CN1947893A - Method for mfg. aluminium alloy wheel hub - Google Patents

Method for mfg. aluminium alloy wheel hub Download PDF

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Publication number
CN1947893A
CN1947893A CN 200610146924 CN200610146924A CN1947893A CN 1947893 A CN1947893 A CN 1947893A CN 200610146924 CN200610146924 CN 200610146924 CN 200610146924 A CN200610146924 A CN 200610146924A CN 1947893 A CN1947893 A CN 1947893A
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mold
aluminium alloy
wheel hub
shape
manufacture method
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黄伟锋
项振双
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Abstract

A technology for casting an Al-alloy wheel hub includes such steps as smelting Al alloy, pouring the molten Al alloy into a mould with a shrink allowance region, applying an external pressure to said shrink allowance region, and cooling. Its product has high strength.

Description

The manufacture method of aluminium alloy wheel hub
Technical field:
The present invention relates to a kind of manufacture method of aluminium alloy wheel hub.
Background technology:
At present, domestic aluminium alloy wheel hub adopts the method manufacturing of gravitational casting or low pressure casting usually.
Gravitational casting is to be the aluminium alloy that melts shape obtains foundry goods by gravity effect filling casting chamber casting method, and its mold is reusable.The advantage of gravitational casting is: technology is simple, equipment investment cost is low.At present, the investment of the equipment of a cover gravitational casting aluminium alloy wheel hub is greatly about 100,000 yuans.Because aluminium alloy wheel hub can shrink when cooling, generally in the mould of gravitational casting, to reserve feeding surplus district greater than workpiece weight 15%, the aluminum alloy materials in this feeding surplus district can compensate the amount of contraction of aluminium alloy wheel hub when cooled and solidified.And when machined, this feeding surplus district is removed.It makes that aluminium liquid utilization rate is lower, and the surface treatment workload is big.Moreover for guaranteeing aluminium alloy moulding in mold, the wall thickness of mold cavity is thicker, and the surface treatment workload is bigger when making fine finishining.Simultaneously, the aluminium alloy wheel hub of gravitational casting exist density low, be positioned at the inconsistent situation of upper and lower part aluminium alloy density, make wheel hub inside be easy to generate bubble, the intensity of wheel hub is lower.
Low pressure casting is meant less than 5kg/cm 2Down cast of pressure.Be provided with mold and holding furnace in the equipment of low pressure casting, it charges into holding furnace with compressed air, and the aluminium water in the holding furnace is pressed in the mold by stalk, casts.The low pressure casting advantage: aluminium alloy wheel hub density is higher relatively, and resistance to deformation and anti-impact force are more intense; During casting, the contraction of aluminium alloy wheel hub when cooling carried out feeding by the aluminium liquid in the stalk, and its surface treatment workload when fine finishining is less relatively, and aluminium liquid utilization rate is higher.Be beneficial to the production in enormous quantities wheel hub.But its deficiency is: low-pressure die casting plant cost of investment height, the investment of the low-pressure die casting plant of a present aluminium alloy wheel hub are greatly about 2,000,000 yuans.Because the withstand voltage restriction of equipment such as holding furnace and stalk makes the aluminium alloy wheel hub density of low pressure casting and intensity further not to improve.Before workpiece casting die sinking, need bleed off a large amount of high temperature compressed airs that capable pressurize is used that dashes, energy resource consumption is big.Low-pressure die casting plant maintenance cost height.The power of hydraulic pump is big, and energy resource consumption is big.
Summary of the invention:
The objective of the invention is to: the manufacture method of the aluminium alloy wheel hub of provide that a kind of equipment cost is low, aluminium liquid utilization rate height, wheel hub intensity are desirable.The present invention is achieved through the following technical solutions:
A kind of manufacture method of aluminium alloy wheel hub is characterized in that: this method may further comprise the steps: aluminum alloy materials is heated, make aluminum alloy materials be the fusing shape; The aluminum alloy materials of fusing shape is poured into mold from the cast gate of mold, be provided with feeding surplus district in the mold, the aluminum alloy materials of fusing shape is at gravity effect retrofilling mold; After the aluminum alloy materials of fusing shape filled up mold, feeding surplus district left fusing shape aluminum alloy materials, and at the external pressure in feeding surplus district, external pressure melts shape in mold aluminium alloy is exerted pressure; Aluminium alloy in cooling mold and the mold makes it form the wheel hub crude green body; Processing wheel hub crude green body is made the wheel hub finished product.
Pour into the method that the mold process adopts gravitational casting because the present invention will be melted the aluminum alloy materials of shape, it is compared with low pressure casting: equipment investment cost and maintenance cost all can reduce greatly, and in casting process, energy resource consumption is little.Because saved the holding furnace that is connected with mold among the present invention, external pressure is not subjected to the withstand voltage restriction of holding furnace, it can apply greater than 5kg/cm the aluminium alloy of fusing shape in the mold 2Pressure, improving the density of aluminium alloy wheel hub, thereby improve the intensity of aluminium alloy wheel hub.
Because after the aluminum alloy materials that the present invention will be melted shape fills up mold, by the external pressure in feeding surplus district, external pressure melts shape in mold aluminium alloy is exerted pressure.It is compared with gravitational casting: can make the density of aluminium alloy wheel hub relative higher, resistance to deformation and anti-impact force are more intense; The contraction of aluminium alloy wheel hub when cooling compensated by feeding surplus district, and its surface treatment workload when fine finishining is less relatively, and aluminium liquid utilization rate is higher, is beneficial to and produces the better quality wheel in enormous quantities.
In the present invention, described external pressure melts the method that the aluminium alloy of shape exerts pressure and comprises in mold: after the aluminium alloy of fusing shape all pours into mold, compressed air hose is docked with feeding surplus district, compressed air is exerted pressure to the aluminium alloy that melts shape in the mold.
Plant because aluminium alloy approximately needs time spent 6-8 to divide in mold from the molten state to the curdled appearance, by compressed air the aluminium alloy in the mold is pressurizeed, as long as compressed air hose is docked just and can realize with feeding surplus district, its pressurized operation is very convenient.And can dynamically pressurize as requested, prevent that not solidified aluminium alloy from flowing out from the slit of mold.
In the present invention, described external pressure melts the method that the aluminium alloy of shape exerts pressure and comprises in mold: after the aluminium alloy of fusing shape all pours into mold, with piston the aluminium alloy in the feeding surplus district is exerted pressure.With piston the aluminium alloy of fusing shape in the mold is exerted pressure, can realize goal of the invention of the present invention equally.
In the present invention, during described aluminium alloy in cooling mold and mold, cooling is earlier cooled off the aluminum alloy materials in feeding surplus district again away from the aluminum alloy materials in feeding surplus district.Adopt said method can realize that the contraction of aluminium alloy wheel hub when cooling compensated by feeding surplus district.
In the present invention, during aluminium alloy in cooling mold and mold, adopt the method for water-cooled to cool off.Certainly, also can adopt method cooling air-cooled or air-cooled and that water-cooled is combined.Above-mentioned cooling means all can be controlled the cooling order easily, guarantees the castability of wheel hub.
In the present invention, described feeding surplus district is located at the cast gate place.The district is located at the cast gate place with the feeding surplus, can realize docking of external pressure and feeding surplus interval easily.
In the present invention, described feeding surplus district is located at the rising head place.It can realize goal of the invention of the present invention equally.
Description of drawings:
Fig. 1 is the operating process schematic diagram of a kind of aluminium alloy wheel hub casting method of the present invention.
Fig. 2 is the schematic diagram of the mold portion of a kind of Birmasil wheel hub of the present invention.
Fig. 3 is the generalized section that the present invention makes aluminium alloy wheel hub.
Fig. 4 is the schematic diagram that the present invention makes aluminium alloy wheel hub.
Fig. 5 is that the another kind of casting of the present invention aluminium closes the schematic diagram of the mold portion that is golden wheel hub.
The specific embodiment:
As shown in Figure 1: the manufacture method of the aluminium alloy wheel hub of present embodiment may further comprise the steps:
1, aluminum alloy materials is heated, make aluminum alloy materials be the fusing shape;
2, the aluminum alloy materials that will melt shape pours into mold from the cast gate of mold, is provided with feeding surplus district in the mold, and the aluminum alloy materials of fusing shape is at gravity effect retrofilling mold;
3, after the aluminum alloy materials of fusing shape filled up mold, feeding surplus district left fusing shape aluminum alloy materials, and at the external pressure in feeding surplus district, external pressure melts shape in mold aluminium alloy is exerted pressure;
4, the aluminium alloy in cooling mold and the mold makes it form the wheel hub crude green body;
5, processing wheel hub crude green body is made the wheel hub finished product.
In conjunction with Fig. 1, Fig. 2, Fig. 3, shown in Figure 4: in the present embodiment, mold is made of patrix 6, counterdie 7 and left and right side form 8,9, the aluminum alloy materials 10 of fusing shape pours in the mold from the cast gate 11 of mold, is provided with feeding surplus district 12 in the mold, and feeding surplus district 12 is located at cast gate 11 places.The aluminum alloy materials 10 of fusing shape is at gravity effect retrofilling mold.And feeding surplus district 12 leaves fusing shape aluminum alloy materials 10.After casting is finished, block cast gate with plug 16, plug 16 links to each other with compressed air hose, gives the external pressure in feeding surplus district, and external pressure is compressed air, and compressed air hose 13 is docked with cast gate 11, and compressed air is just exerted pressure to the aluminium alloy of fusing shape in the mold.
Aluminium alloy in cooling mold and the mold makes it form the wheel hub crude green body: during aluminium alloy 10 in cooling mold and mold, with the aluminum alloy materials of cooling tube 14 coolings away from feeding surplus district 12, cool off the aluminum alloy materials in feeding surplus district 12 more earlier.During aluminium alloy in cooling mold and mold, adopt water-cooled, method air-cooled or water-cooled and air-cooled combination to cool off.Process the wheel hub crude green body at last and just can be made into wheel hub finished product 15.
Pour into the method that the mold process adopts gravitational casting because the present invention will be melted the aluminum alloy materials of shape, its equipment investment cost and maintenance cost all can reduce greatly, and in casting process, energy resource consumption is little.And can the aluminium alloy of fusing shape in the mold be applied greater than 5kg/cm 2Pressure, improving the density of aluminium alloy wheel hub, thereby improve the intensity of aluminium alloy wheel hub.Because after the aluminum alloy materials that the present invention will be melted shape fills up mold, by the external pressure in feeding surplus district, external pressure melts shape in mold aluminium alloy is exerted pressure.It can make the density of aluminium alloy wheel hub higher relatively, and resistance to deformation and anti-impact force are more intense; The contraction of aluminium alloy wheel hub when cooling compensated by feeding surplus district, and its surface treatment workload when fine finishining is less relatively, and aluminium liquid utilization rate is higher, is beneficial to and produces the better quality wheel in enormous quantities.
Present embodiment pressurizes to the aluminium alloy in the mold by compressed air, as long as compressed air hose is docked just and can realize with feeding surplus district, its pressurized operation is very convenient.
Fig. 5 has provided another embodiment of the present utility model.In the present embodiment, external pressure melts the method that the aluminium alloy of shape exerts pressure and comprises in mold: after the aluminium alloy 10 of fusing shape all pours into mold, exert pressure with the aluminium alloy in 17 pairs of feeding surpluses of piston district.It can realize goal of the invention of the present invention equally.
In the present invention, mold can adopt the trumpet assembly formula shown in two embodiment, also can adopt side gate type certainly, and the quantity of cast gate can be one or more.Certainly, feeding surplus of the present invention district 12 also can be located at the rising head place, and rising head is meant with the aluminium alloy wheel hub crude green body and links to each other, feeding workpiece surplus when being used to cast, the aluminium alloy of removing when machined.

Claims (9)

1, a kind of manufacture method of aluminium alloy wheel hub is characterized in that: this method may further comprise the steps: aluminum alloy materials is heated, make aluminum alloy materials be the fusing shape; The aluminum alloy materials of fusing shape is poured into mold from the cast gate of mold, be provided with feeding surplus district in the mold, the aluminum alloy materials of fusing shape is at gravity effect retrofilling mold; After the aluminum alloy materials of fusing shape filled up mold, feeding surplus district left fusing shape aluminum alloy materials, and at the external pressure in feeding surplus district, external pressure melts shape in mold aluminium alloy is exerted pressure; Aluminium alloy in cooling mold and the mold makes it form the wheel hub crude green body; Processing wheel hub crude green body is made the wheel hub finished product.
2, the manufacture method of aluminium alloy wheel hub according to claim 1; It is characterized in that: described external pressure melts the method that the aluminium alloy of shape exerts pressure and comprises in mold: after the aluminium alloy of fusing shape all pours into mold, compressed air hose is docked with feeding surplus district, and compressed air is exerted pressure to the aluminium alloy of fusing shape in the mold.
3, the manufacture method of aluminium alloy wheel hub according to claim 1; It is characterized in that: described external pressure melts the method that the aluminium alloy of shape exerts pressure and comprises in mold: after the aluminium alloy of fusing shape all pours into mold, with piston the aluminium alloy in the feeding surplus district is exerted pressure.
4, the manufacture method of aluminium alloy wheel hub according to claim 1; It is characterized in that: during described aluminium alloy in cooling mold and mold, cooling is earlier cooled off the aluminum alloy materials in feeding surplus district again away from the aluminum alloy materials in feeding surplus district.
5, the manufacture method of aluminium alloy wheel hub according to claim 1; It is characterized in that: described feeding surplus district is located at the cast gate place.
6, the manufacture method of aluminium alloy wheel hub according to claim 1; It is characterized in that: described feeding surplus district is located at the rising head place.
7, the manufacture method of aluminium alloy wheel hub according to claim 4; It is characterized in that: during aluminium alloy in cooling mold and mold, adopt the method for water-cooled to cool off.
8, the manufacture method of aluminium alloy wheel hub according to claim 4; It is characterized in that: during aluminium alloy in cooling mold and mold, adopt air-cooled method to cool off.
9, the manufacture method of aluminium alloy wheel hub according to claim 4; It is characterized in that: during aluminium alloy in cooling mold and mold, adopt water-cooled and air-cooled combined method to cool off.
CN 200610146924 2006-11-15 2006-11-15 Method for mfg. aluminium alloy wheel hub Pending CN1947893A (en)

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101837442A (en) * 2010-02-04 2010-09-22 保定市立中车轮制造有限公司 Low pressure casting wheel cooling technology
CN101554658B (en) * 2008-04-09 2010-12-08 浙江万丰科技开发有限公司 A Feeding Process for Center Casting in Gravity Casting
CN101298121B (en) * 2008-05-28 2011-06-15 林卫新 Method for processing motorcycle hub
CN102381132A (en) * 2010-08-31 2012-03-21 上海汇众汽车制造有限公司 Automobile hub and processing technology thereof
CN101554655B (en) * 2008-04-07 2013-10-02 现代自动车株式会社 Cooling system for low pressure casting device
CN103331430A (en) * 2013-07-02 2013-10-02 无锡戴卡轮毂制造有限公司 Method for cooling die of low-pressure cast aluminum alloy hub in water-mist mode
CN103433468A (en) * 2013-08-08 2013-12-11 无锡锦绣轮毂有限公司 System and method for pressure-assisted metal gravity casting
CN103831418A (en) * 2012-11-20 2014-06-04 浙江启铖汽配有限公司 Die for gravity casting and low-pressure casting
CN103878349A (en) * 2014-03-22 2014-06-25 中信戴卡宁波轮毂制造有限公司 Casting method and device
WO2015131522A1 (en) * 2014-03-05 2015-09-11 浙江巨科实业股份有限公司 Aluminum alloy hub manufacturing method
CN105324197A (en) * 2013-06-20 2016-02-10 日立金属株式会社 Cast article manufacturing method, casting device, and gas supply nozzle used in casting device
CN105339110A (en) * 2013-06-20 2016-02-17 日立金属株式会社 Cast article manufacturing method
CN105592960A (en) * 2013-09-30 2016-05-18 日立金属株式会社 Casting device and method for manufacturing cast article using same
CN105834400A (en) * 2016-05-03 2016-08-10 刘加兴 Mold structure and production technique for upward-poured and low pressure-cast motorcycle aluminum wheel
CN105880486A (en) * 2016-05-20 2016-08-24 江苏苏美达车轮有限公司 Die and method for casting wheel hub
CN106086498A (en) * 2016-08-26 2016-11-09 安徽永昌金属制品有限公司 Aluminium alloy wheel hub gravity melt casting process
CN106975739A (en) * 2016-01-17 2017-07-25 梁长城 The steel die and its fine casting method cast for stainless steel or cast iron
CN108145128A (en) * 2016-12-05 2018-06-12 慕贝尔性能车轮有限公司 Pouring device and casting method
WO2020243900A1 (en) * 2019-06-03 2020-12-10 上海昌强工业科技股份有限公司 High-temperature alloy pressure casting mold and casting process for impeller and guide vane

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101554655B (en) * 2008-04-07 2013-10-02 现代自动车株式会社 Cooling system for low pressure casting device
CN101554658B (en) * 2008-04-09 2010-12-08 浙江万丰科技开发有限公司 A Feeding Process for Center Casting in Gravity Casting
CN101298121B (en) * 2008-05-28 2011-06-15 林卫新 Method for processing motorcycle hub
CN101837442A (en) * 2010-02-04 2010-09-22 保定市立中车轮制造有限公司 Low pressure casting wheel cooling technology
CN102381132B (en) * 2010-08-31 2014-04-23 上海汇众汽车制造有限公司 Automobile hub and processing technology thereof
CN102381132A (en) * 2010-08-31 2012-03-21 上海汇众汽车制造有限公司 Automobile hub and processing technology thereof
CN103831418A (en) * 2012-11-20 2014-06-04 浙江启铖汽配有限公司 Die for gravity casting and low-pressure casting
CN105324197B (en) * 2013-06-20 2018-11-06 日立金属株式会社 Cast manufacturing method, the casting device of article
CN105324197A (en) * 2013-06-20 2016-02-10 日立金属株式会社 Cast article manufacturing method, casting device, and gas supply nozzle used in casting device
CN105339110A (en) * 2013-06-20 2016-02-17 日立金属株式会社 Cast article manufacturing method
US10213828B2 (en) 2013-06-20 2019-02-26 Hitachi Metals, Ltd. Method for producing castings, casting apparatus, and gas-blowing nozzle used in casting apparatus
CN103331430A (en) * 2013-07-02 2013-10-02 无锡戴卡轮毂制造有限公司 Method for cooling die of low-pressure cast aluminum alloy hub in water-mist mode
CN103433468A (en) * 2013-08-08 2013-12-11 无锡锦绣轮毂有限公司 System and method for pressure-assisted metal gravity casting
CN103433468B (en) * 2013-08-08 2016-04-27 无锡锦绣轮毂有限公司 The auxiliary pressure gravity casting system of metal mold and casting method
CN105592960A (en) * 2013-09-30 2016-05-18 日立金属株式会社 Casting device and method for manufacturing cast article using same
WO2015131522A1 (en) * 2014-03-05 2015-09-11 浙江巨科实业股份有限公司 Aluminum alloy hub manufacturing method
CN103878349A (en) * 2014-03-22 2014-06-25 中信戴卡宁波轮毂制造有限公司 Casting method and device
CN106975739A (en) * 2016-01-17 2017-07-25 梁长城 The steel die and its fine casting method cast for stainless steel or cast iron
CN105834400A (en) * 2016-05-03 2016-08-10 刘加兴 Mold structure and production technique for upward-poured and low pressure-cast motorcycle aluminum wheel
CN105880486A (en) * 2016-05-20 2016-08-24 江苏苏美达车轮有限公司 Die and method for casting wheel hub
CN105880486B (en) * 2016-05-20 2019-04-26 江苏苏美达车轮有限公司 A mold and method for casting a wheel hub
CN106086498A (en) * 2016-08-26 2016-11-09 安徽永昌金属制品有限公司 Aluminium alloy wheel hub gravity melt casting process
CN106086498B (en) * 2016-08-26 2018-07-03 安徽永昌金属制品有限公司 Aluminium alloy wheel hub gravity melt casting process
CN108145128A (en) * 2016-12-05 2018-06-12 慕贝尔性能车轮有限公司 Pouring device and casting method
CN108145128B (en) * 2016-12-05 2021-06-22 慕贝尔性能车轮有限公司 Casting device and casting method
TWI801360B (en) * 2016-12-05 2023-05-11 奧地利商慕貝爾性能車輪有限公司 Casting device and casting method
WO2020243900A1 (en) * 2019-06-03 2020-12-10 上海昌强工业科技股份有限公司 High-temperature alloy pressure casting mold and casting process for impeller and guide vane
US11858032B2 (en) 2019-06-03 2024-01-02 Shanghai Changqiang Industrial Technology Limited Company High-temperature alloy pressure casting mold and casting process for impeller and guide vane

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