CN106756282A - A kind of extrusion molding Al Fe Cu alloys and preparation method thereof - Google Patents
A kind of extrusion molding Al Fe Cu alloys and preparation method thereof Download PDFInfo
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- CN106756282A CN106756282A CN201710057840.5A CN201710057840A CN106756282A CN 106756282 A CN106756282 A CN 106756282A CN 201710057840 A CN201710057840 A CN 201710057840A CN 106756282 A CN106756282 A CN 106756282A
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- alloys
- extrusion molding
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- artificial aging
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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
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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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
-
- 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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
-
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- 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
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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
- C22F1/057—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 copper as the next major constituent
Abstract
A kind of extrusion molding Al Fe Cu alloys and preparation method thereof, belong to aluminum alloy heat process field；The constituent and its weight/mass percentage composition of the alloy be：Fe：3.0~6.0%, Cu：2.0~5.0%, Zn：0.5~2.0%, Mn：0.2~0.5%, Mg：0.3~1.5%, balance of Al and inevitable impurity；Preparation method：1) by the composition proportion dispensing of extrusion molding Al Fe Cu alloys, melting obtains Al Fe Cu alloy cast ingots；2) alloy cast ingot is preheated in uniform temperature；3) alloy cast ingot, is extruded, and Al Fe Cu alloy bar materials are obtained, and is batched after cooling；4) by alloy bar material, warm water quenching after solution treatment is carried out；5) artificial aging treatment, is air cooled to room temperature, and extrusion molding Al Fe Cu alloys are obtained；Alloy microscopic structure of the present invention is obviously improved, and tensile strength is 184~245Mpa, and Brinell hardness is 63~70HB；This invention simplifies Technology for Heating Processing flow, energy saving reduces production cost.
Description
Technical field
The invention belongs to aluminum alloy heat process field, and in particular to a kind of extrusion molding Al-Fe-Cu alloys and its preparation side
Method.
Background technology
Alfer in addition to aluminium alloy its own advantages, also with other premium properties, good corrosion resistance
Energy, fabulous wearability and certain intensity etc., are gradually increasing its attention rate in industrial circle.Until 70 years 20th century
Generation, alfer has gradually been treated as a kind of alloy system to be studied and applied.Have density low in aluminium alloy, it is high resistance to
Mill, the Al-Fe alloys of decay resistance become the substitute of aerospace material.
The content of the invention
It is an object of the invention to overcome general deformation Al-Fe-Cu alloys Cu elements in conventional solid solution processing procedure to go out
The phenomenon that alloy mechanical property caused by being now enriched with is remarkably decreased, there is provided a kind of extrusion molding Al-Fe-Cu alloys and its preparation
Method；Short route Technology for Heating Processing is used in preparation method.
Extrusion molding Al-Fe-Cu alloys of the invention, constituent and its weight/mass percentage composition are：Fe：3.0~
6.0%, Cu：2.0~5.0%, Zn：0.5~2.0%, Mn：0.2~0.5%, Mg：0.3~1.5%, balance of Al and can not
The impurity for avoiding.
Extrusion molding Al-Fe-Cu alloys of the invention, its tensile strength be 184~245Mpa, Brinell hardness be 63~
70HB。
The preparation method of extrusion molding Al-Fe-Cu alloys of the invention, comprises the following steps：
Step 1, melting：
By the composition proportion dispensing of extrusion molding Al-Fe-Cu alloys, melting obtains Al-Fe-Cu alloy cast ingots；
Step 2, the pre-heat treatment：
By Al-Fe-Cu alloy cast ingots, at 380~550 DEG C, 2~4h is preheated；
Step 3, extruding：
(1) by the Al-Fe-Cu alloy cast ingots after preheating, extruded, Al-Fe-Cu alloy bar materials are obtained；Wherein, extrude
Than being 20~140,5~12mm/s of extrusion speed, the dwell time is 10~30s；
(2) by Al-Fe-Cu alloy bar materials, batched after cooling；
Step 4, solution treatment：
(1) the Al-Fe-Cu alloy bar materials after batching, carry out solution treatment, and solid solution temperature is 515~535 DEG C,
The solution treatment time is 5~30min；
(2) by the workpiece after solution treatment, quenched with 60~80 DEG C of warm water；
Step 5, artificial aging：
(1) by the workpiece after quenching, artificial aging treatment is carried out, artificial aging temperature is 155~175 DEG C, artificial aging
Time is 4~8h；
(2) by the workpiece after artificial aging, room temperature is air cooled to, extrusion molding Al-Fe-Cu alloys is obtained.
In the preparation method of above-mentioned extrusion molding Al-Fe-Cu alloys of the invention：
The step 1, smelting temperature is 720~750 DEG C.
In the step 4, the volumetric surface product according to section bar, with due regard to heat conduction time, accordingly extends test specimen in stove
The time of interior solution treatment.
In the step 5, artificial aging treatment is carried out using resistance aging furnace, room temperature is air cooled to after coming out of the stove.
Extrusion molding Al-Fe-Cu alloys of the invention and preparation method thereof, compared with prior art, have the beneficial effect that：
(1) present invention, is heat-treated using short route Technology for Heating Processing to extrusion forming Al-Fe-Cu alloys, is both avoided
Mechanical property caused by traditional T6 techniques heat treatment is improved not significantly, the alloy property has been obtained further raising, and
Technology for Heating Processing flow is simplified, significantly energy saving, reduce production cost；
(2) present invention, while the requirement of alloy performance is met, simplifies Technology for Heating Processing, improves alloy
Heat treatment production efficiency, the production application for extrusion molding Al-Fe-Cu alloys is significant；
(3) alloy of the present invention, microscopic structure is obviously improved, and mechanical property has significant raising.
(4) preparation method of the present invention, technological operation is simple, preferably can be applied in actual production.
Brief description of the drawings
The tissue picture of extrusion molding Al-Fe-Cu alloys prepared by Fig. 1 embodiment of the present invention 1；Wherein, (a) and (b) is right
Answer different multiplication factors；
The tissue picture of the workpiece after quenching prepared by the step 4 of Fig. 2 embodiment of the present invention 1；Wherein, (c) and (d) is corresponding not
Same multiplication factor.
Specific embodiment
Embodiment 1
Extrusion molding Al-Fe-Cu alloys of the invention, constituent and its weight/mass percentage composition are：Fe：5.5%, Cu：
4.0%, Zn：2.0%, Mn：0.5%, Mg：0.4%, balance of Al and inevitable impurity.
The preparation method of extrusion molding Al-Fe-Cu alloys of the invention, comprises the following steps：
Step 1, melting：
By the composition proportion dispensing of extrusion molding Al-Fe-Cu alloys, at 720 DEG C, melting obtains the casting of Al-Fe-Cu alloys
Ingot；
Step 2, the pre-heat treatment：
By Al-Fe-Cu alloy cast ingots, at 400 DEG C, 4h is preheated；
Step 3, extruding：
Extrusion die is preheated into 4h at 400 DEG C, after preheating terminates, mould is fitted into horizontal extruder；
By the Al-Fe-Cu alloy cast ingots after preheating, it is put into extrusion die and is squeezed into Al-Fe-Cu alloy bar materials (size is
Φ 20mm), extrusion forming workpiece is obtained；Wherein, extrusion ratio is 40；
By Al-Fe-Cu alloy bar materials, rolled prepares solution treatment after cooling；
Step 4, solution treatment：
(1) the Al-Fe-Cu alloy bar materials after batching, carry out solution treatment, and solid solution temperature is 525 DEG C, at solid solution
The reason time is 30min；
(2) by the workpiece after solution treatment, quenched with 60 DEG C of warm water after quick tapping；
The tissue picture of the workpiece after quenching is as shown in Figure 2；
Step 5, artificial aging：
(1) by the workpiece after quenching, artificial aging treatment is carried out using resistance aging furnace, artificial aging temperature is 165 DEG C,
The artificial aging time is 8h；
(2) by the workpiece after artificial aging, room temperature is air cooled to after coming out of the stove, extrusion molding Al-Fe-Cu alloys is obtained.
The tissue picture of extrusion molding Al-Fe-Cu alloys manufactured in the present embodiment is as shown in Figure 1；The tension of the alloy is strong
It is 222Mpa to spend, and Brinell hardness is 65HB.
Embodiment 2
Extrusion molding Al-Fe-Cu alloys of the invention, constituent and its weight/mass percentage composition are：Fe：6.0%, Cu：
5.0%, Zn：2.0%, Mn：0.5%, Mg：1.5%, balance of Al and inevitable impurity.
The preparation method of extrusion molding Al-Fe-Cu alloys of the invention, comprises the following steps：
Step 1, melting：
By the composition proportion dispensing of extrusion molding Al-Fe-Cu alloys, at 750 DEG C, melting obtains the casting of Al-Fe-Cu alloys
Ingot；
Step 2, the pre-heat treatment：
By Al-Fe-Cu alloy cast ingots, at 550 DEG C, 2h is preheated；
Step 3, extruding：
Extrusion die is preheated into 4h at 400 DEG C, after preheating terminates, mould is fitted into horizontal extruder；
By the Al-Fe-Cu alloy cast ingots after preheating, it is put into extrusion die and is squeezed into Al-Fe-Cu alloy bar materials (size is
Φ 20mm), extrusion forming workpiece is obtained；Wherein, extrusion ratio is 80；
By Al-Fe-Cu alloy bar materials, rolled prepares solution treatment after cooling；
Step 4, solution treatment：
(1) the Al-Fe-Cu alloy bar materials after batching, carry out solution treatment, and solid solution temperature is 525 DEG C, at solid solution
The reason time is 20min；
(2) by the workpiece after solution treatment, quenched with 60 DEG C of warm water after quick tapping；
Step 5, artificial aging：
(1) by the workpiece after quenching, artificial aging treatment is carried out using resistance aging furnace, artificial aging temperature is 170 DEG C,
The artificial aging time is 6h；
(2) by the workpiece after artificial aging, room temperature is air cooled to after coming out of the stove, extrusion molding Al-Fe-Cu alloys is obtained.
The tensile strength of extrusion molding Al-Fe-Cu alloys manufactured in the present embodiment is 245Mpa, and Brinell hardness is 70HB.
Embodiment 3
Extrusion molding Al-Fe-Cu alloys of the invention, constituent and its weight/mass percentage composition are：Fe：3.0%, Cu：
2.0%, Zn：0.5%, Mn：0.2%, Mg：0.3%, balance of Al and inevitable impurity.
The preparation method of extrusion molding Al-Fe-Cu alloys of the invention, comprises the following steps：
Step 1, melting：
By the composition proportion dispensing of extrusion molding Al-Fe-Cu alloys, at 725 DEG C, melting obtains the casting of Al-Fe-Cu alloys
Ingot；
Step 2, the pre-heat treatment：
By Al-Fe-Cu alloy cast ingots, at 500 DEG C, 3h is preheated；
Step 3, extruding：
Extrusion die is preheated into 4h at 400 DEG C, after preheating terminates, mould is fitted into horizontal extruder；
By the Al-Fe-Cu alloy cast ingots after preheating, it is put into extrusion die and is squeezed into Al-Fe-Cu alloy bar materials (size is
Φ 20mm), extrusion forming workpiece is obtained；Wherein, extrusion ratio is 140；
By Al-Fe-Cu alloy bar materials, rolled prepares solution treatment after cooling；
Step 4, solution treatment：
(1) the Al-Fe-Cu alloy bar materials after batching, carry out solution treatment, and solid solution temperature is 525 DEG C, at solid solution
The reason time is 15min；
(2) by the workpiece after solution treatment, quenched with 60 DEG C of warm water after quick tapping；
Step 5, artificial aging：
(1) by the workpiece after quenching, artificial aging treatment is carried out using resistance aging furnace, artificial aging temperature is 175 DEG C,
The artificial aging time is 5h；
(2) by the workpiece after artificial aging, room temperature is air cooled to after coming out of the stove, extrusion molding Al-Fe-Cu alloys is obtained.
The tensile strength of extrusion molding Al-Fe-Cu alloys manufactured in the present embodiment is 190Mpa, and Brinell hardness is 63HB.
Claims (6)
1. a kind of extrusion molding Al-Fe-Cu alloys, it is characterised in that the constituent and its weight/mass percentage composition of the alloy
For：Fe：3.0~6.0%, Cu：2.0~5.0%, Zn：0.5~2.0%, Mn：0.2~0.5%, Mg：0.3~1.5%, surplus
It is Al and inevitable impurity.
2. extrusion molding Al-Fe-Cu alloys according to claim 1, it is characterised in that the tensile strength of the alloy is
184~245Mpa, Brinell hardness is 63~70HB.
3. the preparation method of the extrusion molding Al-Fe-Cu alloys described in claim 1, it is characterised in that comprise the following steps：
Step 1, melting：
By the composition proportion dispensing of extrusion molding Al-Fe-Cu alloys, melting obtains Al-Fe-Cu alloy cast ingots；
Step 2, the pre-heat treatment：
By Al-Fe-Cu alloy cast ingots, at 380~550 DEG C, 2~4h is preheated；
Step 3, extruding：
(1) by the Al-Fe-Cu alloy cast ingots after preheating, extruded, Al-Fe-Cu alloy bar materials are obtained；Wherein, extrusion ratio is
20~140,5~12mm/s of extrusion speed, the dwell time are 10~30s；
(2) by Al-Fe-Cu alloy bar materials, batched after cooling；
Step 4, solution treatment：
(1) the Al-Fe-Cu alloy bar materials after batching, carry out solution treatment, and solid solution temperature is 515~535 DEG C, solid solution
Process time is 5~30min；
(2) by the workpiece after solution treatment, quenched with 60~80 DEG C of warm water；
Step 5, artificial aging：
(1) by the workpiece after quenching, artificial aging treatment is carried out, artificial aging temperature is 155~175 DEG C, artificial aging time
It is 4~8h；
(2) by the workpiece after artificial aging, room temperature is air cooled to, extrusion molding Al-Fe-Cu alloys is obtained.
4. the preparation method of extrusion molding Al-Fe-Cu alloys according to claim 3, it is characterised in that the step 1,
Smelting temperature is 720~750 DEG C.
5. the preparation method of extrusion molding Al-Fe-Cu alloys according to claim 3, it is characterised in that the step 5
In, artificial aging treatment is carried out using resistance aging furnace, it is air cooled to room temperature after coming out of the stove.
6. the preparation method of extrusion molding Al-Fe-Cu alloys according to claim 3, it is characterised in that methods described system
The tensile strength of standby extrusion molding Al-Fe-Cu alloys is 184~245Mpa, and Brinell hardness is 63~70HB.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060021683A1 (en) * | 2004-07-28 | 2006-02-02 | Lin Jen C | An Al-Si-Mg-Zn-Cu alloy for aerospace and automotive castings |
| CN101979692A (en) * | 2010-11-24 | 2011-02-23 | 中国兵器工业第五九研究所 | Al-Zn-Mg-Cu aluminum alloy with ultra-high strength and preparation process thereof |
| CN102011037A (en) * | 2010-12-10 | 2011-04-13 | 北京工业大学 | Rare earth Er microalloyed Al-Zn-Mg-Cu alloy and preparation method thereof |
| CN103014459A (en) * | 2012-12-21 | 2013-04-03 | 中南大学 | High-Zn, high-Mg and low-Cu ultrahigh-strength corrosion-resisting aluminum alloy and heat treatment method |
| CN103160713A (en) * | 2011-12-08 | 2013-06-19 | 沈阳工业大学 | Semi-solid extrusion of hypereutectic Al-Fe alloy, and heat treatment method |
-
2017
- 2017-01-23 CN CN201710057840.5A patent/CN106756282B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060021683A1 (en) * | 2004-07-28 | 2006-02-02 | Lin Jen C | An Al-Si-Mg-Zn-Cu alloy for aerospace and automotive castings |
| CN101979692A (en) * | 2010-11-24 | 2011-02-23 | 中国兵器工业第五九研究所 | Al-Zn-Mg-Cu aluminum alloy with ultra-high strength and preparation process thereof |
| CN102011037A (en) * | 2010-12-10 | 2011-04-13 | 北京工业大学 | Rare earth Er microalloyed Al-Zn-Mg-Cu alloy and preparation method thereof |
| CN103160713A (en) * | 2011-12-08 | 2013-06-19 | 沈阳工业大学 | Semi-solid extrusion of hypereutectic Al-Fe alloy, and heat treatment method |
| CN103014459A (en) * | 2012-12-21 | 2013-04-03 | 中南大学 | High-Zn, high-Mg and low-Cu ultrahigh-strength corrosion-resisting aluminum alloy and heat treatment method |
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