CN111378881A - Ultra-high-precision aluminum alloy section for battery tray side beam and preparation method thereof - Google Patents
Ultra-high-precision aluminum alloy section for battery tray side beam and preparation method thereof Download PDFInfo
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- CN111378881A CN111378881A CN202010319118.6A CN202010319118A CN111378881A CN 111378881 A CN111378881 A CN 111378881A CN 202010319118 A CN202010319118 A CN 202010319118A CN 111378881 A CN111378881 A CN 111378881A
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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
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
- B21C35/03—Straightening the work
-
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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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
- C22F1/053—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 zinc as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an ultra-high precision aluminum alloy section for a battery tray side beam and a preparation method thereof, wherein the aluminum alloy section comprises the following elements in percentage by mass: 0.7-0.9% of copper, 0.3-0.5% of silicon, 0.9-1.4% of molybdenum, 0.1-0.12% of titanium, 0.01-0.1% of cobalt, 0.01-0.02% of manganese, 0.9-1.2% of iron, 0.2-0.4% of carbon, 2.2-3.0% of Zn2, 0.019-0.011% of beryllium, 0.009-0.011% of lanthanum and the balance of aluminum. The invention optimizes the proportion of each element of the aluminum alloy, and simultaneously adds trace rare earth elements to refine crystal grains, improve the structure of the as-cast aluminum alloy and achieve the purpose of simultaneously improving the strength, toughness and wear resistance of the alloy; the preparation method of the invention prepares the hollow aluminum alloy section bar, which is specially used for the side beam of the battery tray, has light weight and high strength.
Description
Technical Field
The invention relates to the technical field of aluminum alloy material processing, in particular to an ultrahigh-precision aluminum alloy section for a battery tray side beam and a preparation method thereof.
Background
Aluminum alloys are the most widely used metal structural materials in industry and have been used in a large number of applications in aviation, aerospace, automotive, machinery manufacturing, and marine applications. The aluminum alloy has low density, high strength similar to or superior to that of high quality steel, good plasticity, easy machining, capacity of being produced into various shapes, excellent mechanical performance, excellent physical performance and excellent anticorrosive performance. With the rapid development of scientific technology and industrial economy, the requirements of the side beam of the automobile battery tray on the light weight, the wear resistance and the tensile strength of the aluminum alloy are increasingly improved. Therefore, designing and preparing the ultra-high precision aluminum alloy section for the side beam of the battery tray is a problem which needs to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide an ultrahigh-precision aluminum alloy section for a battery tray side beam and a preparation method thereof, aiming at the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an ultrahigh-precision aluminum alloy section for a battery tray side beam, which comprises the following chemical components in percentage by mass: 0.7-0.9% of copper, 0.3-0.5% of silicon, 0.9-1.4% of molybdenum, 0.1-0.12% of titanium, 0.01-0.1% of cobalt, 0.01-0.02% of manganese, 0.9-1.2% of iron, 0.2-0.4% of carbon, 2.2-3.0% of Zn, 0.019-0.011% of beryllium, 0.009-0.011% of lanthanum and the balance of aluminum.
Further, the aluminum alloy profile comprises the following chemical components in percentage by mass: 0.8 to 0.9 percent of copper, 0.3 to 0.4 percent of silicon, 0.9 to 1.2 percent of molybdenum, 0.11 to 0.12 percent of titanium, 0.02 to 0.05 percent of cobalt, 0.01 to 0.02 percent of manganese, 0.9 to 1.0 percent of iron, 0.3 to 0.4 percent of carbon, 2.5 to 3.0 percent of Zn, 0.009 to 0.011 percent of beryllium, 0.009 to 0.011 percent of lanthanum and the balance of aluminum.
The invention provides a preparation method of the ultrahigh-precision aluminum alloy section for the battery tray side beam, which comprises the following steps of:
s1: weighing an aluminum ingot and a copper ingot, adding the aluminum ingot and the copper ingot into a melting furnace for heating and melting, when the temperature of the molten liquid reaches 730-;
s2: casting to obtain aluminum alloy ingots, cooling to room temperature, and keeping at room temperature for 18-24 hours; heating to 495-505 ℃ in a sectional manner;
s3: heating the split flow combined die to 470-490 ℃, and then extruding the heated aluminum alloy ingot from the heated split flow combined die by using an extruder to form a hollow aluminum alloy section at the extrusion speed of 12-15 m/min; the surface temperature of the air-cooled section bar is 110-130 ℃, and the air-cooled section bar is put into aqueous quenching liquid at the temperature of 2-5 ℃ for quenching treatment for 2-3 minutes; finally, taking the extruded aluminum alloy section out of the water for stretching and straightening treatment;
s4: and carrying out single-stage aging treatment on the stretched and straightened hollow aluminum alloy section, keeping the temperature at 175-plus-one temperature of 185 ℃ for 8h, taking out of the furnace, and carrying out air cooling to room temperature to obtain the ultrahigh-precision aluminum alloy section for the side beam of the battery tray.
Further, the mass ratio of beryllium to lanthanum in the beryllium-lanthanum intermediate alloy is 1: 1.
Further, in S1, the refining agent is composed of the following components in parts by weight: 20 parts of sodium nitrate, 6 parts of potassium titanium fluoride, 36 parts of potassium chloride, 6 parts of sodium sulfate, 12 parts of phosphorus pentachloride, 15 parts of sodium fluoborate, 10 parts of calcium carbonate and 18 parts of charcoal powder.
Further, in S2, the step-wise temperature rise specifically includes: heating to 280-290 ℃ at the speed of 5 ℃/min, and preserving the heat for 8 hours; then heating to 495-505 ℃ at a speed of 10 ℃/min, and preserving the temperature for 5 hours.
Further, in S2, the casting temperature was 700 ℃.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
the invention optimizes the proportion of each element of the aluminum alloy, and simultaneously adds trace rare earth elements to refine crystal grains, improve the structure of the as-cast aluminum alloy and achieve the purpose of simultaneously improving the strength, toughness and wear resistance of the alloy; the preparation method of the invention prepares the hollow aluminum alloy section bar, which is specially used for the side beam of the battery tray, has light weight and high strength.
Detailed Description
The present invention will be described in detail and specifically with reference to the following examples to facilitate better understanding of the present invention, but the following examples do not limit the scope of the present invention.
A preparation method of an ultrahigh-precision aluminum alloy section for a battery tray side beam comprises the following steps:
s1: weighing an aluminum ingot and a copper ingot, adding the aluminum ingot and the copper ingot into a melting furnace for heating and melting, when the melting temperature reaches 730-;
s2: casting at 700 ℃ to obtain an aluminum alloy ingot, cooling to room temperature, and keeping at room temperature for 18-24 hours; heating to 280-290 ℃ at the speed of 5 ℃/min, and preserving the heat for 8 hours; then heating to 495 plus 505 ℃ at the speed of 10 ℃/min, and preserving the heat for 5 hours;
s3: heating the split flow combined die to 470-490 ℃, and then extruding the heated aluminum alloy ingot from the heated split flow combined die by using an extruder to form a hollow aluminum alloy section at the extrusion speed of 12-15 m/min; the surface temperature of the air-cooled section bar is 110-130 ℃, and the air-cooled section bar is put into aqueous quenching liquid at the temperature of 2-5 ℃ for quenching treatment for 2-3 minutes; finally, taking the extruded aluminum alloy section out of the water for stretching and straightening treatment;
s4: and carrying out single-stage aging treatment on the stretched and straightened hollow aluminum alloy section, keeping the temperature at 175-plus-one temperature of 185 ℃ for 8h, taking out of the furnace, and carrying out air cooling to room temperature to obtain the ultrahigh-precision aluminum alloy section for the side beam of the battery tray.
In the present example, the refining agent consists of the following components in parts by weight: 20 parts of sodium nitrate, 6 parts of potassium titanium fluoride, 36 parts of potassium chloride, 6 parts of sodium sulfate, 12 parts of phosphorus pentachloride, 15 parts of sodium fluoborate, 10 parts of calcium carbonate and 18 parts of charcoal powder.
The ultra-high precision aluminum alloy section for the battery tray side beam prepared by the preparation method comprises the following chemical components in percentage by weight: 0.8% of copper, 0.4% of silicon, 1.1% of molybdenum, 0.11% of titanium, 0.03% of cobalt, 0.02% of manganese, 1.0% of iron, 0.3% of carbon, 2.5% of Zn2.009% of beryllium, 0.009% of lanthanum and the balance of aluminum.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (7)
1. The ultra-high precision aluminum alloy section bar for the battery tray side beam is characterized by comprising the following chemical components in percentage by mass: 0.7-0.9% of copper, 0.3-0.5% of silicon, 0.9-1.4% of molybdenum, 0.1-0.12% of titanium, 0.01-0.1% of cobalt, 0.01-0.02% of manganese, 0.9-1.2% of iron, 0.2-0.4% of carbon, 2.2-3.0% of Zn, 0.019-0.011% of beryllium, 0.009-0.011% of lanthanum and the balance of aluminum.
2. The ultra-high precision aluminum alloy profile for the battery tray side beam as claimed in claim 1, characterized by comprising the following chemical components in percentage by mass: 0.8 to 0.9 percent of copper, 0.3 to 0.4 percent of silicon, 0.9 to 1.2 percent of molybdenum, 0.11 to 0.12 percent of titanium, 0.02 to 0.05 percent of cobalt, 0.01 to 0.02 percent of manganese, 0.9 to 1.0 percent of iron, 0.3 to 0.4 percent of carbon, 2.5 to 3.0 percent of Zn2, 0.009 to 0.011 percent of beryllium, 0.009 to 0.011 percent of lanthanum and the balance of aluminum.
3. A method for producing an ultra-high precision aluminum alloy section for a battery tray side member as claimed in any one of claims 1 to 2, characterized by comprising the steps of:
s1: weighing an aluminum ingot and a copper ingot, adding the aluminum ingot and the copper ingot into a melting furnace for heating and melting, when the temperature of the molten liquid reaches 730-;
s2: casting to obtain aluminum alloy ingots, cooling to room temperature, and keeping at room temperature for 18-24 hours; heating to 495-505 ℃ in a sectional manner;
s3: heating the split flow combined die to 470-490 ℃, and then extruding the heated aluminum alloy ingot from the heated split flow combined die by using an extruder to form a hollow aluminum alloy section at the extrusion speed of 12-15 m/min; the surface temperature of the air-cooled section bar is 110-130 ℃, and the air-cooled section bar is put into aqueous quenching liquid at the temperature of 2-5 ℃ for quenching treatment for 2-3 minutes; finally, taking the extruded aluminum alloy section out of the water for stretching and straightening treatment;
s4: and carrying out single-stage aging treatment on the stretched and straightened hollow aluminum alloy section, keeping the temperature at 175-plus-one temperature of 185 ℃ for 8h, taking out of the furnace, and carrying out air cooling to room temperature to obtain the ultrahigh-precision aluminum alloy section for the side beam of the battery tray.
4. The method according to claim 3, wherein the mass ratio of beryllium to lanthanum in the beryllium-lanthanum master alloy is 1: 1.
5. The preparation method according to claim 3, wherein in S1, the refining agent is composed of the following components in parts by weight: 20 parts of sodium nitrate, 6 parts of potassium titanium fluoride, 36 parts of potassium chloride, 6 parts of sodium sulfate, 12 parts of phosphorus pentachloride, 15 parts of sodium fluoborate, 10 parts of calcium carbonate and 18 parts of charcoal powder.
6. The preparation method according to claim 3, wherein in S2, the step-wise temperature rise is specifically: heating to 280-290 ℃ at the speed of 5 ℃/min, and preserving the heat for 8 hours; then heating to 495-505 ℃ at a speed of 10 ℃/min, and preserving the temperature for 5 hours.
7. The method according to claim 3, wherein the casting temperature in S2 is 700 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010319118.6A CN111378881A (en) | 2020-04-21 | 2020-04-21 | Ultra-high-precision aluminum alloy section for battery tray side beam and preparation method thereof |
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| CN202010319118.6A CN111378881A (en) | 2020-04-21 | 2020-04-21 | Ultra-high-precision aluminum alloy section for battery tray side beam and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115491548A (en) * | 2022-08-05 | 2022-12-20 | 安徽镁美科技有限公司 | New energy battery tray aluminum alloy casting and preparation method thereof |
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| GB644776A (en) * | 1947-02-18 | 1950-10-18 | Tennyson Fraser Bradbury | An aluminium base alloy |
| CN102703783A (en) * | 2012-05-30 | 2012-10-03 | 江门市长利光电科技有限公司 | High-heat conduction aluminum alloy for casting |
| CN104388772A (en) * | 2014-11-25 | 2015-03-04 | 安徽天祥空调科技有限公司 | Silicon-and-magnesium-containing aluminum alloy sheet for air-conditioning radiator and preparation method of silicon-and-magnesium-containing aluminum alloy sheet |
| CN108277398A (en) * | 2018-01-23 | 2018-07-13 | 合肥伊只门窗有限公司 | A kind of high-strength, antioxidant aluminium alloy compound door and its preparation process |
| CN109136687A (en) * | 2018-09-13 | 2019-01-04 | 台山市国峰耐磨金属科技有限公司 | A kind of production method of corrosion-resistant die casting |
| CN110234776A (en) * | 2016-11-28 | 2019-09-13 | 麦克马斯特大学 | Aluminium alloy and its production method for structure and non-structural nearly whole continuous casting |
-
2020
- 2020-04-21 CN CN202010319118.6A patent/CN111378881A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB644776A (en) * | 1947-02-18 | 1950-10-18 | Tennyson Fraser Bradbury | An aluminium base alloy |
| CN102703783A (en) * | 2012-05-30 | 2012-10-03 | 江门市长利光电科技有限公司 | High-heat conduction aluminum alloy for casting |
| CN104388772A (en) * | 2014-11-25 | 2015-03-04 | 安徽天祥空调科技有限公司 | Silicon-and-magnesium-containing aluminum alloy sheet for air-conditioning radiator and preparation method of silicon-and-magnesium-containing aluminum alloy sheet |
| CN110234776A (en) * | 2016-11-28 | 2019-09-13 | 麦克马斯特大学 | Aluminium alloy and its production method for structure and non-structural nearly whole continuous casting |
| CN108277398A (en) * | 2018-01-23 | 2018-07-13 | 合肥伊只门窗有限公司 | A kind of high-strength, antioxidant aluminium alloy compound door and its preparation process |
| CN109136687A (en) * | 2018-09-13 | 2019-01-04 | 台山市国峰耐磨金属科技有限公司 | A kind of production method of corrosion-resistant die casting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115491548A (en) * | 2022-08-05 | 2022-12-20 | 安徽镁美科技有限公司 | New energy battery tray aluminum alloy casting and preparation method thereof |
| CN115491548B (en) * | 2022-08-05 | 2023-08-22 | 安徽镁美科技有限公司 | New energy battery tray aluminum alloy casting and preparation method thereof |
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Application publication date: 20200707 |