CN103886996B - Steel-core-aluminium alloy molded line Wire twisting frame hollow wire and manufacturing process thereof - Google Patents
Steel-core-aluminium alloy molded line Wire twisting frame hollow wire and manufacturing process thereof Download PDFInfo
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- CN103886996B CN103886996B CN201410040202.9A CN201410040202A CN103886996B CN 103886996 B CN103886996 B CN 103886996B CN 201410040202 A CN201410040202 A CN 201410040202A CN 103886996 B CN103886996 B CN 103886996B
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Abstract
The present invention relates to a kind of new special aerial condutor used under the adverse circumstances of power transmission engineering, overcome long distance transmission line to cause the unsafe adverse effect of transmission line of electricity, and meet mechanical property and the mechanical performance of molded line strand system.Conductor cross-section is SZ shape, it is as follows that wire diameter is not more than 39.60mm, SZ shape high-strength steel core aluminium alloy molded line Wire twisting frame hollow wire manufacturing process: (1) preparation meets the high-strength aluminum alloy liquid composition of high-strength aluminum alloy bar electric conductivity and mechanical and physical performance；Following al alloy component is controlled in suitable scope, such as Si0.5～0.7%, Mg0.6～0.9%.(2) high-strength aluminum alloy liquid adopt the special process of transmission losses when improving conductivity, reduction circuit operation process；(3) the continuous casting and rolling rolling final temperature of high-strength aluminum alloy bar controls within 100 DEG C；(4) by SZ shape high-strength aluminum alloy bracing wire mould, high speed molded line drawing machine is adopted to draw high-strength aluminum alloy SZ shape line；(5) Ф 630/84B type frame type stranding machine is adopted to carry out strand system.
Description
Technical field
The present invention relates to the new special aerial condutor used under the adverse circumstances such as a kind of Great span section at power transmission engineering and middle ice formation, heavy icing area.
Background technology
In power transmission engineering construction project, there are many hundreds of or even thousands of miles long distance powedr transmission engineering, transmission line of electricity must through various different natural environment sections, especially the natural environment section that heavy icing area, middle ice formation etc. are severe, the icing layer of aerial condutor can affect transmission line of electricity safe operation.It is thus desirable to it is a kind of when aerial condutor cross sectional shape is constant, reduce overhead conducting wire outer diameter, in the extreme natural environment such as heavy icing area, the middle ice formation low aerial condutor icing weight of decline, avoid because serious natural disaster causes the significant damage of grid safe operation, ensure the safe and reliable operation of electrical network, there is good social economic effect, simultaneously when manufacturing this aerial condutor, must being fulfilled for good electric conductivity, mechanical property and mechanical and physical performance, also needing to meet wire strand during wire stranding, to make tight rounding not loose.
Summary of the invention
The present invention overcomes long distance transmission line to cause greatly the unsafe adverse effect of transmission line of electricity because of common aerial condutor icing weight, and twists mechanical property and the mechanical performance of system by improving the manufacturing process of high-strength aluminum alloy bar to meet molded line.
For reaching above-mentioned purpose, the present invention takes following technical scheme:
Steel-core-aluminium alloy molded line Wire twisting frame hollow wire, conductor cross-section is SZ shape, and wire diameter is not more than 39.60mm.
Above-mentioned wire diameter and external diameter are compared with the plain conductor that 43.60mm, cross sectional shape are identical, external diameter reduces more than 4mm, extreme natural environment section at transmission line of electricity, as there is the natural disaster such as sleet, icing in aerial condutor, in same ice covering thickness situation, wire diameter reduces, it is possible to alleviate the icing weight of wire, improve the reliability of transmission line of electricity safe operation, be very suitable for the transmission line of electricity section under extreme natural environment and large span power transmission engineering uses.
The manufacturing process of above-mentioned aerial condutor is as follows:
(1) preparation meets the high-strength aluminum alloy liquid composition of high-strength aluminum alloy bar electric conductivity and mechanical and physical performance；Following al alloy component is controlled in suitable scope, such as Si0.5～0.7%, Mg0.6～0.9%.
(2) high-strength aluminum alloy liquid adopt the special process of transmission losses when improving conductivity, reduction circuit operation process；
(i) carry out borax treatment: remove Mn, Cr, V, the Ti in aluminium alloy, improve conductivity.
(ii) increase ferrum to process: improve the tensile strength of aluminium alloy further
(iii) degasification slagging-off processes: remove hydrogen and small slag particle, the purifying aluminum alloy liquid of aluminum alloy melt.
(iv) filtration treatment: remove the fine particle in aluminum alloy melt further.
(3) the continuous casting and rolling rolling final temperature of high-strength aluminum alloy bar controls within 100 DEG C；
(4) by SZ shape high-strength aluminum alloy bracing wire mould, high speed molded line drawing machine is adopted to draw high-strength aluminum alloy SZ shape line, so as to meet the high-strength aluminum alloy SZ shape linear dimension requirement that the technology that meets requires；
(5) frame type stranding machine is adopted to carry out strand system, ensure the stranded even tension of SZ shape high-strength steel core aluminium alloy molded line twisted wire, frame type stranding machine is provided with pre twist and prevents high-strength aluminum alloy SZ shape line equipment for supporting patient with burn simultaneously, adopt ripe twisting process technology, it is ensured that it is not loose that wire strand makes tight rounding.
The manufacture of high-strength aluminum alloy bar must is fulfilled for its electric conductivity and mechanical and physical performance, by the Z-shaped high-strength aluminum alloy bracing wire mould of New type of S, substitute currently used typical round mould, it is uniform that molded line strand makes each SZ shape high-strength aluminum alloy line tension, molded line strand system and pretwist (preform) meet corresponding technical conditions, molded line strand system closely (not loose), rounding and smooth surface.
The present invention is compared with common aerial condutor, there is the molded line Wire twisting frame hollow wire of same cross-sectional shape and have that external diameter is little, twisted wire smooth surface, icing layer thickness and weight can be reduced, there is the characteristics such as good anti-ice-snow, anticorrosive and anti-loading, therefore the reliability of transmission line of electricity safe operation can be improved to greatest extent, promoting the use of of the molded line Wire twisting frame hollow wire of various different sizes, it will be greatly improved reliability and the protection of electric power netting safe running, it will have obvious economic results in society.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of the present invention.
Description of reference numerals: 1-steel core；2-SZ shape aluminium alloy wire.
Detailed description of the invention
Below in conjunction with drawings and Examples, present invention is described further.
As shown in Figure 1, the present invention is the JLHA2X/G1A-1035/75 steel-core-aluminium alloy molded line twisted wire of SZ tee section structure, by steel core 1 with SZ shape aluminium alloy wire 2 is stranded forms, its concrete specification is by 19/ Φ 2.24 galvanized steel wire and 10/ Φ 4.45(equivalent diameter), 14/ Φ 4.56(equivalent diameter), 18/ Φ 4.56(equivalent diameter) and 22/ Φ 4.56(equivalent diameter) high intensity SZ shape aluminium alloy wire is stranded forms, the external diameter of they correspondences respectively Φ 11.20, Φ 18.30, Φ 25.40, Φ 32.40 and Φ 39.50, wherein Φ 39.50 is molded line twisted wire external diameter, 4.10mm is decreased than plain conductor external diameter 43.60mm, alleviate the icing weight of wire.
The manufacturing process of JLHA2X/G1A-1035/75 steel-core-aluminium alloy molded line twisted wire is as follows:
(1) preparation meets the high-strength aluminum alloy liquid composition of high-strength aluminum alloy bar electric conductivity and mechanical and physical performance；Following al alloy component is controlled in suitable scope, such as Si0.5～0.7%, Mg0.6～0.9%.
(2) high-strength aluminum alloy liquid adopt the special process of transmission losses when improving conductivity, reduction circuit operation process；
(i) carry out borax treatment: remove Mn, Cr, V, the Ti in aluminium alloy, improve conductivity.
(ii) increase ferrum to process: improve the tensile strength of aluminium alloy further
(iii) degasification slagging-off processes: remove hydrogen and small slag particle, the purifying aluminum alloy liquid of aluminum alloy melt.
(iv) filtration treatment: remove the fine particle in aluminum alloy melt further.
(3) the continuous casting and rolling rolling final temperature of high-strength aluminum alloy bar controls within 100 DEG C；
(4) by SZ shape high-strength aluminum alloy bracing wire mould, high speed molded line drawing machine is adopted to draw high-strength aluminum alloy SZ shape line；
(5) Ф 630/84B type frame type stranding machine is adopted to carry out strand system.
Claims (1)
1. a steel-core-aluminium alloy molded line Wire twisting frame hollow wire manufacturing process, it is characterised in that:
(1) preparation meets the high-strength aluminum alloy liquid composition of high-strength aluminum alloy bar electric conductivity and mechanical and physical performance；Following al alloy component is controlled at Si0.5～0.7%, Mg0.6～0.9%；
(2) high-strength aluminum alloy liquid adopt the special process of transmission losses when improving conductivity, reduction circuit operation process；
(i) carry out borax treatment: remove Mn, Cr, V, the Ti in aluminium alloy, improve conductivity；
(ii) increase ferrum to process: improve the tensile strength of aluminium alloy further；
(iii) degasification slagging-off processes: remove hydrogen and small slag particle, the purifying aluminum alloy liquid of aluminum alloy melt；
(iv) filtration treatment: remove the fine particle in aluminum alloy melt further；
(3) the continuous casting and rolling rolling final temperature of high-strength aluminum alloy bar controls within 100 DEG C；
(4) by SZ shape high-strength aluminum alloy bracing wire mould, high speed molded line drawing machine is adopted to draw high-strength aluminum alloy SZ shape line；
(5) adopt frame type stranding machine to carry out strand system, described frame type stranding machine is provided with pre twist and prevents high-strength aluminum alloy SZ shape line equipment for supporting patient with burn.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410040202.9A CN103886996B (en) | 2014-01-27 | 2014-01-27 | Steel-core-aluminium alloy molded line Wire twisting frame hollow wire and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410040202.9A CN103886996B (en) | 2014-01-27 | 2014-01-27 | Steel-core-aluminium alloy molded line Wire twisting frame hollow wire and manufacturing process thereof |
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| CN103886996A CN103886996A (en) | 2014-06-25 |
| CN103886996B true CN103886996B (en) | 2016-06-29 |
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| CN201410040202.9A Active CN103886996B (en) | 2014-01-27 | 2014-01-27 | Steel-core-aluminium alloy molded line Wire twisting frame hollow wire and manufacturing process thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107068300A (en) * | 2017-03-28 | 2017-08-18 | 江苏藤仓亨通光电有限公司 | A kind of manufacturing process of high-strength high-conductivity copper-magnesium alloy strand |
| CN111128445B (en) * | 2019-12-06 | 2022-03-08 | 远东电缆有限公司 | Aluminum-manganese alloy steel-clad reinforced overhead conductor and preparation process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200783A (en) * | 2006-12-11 | 2008-06-18 | 上海中天铝线有限公司 | Method for manufacturing high-strength aluminium-magnesium-slicon alloy wire |
| CN101956103A (en) * | 2010-10-20 | 2011-01-26 | 云南铝业股份有限公司 | High strength alloy round aluminium rod and production method thereof |
| CN201868153U (en) * | 2010-09-15 | 2011-06-15 | 武汉电缆集团有限公司 | Device for preventing torsion and turning in processing of shaped overhead conductors |
| CN202134262U (en) * | 2011-07-27 | 2012-02-01 | 郑州华力电缆有限公司 | Anti-ice-snow overhead conductor |
| EP2639797A1 (en) * | 2012-03-12 | 2013-09-18 | Nexans | Electric transport cable, in particular for an overhead line |
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2014
- 2014-01-27 CN CN201410040202.9A patent/CN103886996B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200783A (en) * | 2006-12-11 | 2008-06-18 | 上海中天铝线有限公司 | Method for manufacturing high-strength aluminium-magnesium-slicon alloy wire |
| CN201868153U (en) * | 2010-09-15 | 2011-06-15 | 武汉电缆集团有限公司 | Device for preventing torsion and turning in processing of shaped overhead conductors |
| CN101956103A (en) * | 2010-10-20 | 2011-01-26 | 云南铝业股份有限公司 | High strength alloy round aluminium rod and production method thereof |
| CN202134262U (en) * | 2011-07-27 | 2012-02-01 | 郑州华力电缆有限公司 | Anti-ice-snow overhead conductor |
| EP2639797A1 (en) * | 2012-03-12 | 2013-09-18 | Nexans | Electric transport cable, in particular for an overhead line |
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Address after: 510620 Tianhe Road 116, Guangdong, Guangzhou Applicant after: Super-High Transmission Co., China South Electric-Net Co., Ltd. Applicant after: Hangzhou Cable Co., Ltd. Applicant after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Address before: 510620 Tianhe Road 116, Guangdong, Guangzhou Applicant before: Super-High Transmission Co., China South Electric-Net Co., Ltd. Applicant before: Hangzhou Cable Co., Ltd. Applicant before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
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