012-07-31 | 2014-10-01 | 诺德轮毂制造有限公司 | Low-pressure casting mold for aluminum wheels of trucks |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG JINFEI KAIDA WHEEL CO., LTD. Free format text: FORMER NAME: ZHEJIANG JINFEI KAIDA WHEELS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 321000 Zhejiang city in Jinhua Province, Xinhua Street No. 800 Patentee after: Zhejiang Jinfei Kaida Wheel Co., Ltd. Address before: 321000 Zhejiang city in Jinhua Province, Xinhua Street No. 800 Patentee before: Zhejiang Jinfei Kaida Wheel Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20150813 |
|
| EXPY | Termination of patent right or utility model |