CN101976601B - Round compressing process of stranded aluminum conductor - Google Patents
Round compressing process of stranded aluminum conductor Download PDFInfo
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- CN101976601B CN101976601B CN 201010521808 CN201010521808A CN101976601B CN 101976601 B CN101976601 B CN 101976601B CN 201010521808 CN201010521808 CN 201010521808 CN 201010521808 A CN201010521808 A CN 201010521808A CN 101976601 B CN101976601 B CN 101976601B
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Abstract
The invention relates to a round compressing process of a stranded aluminum conductor. Two round compressed stretching dies are continuously adopted on the same stranded layer without speed-change traction between, the wire-cable stranded aluminum conductor is roundly and basically compressed, stretched and deformed on aluminum filaments on a surface layer, and the aluminum filaments on the outer layer subjected to primary stretching and deforming have smaller cross sections and are slightly longer than aluminum wires on an inner layer so that a lightly loosening phenomenon occurs in the filaments on the surface layer between the stretching dies, which is convenient to repair broken filaments. In addition, because of hard aluminum filaments, the aluminum filaments on the outer layer are loose and have weak tension compared with the aluminum filaments on the inner layer, the aluminum filaments on the outer layer and the inner layer can slightly slide, the lightly loosening phenomenon disappears after the aluminum filaments pass through the secondary stretching die, and stranded aluminum wires are compact and round.
Description
Technical field
The invention belongs to the electric wire and cable conductor manufacture field, relate in particular to the manufacture craft that a kind of stranded conductor circle is pressed.
Background technology
The circle of present electric wire stranded conductor is pressed production method and is all adopted drawing die to process; And generally do not adopt any lubricant, in order to avoid conductor or insulation are produced harm, single wire fracture is unavoidable in the course of processing so press in the circle of stranded conductor; Aluminium conductor particularly; Because the stranded circle of aluminium conductor is pressed all under hard state, carry out, add to guaranteeing that good electrical properties adopts higherly when pressing coefficient, more be prone to produce the fracture of wire phenomenon; And the gap behind the single wire fracture can be filled up by other distortion monofilament of this layer; Bring very big difficulty for the reparation fracture of wire, even can't repair, cause circle to press stranded processing and can't carry out or cause the too many waste of short section.
Summary of the invention
The purpose of this invention is to provide the circular impacted process of a kind of stranded aluminium conductor, the stranded aluminium conductor circle of electric wire that overcomes is in the past pressed the shortcoming that production method is prone to fracture of wire, is difficult for reparation.
The circular impacted process of a kind of stranded aluminium conductor is characterized in that: on same twisted wire layer, adopt the twice circle to press stretching die continuously, draw without any speed change between the twice stretching die.The processing technology thereof of this uniqueness innovation has been broken traditional multimode drawing process method: the circle of the common cable twist conductor mode of pressing all is that each twisted wire layer only uses one circle to press stretching die; Because according to the stretching principle; Must satisfy the principle that the forward and backward metal volume that stretches equates, drawing could normally be carried out, and promptly plain conductor is through after pressing stretching together; Because external diameter reduces length and must increase; In order to guarantee that plain conductor operates steadily, must one stretching die of every process all should have one than before the stretching die faster traction wheel draw, could realize that like this multimode stretches.And the present invention is: on same twisted wire layer, adopt the twice circle to press stretching die continuously; And do not draw between the twice mould through any speed change; Because pressing stretcher strain, the circle of the stranded aluminium conductor of electric wire concentrates on basically on the aluminium monofilament on top layer again; Length is slightly longer than internal layer aluminum steel because the cross section diminishes through the outer aluminium monofilament of the first road stretcher strain, so the top layer monofilament between the twice stretching die has slight pine burst phenomenon, reparation has brought convenience to fracture of wire.In addition, because be hard-drawn aluminium wire, outer aluminium monofilament is pine; Cause littler than unlined aluminium monofilament tension force; Can produce slight slippage between aluminium wire skin and the internal layer, so disappear through pine burst phenomenon behind the second road stretching die, the aluminium stranded conductor that comes out is the compacting pressing aluminium stranded conductor of tight rounding.
The present invention utilizes this " improper " process just; Through manufacturing experimently times without number and improving; Solve electric wire stranded conductor circle and pressed the difficult problem of disconnected monofilament reparation in the process; Because the second road stretching die has been shared some deflections, only adopt the deflection of one stretching die little relatively, simultaneously so be not easy fracture of wire again.
Further improvement as technology of the present invention; Increase a kind of lubricating process safely and effectively: press the continuous drop alcohol in stretching die orifice place at stranded conductor; Because alcohol is volatile free from corrosion liquid; Can play certain lubricated and cooling effect to pressing to stretch, and conductor and insulation are not worked the mischief.Owing to improved stretching condition, can reduce the incidence of single wire fracture.
Description of drawings
Fig. 1 is the circular impacted process stretching of a stranded aluminium conductor of the present invention sketch map;
Fig. 2 is common single mode stretching sketch map;
Fig. 3 is common multimode stretching sketch map;
1. the first road stretching die, the 2. second road stretching die, 3. unlined aluminium monofilament, 4. outer aluminium monofilament, 5. traction wheel.
Embodiment
Specify impacted process method stretching embodiment of the present invention below:
As shown in Figure 1, the preferred embodiment for the present invention is: the present invention is used in stranded aluminium conductor circle presses on the many aluminium monofilament twisted wire layers more than the six roots of sensation layer of processing, and drawing die 1 and 2 is hard metal stretching die or diamond coating stretching die.The first road stretching die, 1, the second road stretching die 2 is installed at the doubling mould place of stranding machine is installed in about 1.5 meters position from the first road stretching die 1.If the mounting distance of two moulds is too short, the inconvenient operation that fracture of wire is repaired, when single wire fracture took place, broken end had the possibility of running the second road stretching die 2, the installation site of oversize then wire twisting equipment not to allow also need not in addition.Main distortion is placed on the first road stretching die 1; The deflection of strict control second road stretching 2; If the deflection of the second road stretching die 2 is too big; Outer aluminium monofilament 4 can seriously be thrown likeness in form lantern shape, and along with twisted wire presses the carrying out of stretching, outer aluminium monofilament 4 is thrown and can more and more seriously be caused production to continue; If the deflection of the second road stretching die 2 is too little, outer aluminium monofilament 4 is loose strand, and is just the same with pressing stretching die (as shown in Figure 2) together with only, and the not loose thigh of top layer aluminium monofilament 4, and closely seamless between the aluminium monofilament can't be repaired fracture of wire and do not had an effect.Adopt medical single intravenous infusion device of having an intravenous drip, the alcohol of in transfusion bottle, packing into, alcohol drips continuously to pressing the stretching die porch through woven hose, and it is lubricated and cools off.
The broken string automatic stopping device of stranding machine should be intact, and timely automatic stopping when the aluminium monofilament fracture takes place drops between twice stretching die 1 and 2 broken end and do not exceed the second road stretching die 2.When the aluminium monofilament fracture takes place; Getting one crosses the aluminium monofilament that the first road stretching die 1 twines the identical number of turns and fracture along the hand of spiral of twisted wire with the identical or smaller aluminium monofilament band of twisted wire aluminium monofilament diameter and welds; Promptly press the method that stranded conductor fracture of wire general in the wires and cables industry is repaired, easily with the aluminium monofilament reparation in gap between screw.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.Those of ordinary skill for technical field under the present invention; Under the prerequisite that does not break away from the present invention's design, make some alternative or obvious modification that are equal to; And performance or purposes are identical, then should be regarded as belonging to the protection range that claims that the present invention submits to are confirmed.
Claims (1)
1. circular impacted process of stranded aluminium conductor; It is characterized in that: on same twisted wire layer, adopt the twice circle to press stretching die continuously; Draw without any speed change between the twice stretching die; The first road stretching die is installed at doubling mould place at stranding machine, and the second road stretching die is installed in the position from 1.5 meters of the first road stretching dies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010521808 CN101976601B (en) | 2010-10-27 | 2010-10-27 | Round compressing process of stranded aluminum conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010521808 CN101976601B (en) | 2010-10-27 | 2010-10-27 | Round compressing process of stranded aluminum conductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101976601A CN101976601A (en) | 2011-02-16 |
| CN101976601B true CN101976601B (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010521808 Active CN101976601B (en) | 2010-10-27 | 2010-10-27 | Round compressing process of stranded aluminum conductor |
Country Status (1)
| Country | Link |
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| CN (1) | CN101976601B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163478A (en) * | 2011-03-15 | 2011-08-24 | 安徽欣意电缆有限公司 | Pressing and stranding method for wire core of aluminum alloy conductor |
| CN102800437B (en) * | 2012-08-28 | 2014-09-10 | 四川明星电缆股份有限公司 | Aluminum or aluminum alloy conductor twisting and compressing process for cables |
| CN102890986A (en) * | 2012-09-14 | 2013-01-23 | 江苏南瑞银龙电缆有限公司 | Process for drawing copper core power cable conductor |
| CN103050187A (en) * | 2012-12-14 | 2013-04-17 | 海南威特电气集团有限公司 | Aluminum conductor compression device for manufacturing insulated cable |
| CN103400651B (en) * | 2013-07-22 | 2015-12-23 | 浙江凯萨特电缆有限公司 | A kind of automotive line conductor compacting technique |
| CN103400652A (en) * | 2013-07-22 | 2013-11-20 | 浙江凯萨特电缆有限公司 | Cooling and lubricating manner in manufacturing of aluminum alloy cable conductor |
| CN105280313B (en) * | 2015-09-07 | 2018-10-12 | 白银有色集团股份有限公司 | A kind of production method of big specification abnormity aluminium conductor wire core cable |
| CN108063018B (en) * | 2018-01-09 | 2023-12-26 | 济南瑞通铁路电务有限责任公司 | Splicing device and splicing process for twisting conductors of overhead insulated cable |
| CN113308920B (en) * | 2021-07-29 | 2021-09-21 | 徐州固特美新材料有限公司 | Aluminum-clad steel strand manufacturing, stranding and rolling all-in-one machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101002288A (en) * | 2004-06-17 | 2007-07-18 | 3M创新有限公司 | Cable and method of making the same |
| CN101271742A (en) * | 2008-04-18 | 2008-09-24 | 江苏中超电缆有限公司 | Compacted conducting wire and its production method and forming device |
| CN101295564A (en) * | 2008-06-19 | 2008-10-29 | 南京诺尔泰复合材料设备制造有限公司 | Production method and equipment for carbon fiber multi-use compound stranded wire |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5551887A (en) * | 1978-10-03 | 1980-04-15 | Tatsuta Densen Kk | Compression molding method of twisted wire |
| JPH0436912A (en) * | 1990-06-01 | 1992-02-06 | Hitachi Cable Ltd | Manufacture of special twisted wire |
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2010
- 2010-10-27 CN CN 201010521808 patent/CN101976601B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101002288A (en) * | 2004-06-17 | 2007-07-18 | 3M创新有限公司 | Cable and method of making the same |
| CN101271742A (en) * | 2008-04-18 | 2008-09-24 | 江苏中超电缆有限公司 | Compacted conducting wire and its production method and forming device |
| CN101295564A (en) * | 2008-06-19 | 2008-10-29 | 南京诺尔泰复合材料设备制造有限公司 | Production method and equipment for carbon fiber multi-use compound stranded wire |
Non-Patent Citations (2)
| Title |
|---|
| JP平4-36912A 1992.02.06 |
| JP昭55-51887A 1980.04.15 |
Also Published As
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| CN101976601A (en) | 2011-02-16 |
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