CN104818398A - Aluminum alloy for wheel hub and preparation method thereof, and aluminum alloy wheel hub - Google Patents
Aluminum alloy for wheel hub and preparation method thereof, and aluminum alloy wheel hub Download PDFInfo
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- CN104818398A CN104818398A CN201510128740.8A CN201510128740A CN104818398A CN 104818398 A CN104818398 A CN 104818398A CN 201510128740 A CN201510128740 A CN 201510128740A CN 104818398 A CN104818398 A CN 104818398A
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Abstract
The invention discloses an aluminum alloy for a wheel hub and a preparation method thereof, and an aluminum alloy wheel hub. The preparation method comprises the following steps: a, melting an aluminum ingot so as to prepare a primary aluminum liquid; b, mixing a slag-clearing agent with the primary aluminum liquid, and discharging molten slag so as to prepare a second-stage aluminum liquid; c, mixing a refining agent with the second-stage aluminum liquid in the presence of nitrogen and then carrying out standing and slagging so as to prepare a third-stage aluminum liquid; d, mixing a refiner and a modifier with the third-stage aluminum liquid so as to prepare a fourth-stage aluminum liquid; E, spreading the slag-clearing agent onto the surface of the fourth-stage aluminum liquid to clear slag so as to prepare a fifth-stage aluminum liquid; and f, spreading the slag-clearing agent on the surface of the fifth-stage aluminum liquid, and carrying out degassing treatment so as to prepare the aluminum alloy for the wheel hub. According to the invention, the contents of hydrogen and impurities in the aluminum alloy for the wheel hub are low, so the aluminum alloy for the wheel hub has excellent fluidity and shrinkage during solidification; therefore, the surface of the aluminum alloy wheel hub prepared from the aluminum alloy used for the wheel hub is free of pin holes and slag holes.
Description
Technical field
The present invention relates to aluminium alloy, particularly, relate to a kind of wheel hub aluminium alloy and preparation method thereof and aluminium alloy wheel hub.
Background technology
The working method of existing aluminium alloy wheel hub comprises: the molten refined of aluminium ingot, casting and machining.The quality of the aluminium liquid after molten refined directly determines the quality of aluminium alloy wheel hub, and the quality of aluminium liquid determines primarily of four aspects: the hydrogen richness 1) in aluminium liquid; 2) content of inclusion in aluminium liquid.
Wherein, the shrinkability when content of inclusion determines the pin hole situation of surface of aluminum alloy hub, the mobility of aluminium liquid and solidifies in the hydrogen richness in aluminium liquid and aluminium liquid.Once the too high levels of hydrogen in aluminium liquid, so hydrogen atom finally can be discharged with the form of hydrogen, so will certainly form more pin hole at aluminium alloy wheel hub, learn according to pertinent literature, only has hydrogen content in aluminium liquid to be less than 0.04cm
3during/100g, surface of aluminum alloy hub just there will not be at pin hole.
In aluminium liquid, main inclusions is γ-Al
2o
3, α-Al
2o
3, SiO
2, MgO and TiO
2, other inclusiones are little.On the one hand, the content of inclusion plays a part substantivity to aluminium alloy wheel hub cinder hole, in castingprocesses, the aluminium liquid flow through first will solidify very thin one deck half curdled appearance on the mold surface, first generates α (Al) dendrite, dendrite can block inclusion, inclusion is all again high-melting-point substances, and proportion is all than aluminium liquid weight, and in flow process, inclusion will collide, agglomeration, forms large cinder hole on the surface of mould.On the other hand, the content of inclusion also plays vital effect to the mobility of aluminium liquid and shrinkability when solidifying, when the too high levels of inclusion, the mobility that then directly can reduce aluminium liquid makes aluminium liquid be difficult to fill up casting mould, also can improve shrinkability when solidifying simultaneously, so directly cause the wheel hub cast easily to produce distortion.
Hydrogen richness in existing aluminium liquid and the content of inclusion generally higher, directly affects the quality of aluminium alloy wheel hub, cause the low qualified of aluminium alloy wheel hub, and then increase production cost.
Summary of the invention
The object of this invention is to provide a kind of wheel hub aluminium alloy and preparation method thereof and aluminium alloy wheel hub, the content of this wheel hub Dissolved H in Liquid Al-Si Alloy content and inclusion is all lower, shrinkability when making this wheel hub aluminium alloy have excellent mobility and solidify, and then make by the obtained surface of aluminum alloy hub free of pinholes of this wheel hub aluminium alloy and cinder hole.
To achieve these goals, the invention provides a kind of preparation method of wheel hub aluminium alloy, described preparation method comprises:
A, aluminium ingot is carried out melting make elementary aluminium liquid;
B, slag-cleaning agent to be mixed with described elementary aluminium liquid, then discharge slag and make secondary aluminium liquid;
C, under the existence of nitrogen, refining agent to be mixed with described secondary aluminium liquid, then leave standstill, deslagging makes three grades of aluminium liquid;
D, fining agent, alterant and described three grades of aluminium liquid are carried out being mixed and made into level Four aluminium liquid;
Pyatyi aluminium liquid is made with scarfing cinder in e, surface slag-cleaning agent being spread on described level Four aluminium liquid
F, slag-cleaning agent is spread on described Pyatyi aluminium liquid surface and carry out degassing processing with obtained wheel hub aluminium alloy;
Wherein, described aluminium ingot comprises element silicon, magnesium elements, titanium elements, ferro element, copper, zinc element, manganese element and aluminium element; Relative to the aluminium ingot of 100 weight parts, the content of described element silicon is 6.5-7.5 weight part, the content of described magnesium elements is 0.30-0.45 weight part, the content of described titanium elements is 0.08-0.20 weight part, the content of described ferro element is not more than 0.12 weight part, and the content of described copper is not more than 0.05 weight part, and the content of described zinc element is not more than 0.05 weight part, the content of described manganese element is not more than 0.05 weight part, and surplus is described aluminium element.
Present invention provides a kind of wheel hub aluminium alloy, described wheel hub aluminium alloy is prepared from by above-mentioned method.
Present invention also offers a kind of aluminium alloy wheel hub, described wheel hub is prepared from by above-mentioned wheel hub aluminium alloy.
By technique scheme, the present invention, by forming elementary aluminium liquid after aluminium ingot melting, then adding slag-cleaning agent and carrying out primary scarfing cinder reduction inclusion to form secondary aluminium liquid in elementary aluminium liquid; In the atmosphere of nitrogen, further carry out except Slag treatment secondary aluminium liquid, but also carried out the process of degasification while slagging-off, and then prevent oxygen to the oxidation of aluminium liquid, water vapour and aluminium liquid carry out reacting to produce hydrogen, thus reduce the hydrogen richness in aluminium liquid; By fining agent, alloy refinement is carried out to three grades of aluminium liquid, thus make aluminium liquid can refinement α (Al) when crystallization, and then improve the unit elongation of aluminium alloy, and alterant can refining eutectic silicon, because the particle of Eutectic Silicon in Al-Si Cast Alloys is less, and then the surface of aluminium alloy wheel hub is avoided to occur pin hole.Reaction due to fining agent, alterant and three grades of aluminium liquid causes there is more inclusion in level Four aluminium liquid, therefore needs again to carry out scarfing cinder process by slag-cleaning agent to level Four aluminium liquid.Carry out scarfing cinder process and degassing processing finally by Pyatyi aluminium liquid simultaneously, thus make the inclusion in obtained wheel hub aluminium alloy and hydrogen richness all drop to Schwellenwert, thus ensure that this wheel hub aluminium alloy has the mobility of excellence and shrinkability when solidifying, and then make by the obtained surface of aluminum alloy hub free of pinholes of this wheel hub aluminium alloy and cinder hole.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Embodiment
Below the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
The invention provides a kind of preparation method of wheel hub aluminium alloy, described preparation method comprises:
A, aluminium ingot is carried out melting make elementary aluminium liquid;
B, slag-cleaning agent to be mixed with described elementary aluminium liquid, then discharge slag and make secondary aluminium liquid;
C, under the existence of nitrogen, refining agent to be mixed with described secondary aluminium liquid, then leave standstill, deslagging makes three grades of aluminium liquid;
D, fining agent, alterant and described three grades of aluminium liquid are carried out being mixed and made into level Four aluminium liquid;
Pyatyi aluminium liquid is made with scarfing cinder in e, surface slag-cleaning agent being spread on described level Four aluminium liquid
F, slag-cleaning agent is spread on described Pyatyi aluminium liquid surface and carry out degassing processing with obtained wheel hub aluminium alloy;
Wherein, described aluminium ingot comprises element silicon, magnesium elements, titanium elements, ferro element, copper, zinc element, manganese element and aluminium element; Relative to the aluminium ingot of 100 weight parts, the content of described element silicon is 6.5-7.5 weight part, the content of described magnesium elements is 0.30-0.45 weight part, the content of described titanium elements is 0.08-0.20 weight part, the content of described ferro element is not more than 0.12 weight part, and the content of described copper is not more than 0.05 weight part, and the content of described zinc element is not more than 0.05 weight part, the content of described manganese element is not more than 0.05 weight part, and surplus is described aluminium element.
In step a of the present invention, the actual conditions of described melting can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in step a, described melting meets following condition: smelting temperature is 700-760 DEG C, and smelting time is 1-3h.
In step b of the present invention, the concrete consumption of each material can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in stepb, relative to the described elementary aluminium liquid of 100 weight parts, the consumption of described slag-cleaning agent is 0.2-0.3 weight part;
In step b of the present invention, the actual conditions of mixing can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in stepb, described mixing meets the following conditions: mixing temperature is 700-760 DEG C, and mixing time is 5-10min.
In step c of the present invention, the concrete consumption of each material can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in step c, relative to the described secondary aluminium liquid of 100 weight parts, the consumption of described refining agent is 0.3-0.4 weight part.
In step c of the present invention, the actual conditions of mixing can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in step c, described mixing meets the following conditions: mixing temperature is 700-760 DEG C, and mixing time is 10-20min.
In step c of the present invention, the actual conditions left standstill can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in step c, described leaving standstill meets the following conditions: mixing temperature is 700-760 DEG C, and mixing time is 4-6min.
In step c of the present invention, the concrete kind of refining agent can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in step c, described refining agent be selected from sodium fluoroaluminate, potassium fluoroaluminate, Sodium Silicofluoride, potassium silicofluoride and carbon hexachloride one or more.
In steps d of the present invention, the concrete consumption of each material can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in steps d, relative to described three grades of aluminium liquid of 100 weight parts, the consumption of described fining agent is 0.1-0.3 weight part, and the consumption of described alterant is 0.01-0.03 weight part.
In steps d of the present invention, the actual conditions of mixing can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in steps d, described mixing meets the following conditions: mixing temperature is 700-760 DEG C, and mixing time is 10-20min.
In steps d of the present invention, the concrete kind of fining agent can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in steps d, described fining agent is selected from Al-Ti-B alloy or Al-Ti-C alloy.
In steps d of the present invention, the concrete kind of alterant can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in steps d, described alterant is selected from Al-Sr
10alloy or Al-Sb
8alloy.
In step e of the present invention, the concrete consumption of each material can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in step e, relative to the described level Four aluminium liquid of 100 weight parts, the consumption of described slag-cleaning agent is 0.05-0.15 weight part.
In step f of the present invention, the concrete consumption of each material can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in step f, relative to the described level Four aluminium liquid of 100 weight parts, the consumption of described slag-cleaning agent is 0.05-0.15 weight part.
In step f of the present invention, the actual conditions of degassing processing can be selected in wide scope, but in order to the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion are controlled in lower scope, preferably, in step f, described degassing processing is undertaken by passing into rare gas element in described Pyatyi aluminium liquid.More preferably, in step f, described rare gas element is nitrogen and air pressure is 0.1-0.2Mpa.
In the present invention, the concrete consumption of each material can be selected in wide scope, but in order to control in lower scope by the obtained hydrogen richness of wheel hub aluminium alloy and the content of inclusion, preferably, described slag-cleaning agent is selected from one or more in sodium-chlor, Repone K and sodium carbonate.
Present invention provides a kind of wheel hub aluminium alloy, described wheel hub aluminium alloy is prepared from by above-mentioned method.
Present invention also offers a kind of aluminium alloy wheel hub, described wheel hub is prepared from by above-mentioned wheel hub aluminium alloy.
Below will be described the present invention by embodiment.The commercially available product that the trade mark that the aluminium ingot used in following examples is Jiangsu Cheng Chao Aluminum company limited is A356, fining agent is the trade mark of Dongguan City letter titanium metal material company limited is the Al-Ti-B alloy of Al-4Ti-0.005B, and alterant is the trade mark of Xinchang Shuan Ning Machinery Co., Ltd. is Al-Sr
10commercially available product, other raw materials are conventional commercially available product.
Embodiment 1
A, being A356 by the 1000kg trade mark at 740 DEG C, aluminium ingot melting 2h makes elementary aluminium liquid;
B, at 740 DEG C, by 2.5g slag-cleaning agent (mass ratio of sodium-chlor, Repone K and sodium carbonate is 1:0.8:0.05) and 1000kg elementary aluminium liquid mixing 8min, then discharge slag make secondary aluminium liquid;
C, under the existence of 740 DEG C and nitrogen, by 3.5kg refining agent (mass ratio of sodium fluoroaluminate, Sodium Silicofluoride and carbon hexachloride is 1:1.5:0.02) and described secondary aluminium liquid mixing 15min, then leave standstill 5min, deslagging makes three grades of aluminium liquid;
D, at 740 DEG C, by 2kg fining agent (Dongguan City letter titanium metal material company limited the trade mark be the Al-Ti-B alloy of Al-4Ti-0.005B), (trade mark of Xinchang Shuan Ning Machinery Co., Ltd. is Al-Sr to 0.2kg alterant
10commercially available product) make level Four aluminium liquid with 1000kg tri-grades of aluminium liquid mixing 15min;
E, at 740 DEG C, Pyatyi aluminium liquid is made with scarfing cinder in the surface that 1kg slag-cleaning agent (mass ratio of sodium-chlor, Repone K and sodium carbonate is 1:0.8:0.05) is spread on 1000kg level Four aluminium liquid
F, at 740 DEG C, 1kg slag-cleaning agent (mass ratio of sodium-chlor, Repone K and sodium carbonate is 1:0.8:0.05) is spread on the surface of 1000kg Pyatyi aluminium liquid, then passing into air pressure is that the nitrogen of 0.15Mpa carries out degassing processing with obtained wheel hub aluminium alloy A1.
The hydrogen richness of this wheel hub aluminium alloy, the content of each inclusion, shrinkability when solidifying and mobility parameter are in table 1.
Embodiment 2
A, being A356 by the 1000kg trade mark at 700 DEG C, aluminium ingot melting 1h makes elementary aluminium liquid;
B, at 700 DEG C, by 2g slag-cleaning agent (mass ratio of sodium-chlor, Repone K and sodium carbonate is 1:0.5:0.03) and 1000kg elementary aluminium liquid mixing 5min, then discharge slag make secondary aluminium liquid;
C, under the existence of 700 DEG C and nitrogen, by 3kg refining agent (mass ratio of sodium fluoroaluminate, Sodium Silicofluoride and carbon hexachloride is 1:1:0.01) and described secondary aluminium liquid mixing 10min, then leave standstill 4min, deslagging makes three grades of aluminium liquid;
D, at 700 DEG C, by 1kg fining agent (Dongguan City letter titanium metal material company limited the trade mark be the Al-Ti-B alloy of Al-4Ti-0.005B), (trade mark of Xinchang Shuan Ning Machinery Co., Ltd. is Al-Sr to 0.1kg alterant
10commercially available product) make level Four aluminium liquid with 1000kg tri-grades of aluminium liquid mixing 10min;
E, at 700 DEG C, Pyatyi aluminium liquid is made with scarfing cinder in the surface that 0.5kg slag-cleaning agent (mass ratio of sodium-chlor, Repone K and sodium carbonate is 1:0.5:0.03) is spread on 1000kg level Four aluminium liquid
F, at 700 DEG C, 0.5kg slag-cleaning agent (mass ratio of sodium-chlor, Repone K and sodium carbonate is 1:0.5:0.03) is spread on the surface of 1000kg Pyatyi aluminium liquid, then passing into air pressure is that the nitrogen of 0.1Mpa carries out degassing processing with obtained wheel hub aluminium alloy A1.
The hydrogen richness of this wheel hub aluminium alloy, the content of each inclusion, shrinkability when solidifying and mobility parameter are in table 1.
Embodiment 3
A, being A356 by the 1000kg trade mark at 760 DEG C, aluminium ingot melting 3h makes elementary aluminium liquid;
B, at 760 DEG C, by 3g slag-cleaning agent (mass ratio of sodium-chlor, Repone K and sodium carbonate is 1:1.5:0.08) and 1000kg elementary aluminium liquid mixing 10min, then discharge slag make secondary aluminium liquid;
C, under the existence of 760 DEG C and nitrogen, by 4kg refining agent (mass ratio of sodium fluoroaluminate, Sodium Silicofluoride and carbon hexachloride is 1:0.2:0.03) and described secondary aluminium liquid mixing 20min, then leave standstill 6min, deslagging makes three grades of aluminium liquid;
D, at 760 DEG C, by 3kg fining agent (Dongguan City letter titanium metal material company limited the trade mark be the Al-Ti-B alloy of Al-4Ti-0.005B), (trade mark of Xinchang Shuan Ning Machinery Co., Ltd. is Al-Sr to 0.3kg alterant
10commercially available product) make level Four aluminium liquid with 1000kg tri-grades of aluminium liquid mixing 20min;
E, at 700-760 DEG C, Pyatyi aluminium liquid is made with scarfing cinder in the surface that 1.5kg slag-cleaning agent (mass ratio of sodium-chlor, Repone K and sodium carbonate is 1:1.5:0.08) is spread on 1000kg level Four aluminium liquid
F, at 760 DEG C, 1.5kg slag-cleaning agent (mass ratio of sodium-chlor, Repone K and sodium carbonate is 1:1.5:0.08) is spread on the surface of 1000kg Pyatyi aluminium liquid, then passing into air pressure is that the nitrogen of 0.2Mpa carries out degassing processing with obtained wheel hub aluminium alloy A3.
The hydrogen richness of this wheel hub aluminium alloy, the content of each inclusion, shrinkability when solidifying and mobility parameter are in table 1.
Embodiment 4
Obtained wheel hub aluminium alloy A4 is carried out according to the method for embodiment 1, unlike, be that the Al-Ti-B alloy of Al-4Ti-0.005B is changed to Al-Ti-C alloy by the trade mark, the hydrogen richness of this wheel hub aluminium alloy, the content of each inclusion, shrinkability when solidifying and mobility parameter are in table 1.
Embodiment 5
Obtained wheel hub aluminium alloy A5 is carried out according to the method for embodiment 1, unlike, be Al-Sr by the trade mark
10alloy be changed to Al-Sb
8alloy, the hydrogen richness of this wheel hub aluminium alloy, the content of each inclusion, shrinkability when solidifying and mobility parameter are in table 1.
Comparative example 1
Obtained wheel hub aluminium alloy B1 is carried out according to the method for embodiment 1, unlike, without step b, the hydrogen richness of this wheel hub aluminium alloy, the content of each inclusion, shrinkability when solidifying and mobility parameter are in table 1.
Comparative example 2
Obtained wheel hub aluminium alloy B2 is carried out according to the method for embodiment 1, unlike, without step c, the hydrogen richness of this wheel hub aluminium alloy, the content of each inclusion, shrinkability when solidifying and mobility parameter are in table 1.
Comparative example 3
Obtained wheel hub aluminium alloy B3 is carried out according to the method for embodiment 1, unlike, without steps d, the hydrogen richness of this wheel hub aluminium alloy, the content of each inclusion, shrinkability when solidifying and mobility parameter are in table 1.
Comparative example 4
Obtained wheel hub aluminium alloy B4 is carried out according to the method for embodiment 1, unlike, without step e, the hydrogen richness of this wheel hub aluminium alloy, the content of each inclusion, shrinkability when solidifying and mobility parameter are in table 1.
Comparative example 5
Obtained wheel hub aluminium alloy B5 is carried out according to the method for embodiment 1, unlike, without step f, the hydrogen richness of this wheel hub aluminium alloy, the content of each inclusion, shrinkability when solidifying and mobility parameter are in table 1.
Table 1
As seen from the above table, the content of the inclusion content inclusion in embodiment A 1-A5 is starkly lower than the content of the inclusion content inclusion in B1-B5, thus when making the solidifying of A1-A5, shrinkability (when solidifying, inotropic numerical value less expression shrinkability is more excellent) and mobility are obviously better than B1-B5; On the other hand, the data of the hydrogen richness in A1-A5 are starkly lower than the data of the hydrogen richness of B1-B5, thus make the quantity of pin hole on the aluminium alloy wheel hub that obtained by A1-A5 and cinder hole lower than the quantity of the pin hole on the aluminium alloy wheel hub obtained by B1-B5 and cinder hole, thus the quality of aluminium alloy wheel hub will inevitably be improve.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a preparation method for wheel hub aluminium alloy, is characterized in that, described preparation method comprises:
A, aluminium ingot is carried out melting make elementary aluminium liquid;
B, slag-cleaning agent to be mixed with described elementary aluminium liquid, then discharge slag and make secondary aluminium liquid;
C, under the existence of nitrogen, refining agent to be mixed with described secondary aluminium liquid, then leave standstill, deslagging makes three grades of aluminium liquid;
D, fining agent, alterant and described three grades of aluminium liquid are carried out being mixed and made into level Four aluminium liquid;
Pyatyi aluminium liquid is made with scarfing cinder in e, surface slag-cleaning agent being spread on described level Four aluminium liquid
F, slag-cleaning agent is spread on described Pyatyi aluminium liquid surface and carry out degassing processing with obtained wheel hub aluminium alloy;
Wherein, described aluminium ingot comprises element silicon, magnesium elements, titanium elements, ferro element, copper, zinc element, manganese element and aluminium element; Relative to the aluminium ingot of 100 weight parts, the content of described element silicon is 6.5-7.5 weight part, the content of described magnesium elements is 0.30-0.45 weight part, the content of described titanium elements is 0.08-0.20 weight part, the content of described ferro element is not more than 0.12 weight part, and the content of described copper is not more than 0.05 weight part, and the content of described zinc element is not more than 0.05 weight part, the content of described manganese element is not more than 0.05 weight part, and surplus is described aluminium element.
2. the preparation method of wheel hub aluminium alloy according to claim 1, wherein, in step a, described melting meets following condition: smelting temperature is 700-760 DEG C, and smelting time is 1-3h.
3. the preparation method of wheel hub aluminium alloy according to claim 1, wherein, in stepb, relative to the described elementary aluminium liquid of 100 weight parts, the consumption of described slag-cleaning agent is 0.2-0.3 weight part;
Preferably, in stepb, described mixing meets the following conditions: mixing temperature is 700-760 DEG C, and mixing time is 5-10min.
4. the preparation method of wheel hub aluminium alloy according to claim 1, wherein, in step c, relative to the described secondary aluminium liquid of 100 weight parts, the consumption of described refining agent is 0.3-0.4 weight part;
Preferably, in step c, described mixing meets the following conditions: mixing temperature is 700-760 DEG C, and mixing time is 10-20min;
More preferably, in step c, described leaving standstill meets the following conditions: mixing temperature is 700-760 DEG C, and mixing time is 4-6min;
Further preferably, in step c, described refining agent be selected from sodium fluoroaluminate, potassium fluoroaluminate, Sodium Silicofluoride, potassium silicofluoride and carbon hexachloride one or more.
5. the preparation method of wheel hub aluminium alloy according to claim 1, wherein, in steps d, relative to described three grades of aluminium liquid of 100 weight parts, the consumption of described fining agent is 0.1-0.3 weight part, and the consumption of described alterant is 0.01-0.03 weight part;
Preferably, in steps d, described mixing meets the following conditions: mixing temperature is 700-760 DEG C, and mixing time is 10-20min;
More preferably, in steps d, described fining agent is selected from Al-Ti-B alloy or Al-Ti-C alloy;
Further preferably, in steps d, described alterant is selected from Al-Sr
10alloy or Al-Sb
8alloy.
6. the preparation method of wheel hub aluminium alloy according to claim 1, wherein, in step e, relative to the described level Four aluminium liquid of 100 weight parts, the consumption of described slag-cleaning agent is 0.05-0.15 weight part.
7. the preparation method of wheel hub aluminium alloy according to claim 1, wherein, in step f, relative to the described level Four aluminium liquid of 100 weight parts, the consumption of described slag-cleaning agent is 0.05-0.15 weight part;
Preferably, in step f, described degassing processing is undertaken by passing into rare gas element in described Pyatyi aluminium liquid;
More preferably, in step f, described rare gas element is nitrogen and air pressure is 0.1-0.2Mpa.
8. the preparation method of the wheel hub aluminium alloy according to any one in claim 1-7, wherein, described slag-cleaning agent be selected from sodium-chlor, Repone K and sodium carbonate one or more.
9. a wheel hub aluminium alloy, is characterized in that, described wheel hub aluminium alloy is prepared from by the method described in any one in claim 1-8.
10. an aluminium alloy wheel hub, is characterized in that, described wheel hub is prepared from by wheel hub aluminium alloy according to claim 9.
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| CN107377939A (en) * | 2017-07-26 | 2017-11-24 | 泰安和新精工科技有限公司 | A kind of Low Pressure Die Casting of Aluminum Wheel Hub technical study method |
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| CN108290210A (en) * | 2015-11-02 | 2018-07-17 | 慕贝尔性能车轮有限公司 | Method for manufacturing light metal casting component and light metal casting component |
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| CN105925824A (en) * | 2016-06-24 | 2016-09-07 | 芜湖黄燕实业有限公司 | Aluminum alloy hub and preparation method thereof |
| CN107083504A (en) * | 2017-04-27 | 2017-08-22 | 柳州豪祥特科技有限公司 | The preparation method of aluminium alloy wheel hub |
| CN107142384A (en) * | 2017-04-27 | 2017-09-08 | 柳州豪祥特科技有限公司 | The preparation method of high-performance aluminium alloy wheel hub |
| CN107142386A (en) * | 2017-04-27 | 2017-09-08 | 柳州豪祥特科技有限公司 | Improve the method for aluminium alloy wheel hub internal structure |
| CN107142385A (en) * | 2017-04-27 | 2017-09-08 | 柳州豪祥特科技有限公司 | The processing technology of aluminium alloy wheel hub |
| CN107142384B (en) * | 2017-04-27 | 2019-01-11 | 柳州豪祥特科技有限公司 | The preparation method of high-performance aluminium alloy wheel hub |
| CN107083504B (en) * | 2017-04-27 | 2019-01-11 | 柳州豪祥特科技有限公司 | The preparation method of aluminium alloy wheel hub |
| CN107377939A (en) * | 2017-07-26 | 2017-11-24 | 泰安和新精工科技有限公司 | A kind of Low Pressure Die Casting of Aluminum Wheel Hub technical study method |
| CN108486426A (en) * | 2018-03-20 | 2018-09-04 | 山东交通职业学院 | Engine cylinder cover and casting method |
| CN108486426B (en) * | 2018-03-20 | 2019-11-15 | 山东交通职业学院 | Engine cylinder cover and casting method |
| CN114703390A (en) * | 2022-06-06 | 2022-07-05 | 中国航发北京航空材料研究院 | Refining agent and refining and purifying method of aluminum alloy cast on line by combining refining agent with argon |
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