CN101976600A - Production process of paper-covered soft copper stranded wire - Google Patents
Production process of paper-covered soft copper stranded wire Download PDFInfo
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- CN101976600A CN101976600A CN 201010244735 CN201010244735A CN101976600A CN 101976600 A CN101976600 A CN 101976600A CN 201010244735 CN201010244735 CN 201010244735 CN 201010244735 A CN201010244735 A CN 201010244735A CN 101976600 A CN101976600 A CN 101976600A
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Abstract
The invention discloses a production process of a paper-covered soft copper stranded wire, which comprises a soft copper stranded wire manufacturing process, an insulated paper making process and a wire and paper combining process in turn, wherein the soft copper stranded wire manufacturing process comprises making a copper-silver alloy wire, making a core primary wire, making a core secondary wire and making a core wire in turn; after being made, the core wire is inserted to the inside of the insulated paper layer and is drawn back and forth for ensuring the smooth clearance fit between the core wire and the insulated paper layer; a liquid epoxy resin curing agent is poured into the gap between the core wire and the insulated paper layer along the core wire; after the liquid epoxy resin curing agent is cooled, a paper-covered soft copper stranded wire blank can be obtained; and the paper-covered soft copper stranded wire can be obtained by cleaning the blank. The production process can produce the paper-covered soft copper stranded wire with high electric conductivity and heat conductivity, high electrical insulation strength and high mechanical performance; and the production cost is low.
Description
Technical field
The present invention relates to a kind of production technology of annealed copper strand wire, relate in particular to a kind of production technology of paper bag annealed copper strand wire, specifically be applicable to the production of the paper bag annealed copper strand wire that oil-immersed type transformer and electric equipment internal connection line are used.
Background technology
The paper bag annealed copper strand wire is applicable to the internal connection line usefulness of all kinds of oil-immersed type transformers and electric equipment, as the insulator of transformer high-voltage side, switch connect lead-in wire and large and medium-sized transformer in, the low pressure wiring, therefore the paper bag annealed copper strand wire not only needs to have the favorable conductive heat conductivility, and need have the favorable mechanical performance, indeformable in the time of could guaranteeing to use, do not fracture, this has just proposed higher requirement to the production technology of paper bag annealed copper strand wire.
The Chinese patent Granted publication number is CN100361235C, Granted publication day is the preparation method that the patent of invention on January 9th, 2008 discloses a kind of ternary copper-alloy stranded conductor, contact wire, belong to the lead technology field, be used for improving the problem of twisted wire, contact wire production melting furnace furnace life and blank lumber recovery.Its special feature is, it is raw material with the ternary copper-alloy, and described ternary copper-alloy is formed by the raw material melting of following percent by weight: magnesium 0.10～0.50; Tin 0.10～0.4; Total impurities is not more than 0.30; Surplus is a copper; Above-mentioned ternary alloy three-partalloy is made twisted wire, contact wire through melting, insulation, casting bar, operation such as cold rolling.Though this invention can improve melting furnace furnace life and blank lumber recovery in alloy twisted wire, the contact wire production, the blank lumber recovery is near a hundred per cent, furnace life is brought up to more than three times, but the electrical and thermal conductivity performance of its product is relatively poor, and radiating effect is bad, and electric insulation intensity is weak, easily electric leakage, in addition, mechanical performance is also relatively poor, and yield strength is lower, frangibility during use.
Summary of the invention
The objective of the invention is to overcome that the electrical and thermal conductivity performance that exists in the prior art is relatively poor, electric insulation intensity is weak, relatively poor defective and the problem of mechanical performance, provide a kind of can produce electrical and thermal conductivity performance better, the production technology of the paper bag annealed copper strand wire of strong, the better mechanical property of electric insulation intensity.
For realizing above purpose, technical solution of the present invention is: a kind of production technology of paper bag annealed copper strand wire, this technology comprise annealed copper strand wire reparation technology, insulating paper layer reparation technology and line paper combined process successively;
Described annealed copper strand wire reparation technology comprises successively: the producing of the producing of Kufil gold thread, inner core main line, producing of inner core by-pass and producing of inner core lead;
Described insulating paper layer reparation technology comprises: select the manufactured materials of epoxy resin as insulating paper layer earlier, then the epoxy resin of choosing is heated, again melted epoxide resin is injected the mfg. moulding die of insulating paper layer, untie the insulating paper layer that mould can obtain inner hollow after the cooling, the inner surface of this insulating paper layer is provided with network-like filling shrinkage pool;
Described line paper combined process comprises: earlier the inner core lead of producing is passed through the inside of the insulating paper layer of packing into, twitch the inner core lead more back and forth to guarantee the without hindrance matched in clearance between inner core lead and the insulating paper layer, then the epoxy curing agent of liquid state is poured into slit between inner core lead and the insulating paper layer along the inner core lead, rotate inner core lead or insulating paper layer simultaneously, overflow the two ends of insulating paper layer until epoxy curing agent, pour into EO, treat to obtain paper bag annealed copper strand wire blank after the epoxy curing agent cooling, paper bag annealed copper strand wire blank is polished, can obtain the paper bag annealed copper strand wire behind the cleaning operations such as deburring.
Producing of described Kufil gold thread is meant: in proportion copper, silver are put into vacuum furnace earlier and heat, heating-up temperature is 1120-1160 ℃, form the Kufil blank behind the crystallisation by cooling, again the Kufil blank is added in the intermediate frequency furnace and heat, heating-up temperature is 1100-1120 ℃, take the method for continuous up-casting to make Kufil bar base to the Kufil liquation after the fusing then, it is rolling again Kufil bar base to be carried out multi-pass, then the Kufil bar after rolling is placed and carry out the multi-pass wire drawing on the wire drawing machine, can make the Kufil gold thread after the wire drawing.
Heating-up temperature in the described vacuum furnace is 1140 ℃, and the heating-up temperature in the described intermediate frequency furnace is 1110 ℃.
Producing of described inner core main line is meant: choose at least two Kufil gold threads earlier and carry out stranded, again the Kufil gold thread after stranded is put into mould, the circuit that then copper, silver-colored liquation is injected together Kufil gold thread outer periphery is to form copper silver fused layer, in the circuit of copper silver fused layer outer periphery, inject silver, aluminum melt again after copper, the cooling of silver-colored liquation, promptly form silver-colored aluminium conductive layer after silver, the aluminum melt cooling, can obtain the inner core main line after untiing mould and removing surface.
Producing of described inner core by-pass is meant: choose at least two Kufil gold threads earlier and carry out stranded, again the Kufil gold thread after stranded is put into mould, the circuit that then copper, silver-colored liquation is injected together Kufil gold thread outer periphery is to form copper silver fused layer, in the circuit of copper silver fused layer outer periphery, inject silver, aluminum melt again after copper, the cooling of silver-colored liquation, promptly form silver-colored aluminium conductive layer after silver, the aluminum melt cooling, can obtain the inner core by-pass after untiing mould and removing surface.
Producing of described inner core lead is meant: choose an inner core main line and at least two inner core by-passes earlier, inner core main line, inner core by-pass are carried out can obtaining the inner core lead after stranded again.
The quantity of the described inner core by-pass of choosing is four.
Compared with prior art, beneficial effect of the present invention is:
1. because the inner core lead of being produced in the production technology of a kind of paper bag annealed copper strand wire of the present invention comprises inner core main line and inner core by-pass, and inner core main line and inner core by-pass successively constitute from inside to outside by Kufil gold thread, copper silver fused layer and silver-colored aluminium conductive layer, wherein the Kufil gold thread has two at least, and stranded each other connection, this kind design can guarantee that the inner core lead that the present invention produces not only has good electrical conductivity, and has a good thermal conductivity, in addition, as main raw material(s), saved production cost with copper.Therefore the present invention can produce the paper bag annealed copper strand wire with good conductive thermal conductivity, and production cost is lower.
2. owing to the inner core main line of being produced in the production technology of a kind of paper bag annealed copper strand wire of the present invention, the Kufil gold thread that inner core by-pass inside includes stranded connection, and between inner core main line and the inner core by-pass by the stranded inner core lead that connects and composes, and between inner core lead and insulating paper layer the filling epoxy resin curing agent, thereby make of the present inventionly produce product and not only have the favorable mechanical performance, the intensity of toughness, and electric insulation preferably is stronger.Therefore the present invention can produce better mechanical property, paper bag annealed copper strand wire that electric insulation intensity is stronger.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the inner surface structure schematic diagram of insulating paper layer among Fig. 1.
Among the figure: Kufil gold thread 1, inner core main line 2, inner core by-pass 3, inner core lead 4, insulating paper layer 5 is filled shrinkage pool 51, copper silver fused layer 6, silver-colored aluminium conductive layer 7.
Embodiment
The present invention is further detailed explanation below in conjunction with description of drawings and embodiment
Referring to Fig. 1-Fig. 2, a kind of production technology of paper bag annealed copper strand wire, this technology comprise annealed copper strand wire reparation technology, insulating paper layer reparation technology and line paper combined process successively;
Described annealed copper strand wire reparation technology comprises successively: the producing of the producing of Kufil gold thread 1, inner core main line 2, producing of inner core by-pass 3 and producing of inner core lead 4;
Described insulating paper layer 5 reparation technologies comprise: select the manufactured materials of epoxy resin as insulating paper layer 5 earlier, then the epoxy resin of choosing is heated, again melted epoxide resin is injected the mfg. moulding die of insulating paper layer 5, untie the insulating paper layer 5 that mould can obtain inner hollow after the cooling, the inner surface of this insulating paper layer 5 is provided with network-like filling shrinkage pool 51;
Described line paper combined process comprises: earlier the inner core lead of producing 4 is passed through the inside of the insulating paper layer 5 of packing into, twitch inner core lead 4 more back and forth to guarantee the without hindrance matched in clearance between inner core lead 4 and the insulating paper layer 5, then the epoxy curing agent of liquid state is poured into slit between inner core lead 4 and the insulating paper layer 5 along inner core lead 4, rotate inner core lead 4 or insulating paper layer 5 simultaneously, overflow the two ends of insulating paper layer 5 until epoxy curing agent, pour into EO, treat to obtain paper bag annealed copper strand wire blank after the epoxy curing agent cooling, paper bag annealed copper strand wire blank is polished, can obtain the paper bag annealed copper strand wire behind the cleaning operations such as deburring.
Producing of described Kufil gold thread 1 is meant: in proportion copper, silver are put into vacuum furnace earlier and heat, heating-up temperature is 1120-1160 ℃, form the Kufil blank behind the crystallisation by cooling, again the Kufil blank is added in the intermediate frequency furnace and heat, heating-up temperature is 1100-1120 ℃, take the method for continuous up-casting to make Kufil bar base to the Kufil liquation after the fusing then, it is rolling again Kufil bar base to be carried out multi-pass, then the Kufil bar after rolling is placed and carry out the multi-pass wire drawing on the wire drawing machine, can make Kufil gold thread 1 after the wire drawing.
Heating-up temperature in the described vacuum furnace is 1140 ℃, and the heating-up temperature in the described intermediate frequency furnace is 1110 ℃.
Producing of described inner core main line 2 is meant: choose at least two Kufil gold threads 1 earlier and carry out stranded, again the Kufil gold thread 1 after stranded is put into mould, the circuit that then copper, silver-colored liquation is injected together Kufil gold thread 1 outer periphery is to form copper silver fused layer 6, in the circuit of copper silver fused layer 6 outer periphery, inject silver, aluminum melt again after copper, the cooling of silver-colored liquation, promptly form silver-colored aluminium conductive layer 7 after silver, the aluminum melt cooling, can obtain inner core main line 2 after untiing mould and removing surface.
Producing of described inner core by-pass 3 is meant: choose at least two Kufil gold threads 1 earlier and carry out stranded, again the Kufil gold thread 1 after stranded is put into mould, the circuit that then copper, silver-colored liquation is injected together Kufil gold thread 1 outer periphery is to form copper silver fused layer 6, in the circuit of copper silver fused layer 6 outer periphery, inject silver, aluminum melt again after copper, the cooling of silver-colored liquation, promptly form silver-colored aluminium conductive layer 7 after silver, the aluminum melt cooling, can obtain inner core by-pass 3 after untiing mould and removing surface.
Producing of described inner core lead 4 is meant: choose an inner core main line 2 and at least two inner core by-passes 3 earlier, inner core main line 2, inner core by-pass 3 are carried out can obtaining inner core lead 4 after stranded again.
The quantity of the described inner core by-pass of choosing 3 is four.
Embodiment 1:
A kind of production technology of paper bag annealed copper strand wire, this technology comprise annealed copper strand wire reparation technology, insulating paper layer reparation technology and line paper combined process successively;
Described annealed copper strand wire reparation technology comprises successively: the producing of the producing of Kufil gold thread 1, inner core main line 2, producing of inner core by-pass 3 and producing of inner core lead 4;
Producing of described Kufil gold thread 1 is meant: in proportion copper, silver are put into vacuum furnace earlier and heat, heating-up temperature is 1140 ℃, form the Kufil blank behind the crystallisation by cooling, again the Kufil blank is added in the intermediate frequency furnace and heat, heating-up temperature is 1110 ℃, take the method for continuous up-casting to make Kufil bar base to the Kufil liquation after the fusing then, it is rolling again Kufil bar base to be carried out multi-pass, then the Kufil bar after rolling is placed and carry out the multi-pass wire drawing on the wire drawing machine, can make Kufil gold thread 1 after the wire drawing;
Producing of described inner core main line 2 is meant: choose two Kufil gold threads 1 earlier and carry out stranded, again the Kufil gold thread 1 after stranded is put into mould, the circuit that then copper, silver-colored liquation is injected together Kufil gold thread 1 outer periphery is to form copper silver fused layer 6, in the circuit of copper silver fused layer 6 outer periphery, inject silver, aluminum melt again after copper, the cooling of silver-colored liquation, promptly form silver-colored aluminium conductive layer 7 after silver, the aluminum melt cooling, can obtain inner core main line 2 after untiing mould and removing surface;
Producing of described inner core by-pass 3 is meant: choose two Kufil gold threads 1 earlier and carry out stranded, again the Kufil gold thread 1 after stranded is put into mould, the circuit that then copper, silver-colored liquation is injected together Kufil gold thread 1 outer periphery is to form copper silver fused layer 6, in the circuit of copper silver fused layer 6 outer periphery, inject silver, aluminum melt again after copper, the cooling of silver-colored liquation, promptly form silver-colored aluminium conductive layer 7 after silver, the aluminum melt cooling, can obtain inner core by-pass 3 after untiing mould and removing surface;
Producing of described inner core lead 4 is meant: choose an inner core main line 2 and four inner core by-passes 3 earlier, inner core main line 2 and inner core by-pass 3 are carried out can obtaining inner core lead 4 after stranded again;
Described insulating paper layer 5 reparation technologies comprise: select the manufactured materials of epoxy resin as insulating paper layer 5 earlier, then the epoxy resin of choosing is heated, again melted epoxide resin is injected the mfg. moulding die of insulating paper layer 5, untie the insulating paper layer 5 that mould can obtain inner hollow after the cooling, the inner surface of this insulating paper layer 5 is provided with network-like filling shrinkage pool 51;
Described line paper combined process comprises: earlier the inner core lead of producing 4 is passed through the inside of the insulating paper layer 5 of packing into, twitch inner core lead 4 more back and forth to guarantee the without hindrance matched in clearance between inner core lead 4 and the insulating paper layer 5, then the epoxy curing agent of liquid state is poured into slit between inner core lead 4 and the insulating paper layer 5 along inner core lead 4, rotate inner core lead 4 or insulating paper layer 5 simultaneously, overflow the two ends of insulating paper layer 5 until epoxy curing agent, pour into EO, treat to obtain paper bag annealed copper strand wire blank after the epoxy curing agent cooling, paper bag annealed copper strand wire blank is polished, can obtain the paper bag annealed copper strand wire behind the cleaning operations such as deburring.
This product is because of having special-purpose advanced production equipment and strict process requirement, all can reach the regulation requirement of smooth, intersection, scrap (bridge) to wrapped insulation, and wrapped back is crooked 180 degree on the pole in 15 times of line footpaths, free from flaw, opening on the paper, break, phenomenon such as scar, core bag paper gap is 0.5-2mm, no wrinkle and local projection on the paper.
Therefore, the present invention not only can produce have the good conductive heat conductivility, electric insulation intensity is strong, the paper bag annealed copper strand wire of better mechanical property, and production cost is lower.
The above only is a better embodiment of the present invention; protection scope of the present invention is not exceeded with above-mentioned execution mode; as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (7)
1. the production technology of a paper bag annealed copper strand wire comprises annealed copper strand wire reparation technology, insulating paper layer reparation technology and line paper combined process successively, it is characterized in that:
Described annealed copper strand wire reparation technology comprises successively: the producing of the producing of Kufil gold thread (1), inner core main line (2), producing of inner core by-pass (3) and producing of inner core lead (4);
Described insulating paper layer (5) reparation technology comprises: select the manufactured materials of epoxy resin as insulating paper layer (5) earlier, then the epoxy resin of choosing is heated, again melted epoxide resin is injected the mfg. moulding die of insulating paper layer (5), untie the insulating paper layer (5) that mould can obtain inner hollow after the cooling, the inner surface of this insulating paper layer (5) is provided with network-like filling shrinkage pool (51);
Described line paper combined process comprises: the inside of earlier the inner core lead of producing (4) being passed through the insulating paper layer of packing into (5), twitch inner core lead (4) more back and forth to guarantee the without hindrance matched in clearance between inner core lead (4) and the insulating paper layer (5), then the epoxy curing agent of liquid state is poured into slit between inner core lead (4) and the insulating paper layer (5) along inner core lead (4), rotate inner core lead (4) or insulating paper layer (5) simultaneously, overflow the two ends of insulating paper layer (5) until epoxy curing agent, pour into EO, treat to obtain paper bag annealed copper strand wire blank after the epoxy curing agent cooling, paper bag annealed copper strand wire blank is polished, can obtain the paper bag annealed copper strand wire behind the cleaning operations such as deburring.
2. the production technology of a kind of paper bag annealed copper strand wire according to claim 1, it is characterized in that: producing of described Kufil gold thread (1) is meant: earlier in proportion with copper, silver is put into vacuum furnace and is heated, heating-up temperature is 1120-1160 ℃, form the Kufil blank behind the crystallisation by cooling, again the Kufil blank is added in the intermediate frequency furnace and heat, heating-up temperature is 1100-1120 ℃, take the method for continuous up-casting to make Kufil bar base to the Kufil liquation after the fusing then, it is rolling again Kufil bar base to be carried out multi-pass, then the Kufil bar after rolling is placed and carry out the multi-pass wire drawing on the wire drawing machine, can make Kufil gold thread (1) after the wire drawing.
3. the production technology of a kind of paper bag annealed copper strand wire according to claim 2 is characterized in that: the heating-up temperature in the described vacuum furnace is 1140 ℃, and the heating-up temperature in the described intermediate frequency furnace is 1110 ℃.
4. according to claim 1, the production technology of 2 or 3 described a kind of paper bag annealed copper strand wires, it is characterized in that: producing of described inner core main line (2) is meant: choose at least two Kufil gold threads (1) earlier and carry out stranded, again the Kufil gold thread (1) after stranded is put into mould, then with copper, the silver liquation injects the circuit of Kufil gold thread (1) outer periphery together to form copper silver fused layer (6), copper, in the circuit of copper silver fused layer (6) outer periphery, inject silver again after the cooling of silver liquation, aluminum melt, silver, promptly form silver-colored aluminium conductive layer (7) after the aluminum melt cooling, can obtain inner core main line (2) after untiing mould and removing surface.
5. the production technology of a kind of paper bag annealed copper strand wire according to claim 4, it is characterized in that: producing of described inner core by-pass (3) is meant: choose at least two Kufil gold threads (1) earlier and carry out stranded, again the Kufil gold thread (1) after stranded is put into mould, then with copper, the silver liquation injects the circuit of Kufil gold thread (1) outer periphery together to form copper silver fused layer (6), copper, in the circuit of copper silver fused layer (6) outer periphery, inject silver again after the cooling of silver liquation, aluminum melt, silver, promptly form silver-colored aluminium conductive layer (7) after the aluminum melt cooling, can obtain inner core by-pass (3) after untiing mould and removing surface.
6. the production technology of a kind of paper bag annealed copper strand wire according to claim 5, it is characterized in that: producing of described inner core lead (4) is meant: choose an inner core main line (2) and at least two inner core by-passes (3) earlier, inner core main line (2), inner core by-pass (3) are carried out can obtaining inner core lead (4) after stranded again.
7. the production technology of a kind of paper bag annealed copper strand wire according to claim 6 is characterized in that: the quantity of the described inner core by-pass of choosing (3) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102447350A CN101976600B (en) | 2010-08-04 | 2010-08-04 | Production process of paper-covered soft copper stranded wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102447350A CN101976600B (en) | 2010-08-04 | 2010-08-04 | Production process of paper-covered soft copper stranded wire |
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| Publication Number | Publication Date |
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| CN101976600A true CN101976600A (en) | 2011-02-16 |
| CN101976600B CN101976600B (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102447350A Expired - Fee Related CN101976600B (en) | 2010-08-04 | 2010-08-04 | Production process of paper-covered soft copper stranded wire |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971774A (en) * | 2017-05-25 | 2017-07-21 | 江苏鑫海铜业有限公司 | A kind of Combined paper-covered flexible copper stranded conductor |
| CN108735393A (en) * | 2018-06-11 | 2018-11-02 | 临沂启阳电缆有限公司 | A kind of environment-friendly cable production method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60264006A (en) * | 1984-06-12 | 1985-12-27 | 株式会社フジクラ | Paper winding pad for insulating of cable |
| CN101183572A (en) * | 2007-11-19 | 2008-05-21 | 李明斌 | Shielded cable manufacturing method for engineering equipment |
| CN100421188C (en) * | 2006-08-02 | 2008-09-24 | 中利科技集团股份有限公司 | Wiring device for internal screening longitudinal coating machine |
| CN201359860Y (en) * | 2009-02-16 | 2009-12-09 | 无锡环宇电磁线有限公司 | Paper covered copper-silver alloy composite conductor |
-
2010
- 2010-08-04 CN CN2010102447350A patent/CN101976600B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60264006A (en) * | 1984-06-12 | 1985-12-27 | 株式会社フジクラ | Paper winding pad for insulating of cable |
| CN100421188C (en) * | 2006-08-02 | 2008-09-24 | 中利科技集团股份有限公司 | Wiring device for internal screening longitudinal coating machine |
| CN101183572A (en) * | 2007-11-19 | 2008-05-21 | 李明斌 | Shielded cable manufacturing method for engineering equipment |
| CN201359860Y (en) * | 2009-02-16 | 2009-12-09 | 无锡环宇电磁线有限公司 | Paper covered copper-silver alloy composite conductor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971774A (en) * | 2017-05-25 | 2017-07-21 | 江苏鑫海铜业有限公司 | A kind of Combined paper-covered flexible copper stranded conductor |
| CN108735393A (en) * | 2018-06-11 | 2018-11-02 | 临沂启阳电缆有限公司 | A kind of environment-friendly cable production method |
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| Publication number | Publication date |
|---|---|
| CN101976600B (en) | 2012-07-11 |
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