CN102683919B - Creep-resistant aluminum alloy copper-aluminum transition terminal and preparation method thereof - Google Patents
Creep-resistant aluminum alloy copper-aluminum transition terminal and preparation method thereof Download PDFInfo
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- CN102683919B CN102683919B CN201210157477.1A CN201210157477A CN102683919B CN 102683919 B CN102683919 B CN 102683919B CN 201210157477 A CN201210157477 A CN 201210157477A CN 102683919 B CN102683919 B CN 102683919B
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Abstract
The invention provides a creep-resistant aluminum alloy copper-aluminum transition terminal, comprising a copper nose and an aluminum connection pipe, wherein a connection hole is formed on the copper nose; the aluminum connection pipe is made of a creep-resistant aluminum alloy material; the inner holes of the aluminum connection pipe respectively are in a fan-shaped structure, a tile-shaped structure, a semicircular structure and a round structure; and the creep-resistant aluminum alloy copper-aluminum transition terminal is prepared by adopting a friction welding manner. The creep-resistant aluminum alloy copper-aluminum transition terminal provided by the invention has simple structure, and can greatly improve the stability of a cable joint and reduce the construction cost of the cable joint simultaneously.
Description
Technical field
Wataru of the present invention and a kind of Creep-resistant aluminum alloy copper-aluminum transition terminal, one is applied to low voltage electric network and industrial power distribution network cable joint cuprum aluminum transition joint and preparation method thereof specifically.
Background technology
Along with the high speed development of China's economic construction, the demand of every profession and trade to electric power continues to increase, and the market space of wires and cables industry is huge.But in electric wire product structure, account for the copper of main component, aluminium conductor itself also exist the shortcoming being difficult to overcome, be described below:
1, the large (8.89g/cm of the density of pure cu conductor
3), and the copper ore resource whole world is deficient, China is again a typical Pin Tong state.Leap to the first in the world from 2004 Nian Qi China essence copper consumption figures, cause electric equipment cost to increase considerably.
2, the mechanical strength of fine aluminium conductor is on the low side, and welding performance is poor, and contact resistance is large, applies and be restricted in engineering project; Creep-resistant property more because of fine aluminium conductor is poor, causes aluminium conductor power cable frequently to break down on engineer applied.
3, the mechanical performance had along with development and the perfect technology of aluminium alloy technology, particularly creep resistant aluminium alloy conductor and electric property comprehensive advantage, make its advantage for electric wire and cable conductor more and more obvious, and its market share is in ascendant trend year by year.
Usually the copper-aluminum transition terminal manufactured and designed is primarily of copper lug and conventional aluminium tube connector composition.Shown in its structure chart 1:
The common aluminium of its nose many employings electrician copper, tube connector many employings 1350 trade mark.It is as follows that common copper-aluminum transition terminal is used for its major defect of aluminium alloy cable:
1, easily there is creep under the effect that the general aluminium of 1350 trade mark constantly changes in temperature for a long time, make its physical dimension produce irreversible change.
2, cylindrical connecting tube is used for lv power cable special-shaped conductor (as fan-shaped, tile-type, semi-circular), because the two shape difference is too large, even if take shaping measure when joint, also the profile ensureing conductor to be accomplished rounding is difficult to, cause space between conductor outside surfaces and tube connector inwall uneven, run to cable long-term stability and bring hidden danger.
Summary of the invention
The object of the invention is to develop a kind of increase substantially cable joint stability, significantly reduce being constructed into of joint, be applied to Creep-resistant aluminum alloy copper-aluminum transition terminal of low voltage electric network and industrial power distribution network and preparation method thereof
Creep-resistant aluminum alloy copper-aluminum transition terminal of the present invention, comprise: copper lug 1, the aluminium connecting tubes 2 be connected with copper lug 1, described aluminium connecting tubes 2 and cable conductor joint, the inner hole section shape of aluminium connecting tubes 2 is circular, fan-shaped, watt shape, semicircle and the shape corresponding with the cross-section of cable, and described aluminium connecting tubes 2 is consistent with cable conductor material composition.
The material of described aluminium connecting tubes 2 is creep resistant aluminium alloy, and its chemical constituent mass percent is:
Si≤0.12，Fe0.35-0.75，Cu0.15-0.25，Mg≤0.05，Zn≤0.05，
B0.001-0.04, other element (single)≤0.03, other element (summation)≤0.1, Al surplus.
Adopt creep resistant aluminum alloy materials as the aluminium connecting tubes of copper-aluminum transition terminal, its performance meets company standard Q/WL.J01-XX requirement, and specific targets are as follows.
1) mechanical performance
Tensile strength (MPa): annealed condition 60-115
Half annealing or unannealed state 105-150,
Elongation >=10%
2) electric conductivity
20 DEG C of resistivity (Ω mm
2/ m): mean value≤0.028264, indivedual point≤0.028450
%IACS: mean value >=61.0, indivedual point >=60.6
The preparation method of Creep-resistant aluminum alloy copper-aluminum transition terminal of the present invention, its step is as follows:
1) T2 trade mark electrician copper rod is adopted to form copper lug 1 according to the specification pattern of design is machined;
2) adopt creep resistant aluminium alloy to pour into aluminium connecting tubes, the chemical constituent mass percent of creep resistant aluminium alloy is:
Si：0.10，Fe：0.50，Cu0.：0.20，Mg：0.03，Zn：0.03
B:0.02, other element summation≤0.1, Al surplus.
3) friction-welding technique is adopted copper lug 1 and aluminium connecting tubes 2 to be welded together;
4) to case after copper-aluminum transition terminal being repaired warehouse-in.
The advantage of the special-shaped aluminium alloy copper-aluminum transition terminal of creep resistant of the present invention and tool preparation method is:
1, adopting creep resistant aluminium alloy to do conductor connecting tube makes itself and cable conductor reach an agreement from material composition to croop property;
2, the employing of aluminium connecting tubes endoporus is fan-shaped, watt structure such as shape, semicircle is consistent with domestic lv power cable conductor, and convenient construction, increases substantially joint thermal stability;
3, adopt Friction welding technique, under ensureing the effect that transition terminal constantly changes in temperature, weld interface does not change.
Accompanying drawing explanation
The circular creep resistant of Fig. 1 special-shaped aluminium alloy copper-aluminum transition terminal schematic diagram
The fan-shaped creep resistant of Fig. 2 special-shaped aluminium alloy copper-aluminum transition terminal schematic diagram.
Fig. 3 watt of shape creep resistant special-shaped aluminium alloy copper-aluminum transition terminal schematic diagram.
The semicircle creep resistant of Fig. 4 special-shaped aluminium alloy copper-aluminum transition terminal schematic diagram.
Embodiment
Embodiment one
Shown in root Ju Fig. 1-Fig. 4, a kind of Creep-resistant aluminum alloy copper-aluminum transition terminal, comprising: copper lug 1, the aluminium connecting tubes 2 be connected with copper lug 1, and the inner hole section shape of aluminium connecting tubes 2 is circular.
A preparation method for Creep-resistant aluminum alloy copper-aluminum transition terminal, its step is as follows:
1) T2 trade mark electrician copper rod is adopted to form copper lug 1 according to the specification pattern of design is machined;
2) adopt creep resistant aluminium alloy to be cast into aluminium connecting tubes, the chemical constituent mass percent of creep resistant aluminium alloy is:
Si：0.10，Fe：0.50，Cu0.：0.20，Mg：0.03，Zn：0.03
B:0.02, other element summation≤0.1, Al surplus.
3) friction-welding technique is adopted copper lug 1 and aluminium connecting tubes 2 to be welded together;
4) to case after copper-aluminum transition terminal being repaired warehouse-in.
Embodiment two
Shown in root Ju Fig. 1-Fig. 4, a kind of Creep-resistant aluminum alloy copper-aluminum transition terminal, comprising: copper lug 1, the aluminium connecting tubes 2 be connected with copper lug 1, and the inner hole section shape of aluminium connecting tubes 2 is fan-shaped.
1) T2 trade mark electrician copper rod is adopted to form copper lug 1 according to the specification pattern of design is machined;
2) adopt creep resistant aluminium alloy to be cast into aluminium connecting tubes, the chemical constituent mass percent of creep resistant aluminium alloy is:
Si：0.10，Fe：0.50，Cu0.：0.20，Mg：0.03，Zn：0.03
B:0.02, other element summation≤0.1, Al surplus.
3) friction-welding technique is adopted copper lug 1 and aluminium connecting tubes 2 to be welded together;
4) case into Library after copper-aluminum transition terminal being repaired.
Embodiment three
Shown in root Ju Fig. 1-Fig. 4, a kind of Creep-resistant aluminum alloy copper-aluminum transition terminal, comprising: copper lug 1, the aluminium connecting tubes 2 be connected with copper lug 1, and the inner hole section shape of aluminium connecting tubes 2 is a watt shape.
The preparation method of Creep-resistant aluminum alloy copper-aluminum transition terminal of the present invention, its step is as follows:
1) T2 trade mark electrician copper rod is adopted to form copper lug 1 according to the specification pattern of design is machined;
2) adopt creep resistant aluminium alloy to be cast into aluminium connecting tubes, the chemical constituent mass percent of creep resistant aluminium alloy is:
Si：0.08，Fe：0.75，Cu：0.15，Mg：0.01，Zn：0.01
B:0.009, other element summation≤0.1, Al surplus.
3) friction-welding technique is adopted copper lug 1 and aluminium connecting tubes 2 to be welded together;
4) to case after copper-aluminum transition terminal being repaired warehouse-in.
Claims (3)
1. a Creep-resistant aluminum alloy copper-aluminum transition terminal, it is characterized in that: comprising: copper lug (1), the aluminium connecting tubes (2) be connected with copper lug (1), described aluminium connecting tubes (2) and cable conductor joint, aluminium connecting tubes (2) is provided with interconnecting hole; Described interconnecting hole cross sectional shape is circular, fan-shaped, watt shape, semicircle and the shape corresponding with the cross-section of cable, and described aluminium connecting tubes (2) is consistent with cable conductor material composition; The material of described aluminium connecting tubes (2) is creep resistant aluminium alloy, and its chemical constituent mass percent is:
Si≤0.12，Fe0.35-0.75，Cu0.15-0.25，Mg≤0.05，Zn≤0.05，
B0.001-0.04, other element is single≤and 0.03, other element summation≤0.1, Al surplus.
2. Ju Creep-resistant aluminum alloy copper-aluminum transition terminal according to claim 1, is characterized in that: the material of described copper lug (1) is T2 trade mark electrician copper.
3. the preparation method of Ju Creep-resistant aluminum alloy copper-aluminum transition terminal according to claim 1, is characterized in that: its step is as follows
1) T2 trade mark electrician copper rod is adopted to form copper lug (1) according to the specification pattern of design is machined;
2) adopt creep resistant aluminium alloy to be cast into aluminium connecting tubes, the chemical constituent mass percent of creep resistant aluminium alloy is:
Si≤0.12，Fe0.35-0.75，Cu0.15-0.25，Mg≤0.05，Zn≤0.05，
B0.001-0.04, other element is single≤and 0.03, other element summation≤0.1, Al surplus;
3) friction-welding technique is adopted copper lug (1) and aluminium connecting tubes (2) to be welded together;
4) to case after copper-aluminum transition terminal being repaired warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210157477.1A CN102683919B (en) | 2012-05-21 | 2012-05-21 | Creep-resistant aluminum alloy copper-aluminum transition terminal and preparation method thereof |
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| CN201210157477.1A CN102683919B (en) | 2012-05-21 | 2012-05-21 | Creep-resistant aluminum alloy copper-aluminum transition terminal and preparation method thereof |
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| CN102683919A CN102683919A (en) | 2012-09-19 |
| CN102683919B true CN102683919B (en) | 2015-01-28 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757485A (en) * | 2013-12-26 | 2014-04-30 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Mg aluminum alloy and low-voltage cable manufactured by alloy |
| CN105703096A (en) * | 2016-04-15 | 2016-06-22 | 河北欣意电缆有限公司 | Copper-aluminum transition terminal of Al-Fe-Mn-RE aluminum alloy cable and preparation method thereof |
| CN105742850B (en) * | 2016-04-15 | 2018-07-20 | 河北欣意电缆有限公司 | A kind of High-performance aluminium alloy cable connection terminal |
| CN105896119A (en) * | 2016-04-15 | 2016-08-24 | 河北欣意电缆有限公司 | Al-Fe-Be-RE aluminium alloy cable copper-aluminium transition terminal and preparation method thereof |
| CN105896118A (en) * | 2016-04-15 | 2016-08-24 | 河北欣意电缆有限公司 | Al-Fe-B-RE aluminum alloy cable copper aluminum transition terminal and production method thereof |
| CN105703111A (en) * | 2016-04-15 | 2016-06-22 | 河北欣意电缆有限公司 | Copper-aluminum transition terminal of Al-Fe-Sr-RE aluminum alloy cable and preparation method thereof |
| CN112803220B (en) * | 2021-02-02 | 2023-05-16 | 浙江连能端子有限公司 | Manufacturing device for Z-shaped copper nose |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0240642A1 (en) * | 1986-03-12 | 1987-10-14 | CERAVER Société anonyme dite: | Manufacturing method of a connecting terminal for a cable terminal, and connecting terminal so obtained |
| CN102025039A (en) * | 2010-11-16 | 2011-04-20 | 加铝（天津）铝合金产品有限公司 | Copper and aluminium transition binding post |
| CN102222550A (en) * | 2011-06-24 | 2011-10-19 | 航天电工技术有限公司 | Manufacturing method of creeping-resisting aluminium alloy conductor interlocking armoring optical-fiber composite low-voltage cable |
| CN202159782U (en) * | 2011-05-11 | 2012-03-07 | 凤凰科技集团有限公司 | Copper aluminium terminal |
| CN202616436U (en) * | 2012-05-21 | 2012-12-19 | 航天电工技术有限公司 | Creep-resistant aluminum alloy copper-aluminum transition terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1007266B1 (en) * | 1997-08-27 | 2001-06-13 | The Whitaker Corporation | A method of making an electrical connector by friction welding |
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2012
- 2012-05-21 CN CN201210157477.1A patent/CN102683919B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0240642A1 (en) * | 1986-03-12 | 1987-10-14 | CERAVER Société anonyme dite: | Manufacturing method of a connecting terminal for a cable terminal, and connecting terminal so obtained |
| CN102025039A (en) * | 2010-11-16 | 2011-04-20 | 加铝（天津）铝合金产品有限公司 | Copper and aluminium transition binding post |
| CN202159782U (en) * | 2011-05-11 | 2012-03-07 | 凤凰科技集团有限公司 | Copper aluminium terminal |
| CN102222550A (en) * | 2011-06-24 | 2011-10-19 | 航天电工技术有限公司 | Manufacturing method of creeping-resisting aluminium alloy conductor interlocking armoring optical-fiber composite low-voltage cable |
| CN202616436U (en) * | 2012-05-21 | 2012-12-19 | 航天电工技术有限公司 | Creep-resistant aluminum alloy copper-aluminum transition terminal |
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Address after: 430035 Hubei Province in Qiaokou District of Wuhan city Gutian Road No. 2 Applicant after: AEROSPACE ELECTRIC TECHNOLOGY CO., LTD. Address before: 430035 Hubei Province in Qiaokou District of Wuhan city Gutian Road No. 2 Applicant before: Aerospace Electric Technology Co.,Ltd. |
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