CN104143396A - Method for stranding cross-linked polyethylene insulation power cable conducting wire core - Google Patents
Method for stranding cross-linked polyethylene insulation power cable conducting wire core Download PDFInfo
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- CN104143396A CN104143396A CN201410327153.7A CN201410327153A CN104143396A CN 104143396 A CN104143396 A CN 104143396A CN 201410327153 A CN201410327153 A CN 201410327153A CN 104143396 A CN104143396 A CN 104143396A
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Abstract
The invention relates to a method for stranding a cross-linked polyethylene insulation power cable conducing wire core. Through the processes of wire drawing, annealing, stranding, compressing and the like, a mold with a water circulation cooling system is used for conducting cooling processing in the stranding processing process; in the stranding process, the stranding method that the mold is used for assisting layered compressing is used; the stranding directions in the stranding process are that the stranding direction of a last stranding layer and the stranding direction of a last but one stranding layer are the same, and the stranding direction of stranding layers except for the last but one stranding layer and the last stranding layer is opposite to the stranding direction of the last stranding layer. Cross-linked polyethylene insulation powder cable conducting wires prepared by the method have the advantages of being even in stranding, high in reliability, long in service life and the like. Predictable huge economical value and social value are achieved.
Description
Technical field
The present invention relates to power cable preparing technical field, provide especially a kind of power cable with cross-linked polyethylene insulation conductor wire core strand method processed.
Background technology
In prior art, power cable conductor wire core strand method processed is varied, but difference according to requirements also needs to develop new related manufacturing process, people urgently wish to obtain a kind of good power cable with cross-linked polyethylene insulation conductor wire core strand method processed of technique effect.
Summary of the invention
The object of this invention is to provide a kind of good power cable with cross-linked polyethylene insulation conductor wire core strand method processed of technique effect.
Power cable with cross-linked polyethylene insulation conductor wire core strand method processed, through wire drawing, annealing, stranded, the operation such as press, twist use in the course of processing processed and carries out cooling processing with the mould of hydrologic cycle cooling system; In strand process processed, use mould to assist and carry out the strand method processed that layering is pressed; Direction of lay in strand process processed: last one deck stranded layer is identical with the direction of lay of layer stranded layer second from the bottom, the stranded layer except layer stranded layer second from the bottom and last one deck stranded layer, its direction of lay is contrary with the direction of lay of last one deck stranded layer.
The strand method processed that further described layering is pressed is to adopt the circular pressing roller mold of multiple tracks to carry out multiple tracks pressure roller to press processing.
Further describedly through last circular pressing roller mold together, carry out after pressure roller presses, then through nanocrystalline diamond composite coating, press circular die and press.
It is 0.4～1.4m that further described nanocrystalline diamond composite coating presses the last distance of circular pressing roller mold together of circular die distance.
Further described power cable with cross-linked polyethylene insulation conductor wire core twists method processed, the strand method processed that adopts layering to press is twisted system operation to conductor wire core after, also carries out following processing:
The PE ambroin of sneaking into crosslinking agent di-sec-octyl phthalate DCP, under high temperature, high pressure N2 effect, it is crosslinked polyethylene XLPE that the PE of linear structure is become to cancellated PE.
The outstanding features such as the power cable with cross-linked polyethylene insulation conduction twisted wire strand system that the present invention prepares is even, and reliability is high, long service life.It has expected comparatively huge economic worth and social value.
Embodiment
A power cable with cross-linked polyethylene insulation conductor wire core strand method processed, through wire drawing, annealing, stranded, the operation such as press, the strand system of use is as follows by the preparation process of raw material and raw material core:
Power cable with cross-linked polyethylene insulation core preparation method, it adopts wire-drawing processing method to prepare described power cable with cross-linked polyethylene insulation core, and concrete preparation process meets following requirement: raw material selection φ 9.5 ± 0.2mm round aluminum rod; Copper bar is specially A8 type, 20 ℃ of resistivity≤0.02801 Ω .mm2/m of copper bar; Elongation at break >=6%; Drawing lubricant: 60% butter+40% machine oil mixing; The concrete continuous wire drawing method of using is prepared described power cable with cross-linked polyethylene insulation core, and wire-drawing temperature is 300-40 ℃; After wire drawing, carry out resistance-type continuous annealing processing, the cooling fluid of annealing use is 0.5-1.0% suds, circulation-supplied.
The described 6-35kV power cable with cross-linked polyethylene insulation core preparing is the firmly round aluminum steel of LY4 type electrician, and it meets following requirement: 20 ℃ of resistivity≤0.028264 Ω mm2/m; Tensile strength 100-130N/mm2; Its operative norm is GB/T 12706.2-2002; GB/T11017.1-2002.
The strand method processed that described power cable with cross-linked polyethylene insulation conductor wire core strand method processed adopts layering to press, strand system, is used mould with hydrologic cycle cooling system to carry out using in cooling processing strand process processed that mould is auxiliary carries out the strand method processed that layering is pressed in the course of processing; Direction of lay in strand process processed: last one deck stranded layer is identical with second from the bottom layer of stranded direction of lay, the stranded layer except layer stranded layer second from the bottom and last one deck stranded layer, its direction of lay is contrary with the direction of lay of last one deck stranded layer.
The strand method processed that described layering is pressed is to adopt the circular pressing roller mold of multiple tracks to carry out multiple tracks pressure roller to press processing.
Describedly through last circular pressing roller mold together, carry out after pressure roller presses, then through nanocrystalline diamond composite coating, press circular die and press.It is 0.4～1.4m that described nanocrystalline diamond composite coating presses the last distance of circular pressing roller mold together of circular die distance.
Described power cable with cross-linked polyethylene insulation conductor wire core strand method processed, the strand method processed that adopts layering to press is twisted system operation to conductor wire core after, also carry out following processing:
The PE ambroin of sneaking into crosslinking agent di-sec-octyl phthalate DCP, under high temperature, high pressure N2 effect, it is crosslinked polyethylene XLPE that the PE of linear structure is become to cancellated PE, thereby improves the serviceability of cable.
Aforesaid operations can be specifically internal shield or outer shielding layer construction, interior screen: extrude semi-conductive screen plastics (conductor screen) on conductor; Outer screen: extrude semi-conductive screen plastics (insulation shielding) in insulation appearance.
Claims (5)
1. power cable with cross-linked polyethylene insulation conductor wire core strand method processed, through wire drawing, annealing, stranded, the operation such as press, it is characterized in that: twist use in the course of processing processed and carry out cooling processing with the mould of hydrologic cycle cooling system; In strand process processed, use mould to assist and carry out the strand method processed that layering is pressed; Direction of lay in strand process processed: last one deck stranded layer is identical with the direction of lay of layer stranded layer second from the bottom, the stranded layer except layer stranded layer second from the bottom and last one deck stranded layer, its direction of lay is contrary with the direction of lay of last one deck stranded layer.
2. according to power cable with cross-linked polyethylene insulation conductor wire core strand method processed described in claim 1, it is characterized in that: the strand method processed that described layering is pressed is to adopt the circular pressing roller mold of multiple tracks to carry out multiple tracks pressure roller to press processing.
3. according to power cable with cross-linked polyethylene insulation conductor wire core strand method processed described in claim 2, it is characterized in that: through last circular pressing roller mold together, carry out after pressure roller presses, then through nanocrystalline diamond composite coating, press circular die and press.
4. according to power cable with cross-linked polyethylene insulation conductor wire core strand method processed described in claim 3, it is characterized in that: it is 0.4～1.4m that described nanocrystalline diamond composite coating presses the last distance of circular pressing roller mold together of circular die distance.
5. according to power cable with cross-linked polyethylene insulation conductor wire core strand method processed described in claim 1, it is characterized in that: described power cable with cross-linked polyethylene insulation conductor wire core strand method processed, the strand method processed that adopts layering to press is twisted system operation to conductor wire core after, also carry out following processing:
The PE ambroin of sneaking into crosslinking agent di-sec-octyl phthalate DCP, under high temperature, high pressure N2 effect, it is crosslinked polyethylene XLPE that the PE of linear structure is become to cancellated PE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410327153.7A CN104143396A (en) | 2014-07-10 | 2014-07-10 | Method for stranding cross-linked polyethylene insulation power cable conducting wire core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410327153.7A CN104143396A (en) | 2014-07-10 | 2014-07-10 | Method for stranding cross-linked polyethylene insulation power cable conducting wire core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104143396A true CN104143396A (en) | 2014-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410327153.7A Withdrawn CN104143396A (en) | 2014-07-10 | 2014-07-10 | Method for stranding cross-linked polyethylene insulation power cable conducting wire core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336446A (en) * | 2015-12-02 | 2016-02-17 | 宁夏瑞银有色金属科技有限公司 | Annealing device used for cable wire and annealing method thereof |
Citations (5)
| 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 |
| CN102280212A (en) * | 2011-05-23 | 2011-12-14 | 江苏港通电缆有限公司 | Water-cooled stranding device used in cable-conductive-core strand production |
| CN102800437A (en) * | 2012-08-28 | 2012-11-28 | 四川明星电缆股份有限公司 | Aluminum or aluminum alloy conductor twisting and compressing process for cables |
| CN102969089A (en) * | 2012-11-14 | 2013-03-13 | 国家电网公司 | Stranding method of cross-linked polyethylene insulation power cable conducting wire core |
| CN102969091A (en) * | 2012-11-14 | 2013-03-13 | 国家电网公司 | Shielding treatment method for insulated wire core of crosslinked polyethylene insulated power cable |
-
2014
- 2014-07-10 CN CN201410327153.7A patent/CN104143396A/en not_active Withdrawn
Patent Citations (5)
| 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 |
| CN102280212A (en) * | 2011-05-23 | 2011-12-14 | 江苏港通电缆有限公司 | Water-cooled stranding device used in cable-conductive-core strand production |
| CN102800437A (en) * | 2012-08-28 | 2012-11-28 | 四川明星电缆股份有限公司 | Aluminum or aluminum alloy conductor twisting and compressing process for cables |
| CN102969089A (en) * | 2012-11-14 | 2013-03-13 | 国家电网公司 | Stranding method of cross-linked polyethylene insulation power cable conducting wire core |
| CN102969091A (en) * | 2012-11-14 | 2013-03-13 | 国家电网公司 | Shielding treatment method for insulated wire core of crosslinked polyethylene insulated power cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336446A (en) * | 2015-12-02 | 2016-02-17 | 宁夏瑞银有色金属科技有限公司 | Annealing device used for cable wire and annealing method thereof |
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Application publication date: 20141112 |