CN112725643A - Production process of aluminum profile for automobile collision energy-absorbing component - Google Patents
Production process of aluminum profile for automobile collision energy-absorbing component Download PDFInfo
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- CN112725643A CN112725643A CN202011382170.2A CN202011382170A CN112725643A CN 112725643 A CN112725643 A CN 112725643A CN 202011382170 A CN202011382170 A CN 202011382170A CN 112725643 A CN112725643 A CN 112725643A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
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Abstract
The invention discloses a production process of an aluminum profile for an automobile collision energy-absorbing component, which comprises the following steps: step one, preparing materials, namely preparing an aluminum alloy raw material according to the following mass percent: 0.60-0.65% of Si, 0.12-0.14% of Fe, 0.40-0.45% of Cu, 0.5-1.0% of Mn, 1.55-1.85% of Mg, 0.3-0.5% of Cr, 0.01-0.02% of Zn0.01-0.02% of Ag0.10-0.15% of Ags, 0.22-0.24% of Cr0.10-0.15% of Zrs, 0.01-0.02% of Ti, 0.02-0.06% of Sc, 0.05-0.09% of Ca, and the balance of Al and inevitable impurities; step two, casting, step three, homogenizing annealing treatment, step four, extrusion forming, step five, online quenching, step six and aging treatment. The invention can improve the tensile mechanical property of the aluminum profile without reducing the plasticity.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of aluminum profiles, in particular to the technical field of an aluminum profile production process for an automobile collision energy-absorbing component.
[ background of the invention ]
The lightweight automobile becomes the popular trend in the automobile manufacturing industry at home and abroad, and along with the continuous application of all-aluminum passenger automobile bodies, the aluminum alloy has the most remarkable advantages in lightweight automobile materials. Aluminum profiles applied to automobile impact beams, crash boxes and the like are generally required to have moderate strength and excellent impact properties and bending formability. For the inspection index of the collision performance, the compression performance of the aluminum profile is generally adopted, and the performance is generally carried out by adopting a quasi-static compression test with better relevance with the collision performance. The compression performance of the aluminum profile is evaluated through the folding deformation condition and the crack condition in the compression process of the aluminum profile, and the length of the crack is generally unacceptable when the crack length is larger than 15 mm. Domestic automobile manufacturers mostly adopt 6082, 7005, 7003 and other alloys for designing aluminum profiles for collision energy-absorbing parts, but the alloys have high element content and high extrusion difficulty, and the improvement of tensile mechanical properties often leads to the reduction of plasticity, so that the compression properties of the aluminum profiles are poorer.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides a production process of an aluminum profile for an automobile collision energy-absorbing component, which can ensure that the plasticity of the aluminum profile is not reduced while the tensile mechanical property is improved.
In order to achieve the purpose, the invention provides a production process of an aluminum profile for an automobile collision energy-absorbing component, which comprises the following steps:
step one, preparing materials, namely preparing an aluminum alloy raw material according to the following mass percent: 0.60-0.65% of Si, 0.12-0.14% of Fe, 0.40-0.45% of Cu, 0.5-1.0% of Mn, 1.55-1.85% of Mg, 0.3-0.5% of Cr, 0.01-0.02% of Zn0.01-0.02% of Ag0.10-0.15% of Ags, 0.22-0.24% of Cr0.10-0.15% of Zrs, 0.01-0.02% of Ti, 0.02-0.06% of Sc, 0.05-0.09% of Ca, and the balance of Al and inevitable impurities;
step two, casting, namely adding the prepared aluminum alloy raw material into a smelting furnace for smelting, and casting the aluminum alloy raw material into an aluminum bar after smelting is finished;
step three, homogenizing annealing treatment, namely placing the aluminum bar obtained by casting into a homogenizing furnace for homogenizing heat treatment, heating to 535-545 ℃, performing primary homogenization, preserving heat for 6 hours, then heating to 585-600 ℃, performing secondary homogenization, preserving heat for 2 hours, then air-cooling to 250-260 ℃, and then water-cooling to normal temperature;
extruding and forming, namely feeding the homogenized aluminum bar into an extruder for extruding to obtain an aluminum alloy section, wherein the extrusion temperature is 500-550 ℃, and the extrusion speed is 4-5 m/min;
step five, online quenching, wherein the aluminum alloy section obtained by extrusion is subjected to online quenching in a water cooling mode, and the temperature of cooling water is 35-40 ℃;
and step six, performing aging treatment, namely performing artificial aging on the quenched aluminum alloy section, wherein the heat preservation temperature of the first artificial aging stage is 125-plus-one 130 ℃, the heat preservation time is 10-12h, the heat preservation temperature of the second artificial aging stage is 180-plus-one 185 ℃, and the heat preservation time is 5-6 h.
Preferably, in the second step, the smelting temperature of the smelting furnace is 800-850 ℃, aluminum alloy raw materials are added into the smelting furnace to be smelted into aluminum liquid, the aluminum liquid is uniformly stirred by using an electromagnetic stirring device, a powdery refining agent is added according to 0.2 percent of the weight of the aluminum liquid to carry out refining for 30-40min, a deslagging agent is added according to 0.1 percent of the weight of the aluminum liquid, the aluminum liquid is uniformly stirred by using the electromagnetic stirring device for 20-30min, the mixture is kept stand for 30-40min, then, residual impurities in the aluminum liquid are filtered by a 70-80 mesh ceramic filter plate, and then the aluminum liquid is cast into an.
Preferably, in the first step, the aluminum alloy raw materials comprise the following components in percentage by mass: 0.60% of Si, 0.12% of Fe, 0.40% of Cu0.5% of Mn, 1.55% of Mg, 0.3% of Cr0.01% of Zn0.01% of Ag0.10% of Cr0.22% of Zr0.10% of Ti, 0.02% of Sc, 0.05% of Ca and the balance of Al and inevitable impurities.
Preferably, in the first step, the aluminum alloy raw materials comprise the following components in percentage by mass: 0.65% of Si, 0.14% of Fe, 0.45% of Cu0.0%, 1.0% of Mn1.85%, 0.5% of Cr0.02%, 0.15% of Ag0, 0.24% of Cr0, 0.10-0.15% of Zr0, 0.02% of Ti0.06%, 0.09% of Ca, and the balance of Al and inevitable impurities.
Preferably, in the first step, the aluminum alloy raw materials comprise the following components in percentage by mass: 0.62% of Si, 0.13% of Fe, 0.45% of Cu0.7% of Mn, 1.65% of Mg, 0.4% of Cr0.02%, 0.15% of Ag0, 0.24% of Cr0.12% of Zr0.02%, 0.02% of Ti, 0.05% of Sc, 0.08% of Ca and the balance of Al and inevitable impurities.
The invention has the beneficial effects that: according to the invention, the alloy component proportion of the aluminum alloy ingot is optimized, the types and the proportion of the strengthening phase and the intermetallic compound in the alloy are optimized, and the plasticity of the aluminum profile is not reduced while the tensile mechanical property is improved.
The features and advantages of the present invention will be described in detail by way of examples.
[ detailed description ] embodiments
The invention relates to a production process of an aluminum profile for an automobile collision energy-absorbing component, which comprises the following steps:
step one, preparing materials, namely preparing an aluminum alloy raw material according to the following mass percent: 0.60-0.65% of Si, 0.12-0.14% of Fe, 0.40-0.45% of Cu, 0.5-1.0% of Mn, 1.55-1.85% of Mg, 0.3-0.5% of Cr, 0.01-0.02% of Zn0.01-0.02% of Ag0.10-0.15% of Ags, 0.22-0.24% of Cr0.10-0.15% of Zrs, 0.01-0.02% of Ti, 0.02-0.06% of Sc, 0.05-0.09% of Ca, and the balance of Al and inevitable impurities;
step two, casting, namely adding the prepared aluminum alloy raw material into a smelting furnace for smelting, and casting the aluminum alloy raw material into an aluminum bar after smelting is finished;
step three, homogenizing annealing treatment, namely placing the aluminum bar obtained by casting into a homogenizing furnace for homogenizing heat treatment, heating to 535-545 ℃, performing primary homogenization, preserving heat for 6 hours, then heating to 585-600 ℃, performing secondary homogenization, preserving heat for 2 hours, then air-cooling to 250-260 ℃, and then water-cooling to normal temperature;
extruding and forming, namely feeding the homogenized aluminum bar into an extruder for extruding to obtain an aluminum alloy section, wherein the extrusion temperature is 500-550 ℃, and the extrusion speed is 4-5 m/min;
step five, online quenching, wherein the aluminum alloy section obtained by extrusion is subjected to online quenching in a water cooling mode, and the temperature of cooling water is 35-40 ℃;
and step six, performing aging treatment, namely performing artificial aging on the quenched aluminum alloy section, wherein the heat preservation temperature of the first artificial aging stage is 125-plus-one 130 ℃, the heat preservation time is 10-12h, the heat preservation temperature of the second artificial aging stage is 180-plus-one 185 ℃, and the heat preservation time is 5-6 h.
In the second step, the smelting temperature of the smelting furnace is 800-850 ℃, aluminum alloy raw materials are added into the smelting furnace to be smelted into aluminum liquid, the aluminum liquid is uniformly stirred by using an electromagnetic stirring device, a powdery refining agent is added according to 0.2 percent of the weight of the aluminum liquid to carry out refining for 30-40min, a deslagging agent is added according to 0.1 percent of the weight of the aluminum liquid, the aluminum liquid is uniformly stirred by using the electromagnetic stirring device for 20-30min, the mixture is kept stand for 30-40min, then, residual impurities in the aluminum liquid are filtered by a 70-80-mesh ceramic filter plate, and then the aluminum liquid is cast.
In the first embodiment, the aluminum alloy raw materials in the first step comprise, by mass: 0.60% of Si, 0.12% of Fe, 0.40% of Cu0.5% of Mn, 1.55% of Mg, 0.3% of Cr0.01% of Zn0.01% of Ag0.10% of Cr0.22% of Zr0.10% of Ti, 0.02% of Sc, 0.05% of Ca and the balance of Al and inevitable impurities.
In the second embodiment, the aluminum alloy raw materials in the first step comprise the following components in percentage by mass: 0.65% of Si, 0.14% of Fe, 0.45% of Cu0.0%, 1.0% of Mn1.85%, 0.5% of Cr0.02%, 0.15% of Ag0, 0.24% of Cr0, 0.10-0.15% of Zr0, 0.02% of Ti0.06%, 0.09% of Ca, and the balance of Al and inevitable impurities.
In the third embodiment, the aluminum alloy raw materials in the first step comprise, by mass: 0.62% of Si, 0.13% of Fe, 0.45% of Cu0.7% of Mn, 1.65% of Mg, 0.4% of Cr0.02%, 0.15% of Ag0, 0.24% of Cr0.12% of Zr0.02%, 0.02% of Ti, 0.05% of Sc, 0.08% of Ca and the balance of Al and inevitable impurities.
According to the invention, the alloy component proportion of the aluminum alloy ingot is optimized, the types and the proportion of the strengthening phase and the intermetallic compound in the alloy are optimized, and the plasticity of the aluminum profile is not reduced while the tensile mechanical property is improved.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (5)
1. A production process of an aluminum profile for an automobile collision energy-absorbing component is characterized by comprising the following steps: the method comprises the following steps:
step one, preparing materials, namely preparing an aluminum alloy raw material according to the following mass percent: 0.60-0.65% of Si, 0.12-0.14% of Fe, 0.40-0.45% of Cu, 0.5-1.0% of Mn, 1.55-1.85% of Mg, 0.3-0.5% of Cr, 0.01-0.02% of Zn0.01-0.02% of Ag0.10-0.15% of Ags, 0.22-0.24% of Cr0.10-0.15% of Zrs, 0.01-0.02% of Ti, 0.02-0.06% of Sc, 0.05-0.09% of Ca, and the balance of Al and inevitable impurities;
step two, casting, namely adding the prepared aluminum alloy raw material into a smelting furnace for smelting, and casting the aluminum alloy raw material into an aluminum bar after smelting is finished;
step three, homogenizing annealing treatment, namely placing the aluminum bar obtained by casting into a homogenizing furnace for homogenizing heat treatment, heating to 535-545 ℃, performing primary homogenization, preserving heat for 6 hours, then heating to 585-600 ℃, performing secondary homogenization, preserving heat for 2 hours, then air-cooling to 250-260 ℃, and then water-cooling to normal temperature;
extruding and forming, namely feeding the homogenized aluminum bar into an extruder for extruding to obtain an aluminum alloy section, wherein the extrusion temperature is 500-550 ℃, and the extrusion speed is 4-5 m/min;
step five, online quenching, wherein the aluminum alloy section obtained by extrusion is subjected to online quenching in a water cooling mode, and the temperature of cooling water is 35-40 ℃;
and step six, performing aging treatment, namely performing artificial aging on the quenched aluminum alloy section, wherein the heat preservation temperature of the first artificial aging stage is 125-plus-one 130 ℃, the heat preservation time is 10-12h, the heat preservation temperature of the second artificial aging stage is 180-plus-one 185 ℃, and the heat preservation time is 5-6 h.
2. The production process of the aluminum profile for the automobile collision energy absorption part as claimed in claim 1, characterized in that: in the second step, the smelting temperature of the smelting furnace is 800-850 ℃, aluminum alloy raw materials are added into the smelting furnace to be smelted into aluminum liquid, the aluminum liquid is uniformly stirred by using an electromagnetic stirring device, a powdery refining agent is added according to 0.2 percent of the weight of the aluminum liquid to carry out refining for 30-40min, a deslagging agent is added according to 0.1 percent of the weight of the aluminum liquid, the aluminum liquid is uniformly stirred by using the electromagnetic stirring device for 20-30min, the mixture is kept stand for 30-40min, then, residual impurities in the aluminum liquid are filtered by a 70-80-mesh ceramic filter plate, and then the aluminum liquid is cast.
3. The production process of the aluminum profile for the automobile collision energy absorption part as claimed in claim 1, characterized in that: the aluminum alloy in the first step comprises the following raw materials in percentage by mass: 0.60% of Si, 0.12% of Fe, 0.40% of Cu0.5% of Mn, 1.55% of Mg, 0.3% of Cr0.01% of Zn0.01% of Ag0.10% of Cr0.22% of Zr0.10% of Ti, 0.02% of Sc, 0.05% of Ca and the balance of Al and inevitable impurities.
4. The production process of the aluminum profile for the automobile collision energy absorption part as claimed in claim 1, characterized in that: the aluminum alloy in the first step comprises the following raw materials in percentage by mass: 0.65% of Si, 0.14% of Fe, 0.45% of Cu0.0%, 1.0% of Mn1.85%, 0.5% of Cr0.02%, 0.15% of Ag0, 0.24% of Cr0, 0.10-0.15% of Zr0, 0.02% of Ti0.06%, 0.09% of Ca, and the balance of Al and inevitable impurities.
5. The production process of the aluminum profile for the automobile collision energy absorption part as claimed in claim 1, characterized in that: the aluminum alloy in the first step comprises the following raw materials in percentage by mass: 0.62% of Si, 0.13% of Fe, 0.45% of Cu0.7% of Mn, 1.65% of Mg, 0.4% of Cr0.02%, 0.15% of Ag0, 0.24% of Cr0.12% of Zr0.02%, 0.02% of Ti, 0.05% of Sc, 0.08% of Ca and the balance of Al and inevitable impurities.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737074A (en) * | 2022-04-24 | 2022-07-12 | 慈溪市宜美佳铝业有限公司 | Plastic aluminum alloy and preparation method thereof |
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| CN114737074A (en) * | 2022-04-24 | 2022-07-12 | 慈溪市宜美佳铝业有限公司 | Plastic aluminum alloy and preparation method thereof |
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