CN106048473A - Aluminum alloy material used for automobile hub and casting method - Google Patents
Aluminum alloy material used for automobile hub and casting method Download PDFInfo
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- CN106048473A CN106048473A CN201610488875.XA CN201610488875A CN106048473A CN 106048473 A CN106048473 A CN 106048473A CN 201610488875 A CN201610488875 A CN 201610488875A CN 106048473 A CN106048473 A CN 106048473A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
- C22C49/06—Aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/04—Casting by dipping
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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Abstract
The invention belongs to the field of automobile hubs, and particularly relates to an aluminum alloy material used for an automobile hub and a casting method. The aluminum alloy material is prepared from, by mass percent, 5%-8% of silicon, 3%-8% of magnesium, 0.01%-0.03% of copper, 0.01%-0.02% of zinc, 3%-5% of manganese, 0.5%-3% of chromium, 1%-8% of carbon fiber, 1%-5% of potassium titanate and the balance aluminum. By means of the aluminum alloy material and the casting method, the comprehensive mechanical property of the aluminum alloy hub is effectively improved, and the prepared aluminum alloy hub is uniform in component and free of local defects.
Description
Technical field
The invention belongs to automotive hub field, a kind of aluminum alloy materials for automotive hub and casting method.
Background technology
Aluminium alloy wheel hub have lightweight, energy-saving and cost-reducing, price is low, surface quality is high, thermal diffusivity is good, be prone to molding, subtract
The advantages such as performance of shaking is good, have a wide range of applications at automotive field.But along with the fast development of auto industry, to aluminium alloy wheel hub
Performance requirement improve constantly the most therewith, existing aluminium alloy wheel hub there is also some problems, such as insufficient strength, heavier-weight,
Poor processability, poor radiation, the problems such as Metamorphism treatment effect is limited, and casting quality is unstable, accordingly, it would be desirable to improve further
The combination property of wheel hub aluminium alloy.
For solving above-mentioned technical problem, there is now related art scheme, as Chinese patent CN105671463A discloses " one
Plant carbon fiber whisker and strengthen aluminium alloy wheel hub and preparation method thereof ", describe described aluminium alloy wheel hub in that patent according to weight
Amount percentages, is made up of following components: carbon fiber whisker 8～14%, silicon 12～16%, strontium 1.0～1.5%, tantalum 0.12～
0.18%, magnesium 2.0～2.8%, manganese 1.8～2.4%, chromium 0.40～0.56% and the aluminum of surplus；Dispensing, fusing, atomization, obtain aluminium alloy
Powder；Ball mill mixing, isostatic cool pressing system, the demoulding, jacket processes, then carries out temperature elevation and keep pressure process, obtains blank；Heating, rolling, forging
Pressure, mould pressing obtains wheel hub blank；Thermally treated, machining and surface process, obtain wheel hub finished product.But it there is problems of
Relatively costly, and complex process, in preparation process, it is susceptible to oxidation simultaneously.Also there is Chinese patent CN105525157A open
A kind of " a kind of aluminium alloy automobile hub casting technique ", comprises the steps: a, Metal Melting: use Al-Si-Mg ternary alloy three-partalloy
Aluminium is smelted into aluminium alloy；B, cast: using low-pressure casting, pouring temperature controls at 600-700 DEG C, and mold filling pressure is 0.02-
0.03MPa, filling time 7-9s, solidification dwell pressure is 0.05-0.06MPa, and the dwell time is 8-10min, after pressure release cooling
The demoulding.But aforesaid way does not the most imitate control aluminium alloy component segregation in casting process, finally makes aluminium alloy wheel hub
Performance is the best, local defect easily occurs.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of aluminum alloy materials for automotive hub and casting method,
It is effectively increased the comprehensive mechanical property of aluminium alloy wheel hub, and the aluminium alloy wheel hub composition prepared is uniform, lacks without local
Fall into.
In order to realize above-mentioned technical purpose, the concrete technical scheme that the present invention takes is, a kind of for automotive hub
Aluminum alloy materials, by weight/mass percentage composition, is prepared from by following component:
Silicon 5%-8%
Magnesium 3%-8%
Copper 0.01%-0.03%
Zinc 0.01%-0.02%
Manganese 3%-5%
Chromium 0.5%-3%
Carbon fiber 1%-8%
Potassium titanate 1%-5%,
Surplus is aluminum.
The technical scheme improved as the present invention, by weight/mass percentage composition, is made up of following component:
Silicon 6%-7%
Magnesium 5%-7%
Copper 0.01%-0.02%
Zinc 0.01%-0.02%
Manganese 4%-5%
Chromium 0.5%-1%
Carbon fiber 1%-3%
Potassium titanate 1%-2%,
Surplus is aluminum.
Another object of the present invention is to provide the preparation method of a kind of aluminum alloy materials for wheel hub, its feature exists
In, comprise the steps: a, by above-mentioned mass percent, weigh each component raw material；B, at casting mould inner surface Cast-in-place hardfacing
Coating, coating half capable person's carbon fiber to be cast is layed in cast paint surface；C, by magnesium, copper, zinc, manganese, chromium, potassium titanate and aluminum
Powder mix homogeneously also grinds to form the mixed-powder of a size of 1um-1.5um；D, that mixed-powder is heated to mixed-powder is the most melted,
Casting mould is heated to 800 DEG C-900 DEG C, allows casting mould be in temperature constant state by melted mixed-powder with 0.61-0.68m/
The poring rate of s is cast in casting mould；After e, casting complete immediately at sprue gate to the casting mould being under constant temperature
Pressurizeing, pressing force is 0.01-0.015MPa, and the pressurization retention time is 1-1.5h；F, casting mould is carried out staged
Cooling, after the first stage is for being cooled to 200-300 DEG C by casting mould, constant temperature 3-5h, second stage is that casting mould is natural
It is cooled to room temperature；G, the demoulding process, and workpiece is removed burr both wheel hub product.
The technical scheme improved as the present invention, also includes wheel hub product is carried out surface Hardening Treatment.
As the present invention improve technical scheme, the described first stage for casting mould is cooled to 200-300 DEG C, specifically
Cool down in water or in cooling oil to room temperature for casting mould is put into.
Compared with prior art, the invention has the beneficial effects as follows:
Instant component is scientific and reasonable, and formula is simple, easily implements, by the mould undercoating in conservative control casting process,
Casting pressure and the casting type of cooling so that alloy crystallization is uniformly, intensity is high, corrosion-resistant, impact resistance, heat-resist, depletion of QI
Bubble, good casting property.
The room temperature tensile intensity of the aluminium alloy wheel hub that the inventive method prepares is 410～480MPa, resisting under the conditions of 320 DEG C
Tensile strength is 300～310MPa, and yield strength is 329～340MPa, and Brinell hardness is 110～128, elongation percentage be 14.0～
14.8%., and gained wheel hub product is without local defect, each several part performance is homogeneous.
This aluminium alloy is applicable to make high-grade car wheel hub, after being cast, smooth surface, and outward appearance is beautiful, and quality is light, intensity
Height, safety coefficient is high.
Preparation technology of the present invention is simple to operation, and energy consumption is low, and production efficiency is high, is suitable for large-scale production.
Detailed description of the invention
Purpose and technical scheme for making the embodiment of the present invention are clearer, below the technical scheme to the embodiment of the present invention
It is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention rather than whole realities
Execute example.Based on described embodiments of the invention, those of ordinary skill in the art are institute on the premise of without creative work
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (include technology art
Language and scientific terminology) have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Also should
Being understood by, those terms defined in such as general dictionary should be understood that the meaning having with the context of prior art
The meaning that justice is consistent, and unless defined as here, will not explain by idealization or the most formal implication.
Embodiment 1
A kind of aluminum alloy materials for automotive hub, by weight/mass percentage composition, is prepared from by following component:
Silicon 5%
Magnesium 3%
Copper 0.01%
Zinc 0.01%
Manganese 3%
Chromium 0.5%
Carbon fiber 1%
Potassium titanate 1%,
Surplus is aluminum.
Another object of the present invention is to provide the preparation method of a kind of aluminum alloy materials for automotive hub, including such as
Lower step: a, by above-mentioned mass percent, weigh each component raw material；B, at casting mould inner surface Cast-in-place hardfacing coating, wait to cast
Make coating half capable person's carbon fiber and be layed in cast paint surface；C, by magnesium, copper, zinc, manganese, titanium, chromium, potassium titanate and aluminium powder mix
Uniformly and grind to form the mixed-powder of a size of 1um；D, that mixed-powder is heated to mixed-powder is the most melted, is added by casting mould
Heat, to 800 DEG C, allows casting mould be in temperature constant state and with the poring rate of 0.61m/s, melted mixed-powder is cast in casting
In mould；Pressurizeing, at sprue gate, the casting mould being under constant temperature immediately after e, casting complete, pressing force is
0.01MPa, the pressurization retention time is 1h；F, casting mould being carried out staged cooling, the first stage is to be cooled down by casting mould
After 200 DEG C, constant temperature 3h, second stage is for naturally cool to room temperature by casting mould；G, the demoulding process, and remove workpiece
Burr removal had both obtained wheel hub product.
The described first stage, for casting mould is cooled to 200 DEG C, is specially and is put into by casting mould to room temperature in water
Or cooling oil cools down.
Embodiment 2
A kind of aluminum alloy materials for automotive hub, by weight/mass percentage composition, is prepared from by following component:
Silicon 8%
Magnesium 8%
Copper 0.03%
Zinc 0.02%
Manganese 5%
Chromium 3%
Carbon fiber 8%
Potassium titanate 5%,
Surplus is aluminum.
Another object of the present invention is to provide the preparation method of a kind of aluminum alloy materials for automotive hub, including such as
Lower step: a, by above-mentioned mass percent, weigh each component raw material；B, at casting mould inner surface Cast-in-place hardfacing coating, wait to cast
Make coating half capable person's carbon fiber and be layed in cast paint surface；C, by magnesium, copper, zinc, manganese, titanium, chromium, potassium titanate and aluminium powder mix
Uniformly and grind to form the mixed-powder of a size of 1.5um；D, that mixed-powder is heated to mixed-powder is the most melted, by casting mould
It is heated to 900 DEG C, allows casting mould be in temperature constant state and melted mixed-powder is cast in casting with the poring rate of 0.68m/s
In modeling tool；Pressurizeing, at sprue gate, the casting mould being under constant temperature immediately after e, casting complete, pressing force is
0.015MPa, the pressurization retention time is 1.5h；F, casting mould being carried out staged cooling, the first stage is that casting mould is cold
But to after 300 DEG C, constant temperature 5h, second stage is for naturally cool to room temperature by casting mould；G, the demoulding process, and carry out workpiece
Burr removal is gone both to obtain wheel hub product.
Also including wheel hub product is carried out surface Hardening Treatment, such as blasting treatment, or surface boronizing processes.
The described first stage, for casting mould is cooled to 300 DEG C, is specially and is put into by casting mould to room temperature in water
Or cooling oil cools down.
Embodiment 3
A kind of aluminum alloy materials for automotive hub, by weight/mass percentage composition, is prepared from by following component:
Silicon 6%
Magnesium 4%
Copper 0.02%
Zinc 0.015%
Manganese 3.5%
Chromium 0.9%
Carbon fiber 4%
Potassium titanate 2%,
Surplus is aluminum.
Another object of the present invention is to provide the preparation method of a kind of aluminum alloy materials for automotive hub, including such as
Lower step: a, by above-mentioned mass percent, weigh each component raw material；B, at casting mould inner surface Cast-in-place hardfacing coating, wait to cast
Make coating half capable person's carbon fiber and be layed in cast paint surface；C, by magnesium, copper, zinc, manganese, titanium, chromium, potassium titanate and aluminium powder mix
Uniformly and grind to form the mixed-powder of a size of 1.2um；D, that mixed-powder is heated to mixed-powder is the most melted, by casting mould
It is heated to 840 DEG C, allows casting mould be in temperature constant state and melted mixed-powder is cast in casting with the poring rate of 0.65m/s
In modeling tool；Pressurizeing, at sprue gate, the casting mould being under constant temperature immediately after e, casting complete, pressing force is
0.012MPa, the pressurization retention time is 1.2h；F, casting mould being carried out staged cooling, the first stage is that casting mould is cold
But to after 230 DEG C, constant temperature 4h, second stage is for naturally cool to room temperature by casting mould；G, the demoulding process, and carry out workpiece
Burr removal is gone both to obtain wheel hub product.
Also including wheel hub product is carried out surface Hardening Treatment, such as blasting treatment, or surface boronizing processes.
The technical scheme improved as the present invention, being specially will in order casting mould is cooled to 230 DEG C the described first stage
Casting mould is put into and is cooled down in water or in cooling oil to room temperature.
Embodiment 4
A kind of aluminum alloy materials for automotive hub, by weight/mass percentage composition, is made up of following component:
Silicon 6%
Magnesium 5%
Copper 0.01%
Zinc 0.01%
Manganese 4%
Chromium 0.5%
Carbon fiber 3%
Potassium titanate 2%,
Surplus is aluminum.
Another object of the present invention is to provide the preparation method of a kind of aluminum alloy materials for automotive hub, including such as
Lower step: a, by above-mentioned mass percent, weigh each component raw material；B, at casting mould inner surface Cast-in-place hardfacing coating, wait to cast
Make coating half capable person's carbon fiber and be layed in cast paint surface；C, by magnesium, copper, zinc, manganese, titanium, chromium, potassium titanate and aluminium powder mix
Uniformly and grind to form the mixed-powder of a size of 1.1um；D, that mixed-powder is heated to mixed-powder is the most melted, by casting mould
It is heated to 860 DEG C DEG C, allows casting mould be in temperature constant state and melted mixed-powder is cast in the poring rate of 0.64m/s
In casting mould；At sprue gate, the casting mould being under constant temperature is pressurizeed immediately after e, casting complete, pressing force
For 0.012MPa, the pressurization retention time is 1.2h；F, casting mould being carried out staged cooling, the first stage is by casting mould
After being cooled to 260 DEG C, constant temperature 3.5h, second stage is for naturally cool to room temperature by casting mould；G, the demoulding process, and to workpiece
It is removed burr and both obtains wheel hub product.
Also including wheel hub product is carried out surface Hardening Treatment, such as blasting treatment, or surface boronizing processes.
The technical scheme improved as the present invention, being specially will in order casting mould is cooled to 260 DEG C the described first stage
Casting mould is put into and is cooled down in water or in cooling oil to room temperature.
Embodiment 5
A kind of aluminum alloy materials for automotive hub, by weight/mass percentage composition, is made up of following component:
Silicon 7%
Magnesium 7%
Copper 0.02%
Zinc 0.02%
Manganese 5%
Chromium 1%
Carbon fiber 2%
Potassium titanate 1.5%,
Surplus is aluminum.
Another object of the present invention is to provide the preparation method of a kind of aluminum alloy materials for automotive hub, including such as
Lower step: a, by above-mentioned mass percent, weigh each component raw material；B, at casting mould inner surface Cast-in-place hardfacing coating, wait to cast
Make coating half capable person's carbon fiber and be layed in cast paint surface；C, by magnesium, copper, zinc, manganese, titanium, chromium, potassium titanate and aluminium powder mix
Uniformly and grind to form the mixed-powder of a size of 1um；D, that mixed-powder is heated to mixed-powder is the most melted, is added by casting mould
Heat, to 900 DEG C, allows casting mould be in temperature constant state and with the poring rate of 0.61m/s, melted mixed-powder is cast in casting
In mould；Pressurizeing, at sprue gate, the casting mould being under constant temperature immediately after e, casting complete, pressing force is
0.015MPa, the pressurization retention time is 1h；F, casting mould being carried out staged cooling, the first stage is to be cooled down by casting mould
After 300 DEG C, constant temperature 3h, second stage is for naturally cool to room temperature by casting mould；G, the demoulding process, and remove workpiece
Burr removal had both obtained wheel hub product.
Also including wheel hub product is carried out surface Hardening Treatment, such as blasting treatment, or surface boronizing processes.
The technical scheme improved as the present invention, being specially will in order casting mould is cooled to 300 DEG C the described first stage
Casting mould is put into and is cooled down in water or in cooling oil to room temperature.
Embodiment 6
A kind of aluminum alloy materials for automotive hub, by weight/mass percentage composition, is made up of following component:
Silicon 6.5%
Magnesium 6.5%
Copper 0.015%
Zinc 0.012%
Manganese 4.5%
Chromium 0.7%
Carbon fiber 1.5%
Potassium titanate 1.2%,
Surplus is aluminum.
Another object of the present invention is to provide the preparation method of a kind of aluminum alloy materials for automotive hub, including such as
Lower step: a, by above-mentioned mass percent, weigh each component raw material；B, at casting mould inner surface Cast-in-place hardfacing coating, wait to cast
Make coating half capable person's carbon fiber and be layed in cast paint surface；C, by magnesium, copper, zinc, manganese, titanium, chromium, potassium titanate and aluminium powder mix
Uniformly and grind to form the mixed-powder of a size of 1.5um；D, that mixed-powder is heated to mixed-powder is the most melted, by casting mould
It is heated to 900 DEG C, allows casting mould be in temperature constant state and melted mixed-powder is cast in casting with the poring rate of 0.68m/s
In modeling tool；Pressurizeing, at sprue gate, the casting mould being under constant temperature immediately after e, casting complete, pressing force is
0.015MPa, the pressurization retention time is 1h；F, casting mould being carried out staged cooling, the first stage is to be cooled down by casting mould
After 200 DEG C, constant temperature 3, second stage is for naturally cool to room temperature by casting mould；G, the demoulding process, and remove workpiece
Burr removal had both obtained wheel hub product.
Also including wheel hub product is carried out surface Hardening Treatment, such as blasting treatment, or surface boronizing processes.
The technical scheme improved as the present invention, being specially will in order casting mould is cooled to 200 DEG C the described first stage
Casting mould is put into and is cooled down in water or in cooling oil to room temperature.
Comparative example 7
A kind of aluminum alloy materials for automotive hub, by weight/mass percentage composition, is made up of following component:
Silicon 6.5%
Magnesium 6.5%
Copper 0.015%
Zinc 0.012%
Manganese 4.5%
Chromium 0.7%
Surplus is aluminum.
Another object of the present invention is to provide the preparation method of a kind of aluminum alloy materials for automotive hub, including such as
Lower step: a, by above-mentioned mass percent, weigh each component raw material；B, at casting mould inner surface Cast-in-place hardfacing coating；C, general
Magnesium, copper, zinc, manganese, titanium, chromium and aluminium powder mix homogeneously also grind to form the mixed-powder of a size of 1.5um；D, mixed-powder heat
The most melted to mixed-powder, casting mould is heated to 900 DEG C, allows casting mould be in temperature constant state by melted mixed powder
End is cast in casting mould with the poring rate of 0.68m/s；After e, casting complete immediately at sprue gate to being under constant temperature
Casting mould pressurize, pressing force is 0.015MPa, and the pressurization retention time is 1h；F, casting mould is carried out staged
Cooling, after the first stage is for being cooled to 200 DEG C by casting mould, constant temperature 3, second stage is for naturally cool to room by casting mould
Temperature；G, the demoulding process, and workpiece is removed burr both wheel hub product.
Also including wheel hub product is carried out surface Hardening Treatment, such as blasting treatment, or surface boronizing processes.
The technical scheme improved as the present invention, being specially will in order casting mould is cooled to 200 DEG C the described first stage
Casting mould is put into and is cooled down in water or in cooling oil to room temperature.
Being tested by the aluminium alloy wheel hub finished product preparing the various embodiments described above, test result is as shown in table 1:
The performance of the aluminium alloy wheel hub that each embodiment of table 1 prepares
| Room temperature tensile intensity | Tensile strength under the conditions of 320 DEG C | Yield strength | Elongation percentage | Brinell hardness | |
| Embodiment 1 | 420MPa | 300MPa | 329MPa | 14.0% | 100 |
| Embodiment 2 | 410MPa | 301MPa | 330MPa | 14.5% | 120 |
| Embodiment 3 | 460MPa | 300MPa | 331MPa | 14.4% | 110 |
| Embodiment 4 | 480MPa | 304MPa | 339MPa | 14.3% | 112 |
| Embodiment 5 | 480MPa | 310MPa | 340MPa | 14.8% | 128 |
| Embodiment 6 | 470MPa | 305MPa | 333MPa | 14.6% | 125 |
| Embodiment 7 | 409MPa | 290MPa | 326MPa | 14.0% | 97 |
This aluminium alloy is applicable to make high-grade car wheel hub, after being cast, smooth surface, and outward appearance is beautiful, and quality is light, and intensity is high, peace
Overall coefficient is high.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (5)
1. the aluminum alloy materials for automotive hub, it is characterised in that by weight/mass percentage composition, following component prepare and
Become:
Silicon 5%-8%
Magnesium 3%-8%
Copper 0.01%-0.03%
Zinc 0.01%-0.02%
Manganese 3%-5%
Chromium 0.5%-3%
Carbon fiber 1%-8%
Potassium titanate 1%-5%,
Surplus is aluminum.
A kind of aluminum alloy materials for automotive hub the most according to claim 1, it is characterised in that contain by percent mass
Amount, is made up of following component:
Silicon 6%-7%
Magnesium 5%-7%
Copper 0.01%-0.02%
Zinc 0.01%-0.02%
Manganese 4%-5%
Chromium 0.5%-1%
Carbon fiber 1%-3%
Potassium titanate 1%-2%,
Surplus is aluminum.
3. the preparation method of the aluminum alloy materials being used for automotive hub as claimed in claim 1, it is characterised in that include
Following steps: a, by above-mentioned mass percent, weigh each component raw material；B, at casting mould inner surface Cast-in-place hardfacing coating, treat
Cast paint half capable person's carbon fiber is layed in cast paint surface；C, by magnesium, copper, zinc, manganese, chromium, potassium titanate and aluminium powder mix
Uniformly and grind to form the mixed-powder of a size of 1um-1.5um；D, that mixed-powder is heated to mixed-powder is the most melted, casting die
Tool is heated to 800 DEG C-900 DEG C, allows casting mould be in temperature constant state by melted mixed-powder watering with 0.61-0.68m/s
Note speed is cast in casting mould；At sprue gate, the casting mould being under constant temperature is added immediately after e, casting complete
Pressure, pressing force is 0.01-0.015MPa, and the pressurization retention time is 1-1.5h；F, casting mould is carried out staged cooling,
After one stage is for being cooled to 200-300 DEG C by casting mould, constant temperature 3-5h, second stage is for naturally cool to room by casting mould
Temperature；G, the demoulding process, and workpiece is removed burr both wheel hub product.
The preparation method of a kind of aluminum alloy materials for automotive hub the most according to claim 3, it is characterised in that also
Surface Hardening Treatment is carried out including to wheel hub product.
The preparation method of a kind of aluminum alloy materials for automotive hub the most according to claim 3, it is characterised in that institute
State the first stage for casting mould is cooled to 200-300 DEG C, be specially and casting mould put into room temperature in water or cooling
Oil cools down.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164699A (en) * | 2017-05-13 | 2017-09-15 | 合肥鼎鑫模具有限公司 | A kind of alloy mold and its application for automotive hub die casting |
| CN108723309A (en) * | 2018-06-25 | 2018-11-02 | 牛乾 | High-strength aluminium-magnesium alloy cast ingot and preparation method thereof |
| CN109177649A (en) * | 2018-09-04 | 2019-01-11 | 江苏东方龙机车集团有限公司 | High-strength vehicle wheel hub and its processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103602932A (en) * | 2013-12-10 | 2014-02-26 | 湖南健行康复器材科技发展有限公司 | Carbon-fiber-reinforced aluminum-base composite material and preparation method thereof |
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| CN105525157A (en) * | 2016-02-17 | 2016-04-27 | 苏州华冲精密机械有限公司 | Aluminum alloy automobile hub casting process |
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| CN107164699A (en) * | 2017-05-13 | 2017-09-15 | 合肥鼎鑫模具有限公司 | A kind of alloy mold and its application for automotive hub die casting |
| CN108723309A (en) * | 2018-06-25 | 2018-11-02 | 牛乾 | High-strength aluminium-magnesium alloy cast ingot and preparation method thereof |
| CN108723309B (en) * | 2018-06-25 | 2021-01-01 | 临沂利信铝业有限公司 | Aluminum-magnesium alloy cast ingot and preparation method thereof |
| CN109177649A (en) * | 2018-09-04 | 2019-01-11 | 江苏东方龙机车集团有限公司 | High-strength vehicle wheel hub and its processing method |
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