CN104818398B - Wheel hub aluminium alloy and preparation method thereof and aluminium alloy wheel hub - Google Patents
Wheel hub aluminium alloy and preparation method thereof and aluminium alloy wheel hub Download PDFInfo
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 88
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 137
- 239000004411 aluminium Substances 0.000 claims abstract description 136
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 136
- 239000007788 liquid Substances 0.000 claims abstract description 112
- 239000012459 cleaning agent Substances 0.000 claims abstract description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003818 cinder Substances 0.000 claims abstract description 17
- 239000006025 fining agent Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000007670 refining Methods 0.000 claims abstract description 14
- 238000007872 degassing Methods 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 11
- 239000002893 slag Substances 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 22
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 22
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 12
- 239000001103 potassium chloride Substances 0.000 claims description 11
- 235000011164 potassium chloride Nutrition 0.000 claims description 11
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 11
- 239000011780 sodium chloride Substances 0.000 claims description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 238000010348 incorporation Methods 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 229910000521 B alloy Inorganic materials 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 claims description 5
- 229910001610 cryolite Inorganic materials 0.000 claims description 5
- VHHHONWQHHHLTI-UHFFFAOYSA-N hexachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)Cl VHHHONWQHHHLTI-UHFFFAOYSA-N 0.000 claims description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910001339 C alloy Inorganic materials 0.000 claims description 3
- -1 Zn-ef ficiency Chemical compound 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 239000010813 municipal solid waste Substances 0.000 abstract description 41
- 238000007711 solidification Methods 0.000 abstract description 18
- 230000008023 solidification Effects 0.000 abstract description 18
- 229910021364 Al-Si alloy Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 description 36
- 229910052739 hydrogen Inorganic materials 0.000 description 36
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 35
- 239000000463 material Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 210000001787 dendrite Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
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Abstract
The invention discloses a kind of wheel hub aluminium alloy and preparation method thereof and aluminium alloy wheel hub, the preparation method includes：A, by aluminium ingot progress melting primary aluminium liquid is made；B, slag-cleaning agent mixed with the primary aluminium liquid, be then discharged out slag and two grades of aluminium liquids are made；C, in the presence of nitrogen, refining agent is mixed with two grades of aluminium liquids, then stand, deslagging three-level aluminium liquid is made；D, fining agent, alterant and the three-level aluminium liquid carried out being mixed and made into level Four aluminium liquid；E, slag-cleaning agent is spread on to the surface of the level Four aluminium liquid Pyatyi aluminium liquid f is made, slag-cleaning agent is spread on into the surface of the Pyatyi aluminium liquid and carries out degassing processing with scarfing cinder wheel hub aluminium alloy is made.The wheel hub Dissolved H in Liquid Al-Si Alloy content and the content of field trash are relatively low so that the wheel hub aluminium alloy has shrinkage when excellent mobility and solidification, and then cause by the way that surface of aluminum alloy hub made from the wheel hub aluminium alloy is pin-free and cinder hole.
Description
Technical field
The present invention relates to aluminium alloy, in particular it relates to a kind of wheel hub aluminium alloy and preparation method thereof and aluminium alloy wheel hub.
Background technology
The processing method of existing aluminium alloy wheel hub includes：Molten refined, casting and the machining of aluminium ingot.Melting
The quality of aluminium liquid after refining directly determines the quality of aluminium alloy wheel hub, and the quality of aluminium liquid is main to be determined by four aspects：1)
Hydrogen content in aluminium liquid；2) in aluminium liquid field trash content.
Wherein, the content of field trash determines the pin hole feelings of surface of aluminum alloy hub in the hydrogen content and aluminium liquid in aluminium liquid
Shrinkage when condition, the mobility of aluminium liquid and solidification.Once the too high levels of hydrogen in aluminium liquid, then hydrogen atom is eventually with hydrogen
Form discharge, then more pin hole will certainly be formed in aluminium alloy wheel hub, is learnt according to pertinent literature, is only contained in aluminium liquid
Hydrogen amount is less than 0.04cm3During/100g, surface of aluminum alloy hub does not just appear in pin hole.
Main inclusions are γ-Al in aluminium liquid2O3、α-Al2O3、SiO2, MgO and TiO2, other field trashes are seldom.One side
Face, the content of field trash is played to aluminium alloy wheel hub cinder hole in the effect of substantivity, casting process, and the aluminium liquid flowed through will be in mould
Very thin one and half curdled appearance is first solidified on surface, α (Al) dendrite is first generated, dendrite can block field trash, and field trash is all again
High-melting-point substances, proportion is all than aluminium liquid weight, and field trash will be collided in flow process, agglomeration, in the surface shape of mould
Into big cinder hole.On the other hand, the content of field trash mobility also to aluminium liquid and shrinkage during solidification are played to closing weight
The effect wanted, when the too high levels of field trash, then can directly reduce the mobility of aluminium liquid so that aluminium liquid is difficult to fill with casting mould,
Shrinkage during solidification can be also improved simultaneously, then the wheel hub for directly resulting in casting is also easy to produce deformation.
The content of hydrogen content and field trash in existing aluminium liquid is generally higher, directly affects the matter of aluminium alloy wheel hub
Amount, causes the low qualified of aluminium alloy wheel hub, and then increase production cost.
The content of the invention
It is an object of the invention to provide a kind of wheel hub aluminium alloy and preparation method thereof and aluminium alloy wheel hub, the wheel hub aluminium alloy
The content of middle hydrogen content and field trash is relatively low so that the wheel hub aluminium alloy has contraction when excellent mobility and solidification
Property, and then cause by the way that surface of aluminum alloy hub made from the wheel hub aluminium alloy is pin-free and cinder hole.
To achieve these goals, the invention provides the invention provides a kind of preparation method of wheel hub aluminium alloy, institute
Stating preparation method includes：
A, by aluminium ingot progress melting primary aluminium liquid is made；
B, slag-cleaning agent mixed with the primary aluminium liquid, be then discharged out slag and two grades of aluminium liquids are made；
C, in the presence of nitrogen, refining agent is mixed with two grades of aluminium liquids, then stand, deslagging three-level aluminium is made
Liquid；
D, fining agent, alterant and the three-level aluminium liquid carried out being mixed and made into level Four aluminium liquid；
Pyatyi aluminium liquid is made with scarfing cinder in e, the surface that slag-cleaning agent is spread on to the level Four aluminium liquid
F, by slag-cleaning agent be spread on the surface of the Pyatyi aluminium liquid and carry out degassing processing be made wheel hub aluminium alloy；
Wherein, the aluminium ingot includes element silicon, magnesium elements, titanium elements, ferro element, copper, Zn-ef ficiency, manganese element and aluminium
Element；Relative to the aluminium ingot of 100 parts by weight, the content of the element silicon is 6.5-7.5 parts by weight, and the content of the magnesium elements is
0.30-0.45 parts by weight, the content of the titanium elements is 0.08-0.20 parts by weight, and the content of the ferro element is not more than 0.12
Parts by weight, the content of the copper is not more than 0.05 parts by weight, and the content of the Zn-ef ficiency is not more than 0.05 parts by weight, described
The content of manganese element is not more than 0.05 parts by weight, and surplus is the aluminium element.
Present invention provides a kind of wheel hub aluminium alloy, the wheel hub aluminium alloy is prepared from by above-mentioned method.
Present invention also offers a kind of aluminium alloy wheel hub, the wheel hub is prepared from by above-mentioned wheel hub aluminium alloy.
By above-mentioned technical proposal, the present invention is by forming primary aluminium liquid after aluminium ingot is melted, then to primary aluminium liquid
Middle addition slag-cleaning agent carries out the scarfing cinder reduction field trash of first time to form two grades of aluminium liquids；In the atmosphere of nitrogen, further
Two grades of aluminium liquids are carried out to remove Slag treatment, but the processing of degasification has also been carried out while slagging-off, and then prevent oxygen to aluminium liquid
Oxidation, vapor and aluminium liquid are reacted to produce hydrogen, so as to reduce the hydrogen content in aluminium liquid；By fining agent to three-level aluminium
Liquid carries out alloy refinement, so that aluminium liquid can refine α (Al) in crystallization, and then improves the elongation percentage of aluminium alloy, and becomes
Matter agent can refining eutectic silicon, because the particle of Eutectic Silicon in Al-Si Cast Alloys is smaller, and then avoid the surface of aluminium alloy wheel hub from pin hole occur.Due to
The reaction of fining agent, alterant and three-level aluminium liquid causes there is more field trash in level Four aluminium liquid, therefore needs again by clear
Slag agent carries out scarfing cinder processing to level Four aluminium liquid.Scarfing cinder processing and degassing processing are carried out simultaneously finally by Pyatyi aluminium liquid, so that
So that the field trash and hydrogen content that are made in wheel hub aluminium alloy are preferably minimized value, so that it is excellent to ensure that the wheel hub aluminium alloy has
Shrinkage when different mobility and solidification, and then cause pin-free by surface of aluminum alloy hub made from the wheel hub aluminium alloy
And cinder hole.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Embodiment
The embodiment to the present invention is described in detail below.It should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The invention provides a kind of preparation method of wheel hub aluminium alloy, the preparation method includes：
A, by aluminium ingot progress melting primary aluminium liquid is made；
B, slag-cleaning agent mixed with the primary aluminium liquid, be then discharged out slag and two grades of aluminium liquids are made；
C, in the presence of nitrogen, refining agent is mixed with two grades of aluminium liquids, then stand, deslagging three-level aluminium is made
Liquid；
D, fining agent, alterant and the three-level aluminium liquid carried out being mixed and made into level Four aluminium liquid；
Pyatyi aluminium liquid is made with scarfing cinder in e, the surface that slag-cleaning agent is spread on to the level Four aluminium liquid
F, by slag-cleaning agent be spread on the surface of the Pyatyi aluminium liquid and carry out degassing processing be made wheel hub aluminium alloy；
Wherein, the aluminium ingot includes element silicon, magnesium elements, titanium elements, ferro element, copper, Zn-ef ficiency, manganese element and aluminium
Element；Relative to the aluminium ingot of 100 parts by weight, the content of the element silicon is 6.5-7.5 parts by weight, and the content of the magnesium elements is
0.30-0.45 parts by weight, the content of the titanium elements is 0.08-0.20 parts by weight, and the content of the ferro element is not more than 0.12
Parts by weight, the content of the copper is not more than 0.05 parts by weight, and the content of the Zn-ef ficiency is not more than 0.05 parts by weight, described
The content of manganese element is not more than 0.05 parts by weight, and surplus is the aluminium element.
In the step a of the present invention, the actual conditions of the melting can be selected in wide scope, but in order to make
The hydrogen content of the wheel hub aluminium alloy obtained and the content of field trash are controlled in relatively low scope, it is preferable that in step a, institute
State melting and meet following condition：Smelting temperature is 700-760 DEG C, and smelting time is 1-3h.
In the step b of the present invention, the specific consumption of each material can be selected in wide scope, but in order to be made
Wheel hub aluminium alloy hydrogen content and field trash content control in relatively low scope, it is preferable that in stepb, relatively
In the primary aluminium liquid of 100 parts by weight, the consumption of the slag-cleaning agent is 0.2-0.3 parts by weight；
In the step b of the present invention, the actual conditions of mixing can be selected in wide scope, but in order to by made from
The hydrogen content of wheel hub aluminium alloy and the content of field trash are controlled in relatively low scope, it is preferable that in stepb, described mixed
Conjunction meets following condition：Mixing temperature is 700-760 DEG C, and incorporation time is 5-10min.
In the step c of the present invention, the specific consumption of each material can be selected in wide scope, but in order to be made
Wheel hub aluminium alloy hydrogen content and field trash content control in relatively low scope, it is preferable that in step c, relatively
In two grades of aluminium liquids of 100 parts by weight, the consumption of the refining agent is 0.3-0.4 parts by weight.
In the step c of the present invention, the actual conditions of mixing can be selected in wide scope, but in order to by made from
The hydrogen content of wheel hub aluminium alloy and the content of field trash are controlled in relatively low scope, it is preferable that in step c, described mixed
Conjunction meets following condition：Mixing temperature is 700-760 DEG C, and incorporation time is 10-20min.
In the step c of the present invention, the actual conditions of standing can be selected in wide scope, but in order to by made from
The hydrogen content of wheel hub aluminium alloy and the content of field trash are controlled in relatively low scope, it is preferable that described quiet in step c
Put and meet following condition：Mixing temperature is 700-760 DEG C, and incorporation time is 4-6min.
In the step c of the present invention, the specific species of refining agent can be selected in wide scope, but in order to be made
Wheel hub aluminium alloy hydrogen content and field trash content control in relatively low scope, it is preferable that it is described in step c
One or more of the refining agent in cryolite, potassium fluoroaluminate, prodan, potassium fluosilicate and carbon hexachloride.
In the step d of the present invention, the specific consumption of each material can be selected in wide scope, but in order to be made
Wheel hub aluminium alloy hydrogen content and field trash content control in relatively low scope, it is preferable that in step d, relatively
In the three-level aluminium liquid of 100 parts by weight, the consumption of the fining agent is 0.1-0.3 parts by weight, and the consumption of the alterant is
0.01-0.03 parts by weight.
In the step d of the present invention, the actual conditions of mixing can be selected in wide scope, but in order to by made from
The hydrogen content of wheel hub aluminium alloy and the content of field trash are controlled in relatively low scope, it is preferable that in step d, described mixed
Conjunction meets following condition：Mixing temperature is 700-760 DEG C, and incorporation time is 10-20min.
In the step d of the present invention, the specific species of fining agent can be selected in wide scope, but in order to be made
Wheel hub aluminium alloy hydrogen content and field trash content control in relatively low scope, it is preferable that it is described in step d
Fining agent is selected from Al-Ti-B alloys or Al-Ti-C alloys.
In the step d of the present invention, the specific species of alterant can be selected in wide scope, but in order to be made
Wheel hub aluminium alloy hydrogen content and field trash content control in relatively low scope, it is preferable that it is described in step d
Alterant is selected from Al-Sr10Alloy or Al-Sb8Alloy.
In the step e of the present invention, the specific consumption of each material can be selected in wide scope, but in order to be made
Wheel hub aluminium alloy hydrogen content and field trash content control in relatively low scope, it is preferable that in step e, relatively
In the level Four aluminium liquid of 100 parts by weight, the consumption of the slag-cleaning agent is 0.05-0.15 parts by weight.
In the step f of the present invention, the specific consumption of each material can be selected in wide scope, but in order to be made
Wheel hub aluminium alloy hydrogen content and field trash content control in relatively low scope, it is preferable that in step f, relatively
In the level Four aluminium liquid of 100 parts by weight, the consumption of the slag-cleaning agent is 0.05-0.15 parts by weight.
In the step f of the present invention, the actual conditions of degassing processing can be selected in wide scope, but in order to make
The hydrogen content of the wheel hub aluminium alloy obtained and the content of field trash are controlled in relatively low scope, it is preferable that in step f, institute
State degassing processing and carried out by being passed through inert gas into the Pyatyi aluminium liquid.It is highly preferred that in step f, the indifferent gas
Body is nitrogen and air pressure is 0.1-0.2MPa.
In the present invention, the specific consumption of each material can be selected in wide scope, but in order to by obtained wheel hub
The content of the hydrogen content of aluminium alloy and field trash is controlled in relatively low scope, it is preferable that the slag-cleaning agent be selected from sodium chloride,
One or more in potassium chloride and sodium carbonate.
Present invention provides a kind of wheel hub aluminium alloy, the wheel hub aluminium alloy is prepared from by above-mentioned method.
Present invention also offers a kind of aluminium alloy wheel hub, the wheel hub is prepared from by above-mentioned wheel hub aluminium alloy.
The present invention will be described in detail by way of examples below.The aluminium ingot used in following examples is that Jiangsu really surpasses
The trade mark of Aluminum Co., Ltd is A356 commercially available product, and fining agent is that the trade mark of the great titanium metal material Co., Ltd of Dongguan City is
Al-4Ti-0.005B Al-Ti-B alloy, alterant is that the trade mark of Xinchang Shuan Ning Machinery Co., Ltd.s is Al-Sr10It is commercially available
Product, other raw materials are conventional commercially available product.
Embodiment 1
A, at 740 DEG C primary aluminium liquid is made for A356 aluminium ingot melting 2h in the 1000kg trades mark；
B, at 740 DEG C, by 2.5g slag-cleaning agents (mass ratio of sodium chloride, potassium chloride and sodium carbonate be 1：0.8：0.05) with
1000kg primary aluminium liquid mixing 8min, are then discharged out slag and two grades of aluminium liquids are made；
C, in the presence of 740 DEG C and nitrogen, by 3.5kg refining agents (cryolite, prodan and carbon hexachloride
Mass ratio be 1：1.5：0.02) 15min is mixed with two grades of aluminium liquids, then stands 5min, deslagging and three-level aluminium liquid is made；
D, at 740 DEG C, by 2kg fining agents, (trade mark of Dongguan City letter titanium metal material Co., Ltd is Al-4Ti-
0.005B Al-Ti-B alloy), 0.2kg alterants (trade mark of Xinchang Shuan Ning Machinery Co., Ltd.s be Al-Sr10Commercially available product)
15min is mixed with 1000kg three-level aluminium liquids, and level Four aluminium liquid is made；
E, at 740 DEG C, by 1kg slag-cleaning agents (mass ratio of sodium chloride, potassium chloride and sodium carbonate be 1：0.8：0.05) spread
Pyatyi aluminium liquid is made with scarfing cinder in the surface of 1000kg level Four aluminium liquids
F, at 740 DEG C, by 1kg slag-cleaning agents (mass ratio of sodium chloride, potassium chloride and sodium carbonate be 1：0.8：0.05) spread
In the surface of 1000kg Pyatyi aluminium liquids, then pass to the nitrogen that air pressure is 0.15MPa and carry out degassing processing the conjunction of wheel hub aluminium is made
Golden A1.
Shrinkage and mobility parameter when the hydrogen content of the wheel hub aluminium alloy, the content of each field trash, solidification are shown in Table
1。
Embodiment 2
A, at 700 DEG C primary aluminium liquid is made for A356 aluminium ingot melting 1h in the 1000kg trades mark；
B, at 700 DEG C, by 2g slag-cleaning agents (mass ratio of sodium chloride, potassium chloride and sodium carbonate be 1：0.5：0.03) with
1000kg primary aluminium liquid mixing 5min, are then discharged out slag and two grades of aluminium liquids are made；
C, in the presence of 700 DEG C and nitrogen, by 3kg refining agents (cryolite, prodan and carbon hexachloride
Mass ratio is 1：1：0.01) 10min is mixed with two grades of aluminium liquids, then stands 4min, deslagging and three-level aluminium liquid is made；
D, at 700 DEG C, by 1kg fining agents, (trade mark of Dongguan City letter titanium metal material Co., Ltd is Al-4Ti-
0.005B Al-Ti-B alloy), 0.1kg alterants (trade mark of Xinchang Shuan Ning Machinery Co., Ltd.s be Al-Sr10Commercially available product)
10min is mixed with 1000kg three-level aluminium liquids, and level Four aluminium liquid is made；
E, at 700 DEG C, by 0.5kg slag-cleaning agents (mass ratio of sodium chloride, potassium chloride and sodium carbonate be 1：0.5：0.03)
Pyatyi aluminium liquid is made with scarfing cinder in the surface for being spread on 1000kg level Four aluminium liquids
F, at 700 DEG C, by 0.5kg slag-cleaning agents (mass ratio of sodium chloride, potassium chloride and sodium carbonate be 1：0.5：0.03)
The surface of 1000kg Pyatyi aluminium liquids is spread on, the nitrogen that air pressure is 0.1MPa is then passed to and carries out degassing processing the conjunction of wheel hub aluminium is made
Golden A1.
Shrinkage and mobility parameter when the hydrogen content of the wheel hub aluminium alloy, the content of each field trash, solidification are shown in Table
1。
Embodiment 3
A, at 760 DEG C primary aluminium liquid is made for A356 aluminium ingot melting 3h in the 1000kg trades mark；
B, at 760 DEG C, by 3g slag-cleaning agents (mass ratio of sodium chloride, potassium chloride and sodium carbonate be 1：1.5：0.08) with
1000kg primary aluminium liquid mixing 10min, are then discharged out slag and two grades of aluminium liquids are made；
C, in the presence of 760 DEG C and nitrogen, by 4kg refining agents (cryolite, prodan and carbon hexachloride
Mass ratio is 1：0.2：0.03) 20min is mixed with two grades of aluminium liquids, then stands 6min, deslagging and three-level aluminium liquid is made；
D, at 760 DEG C, by 3kg fining agents, (trade mark of Dongguan City letter titanium metal material Co., Ltd is Al-4Ti-
0.005B Al-Ti-B alloy), 0.3kg alterants (trade mark of Xinchang Shuan Ning Machinery Co., Ltd.s be Al-Sr10Commercially available product)
20min is mixed with 1000kg three-level aluminium liquids, and level Four aluminium liquid is made；
E, at 700-760 DEG C, by 1.5kg slag-cleaning agents (mass ratio of sodium chloride, potassium chloride and sodium carbonate be 1：1.5：
0.08) Pyatyi aluminium liquid is made with scarfing cinder in the surface for being spread on 1000kg level Four aluminium liquids
F, at 760 DEG C, by 1.5kg slag-cleaning agents (mass ratio of sodium chloride, potassium chloride and sodium carbonate be 1：1.5：0.08)
The surface of 1000kg Pyatyi aluminium liquids is spread on, the nitrogen that air pressure is 0.2MPa is then passed to and carries out degassing processing the conjunction of wheel hub aluminium is made
Golden A3.
Shrinkage and mobility parameter when the hydrogen content of the wheel hub aluminium alloy, the content of each field trash, solidification are shown in Table
1。
Embodiment 4
Method according to embodiment 1 carries out that wheel hub aluminium alloy A4 is made, unlike, it is Al-4Ti-0.005B by the trade mark
Al-Ti-B alloy be changed to Al-Ti-C alloys, the hydrogen content of the wheel hub aluminium alloy, the content of each field trash, solidification when contraction
Property and mobility parameter are shown in Table 1.
Embodiment 5
Method according to embodiment 1 carries out that wheel hub aluminium alloy A5 is made, unlike, it is Al-Sr by the trade mark10Alloy change
For Al-Sb8Alloy, shrinkage and mobility parameter when the hydrogen content of the wheel hub aluminium alloy, the content of each field trash, solidification
It is shown in Table 1.
Comparative example 1
Method according to embodiment 1 carries out that wheel hub aluminium alloy B1 is made, unlike, no step b, the wheel hub aluminium alloy
Shrinkage and mobility parameter when hydrogen content, the content of each field trash, solidification are shown in Table 1.
Comparative example 2
Method according to embodiment 1 carries out that wheel hub aluminium alloy B2 is made, unlike, no step c, the wheel hub aluminium alloy
Shrinkage and mobility parameter when hydrogen content, the content of each field trash, solidification are shown in Table 1.
Comparative example 3
Method according to embodiment 1 carries out that wheel hub aluminium alloy B3 is made, unlike, no step d, the wheel hub aluminium alloy
Shrinkage and mobility parameter when hydrogen content, the content of each field trash, solidification are shown in Table 1.
Comparative example 4
Method according to embodiment 1 carries out that wheel hub aluminium alloy B4 is made, unlike, no step e, the wheel hub aluminium alloy
Shrinkage and mobility parameter when hydrogen content, the content of each field trash, solidification are shown in Table 1.
Comparative example 5
Method according to embodiment 1 carries out that wheel hub aluminium alloy B5 is made, unlike, no step f, the wheel hub aluminium alloy
Shrinkage and mobility parameter when hydrogen content, the content of each field trash, solidification are shown in Table 1.
Table 1
As seen from the above table, the content of the inclusion content field trash in embodiment A1-A5 is significantly lower than being mingled with B1-B5
The content of thing content field trash the, so that shrinkage (numerical value of shrinkage smaller expression contraction during solidification during A1-A5 solidification
Property is more excellent) and mobility be substantially better than B1-B5；On the other hand, the data of the hydrogen content in A1-A5 are significantly lower than B1-B5
Hydrogen content data so that the quantity of the pin hole and cinder hole as made from A1-A5 on aluminium alloy wheel hub will necessarily be low
In pin hole and the quantity of cinder hole as made from B1-B5 on aluminium alloy wheel hub, so as to improve the quality of aluminium alloy wheel hub.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (5)
1. a kind of preparation method of wheel hub aluminium alloy, it is characterised in that the preparation method includes：
A, by aluminium ingot progress melting primary aluminium liquid is made；
B, slag-cleaning agent mixed with the primary aluminium liquid, be then discharged out slag and two grades of aluminium liquids are made；
C, in the presence of nitrogen, refining agent is mixed with two grades of aluminium liquids, then stand, deslagging three-level aluminium liquid is made；
D, fining agent, alterant and the three-level aluminium liquid carried out being mixed and made into level Four aluminium liquid；
Pyatyi aluminium liquid is made with scarfing cinder in e, the surface that slag-cleaning agent is spread on to the level Four aluminium liquid
F, by slag-cleaning agent be spread on the surface of the Pyatyi aluminium liquid and carry out degassing processing be made wheel hub aluminium alloy；
Wherein, the aluminium ingot includes element silicon, magnesium elements, titanium elements, ferro element, copper, Zn-ef ficiency, manganese element and aluminium member
Element；Relative to the aluminium ingot of 100 parts by weight, the content of the element silicon is 6.5-7.5 parts by weight, and the content of the magnesium elements is
0.30-0.45 parts by weight, the content of the titanium elements is 0.08-0.20 parts by weight, and the content of the ferro element is not more than 0.12
Parts by weight, the content of the copper is not more than 0.05 parts by weight, and the content of the Zn-ef ficiency is not more than 0.05 parts by weight, described
The content of manganese element is not more than 0.05 parts by weight, and surplus is the aluminium element；In stepb, relative to described in 100 parts by weight
Primary aluminium liquid, the consumption of the slag-cleaning agent is 0.2-0.3 parts by weight；In step c, relative to described two grades of 100 parts by weight
Aluminium liquid, the consumption of the refining agent is 0.3-0.4 parts by weight；In step d, relative to the three-level aluminium liquid of 100 parts by weight,
The consumption of the fining agent is 0.1-0.3 parts by weight, and the consumption of the alterant is 0.01-0.03 parts by weight；In step e,
Relative to the level Four aluminium liquid of 100 parts by weight, the consumption of the slag-cleaning agent is 0.05-0.15 parts by weight；In step f, phase
For the level Four aluminium liquid of 100 parts by weight, the consumption of the slag-cleaning agent is 0.05-0.15 parts by weight；The refining agent is selected from
One or more in cryolite, potassium fluoroaluminate, prodan, potassium fluosilicate and carbon hexachloride, the fining agent is selected from Al-
Ti-B alloys or Al-Ti-C alloys, the alterant are selected from Al-Sr10Alloy or Al-Sb8Alloy, the slag-cleaning agent is selected from
One or more in sodium chloride, potassium chloride and sodium carbonate；In step a, the melting meets following condition：Smelting temperature is
700-760 DEG C, smelting time is 1-3h；In stepb, the mixing meets following condition：Mixing temperature is 700-760 DEG C,
Incorporation time is 5-10min；In step c, the mixing meets following condition：Mixing temperature is 700-760 DEG C, incorporation time
For 10-20min；In step c, the standing meets following condition：Mixing temperature is 700-760 DEG C, and incorporation time is 4-
6min；In step d, the mixing meets following condition：Mixing temperature is 700-760 DEG C, and incorporation time is 10-20min.
2. the preparation method of wheel hub aluminium alloy according to claim 1, wherein, in step f, the degassing processing passes through
Inert gas progress is passed through into the Pyatyi aluminium liquid.
3. the preparation method of wheel hub aluminium alloy according to claim 2, wherein, in step f, the inert gas is nitrogen
Gas and air pressure are 0.1-0.2MPa.
4. a kind of wheel hub aluminium alloy, it is characterised in that the wheel hub aluminium alloy passes through described in any one in claim 1-3
Method be prepared from.
5. a kind of aluminium alloy wheel hub, it is characterised in that the wheel hub is by the wheel hub aluminium alloy preparation described in claim 4
Into.
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| EP3162460A1 (en) * | 2015-11-02 | 2017-05-03 | Mubea Performance Wheels GmbH | Light metal casting part and method of its production |
| CN106086531B (en) * | 2016-06-16 | 2018-09-21 | 芜湖黄燕实业有限公司 | Shock resistance aluminium alloy and preparation method thereof for automotive hub |
| CN106399726B (en) * | 2016-06-16 | 2018-09-21 | 芜湖黄燕实业有限公司 | Shock resistance aluminium alloy automobile hub and preparation method thereof |
| CN106086482B (en) * | 2016-06-16 | 2018-11-23 | 芜湖黄燕实业有限公司 | High-strength aluminum alloy automotive hub and preparation method thereof |
| 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 |
| CN107142385B (en) * | 2017-04-27 | 2019-01-15 | 柳州豪祥特科技有限公司 | The processing technology of aluminium alloy wheel hub |
| CN107142386B (en) * | 2017-04-27 | 2019-01-15 | 柳州豪祥特科技有限公司 | Improve the method for aluminium alloy wheel hub internal structure |
| 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 |
| CN108486426B (en) * | 2018-03-20 | 2019-11-15 | 山东交通职业学院 | Engine cylinder cover and casting method |
| CN114703390B (en) * | 2022-06-06 | 2022-09-09 | 中国航发北京航空材料研究院 | A kind of refining agent and its combined on-line casting aluminum alloy refining and purification method with argon |
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| CN102925763A (en) * | 2011-08-11 | 2013-02-13 | 赵凯志 | Aluminum alloy automobile wheel hub composite reinforcement technology |
| CN102936675A (en) * | 2011-08-15 | 2013-02-20 | 赵凯志 | High-toughness lightweight alloy material used for automobile hubs and preparation method thereof |
| CN102952957A (en) * | 2011-08-25 | 2013-03-06 | 金刚 | Grain refiner and application of grain refiner in aluminum alloy wheel hub |
| CN103374673A (en) * | 2012-04-24 | 2013-10-30 | 台山市国际交通器材配件有限公司 | Formula for casting aluminum alloy wheel hubs |
| CN103173643B (en) * | 2013-02-01 | 2015-05-13 | 天津立中合金集团有限公司 | Novel secondary aluminum modifying refiner and method for smelting secondary aluminum by utilizing refiner |
| CN103695737A (en) * | 2013-08-14 | 2014-04-02 | 秦皇岛开发区美铝合金有限公司 | Production process of aluminium alloy casting rod specially used for Ford automobile rotary-swaged hub decorative rings |
| CN103695731A (en) * | 2013-08-14 | 2014-04-02 | 秦皇岛开发区美铝合金有限公司 | Production process of aluminium alloy specially used for automobile hubs in salt damage regions |
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