CN104975211B - Strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type - Google Patents
Strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type Download PDFInfo
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- CN104975211B CN104975211B CN201510460006.1A CN201510460006A CN104975211B CN 104975211 B CN104975211 B CN 104975211B CN 201510460006 A CN201510460006 A CN 201510460006A CN 104975211 B CN104975211 B CN 104975211B
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 97
- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 239000000956 alloy Substances 0.000 claims abstract description 29
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 229910052796 boron Inorganic materials 0.000 claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 41
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 41
- 239000004411 aluminium Substances 0.000 claims description 38
- 239000010949 copper Substances 0.000 claims description 25
- 238000005491 wire drawing Methods 0.000 claims description 22
- 238000002360 preparation method Methods 0.000 claims description 14
- 229910018182 Al—Cu Inorganic materials 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 7
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- 229910021364 Al-Si alloy Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 241001062472 Stokellia anisodon Species 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 229910000521 B alloy Inorganic materials 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000005275 alloying Methods 0.000 abstract description 21
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000004888 barrier function Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000011777 magnesium Substances 0.000 description 29
- 239000004020 conductor Substances 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 239000000463 material Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 229910018125 Al-Si Inorganic materials 0.000 description 8
- 229910018520 Al—Si Inorganic materials 0.000 description 8
- 238000005098 hot rolling Methods 0.000 description 7
- 238000004512 die casting Methods 0.000 description 6
- 238000003801 milling Methods 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 229910018563 CuAl2 Inorganic materials 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
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- 239000000758 substrate Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000006356 dehydrogenation reaction Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
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- 239000010959 steel Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910021365 Al-Mg-Si alloy Inorganic materials 0.000 description 1
- 229910018191 Al—Fe—Si Inorganic materials 0.000 description 1
- 229910018464 Al—Mg—Si Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910017060 Fe Cr Inorganic materials 0.000 description 1
- 229910019752 Mg2Si Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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Abstract
The invention provides strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type, belongs to power industry transmission line of electricity aerial condutor technical field.Strength aluminum alloy conductive monofilament in high conductivity heat treatment type provided by the invention, solves the technical barrier that existing conductance is low, transmission of electricity line loss is big.The microstructure of alloy is adjusted by controlling content and the Technology for Heating Processing of B, Mg, Si, Cu micro alloying element, so as to develop with conductance >=59.2%IACS (20 DEG C), tensile strength >=240MPa, the middle strength aluminum alloy monofilament of elongation percentage >=4.0%.
Description
【Technical field】
The present invention relates to a kind of power industry aerial condutor used for transmission line, in particular to a kind of high conductivity heat treatment
Strength aluminum alloy conductive monofilament in type.
【Background technology】
Need to consider shaft tower, basis, insulator and gold utensil cost and wire erection and its when laying power network line
Site transportation expense.Strong all aluminum alloy conductor, which replaces to realize during aluminium steel conductor, in utilization reduces year power consumption, so as to save
5%~8% circuit body cost, and because average span increases, reduce shaft tower dosage so that every kilometer of tower material index is about
15% is reduced, further saves corridor area.Compare with high-strength all aluminum alloy conductor (52.5~53%IACS of conductance), in it is strong
All aluminum alloy conductor has a higher conductance (>=58.5%IACS), lower line loss per unit, while because its wire tension is big, it is resistance to
Tower quality in causing greatly strong all aluminum alloy conductor it is more advantageous in manufacture, design, construction and operation etc., be more suitable for
The extreme terrains such as the big discrepancy in elevation in mountain region, big span and the few circuit of anchor support ratio.
The strong all aluminum alloy conductor of centering in recent years has also carried out numerous studies, but in strong all aluminum alloy conductor product still deposit
In complex manufacturing, cost is high, and the problems such as product conductance relatively low (being mostly in 58.5%IACS levels).Therefore, exist
On the premise of ensureing mechanical property, how to improve it is existing in strong all aluminum alloy conductor conductance, while reducing transmission of electricity line loss
Strong all aluminum alloy conductor technical need the most urgent during reduction production cost turns at present.
Research and application background based on more than, the alloying component and system of strength aluminum alloy wire in a kind of high conductivity need to be provided
Standby technique, to obtain strength aluminum alloy conductor material in high conductivity.
【The content of the invention】
Present invention aims at strong aluminium in the high conductivity heat treatment type for developing aerial condutor in a kind of power industry
Alloy conductive monofilament, to solve the technical barrier that strength aluminum alloy wire conductance in conventional 58.5%IACS is low, transmission of electricity line loss is big.
Technical scheme provided by the invention is closed by controlling content and the Technology for Heating Processing of B, Mg, Si, Cu micro alloying element to adjust
The microstructure of gold, so as to develop with conductance >=59.2%IACS (20 DEG C), tensile strength >=240MPa, elongation percentage >=
4.0% middle strength aluminum alloy monofilament.
The present invention uses following technical scheme to achieve the above object：
The invention provides strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type, by by mass percentage
Following compositions form：
B：0.002~0.03%, Si：0.1~0.40%, Mg：0.2~0.5%, Cu：0.03~0.05%, Fe：0.01
~0.15%, Cr+Mn+V+Ti≤0.01%, surplus are aluminium and inevitable trace impurity.
Strength aluminum alloy conductive monofilament in high conductivity heat treatment type provided by the invention, it is following by by mass percentage
Composition forms：
B：0.02~0.03%, Si：0.2~0.25%, Mg：0.3~0.4%, Cu：0.03~0.05%, Fe：0.11~
0.14%, (Cr+Mn+V+Ti)：0.007~0.009, surplus is aluminium and inevitable trace impurity.
Present invention also offers a kind of preparation method of strength aluminum alloy conductive monofilament in high conductivity heat treatment type, including under
State step：
1) smelt：Added in aluminium fused mass at 730~750 DEG C Al-B, Al-Si alloy by mass percentage,
Mg and made of Al-Cu alloy, Fe：0.01~015%, Cr+Mn+V+Ti≤0.01%；
2) refine：40min is stood after refining agent stirring 15min is added at 720~730 DEG C, is skimmed；
3) cast：Aluminum alloy melt made from step 2) is poured in preheating casting mould at 700~720 DEG C, obtaining size is
22 × 22 × 380mm aluminium alloy ingots；
4) bar processed：It is rolled into Ф 9.5mm's after aluminium alloy ingots made from step 3) is incubated into 1h at 520 DEG C~530 DEG C
Aluminum alloy round bar；
5) timeliness：Aluminum alloy round bar made from step 4) is air-cooled to room temperature at 185~195 DEG C after 6~8h of timeliness；
6) wire drawing：With 10~15m/s speed, 6~10% deflection, the Aluminum alloy round bar obtained to step 5) is carried out
Wire drawing, obtain a diameter of 3.6~3.99mm aluminium alloy monofilament.
Mould in preparation method step 3) provided by the invention is red copper mould.
The preheating temperature of mould in preparation method step 3) provided by the invention is 150~200 DEG C.
Wire-drawing temperature in preparation method step 6) provided by the invention is 30~50 DEG C.
750 DEG C of addition Al-Si alloys, Mg are warming up to after Al-B alloys are added in preparation method step 1) provided by the invention
And made of Al-Cu alloy.
Conductance >=59.2%IACS of strength aluminum alloy conductive monofilament in high conductivity heat treatment type provided by the invention, resist
Tensile strength >=240MPa, elongation percentage >=4.0%.
Each alloys producing and mechanism are as follows：
Si：Silicon is one of most common alloying element of aluminium alloy, and 0.1~0.40% Si can improve the casting of aluminium alloy
Performance and welding mobility, moreover it is possible to higher mechanical property is enabled aluminum alloy to, because it can form some compounds in the alloy,
Alloy is set to turn into heat-treatable strengthened.But Si quantity of dissociating as Si contents raise, in aluminum substrate increase, Si is semiconductor,
It is much higher compared with the resistivity of aluminum substrate, therefore the raising of Si contents reduces effective conductive cross-sectional area of aluminum substrate, drop is low-alloyed
Electrical conductivity.
Mg：Reinforcing of the magnesium to aluminium is that tensile strength, which about raises, looks forward or upwards remote 34MPa it will be evident that often increasing by 1% magnesium.The present invention
The Mg of middle addition 0.2~0.5%：Magnesium and silicon can form Mg in Al-Mg-Si system alloy2Si hardening constituents, reinforcing is played to alloy
Effect；Meanwhile Mg2Si hardening constituents also can produce certain influence to the electric conductivity of alloy.Generally, when Mg contents are relatively low,
The electrical conductivity of alloy is higher and intensity is relatively low, but magnesium is excessive and thermally treated makes Mg2When Si is fully precipitated, alloy also has high electricity
Conductance.
Cu：The copper of addition 0.03~0.05% can improve the tensile strength and its elongation percentage of aluminium alloy in aluminium alloy, easily
Processed in drawing.The Cu that Cu elements generate after adding with Al, Fe2FeAl7、CuAl2Add the crystallization nuclei in melt, material
As-cast structure after crystallization is refined, and the hard phase particles Cu after Ageing Treatment2FeAl7、CuAl2In Dispersed precipitate in group
In knitting, crystal boundary movement, pinning dislocation motion are further hindered, strong dispersion-strengthened action makes the tensile strength of material, extension
Rate is obviously improved.
Fe：It is a kind of major impurity in fine aluminium, Fe content is controlled 0.01~0.15% in the present invention.Because melting
All it is steel or cast iron with casting the instrument used, iron will be brought into aluminium by these instruments, and in remelting waste material, then
Iron and iron filings can be mixed into.Iron is harmful to the mechanical property for casting aluminium, because it generally occurs with a thick crystal, or
Exist with Al-Fe-Si compound forms, they all improve the hardness of aluminium to a certain extent, but reduce the plasticity of aluminium.Iron can
To improve aluminium conductor intensity, its electric conductivity is not significantly reduced.
B：In numerous influence factors, chemical composition is to influence the most basic factor of aluminium conductor electrical conductivity, therefore is reduced
Influence of the impurity element to electrical conductivity is the act for the key for improving aluminium conductor electrical conductivity.If impurity element is deposited with solid solution condition
The influence to electric conductivity is bigger.Borax treatment is a kind of effective ways for reducing impurity content, is added in aluminium alloy
It after 0.01~0.03% B element, can be reacted with Transition Group Impurities element Cr, Mn, V, Ti etc., be allowed to be turned by solid solution state
It is changed into compound state and is deposited on melt bottom, so as to improves the electric conductivity of aluminium alloy.
V、Mn、Cr、Ti：This several element is the impurity element in alloy.The impurity such as Ti, V, Mn, Cr in aluminium conductor
Element is in the presence of state is dissolved, it is easy to absorbs the free electron in conductor material and fills their incomplete electronic shell.This
The reduction of kind conduction number of electrons result in the reduction of aluminium conductor electric conductivity.Research shows that every 1% (Cr+Ti+Mn+V's) is harmful
Every 1%Si is act as to 5 times of aluminium electric conductivity illeffects.Thus the present invention strictly controls the content Cr+Mn+ of this several element
V+Ti≤0.01%.
Present invention also offers a kind of preparation method of strength aluminum alloy conductive monofilament in high conductivity heat treatment type, its step
For：
1) smelt：The technical pure aluminium ingot for choosing purity >=99.7% is added in smelting furnace, and fusion temperature is 730~750 DEG C；
Treat that fine aluminium is completely melt after addition Al-B, Al-Si intermediate alloy, metal Mg and Al-Cu intermediate alloy at 730~750 DEG C；
2) refine：Aluminum alloy melt is sufficiently stirred using mixer, refining agent is added at 720~730 DEG C to aluminium
Aluminium alloy carries out dehydrogenation, deslagging refining, and standing 40min after 15min skims；
3) cast：Aluminum alloy melt made from step 2) is poured in red copper matter casting mould at 700~720 DEG C, mould is pre-
First it is put into batch-type furnace and is heated to 150~200 DEG C, the aluminium alloy ingots for being made that size is 22 × 22 × 380mm of casting；
4) bar processed：It is rolled into Ф 9.5mm's after aluminium alloy ingots made from step 3) is incubated into 1h at 520 DEG C~530 DEG C
Aluminum alloy round bar；
5) timeliness：By Aluminum alloy round bar made from step 4) in batch-type furnace 6~8h of timeliness, aging temp 185~195
DEG C, room temperature is air-cooled to after completion of prescription；
6) wire drawing：With 10~15m/s speed, 6~10% deflection, the aluminium after step 5) timeliness is closed with wire drawing machine
Golden round bar carries out wire drawing, and wire-drawing temperature is controlled at 30~50 DEG C, and a diameter of 3.6~3.99mm aluminium alloy monofilament is made.
After addition Al-B intermediate alloys standing 30min skims in preparation method provided by the invention, add among Al-Si
Alloy, metal Mg (purity ＞ 99.95%) and Al-Cu intermediate alloys.
Recipe step 1 provided by the invention) in, added after the fusing of technical pure aluminium ingot at 730~750 DEG C among Al-B
Alloy is skimmed after standing 30min, is warming up to 750 DEG C and is added Al-Si intermediate alloys, metal Mg and Al-Cu intermediate alloy.
Conductance >=59.2%IACS of strength aluminum alloy conductive monofilament in high conductivity heat treatment type provided by the invention, resist
Tensile strength >=240MPa, elongation percentage >=4.0%.
Its process characteristic is：First smelted, be sequentially placed into after technical pure aluminium ingot is completely melt in Al-B, Al-Si
Between alloy, metal Mg and Al-Cu intermediate alloy, alloying temperature be 730~750 DEG C；Aluminium liquid is stirred using mixer,
Make alloying element full and uniformization；Using refining agent to aluminium liquid carry out dehydrogenation, deslagging refining, stand 30min after skimmed and
Aluminum alloy melt is cast, the aluminium alloy using the red copper material die casting after 150~200 DEG C of preheatings into 22 × 22 × 380mm
Ingot；Aluminium alloy ingots is pressed into Ф 9.5mm round bar by the way of hot rolling, using batch-type furnace 185~195 DEG C to round bar when
6~8h is imitated to regulate and control Mg in alloy2Si and Cu2FeAl7、CuAl2Etc. the precipitation and distribution of phase；Drawn with 10~15m/s speed
Wire drawing on silk machine, wire-drawing temperature are controlled at 30~50 DEG C, by covering with mould (Diamond dies), drawn through multi-pass, finally more
3.6~3.99mm aluminium alloy monofilament is made.
The present invention in Al-Mg-Si alloy due to the addition of micro B and Cu elements, by Ageing Treatment after hot rolling, and control
Wire-drawing temperature processed, the conductance of aluminium alloy, the aerial condutor thus prepared are also ensure that while intensity of aluminum alloy is improved
With conductance >=59.2%IACS of middle strength aluminum alloy monofilament material, tensile strength >=240MPa, the aerial of extension >=4.0% is led
Strength aluminum alloy monofilament material in line high conductivity.
【Embodiment】
All embodiments are all to use existing smelting and rolling equipment, are entered according to preparation process provided by the invention
OK.
Embodiment 1
The component of strength aluminum alloy conductive monofilament and its mass percent are in high conductivity heat treatment type：
Each alloying element is added in the technical pure aluminium ingot that purity is 99.7%, makes their final content as implied above.
Alloying element B, Si, Cu are added in the form of Al-B, Al-Si, Al-Cu intermediate alloy, and alloying element Mg is in the form of simple metal Mg
Add.Aluminium alloy ingots is formed through red copper die casting；Hot rolling, the aluminum alloy round that will be rolled into are carried out to aluminium alloy ingots by milling train
Bar, successively with mould, carries out wire drawing, prepared aluminium alloy monofilament using conventional aluminium monofilament preparation technology on high speed wiredrawing bench
A diameter of 3.60mm, conductance 59.26%IACS, tensile strength 245.2MPa, elongation percentage 4.4%.
Embodiment 2
The component of strength aluminum alloy conductive monofilament and its mass percent are in high conductivity heat treatment type：
Each alloying element is added in the technical pure aluminium ingot that purity is 99.7%, makes their final content as implied above.
Alloying element B, Si, Cu are added in the form of Al-B, Al-Si, Al-Cu intermediate alloy, and alloying element Mg is in the form of simple metal Mg
Add.Aluminium alloy ingots is formed through red copper die casting；Hot rolling, the aluminum alloy round that will be rolled into are carried out to aluminium alloy ingots by milling train
Bar, successively with mould, carries out wire drawing, prepared aluminium alloy monofilament using conventional aluminium monofilament preparation technology on high speed wiredrawing bench
A diameter of 3.60mm, conductance 59.42%IACS, tensile strength 248.4MPa, elongation percentage 4.2%.
Embodiment 3
The component of strength aluminum alloy conductive monofilament and its mass percent are in high conductivity heat treatment type：
Each alloying element is added in the technical pure aluminium ingot that purity is 99.7%, makes their final content as implied above.
Alloying element B, Si, Cu are added in the form of Al-B, Al-Si, Al-Cu intermediate alloy, and alloying element Mg is in the form of simple metal Mg
Add.Aluminium alloy ingots is formed through red copper die casting；Hot rolling, the aluminum alloy round that will be rolled into are carried out to aluminium alloy ingots by milling train
Bar, successively with mould, carries out wire drawing, prepared aluminium alloy monofilament using conventional aluminium monofilament preparation technology on high speed wiredrawing bench
A diameter of 3.84mm, conductance 59.49%IACS, tensile strength 246.3MPa, elongation percentage 4.5%.
Embodiment 4
The component of strength aluminum alloy conductive monofilament and its mass percent are in high conductivity heat treatment type：
Each alloying element is added in the technical pure aluminium ingot that purity is 99.7%, makes their final content as implied above.
Alloying element B, Si, Cu are added in the form of Al-B, Al-Si, Al-Cu intermediate alloy, and alloying element Mg is in the form of simple metal Mg
Add.Aluminium alloy ingots is formed through red copper die casting；Hot rolling, the aluminum alloy round that will be rolled into are carried out to aluminium alloy ingots by milling train
Bar, successively with mould, carries out wire drawing, prepared aluminium alloy monofilament using conventional aluminium monofilament preparation technology on high speed wiredrawing bench
A diameter of 3.84mm, conductance 59.36%IACS, tensile strength 249.6MPa, elongation percentage 4.6%.
Embodiment 5
The component of strength aluminum alloy conductive monofilament and its mass percent are in high conductivity heat treatment type：
Each alloying element is added in the technical pure aluminium ingot that purity is 99.7%, makes their final content as implied above.
Alloying element B, Si, Cu are added in the form of Al-B, Al-Si, Al-Cu intermediate alloy, and alloying element Mg is in the form of simple metal Mg
Add.Aluminium alloy ingots is formed through red copper die casting；Hot rolling, the aluminum alloy round that will be rolled into are carried out to aluminium alloy ingots by milling train
Bar, successively with mould, carries out wire drawing, prepared aluminium alloy monofilament using conventional aluminium monofilament preparation technology on high speed wiredrawing bench
A diameter of 3.84mm, conductance 59.34%IACS, tensile strength 250.0MPa, elongation percentage 4.8%.
Al alloy component table (wt%) prepared by the embodiment of table 1
| Group | B | Mg | Si | Cu | Fe | Cr+Mn+V+Ti |
| Embodiment 1 | 0.02 | 0.393 | 0.216 | 0.04 | 0.116 | 0.007 |
| Embodiment 2 | 0.02 | 0.396 | 0.228 | 0.03 | 0.135 | 0.008 |
| Embodiment 3 | 0.03 | 0.408 | 0.240 | 0.03 | 0.114 | 0.01 |
| Embodiment 4 | 0.02 | 0.359 | 0.221 | 0.05 | 0.12 | 0.009 |
| Embodiment 5 | 0.02 | 0.363 | 0.224 | 0.05 | 0.124 | 0.008 |
The performance test results of aluminium alloy prepared by the embodiment of table 2 and comparative example
| Group | Diameter (mm) | Conductance (%IACS) | Tensile strength (MPa) | Elongation percentage |
| Embodiment 1 | 3.60 | 59.26 | 245.2 | 4.4% |
| Embodiment 2 | 3.60 | 59.42 | 248.4 | 4.2% |
| Embodiment 3 | 3.84 | 59.49 | 246.3 | 4.5% |
| Embodiment 4 | 3.84 | 59.36 | 249.6 | 4.6% |
| Embodiment 5 | 3.84 | 59.34 | 250.0 | 4.8% |
The as shown by data of table 2, the middle strength aluminum alloy monofilament material that technical solution of the present invention provides have bright from combination property
Aobvious advantage, particularly conductance reach more than 59.2%IACS, and tensile strength >=240MPa, elongation percentage >=64.0%.
The explanation of above example is only intended to help the method and its core concept for understanding the present invention.It should be pointed out that pair
For one of ordinary skill in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out some
Improve and modification, these improvement and modification are also fallen into the protection domain of the claims in the present invention.
Claims (6)
1. strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type, the aluminium alloy conductive monofilament is by by mass percentage
The following compositions composition of meter：
B：0.02~0.03%, Si：0.2~0.25%, Mg：0.3~0.4%, Cu：0.03~0.05%, Fe：0.11~
0.14%, Cr+Mn+V+Ti：0.007~0.009, surplus is aluminium and inevitable impurity.
The preparation method of strength aluminum alloy conductive monofilament comprises the steps in described high conductivity heat treatment type：
1) smelt：Added in aluminium fused mass at 730~750 DEG C Al-B, Al-Si alloy by mass percentage, Mg and
Made of Al-Cu alloy, Fe：0.01~015%, Cr+Mn+V+Ti≤0.01%；
2) refine：40min is stood after refining agent stirring 15min is added at 720~730 DEG C, is skimmed；
3) cast：At 700~720 DEG C by aluminum alloy melt made from step 2) pour in preheating casting mould, obtain size for 22 ×
22 × 380mm aluminium alloy ingots；
4) bar processed：Aluminium alloy ingots made from step 3) is incubated to the aluminium conjunction that Ф 9.5mm are rolled into after 1h at 520 DEG C~530 DEG C
Golden round bar；
5) timeliness：Aluminum alloy round bar made from step 4) is air-cooled to room temperature at 185~195 DEG C after 6~8h of timeliness；
6) wire drawing：With 10~15m/s speed, 6~10% deflection, the Aluminum alloy round bar that step 5) obtains is drawn
Silk, obtain a diameter of 3.6~3.99mm aluminium alloy monofilament.
2. strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type as claimed in claim 1, it is characterised in that step
3) mould described in is red copper mould.
3. strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type as claimed in claim 1, it is characterised in that step
3) preheating temperature of mould described in is 150~200 DEG C.
4. strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type as claimed in claim 1, it is characterised in that step
6) wire-drawing temperature described in is 30~50 DEG C.
5. strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type as claimed in claim 1, it is characterised in that described
750 DEG C of addition Al-Si alloys, Mg and made of Al-Cu alloy are warming up to after Al-B alloys are added in step 1).
6. strength aluminum alloy conductive monofilament in high conductivity heat treatment type as claimed in claim 1, it is characterised in that strong in described
Conductance >=59.2%IACS of aluminium alloy monofilament, tensile strength >=240MPa, elongation percentage >=4.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510460006.1A CN104975211B (en) | 2015-07-30 | 2015-07-30 | Strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type |
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| CN105441736B (en) * | 2015-11-17 | 2017-08-01 | 国网河南省电力公司周口供电公司 | A kind of super-pressure specific complex aluminium alloy conductor |
| CN105803276A (en) * | 2016-03-24 | 2016-07-27 | 全球能源互联网研究院 | Electro-conductive filament |
| CN105788697B (en) * | 2016-04-25 | 2018-01-19 | 陈赛飞 | A kind of high-strength high conductivity plastic cable and preparation method thereof |
| CN106623478B (en) * | 2016-12-12 | 2018-08-31 | 远东电缆有限公司 | A kind of manufacturing method of highly conductive high-strength aluminum alloy conducting wire used for intelligent electric network |
| CN111349820B (en) * | 2018-12-20 | 2021-08-27 | 中铝材料应用研究院有限公司 | High-conductivity heat-resistant Al-Zr-Er alloy wire material and preparation method thereof |
| CN110373584A (en) * | 2019-08-28 | 2019-10-25 | 淅川县电业局 | Strength aluminium alloy monofilament and preparation method thereof in a kind of high conductivity |
| CN111041295A (en) * | 2019-11-28 | 2020-04-21 | 国网山东省电力公司经济技术研究院 | Conductive monofilament and preparation method thereof |
| CN111069311B (en) * | 2019-12-18 | 2021-08-10 | 中国科学院金属研究所 | Preparation method of high-strength high-conductivity aluminum alloy wire |
| CN110983116A (en) * | 2019-12-26 | 2020-04-10 | 国网河南省电力公司电力科学研究院 | Preparation process of high-conductivity medium-strength aluminum alloy |
| CN111910110A (en) * | 2020-08-12 | 2020-11-10 | 国网辽宁省电力有限公司丹东供电公司 | Aluminum-magnesium-silicon aluminum alloy wire and preparation method thereof |
| CN114875282A (en) * | 2022-05-24 | 2022-08-09 | 国网智能电网研究院有限公司 | High-strength aluminum alloy monofilament material and preparation method and application thereof |
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| US3697260A (en) * | 1969-12-30 | 1972-10-10 | Aluminum Co Of America | Aluminum conductor wire |
| CN102903415B (en) * | 2012-09-21 | 2015-09-02 | 佛冈鑫源恒业电缆科技有限公司 | A kind of special-shaped oxidation-resistant high-conductivity aluminum alloy carbon fiber lead wire and manufacture method |
| CN103146960B (en) * | 2012-11-06 | 2016-05-25 | 安徽南洋电缆有限公司 | A kind of real core aluminium alloy conductor and preparation method thereof |
| KR101839662B1 (en) * | 2013-03-29 | 2018-03-16 | 후루카와 덴키 고교 가부시키가이샤 | Aluminum alloy conductor, aluminum alloy stranded wire, sheathed wire, wire harness, and method for manufacturing aluminum alloy conductor |
| CN103451498B (en) * | 2013-09-06 | 2015-06-10 | 国家电网公司 | Intermediate strength aluminum alloy wire for overhead conductor |
| CN103820685B (en) * | 2014-02-20 | 2016-05-18 | 无锡华能电缆有限公司 | Strength aluminium alloy line and preparation method thereof in conductance 60%IACS |
| CN103952605B (en) * | 2014-04-30 | 2016-05-25 | 国家电网公司 | A kind of preparation method of middle strength aluminium alloy monofilament |
| CN104532067A (en) * | 2014-12-12 | 2015-04-22 | 华北电力大学 | Non-heat treatment medium-strength aluminum alloy conductor material and preparation method thereof |
| CN104599736A (en) * | 2015-01-31 | 2015-05-06 | 安徽华纳合金材料科技有限公司 | Ferro-aluminum alloy wire with boron and manufacturing method thereof |
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Address after: 102209 Beijing City, Changping District science and Technology Park in the future smart grid research institute hospital Applicant after: GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE Applicant after: State Grid Corporation of China Applicant after: Dandong Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. Applicant after: Shenyang Power Supply Company of State Grid Liaoning Electric Power Co., Ltd. Applicant after: State Grid Hebei Electric Power Company Applicant after: North China Electric Power University Applicant after: SHENYANG CABLE INDUSTRY CO., LTD. Address before: 102211 Beijing city Changping District Xiaotangshan town big East Village Road No. 270 (future technology city) Applicant before: State Grid Smart Grid Institute Applicant before: State Grid Corporation of China Applicant before: Dandong Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. Applicant before: Shenyang Power Supply Company of State Grid Liaoning Electric Power Co., Ltd. Applicant before: State Grid Hebei Electric Power Company Applicant before: North China Electric Power University Applicant before: SHENYANG CABLE INDUSTRY CO., LTD. |
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Inventor after: Ge Weichun Inventor after: Wang Xiaofang Inventor after: Liu Dongyu Inventor after: Feng Yanting Inventor after: Yu Xin Inventor after: Liu Minghui Inventor after: Ye Lijun Inventor after: Wang Peilin Inventor after: Meng Bo Inventor after: Wang Zhao Inventor after: Zhu Zhixiang Inventor after: Chen Baoan Inventor after: Han Yu Inventor after: Chen Xin Inventor after: Yang Changlong Inventor after: Zhang Qiang Inventor after: Pan Xuedong Inventor after: Zhao Rui Inventor before: Zhu Zhixiang Inventor before: Liu Dongyu Inventor before: Feng Yanting Inventor before: Yu Xin Inventor before: Liu Minghui Inventor before: Ye Lijun Inventor before: Wang Peilin Inventor before: Meng Bo Inventor before: Wang Zhao Inventor before: Chen Baoan Inventor before: Han Yu Inventor before: Chen Xin Inventor before: Yang Changlong Inventor before: Zhang Qiang Inventor before: Pan Xuedong Inventor before: Zhao Rui Inventor before: Wang Xiaofang |
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