CN203124650U - Device for reducing casting flaws in joint between rim and spoke - Google Patents
Device for reducing casting flaws in joint between rim and spoke Download PDFInfo
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- CN203124650U CN203124650U CN 201220715136 CN201220715136U CN203124650U CN 203124650 U CN203124650 U CN 203124650U CN 201220715136 CN201220715136 CN 201220715136 CN 201220715136 U CN201220715136 U CN 201220715136U CN 203124650 U CN203124650 U CN 203124650U
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- copper
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Abstract
The utility model discloses a device for reducing casting flaws in a joint between a rim and a spoke. The device comprises stainless steel air pipes, copper pipes and cooling copper plugs, wherein each copper pipe is installed in a circular hole of the corresponding cooling copper plug; each stainless steel air pipe is installed inside the corresponding copper pipe; circular holes are formed in a top die of an aluminum alloy wheel die, namely in the joint of the spoke and the rim; and three to twenty-one cooling devices are installed in the circular holes, and each cooling device comprises a stainless steel air pipe, a copper pipe and a cooling copper plug. The cooling delay time is set to be 80 to 150 seconds, and the starting time is set to be 150 to 300 seconds; a low-pressure casting machine control system controls cooling air; and the cooling air is directly blown to the cooling copper plugs through the stainless steel air pipes when being connected, and then heat, at the joint of the spoke and the rim, absorbed by the cooling copper plugs is discharged out of the die, so that rebound air in the die is prevented, and the casting flaws in the joint of the spoke and the rim are reduced. The device is simple to manufacture and convenient to use, and can effectively reduce the casting flaws in the joint of the rim and the spoke.
Description
Technical field
The present invention relates to auto parts and components and make the field, specifically, relate to a kind of device that reduces wheel rim and spoke junction casting flaw.
Background technology
At present, there is the company of nearly 150 tame professional production aluminum alloy wheel of vehicle in China, output accounts for 50% of global aluminum vehicle wheel total output, but the manufacturing technology of the aluminum alloy wheel of vehicle of China is in medium level always in the world, and there are tangible difference in particularly casting level and developed country.The casting of aluminum vehicle wheel is a hot worked process, at present the distinct issues of forming process are to be easy to generate casting flaws such as shrinkage cavity, shrinkage porosite, evacuation, after detecting a flaw, directly scrap, or scrap because of bad causing such as bad order, airtight check gas leakage after the machining.Simultaneously because of the aluminum alloy wheel of vehicle design feature, spoke and wheel rim junction volume are bigger, there is the thermal center point easily, the casting crystalline process of setting is difficult to make the thickness gradient that solidify in order spoke and wheel rim junction to solidify, often make spoke and wheel rim junction be very easy to form shrinkage cavity, shrinkage porosite, this problem is the extremely scabrous casting internal flaw that the aluminum vehicle wheel industry is generally acknowledged.At present, the major control measure that industry solves this knotty problem has the cooling duct that adds cast iron or cast steel in this position, or increasing feeding passage, though but find that at foundry production above method is to a certain degree solved spoke and wheel rim junction thermal center point, but existing cooling duct is owing to be directly to blow at mould inside, the process of blowing causes that namely adjacent area spoke feeding passage solidifies in advance or the local loose airtight check gas leakage that causes of wheel rim because existence bounce-back wind causes the influence to adjacent spokes and wheel rim position easily; The material that the making airduct adopts is steel pipe or iron pipe, and radiating effect is poor, and cooling effect is not good, and shrinkage cavity and shrinkage porosite are improved DeGrain; Adopt steel pipe or iron pipe production process repeatability bad with repeatability; Too much increase the feeding passage and cause blank weight excessive, allowance increases, and gets the material rate and reduces, and manufacturing cost improves, and has weakened China's aluminum-alloy wheel industry competitive advantage in the international market.The focus of the ten minutes concern that therefore how to research and develop a kind of thermal center point that can effectively solve spoke and wheel rim root be China's aluminum vehicle wheel manufacturing.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, cause the problem of casting flaws such as shrinkage cavity, shrinkage porosite easily at low pressure casting aluminum alloy rim for automobile wheel and spoke junction, provide a kind of easy to use, obvious results to reduce the device of wheel rim and spoke junction casting flaw
Realize that above purpose technical scheme is: a kind of device that reduces wheel rim and spoke junction casting flaw, comprise stainless steel airduct, copper pipe, cooling copper plug, cooling copper is drilled with circular port beyond the Great Wall, copper pipe is assemblied in the circular port of cooling copper plug, the stainless steel airduct is assemblied in copper pipe inside, and cooling copper plug, copper pipe, stainless steel airduct interconnect and form this backform cooling device.
At aluminum-alloy wheel mold top holder position, be that corresponding aluminum-alloy wheel spoke and wheel rim connecting portion arranges circular port, assembling comprises the cooling device of stainless steel airduct, copper pipe, cooling copper plug in the backform circular port, should dispose 3～21 according to wheel modelling feature cooling device, require to set this cooling duct delay time 80～150 seconds, 150～300 seconds opening times according to the aluminum-alloy wheel casting technique, opened and closed by air injection machine control system control cooling duct.When cooling air is connected, cooling air directly blows to cooling copper plug by the stainless steel airduct, spoke and wheel rim connecting portion heat that cooling copper plug is absorbed are discharged into the mould outside by the stainless steel airduct that is equipped with copper pipe, thereby reduce the formation of spoke and wheel rim connecting portion thermal center point, reduce casting flaw herein; Simultaneously can make and do not form bounce-back wind in the mould because stainless steel airduct outside is equipped with copper pipe, make cooling procedure not influence adjacent wheel rim and spoke zone; Not only good heat dissipation effect but also production process repeatability is good with repeatability to adopt copper pipe simultaneously.
The present invention compares with traditional handicraft to have obvious advantage and is, not only can avoid existing cooling duct to cause bounce-back wind to cause influence to adjacent spokes and wheel rim position easily by directly blowing at mould inside; Take full advantage of simultaneously because the good characteristics of heat conductivility of copper, the wheel rim of easy formation thermal center point and the heat radiation of zone, spoke junction are played good effect, therefore are a kind of simple, easy to use, the minimizing wheel rim of stable production process and novel cooling devices of spoke junction cast inside defective made.
Description of drawings
Fig. 1 is mold top holder cooling device structural representation of the present invention.
Fig. 2 is mold top holder cooling device of the present invention and mould assembly structure schematic diagram.
Concrete embodiment
As shown in Figure 1, mold top holder cooling device structural representation, this device comprises stainless steel airduct 1, copper pipe 2, cooling copper plug 3, be drilled with circular port on the cooling copper plug 3, copper pipe 2 is assemblied in the circular hole of cooling copper plug 3, stainless steel airduct 1 is assemblied in copper pipe 2 inside, and stainless steel airduct 1, copper pipe 2, cooling copper plug 3 interconnect and form low pressure casting aluminum alloy wheel backform cooling device of the present invention.
Be illustrated in figure 2 as mold top holder cooling device and mould assembly structure schematic diagram, comprise backform 4, limit mould 5 and bed die 6.Spoke and wheel rim connecting portion at the corresponding aluminum-alloy wheel of backform 4 arrange circular hole, an end of the backform cooling device cooling copper plug 3 that the assembling assembling finishes in the backform circular hole.
Embodiment 1,847-2011 backform cooling device, this device is combined by cooling copper plug, copper pipe, stainless steel airduct, according to 5 of this cooling device assemblings of this wheel modelling feature, require to set this cooling duct delay time 100 seconds, 180 seconds opening times according to the aluminum-alloy wheel casting technique, opened and closed by air injection machine control system control cooling duct.When cooling air is connected, cooling air directly blows to cooling copper plug by the stainless steel airduct, spoke and wheel rim connecting portion heat that cooling copper plug is drawn are discharged into the mould outside by the stainless steel airduct that is equipped with copper pipe, thereby reduce the formation of spoke and wheel rim connecting portion thermal center point, reduce casting flaw herein.
Embodiment 2,935-2411 backform cooling device, this device is combined by cooling copper plug, copper pipe, stainless steel airduct, according to 10 of this cooling device assemblings of this wheel modelling feature, require to set this cooling duct delay time 120 seconds, 220 seconds opening times according to the aluminum-alloy wheel casting technique, opened and closed by air injection machine control system control cooling duct.When cooling air is connected, cooling air directly blows to cooling copper plug by the stainless steel airduct, spoke and wheel rim connecting portion heat that cooling copper plug is drawn are discharged into the mould outside by the stainless steel airduct that is equipped with copper pipe, thereby reduce the formation of spoke and wheel rim connecting portion thermal center point, reduce casting flaw herein.
Claims (2)
1. device that reduces wheel rim and spoke junction casting flaw, it is characterized in that: this device comprises stainless steel airduct (1), copper pipe (2), cooling copper plug (3), be drilled with circular port on the cooling copper plug (3), copper pipe (2) is assemblied in the circular hole of cooling copper plug (3), and stainless steel airduct (1) is assemblied in copper pipe (2) inside; At aluminum-alloy wheel mold top holder position, be that corresponding spoke and wheel rim connecting portion arranges circular port, assembling comprises the cooling device of stainless steel airduct (1), copper pipe (2), cooling copper plug (3) in the backform circular port, by air injection machine control system control cooling air, directly blow to cooling copper plug (3) by stainless steel airduct (1) when cooling air is connected, spoke and the wheel rim connecting portion heat that will cool off copper plug (3) absorption are discharged into the mould outside by copper pipe (2).
2. according to the described a kind of device that reduces wheel rim and spoke junction casting flaw of claim 1, it is characterized in that according to 3～21 of wheel modelling feature backform cooling device configurations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220715136 CN203124650U (en) | 2012-12-20 | 2012-12-20 | Device for reducing casting flaws in joint between rim and spoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220715136 CN203124650U (en) | 2012-12-20 | 2012-12-20 | Device for reducing casting flaws in joint between rim and spoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203124650U true CN203124650U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220715136 Expired - Fee Related CN203124650U (en) | 2012-12-20 | 2012-12-20 | Device for reducing casting flaws in joint between rim and spoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203124650U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128570A (en) * | 2014-07-14 | 2014-11-05 | 中信戴卡股份有限公司 | Spinning wheel intensive-cooling die |
| CN105033192A (en) * | 2015-07-20 | 2015-11-11 | 浙江曙光实业有限公司 | Device for cooling iron core of automobile hub mold |
| CN107186198A (en) * | 2017-06-22 | 2017-09-22 | 中信戴卡股份有限公司 | A kind of plunger for strengthening the cooling of spoke root R angles |
| 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 |
-
2012
- 2012-12-20 CN CN 201220715136 patent/CN203124650U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128570A (en) * | 2014-07-14 | 2014-11-05 | 中信戴卡股份有限公司 | Spinning wheel intensive-cooling die |
| CN105033192A (en) * | 2015-07-20 | 2015-11-11 | 浙江曙光实业有限公司 | Device for cooling iron core of automobile hub mold |
| CN107186198A (en) * | 2017-06-22 | 2017-09-22 | 中信戴卡股份有限公司 | A kind of plunger for strengthening the cooling of spoke root R angles |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20141220 |
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| EXPY | Termination of patent right or utility model |