CN105838929B - A kind of rare-earth aluminum alloy lead wire and its manufacture method - Google Patents
A kind of rare-earth aluminum alloy lead wire and its manufacture method Download PDFInfo
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C21/00—Alloys based on aluminium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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Abstract
A kind of rare-earth aluminum alloy lead wire and its manufacture method, its composition and mass percent are：Zr 0.1~0.3%, Mg 0.1~0.3%, Si 0.05~0.15%, Ti 0.005~0.015%, C 0.001~0.003%, Re 0.05~0.15%, remaining is Al and inevitable impurity.Its manufacture method includes getting the raw materials ready, aluminum alloy melt is prepared in melting, online refinement processing, online degasification and filtration treatment, continuous casting and rolling, drawing and Ageing Treatment.The features such as rare-earth aluminum alloy lead wire of the present invention has intensity height, good plasticity, high conductance and fine heat-resisting performance, the construction needs of China's urban distribution network increase-volume extending capacity reformation and long range Great span large capacity transmission engineering can be met, with wide market application foreground.
Description
Technical field
The invention belongs to aluminium alloy conductor manufacture field, a kind of rare-earth aluminum alloy lead wire and its manufacturer are specifically related to
Method.
Background technology
With the fast development and the continuous improvement of living standards of the people of national economy, the demand sharp increase to electric power,
Transmission line of electricity increasingly develops to Large Copacity direction, and this requires the transmission line capability for increasing wire.The transmission pressure master of current China
Want or traditional steel-cored aluminium strand, although this steel-cored aluminium strand intensity is high, electric energy loss is big, poor heat resistance, and transmission of electricity is held
Amount is very restricted.
Heat-resistant aluminum alloy wire refers to there is resistance plastic deformation and energy of rupture under the long duration of action of temperature and load
The aluminium alloy conductor of power.The heat resistance of heat-resistant aluminum alloy wire generally is more than 90% to characterize using strength retention, i.e., through adding
The tensile strength then returned to after heat at room temperature is able to maintain that more than the 90% of initial value.The overhead stranded conductor that current China uses
Be mainly aluminum-zirconium alloy wire with heat-resistant aluminum alloy wire, its tensile strength about in 159~245MPa, elongation 1.5~
2%, conductance is in 55~60% IACS, and tensile strength, elongation and conductance are overall still relatively low.As China is big over long distances
Across and large capacity transmission circuit and urban distribution network increase-volume capacity-expansion project construction, it is new high-strength in the urgent need to developing
Degree, the heat-resistant aluminum alloy wire of high conductivity.
The literature retrieval of prior art is found, what the inscription of analogy state was published in April, 2009《Reform and exploitation》Upper hair
The paper of table " the experiment application of high-strength heat-resistant aluminium alloy pipe type generatrix ", have developed a kind of high-strength heat-resisting aluminum-alloy cast
Bus, its chemical composition and mass percent are：0.45~0.65% Mg, 0.2~0.6% Si, 0.1~0.2% Cu,
0.08~0.2% Zr, 0.07~0.18% Re, surplus are Al, and room temperature tensile intensity is 246MPa, and elongation is 8%, conductive
Rate is 55%IACS, and the tensile strength after 250 DEG C of insulations annealing in 1 hour is 220MPa, and intensity survival rate is 89.4%.Patent
CN101768688A discloses a kind of aluminum alloy tubular conductor and its production technology, the composition and quality hundred of aluminum alloy tubular conductor
Point ratio is：0.5~0.7% Mg, 0.4~0.6% Si, 0.1~0.2% Cu, 0.15~0.25% Zr, 0.1~0.2%
RE, 0.25~0.4% Fe, surplus be Al, room temperature tensile intensity >=246MPa of aluminum alloy tubular conductor, elongation >=10%,
Conductance is 55%IACS, and the tensile strength after 250 DEG C of insulations annealing in 1 hour is 220MPa, and intensity survival rate is 89.4%.Patent
CN102554192B discloses a kind of manufacture method of high-conductive heat-resistant electrode beam part, the composition and quality hundred of alloy material
Point ratio is：0.5~1.0% Mg, 0.4~0.8% Si, 0.6~0.8% Zr, 0.05~0.1% Ce, 0.03~0.06%
B, surplus are Al, and conductance reaches 45%IACS, and temperature is used for a long time up to 250 DEG C.Patent CN101174489A discloses one kind
High-strength heat-resistant aluminium alloy pipe type generatrix, its composition is：0.5~0.75% Mg, 0.3~0.5% Si, 0.2~0.3% Zr,
And a small amount of Fe, Cu, Mn, Zn, Ti etc., conductance is 53~58%IACS, its tensile strength during 200 DEG C of continuous temperature in use
≥210MPa.Patent CN102011035A discloses a kind of heat-resistant all aluminum alloy conductor and its manufacture method, and its composition is：0.4
~0.8% Mg, 0.05~0.35% Si, 0.2~0.5% Zr, 0.15~1.0% Fe, 0.001~0.2% B, 0.05~
0.3% rare earth, surplus are Al and inevitable impurity element, have the advantages that current-carrying capacity is big, intensity is higher.Patent
CN1941222A discloses a kind of method for manufacturing heat-resisting high-strength aluminium alloy wire, the composition and mass percent of aluminium alloy wire
For：0.045~0.15% Zr, 0.02~0.12% Cu, 0.2~0.95% Fe, 0.1~0.32% Si, 0.05~0.4%
Rare earth, remaining be Al and impurity.It can be seen that by the analysis to above-mentioned documents and materials, existing heat-resistant aluminum alloy wire mainly exists
Aluminium conjunction is improved on the basis of aluminum-zirconium alloy by adding one or more of mischmetals in the LREEs such as La, Ce, Y
Intensity, plasticity and the conductance of golden wire, but combination property of the heat-resistant aluminum alloy wire in intensity, plasticity and conductance is still
It is relatively low, still it is difficult to meet China's urban distribution network increase-volume extending capacity reformation, particularly long range Great span and large capacity transmission engineering
Construction need.
The content of the invention
It is an object of the invention to there is problem and shortage for above-mentioned there is provided a kind of intensity is high, plasticity is good, conductance
The high, rare-earth aluminum alloy lead wire of fine heat-resisting performance and its manufacture method.
The technical proposal of the invention is realized in this way：
Rare-earth aluminum alloy lead wire of the present invention, is characterized in being made up of the composition of following mass percent：Zr 0.1
~0.3%, Mg 0.1~0.3%, Si 0.05~0.15%, Ti 0.005~0.015%, C 0.001~0.003%, Re 0.05~
0.15%, remaining is Al and inevitable impurity, wherein the composition and mass percent of the Re are：Tb 15~25%, Dy 5
~10%, Ho 10~15%, Tm 10~15%, Yb 5~10%, Lu 35~45%.
Wherein, optimal composition and mass percent are：Zr 0.2%, Mg 0.2%, Si 0.1%, Ti 0.01%, C
0.002%, Re 0.1%, remaining is Al and inevitable impurity, wherein the composition and mass percent of the Re are：Tb
19%, Dy 8%, Ho 12%, Tm 13%, Yb 7%, Lu 41%.
A kind of manufacture method of rare-earth aluminum alloy lead wire, is characterized in comprising the following steps：
The first step：Aluminium ingot, 99.9% magnesium from Al-10Zr alloys, Al-5Ti-1C rod of metal alloy and purity for 99.7%
Ingot, 99.9% instant silicon and 99.9% mixed heavy rare earth Re are used as raw material；
Second step：Aluminium ingot is heated in 780~800 DEG C in aluminium melting furnace and melted, addition accounts for raw material gross weight 1~3%
Al-10Zr alloys, 0.1~0.3% magnesium ingot, 0.05~0.15% instant silicon and 0.05~0.15% mixed heavy rare earth Re, are stirred
Mix to be fused into aluminum alloy melt and carry out refining degasification removal of impurities and handle；
3rd step, chute is imported by aluminum alloy melt, and diameter 9.5 is added with the speed of 60~180 mm/mins in chute
The Al-5Ti-1C rod of metal alloy of millimeter carries out online crystal grain refinement processing to aluminum alloy melt；
4th step：Aluminum alloy melt is flowed successively through the graphite rotator rotary speed that is arranged on chute for 500~600 turns/
The Rose Box that the degasification tank and ceramic filter porosity that minute, argon pressure are 100~200KPa are 90~110ppi is carried out
Online degassing and filtration processing；
5th step：It is 8~12 ms/min, under conditions of finish to gauge speed is 7~9 meter per seconds to rotate linear velocity in crystallizing wheel,
By aluminum alloy melt continuous casting and rolling into a diameter of 9.5 millimeters of Aluminum alloy round bar；
6th step：It is under conditions of 6~7%, drawing speed is 7~9 meter per seconds, by aluminum alloy round in passage drawing deformation amount
Bar is drawn into a diameter of 2~4 millimeters of aluminium alloy wire；
7th step：By aluminium alloy wire in 130~150 DEG C of Ageing Treatments 12~16 hours, rare earth aluminium is obtained after furnace cooling
Alloy lead wire.
The composition of rare-earth aluminum alloy lead wire of the present invention and the selection of mass percent and restriction reason are as follows：
Zr：Zr can separate out the Al of small and dispersed in rare-earth aluminum alloy lead wire ageing process3Zr phases, Al3Zr phases are in height
Do not decomposed under temperature, the effect with pinning dislocation and crystal boundary, transgranular sliding and the sliding of crystal boundary can be hindered, reduce the expansion of crackle
Speed is opened up, the heat resistance of rare-earth aluminum alloy lead wire is improved.But Zr addition can also cause the crystal lattice of aluminum substrate to distort, increase
Plus electron scattering is so as to reduce conductance.Ensureing that the enough heat resistances of rare-earth aluminum alloy lead wire acquisition and the dual of electric conductivity will
Ask down, therefore the Zr of selection addition 0.1~0.3%, optimum content is 0.2%.
Mg、Si：Mg and Si can form Mg in rare-earth aluminum alloy lead wire ageing process2Si hardening constituents, strengthen rare earth
The intensity of aluminium alloy conductor, Mg, Si content is higher, the intensity of rare-earth aluminum alloy lead wire is higher, but rare-earth aluminum alloy lead wire is led
Electric rate can be reduced gradually.In order to ensure that rare-earth aluminum alloy lead wire obtains enough intensity and conductance, therefore the selection of Mg contents exists
0.1~0.3%, optimum content is 0.2%；Si contents are selected 0.05~0.15%, and optimum content is 0.1%.
Ti、C：Ti and C are that rare-earth aluminum alloy lead wire is added in the form of Al-5Ti-1C rod of metal alloy, Al-5Ti-1C alloys
Bar is the optimal grain refiner of current aluminium alloy, and substantial amounts of TiAl is contained in its inside3With TiC particle phases.Addition 0.1~0.3%
Al-5Ti-1C rod of metal alloy, the C containing 0.005~0.015% Ti and 0.001~0.003% in aluminium alloy conductor can be notable
The crystal grain of rare earth aluminium alloy is refined, improves the structural homogenity of rare earth aluminium alloy, rare earth aluminium alloy continuous casting billet and rare earth aluminium is improved
The plasticity of alloy round bar, prevents rare earth aluminium alloy continuous casting billet and round bar to be broken in subsequent tandem mill drawing process, and then
Improve the intensity and plasticity of rare-earth aluminum alloy lead wire.The optimum addition of Al-5Ti-1C rod of metal alloy is 0.2%, in aluminium alloy conductor
C containing 0.01% Ti and 0.002%.
Re：Re is the mischmetal containing Tb, Dy, Ho, Tm, Yb and Lu totally 6 kinds of heavy rare earth elements.The thing of mixed heavy rare earth
Physicochemical property is active, adds micro mixed heavy rare earth, can be with the oxygen in aluminum alloy melt, hydrogen, nitrogen, carbon, phosphorus, sulphur, iron, lead etc.
The impurity element dystectic compound of reaction generation is simultaneously precipitated, and is had purification and refining effect to aluminum alloy melt, can be eliminated metal
Influence with nonmetallic inclusion element to rare-earth aluminum alloy lead wire electric conductivity, intensity and plasticity, improves rare-earth aluminum alloy lead wire
Conductance, intensity, plasticity and heat resistance.It is demonstrated experimentally that addition mixed heavy rare earth LREEs more one or more of than addition
Or a kind of or a few heavy rare earth element is to the conductance of raising rare-earth aluminum alloy lead wire, intensity, plasticity and heat resistance
Effect is all more preferable.Therefore, the mixed heavy rare earth Re of selection addition 0.05~0.15%, optimum content is 0.1%.
The present invention compared with prior art, with advantages below：
The present invention passes through addition 0.05 on Zr, Mg, Si main alloying element component base of optimization rare-earth aluminum alloy lead wire
~0.15% mixed heavy rare earth Re, deep purifying and micronization processes are carried out to aluminum alloy melt, eliminate metal and nonmetallic inclusion member
Influence of the element to rare-earth aluminum alloy lead wire electric conductivity, and by furnace refining processing, the online Al-5Ti-1C refinements of chute at
Reason, degasification tank and the processing of tubular filter case online degassing and filtration, make rare-earth aluminum alloy lead wire and meanwhile have intensity height, plasticity it is good,
The features such as conductance height and fine heat-resisting performance, the room temperature tensile intensity of rare-earth aluminum alloy lead wire is 285.7~305.1MPa, is stretched
Long rate is 7.1~9.5%, and conductance is 59.3~61.5%, and the strength retention after 310 DEG C of continuous heatings 400 hours is more than
90%, China's urban distribution network increase-volume extending capacity reformation, the particularly construction of long range Great span and large capacity transmission engineering can be met
Need, with wide market application foreground.
Embodiment
Embodiment 1：
The composition and mass percent of rare-earth aluminum alloy lead wire of the present invention be：Zr 0.1%, Mg 0.1%, Si
0.05%, Ti 0.005%, C 0.001%, Re 0.05%, remaining be Al and inevitable impurity, wherein the composition of the Re and
Mass percent is：Tb 19%, Dy 8%, Ho 12%, Tm 13%, Yb 7%, Lu 41%.The manufacturer of the rare-earth aluminum alloy lead wire
Method is as follows：
The first step：It is 99.7% aluminium ingot, 99.9% magnesium ingot, 99.9% instant silicon, 99.9% mixing weight from purity
Rare earth Re and Al-10Zr alloy and Al-5Ti-1C rod of metal alloy are as raw material, and list of ingredients is as follows：
Second step：Aluminium ingot is heated in 780 DEG C in aluminium melting furnace and melted, add Al-10Zr alloys, magnesium ingot, instant silicon and
Mixed heavy rare earth Re, stirring is fused into aluminum alloy melt, and refining degasification removal of impurities processing is then carried out with carbon trichloride；
3rd step, chute is imported by aluminum alloy melt, and 9.5 millimeters of diameter is added with the speed of 60 mm/mins in chute
Al-5Ti-1C rod of metal alloy online crystal grain refinement processing is carried out to aluminum alloy melt；
4th step：Aluminum alloy melt is flowed successively through the graphite rotator rotary speed that is arranged on chute for 500 revs/min,
The Rose Box that the degasification tank and ceramic filter porosity that argon pressure is 200KPa are 90ppi is carried out at online degassing and filtration
Reason；
5th step：It is 12 ms/min, under the conditions of finish to gauge speed is 9 meter per seconds to rotate linear velocity in crystallizing wheel, by aluminium alloy
Liquid continuous casting and rolling is into a diameter of 9.5 millimeters of Aluminum alloy round bar；
6th step：It is that under the conditions of 7%, drawing speed is 9 meter per seconds, Aluminum alloy round bar is drawn into passage drawing deformation amount
A diameter of 2 millimeters of aluminium alloy wire；
7th step：By aluminium alloy wire in 130 DEG C of Ageing Treatments 16 hours, rare-earth aluminum alloy lead wire is obtained after furnace cooling.
Sampled on rare-earth aluminum alloy lead wire, room temperature tensile is carried out on DNS200 type electronic tensile machines, draw speed is 2
Mm/min, detects the room temperature tensile intensity and elongation of rare-earth aluminum alloy lead wire, as a result as shown in table 1.It is double in QJ44 types direct current
The conductance of rare-earth aluminum alloy lead wire is determined on arm electric bridge, as a result as shown in table 1.Rare-earth aluminum alloy lead wire is continued at 310 DEG C
Heating 400 hours, is subsequently cooled to room temperature, room temperature tensile is carried out on DNS200 type electronic tensile machines, draw speed is 2 mm/
Min, detects the tensile strength of rare-earth aluminum alloy lead wire, is compared with the tensile strength values and initial value, and detection rare earth aluminium is closed
The strength retention of golden wire, as a result as shown in table 1.
Embodiment 2：
The composition and mass percent of rare-earth aluminum alloy lead wire of the present invention be：Zr 0.2%, Mg 0.2%, Si
0.1%, Ti 0.01%, C 0.002%, Re 0.1%, remaining is Al and inevitable impurity, wherein the composition and matter of the Re
Measuring percentage is：Tb 19%, Dy 8%, Ho 12%, Tm 13%, Yb 7%, Lu 41%.The manufacture method of rare-earth aluminum alloy lead wire is such as
Under：
The first step：It is 99.7% aluminium ingot, 99.9% magnesium ingot, 99.9% instant silicon, 99.9% mixing weight from purity
Rare earth Re and Al-10Zr alloy and Al-5Ti-1C rod of metal alloy are as raw material, and list of ingredients is as follows：
Second step：Aluminium ingot is heated in 790 DEG C in aluminium melting furnace and melted, add Al-10Zr alloys, magnesium ingot, instant silicon and
Mixed heavy rare earth Re, stirring is fused into aluminum alloy melt, and refining degasification removal of impurities processing is then carried out with carbon trichloride；
3rd step, chute is imported by aluminum alloy melt, and 9.5 millimeters of diameter is added with the speed of 120 mm/mins in chute
Al-5Ti-1C rod of metal alloy online crystal grain refinement processing is carried out to aluminum alloy melt；
4th step：Aluminum alloy melt is flowed successively through the graphite rotator rotary speed that is arranged on chute for 550 revs/min,
The Rose Box that the degasification tank and ceramic filter porosity that argon pressure is 150KPa are 100ppi is carried out at online degassing and filtration
Reason；
5th step：It is 10 ms/min, under the conditions of finish to gauge speed is 8 meter per seconds to rotate linear velocity in crystallizing wheel, by aluminium alloy
Liquid continuous casting and rolling is into a diameter of 9.5 millimeters of Aluminum alloy round bar；
6th step：It is under the conditions of 6.5%, drawing speed is 8 meter per seconds, by Aluminum alloy round bar drawing in passage drawing deformation amount
Into a diameter of 3 millimeters of aluminium alloy wire；
7th step：By aluminium alloy wire in 140 DEG C of Ageing Treatments 14 hours, rare-earth aluminum alloy lead wire is obtained after furnace cooling.
Room temperature tensile intensity, elongation, the conduction of the present embodiment rare-earth aluminum alloy lead wire are detected using the method for embodiment 1
Rate and strength retention, as a result as shown in table 1.
Embodiment 3：
The composition and mass percent of rare-earth aluminum alloy lead wire of the present invention be：Zr 0.3%, Mg 0.3%, Si
0.15%, Ti 0.015%, C 0.003%, Re 0.15%, remaining be Al and inevitable impurity, wherein the composition of the Re and
Mass percent is：Tb 19%, Dy 8%, Ho 12%, Tm 13%, Yb 7%, Lu 41%.The manufacture method of rare-earth aluminum alloy lead wire
It is as follows：
The first step：It is 99.7% aluminium ingot, 99.9% magnesium ingot, 99.9% instant silicon, 99.9% mixing weight from purity
Rare earth Re and Al-10Zr alloy and Al-5Ti-1C rod of metal alloy are as raw material, and list of ingredients is as follows：
Second step：Aluminium ingot is heated in 800 DEG C in aluminium melting furnace and melted, add Al-10Zr alloys, magnesium ingot, instant silicon and
Mixed heavy rare earth Re, stirring is fused into aluminum alloy melt, and refining degasification removal of impurities processing is then carried out with carbon trichloride；
3rd step, chute is imported by aluminum alloy melt, and 9.5 millimeters of diameter is added with the speed of 180 mm/mins in chute
Al-5Ti-1C rod of metal alloy online crystal grain refinement processing is carried out to aluminum alloy melt；
4th step：Aluminum alloy melt is flowed successively through the graphite rotator rotary speed that is arranged on chute for 600 revs/min,
The Rose Box that the degasification tank and ceramic filter porosity that argon pressure is 100KPa are 110ppi is carried out at online degassing and filtration
Reason；
5th step：It is 8 ms/min, under the conditions of finish to gauge speed is 7 meter per seconds to rotate linear velocity in crystallizing wheel, by aluminum alloy melt
Continuous casting and rolling is into a diameter of 9.5 millimeters of Aluminum alloy round bar；
6th step：It is that under the conditions of 6%, drawing speed is 7 meter per seconds, Aluminum alloy round bar is drawn into passage drawing deformation amount
A diameter of 4 millimeters of aluminium alloy wire；
7th step：By aluminium alloy wire in 150 DEG C of Ageing Treatments 12 hours, rare-earth aluminum alloy lead wire is obtained after furnace cooling.
Room temperature tensile intensity, elongation, the conduction of the present embodiment rare-earth aluminum alloy lead wire are detected using the method for embodiment 1
Rate and strength retention, as a result as shown in table 1.
Comparative example：
The composition and mass percent of aluminium alloy conductor be：Zr 0.2%, Mg 0.2%, Si 0.1%, Ti 0.01%, C
0.002%, remaining is Al and inevitable impurity.The manufacture method of aluminium alloy conductor is as follows：
The first step：The aluminium ingot, 99.9% magnesium ingot, 99.9% instant silicon and Al-10Zr alloys for being 99.7% from purity
With Al-5Ti-1C rod of metal alloy as raw material, list of ingredients is as follows：
Second step：Aluminium ingot is heated in 790 DEG C in aluminium melting furnace and melted, Al-10Zr alloys, magnesium ingot and instant silicon is added,
Stirring is fused into aluminum alloy melt, and refining degasification removal of impurities processing is then carried out with carbon trichloride；
3rd step, chute is flowed into by aluminum alloy melt, and 9.5 millimeters of diameter is added with the speed of 120 mm/mins in chute
Al-5Ti-1C rod of metal alloy online crystal grain refinement processing is carried out to aluminum alloy melt；
4th step：Aluminum alloy melt is flowed successively through be arranged on chute, graphite rotator rotary speed be 550 revs/min, argon
The Rose Box that the degasification tank and ceramic filter porosity that atmospheric pressure is 150KPa are 100ppi carries out online degassing and filtration processing；
5th step：It is 10 ms/min, under the conditions of finish to gauge speed is 8 meter per seconds to rotate linear velocity in crystallizing wheel, by aluminium alloy
Liquid continuous casting and rolling is into a diameter of 9.5 millimeters of Aluminum alloy round bar；
6th step：It is under the conditions of 6.5%, drawing speed is 8 meter per seconds, by Aluminum alloy round bar drawing in passage drawing deformation amount
Into a diameter of 3 millimeters of aluminium alloy wire；
7th step：By aluminium alloy wire in 140 DEG C of Ageing Treatments 14 hours, aluminium alloy conductor is obtained after furnace cooling.
Using the method for embodiment 1 detect the room temperature tensile intensity of this comparative example aluminium alloy conductor, elongation, conductance and
Strength retention, as a result as shown in table 1.
Room temperature tensile intensity, elongation, conductance and the strength retention of the embodiment of table 1 and comparative example aluminium alloy conductor
It can be seen from table 1, the room temperature tensile intensity of rare-earth aluminum alloy lead wire of the present invention is 285.7~305.1MPa, elongation
Rate is 7.1~9.5%, and conductance is 59.3~61.5%, and the strength retention after 310 DEG C of continuous heatings 400 hours is more than
90%.From table 1 it can also be seen that the room temperature tensile intensity of rare-earth aluminum alloy lead wire of the present invention, elongation are, conductance and intensity are protected
Holdup be both greater than the room temperature tensile intensity for the aluminium alloy conductor for being not added with mixed heavy rare earth Re, elongation be, conductance and intensity
Conservation rate, illustrate the present invention by add mixed heavy rare earth Re can further improve rare-earth aluminum alloy lead wire room temperature tensile it is strong
Degree, elongation are, conductance and strength retention, enable aluminum alloy to wire while having that intensity height, plasticity be good, conductance is high and resistance to
The advantage of good in thermal property.
The present invention is described by embodiment, but not limited the invention, with reference to description of the invention, institute
Other changes of disclosed embodiment, are such as readily apparent that, such change should belong to for the professional person of this area
Within the scope of the claims in the present invention are limited.
Claims (3)
1. a kind of rare-earth aluminum alloy lead wire, it is characterised in that be made up of the composition of following mass percent：Zr 0.1~0.3%, Mg
0.1~0.3%, Si 0.05~0.15%, Ti 0.005~0.015%, C 0.001~0.003%, Re 0.05~0.15%, remaining
For Al and inevitable impurity, wherein the composition and mass percent of the Re are：Tb 15~25%, Dy 5~10%, Ho
10~15%, Tm 10~15%, Yb 5~10%, Lu 35~45%.
2. rare-earth aluminum alloy lead wire according to claim 1, it is characterised in that be made up of the composition of following mass percent：
Zr 0.2%, Mg 0.2%, Si 0.1%, Ti 0.01%, C 0.002%, Re 0.1%, remaining is Al and inevitable impurity, its
Described in Re composition and mass percent be：Tb 19%, Dy 8%, Ho 12%, Tm 13%, Yb 7%, Lu 41%.
3. a kind of manufacture method of rare-earth aluminum alloy lead wire, this method is used to manufacture the rare earth as described in above-mentioned any claim
Aluminium alloy conductor, it is characterised in that comprise the following steps：
The first step：From Al-10Zr alloys, Al-5Ti-1C rod of metal alloy and purity for 99.7% aluminium ingot, 99.9% magnesium ingot,
99.9% instant silicon and 99.9% mixed heavy rare earth Re are used as raw material；
Second step：Aluminium ingot is heated in 780~800 DEG C in aluminium melting furnace and melted, the Al- for accounting for raw material gross weight 1~3% is added
10Zr alloys, 0.1~0.3% magnesium ingot, 0.05~0.15% instant silicon and 0.05~0.15% mixed heavy rare earth Re, stirring
It is fused into aluminum alloy melt and carries out refining degasification removal of impurities processing；
3rd step, chute is imported by aluminum alloy melt, and 9.5 millimeters of diameter is added with the speed of 60~180 mm/mins in chute
Al-5Ti-1C rod of metal alloy online crystal grain refinement processing is carried out to aluminum alloy melt；
4th step：Aluminum alloy melt is flowed successively through the graphite rotator rotary speed that is arranged on chute for 500~600 revs/min,
The Rose Box that the degasification tank and ceramic filter porosity that argon pressure is 100~200kPa are 90~110ppi is removed online
Gas filtration treatment；
5th step：It is 8~12 ms/min, under conditions of finish to gauge speed is 7~9 meter per seconds to rotate linear velocity in crystallizing wheel, by aluminium
Aluminium alloy continuous casting and rolling is into a diameter of 9.5 millimeters of Aluminum alloy round bar；
6th step：It is that under conditions of 6~7%, drawing speed is 7~9 meter per seconds, Aluminum alloy round bar is drawn in passage drawing deformation amount
Pull into a diameter of 2~4 millimeters of aluminium alloy wire；
7th step：By aluminium alloy wire in 130~150 DEG C of Ageing Treatments 12~16 hours, rare earth aluminium alloy is obtained after furnace cooling
Wire.
Priority Applications (1)
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| CN108486434A (en) * | 2018-04-26 | 2018-09-04 | 广东省材料与加工研究所 | A kind of constant-temperature continuous casting method for tandem rolling of aluminium alloy conductor |
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| CN106887266B (en) * | 2017-02-27 | 2018-06-26 | 广东新亚光电缆实业有限公司 | A kind of manufacturing method of high strength heat resistant alloy conducting wire |
| CN111618276A (en) * | 2020-07-18 | 2020-09-04 | 常州嘉阳轻合金有限公司 | Low-pressure casting process of iron eight-axis aluminum alloy gearbox |
| CN115896653B (en) * | 2022-12-21 | 2024-04-02 | 广东领胜新材料科技有限公司 | Continuous casting and rolling device and method for high-strength aluminum alloy round rod |
| CN115821124B (en) * | 2022-12-21 | 2024-02-27 | 广东省科学院工业分析检测中心 | High heat conduction aluminum alloy for radiator and preparation method thereof |
| CN115976376B (en) * | 2022-12-21 | 2024-09-13 | 佛山市坤旺有色金属有限公司 | Aluminum profile for relieved tooth radiator and extrusion method thereof |
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| JPS5839225B2 (en) * | 1979-11-28 | 1983-08-29 | 古河電気工業株式会社 | Manufacturing method of high strength aluminum alloy conductor |
| JPH0967635A (en) * | 1995-08-30 | 1997-03-11 | Furukawa Electric Co Ltd:The | Aluminum alloy casting excellent in strength and toughness, by high pressure casting, and its production |
| JPH11350093A (en) * | 1998-06-04 | 1999-12-21 | Mitsubishi Cable Ind Ltd | Manufacture of heat resistant aluminum alloy conducting wire |
| CN101805853B (en) * | 2009-09-21 | 2011-08-10 | 贵州华科铝材料工程技术研究有限公司 | Cr-RE high-strength heat resistant aluminum alloy material modified with C and preparation method thereof |
| CN103667804B (en) * | 2013-12-10 | 2015-07-22 | 河南融博新型材料有限公司 | Novel aluminum alloy wire and preparation method thereof |
| CN104538116B (en) * | 2014-12-16 | 2016-09-28 | 广东省材料与加工研究所 | A kind of high intensity, the production method of high-conductivity aluminum alloy wire |
| CN105420556B (en) * | 2015-11-19 | 2017-08-18 | 国家电网公司 | Extra-high voltage aluminium alloy conductor |
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