CN113481415A - Aluminum extruded radiator material and forming process - Google Patents
Aluminum extruded radiator material and forming process Download PDFInfo
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- CN113481415A CN113481415A CN202110737447.7A CN202110737447A CN113481415A CN 113481415 A CN113481415 A CN 113481415A CN 202110737447 A CN202110737447 A CN 202110737447A CN 113481415 A CN113481415 A CN 113481415A
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- aluminum
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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
-
- 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
- B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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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
-
- 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
-
- 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)
- Extrusion Of Metal (AREA)
Abstract
The invention provides an aluminum extruded radiator material which comprises the following elements in percentage by mass: 0.0800-0.25% of silicon, 0.085-0.35% of iron, 0.0013-0.03% of manganese, 0.0042-0.03% of magnesium, 0.087-0.05% of zinc, 0.085-0.02% of titanium and the balance of aluminum. The aluminum extruded radiator material changes the hardness of the aluminum alloy by changing the contents of copper and chromium in the aluminum alloy, so that the product precision is easy to control in production, and the requirement of a producer can be met.
Description
Technical Field
The invention relates to the technical field of aluminum alloy, in particular to an aluminum extruded radiator material and a forming process.
Background
Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying elements added, and is one of light metal materials. Aluminum alloys have the general characteristics of aluminum, such as being lightweight, flexible, and the like. The alloy has specific characteristics due to different types and amounts of the added alloying elements.
Aluminum alloys are commonly used materials for heat sinks. The basic structure of the heat sink includes a die cast and an aluminum extruded part, i.e., a plurality of heat radiating fins arranged in parallel on the die cast. The forming of the extruded aluminium part is related to the production process and the mould on the one hand, and depends on the material of the extruded aluminium part on the other hand.
At present, the commonly used materials for manufacturing aluminum extruded parts are 6063 aluminum profiles, 6061 aluminum profiles and 6005 aluminum profiles, and the production process is to soften aluminum ingots at high temperature to enable the aluminum ingots to flow through an aluminum extrusion die under the powerful extrusion effect of an aluminum extruder to form aluminum profile products meeting requirements. However, 6063 aluminum profiles are hard and difficult to control in precision during molding, and cannot be formed into aluminum extrusions of suitable dimensions as desired by the manufacturer.
For this reason, it is necessary to improve 6063 aluminum profiles.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an aluminum extruded radiator material and a forming process, the hardness of the aluminum alloy is changed by changing the contents of copper and chromium in the aluminum alloy, so that the aluminum extruded radiator material is easy to control in production, and the defects that in the prior art, the aluminum alloy is difficult to control in forming and an aluminum extruded part cannot be formed according to the requirements of a producer are overcome.
The technical scheme of the invention is as follows: an aluminum extruded radiator material comprises the following elements in percentage by mass: 0.0800-0.25% of silicon, 0.085-0.35% of iron, 0.0013-0.03% of manganese, 0.0042-0.03% of magnesium, 0.087-0.05% of zinc, 0.085-0.02% of titanium and the balance of aluminum.
The aluminum extruded radiator material comprises the following elements in percentage by mass: 0.0820-0.1013% of silicon, 0.088-0.1972% of iron, 0.0014-0.0053% of manganese, 0.0045-0.0288% of magnesium, 0.0903-0.0158% of zinc, 0.092-0.0190% of titanium and the balance of aluminum.
The aluminum extruded radiator material comprises the following elements in percentage by mass: 0.0863% of silicon, 0.0906% of iron, 0.0016% of manganese, 0.0050% of magnesium, 0.0103% of zinc, 0.0106% of titanium and the balance of aluminum.
In the aluminum alloy, a proper amount of silicon element is added to ensure that the aluminum alloy has good flow, reduce shrinkage cavity, improve pressure resistance, improve weldability and reduce thermal expansion coefficient, but the machinability of the aluminum alloy is deteriorated due to the addition of a large amount of silicon element.
In the aluminum alloy, the proper amount of iron element is added to reduce shrinkage cavity of the aluminum alloy and to miniaturize crystals, but the mechanical properties of the aluminum alloy are generally reduced.
The addition of a proper amount of manganese element in the aluminum alloy has the effect of refining the crystals of the aluminum alloy and preventing shrinkage cavities, but the addition amount of the manganese element is changed according to the content of iron in the aluminum alloy, otherwise coarse primary crystals are generated, and the mechanical properties are obviously reduced.
In the aluminum alloy, the addition of a proper amount of magnesium element can improve the mechanical properties and machinability of the aluminum alloy, but the melt fluidity and pressure resistance become poor, and the thermal fracture also increases remarkably. For silicon-containing aluminum alloys, with Mg2Precipitation hardening of Si may improve mechanical properties.
The addition of a suitable amount of nickel element to the aluminum alloy can improve the mechanical properties of the aluminum alloy at high temperatures.
The addition of titanium element in proper amount can make the crystal of the aluminum alloy fine and improve the mechanical property.
Although the addition of an appropriate amount of zinc to the aluminum alloy improves the mechanical properties of the aluminum alloy, the corrosion resistance is reduced, and if the amount is too large, shrinkage cavities are likely to occur.
The aluminum alloy does not contain copper.
The extrusion forming process of the aluminum extruded radiator material comprises the following steps: firstly, heating and casting an aluminum ingot in an aluminum ingot furnace at high temperature; and (3) conveying the mixture into a die, extruding and forming by the die, straightening, sawing, aging, cooling and packaging to obtain a finished product.
Wherein the casting temperature in the aluminum ingot furnace is 450-500 ℃; the temperature of the die is controlled between 420 ℃ and 500 ℃, the extrusion molding temperature is 450 ℃ and 510 ℃, the extrusion speed is generally 15-25M/min, and the extrusion speed of the molded high-density blade is generally 1-3M/min. The aging treatment temperature is controlled between 175 ℃ and 215 ℃ and the time is 3.5 to 5 hours. The aging treatment can strengthen the strength of the aluminum material and eliminate stress.
The aluminum extruded radiator material does not contain copper elements and chromium elements contained in 6063 aluminum profiles, 6061 aluminum profiles and 6005 aluminum profiles. The academia generally considers that copper has a solid solution strengthening effect in aluminum alloys, and the strengthening effect is best when the copper content in the aluminum alloy is 2.5-5%, and the copper content is 4-6.8% in a general form. For this purpose, copper is an essential element in 6063 aluminum profiles, 6061 aluminum profiles and 6005 aluminum profiles. Chromium is also a common additive element in 6063 aluminum profiles, 6061 aluminum profiles and 6005 aluminum profiles, and the academia generally considers that: chromium forms intermetallic compounds in the aluminum alloy, thereby hindering nucleation and growth of crystals, having a certain strengthening effect on the alloy, and also improving the toughness of the alloy, reducing the toughness of the alloy and reducing the stress corrosion cracking sensitivity. The applicant removes copper elements and chromium elements, thereby reducing the hardness of the material, softening the material, and being easy to process and form, and controlling the product precision.
The invention has the beneficial effects that: the aluminum extruded radiator material changes the hardness of the aluminum alloy by changing the contents of copper and chromium in the aluminum alloy, so that the product precision is easy to control in production, and the requirement of a producer can be met.
Detailed Description
In order to make the object, technical solution and technical effect of the present invention more apparent, the present invention will be further described with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Embodiment 1. an aluminum extruded heat sink material, comprising the following elements in mass percent: 0.0800% of silicon, 0.35% of iron, 0.0013% of manganese, 0.02% of magnesium, 0.03% of zinc, 0.01% of titanium and the balance of aluminum. The extrusion forming process of the upper aluminum extruded radiator material comprises the following steps: firstly, heating and casting an aluminum ingot in an aluminum ingot furnace at high temperature; and (3) conveying the mixture into a die, extruding and forming by the die, straightening, sawing, aging, cooling and packaging to obtain a finished product. The casting temperature in the aluminum ingot furnace is 450 ℃; the temperature of the die is controlled to be 430 ℃, the extrusion forming temperature is 450 ℃, and the extrusion speed of the extrusion forming high-density blade is 1-3M/min; the aging treatment temperature is controlled between 180 ℃ and the time is 4 hours.
Embodiment 2. an aluminum extruded radiator material, characterized by comprising the following elements by mass percent: 0.25% of silicon, 0.25% of iron, 0.02% of manganese, 0.0042% of magnesium, 0.087% of zinc, 0.02% of titanium and the balance of aluminum. The extrusion forming process of the upper aluminum extruded radiator material comprises the following steps: firstly, heating and casting an aluminum ingot in an aluminum ingot furnace at high temperature; and (3) conveying the mixture into a die, extruding and forming by the die, straightening, sawing, aging, cooling and packaging to obtain a finished product. The casting temperature in an aluminum ingot furnace is 500 ℃; the temperature of the die is controlled to be 440 ℃, the extrusion forming temperature is 510 ℃, and the extrusion speed of the extrusion forming high-density blade is 1-3M/min; the aging treatment temperature is controlled between 190 ℃ and the time is 3.5 hours.
Embodiment 3. an aluminum extruded heat sink material, comprising the following elements in mass percent: 0.15% of silicon, 0.085% of iron, 0.025% of manganese, 0.008% of magnesium, 0.05% of zinc, 0.085% of titanium and the balance of aluminum. The extrusion forming process of the upper aluminum extruded radiator material comprises the following steps: firstly, heating and casting an aluminum ingot in an aluminum ingot furnace at high temperature; and (3) conveying the mixture into a die, extruding and forming by the die, straightening, sawing, aging, cooling and packaging to obtain a finished product. The casting temperature in the aluminum ingot furnace is 480 ℃; controlling the temperature of the die to be 450 ℃, the extrusion forming temperature to be 480 ℃, and the extrusion speed of the extrusion forming high-density blade to be 1-3M/min; the ageing treatment temperature is controlled between 200 ℃ and the time is 5 hours.
Embodiment 4. an aluminum extruded heat sink material, comprising the following elements in mass percent: 0.0820% of silicon, 0.1972% of iron, 0.0014% of manganese, 0.0288% of magnesium, 0.0903% of zinc, 0.092% of titanium and the balance of aluminum. The extrusion forming process of the upper aluminum extruded radiator material comprises the following steps: firstly, heating and casting an aluminum ingot in an aluminum ingot furnace at high temperature; and (3) conveying the mixture into a die, extruding and forming by the die, straightening, sawing, aging, cooling and packaging to obtain a finished product. The casting temperature in the aluminum ingot furnace is 460 ℃; controlling the temperature of the die to be 480 ℃, the extrusion forming temperature to be 460 ℃, and the extrusion speed of the extrusion forming high-density blade to be 1-3M/min; the ageing treatment temperature is controlled between 200 ℃ and the time is 4 hours.
Embodiment 5. an aluminum extruded heat sink material, comprising the following elements in mass percent: 0.1013% of silicon, 0.088% of iron, 0.0053% of manganese, 0.0045% of magnesium, 0.0158% of zinc, 0.0190% of titanium and the balance of aluminum. The extrusion forming process of the upper aluminum extruded radiator material comprises the following steps: firstly, heating and casting an aluminum ingot in an aluminum ingot furnace at high temperature; and (3) conveying the mixture into a die, extruding and forming by the die, straightening, sawing, aging, cooling and packaging to obtain a finished product. The casting temperature in an aluminum ingot furnace is 470 ℃; controlling the temperature of the die to be 420 ℃, controlling the extrusion molding temperature to be 500 ℃, and controlling the extrusion speed of the extrusion molding high-density blade to be 1-3M/min; the ageing treatment temperature is controlled between 215 ℃ and the time is 3.5 hours.
Embodiment 6. an aluminum extruded heat sink material, comprising the following elements in mass percent: 0.0863% of silicon, 0.0906% of iron, 0.0016% of manganese, 0.0050% of magnesium, 0.0103% of zinc, 0.0106% of titanium and the balance of aluminum. The extrusion forming process of the upper aluminum extruded radiator material comprises the following steps: firstly, heating and casting an aluminum ingot in an aluminum ingot furnace at high temperature; and (3) conveying the mixture into a die, extruding and forming by the die, straightening, sawing, aging, cooling and packaging to obtain a finished product. The casting temperature in the aluminum ingot furnace is 480 ℃; controlling the temperature of the die to be 500 ℃, the extrusion forming temperature to be 510 ℃, and the extrusion speed of the extrusion forming high-density blade to be 1-3M/min; the ageing treatment temperature is controlled between 175 ℃ and the time is 4 hours.
In order to verify the technical effect of the present application, the applicant tested the vickers hardness of 6063 aluminum alloy sections and the aluminum alloy sections obtained in the above examples 1 to 6 according to the national standard GB 5237-2004. The results obtained were as follows:
| material | Detection value |
| 6063 aluminium alloy | 8.2HW |
| Example 1 | 7.75HW |
| Example 2 | 7.75HW |
| Example 3 | 7.86HW |
| Example 4 | 7.8HW |
| Example 5 | 7.82HW |
| Example 6 | 7.72HW |
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the present invention pertains, the architecture form can be flexible and varied without departing from the concept of the present invention, and a series of products can be derived. But rather a number of simple derivations or substitutions are made which are to be considered as falling within the scope of the invention as defined by the appended claims.
Claims (5)
1. An aluminum extruded radiator material is characterized by comprising the following elements in percentage by mass: 0.0800-0.25% of silicon, 0.085-0.35% of iron, 0.0013-0.03% of manganese, 0.0042-0.03% of magnesium, 0.087-0.05% of zinc, 0.085-0.02% of titanium and the balance of aluminum.
2. The aluminum extruded heat sink material of claim 1, comprising the following elements in mass percent: 0.0820-0.1013% of silicon, 0.088-0.1972% of iron, 0.0014-0.0053% of manganese, 0.0045-0.0288% of magnesium, 0.0903-0.0158% of zinc, 0.092-0.0190% of titanium and the balance of aluminum.
3. The aluminum extruded heat sink material of claim 1, wherein the aluminum extruded heat sink material comprises the following elements in percentage by mass: 0.0863% of silicon, 0.0906% of iron, 0.0016% of manganese, 0.0050% of magnesium, 0.0103% of zinc, 0.0106% of titanium and the balance of aluminum.
4. The extrusion molding process of the aluminum extruded heat sink material as claimed in any one of claims 1 to 3, comprising the steps of: firstly, heating and casting an aluminum ingot in an aluminum ingot furnace at high temperature; and (3) conveying the mixture into a die, extruding and forming by the die, straightening, sawing, aging, cooling and packaging to obtain a finished product.
5. The extrusion molding process of the aluminum extruded radiator material as claimed in claim 4, wherein the melting and casting temperature in the aluminum ingot furnace is 450-500 ℃; the temperature of the die is controlled between 420 ℃ and 500 ℃, the extrusion forming temperature is 450 ℃ and 510 ℃, and the extrusion speed of the extrusion forming high-density blade is 1-3M/min; the aging treatment temperature is controlled between 175 ℃ and 215 ℃ and the time is 3.5 to 5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110737447.7A CN113481415A (en) | 2021-06-30 | 2021-06-30 | Aluminum extruded radiator material and forming process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110737447.7A CN113481415A (en) | 2021-06-30 | 2021-06-30 | Aluminum extruded radiator material and forming process |
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| CN113481415A true CN113481415A (en) | 2021-10-08 |
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| CN202110737447.7A Pending CN113481415A (en) | 2021-06-30 | 2021-06-30 | Aluminum extruded radiator material and forming process |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359427A (en) * | 1999-02-22 | 2002-07-17 | 挪威海德罗公开有限公司 | Extrudable and drawable, high corrosion resistant aluminium alloy |
| CN109022852A (en) * | 2018-10-30 | 2018-12-18 | 辽宁忠旺集团有限公司 | A kind of 2007 rods and bars of aluminium alloy production technologies |
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- 2021-06-30 CN CN202110737447.7A patent/CN113481415A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359427A (en) * | 1999-02-22 | 2002-07-17 | 挪威海德罗公开有限公司 | Extrudable and drawable, high corrosion resistant aluminium alloy |
| CN109022852A (en) * | 2018-10-30 | 2018-12-18 | 辽宁忠旺集团有限公司 | A kind of 2007 rods and bars of aluminium alloy production technologies |
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