CN106544558A - A kind of high-strength aluminum alloy rivet line and preparation method thereof - Google Patents

A kind of high-strength aluminum alloy rivet line and preparation method thereof Download PDF

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CN106544558A
CN106544558A CN201710026317.6A CN201710026317A CN106544558A CN 106544558 A CN106544558 A CN 106544558A CN 201710026317 A CN201710026317 A CN 201710026317A CN 106544558 A CN106544558 A CN 106544558A
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aluminium
alloy
aluminum
melt
preparation
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CN106544558B (en
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於国良
吴振江
叶青岚
黄新民
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SHANDONG TAIYI METAL SCIENCE & TECHNOLOGY Co.,Ltd.
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吴振江
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/06Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08Alloys based on aluminium with magnesium as the next major constituent with silicon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16Controlling or regulating processes or operations
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/02Making non-ferrous alloys by melting
    • C22C1/026Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/02Making non-ferrous alloys by melting
    • C22C1/03Making non-ferrous alloys by melting using master alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047Changing 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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  • Crystallography & Structural Chemistry (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Continuous Casting (AREA)

Abstract

The present invention relates to a kind of high-strength aluminum alloy rivet line and preparation method thereof.The present invention is compared with prior art; high-strength aluminum alloy rivet line according to embodiments of the present invention; alloying is carried out using multielement; carry out master alloy particleization and prepare addition; the technologies such as integrated use high temperature high-speed melting-aluminium, electromagnetic agitation; subregion temperature control directional solidification, continuous casting, cold rolling, multi-pass heat treatment and drawing process, can prepare the rivet wire rod of high intensity, high shear strength, plasticity and tenacity excellent, excellent anti-corrosion performance;And then can reduce riveting weight and cost, and improve the security performance of riveting.

Description

A kind of high-strength aluminum alloy rivet line and preparation method thereof
Technical field
The invention belongs to metal material field, is related to a kind of Aluminum alloy rivet line and preparation method thereof, more particularly to it is a kind of High-strength aluminum alloy rivet line and preparation method thereof.
Background technology
Rivet is that, using self-deformation or the interference part that is riveted of connection, which is widely used in building, automobile, ship, winged On the products such as machine, machine, electrical equipment, furniture.By materials classification, rivet is broadly divided into metal material rivet and non-metallic plastic riveting Nail;And metal material rivet is broadly divided into the rivet of the rivet and aluminum alloy materials of stainless steel.
Rivet is that with made by wire rod, the performance of wire rod has been largely fixed the performance of rivet, how manufacturing property Excellent rivet wire rod, it is most important.
The rivet of stainless steel material, strength-weight ratio are low, and in order to meet practical application request, need through zinc-plated place Reason, production cost are high, and complex process has contaminative to environment.
The rivet of existing aluminum alloy materials, intensity and plasticity all can not meet growing application demand well.It is high Intensity, lightweight are the developing direction of rivet bar, and particularly in fields such as high ferro, Aero-Space, its primary structural material is Aluminium alloy.The aluminum design of such as commercial aircraft accounts for the 60%-80% of the total net quality of aircraft with the net quality of parts.How to adopt High strength-weight ratio, the Aluminum alloy rivet with excellent plasticity, between reduction rivet and structural member, contact corrosion tendency is same When, riveting security reliability is improved, it is significant.
Before the present invention is completed, there is not yet with preparation method identical high-strength aluminum alloy rivet line of the present invention produce Product, also have not seen on the books in the literature with the preparation method of identical high-strength aluminum alloy rivet line of the present invention.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention is intended to provide a kind of high-strength aluminum alloy rivet line and high intensity The preparation method of Aluminum alloy rivet line.
The present invention adopts the technologies such as multi-element alloyed composition proportion, comprehensive utilization rapid melting, electromagnetic agitation, innovatively Partition heating temperature control is carried out to crystallizer, it is quick to be formed along the equally distributed tiny isometry nucleus of forming direction, by crystallization Device cooling control, enable aluminum alloy to melt with along the equally distributed tiny isometry nucleus of forming direction as forming core core, it is outer by solidification Shell quickly forms tiny equiax crystal to core, obtains excellent aluminum alloy organization;Coordinate rolling, heat treatment and the drawing of optimization Technique, realizes that the wire forming with excellent properties is processed.
According to an aspect of the present invention, a kind of high-strength aluminum alloy rivet line, the aluminium alloy conductor is by weight percentage Comprising following element:Ferrum Fe 0.15%-0.45%, silicon Si 0.10%-0.30%, copper Cu 0.05%-0.20%, scandium Sc 0.01%-0.65%, cerium Ce 0.001%-0.15%, magnesium Mg 2.5%-5.8%, chromium Cr 0.05%-0.25%, nickel 0.002%-0.02%, zinc Zn 0.12%-0.25%, boron 0.001%-0.005%, balance of aluminum Al.
Exemplary embodiment of the invention, a diameter of 1.43mm-6.01mm of the high-strength aluminum alloy rivet line; The intensity of the high-strength aluminum alloy rivet line and rivet be 340MPa-585MPa, elongation percentage >=19%, shear strength >= 319MPa。
According to a further aspect in the invention, a kind of preparation method of high-strength aluminum alloy rivet line, including:
Step one:Aluminium intermediate alloy particle preparation
Aluminium intermediate alloy ingot is melted, continuous casting obtains aluminium intermediate alloy bar, then the cut-out of aluminium intermediate alloy bar is made straight Footpath is 12mm, length (i.e. height) is the cylinder granule of 25mm, and particle weight is 9g-20g;
Step 2:Dispensing
By weight percentage:Ferrum Fe 0.15%-0.45%, silicon Si 0.10%-0.30%, copper Cu 0.05%- 0.20%, scandium Sc 0.01%-0.65%, cerium Ce 0.001%-0.15%, magnesium Mg 2.5%-5.8%, chromium Cr 0.05%- 0.25%, nickel 0.002%-0.02%, zinc Zn 0.12%-0.25%, boron 0.001%-0.005%, balance of aluminum Al, Dispensing is carried out, to prepare aluminium ingot and aluminium intermediate alloy granule;
Step 3:Aluminium ingot rapid melting
Using high-speed melting-aluminium composite stove, using 1350 DEG C of high-temperature furnace gas and aluminium ingot described in forehearth aluminum melt submergence, realize Rapid melting, obtains 755 DEG C of aluminum melts;
Step 4:Insulation, refine
The aluminum melt is shifted to kettle furnace, electromagnetic agitation processes 10min-15min;Then 30min is stood, is removed Aluminum melt is simultaneously warming up to 780 DEG C by slag;
Step 5:Alloying
Rifle is penetrated using pneumatic charging aluminium intermediate alloy granule is uniformly mapped in holding furnace in aluminum melt, realize closing in the middle of aluminum Gold rapid melting and be uniformly distributed;To aluminum melt insulation 30min in holding furnace, electromagnetic agitation 10min-15min is carried out;Utilize Online refining furnace carries out refining treatment, except Slag treatment, stands 20min;Obtain aluminium alloy melt;
Step 6:Cast
The aluminium alloy melt after the process of online refining furnace was carried out using the ultra-fine corundum filter plate of such as 120 purposes Filter, the impurity that more than 10 μm of removal diameter, and make which make casting ladle in inflow, lower casting ladle is flowed into after flow controller;
Step 7:Directional solidification
The outside of rectangular crystal crystallizer arranges 2 solenoids, covers crystallizer periphery;The entrance of crystallizer is provided with 1 Annular frequency multiplication heater, middle part, exit are respectively mounted 2 ring-type coolers and temperature measurer, control crystallizer axial temperature point Cloth is:655 DEG C -665 DEG C of porch, it is middle 600 DEG C -610 DEG C, 590 DEG C -600 DEG C are exported, to aluminium alloy melt directional solidification, Obtain semi-solid aluminium alloy melt;
Step 8:Continuous casting
Continuous casting, installs efficient condenser in crystallizer end, adopts pressure and circulates for 0.6MPa-1Mpa, by water cooling The condensing agent for using, carries out continuous cooling to semi solid aluminum alloy melt, obtains the continuous casting aluminium alloy rod of Φ 9.0- Φ 16mm;
Step 9:Finish rolling
Finish rolling, using three-roller Y shaped rolling mill roll, and using emulsion as rolling lubricant and coolant, by aluminium alloy rod It is cold rolled to the aluminium alloy wires of a diameter of 4.7mm-8.5mm;
Step 10:Multiple tracks heat treatment and the combination for drawing, for example, through the one-to-one heat treatment of multiple tracks and drawing, or Person is through the one-to-one heat treatment of multiple tracks and draws and after finally carrying out heat treatment, obtains the wire rod of regulation performance and specification, For example, high-strength aluminum alloy rivet line.
Exemplary embodiment of the invention, heat treatment method be by aluminium alloy wires be heated to temperature for 390 DEG C- 430 DEG C, after reaching design temperature, 2h-4h is incubated, air cooling is to room temperature;
Exemplary embodiment of the invention, section compression ratio when finished wire rod draws (i.e. together last draw) is 30%-35%, section compression ratio during drawing (remaining each road i.e. in addition to last drawing together draws) of remaining each passage For 40%-50%, and using the wire-drawing die with carbide coating or diamond wire drawing grinding tool when drawing.The lubrication of mould High-pressure injection lubricating oil, lubricating oil is adopted to adopt filter-press at oil-in, the diameter in filtering lubricant oil is more than 5 μm Alumina particles.
Compared with prior art, high-strength aluminum alloy rivet line according to embodiments of the present invention, with equal along forming direction The tiny equiax crystal of even distribution, so as to mechanical performances such as excellent intensity, shear strength and elongation percentage;By alloying unit The crystal grain of element tissue, significantly reduces the anti-stress corrosiveness of aluminium alloy wires.Additionally, high intensity aluminum according to embodiments of the present invention Alloy rivet line, when connecting al member with part using which, due to electrodeless potential difference between rivet and structural member, can avoid Contact corrosion between dissimilar metal;Simultaneously high strength-weight ratio, high shear strength and excellent plasticity and toughness, can be with While riveting weight is greatly reduced, riveting security reliability is significantly improved.
Specific embodiment
To make technical solution of the present invention and advantage clearer, the present invention is made into one by following specific embodiment Step is described in detail.Obviously, described embodiment is a part of embodiment of the invention, rather than the embodiment of whole.Based on this Embodiment in invention, it is every other that those of ordinary skill in the art are obtained on the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Embodiment 1:
The preparation process of high-strength aluminum alloy rivet line is as follows:
Step one:Aluminium intermediate alloy particle preparation
Aluminium intermediate alloy ingot is melted, continuous casting obtains aluminium intermediate alloy bar, then the cut-out of aluminium intermediate alloy bar is made straight Footpath is 12mm, length (that is, height) is the cylinder granule of 25mm, and particle weight is 9g-20g;
Step 2:Dispensing
By weight percentage:Ferrum Fe 0.15%, silicon Si 0.12%, copper Cu 0.08%, scandium Sc 0.03%, cerium Ce 0.008%, magnesium Mg 2.5%, chromium Cr 0.05%, nickel 0.008%, zinc Zn 0.15%, boron 0.003%, balance of aluminum Al, carries out dispensing, to prepare aluminium ingot and aluminium intermediate alloy granule;
Step 3:Aluminium ingot rapid melting
Using high-speed melting-aluminium composite stove, using 1350 DEG C of high-temperature furnace gas and aluminium ingot described in forehearth aluminum melt submergence, realize Rapid melting, obtains 755 DEG C of aluminum melts;
Step 4:Insulation, refine
The aluminum melt is shifted to kettle furnace, electromagnetic agitation processes 15min;Then 30min is stood, is removed the gred and is incited somebody to action Aluminum melt is warming up to 780 DEG C;
Step 5:Alloying
Rifle is penetrated using pneumatic charging aluminium intermediate alloy granule is uniformly mapped in holding furnace in aluminum melt, realize closing in the middle of aluminum Gold rapid melting and be uniformly distributed;To aluminum melt insulation 30min in holding furnace, electromagnetic agitation 15min is carried out;Using online Refining furnace carries out refining treatment, except Slag treatment, stands 20min;Obtain aluminium alloy melt;
Step 6:Cast
The aluminium alloy melt after the process of online refining furnace is filtered using the ultra-fine corundum filter plate of 120 mesh, removed The impurity that more than 10 μm of diameter, and make which make casting ladle in inflow, lower casting ladle is flowed into after flow controller;
Step 7:Directional solidification
The outside of rectangular crystal crystallizer arranges 2 solenoids, covers crystallizer periphery;The entrance of crystallizer is provided with 1 Annular frequency multiplication heater, middle part, exit are respectively mounted 2 ring-type coolers and temperature measurer, control crystallizer axial temperature point Cloth is:655 DEG C -665 DEG C of porch, it is middle 600 DEG C -610 DEG C, 590 DEG C -600 DEG C are exported, to aluminium alloy melt directional solidification, Obtain semi-solid aluminium alloy melt;
Step 8:Continuous casting
Continuous casting, installs efficient condenser in crystallizer end, adopts pressure for 0.6MPa, by water cooling recycling Condensing agent, carries out continuous cooling to semi solid aluminum alloy melt, obtains the continuous casting aluminium alloy rod of Φ 9.0;
Step 9:Finish rolling
Finish rolling, using three-roller Y shaped rolling mill roll, and using emulsion as rolling lubricant and coolant, by aluminium alloy rod It is cold rolled to the aluminium alloy wires of a diameter of 4.7mm;
Step 10:First time heat treatment
Aluminium alloy wires is heated to into temperature for 410 DEG C -415 DEG C, after reaching design temperature, 2h is incubated, air cooling is to room temperature;
Step 11:Draw for the first time
Using the wire-drawing die with carbide coating, high-pressure injection lubricating oil, profit at the lubricating oil inlet of mould, are adopted Lubricating oil adopts filter-press, alumina particles of the diameter in filtering lubricant oil more than 5 μm;Section compression ratio is 40%, will be rolled Pole stock after system through first time heat treatment is drawn into the aluminium alloy wires of a diameter of 3.64mm;
Step 12:Second heat treatment
The aluminium alloy wires of a diameter of 3.64mm is heated to into temperature for 400 DEG C -405 DEG C, is incubated after reaching design temperature 2h, air cooling is to room temperature;
Step 13:Draw for second
Using carbide coating wire-drawing die, high-pressure injection lubricating oil, lubricating oil at the lubricating oil inlet of mould, is adopted to adopt With filter-press, alumina particles of the diameter in filtering lubricant oil more than 5 μm;Section compression ratio is 30%, will be through second The aluminium alloy wires of secondary heat treatment is drawn into the high-strength aluminum alloy rivet line of a diameter of 3.05mm.
The high-strength aluminum alloy rivet line of 3.05mm according to obtained in the present embodiment, tensile strength is 450MPa, elongation percentage For 22%, shear strength is 358MPa.
Embodiment 2:
The preparation process of high-strength aluminum alloy rivet line is as follows:
Step one:Aluminium intermediate alloy particle preparation
Aluminium intermediate alloy ingot is melted, continuous casting obtains aluminium intermediate alloy bar, then the cut-out of aluminium intermediate alloy bar is made straight The cylinder granule that footpath is 12mm, length is 25mm, particle weight is 9g-20g;
Step 2:Dispensing
By weight percentage:Ferrum Fe 0.2%, silicon Si 0.15%, copper Cu 0.05%, scandium Sc 0.04%, cerium Ce 0.003%, magnesium Mg 2.9%, chromium Cr 0.08%, nickel 0.005%, zinc Zn 0.15%, boron 0.002%, balance of aluminum Al, carries out dispensing, to prepare aluminium ingot and aluminium intermediate alloy granule;
Step 3:Aluminium ingot rapid melting
Using high-speed melting-aluminium composite stove, using 1350 DEG C of high-temperature furnace gas and aluminium ingot described in forehearth aluminum melt submergence, realize Rapid melting, obtains 755 DEG C of aluminum melts;
Step 4:Insulation, refine
The aluminum melt is shifted to kettle furnace, electromagnetic agitation processes 15min;Then 30min is stood, is removed the gred and is incited somebody to action Aluminum melt is warming up to 780 DEG C;
Step 5:Alloying
Rifle is penetrated using pneumatic charging aluminium intermediate alloy granule is uniformly mapped in holding furnace in aluminum melt, realize closing in the middle of aluminum Gold rapid melting and be uniformly distributed;To aluminum melt insulation 30min in holding furnace, electromagnetic agitation 15min is carried out;Using online Refining furnace carries out refining treatment, except Slag treatment, stands 20min;Obtain aluminium alloy melt;
Step 6:Cast
The aluminium alloy melt after the process of online refining furnace is filtered using the ultra-fine corundum filter plate of 120 mesh, removed The impurity that more than 10 μm of diameter, and make which make casting ladle in inflow, lower casting ladle is flowed into after flow controller;
Step 7:Directional solidification
The outside of rectangular crystal crystallizer arranges 2 solenoids, covers crystallizer periphery;The entrance of crystallizer is provided with 1 Annular frequency multiplication heater, middle part, exit are respectively mounted 2 ring-type coolers and temperature measurer, control crystallizer axial temperature point Cloth is:655 DEG C -665 DEG C of porch, it is middle 600 DEG C -610 DEG C, 590 DEG C -600 DEG C are exported, to aluminium alloy melt directional solidification, Obtain semi-solid aluminium alloy melt;
Step 8:Continuous casting
Continuous casting, installs efficient condenser in crystallizer end, adopts pressure for 0.8Mpa, by water cooling recycling Condensing agent, carries out continuous cooling to semi solid aluminum alloy melt, obtains the continuous casting aluminium alloy rod of Φ 9.0;
Step 9:Finish rolling
Finish rolling, using three-roller Y shaped rolling mill roll, and using emulsion as rolling lubricant and coolant, by aluminium alloy rod It is cold rolled to the aluminium alloy wires of a diameter of 4.7mm;
Step 10:First time heat treatment
Aluminium alloy wires is heated to into temperature for 410 DEG C -415 DEG C, after reaching design temperature, 2h is incubated, air cooling is to room temperature;
Step 11:Draw for the first time
Using the wire-drawing die with carbide coating, high-pressure injection lubricating oil, profit at the lubricating oil inlet of mould, are adopted Lubricating oil adopts filter-press, alumina particles of the diameter in filtering lubricant oil more than 5 μm;Section compression ratio is 50%, will be rolled Pole stock after system through first time heat treatment is drawn into the aluminium alloy wires of a diameter of 3.33mm;
Step 12:Second heat treatment
The aluminium alloy wires of a diameter of 3.33mm is heated to into temperature for 400 DEG C -405 DEG C, is incubated after reaching design temperature 2h, air cooling is to room temperature;
Step 13:Draw for second
Using carbide coating wire-drawing die, high-pressure injection lubricating oil, lubricating oil at the lubricating oil inlet of mould, is adopted to adopt With filter-press, alumina particles of the diameter in filtering lubricant oil more than 5 μm;Section compression ratio is 50%, will be through second The aluminium alloy wires of secondary heat treatment is drawn into the aluminium alloy wire of a diameter of 2.35mm;
Step 14:Third time heat treatment
Aluminium alloy wires is heated to into temperature for 395 DEG C -400 DEG C, after reaching design temperature, 2h is incubated, air cooling is to room temperature;
Step 15:Third time draws
Using carbide coating wire-drawing die, high-pressure injection lubricating oil, lubricating oil at the lubricating oil inlet of mould, is adopted to adopt With filter-press, alumina particles of the diameter in filtering lubricant oil more than 5 μm;Section compression ratio is 50%, will be through second The aluminium alloy wires of secondary heat treatment is drawn into a diameter of 1.66mm high-strength aluminum alloys rivet line;
Step 10 six:4th heat treatment
High-strength aluminum alloy rivet line is heated to into temperature for 390 DEG C -395 DEG C, after reaching design temperature, 2h, air cooling is incubated To room temperature.
The high-strength aluminum alloy rivet line of 1.66mm according to obtained in the present embodiment, tensile strength is 380MPa, elongation percentage For 25%, shear strength is 319MPa.
Embodiment 3:
The preparation process of high-strength aluminum alloy rivet line is as follows:
Step one:Aluminium intermediate alloy particle preparation
Aluminium intermediate alloy ingot is melted, continuous casting obtains aluminium intermediate alloy bar, then the cut-out of aluminium intermediate alloy bar is made straight The cylinder granule that footpath is 12mm, length is 25mm, particle weight is 9g-20g;
Step 2:Dispensing
By weight percentage:Ferrum Fe 0.16%, silicon Si 0.10%, copper Cu 0.12%, scandium Sc 0.05%, cerium Ce 0.025%, magnesium Mg 3.1%, chromium Cr 0.08%, nickel 0.003%, zinc Zn 0.18%, boron 0.002%, balance of aluminum Al, carries out dispensing, to prepare aluminium ingot and aluminium intermediate alloy granule;
Step 3:Aluminium ingot rapid melting
Using high-speed melting-aluminium composite stove, using 1350 DEG C of high-temperature furnace gas and aluminium ingot described in forehearth aluminum melt submergence, realize Rapid melting, obtains 755 DEG C of aluminum melts;
Step 4:Insulation, refine
The aluminum melt is shifted to kettle furnace, electromagnetic agitation processes 15min;Then 30min is stood, is removed the gred and is incited somebody to action Aluminum melt is warming up to 780 DEG C;
Step 5:Alloying
Rifle is penetrated using pneumatic charging aluminium intermediate alloy granule is uniformly mapped in holding furnace in aluminum melt, realize closing in the middle of aluminum Gold rapid melting and be uniformly distributed;To aluminum melt insulation 30min in holding furnace, electromagnetic agitation 15min is carried out;Using online Refining furnace carries out refining treatment, except Slag treatment, stands 20min;Obtain aluminium alloy melt;
Step 6:Cast
The aluminium alloy melt after the process of online refining furnace is filtered using the ultra-fine corundum filter plate of 120 mesh, removed The impurity that more than 10 μm of diameter, and make which make casting ladle in inflow, lower casting ladle is flowed into after flow controller;
Step 7:Directional solidification
The outside of rectangular crystal crystallizer arranges 2 solenoids, covers crystallizer periphery;The entrance of crystallizer is provided with 1 Annular frequency multiplication heater, middle part, exit are respectively mounted 2 ring-type coolers and temperature measurer, control crystallizer axial temperature point Cloth is:655 DEG C -665 DEG C of porch, it is middle 600 DEG C -610 DEG C, 590 DEG C -600 DEG C are exported, to aluminium alloy melt directional solidification, Obtain semi-solid aluminium alloy melt;
Step 8:Continuous casting
Continuous casting, installs efficient condenser in crystallizer end, adopts pressure for 0.8Mpa, by water cooling recycling Condensing agent, carries out continuous cooling to semi solid aluminum alloy melt, obtains the continuous casting aluminium alloy rod of Φ 9.5;
Step 9:Finish rolling
Finish rolling, using three-roller Y shaped rolling mill roll, and using emulsion as rolling lubricant and coolant, by aluminium alloy rod It is cold rolled to the aluminium alloy wires of a diameter of 5mm;
Step 10:First time heat treatment
Aluminium alloy wires is heated to into temperature for 400 DEG C -415 DEG C, after reaching design temperature, 2h is incubated, air cooling is to room temperature;
Step 11:Draw for the first time
Using the wire-drawing die with carbide coating, high-pressure injection lubricating oil, profit at the lubricating oil inlet of mould, are adopted Lubricating oil adopts filter-press, alumina particles of the diameter in filtering lubricant oil more than 5 μm;Section compression ratio is 50%, will be rolled Pole stock after system through first time heat treatment is drawn into the aluminium alloy wires of a diameter of 3.53mm;
Step 12:Second heat treatment
The aluminium alloy wires of a diameter of 3.53mm is heated to into temperature for 400 DEG C -410 DEG C, is incubated after reaching design temperature 2h, air cooling is to room temperature;
Step 13:Draw for second
Using carbide coating wire-drawing die, high-pressure injection lubricating oil, lubricating oil at the lubricating oil inlet of mould, is adopted to adopt With filter-press, alumina particles of the diameter in filtering lubricant oil more than 5 μm;Section compression ratio is 50%, will be through second The aluminium alloy wires of secondary heat treatment is drawn into the aluminium alloy wire of a diameter of 2.50mm;
Step 14:Third time heat treatment
Aluminium alloy wires is heated to into temperature for 400 DEG C -410 DEG C, after reaching design temperature, 2h is incubated, air cooling is to room temperature;
Step 15:Third time draws
Using carbide coating wire-drawing die, high-pressure injection lubricating oil, lubricating oil at the lubricating oil inlet of mould, is adopted to adopt With filter-press, alumina particles of the diameter in filtering lubricant oil more than 5 μm;Section compression ratio is 50%, will be through second The aluminium alloy wires of secondary heat treatment is drawn into the aluminium alloy wire of a diameter of 1.77mm;
Step 10 six:4th heat treatment
Aluminium alloy wires is heated to into temperature for 390 DEG C -400 DEG C, after reaching design temperature, 2h is incubated, air cooling is to room temperature;
Step 10 seven:4th drawing
Using diamond wire-drawing die, high-pressure injection lubricating oil at the lubricating oil inlet of mould, is adopted, lubricating oil is using pressure Power filter, alumina particles of the diameter in filtering lubricant oil more than 5 μm;Section compression ratio is 35%, will be through second heat The aluminium alloy wires of process is drawn into the high-strength aluminum alloy rivet line of a diameter of 1.43mm.
The high-strength aluminum alloy rivet line of 1.43mm according to obtained in the present embodiment, tensile strength is 585MPa, elongation percentage For 21%, shear strength is 380MPa.
Embodiment 4:
The preparation process of high-strength aluminum alloy rivet line is as follows:
Step one:Aluminium intermediate alloy particle preparation
Aluminium intermediate alloy ingot is melted, continuous casting obtains aluminium intermediate alloy bar, then the cut-out of aluminium intermediate alloy bar is made straight The cylinder granule that footpath is 12mm, length is 25mm, particle weight is 9g-20g;
Step 2:Dispensing
By weight percentage:Ferrum Fe 0.18%, silicon Si 0.21%, copper Cu 0.15%, scandium Sc 0.32%, cerium Ce 0.002%, magnesium Mg 4.1%, chromium Cr 0.18%, nickel 0.009%, zinc Zn 0.12%, boron 0.003%, balance of aluminum Al, carries out dispensing, to prepare aluminium ingot and aluminium intermediate alloy granule;
Step 3:Aluminium ingot rapid melting
Using high-speed melting-aluminium composite stove, using 1350 DEG C of high-temperature furnace gas and aluminium ingot described in forehearth aluminum melt submergence, realize Rapid melting, obtains 755 DEG C of aluminum melts;
Step 4:Insulation, refine
The aluminum melt is shifted to kettle furnace, electromagnetic agitation processes 15min;Then 30min is stood, is removed the gred and is incited somebody to action Aluminum melt is warming up to 780 DEG C;
Step 5:Alloying
Rifle is penetrated using pneumatic charging aluminium intermediate alloy granule is uniformly mapped in holding furnace in aluminum melt, realize closing in the middle of aluminum Gold rapid melting and be uniformly distributed;To aluminum melt insulation 30min in holding furnace, electromagnetic agitation 15min is carried out;Using online Refining furnace carries out refining treatment, except Slag treatment, stands 20min;Obtain aluminium alloy melt;
Step 6:Cast
The aluminium alloy melt after the process of online refining furnace is filtered using the ultra-fine corundum filter plate of 120 mesh, removed The impurity that more than 10 μm of diameter, and make which make casting ladle in inflow, lower casting ladle is flowed into after flow controller;
Step 7:Directional solidification
The outside of rectangular crystal crystallizer arranges 2 solenoids, covers crystallizer periphery;The entrance of crystallizer is provided with 1 Annular frequency multiplication heater, middle part, exit are respectively mounted 2 ring-type coolers and temperature measurer, control crystallizer axial temperature point Cloth is:655 DEG C -665 DEG C of porch, it is middle 600 DEG C -610 DEG C, 590 DEG C -600 DEG C are exported, to aluminium alloy melt directional solidification, Obtain semi-solid aluminium alloy melt;
Step 8:Continuous casting
Continuous casting, installs efficient condenser in crystallizer end, adopts pressure for 1Mpa, by the cold of water cooling recycling Solidifying agent, carries out continuous cooling to semi solid aluminum alloy melt, obtains the continuous casting aluminium alloy rod of Φ 16mm;
Step 9:Finish rolling
Finish rolling, using three-roller Y shaped rolling mill roll, and using emulsion as rolling lubricant and coolant, by aluminium alloy rod It is cold rolled to the aluminium alloy wires of a diameter of 8.5mm;
Step 10:First time heat treatment
Aluminium alloy wires is heated to into temperature for 420 DEG C -430 DEG C, after reaching design temperature, 2h is incubated, air cooling is to room temperature;
Step 11:Draw for the first time
Using the wire-drawing die with carbide coating, high-pressure injection lubricating oil, profit at the lubricating oil inlet of mould, are adopted Lubricating oil adopts filter-press, alumina particles of the diameter in filtering lubricant oil more than 5 μm;Section compression ratio is 50%, will be rolled Pole stock after system through first time heat treatment is drawn into the aluminium alloy wires of a diameter of 6.01mm;
The high-strength aluminum alloy rivet line of 6.01mm according to obtained in the present embodiment, tensile strength is 562MPa, elongation percentage For 19%, shear strength is 352MPa.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect Describe in detail, the be should be understood that specific embodiment that the foregoing is only the present invention is not intended to limit the present invention Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include Within protection scope of the present invention.

Claims (9)

1. a kind of high-strength aluminum alloy rivet line, it is characterised in that the high-strength aluminum alloy rivet line aluminium alloy conductor is by weight Amount percentage ratio includes following element:Ferrum Fe 0.15%-0.45%, silicon Si 0.10%-0.30%, copper Cu 0.05%- 0.20%, scandium Sc 0.01%-0.65%, cerium Ce 0.001%-0.15%, magnesium Mg 2.5%-5.8%, chromium Cr 0.05%- 0.25%, nickel 0.002%-0.02%, zinc Zn 0.12%-0.25%, boron 0.001%-0.005%, balance of aluminum Al.
2. high-strength aluminum alloy rivet line according to claim 1, it is characterised in that the high-strength aluminum alloy rivet line A diameter of 1.43mm-6.01mm;The intensity of the high-strength aluminum alloy rivet line and rivet is 340MPa-585MPa, is extended Rate >=19%, shear strength >=319MPa.
3. a kind of preparation method of high-strength aluminum alloy rivet line, it is characterised in that methods described includes:
Prepare aluminium intermediate alloy granule;
Dispensing is carried out to following component by weight percentage:Ferrum Fe 0.15%-0.45%, silicon Si 0.10%-0.30%, copper Cu 0.05%-0.20%, scandium Sc 0.01%-0.65%, cerium Ce 0.001%-0.15%, magnesium Mg 2.5%-5.8%, chromium Cr 0.05%-0.25%, nickel 0.002%-0.02%, zinc Zn 0.12%-0.25%, boron 0.001%-0.005%, surplus For aluminum Al, aluminium ingot and aluminium intermediate alloy granule are prepared with this;
The aluminium ingot is melted using high-speed melting-aluminium composite stove, obtain 755 DEG C of aluminum melts;
The aluminum melt is shifted to kettle furnace, electromagnetic agitation process is carried out, mixing time is 10min-15min;Then 30min is stood, 780 DEG C are removed the gred and be warming up to;
Rifle is penetrated using pneumatic charging aluminium intermediate alloy granule is uniformly mapped in holding furnace in aluminum melt;To aluminum melt in holding furnace Insulation 30min, carries out electromagnetic agitation, and mixing time is 10min-15min;Refining treatment is carried out using online refining furnace, is removed Slag treatment;Stand 20min;
Cast, is filtered to the aluminium alloy melt after the process of online refining furnace using ultra-fine corundum filter plate, and makes which Casting ladle in inflow, flows into lower casting ladle after flow controller;
To aluminium alloy melt directional solidification, semi-solid aluminium alloy melt is obtained;
Continuous casting, obtains the continuous casting aluminium alloy rod of a diameter of 9mm-16mm;
Finish rolling, obtains the aluminium alloy wires of a diameter of 4.7mm-8.5mm;
Through multiple tracks heat treatment and drawing, the high-strength aluminum alloy rivet line is obtained.
4. preparation method according to claim 3, it is characterised in that the aluminium intermediate alloy granule be a diameter of 12mm, Cylinder granule of the length for 25mm, particle weight is 9g-20g;The aluminium intermediate alloy granule is by by aluminium intermediate alloy Fusing, continuous casting obtain aluminium intermediate alloy bar, then make the cut-out of aluminium intermediate alloy bar.
5. preparation method according to claim 3, it is characterised in that the aluminium alloy melt directional solidification includes:Growing The outside of cube crystallizer is provided with 2 solenoids;The entrance of crystallizer is provided with 1 annular frequency multiplication heater, middle part, exit 2 ring-type coolers and temperature measurer are respectively mounted, controlling crystallizer Axial Temperature Distribution is:655 DEG C -665 DEG C of porch, it is middle 600 DEG C -610 DEG C, export 590 DEG C -600 DEG C.
6. preparation method according to claim 5, it is characterised in that the continuous casting includes:Install high in crystallizer end Effect condenser, adopts pressure for 0.6MPa-1Mpa, the condensing agent recycled by water cooling, to semi solid aluminum alloy melt Continuous cooling is carried out, the continuous casting aluminium alloy rod of a diameter of 9.0mm-16mm is obtained.
7. preparation method according to claim 3, it is characterised in that the finish rolling includes:Rolled using three-roller Y shaped milling train Roller, and using emulsion as rolling lubricant and coolant, continuous casting aluminium alloy rod is cold rolled to into the line of a diameter of 4.7mm-8.5mm Material.
8. preparation method according to claim 3, it is characterised in that the heat treatment includes:Aluminium alloy wires is heated To 390 DEG C -430 DEG C, after reaching design temperature, 2h-4h is incubated, air cooling is to room temperature.
9. preparation method according to claim 3, it is characterised in that section compression ratio when finished wire rod draws is 30%-35%, the section compression ratio during drawing of remaining each passage are 40%-50%.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108085544A (en) * 2017-12-15 2018-05-29 吴振江 Fastener high-strength aluminum alloy material and preparation method thereof
CN108262576A (en) * 2018-01-26 2018-07-10 吴振江 Aluminium alloy welding wire and its manufacturing method
CN110042285A (en) * 2019-05-23 2019-07-23 江苏亨通电力特种导线有限公司 Rivet high-strength aluminium-magnesium alloy wire and preparation method thereof
CN112126831A (en) * 2020-09-10 2020-12-25 江苏科源铝业有限公司 Bright anticorrosive aluminum profile and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012058542A2 (en) * 2010-10-29 2012-05-03 Alcoa Inc. Improved 5xxx aluminum alloys, and methods for producing the same
CN106119612A (en) * 2016-06-14 2016-11-16 江苏亨通电力特种导线有限公司 Strength aluminium alloy material and preparation method thereof in one

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
娄燕雄: "《铝线生产》", 31 December 2010, 中南大学出版社 *
王祝堂等: "《轨道车辆用铝材手册》", 30 November 2013, 中南大学出版社 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108085544A (en) * 2017-12-15 2018-05-29 吴振江 Fastener high-strength aluminum alloy material and preparation method thereof
CN108262576A (en) * 2018-01-26 2018-07-10 吴振江 Aluminium alloy welding wire and its manufacturing method
CN110042285A (en) * 2019-05-23 2019-07-23 江苏亨通电力特种导线有限公司 Rivet high-strength aluminium-magnesium alloy wire and preparation method thereof
CN110042285B (en) * 2019-05-23 2020-03-24 江苏亨通电力特种导线有限公司 High-strength aluminum-magnesium alloy wire for rivet and preparation method thereof
CN112126831A (en) * 2020-09-10 2020-12-25 江苏科源铝业有限公司 Bright anticorrosive aluminum profile and preparation method thereof

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