CN201760580U - Low pressure casting die for eliminating the shrinkage defect of aluminium alloy wheel spoke - Google Patents
Low pressure casting die for eliminating the shrinkage defect of aluminium alloy wheel spoke Download PDFInfo
- Publication number
- CN201760580U CN201760580U CN2010205367103U CN201020536710U CN201760580U CN 201760580 U CN201760580 U CN 201760580U CN 2010205367103 U CN2010205367103 U CN 2010205367103U CN 201020536710 U CN201020536710 U CN 201020536710U CN 201760580 U CN201760580 U CN 201760580U
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- Prior art keywords
- low pressure
- copper
- shrinkage defect
- spoke
- pressure casting
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- Expired - Lifetime
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- 238000005266 casting Methods 0.000 title claims abstract description 20
- 230000007547 defect Effects 0.000 title claims abstract description 15
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Provided is a low pressure casting die for eliminating the shrinkage defect of an aluminium alloy wheel spoke, the die is characterized in that a copper cooling plug is additionally arranged on the top die of the die, due to the conductivity factor of copper is much higher than steel, the heat at the hot spot of the root part of the rim can be transmitted to the cold end from the hot end of the copper cooling plug, and then the heat is transferred into atmosphere by the cooling wind at the cold end, thereby realizing the quick transfer of the heat released from the solidification of the hot spots of castings, accelerating the cooling speed, eliminating the shrinkage defect, shortening the casting period and improving production efficiency.
Description
Technical field
The utility model relates to a kind of casting mould, particularly is intended to eliminate the low pressure casting die of aluminum-alloy wheel spoke shrinkage defect.
Background technology
Existing aluminum-alloy wheel low pressure casting technology fails thoroughly to solve to spoke root shrinkage defect problem all the time, and spoke shrinkage defect waste product has still occupied the over half of casting process waste product.At first,, formed thermal center naturally, shrinkage porosite occurred at the spoke root because the foundry goods of spoke and spoke junction is thick big, serious or be exposed to cast(ing) surface.And in order to eliminate thermal center, existing way is by prolonging the casting dwell time, delaying the spoke setting rate, feeding thermal center as much as possible, alleviate the pressure of shrinkage defect waste product, meanwhile reduced the mechanical property and the production efficiency of spoke, production cost is high.
Summary of the invention
Can not effectively eliminate the shortcoming of spoke shrinkage defect in order to overcome existing aluminum vehicle wheel low pressure casting technology, the utility model provides a kind of mould, and this mould can not only be eliminated the spoke shrinkage defect, improves qualified casting, and can shorten casting cycle, improve aluminum vehicle wheel low pressure casting production efficiency.
The technical solution adopted for the present invention to solve the technical problems is: the low pressure casting die of eliminating low pressure casting aluminum vehicle wheel spoke shrinkage defect, this mould is except backform, bed die and four limit moulds, on backform, corresponding foundry goods spoke root thermal center place is provided with copper cooling plug.Selecting diameter for use is the red copper bar of 20mm, after the shaping to be processed, need to handle through peening, improve the resistance to deformation and the corrosion and heat resistant ability of copper cooling plug, the through-hole position of packing into and processing at backform is in advance filled in the copper cooling, the copper of staying in the backform inner chamber is loaded onto forced air cooled tube beyond the Great Wall, is exposed at backform cavity surface outer part and backform machined flush.At last, to impose the protective finish of coagulability thermal insulation coatings conduct preferably with cooling position, piston part with the cooling plug.
After aluminium liquid is filled complete mold cavity, can thermal center appear in the thick big place of foundry goods, but because the thermal conductivity factor of copper is 3-4 times of steel, can by copper cooling plug with the heat at thermal center place than other position faster rate of heat exchange with the hot junction guiding cold junction of heat from the copper plug, and be aided with in good time cooling wind action, the heat of deriving changed to the atmospheric environment balance digest, thereby reach the purpose that the aluminum vehicle wheel spoke cools off, eliminates thermal center fast.
The invention has the beneficial effects as follows, can under copper cooling plug and cooling air effect, cool off the foundry goods thermal center fast, when realizing eliminating the spoke shrinkage defect, can also shorten casting cycle, improve aluminum vehicle wheel low pressure casting production efficiency.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is mould structure of the present utility model and fundamental diagram
1. backforms among the figure, 2. limit mould, 3. cooling duct, 4. copper cooling plug, 5. bed die, 6 fens flow cones, 7. sprue bush, 8. cup.
The specific embodiment
In Fig. 1, liquid metal flow through cup (8), sprue bush (7), divide flow cone (6) to enter in the mold cavity, in the mold cavity of forming by backform (1), bed die (5) and four limit moulds (2), finish cavity filling process.After treating that the liquid metal cavity filling process is finished, be pressurized to dwell pressure fast, open transfer of heat that cooling duct (3) is delivered to cold junction with copper cooling plug (4) hot junction after second in atmospheric environment through pressurize 30-40, air-cooled lasting 80-120 second, the foundry goods until the thermal center place solidifies fully.So, when copper cooling plug (4) cools off foundry goods, transmission heat fast, be aided with air-cooled effect, can fast and effeciently eliminate aluminum-alloy wheel spoke shrinkage defect.
Claims (2)
1. eliminate the low pressure casting die of aluminum-alloy wheel spoke shrinkage defect, comprise bed die, limit mould, backform, it is characterized in that: backform copper cooling plug (4) and supporting cooling duct (3) thereof are set, copper cooling plug (3) is transferred to cold junction with the heat at spoke thermal center place fast by the hot junction of copper plug, and opens cooling air the transfer of heat of cold junction is given in the atmospheric environment.
2. according to the low pressure casting die of the described elimination aluminum-alloy wheel of claim 1 spoke shrinkage defect, it is characterized in that: the thermal insulation coatings of copper cooling plug surface spraying strong adhesion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205367103U CN201760580U (en) | 2010-09-21 | 2010-09-21 | Low pressure casting die for eliminating the shrinkage defect of aluminium alloy wheel spoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205367103U CN201760580U (en) | 2010-09-21 | 2010-09-21 | Low pressure casting die for eliminating the shrinkage defect of aluminium alloy wheel spoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201760580U true CN201760580U (en) | 2011-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205367103U Expired - Lifetime CN201760580U (en) | 2010-09-21 | 2010-09-21 | Low pressure casting die for eliminating the shrinkage defect of aluminium alloy wheel spoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201760580U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463333A (en) * | 2011-12-02 | 2012-05-23 | 江苏凯特汽车部件有限公司 | Low-pressure cast aluminum-alloy wheel top-mould cooling device |
| CN102641998A (en) * | 2012-05-04 | 2012-08-22 | 中信戴卡轮毂制造股份有限公司 | Improved aluminum wheel cast mould and processing method |
| CN102806320A (en) * | 2011-05-31 | 2012-12-05 | 旭技术株式会社 | Coating method |
| CN103551546A (en) * | 2013-11-16 | 2014-02-05 | 佛山市南海奔达模具有限公司 | Low-pressure casting mold capable of cooling hot node quickly |
| CN107838380A (en) * | 2017-12-06 | 2018-03-27 | 浙江万丰奥威汽轮股份有限公司 | A kind of mold pushing mechanism for reducing aluminium alloy wheel hub spoke root internal porosity |
-
2010
- 2010-09-21 CN CN2010205367103U patent/CN201760580U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806320A (en) * | 2011-05-31 | 2012-12-05 | 旭技术株式会社 | Coating method |
| CN102806320B (en) * | 2011-05-31 | 2015-09-02 | 旭技术株式会社 | Painting type method |
| CN102463333A (en) * | 2011-12-02 | 2012-05-23 | 江苏凯特汽车部件有限公司 | Low-pressure cast aluminum-alloy wheel top-mould cooling device |
| CN102463333B (en) * | 2011-12-02 | 2014-05-07 | 江苏凯特汽车部件有限公司 | Low-pressure cast aluminum-alloy wheel top-mould cooling device |
| CN102641998A (en) * | 2012-05-04 | 2012-08-22 | 中信戴卡轮毂制造股份有限公司 | Improved aluminum wheel cast mould and processing method |
| CN103551546A (en) * | 2013-11-16 | 2014-02-05 | 佛山市南海奔达模具有限公司 | Low-pressure casting mold capable of cooling hot node quickly |
| CN107838380A (en) * | 2017-12-06 | 2018-03-27 | 浙江万丰奥威汽轮股份有限公司 | A kind of mold pushing mechanism for reducing aluminium alloy wheel hub spoke root internal porosity |
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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: CITIC DICASTAL CO., LTD. Free format text: FORMER NAME: DICASTAL WHEEL MANUFACTURING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 066318 Longhai Road, Qinhuangdao economic and Technological Development Zone, Hebei, No. 185 Patentee after: CITIC Dicastal Co., Ltd. Address before: 066003 No. 355, Donggang Road, seaport District, Hebei, Qinhuangdao Patentee before: Dicastal Wheel Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |
|
| CX01 | Expiry of patent term |