CN102332345B - Manufacturing method for prefabricated branch flexible cable - Google Patents
Manufacturing method for prefabricated branch flexible cable Download PDFInfo
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- CN102332345B CN102332345B CN 201110230258 CN201110230258A CN102332345B CN 102332345 B CN102332345 B CN 102332345B CN 201110230258 CN201110230258 CN 201110230258 CN 201110230258 A CN201110230258 A CN 201110230258A CN 102332345 B CN102332345 B CN 102332345B
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- Prior art keywords
- branch
- insulating barrier
- connector
- trunk
- cable conductor
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 36
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 26
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000004888 barrier function Effects 0.000 claims description 59
- 229920002379 silicone rubber Polymers 0.000 claims description 18
- 239000003063 flame retardant Substances 0.000 claims description 12
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 12
- -1 phenyl flame retardant Chemical compound 0.000 claims description 12
- 238000001746 injection moulding Methods 0.000 claims description 10
- 238000002788 crimping Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000013040 rubber vulcanization Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 238000009413 insulation Methods 0.000 description 8
- 230000007774 longterm Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Abstract
The invention discloses a manufacturing method for a prefabricated branch flexible cable. A main insulating layer, a main outer sheath, a branch insulating layer and a branch outer sheath are sequentially arranged outside a main cable conductor and a branch cable conductor respectively; talcum powder with an isolating agent is coated and scattered and a main non-woven fabric is lapped between the main insulating layer and the main outer sheath; the talcum powder with the isolating agent is coated and scattered and a branch non-woven fabric is lapped between the branch insulating layer and the branch outer sheath; the main insulating layer, the main outer sheath, the branch insulating layer and the branch outer sheath are stripped off at the junction of the main cable conductor and the branch cable conductor respectively; the main cable conductor and the branch cable conductor are compressed by selecting and using an automatic hydraulic machine with a C-shaped clamp having a convex ridge; after compression is finished, a proper mould is selected and used for performing mould pressing injection of a connector insulating layer; the connector insulating layer is lapped by non-woven fabric after being formed to form a non-woven fabric lapping layer; a connector outer protection layer is performed outside the non-woven fabric lapping layer through mould pressing injection; and the connector insulating layer and the connector outer protection layer together form a branch cable connector.
Description
Technical field
The present invention relates to a kind of cable manufacture method, refer in particular to a kind of manufacturing method for prefabricated branch flexible cable.
Background technology
Paying branch cable in advance refers to become complete continuous cable assembly by prefabrication, in main cable regulation position and requirement thereof, with the conductor of main cable and branch cable, connect by copper or copper alloy tube compression, and carry out complete insulation processing (JB/T10636-2006).Branch cable structure mainly is divided into two kinds, and a kind of is single core prefabricated branch cable, and another kind is Multi-core prefabricated branch cable, and extensively applicable skyscraper, large-scale standardization factory building, comprehensive culture and education body are defended facility, highway, bridge and tunnel for they.Branch cable is made the main reference standard at present Japanese electric wire industry meeting standard JCS 376A-2002 " band branch cable ", JCS427-2000 " 600v environment-friendly type band branch cable ", JG/T 147-2002 " rated voltage 0.6/1kV copper core plastic insulation prefabricated branch power cable " and JB/T 10636-2006 " rated voltage 0.6/1kV (Um=1.2kV) copper core plastic insulation prefabricated branch cable ".The main cable of above standard code and the insulation of branch cable are polyvinyl chloride insulation and crosslinked polyetylene insulated, sheath material is essentially pvc sheath, polyolefin jacket, and has substantially all stipulated immersion voltage test or sparking test and the insulation resistance test of branch's connector of finished product branch cable.Polyvinyl chloride is thermoplastic, its working temperature is essentially 65 or 70 ℃, and very easily suction, suction can cause polyvinyl chloride insulation resistance sharply to reduce, and crosslinked polyethylene is as thermosets, and its working temperature increases, but also only is 90 ℃, the insulation of main cable and branch cable certainly exists the interface in the connector, is unwell to long-term immersion, buried or high moist environment use.Obviously.For the operational environment or the long-term wet environment that surpass 100 ℃, no matter existing branch cable is immersion withstand voltage test or megger test all seems unable to do what one wishes or at all helpless.
Summary of the invention
The object of the present invention is to provide a kind of manufacturing method for prefabricated branch flexible cable, by the product high temperature of anti-high humidity that this method is produced, be applicable to surpass 100 ℃ fully but the operational environment or the long-term wet environment that are lower than 250 ℃.
For achieving the above object, the solution that the present invention takes is: a kind of manufacturing method for prefabricated branch flexible cable, prefabricated branch flexible cable comprises dried cable conductor and branch cable conductor, main cable conductor and branch cable conductor are followed successively by respectively the trunk insulating barrier outward, trunk oversheath and branch's insulating barrier, branch's oversheath, be coated with the talcum powder and the wrapped trunk nonwoven fabrics that spread with interleaving agent between trunk insulating barrier and the trunk oversheath, be coated with the talcum powder and the wrapped branch nonwoven fabrics that spread with interleaving agent between branch's insulating barrier and the branch's oversheath, main cable conductor and branch cable conductor connection are peeled off respectively the trunk insulating barrier, trunk oversheath and branch's insulating barrier, branch's oversheath, select the automatic hydraulic press utilization with the C type of convex ridge folder main cable conductor and branch cable conductor to be carried out crimping, after crimping is complete, select suitable mould to carry out the mold pressing injection moulding of connector insulating barrier, wrapped nonwoven fabrics after the moulding of connector insulating barrier, form the nonwoven fabrics lapping layer, mold pressing injection moulding connector outer jacket again outside the nonwoven fabrics lapping layer, connector insulating barrier and connector outer jacket consist of the branch cable connector jointly; Trunk insulating barrier, trunk oversheath, branch's insulating barrier, branch's oversheath, connector insulating barrier, connector outer sheath material all adopt the two phenyl flame retardant type silicon rubber of methyl, and its working temperature is up to 250 ℃ behind the two phenyl flame retardant type silicon rubber vulcanizations of methyl; Before the connector insulating barrier mold pressing injection moulding; guarantee that connector insulating barrier and trunk insulating barrier and branch's insulating barrier do not vulcanize the formation interface; the curing temperature that scene temperature is lower than the two phenyl flame retardant type silicon rubber of methyl is made in simultaneously control; on the other hand; guaranteeing under the prerequisite of mechanical performance; vulcanizing agent and accelerator dosage in the two phenyl flame retardant type silicon rubber of strict control methyl prolong cure time as far as possible.
The anti-high humidity high temperature silicon rubber prefabricated branch flexible cable that is made by this method is applicable to be no more than 250 ℃ operational environment or long-term wet environment fully.
Description of drawings
Fig. 1 is the structural representation of single core prefabricated branch cable.
Among the figure: 1, main cable conductor, 2, trunk insulating barrier, 3, the trunk oversheath, 4, the nonwoven fabrics lapping layer, 5, connector insulating barrier, 6, C type folder, 7, the connector outer jacket, 8, branch's oversheath, 9, branch's nonwoven fabrics, 10, branch's insulating barrier, 11, the branch cable conductor, 12, the trunk nonwoven fabrics.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the present invention is remake description.
Referring to Fig. 1, be made as example with single core prefabricated branch cable.A kind of manufacturing method for prefabricated branch flexible cable, prefabricated branch flexible cable comprises dried cable conductor 1 and branch cable conductor 11, main cable conductor 1 and the branch cable conductor 1 outer trunk insulating barrier 2 that is followed successively by respectively, trunk oversheath 3 and branch's insulating barrier 10, branch's oversheath 8, be coated with the talcum powder and the wrapped trunk nonwoven fabrics 12 that spread with interleaving agent between trunk insulating barrier 2 and the trunk oversheath 3, be coated with the talcum powder and the wrapped branch nonwoven fabrics 9 that spread with interleaving agent between branch's insulating barrier 10 and the branch's oversheath 8, main cable conductor 1 is peeled off respectively trunk insulating barrier 2 with branch cable conductor 11 junctions, trunk oversheath 3 and branch's insulating barrier 10, branch's oversheath 8, select the automatic hydraulic press utilization with the C type of convex ridge folder 6 main cable conductor 1 and branch cable conductor 11 to be carried out crimping, after crimping is complete, select suitable mould to carry out the mold pressing injection moulding of connector insulating barrier 5, wrapped nonwoven fabrics after 5 moulding of connector insulating barrier, form nonwoven fabrics lapping layer 4, mold pressing injection moulding connector outer jacket 7 again outside nonwoven fabrics lapping layer 4, connector insulating barrier 5 and connector outer jacket 7 be common to consist of the branch cable connectors; Trunk insulating barrier 2, trunk oversheath 3, branch's insulating barrier 10, branch's oversheath 8, connector insulating barrier 5, connector outer jacket 7 materials all adopt the two phenyl flame retardant type silicon rubber of methyl, and its working temperature is up to 250 ℃ behind the two phenyl flame retardant type silicon rubber vulcanizations of methyl; Before the 5 mold pressing injection mouldings of connector insulating barrier; guarantee that connector insulating barrier 5 and trunk insulating barrier 2 and branch's insulating barrier 10 do not vulcanize the formation interface; the curing temperature that scene temperature is lower than the two phenyl flame retardant type silicon rubber of methyl is made in simultaneously control; on the other hand; guaranteeing under the prerequisite of mechanical performance; vulcanizing agent and accelerator dosage in the two phenyl flame retardant type silicon rubber of strict control methyl prolong cure time as far as possible.
Referring to Fig. 1, produce this type of qualified prefabricated branch flexible cable, must strictly accomplish following some: (1) must strict control so produce main cable, branch cable and make the prefabricated branch cable time because the room temperature vulcanized silicone rubber cure time is shorter.The connector insulating barrier 5 that must guarantee the mold pressing injection moulding before the mold pressing does not vulcanize with trunk insulating barrier 2 and branch's insulating barrier 10, does not form the interface.(2) because temperature effect is very big to room temperature silicon rubber vulcanization speed; must adopt an effective measure on the one hand and guarantee before the connector mold pressing, must the production control temperature be lower than curing temperature; on the other hand; guaranteeing under the mechanical performance prerequisite; vulcanizing agent in the room temperature vulcanized silicone rubber and accelerator dosage are strictly controlled, prolonged cure time as far as possible.(3) for avoiding the adhesion of insulating barrier and restrictive coating, in the production real process of main cable and branch cable, insulating barrier is coated with talcum powder and wrapped branch nonwoven fabrics 9 and the trunk nonwoven fabrics 12 that spreads with interleaving agent outward, avoid vulcanizing rear insulating barrier and restrictive coating adhesion, same connector insulating barrier 5 outer wrapped nonwoven fabrics lapping layers 4 are avoided connector insulating barrier 5 and 7 adhesions of connector outer jacket.(4) because silicon rubber itself is comparatively soft, so main cable conductor 1 all adopts the 5th, six class conductors with branch cable conductor 11.(5) because silicon rubber branch cable oversheath mechanical performance is effective, take effective protection measure and strict science installation in production and the follow-up work progress.
Claims (1)
1. manufacturing method for prefabricated branch flexible cable, prefabricated branch flexible cable comprises main cable conductor (1) and branch cable conductor (11), it is characterized in that: the outer trunk insulating barrier (2) that is followed successively by respectively of main cable conductor (1) and branch cable conductor (1), trunk oversheath (3) and branch's insulating barrier (10), branch's oversheath (8), be coated with the talcum powder and the wrapped trunk nonwoven fabrics (12) that spread with interleaving agent between trunk insulating barrier (2) and the trunk oversheath (3), be coated with the talcum powder and the wrapped branch nonwoven fabrics (9) that spread with interleaving agent between branch's insulating barrier (10) and the branch's oversheath (8), main cable conductor (1) is peeled off respectively trunk insulating barrier (2) with branch cable conductor (11) junction, trunk oversheath (3) and branch's insulating barrier (10), branch's oversheath (8), select the automatic hydraulic press utilization with the C type of convex ridge folder (6) main cable conductor (1) and branch cable conductor (11) to be carried out crimping, after crimping is complete, select suitable mould to carry out the mold pressing injection moulding of connector insulating barrier (5), wrapped nonwoven fabrics after connector insulating barrier (5) moulding, form nonwoven fabrics lapping layer (4), mold pressing injection moulding connector outer jacket (7) again outside nonwoven fabrics lapping layer (4), connector insulating barrier (5) and connector outer jacket (7) consist of the branch cable connector jointly; Trunk insulating barrier (2), trunk oversheath (3), branch's insulating barrier (10), branch's oversheath (8), connector insulating barrier (5), connector outer jacket (7) material all adopt the two phenyl flame retardant type silicon rubber of methyl, and its working temperature is up to 250 ℃ behind the two phenyl flame retardant type silicon rubber vulcanizations of methyl; Before connector insulating barrier (5) the mold pressing injection moulding; guarantee that connector insulating barrier (5) and trunk insulating barrier (2) and branch's insulating barrier (10) do not vulcanize the formation interface; the curing temperature that scene temperature is lower than the two phenyl flame retardant type silicon rubber of methyl is made in simultaneously control; on the other hand; guaranteeing under the prerequisite of mechanical performance; vulcanizing agent and accelerator dosage in the two phenyl flame retardant type silicon rubber of strict control methyl prolong cure time as far as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110230258 CN102332345B (en) | 2011-08-09 | 2011-08-09 | Manufacturing method for prefabricated branch flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110230258 CN102332345B (en) | 2011-08-09 | 2011-08-09 | Manufacturing method for prefabricated branch flexible cable |
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| Publication Number | Publication Date |
|---|---|
| CN102332345A CN102332345A (en) | 2012-01-25 |
| CN102332345B true CN102332345B (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110230258 Expired - Fee Related CN102332345B (en) | 2011-08-09 | 2011-08-09 | Manufacturing method for prefabricated branch flexible cable |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103489520B (en) * | 2013-09-28 | 2015-12-23 | 四川新蓉电缆有限责任公司 | A kind of slip-off preventing pays the preparation method of copper core cable in advance |
| US10992254B2 (en) | 2014-09-09 | 2021-04-27 | Shoals Technologies Group, Llc | Lead assembly for connecting solar panel arrays to inverter |
| CN105047272B (en) * | 2015-06-01 | 2017-07-28 | 上海众业通电缆有限公司 | A kind of mineral insulation metallic sheath fire prevention branch cable and preparation method thereof |
| CN106952681A (en) * | 2017-03-30 | 2017-07-14 | 陈欣 | Lightning-protective cable and its processing technology |
| CN113629411B (en) * | 2021-09-06 | 2024-07-05 | 云南多宝电缆集团股份有限公司 | Cable crimping joint protection outer sheath and cable outer sheath anti-drop method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411542Y (en) * | 2000-03-09 | 2000-12-20 | 杨胜武 | Multi-core prefabricated branch cable |
| CN1308343A (en) * | 2000-03-09 | 2001-08-15 | 杨胜武 | Prefabricated multi-core branch cable |
| CN1534691A (en) * | 2003-03-30 | 2004-10-06 | 九川电器有限公司 | Armoured premade multi core branching cable |
| CN2665878Y (en) * | 2003-08-25 | 2004-12-22 | 无锡江南电缆有限公司 | Improved prefabricated branch cable |
| CN101221835A (en) * | 2007-12-27 | 2008-07-16 | 上海胜武电缆有限公司 | Prefabricated branch cable and manufacturing method thereof |
| CN201532794U (en) * | 2009-07-21 | 2010-07-21 | 江苏海达电缆有限公司 | Prefabricated branch cable |
-
2011
- 2011-08-09 CN CN 201110230258 patent/CN102332345B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411542Y (en) * | 2000-03-09 | 2000-12-20 | 杨胜武 | Multi-core prefabricated branch cable |
| CN1308343A (en) * | 2000-03-09 | 2001-08-15 | 杨胜武 | Prefabricated multi-core branch cable |
| CN1534691A (en) * | 2003-03-30 | 2004-10-06 | 九川电器有限公司 | Armoured premade multi core branching cable |
| CN2665878Y (en) * | 2003-08-25 | 2004-12-22 | 无锡江南电缆有限公司 | Improved prefabricated branch cable |
| CN101221835A (en) * | 2007-12-27 | 2008-07-16 | 上海胜武电缆有限公司 | Prefabricated branch cable and manufacturing method thereof |
| CN201532794U (en) * | 2009-07-21 | 2010-07-21 | 江苏海达电缆有限公司 | Prefabricated branch cable |
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| CN102332345A (en) | 2012-01-25 |
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