CN106636814A - High-strength and heat-resistant aluminum alloy expanded-diameter bus - Google Patents
High-strength and heat-resistant aluminum alloy expanded-diameter bus Download PDFInfo
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- CN106636814A CN106636814A CN201710123683.3A CN201710123683A CN106636814A CN 106636814 A CN106636814 A CN 106636814A CN 201710123683 A CN201710123683 A CN 201710123683A CN 106636814 A CN106636814 A CN 106636814A
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- bus bar
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper 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
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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Abstract
The invention discloses a high-strength and heat-resistant aluminum alloy expanded-diameter bus. The high-strength and heat-resistant aluminum alloy expanded-diameter bus is characterized by being prepared from seven elements by a weight ratio: 98.75-99.64% of Al, 0.05-0.15% of Zr, 0.08-0.45% of Fe, 0.08-0.45% of Si, 0.05-0.15% of B, 0.10-0.25% of Re and 0.15-0.35% of Cu. The heat resistance of the high-strength and heat-resistant aluminum alloy expanded-diameter bus is better than that of expanded-diameter buses made from electrical engineering materials and thin aluminum materials; the high-strength and heat-resistant aluminum alloy expanded-diameter bus can normally run at the temperature of 150 DEG C for a long time, and reduces corona loss while increasing current-carrying capacity.
Description
Technical field
The present invention relates to a kind of aluminium alloy diameter enlarging bus bar, more particularly to a kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar.
Background technology
In general, the electric current that diameter enlarging bus bar is carried is bigger, then its running temperature is higher.More expanding mother is applied at present
Line is generally electrician's aluminum and rare earth aluminum, and this kind of diameter enlarging bus bar heatproof heat resistance is poor, and its running temperature is general not
Can be higher than 80 DEG C, and the height of running temperature directly determines the current-carrying capacity of diameter enlarging bus bar.In diameter enlarging bus bar actual moving process
In because by electric current increase after, diameter enlarging bus bar necessarily heats up.Therefore, how existing product materials are constant or materials more
Under few, the resistance to higher temperature of design, transmission capacity are bigger and the higher diameter enlarging bus bar of combination property becomes following diameter enlarging bus bar
Developing direction.
The content of the invention
The invention aims to overcome the shortcomings of above-mentioned background technology, there is provided a kind of high-strength heat-resisting aluminum-alloy is expanding
Bus so as to can normally run at 150 DEG C for a long time, while increase current-carrying capacity, reduces corona loss.
A kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar that the present invention is provided, it includes Al, Zr, Fe, Si, B, Re, Cu seven
Element is planted, each component content weight ratio is Al：98.75%-99.64%；Zr：0.05%-0.15%；Fe：0.08%-
0.45%；Si：0.08%-0.45%；B：0.05%-0.15%；Re：0.10%-0.25%：Cu：0.15%-0.35%；
A kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar that the present invention is provided, its technological process comprises the steps：
S1 it is 730-760 DEG C of melting in temperature) by the fine aluminium shove charge obtained by electrolysis, is Al by each component weight ratio：
98.75%-99.64%；Zr：0.05%-0.15%；Fe：0.08%-0.45%；Si：0.08%-0.45%；B：0.05%-
0.15%；Re：0.10%-0.25%：Cu：0.15%-0.35% sequentially added and closed in the middle of pure iron, copper wire, aluminium boron, aluminium rare earth
Gold, in the refining agent that temperature is 560-800 DEG C of addition 0.15-0.2%, carries out initial refining, and degasification of skimming is subsequently adding aluminium zirconium
Alloy, stirs 5-30min, and second refining is carried out for 560-800 DEG C in temperature, degasification of skimming, sample analysis, each group to be analyzed
After dividing than meeting requirement, filtered, be cast into aluminium alloy rod, rolling take-up, inspection conjunction are carried out to described aluminium alloy rod a
It is stand-by after lattice.
S2 tensile strength) to described aluminium alloy rod a, mechanical performance and electrical property are detected, by tensile strength, machine
The close aluminium alloy rod wire drawing of tool performance, electrical property checks again tensile strength, the mechanical performance of described single line b into single line b
And electrical property, it is larger to described single line b performance inconsistencies to be adjusted, described single line b is stood into 10-25h；Will be through inspection
Qualified aluminium strip c trimmings are tested, is welded using Cold welding technology, be rolled into depth, bundle line pitch, external diameter and meet technology and want
The aluminum pipe d for asking；Single line b and described aluminum pipe d described in after standing is made into diameter enlarging bus bar e using wire twisting machine, it is qualified to check
Packaging and storage afterwards.
Beneficial effect：The present invention provide a kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar, increased during melting Zr, Fe,
Si, B, Re, Cu element, while improve diameter enlarging bus bar heat resistance, reduces corona loss.
Description of the drawings
Fig. 1 is heat-resisting aluminium bar rolling mill practice flow chart provided in an embodiment of the present invention；
Fig. 2 is high-strength heat-resisting aluminum-alloy diameter enlarging bus bar production technological process provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail, but the embodiment should not be construed as it is right
The restriction of the present invention.
Present embodiment provides a kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar, and it includes Al, Zr, Fe, Si, B, Re, Cu
Seven kinds of elements, each component content weight ratio is Al：98.75%-99.64%；Zr：0.05%-0.15%；Fe：0.08%-
0.45%；Si：0.08%-0.45%；B：0.05%-0.15%；Re：0.10%-0.25%：Cu：0.15%-0.35%；
Further, the content weight ratio of the Fe and Si is Fe：Si=1：(0.8-1.8).
Present embodiment provides a kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar, and its technological process comprises the steps：
S1 it is 730-760 DEG C of melting in temperature) by the fine aluminium shove charge obtained by electrolysis, is Al by each component weight ratio：
98.75%-99.64%；Zr：0.05%-0.15%；Fe：0.08%-0.45%；Si：0.08%-0.45%；B：0.05%-
0.15%；Re：0.10%-0.25%：Cu：0.15%-0.35% sequentially added and closed in the middle of pure iron, copper wire, aluminium boron, aluminium rare earth
Gold, in the refining agent that temperature is 560-800 DEG C of addition 0.15-0.2%, carries out initial refining, and degasification of skimming is subsequently adding aluminium zirconium
Alloy, stirs 5-30min, and second refining is carried out for 560-800 DEG C in temperature, degasification of skimming, sample analysis, each group to be analyzed
After dividing than meeting requirement, filtered, be cast into aluminium alloy rod, rolling take-up, inspection conjunction are carried out to described aluminium alloy rod a
It is stand-by after lattice.
S2 tensile strength) to described aluminium alloy rod a, mechanical performance and electrical property are detected, by tensile strength, machine
The close aluminium alloy rod wire drawing of tool performance, electrical property checks again tensile strength, the mechanical performance of described single line b into single line b
And electrical property, it is larger to described single line b performance inconsistencies to be adjusted, described single line b is stood into 10-25h；Will be through inspection
Qualified aluminium strip c trimmings are tested, is welded using Cold welding technology, be rolled into depth, bundle line pitch, external diameter and meet technology and want
The aluminum pipe d for asking；Single line b and described aluminum pipe d described in after standing is made into diameter enlarging bus bar e using wire twisting machine, it is qualified to check
Packaging and storage afterwards.
Specifically, during casting, pony ladle temperature is 560-800 DEG C, and casting speed is：350-440 rev/min.
Specifically, during wire drawing, wire drawing oil temperature is less than 60 DEG C.
Embodiment 1：
The present embodiment provides a kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar, and it includes Al, Zr, Fe, Si, B, Re, Cu seven
Element is planted, each component content weight ratio is Al：99.49%；Zr：0.05%；Fe：0.08%；Si：0.08%；B：0.05%；
Re：0.10%：Cu：0.15%；
It is as follows that the present embodiment provides a kind of concrete technology flow process of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar：
S1 it is 750 DEG C of meltings in temperature) by the fine aluminium 971.9kg shove charges obtained by electrolysis, sequentially adds pure iron 0.8kg, pure
Close in the middle of silicon 0.8kg, copper wire 1.5kg, the aluminium boron intermediate alloy 10kg that Boron contents are 5%, the aluminium rare earth that content of rare earth is 10%
Golden 10kg, in the refining agent that temperature is 750 DEG C of additions 0.2%, carries out initial refining, degasification of skimming, and being subsequently adding amount containing zirconium is
10% aluminium zircaloy 5kg, stirs 12min, and second refining is carried out for 750 DEG C in temperature, and degasification of skimming, sample analysis are measured
Each component content weight ratio is Al：99.49%；Zr：0.05%；Fe：0.08%；Si：0.08%；B：0.05%；Re：
0.10%：Cu：0.15%, filtered, by cast temperature control 700 DEG C (pony ladle positions), casting speed is 350 turns/
Minute, aluminium alloy rod a1 is cast into, rolling take-up is carried out to described aluminium alloy rod a1, it is qualified to check.
S2 tensile strength) to described aluminium alloy rod a1, mechanical performance and electrical property detect that tensile strength is
211-223MPa, specified pull-off force is 121.3-132.1kN, and resistivity is 35.2n Ω m, controls wire-drawing temperature for 50 DEG C, profit
With note rice formula surface trimming aluminium big drawing machine by the close aluminium alloy rod wire drawing of tensile strength, mechanical performance, electrical property into single line b1,
The tensile strength for checking described single line b1 again is 201-212MPa, specified pull-off force is 111.2-122.1kN and resistivity
For 27.2n Ω m, show that described single line b1 does not have the single line of larger fluctuation, described single line b1 is stood into 18h；To pass through
The qualified aluminium strip c1 trimmings of inspection, are welded using Cold welding technology, are rolled into depth 3.5mm, pricked line pitch 18mm, outer
The aluminum pipe d1 of footpath 39mm；Single line b1 and described aluminum pipe d1 described in after standing is utilized into 500/48 dragon type wire twisting machine, is adopted
Button device being moved back with machinery and moving back button, make diameter enlarging bus bar e1, check its heat resistance for 120 DEG C, current-carrying capacity is 1909A when 120 DEG C, electric
Resistance rate is 27.2n Ω m.
Embodiment 2：
The present embodiment provides a kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar, and it includes Al, Zr, Fe, Si, B, Re, Cu seven
Element is planted, each component content weight ratio is Al：99.27%；Zr：0.09%；Fe：0.12%；Si：0.12%；B：0.08%；
Re：0.12%：Cu：0.2%；
It is as follows that the present embodiment provides a kind of concrete technology flow process of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar：
S1 it is 750 DEG C of meltings in temperature) by the fine aluminium 958.6kg shove charges obtained by electrolysis, sequentially adds pure iron 1.2kg, pure
Silicon 1.2kg, copper wire 2kg, the aluminium boron intermediate alloy 16kg that Boron contents are 5%, the aluminium rare earth intermediate alloy that content of rare earth is 10%
12kg, in the refining agent that temperature is 750 DEG C of additions 0.2%, carries out initial refining, degasification of skimming, and being subsequently adding amount containing zirconium is
10% aluminium zircaloy 9kg, stirs 12min, and second refining is carried out for 750 DEG C in temperature, and degasification of skimming, sample analysis are measured
Each component content weight ratio is Al：99.27%；Zr：0.09%；Fe：0.12%；Si：0.12%；B：0.08%；Re：
0.12%：Cu：0.2%, filtered, by cast temperature control 700 DEG C (pony ladle positions), casting speed is 350 revs/min
Clock, is cast into aluminium alloy rod a2, and rolling take-up is carried out to described aluminium alloy rod a2, and it is qualified to check.
S2 tensile strength) to described aluminium alloy rod a2, mechanical performance and electrical property detect that tensile strength is
245.1-246.7MPa, specified pull-off force is 138.7-140.1kN, and resistivity is 31.1n Ω m, controls wire-drawing temperature for 50
DEG C, using note rice formula surface trimming aluminium big drawing machine by the close aluminium alloy rod wire drawing Cheng Dan of tensile strength, mechanical performance, electrical property
Line b2, the tensile strength that described single line b2 is checked again is 231.1-233.8MPa, specified pull-off force is 129.2-138.1kN
It is 31.1n Ω m with resistivity, shows that described single line b2 does not have the single line of larger fluctuation, described single line b2 is stood
18h；By through the qualified aluminium strip c2 trimmings of inspection, welded using Cold welding technology, be rolled into depth 3.5mm, prick line
The aluminum pipe d2 of pitch 18mm, external diameter 39mm；Single line b2 and described aluminum pipe d2 described in after standing is utilized into 500/48 interwined dragon
Formula wire twisting machine, moves back button device and moves back button using machinery, makes diameter enlarging bus bar e2, checks its heat resistance to be 150 DEG C, current-carrying when 150 DEG C
Measure as 2280A, resistivity is 31.1n Ω m.
Embodiment 3：
The present embodiment provides a kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar, and it includes Al, Zr, Fe, Si, B, Re, Cu seven
Element is planted, each component content weight ratio is Al：97.84%；Zr：0.15%；Fe：0.45%；Si：0.81%；B：0.15%；
Re：0.25%：Cu：0.35%；
It is as follows that the present embodiment provides a kind of concrete technology flow process of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar：
S1 it is 750 DEG C of meltings in temperature) by the fine aluminium 913.9kg shove charges obtained by electrolysis, sequentially adds pure iron 4.5kg, pure
Close in the middle of silicon 8.1kg, copper wire 3.5kg, the aluminium boron intermediate alloy 30kg that Boron contents are 5%, the aluminium rare earth that content of rare earth is 10%
Golden 25kg, in the refining agent that temperature is 750 DEG C of additions 0.2%, carries out initial refining, degasification of skimming, and being subsequently adding amount containing zirconium is
10% aluminium zircaloy 15kg, stirs 12min, and second refining is carried out for 750 DEG C in temperature, and degasification of skimming, sample analysis are measured
Each component content weight ratio is Al：97.84%；Zr：0.15%；Fe：0.45%；Si：0.81%；B：0.15%；Re：
0.25%：Cu：0.35%, filtered, by cast temperature control 700 DEG C (pony ladle positions), casting speed is 350 turns/
Minute, aluminium alloy rod a3 is cast into, rolling take-up is carried out to described aluminium alloy rod a3, it is qualified to check.
S2 tensile strength) to described aluminium alloy rod a3, mechanical performance and electrical property detect that tensile strength is
265.1-266.7MPa, specified pull-off force is 158.7-160.1kN, and resistivity is 41.1n Ω m, controls wire-drawing temperature for 50
DEG C, using note rice formula surface trimming aluminium big drawing machine by the close aluminium alloy rod wire drawing Cheng Dan of tensile strength, mechanical performance, electrical property
Line b3, the tensile strength that described single line b3 is checked again is 241.1-243.8MPa, specified pull-off force is 149.2-158.1kN
It is 41.1n Ω m with resistivity, shows that described single line b3 does not have the single line of larger fluctuation, described single line b3 is stood
18h；By through the qualified aluminium strip c3 trimmings of inspection, welded using Cold welding technology, be rolled into depth 3.5mm, prick line
The aluminum pipe d2 of pitch 18mm, external diameter 39mm；Single line b2 and described aluminum pipe d2 described in after standing is utilized into 500/48 interwined dragon
Formula wire twisting machine, moves back button device and moves back button using machinery, makes diameter enlarging bus bar e2, checks its heat resistance to be 155 DEG C, current-carrying when 155 DEG C
Measure as 2311A, resistivity is 41.1n Ω m.
Comparing embodiment 1, embodiment 2 and embodiment 3 understand that adding Zr can improve heat resistance, while conductance can be reduced,
Diameter enlarging bus bar heat resistance in embodiment 1 be 120 DEG C, resistivity be 27.2n Ω m, the diameter enlarging bus bar heat resistance in embodiment 2
For 150 DEG C, resistivity is 31.1n Ω m, and the diameter enlarging bus bar heat resistance in embodiment 3 is 155 DEG C, and resistivity is 41.1n Ω
M, the tensile strength and mechanical performance of three embodiments meet the requirements.Resistivity in embodiment 1 is preferable, but heat resistance only has
120 DEG C, heat resistance is preferable in embodiment three, but resistivity is higher, 150 DEG C of heat resistance main road in implementing 2, and resistivity is somewhat
It is higher than embodiment 1, but in allowed limits, therefore embodiment 2 can well improve the heat resistance of diameter enlarging bus bar, and substantially not
Affect its electric conductivity.
A kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar that the present invention is provided, increased Zr, Fe, Si, B, Re, Cu during melting
Element, has substantially no effect on its resistivity while improve diameter enlarging bus bar heat resistance.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (8)
1. a kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar, it is characterised in that：It includes seven kinds of units of Al, Zr, Fe, Si, B, Re, Cu
Element, each component content weight ratio is Al：98.75%-99.64%；Zr：0.05%-0.15%；Fe：0.08%-0.45%；Si：
0.08%-0.45%；B：0.05%-0.15%；Re：0.10%-0.25%：Cu：0.15%-0.35%.
2. high-strength heat-resisting aluminum-alloy diameter enlarging bus bar as claimed in claim 1, it is characterised in that：The content weight of the Fe and Si
Amount is than being Fe：Si=1：(0.8-1.8).
3. high-strength heat-resisting aluminum-alloy diameter enlarging bus bar as claimed in claim 1, it is characterised in that：It include Al, Zr, Fe, Si,
Seven kinds of elements of B, Re, Cu, each component content weight ratio is Al：99.49%；Zr：0.05%；Fe：0.08%；Si：0.08%；B：
0.05%；Re：0.10%：Cu：0.15%.
4. high-strength heat-resisting aluminum-alloy diameter enlarging bus bar as claimed in claim 1, it is characterised in that：It include Al, Zr, Fe, Si,
Seven kinds of elements of B, Re, Cu, each component content weight ratio is Al：99.27%；Zr：0.09%；Fe：0.12%；Si：0.12%；B：
0.08%；Re：0.12%：Cu：0.2%.
5. high-strength heat-resisting aluminum-alloy diameter enlarging bus bar as claimed in claim 1, it is characterised in that：It include Al, Zr, Fe, Si,
Seven kinds of elements of B, Re, Cu, each component content weight ratio is Al：97.84%；Zr：0.15%；Fe：0.45%；Si：0.81%；B：
0.15%；Re：0.25%：Cu：0.35%.
6. a kind of high-strength heat-resisting aluminum-alloy diameter enlarging bus bar, it is characterised in that：Its technological process comprises the steps：
S1 it is 730-760 DEG C of melting in temperature) by the fine aluminium shove charge obtained by electrolysis, is Al by each component weight ratio：98.75%-
99.64%；Zr：0.05%-0.15%；Fe：0.08%-0.45%；Si：0.08%-0.45%；B：0.05%-0.15%；
Re：0.10%-0.25%：Cu：0.15%-0.35% sequentially adds pure iron, copper wire, aluminium boron, aluminium rare earth intermediate alloy, in temperature
For the refining agent of 560-800 DEG C of addition 0.15-0.2%, initial refining is carried out, degasification of skimming is subsequently adding aluminium zircaloy, stirring
5-30min, second refining is carried out in temperature for 560-800 DEG C, degasification of skimming, sample analysis, and each component to be analyzed is than meeting
After requirement, filtered, be cast into aluminium alloy rod, rolling take-up is carried out to described aluminium alloy rod a, treated after the assay was approved
With.
S2 tensile strength) to described aluminium alloy rod a, mechanical performance and electrical property are detected, by tensile strength, mechanicalness
The close aluminium alloy rod wire drawing of energy, electrical property checks again tensile strength, mechanical performance and the electricity of described single line b into single line b
Performance, it is larger to described single line b performance inconsistencies to be adjusted, described single line b is stood into 10-25h；To close through inspection
The aluminium strip c trimmings of lattice, are welded using Cold welding technology, are rolled into depth, bundle line pitch, external diameter and are met technical requirements
Aluminum pipe d；Single line b and described aluminum pipe d described in after standing is made into diameter enlarging bus bar e using wire twisting machine, is wrapped after the assay was approved
Load storehouse.
7. high-strength heat-resisting aluminum-alloy diameter enlarging bus bar as claimed in claim 3, it is characterised in that：Cast in its technological process
When, pony ladle temperature is 560-800 DEG C, and casting speed is：350-440 rev/min.
8. high-strength heat-resisting aluminum-alloy diameter enlarging bus bar as claimed in claim 3, it is characterised in that：Wire drawing in its technological process
When, wire drawing oil temperature is less than 60 DEG C.
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| CN201710123683.3A CN106636814A (en) | 2017-03-03 | 2017-03-03 | High-strength and heat-resistant aluminum alloy expanded-diameter bus |
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| CN201710123683.3A CN106636814A (en) | 2017-03-03 | 2017-03-03 | High-strength and heat-resistant aluminum alloy expanded-diameter bus |
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Cited By (4)
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|---|---|---|---|---|
| CN107419141A (en) * | 2017-08-07 | 2017-12-01 | 中南大学 | A kind of Al Si Fe RE B alloy conductor materials and preparation method |
| CN107460378A (en) * | 2017-08-07 | 2017-12-12 | 中南大学 | A kind of Al Si Fe Mg Cu alloy conductor materials and preparation method thereof |
| CN108277396A (en) * | 2018-04-18 | 2018-07-13 | 王国祥 | A kind of heat-resisting aluminium alloy diameter enlarging bus bar and preparation method thereof |
| CN114427055A (en) * | 2022-01-26 | 2022-05-03 | 阳光电源股份有限公司 | Aluminum alloy material, conductive bar and calculation method of creep residual life of conductive bar |
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