CN107043878A - Aluminum alloy materials and its production technology, the electric conductor of high-strength high-conductivity - Google Patents
Aluminum alloy materials and its production technology, the electric conductor of high-strength high-conductivity Download PDFInfo
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- CN107043878A CN107043878A CN201710325747.8A CN201710325747A CN107043878A CN 107043878 A CN107043878 A CN 107043878A CN 201710325747 A CN201710325747 A CN 201710325747A CN 107043878 A CN107043878 A CN 107043878A
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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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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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
- C22F1/002—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
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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
- C22F1/047—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 magnesium as the next major constituent
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Abstract
The present invention discloses a kind of production technology of the aluminum alloy materials of high-strength high-conductivity, including：First, raw material are prepared according to predetermined ratio standby；2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；3rd, solid-state circle ingot casting is extruded, mould temperature is 440 450 DEG C or 470 480 DEG C, rod temperature is 470 480 DEG C or 490 500 DEG C, forms alloy profile；4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 195 205 DEG C, and aging time is 9 11h, obtains aluminum alloy materials finished product.Accordingly, the present invention also provides the aluminum alloy materials and electric conductor of a kind of high-strength high-conductivity.Using the present invention, conduct electricity very well, good mechanical property, and when it is applied to small bore sub-thread aluminum conductor, solve the problem of connection is difficult.
Description
Technical field
The present invention relates to aluminum alloy materials technical field, more particularly to a kind of aluminum alloy materials of high-strength high-conductivity
And its production technology, and the electric conductor containing above-mentioned aluminum alloy materials.
Background technology
Last century the fifties end, country proposes the policy " with aluminium for copper ", and each side has made many experiments and exploration to this,
Aluminium core rubber-insulated wire, aluminium core oil-impregnated paper insulation cable etc. are come out one after another.Cable in power industry is for conveying and distributing
The resource of electric energy, its basic structure is generally made up of core, insulating barrier, screen layer and the part of protective layer four, and wherein core is electricity
Current-carrying part in cable, is the chief component of cable for conveying electric energy, therefore the aluminum alloy materials for making core are existed
The various aspects such as electric conductivity, mechanical performance, processability and service life have higher requirement.
Moreover, aluminum steel connection does not connect so easy like copper cash, through practice, 25mm2And the connection of above multiply aluminum conductor
Effect is very good, but 10mm2The connection effect of following small bore sub-thread aluminum conductor is poor.However, small section lead is in house work
It is seen everywhere in journey, is related to huge numbers of families.
Therefore, how to ensure that aluminium alloy has good electric conductivity and mechanical performance, and solve small bore sub-thread aluminium to lead
The connectivity problem of line, as urgent problem to be solved.
In the prior art, in order to solve electric conductivity and mechanical performance, the A of Publication No. CN 105154726 contrast is literary
Part 1 discloses a kind of aluminum alloy materials, it is characterised in that according to mass percent meter, the aluminum alloy materials are included with the following group
Point：0.08~0.35% Cu, 0.3~1.5% Mn, 0.08~0.4% Fe, 0.026~0.11% Si,
0.001~0.02% Ti, 0.003~0.018% B, 0.05~0.25% RE, surplus be Al and impurity, and
Impurity≤0.1%；Wherein, the mass ratio of the Fe and Si are 3.0~3.8：1.
Documents 1 be mainly by limit copper, manganese, iron, silicon, titanium, boron, rare earth concrete content realize, especially
By controlling the content ratio of iron and silicon to realize, but it is while electric conductivity is improved, it is impossible to ensure that aluminum alloy materials have
There is preferably mechanical performance, tensile strength is only 125~160MPa.Moreover, it can not also solve small bore sub-thread aluminum conductor
Connectivity problem.
The content of the invention
The technical problem to be solved in the present invention is, there is provided a kind of aluminum alloy materials, to conduct electricity very well, good mechanical property,
And when it is applied to small bore sub-thread aluminum conductor, solve the problem of connection is difficult.
The technical problem to be solved in the present invention is also resided in there is provided a kind of preparation method of aluminum alloy materials, and technique is simple, holds
Easily implement, and obtained product conducts electricity very well, good mechanical property, and when its products application is in small bore sub-thread aluminum conductor,
Solve the problem of connection is difficult.
The technical problem to be solved in the present invention is also resided in there is provided a kind of electric conductor, is conducted electricity very well, good mechanical property, and
When it is used as small bore sub-thread aluminum conductor, the problem of connection is difficult is solved.
To reach above-mentioned technique effect, the invention provides a kind of production of the aluminum alloy materials of high-strength high-conductivity
Technique, comprises the following steps：
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.43%-0.46%Si ,≤0.20%Fe ,≤0.01%Cu ,≤0.01%Mn, 0.53-0.57%Mg ,≤0.01%Cr,
0.005%-0.015%Ti, 0.03%-0.05%B, remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 440-450 DEG C or 470-480 DEG C, rod temperature is 470-480 DEG C or 490-
500 DEG C, form alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 195-205 DEG C, and aging time is 9-11h, is obtained
To aluminum alloy materials finished product, conductance >=57.6% of the aluminum alloy materials finished product, tensile strength >=250MPa, yield strength
>=230MPa, elongation percentage >=13%.
As the improvement of such scheme, aging temp is 198-202 DEG C, and aging time is 9.5-10.5h.
As the improvement of such scheme, aging temp is 200 DEG C, and aging time is 10h.
As the improvement of such scheme, mould temperature is 445-450 DEG C or 475-480 DEG C, and rod temperature is 470-475 DEG C or 495-
500℃。
As the improvement of such scheme, conductance >=60% of the aluminum alloy materials finished product, tensile strength >=260MPa,
Yield strength >=240MPa, elongation percentage >=13.5%.
As the improvement of such scheme, aluminum alloy materials are as follows with the formula for raw stock of percentage by weight:
0.43%-0.44%Si ,≤0.10%Fe ,≤0.001%Cu ,≤0.001%Mn, 0.53-0.54%Mg ,≤0.001%Cr,
0.005%-0.01%Ti, 0.03%-0.04%B, remaining is Al.
Accordingly, the present invention also provides a kind of aluminum alloy materials of high-strength high-conductivity, and it is by above-mentioned production work
Skill is made.
Accordingly, the present invention also provides a kind of electric conductor, is processed by aluminum alloy materials made from above-mentioned production technology
And obtain.
Implement the present invention to have the advantages that：
The present invention limits specific technological parameter by improving composition of raw materials（During including mould temperature, rod temperature, aging temp, timeliness
Between）, using the synergy between formula and technological parameter, conductance >=57.6% is obtained, tensile strength >=250MPa is bent
Intensity >=230MPa is taken, the aluminum alloy materials finished product of elongation percentage >=13% can both improve electric conductivity, tension can be improved again
Intensity and yield strength, it is ensured that preferably elongation percentage.Moreover, the aluminum alloy materials of the present invention are used to make aluminum conductor, can
To overcome the defect that cold pressing connection effect is unstable, the stable connection of aluminum conductor is reliable.Especially 10mm2Following small bore sub-thread
Aluminum conductor can also obtain good connection effect, be that small bore aluminum conductor is widely applied to lay the foundation in residential project.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, it will make further detailed to the present invention below
Description.
In general, the aluminum alloy materials of core are made, it is to electric conductivity, mechanical performance, processability and uses
The various aspects such as life-span have higher requirement.However, being the relation mutually restricted between electric conductivity and mechanical performance, improve
Electric conductivity, then mechanical performance decrease, improve mechanical performance, then electric conductivity may not reach requirement.Moreover, by aluminium
Alloyapplication is when electric conductor, and aluminum steel connection does not connect so easy like copper cash, through practice, 25mm2And above multiply aluminum conductor
Connection effect it is very good, but 10mm2The connection effect of following small bore sub-thread aluminum conductor is poor.However, small section lead exists
It is seen everywhere in residential project, is related to huge numbers of families.
Therefore, the invention provides a kind of production technology of the aluminum alloy materials of high-strength high-conductivity, what it was obtained
Aluminum alloy materials finished product has excellent electric conductivity and mechanical performance simultaneously, and when it is applied to small bore sub-thread aluminum conductor
When, solve the problem of connection is difficult.
Specifically, the production technology comprises the following steps：
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.43%-0.46%Si ,≤0.20%Fe ,≤0.01%Cu ,≤0.01%Mn, 0.53-0.57%Mg ,≤0.01%Cr,
0.005%-0.015%Ti, 0.03%-0.05%B, remaining is Al；
It is preferred that, aluminum alloy materials are as follows with the formula for raw stock of percentage by weight：
0.43%-0.44%Si ,≤0.10%Fe ,≤0.001%Cu ,≤0.001%Mn, 0.53-0.54%Mg ,≤0.001%Cr,
0.005%-0.01%Ti, 0.03%-0.04%B, remaining is Al.
The strength character of the present invention can be by controlling Mg in alloy2Si content and the content of excess silicon ensure.
In Al-Mg-Si system alloy, the tensile strength and yield strength of usual alloy are with Mg in alloy2Si content and containing for excess silicon
Amount increases and improved, but simultaneously, quenching sensitive is also improved, and elongation and Squeezing ground decline.It is right when content of magnesium is superfluous in alloy
The raising of intensity is done harm rather than good, but extruding force significantly rises, and alloy extrusion is degenerated.In order to take into account the intensity of alloy simultaneously
And Squeezing ground, electric conductivity is had no effect on, Mg of the invention content is set as 0.53-0.57%, and Si content is set as 0.43%-
0.44%。
In order on the premise of the intensity of alloy is ensured, not reduce the electric conductivity of aluminium, the present invention exists Mn, Cr control
Less than 0.01%.If Mn, Cr content ＞ 0.01%, can reduce electric conductivity.
Influence of the iron to electric conductivity in alloy is not very big.But with the increase of Fe contents, toughness is substantially reduced.
Harmful effect of the iron to extrusion performance and corrosion resisting property in alloy is considered further that, thus in the case where keeping certain toughness,
Fe too high levels should not be made.Certainly, it is normal impurities in virgin aluminium ingot due to iron, China's current technology state is not also in addition
The possibility for not occurring to increase iron in fusion process is can guarantee that, therefore, from the point of view of reduction production cost, the present invention exists Fe controls
≤0.20%。
Ti has obvious effect to crystal grain thinning in alloy, but its content influences also larger to electric conductivity, therefore this hair
It is bright that Ti contents are controlled into 0.005%-0.015%.
For boron, the addition of appropriate boron can improve the electric conductivity of aluminium alloy to a certain degree.The present invention in order to reach >=
57.6% conductance, adds 0.03%-0.05%B.
The existing aluminium alloy for being used for conduction is generally 6101 aluminium alloys, and its composition is：
Aluminium Al (minimum value)：Surplus
Silicon Si：0.30~0.7
Iron Fe：≤0.50
Copper Cu：≤0.10
Manganese Mn：≤0.03
Magnesium Mg：0.35~0.8
Chromium Cr：≤0.03
Zinc Zn：≤0.10
Boron：≤0.06
Titanium Ti：—
Unspecified other elements：It is every kind of：≤0.03；It is total：≤0.10.
Aluminum alloy materials disclosed in existing 6101 aluminium alloy and documents 1, its Fe, Cu, Mn content is higher, and phase
For 6101 aluminium alloys, the present invention does not contain Zn.The present invention is matched somebody with somebody using the raw material different with documents 1 from 6101 aluminium alloys
Side, improves the purity of aluminium, the species of strict control other elements, and controls the content of other elements, to coordinate following technique to walk
Suddenly, it is finally reached the purpose of the present invention.
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting.
3rd, solid-state circle ingot casting is extruded, mould temperature is 440-450 DEG C or 470-480 DEG C, rod temperature for 470-480 DEG C or
490-500 DEG C, form alloy profile.
It is preferred that, mould temperature is 445-450 DEG C or 475-480 DEG C, and rod temperature is 470-475 DEG C or 495-500 DEG C.
Using the gentle rod temperature of above-mentioned mould, the precipitated phase in alloy is set to be evenly distributed, size maintains essentially in target determination
In the range of, organizational requirements of the extrusion process to extruded stock are met, base is established to obtain preferably mechanical property and electric conductivity
Plinth.
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment.
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 195-205 DEG C, and aging time is 9-
11h, obtains aluminum alloy materials finished product, and conductance >=57.6% of the aluminum alloy materials finished product, tensile strength >=250MPa is bent
Take intensity >=230MPa, elongation percentage >=13%.
It is preferred that, aging temp is 198-202 DEG C, and aging time is 9.5-10.5h.More preferably, aging temp is 200
DEG C, aging time is 10h.
The present invention will also take into account mechanical property while electric conductivity is improved.With the extension of aging time, alloy by
It is progressive enter overaging state, now alloy mechanical properties decrease, and now due to the decline of solute atoms concentration in aluminum substrate,
The electric conductivity increase of alloy.In overaging, corresponding tensile strength, yield strength, elongation percentage, plasticity etc. can be deteriorated.In order to
Best combination property is obtained, aging temp is 195-205 DEG C by the present invention, and aging time is 9-11h.Outside this scope
Aging temp and aging time, can not take into account electric conductivity and mechanical property.It can be carried out below by embodiment and comparative example
Demonstration.
To sum up, preparation method technique of the invention is simple, easily implements, and by improving composition of raw materials, and limits specific
Technological parameter（Including mould temperature, rod temperature, aging temp, aging time）, essence is carried out to mould temperature, rod temperature, aging temp, aging time
Really control, using the synergy between formula and technological parameter, obtains conductance >=57.6%, tensile strength >=250MPa,
Yield strength >=230MPa, the aluminum alloy materials finished product of elongation percentage >=13%, can both improve electric conductivity, can improve anti-again
Tensile strength and yield strength, it is ensured that preferably elongation percentage.Moreover, the aluminum alloy materials of the present invention are used to make electric conductor,
The defect that cold pressing connection effect can be overcome unstable, the stable connection of aluminum conductor is reliable.Especially 10mm2Following small bore list
Stock aluminum conductor can also obtain good connection effect, be that small bore aluminum conductor is widely applied to lay the foundation in residential project.
Existing aluminum conductor, its connect it is mostly be using wax weldering, gas welding welding, be welded welding, cold pressing and various terminal part come
Realize connection.In general, using cold-press process, 25mm2And the connection effect of the heavy in section multiply aluminum conductor of the above is very good.And
10mm2Following small bore sub-thread aluminum conductor, directly cold pressing connection effect is unstable, insecure, easily disengages.When aluminum conductor is using this
After the aluminum alloy materials of invention, because it has good combination property, even 10mm2Following small bore sub-thread aluminium is led
Line, by being directly cold-pressed, it is also possible to obtain good and stable connection effect, solves the skill of small bore sub-thread aluminum conductor connection
Art problem.
Preferred composition of raw materials is selected when of the invention, and during from preferred mould temperature, rod temperature, aging temp, aging time,
Conductance >=60% of the aluminum alloy materials finished product, tensile strength >=260MPa, yield strength >=240MPa, elongation percentage >=
13.5%。
It should be noted that except the process and technological parameter of special instruction, the setting of other technologies details can be with
With reference to prior art.
Accordingly, the present invention also provides a kind of aluminum alloy materials of high-strength high-conductivity, and it is by above-mentioned production work
Skill is made.The aluminum alloy materials conduct electricity very well, good mechanical property, and when it is applied to small bore sub-thread aluminum conductor, solution
The problem of connection of having determined is difficult.
Accordingly, the present invention also provides a kind of electric conductor, is processed by aluminum alloy materials made from above-mentioned production technology
And obtain.The electric conductor conducts electricity very well, good mechanical property, and when it is used as small bore sub-thread aluminum conductor, solves connection
Difficult the problem of.
The present invention is expanded on further with specific embodiment below
Embodiment 1
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.43%Si, 0.20%Fe, 0.01%Cu, 0.01%Mn, 0.53%Mg, 0.01%Cr, 0.005%Ti, 0.03%B, remaining is
Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 440 DEG C, rod temperature is 470 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 195 DEG C, and aging time is 9h, obtains aluminium alloy
Finished material.
Embodiment 2
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.44%Si, 0.15%Fe, 0.008%Cu, 0.005%Mn, 0.54%Mg, 0.004%Cr, 0.006%Ti, 0.04%B, remaining
For Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 450 DEG C, rod temperature is 480 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 197 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Embodiment 3
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.45%Si, 0.10%Fe, 0.001%Cu, 0.001%Mn, 0.55%Mg, 0.001%Cr, 0.006%Ti, 0.04%B, remaining
For Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 445 DEG C, rod temperature is 475 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 198 DEG C, and aging time is 9.5h, obtains aluminium conjunction
Golden finished material.
Embodiment 4
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.45%Si, 0.08%Fe, 0.005%Cu, 0.005%Mn, 0.56%Mg, 0.006%Cr, 0.010%Ti, 0.05%B,
Remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 470 DEG C, rod temperature is 490 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 200 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Embodiment 5
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.46%Si, 0.10%Fe, 0.003%Cu, 0.002%Mn, 0.54%Mg, 0.007%Cr, 0.009%Ti, 0.04%B,
Remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 475 DEG C, rod temperature is 495 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 202 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Embodiment 6
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.44%Si, 0.15%Fe, 0.001%Cu, 0.002%Mn, 0.54%Mg, 0.001%Cr, 0.012%Ti, 0.04%B, remaining
For Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 477 DEG C, rod temperature is 492 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 203 DEG C, and aging time is 10.5h, obtains aluminium
Alloy material finished product.
Embodiment 7
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.45%Si, 0.12%Fe, 0.005%Cu, 0.005%Mn, 0.55%Mg, 0.001%Cr, 0.013%Ti, 0.03%B, remaining
For Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 450 DEG C, rod temperature is 480 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 200 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Embodiment 8
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.46%Si, 0.20%Fe, 0.01%Cu, 0.01%Mn, 0.57%Mg, 0.01%Cr, 0.015%Ti, 0.05%B, remaining is
Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 480 DEG C, rod temperature is 500 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 205 DEG C, and aging time is 11h, obtains aluminium conjunction
Golden finished material.
Embodiment 1-8 is done into technology for detection, it is as a result as follows：
| Project | Conductance | Tensile strength | Yield strength | Elongation percentage | As 10mm2The connection effect of small bore sub-thread aluminum conductor |
| Embodiment 1 | 57.9% | 254MPa | 233MPa | 13.5% | Stable connection, do not fall off |
| Embodiment 2 | 58.3% | 252MPa | 242MPa | 13.2% | Stable connection, do not fall off |
| Embodiment 3 | 58.1% | 265MPa | 245MPa | 13.8% | Stable connection, do not fall off |
| Embodiment 4 | 58.5% | 259MPa | 241MPa | 14.3% | Stable connection, do not fall off |
| Embodiment 5 | 58.8% | 262MPa | 239MPa | 14.5% | Stable connection, do not fall off |
| Embodiment 6 | 57.1% | 268MPa | 235MPa | 15.0% | Stable connection, do not fall off |
| Embodiment 7 | 57.7% | 257MPa | 247MPa | 14.9% | Stable connection, do not fall off |
| Embodiment 8 | 58.2% | 264MPa | 238MPa | 14.2% | Stable connection, do not fall off |
Comparative example 1-8 is compared with embodiment 1-8 below, with confirm the present invention synergy, wherein, comparative example 1 be Si,
Mg content outside formula, comparative example 2 be Mn, Cr content outside formula, comparative example 3 is Ti content in formula
Outside, comparative example 4 be B content outside formula, comparative example 5 be mould temperature outside scope, comparative example 6 be rod temperature scope it
Outside, comparative example 7 be aging temp outside scope, comparative example 8 is aging time outside scope.
Comparative example 1
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.48%Si, 0.15%Fe, 0.001%Cu, 0.002%Mn, 0.60%Mg, 0.001%Cr, 0.012%Ti, 0.04%B, remaining
For Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 470 DEG C, rod temperature is 490 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 200 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Comparative example 2
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.45%Si, 0.08%Fe, 0.005%Cu, 0.05%Mn, 0.56%Mg, 0.02%Cr, 0.010%Ti, 0.05%B, its
Remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 470 DEG C, rod temperature is 490 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 200 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Comparative example 3
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.45%Si, 0.08%Fe, 0.005%Cu, 0.005%Mn, 0.56%Mg, 0.006%Cr, 0.025%Ti, 0.05%B,
Remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 470 DEG C, rod temperature is 490 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 200 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Comparative example 4
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.45%Si, 0.08%Fe, 0.005%Cu, 0.005%Mn, 0.56%Mg, 0.006%Cr, 0.010%Ti, 0.01%B,
Remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 470 DEG C, rod temperature is 490 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 200 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Comparative example 5
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.45%Si, 0.08%Fe, 0.005%Cu, 0.005%Mn, 0.56%Mg, 0.006%Cr, 0.010%Ti, 0.05%B,
Remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 460 DEG C, rod temperature is 480 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 200 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Comparative example 6
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.45%Si, 0.08%Fe, 0.005%Cu, 0.005%Mn, 0.56%Mg, 0.006%Cr, 0.010%Ti, 0.05%B,
Remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 450 DEG C, rod temperature is 485 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 200 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Comparative example 7
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.45%Si, 0.08%Fe, 0.005%Cu, 0.005%Mn, 0.56%Mg, 0.006%Cr, 0.010%Ti, 0.05%B,
Remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 470, rod temperature is 490 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 215 DEG C, and aging time is 10h, obtains aluminium conjunction
Golden finished material.
Comparative example 8
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.45%Si, 0.08%Fe, 0.005%Cu, 0.005%Mn, 0.56%Mg, 0.006%Cr, 0.010%Ti, 0.05%B,
Remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 480 DEG C, rod temperature is 500 DEG C, forms alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 200 DEG C, and aging time is 12h, obtains aluminium conjunction
Golden finished material.
Comparative example 1-8 is done into technology for detection below, it is as a result as follows：
| Project | Conductance | Tensile strength | Yield strength | Elongation percentage | As 10mm2The connection effect of small bore sub-thread aluminum conductor |
| Comparative example 1 | 55.9% | 174MPa | 175MPa | 12.3% | Connection built on the sand, come off |
| Comparative example 2 | 54.3% | 168MPa | 153MPa | 12.8% | Connection built on the sand, come off |
| Comparative example 3 | 55.1% | 154MPa | 167MPa | 11.9% | Connection built on the sand, come off |
| Comparative example 4 | 54.5% | 161MPa | 153MPa | 12.2% | Connection built on the sand, come off |
| Comparative example 5 | 52.8% | 165MPa | 167MPa | 13.4% | Connection built on the sand, come off |
| Comparative example 6 | 53.1% | 173MPa | 155MPa | 14.0% | Connection built on the sand, come off |
| Comparative example 7 | 51.7% | 157MPa | 158MPa | 13.7% | Connection built on the sand, come off |
| Comparative example 8 | 51.2% | 168MPa | 142MPa | 12.5% | Connection built on the sand, come off |
In summary, the present invention is by improving composition of raw materials, and limits specific technological parameter（Including mould temperature, rod temperature, timeliness temperature
Degree, aging time）, using the synergy between formula and technological parameter, obtain conductance >=57.6%, tensile strength >=
250MPa, yield strength >=230MPa, the aluminum alloy materials finished product of elongation percentage >=13% can both improve electric conductivity, again can be with
Improve tensile strength and yield strength, it is ensured that preferably elongation percentage.Moreover, the aluminum alloy materials of the present invention are led for making
Electric body, the defect that cold pressing connection effect can be overcome unstable, the stable connection of aluminum conductor is reliable.Especially 10mm2It is small below
Section sub-thread aluminum conductor can also obtain good connection effect, be that small bore aluminum conductor is widely applied in residential project establish base
Plinth.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of production technology of the aluminum alloy materials of high-strength high-conductivity, it is characterised in that comprise the following steps：
First, raw material are prepared according to predetermined ratio it is standby, wherein, it is as follows with the formula for raw stock of percentage by weight:
0.43%-0.46%Si ,≤0.20%Fe ,≤0.01%Cu ,≤0.01%Mn, 0.53-0.57%Mg ,≤0.01%Cr,
0.005%-0.015%Ti, 0.03%-0.05%B, remaining is Al；
2nd, by raw material founding into liquid alloy, then it is cooled into solid-state circle ingot casting；
3rd, solid-state circle ingot casting is extruded, mould temperature is 440-450 DEG C or 470-480 DEG C, rod temperature is 470-480 DEG C or 490-
500 DEG C, form alloy profile；
4th, the alloy profile of extrusion forming is subjected to Quenching Treatment；
5th, the alloy profile after quenching is subjected to Ageing Treatment, aging temp is 195-205 DEG C, and aging time is 9-11h, is obtained
To aluminum alloy materials finished product, conductance >=57.6% of the aluminum alloy materials finished product, tensile strength >=250MPa, yield strength
>=230MPa, elongation percentage >=13%.
2. the production technology of the aluminum alloy materials of high-strength high-conductivity as claimed in claim 1, it is characterised in that timeliness
Temperature is 198-202 DEG C, and aging time is 9.5-10.5h.
3. the production technology of the aluminum alloy materials of high-strength high-conductivity as claimed in claim 2, it is characterised in that timeliness
Temperature is 200 DEG C, and aging time is 10h.
4. the production technology of the aluminum alloy materials of high-strength high-conductivity as claimed in claim 1, it is characterised in that mould temperature
For 445-450 DEG C or 475-480 DEG C, rod temperature is 470-475 DEG C or 495-500 DEG C.
5. the production technology of the aluminum alloy materials of high-strength high-conductivity as claimed in claim 1, it is characterised in that described
Conductance >=60% of aluminum alloy materials finished product, tensile strength >=260MPa, yield strength >=240MPa, elongation percentage >=13.5%.
6. the production technology of the aluminum alloy materials of high-strength high-conductivity as claimed in claim 1, it is characterised in that aluminium is closed
Golden material is as follows with the formula for raw stock of percentage by weight:
0.43%-0.44%Si ,≤0.10%Fe ,≤0.001%Cu ,≤0.001%Mn, 0.53-0.54%Mg ,≤0.001%Cr,
0.005%-0.01%Ti, 0.03%-0.04%B, remaining is Al.
7. a kind of aluminum alloy materials of high-strength high-conductivity, it is characterised in that it is as described in claim any one of 1-6
Production technology is made.
8. a kind of electric conductor, it is characterised in that it passes through aluminium alloy made from the production technology described in claim any one of 1-6
Material is processed and obtained.
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| CN109355536A (en) * | 2018-12-05 | 2019-02-19 | 辽宁忠旺集团有限公司 | A kind of aluminium bar bus and its production technology |
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| CN116657004A (en) * | 2023-07-25 | 2023-08-29 | 宁德时代新能源科技股份有限公司 | Aluminum alloy for battery busbar, preparation method, application, battery device and equipment |
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Inventor after: Pan Weijin Inventor after: Xu Jiang Inventor after: Li Jiaxing Inventor before: Pan Weijin |