CN104846243A - Moderate-intensity anti-corrosion aluminium alloy material and aluminium alloy rod for cable - Google Patents
Moderate-intensity anti-corrosion aluminium alloy material and aluminium alloy rod for cable Download PDFInfo
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Abstract
The invention discloses a moderate-intensity anti-corrosion aluminium alloy material and an aluminium alloy rod for a cable. The moderate-intensity anti-corrosion aluminium alloy material comprises the components of iron, silicon, magnesium, boron, copper, zinc, rare earth and the balance of aluminium; in a preparation process, an aluminium ingot, aluminum-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminum-rare earth alloy, aluminum-copper alloy, aluminum-zinc alloy and a magnesium alloy ingot are smelted to form alloy liquid, the alloy liquid is refined and stands by thermal insulation, component regulation is performed, then casting is performed to obtain a cast ingot, and homogenization treatment is performed on the cast ingot to obtain a homogenized cast ingot; the homogenized cast ingot is water-cooled, then hot rolling is performed, and the cast ingot is cooled to be below 100 DEG C to obtain hot rolling aluminum alloy; the hot rolling aluminum alloy is heated, kept warm and then cooled to room temperature, and precipitation heat treatment is performed to obtain the moderate-intensity anti-corrosion aluminium alloy material. The moderate-intensity anti-corrosion aluminium alloy material and the aluminium alloy rod for the cable are high in mechanical strength, good in corrosion resistance and excellent in comprehensive performance.
Description
Technical field
The present invention relates to technical field of aluminum alloy technology, particularly relate to strength corrosion resistant aluminum alloy materials and cable aluminium alloy rod in one.
Background technology
At present, along with the development of conductor alloying, apply also increasingly extensive using aluminum alloy materials at home and abroad as the transmission pressure of conductor material and reinforcement material, its representation type comprises all aluminium alloy twisted wire and aluminum stranded wire of aluminum alloy core.All aluminium alloy twisted wire is made up of same material, and manufacturing process is very easy, and has plurality of advantages on engineer applied.Along with the development of society, the quality and quantity of people to aluminum alloy materials is proposed higher requirement, at present, because product performance require constantly to raise, its composition and engineering of existing aluminum alloy materials is not quite reasonable, the aluminum alloy materials obtained cannot obtain desirable performance, there is the not good enough problem of erosion resistance, and shorten the work-ing life of Al-alloy products in the process used.Therefore, explore a kind of formula of middle strength corrosion resistant aluminium alloy, and coordinate its preparation technology of optimization, thus the aluminum alloy materials obtaining performance more excellent has become the technical problem needing solution at present badly.
Summary of the invention
Based on the technical problem that above-mentioned background technology exists, the present invention proposes strength corrosion resistant aluminum alloy materials and cable aluminium alloy rod in one, and its physical strength is high, erosion resistance good, excellent combination property.
The present invention proposes strength corrosion resistant aluminum alloy materials in one, its composition comprises by massfraction: iron 0.18-0.25%, silicon 0.1-0.5%, magnesium 0.5-1.5%, boron 0.01-0.03%, copper 1-1.8%, zinc 3.5-5.3%, rare earth 0.1-0.15%, surplus are aluminium;
According to mentioned component proportioning, described middle strength corrosion resistant aluminum alloy materials is prepared according to following technique:
S1, aluminium ingot is incubated 20-35min at 670-700 DEG C, be warming up to 720-750 DEG C, then add aluminium-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminium-rare-earth alloy, Al-zn-mg-cu alloy, aluminum-zinc alloy, magnesium ingot carry out melting and form aluminium alloy, then refining 20-30min at 730-740 DEG C, then carry out being incubated standing 30-50min at 720-730 DEG C; Before casting, carry out the regulation and control of aluminium alloy composition, then carry out casting and obtain ingot casting, wherein, pouring temperature is 690-720 DEG C, and gained ingot casting temperature is 480-520 DEG C, then carries out Homogenization Treatments to ingot casting and obtain homogenizing ingot casting, wherein, the temperature of Homogenization Treatments is 400-450 DEG C;
S2, the homogenizing ingot casting obtained in S1 is carried out water-cooled, then carry out hot rolling, wherein, in the process of hot rolling, entering to roll temperature is 480-520 DEG C, and finishing temperature is 340-380 DEG C, is then cooled to less than 100 DEG C and obtains hot rolling aluminium alloy;
S3, the hot rolling aluminium alloy obtained is carried out artificial aging obtain described middle strength corrosion resistant aluminum alloy materials in S2, wherein, artificially aged temperature is 122-128 DEG C, and the artificially aged time is 3-4h.
Wherein, its composition comprises by massfraction: iron 0.2-0.23%, silicon 0.17-0.4%, magnesium 0.6-1.3%, boron 0.015-0.023%, copper 1.2-1.6%, zinc 3.9-4.3%, rare earth 0.11-0.14%, surplus are aluminium.
Wherein, the composition of described rare earth comprises by weight: La 10-15 part, Dy 15-20 part, Nd 8-15 part, Sm 2-5 part, Eu 1-5 part, Ce 10-25 part; Preferably, the composition of described rare earth comprises by weight: La 12-14.5 part, Dy 16-18 part, Nd 10-13 part, Sm 3-4.5 part, Eu 3-4 part, Ce 18-21 part.
Wherein, in S1, in refining process, refining agent add-on is the 0.3-0.4% of charging weight, and after refining, in aluminium alloy, hydrogen richness is 0.10 ~ 0.12ml/100g; Preferably, in S1, in refining process, refining agent add-on is the 0.32-0.38% of charging weight, and after refining, in aluminium alloy, hydrogen richness is 0.11 ~ 0.12ml/100g.
Wherein, in S1, pouring temperature is 705-720 DEG C, and gained ingot casting temperature is 500-520 DEG C.
Wherein, in S1, the temperature of Homogenization Treatments is 420-440 DEG C.
Wherein, in S2, when carrying out water-cooled to ingot casting, employing water temperature is that the water coolant of 30-40 DEG C carries out water-cooled, the hydraulic pressure >=3pa of water coolant.
Wherein, in S2, in the process of hot rolling, entering to roll temperature is 490-510 DEG C, and finishing temperature is 350-365 DEG C; Preferably, in the process of hot rolling, entering to roll temperature is 500 DEG C, and finishing temperature is 360 DEG C.
Wherein, in S3, artificially aged temperature is 124-127 DEG C, and the artificially aged time is 3.3-3.8h.
The invention allows for strength corrosion resistant aluminium alloy rod in a kind of cable use, adopt described middle strength corrosion resistant aluminum alloy materials to be prepared from.
In the present invention, the composition of existing middle strength corrosion resistant aluminium alloy is adjusted, obtain strengthening phase, significantly improve the tensile strength of aluminum alloy materials, yield strength and corrosion resistance nature, by optimizing alloying constituent and the alloying technology of aluminium alloy, regulating and controlling the proportioning of aluminium, zinc, copper, magnesium four kinds of elements, having laid a good foundation for finally obtaining strength corrosion resistant aluminium alloy in excellent performance; Its preparation technology of optimizing components of strength corrosion resistant aluminum alloy materials in cooperation, by carrying out reasonable set to processing parameter, make in strength corrosion resistant aluminium alloy forming process, deformation is reasonable, the Homogenization Treatments carried out after ingot casting, eliminates the ununiformity of intracrystalline chemical composition and tissue, decreases the internal stress produced when ingot casting cools, improve the thermoplasticity of ingot casting, improve the intensity of alloy; After further control hot rolling, the temperature of aluminium alloy, is cooled to less than 100 DEG C, prevents alloying element loss of strength, prepares for follow-up artificial aging obtains good strengthening effect; By setting good artificial aging parameter, giving full play to the strengthening effect of alloying element, forming well-distributed strengthening phase, make that the middle strength corrosion resistant aluminum alloy materials physical strength that obtains is high, erosion resistance good, excellent combination property.
The invention also discloses the cable aluminium alloy rod adopting above-mentioned middle strength corrosion resistant aluminum alloy materials to prepare, its technique effect is substantially identical with above-mentioned middle strength corrosion resistant aluminum alloy materials, repeats no more herein.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
Strength corrosion resistant aluminum alloy materials in the one that the present invention proposes, its composition comprises by massfraction: iron 0.25%, silicon 0.1%, magnesium 1.5%, boron 0.01%, copper 1.8%, zinc 3.5%, rare earth 0.15%, surplus are aluminium; Wherein, the composition of described rare earth comprises by weight: La 10 parts, Dy 20 parts, Nd 8 parts, Sm 5 parts, Eu 1 part, Ce 25 parts;
According to mentioned component proportioning, described middle strength corrosion resistant aluminum alloy materials is prepared according to following technique:
S1, aluminium ingot is incubated 35min at 670 DEG C, be warming up to 720 DEG C, then add aluminium-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminium-rare-earth alloy, Al-zn-mg-cu alloy, aluminum-zinc alloy, magnesium ingot carry out melting and form aluminium alloy, then refining 20min at 740 DEG C, wherein, refining agent add-on is 0.35% of charging weight, and after refining, in aluminium alloy, hydrogen richness is 0.11ml/100g, then carries out being incubated standing 30min at 730 DEG C; The regulation and control of aluminium alloy composition were carried out before casting, aluminium alloy is made to meet mentioned component proportioning, then carry out casting and obtain ingot casting, wherein, pouring temperature is 720 DEG C, and gained ingot casting temperature is 480 DEG C, then carries out Homogenization Treatments to ingot casting and obtain homogenizing ingot casting, wherein, the temperature of Homogenization Treatments is 450 DEG C;
S2, the homogenizing ingot casting obtained in S1 is carried out water-cooled, wherein, when carrying out water-cooled to ingot casting, employing water temperature is that the water coolant of 30-40 DEG C carries out water-cooled, the hydraulic pressure >=3pa of water coolant, then hot rolling is carried out, wherein, in the process of hot rolling, entering to roll temperature is 480 DEG C, finishing temperature is 380 DEG C, is then cooled to less than 100 DEG C and obtains hot rolling aluminium alloy;
S3, the hot rolling aluminium alloy obtained is carried out artificial aging obtain described middle strength corrosion resistant aluminum alloy materials in S2, wherein, artificially aged temperature is 122 DEG C, and the artificially aged time is 4h.
Embodiment 2
Strength corrosion resistant aluminum alloy materials in the one that the present invention proposes, its composition comprises by massfraction: iron 0.18%, silicon 0.5%, magnesium 0.5%, boron 0.03%, copper 1%, zinc 5.3%, rare earth 0.1%, surplus are aluminium; Wherein, the composition of described rare earth comprises by weight: La 15 parts, Dy 15 parts, Nd 15 parts, Sm 2 parts, Eu 5 parts, Ce 10 parts;
According to mentioned component proportioning, described middle strength corrosion resistant aluminum alloy materials is prepared according to following technique:
S1, aluminium ingot is incubated 20min at 700 DEG C, be warming up to 750 DEG C, then add aluminium-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminium-rare-earth alloy, Al-zn-mg-cu alloy, aluminum-zinc alloy, magnesium ingot carry out melting and form aluminium alloy, then refining 30min at 730 DEG C, wherein, refining agent add-on is 0.32% of charging weight, and after refining, in aluminium alloy, hydrogen richness is 0.12ml/100g, then carries out being incubated standing 50min at 720 DEG C; The regulation and control of aluminium alloy composition were carried out before casting, aluminium alloy is made to meet mentioned component proportioning, then carry out casting and obtain ingot casting, wherein, pouring temperature is 690 DEG C, and gained ingot casting temperature is 520 DEG C, then carries out Homogenization Treatments to ingot casting and obtain homogenizing ingot casting, wherein, the temperature of Homogenization Treatments is 400 DEG C;
S2, the homogenizing ingot casting obtained in S1 is carried out water-cooled, wherein, when carrying out water-cooled to ingot casting, employing water temperature is that the water coolant of 30-40 DEG C carries out water-cooled, the hydraulic pressure >=3pa of water coolant, then hot rolling is carried out, wherein, in the process of hot rolling, entering to roll temperature is 520 DEG C, finishing temperature is 340 DEG C, is then cooled to less than 100 DEG C and obtains hot rolling aluminium alloy;
S3, the hot rolling aluminium alloy obtained is carried out artificial aging obtain described middle strength corrosion resistant aluminum alloy materials in S2, wherein, artificially aged temperature is 128 DEG C, and the artificially aged time is 3h.
Embodiment 3
Strength corrosion resistant aluminum alloy materials in the one that the present invention proposes, its composition comprises by massfraction: iron 0.2%, silicon 0.4%, magnesium 0.6%, boron 0.023%, copper 1.2%, zinc 4.3%, rare earth 0.11%, surplus are aluminium; Wherein, the composition of described rare earth comprises by weight: La 14.5 parts, Dy 16 parts, Nd 13 parts, Sm 3 parts, Eu 4 parts, Ce 18 parts;
According to mentioned component proportioning, described middle strength corrosion resistant aluminum alloy materials is prepared according to following technique:
S1, aluminium ingot is incubated 32min at 678 DEG C, be warming up to 729 DEG C, then add aluminium-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminium-rare-earth alloy, Al-zn-mg-cu alloy, aluminum-zinc alloy, magnesium ingot carry out melting and form aluminium alloy, then refining 28min at 733 DEG C, wherein, refining agent add-on is 0.38% of charging weight, and after refining, in aluminium alloy, hydrogen richness is 0.11ml/100g, then carries out being incubated standing 39min at 723 DEG C; The regulation and control of aluminium alloy composition were carried out before casting, aluminium alloy is made to meet mentioned component proportioning, then carry out casting and obtain ingot casting, wherein, pouring temperature is 705 DEG C, and gained ingot casting temperature is 520 DEG C, then carries out Homogenization Treatments to ingot casting and obtain homogenizing ingot casting, wherein, the temperature of Homogenization Treatments is 420 DEG C;
S2, the homogenizing ingot casting obtained in S1 is carried out water-cooled, wherein, when carrying out water-cooled to ingot casting, employing water temperature is that the water coolant of 30-40 DEG C carries out water-cooled, the hydraulic pressure >=3pa of water coolant, then hot rolling is carried out, wherein, in the process of hot rolling, entering to roll temperature is 490 DEG C, finishing temperature is 365 DEG C, is then cooled to less than 100 DEG C and obtains hot rolling aluminium alloy;
S3, the hot rolling aluminium alloy obtained is carried out artificial aging obtain described middle strength corrosion resistant aluminum alloy materials in S2, wherein, artificially aged temperature is 124 DEG C, and the artificially aged time is 3.8h.
Embodiment 4
Strength corrosion resistant aluminum alloy materials in the one that the present invention proposes, its composition comprises by massfraction: iron 0.23%, silicon 0.17%, magnesium 1.3%, boron 0.015%, copper 1.6%, zinc 3.9%, rare earth 0.14%, surplus are aluminium; Wherein, the composition of described rare earth comprises by weight: La 12 parts, Dy 18 parts, Nd 10 parts, Sm 4.5 parts, Eu 3 parts, Ce 21 parts;
According to mentioned component proportioning, described middle strength corrosion resistant aluminum alloy materials is prepared according to following technique:
S1, aluminium ingot is incubated 26min at 694 DEG C, be warming up to 743 DEG C, then add aluminium-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminium-rare-earth alloy, Al-zn-mg-cu alloy, aluminum-zinc alloy, magnesium ingot carry out melting and form aluminium alloy, then refining 24min at 738 DEG C, wherein, refining agent add-on is 0.3% of charging weight, and after refining, in aluminium alloy, hydrogen richness is 0.12ml/100g, then carries out being incubated standing 46min at 728 DEG C; The regulation and control of aluminium alloy composition were carried out before casting, aluminium alloy is made to meet mentioned component proportioning, then carry out casting and obtain ingot casting, wherein, pouring temperature is 720 DEG C, and gained ingot casting temperature is 500 DEG C, then carries out Homogenization Treatments to ingot casting and obtain homogenizing ingot casting, wherein, the temperature of Homogenization Treatments is 450 DEG C;
S2, the homogenizing ingot casting obtained in S1 is carried out water-cooled, wherein, when carrying out water-cooled to ingot casting, employing water temperature is that the water coolant of 30-40 DEG C carries out water-cooled, the hydraulic pressure >=3pa of water coolant, then hot rolling is carried out, wherein, in the process of hot rolling, entering to roll temperature is 510 DEG C, finishing temperature is 350 DEG C, is then cooled to less than 100 DEG C and obtains hot rolling aluminium alloy;
S3, the hot rolling aluminium alloy obtained is carried out artificial aging obtain described middle strength corrosion resistant aluminum alloy materials in S2, wherein, artificially aged temperature is 127 DEG C, and the artificially aged time is 3.3h.
Embodiment 5
Strength corrosion resistant aluminum alloy materials in the one that the present invention proposes, its composition comprises by massfraction: iron 0.22%, silicon 0.3%, magnesium 0.68%, boron 0.02%, copper 1.5%, zinc 4%, rare earth 0.13%, surplus are aluminium; Wherein, the composition of described rare earth comprises by weight: La 13 parts, Dy 16.5 parts, Nd 12 parts, Sm 3.8 parts, Eu 3.4 parts, Ce 20 parts;
According to mentioned component proportioning, described middle strength corrosion resistant aluminum alloy materials is prepared according to following technique:
S1, aluminium ingot is incubated 30min at 685 DEG C, be warming up to 735 DEG C, then add aluminium-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminium-rare-earth alloy, Al-zn-mg-cu alloy, aluminum-zinc alloy, magnesium ingot carry out melting and form aluminium alloy, then refining 27min at 736 DEG C, wherein, refining agent add-on is 0.4% of charging weight, and after refining, in aluminium alloy, hydrogen richness is 0.10ml/100g, then carries out being incubated standing 40min at 726 DEG C; The regulation and control of aluminium alloy composition were carried out before casting, aluminium alloy is made to meet mentioned component proportioning, then carry out casting and obtain ingot casting, wherein, pouring temperature is 710 DEG C, and gained ingot casting temperature is 515 DEG C, then carries out Homogenization Treatments to ingot casting and obtain homogenizing ingot casting, wherein, the temperature of Homogenization Treatments is 435 DEG C;
S2, the homogenizing ingot casting obtained in S1 is carried out water-cooled, wherein, when carrying out water-cooled to ingot casting, employing water temperature is that the water coolant of 30-40 DEG C carries out water-cooled, the hydraulic pressure >=3pa of water coolant, then hot rolling is carried out, wherein, in the process of hot rolling, entering to roll temperature is 500 DEG C, finishing temperature is 360 DEG C, is then cooled to less than 100 DEG C and obtains hot rolling aluminium alloy;
S3, the hot rolling aluminium alloy obtained is carried out artificial aging obtain described middle strength corrosion resistant aluminum alloy materials in S2, wherein, artificially aged temperature is 125 DEG C, and the artificially aged time is 3.6h.
The invention allows for a kind of cable be prepared from by strength corrosion resistant aluminum alloy materials in embodiment 1-5 with in strength corrosion resistant aluminium alloy rod.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. strength corrosion resistant aluminum alloy materials in a kind, it is characterized in that, its composition comprises by massfraction: iron 0.18-0.25%, silicon 0.1-0.5%, magnesium 0.5-1.5%, boron 0.01-0.03%, copper 1-1.8%, zinc 3.5-5.3%, rare earth 0.1-0.15%, surplus are aluminium;
According to mentioned component proportioning, described middle strength corrosion resistant aluminum alloy materials is prepared according to following technique:
S1, aluminium ingot is incubated 20-35min at 670-700 DEG C, be warming up to 720-750 DEG C, then add aluminium-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminium-rare-earth alloy, Al-zn-mg-cu alloy, aluminum-zinc alloy, magnesium ingot carry out melting and form aluminium alloy, then refining 20-30min at 730-740 DEG C, then carry out being incubated standing 30-50min at 720-730 DEG C; Before casting, carry out the regulation and control of aluminium alloy composition, then carry out casting and obtain ingot casting, wherein, pouring temperature is 690-720 DEG C, and gained ingot casting temperature is 480-520 DEG C, then carries out Homogenization Treatments to ingot casting and obtain homogenizing ingot casting, wherein, the temperature of Homogenization Treatments is 400-450 DEG C;
S2, the homogenizing ingot casting obtained in S1 is carried out water-cooled, then carry out hot rolling, wherein, in the process of hot rolling, entering to roll temperature is 480-520 DEG C, and finishing temperature is 340-380 DEG C, is then cooled to less than 100 DEG C and obtains hot rolling aluminium alloy;
S3, the hot rolling aluminium alloy obtained is carried out artificial aging obtain described middle strength corrosion resistant aluminum alloy materials in S2, wherein, artificially aged temperature is 122-128 DEG C, and the artificially aged time is 3-4h.
2. according to claim 1 in strength corrosion resistant aluminum alloy materials, it is characterized in that, its composition comprises by massfraction: iron 0.2-0.23%, silicon 0.17-0.4%, magnesium 0.6-1.3%, boron 0.015-0.023%, copper 1.2-1.6%, zinc 3.9-4.3%, rare earth 0.11-0.14%, surplus are aluminium.
3. strength corrosion resistant aluminum alloy materials according to claim 1 or 2, it is characterized in that, the composition of described rare earth comprises by weight: La 10-15 part, Dy 15-20 part, Nd 8-15 part, Sm 2-5 part, Eu 1-5 part, Ce 10-25 part; Preferably, the composition of described rare earth comprises by weight: La 12-14.5 part, Dy 16-18 part, Nd 10-13 part, Sm 3-4.5 part, Eu 3-4 part, Ce 18-21 part.
4. strength corrosion resistant aluminum alloy materials according to any one of claim 1-3, it is characterized in that, in S1, in refining process, refining agent add-on is the 0.3-0.4% of charging weight, and after refining, in aluminium alloy, hydrogen richness is 0.10 ~ 0.12ml/100g; Preferably, in S1, in refining process, refining agent add-on is the 0.32-0.38% of charging weight, and after refining, in aluminium alloy, hydrogen richness is 0.11 ~ 0.12ml/100g.
5. strength corrosion resistant aluminum alloy materials according to any one of claim 1-4, it is characterized in that, in S1, pouring temperature is 705-720 DEG C, and gained ingot casting temperature is 500-520 DEG C.
6. strength corrosion resistant aluminum alloy materials according to any one of claim 1-5, it is characterized in that, in S1, the temperature of Homogenization Treatments is 420-440 DEG C.
7. according to any one of claim 1-6, the preparation method of strength aluminium alloy bar, is characterized in that, in S2, when carrying out water-cooled to ingot casting, employing water temperature is that the water coolant of 30-40 DEG C carries out water-cooled, the hydraulic pressure >=3pa of water coolant.
8. strength corrosion resistant aluminum alloy materials according to any one of claim 1-7, it is characterized in that, in S2, in the process of hot rolling, entering to roll temperature is 490-510 DEG C, and finishing temperature is 350-365 DEG C; Preferably, in the process of hot rolling, entering to roll temperature is 500 DEG C, and finishing temperature is 360 DEG C.
9. strength corrosion resistant aluminum alloy materials according to any one of claim 1-8, it is characterized in that, in S3, artificially aged temperature is 124-127 DEG C, and the artificially aged time is 3.3-3.8h.
10. a strength corrosion resistant aluminium alloy rod in cable use, is characterized in that, adopts strength corrosion resistant aluminum alloy materials according to any one of claim 1-9 to be prepared from.
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| CN107245617A (en) * | 2017-06-13 | 2017-10-13 | 上海新益电力线路器材有限公司 | A kind of power circuit power transmission and transformation aluminium alloy element and preparation method thereof |
| CN107190215B (en) * | 2017-06-13 | 2019-07-05 | 上海新益电力线路器材有限公司 | A kind of aluminium alloy base power circuit component and preparation method thereof |
| CN107245617B (en) * | 2017-06-13 | 2019-07-05 | 上海新益电力线路器材有限公司 | A kind of power circuit power transmission and transformation aluminium alloy element and preparation method thereof |
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| CN110310757A (en) * | 2019-07-17 | 2019-10-08 | 天津市津和双金属线材有限公司 | A kind of preparation method of the dedicated aluminium bar of aluminum enameled wire |
| CN114921675A (en) * | 2022-05-27 | 2022-08-19 | 国网河南省电力公司电力科学研究院 | Wear-resistant aluminum alloy and preparation method thereof |
| CN114921675B (en) * | 2022-05-27 | 2023-09-08 | 国网河南省电力公司电力科学研究院 | Wear-resistant aluminum alloy and preparation method thereof |
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