CN106373643B - A kind of high-insulativity high-temperature cable and its manufacture method - Google Patents
A kind of high-insulativity high-temperature cable and its manufacture method Download PDFInfo
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- CN106373643B CN106373643B CN201610713344.6A CN201610713344A CN106373643B CN 106373643 B CN106373643 B CN 106373643B CN 201610713344 A CN201610713344 A CN 201610713344A CN 106373643 B CN106373643 B CN 106373643B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of high-insulativity high-temperature cable and its manufacture method, the high-insulativity high-temperature cable includes top layer sheath, voided layer, supporting layer, liner, insulating barrier, conductor, bear when can be long 70 DEG C ~ 200 DEG C operating temperature, at least can anti lightning abrupt slope peak value 5000kV/s, yield strength be not less than 80N/mm2, elongation percentage not less than 25%, tensile strength be not less than 100N/mm2；By will using ad hoc approach manufacture ceramic fibre be woven into webmaster shape be used as supporting layer, increase voided layer design, from high temperature resistant anti-aging materials as base material, obtain splendid high-temperature insulation performance；The present invention high-insulativity high-temperature cable comprehensive mechanical performance is good, insulating properties is strong, high temperature resistant, anti-aging, service life is long, use range is wide.
Description
Technical field
The present invention relates to field of electrical components, more particularly to a kind of high-insulativity high-temperature cable and its manufacture method.
Background technology
Cable, typically by several or similar rope that several groups of wires (every group at least two) are twisted cable, often
Mutually insulated between group wire, and be often twisted into around a center, whole outside is surrounded by the coating of high-insulation.Cable has
There are interior energization, the feature of external insulation.
Insulating barrier uniformly hermetically wraps up one layer of non electrically conductive material in cable conductor periphery, such as：Resin, plastics,
Silicon rubber, PVC etc., but these materials are limited by essential performance, its heat resistance and insulating properties are compared for ceramic based material
It is weaker.
In the Patents applied at home, patent《A kind of ceramic insulation high temperature-resistant cable》(application number：
201520062210.3 publication date：2015-07-08), disclose it is a kind of by ceramic layer coats conductor core surfaces insulation
Method, but due to being the continuous plating used, ceramic membrane fragility is very big, and ceramic layer is broken after bending, fragile conductor core
With destroy insulate skin-material, make the service life of final molding product it is short, it is also easy to aging and corrosion, on the other hand, due to it
Its material is all no to select the high insulating materials of high temperature resistant, therefore with the still non-refractory of other parts outside ceramic segment, insulating properties
Poor, due to no global design and reasonable combination, the tensile strength of the ceramic insulation high temperature-resistant cable of the invention, surrender are strong
Degree, elongation percentage are suitable with general cable, and comprehensive mechanical performance is bad.
The content of the invention
To solve drawbacks described above present in prior art, the present invention is intended to provide a kind of comprehensive mechanical performance is good, insulation
Property strong, high temperature resistant, the high-insulativity high-temperature cable that anti-aging, service life is long, use range is wide and its manufacture method.
To achieve these goals, the present invention uses following technical scheme：A kind of manufacturer of high-insulativity high-temperature cable
Method, comprise the following steps：
1) selection of raw material and preparation
1. top layer sheath raw material selection heat vulcanized silicone rubber, selection standard are：Its specific insulation not less than 2 ×
1015Ω cm, dielectric strength not less than 200kV/cm, it is long when operating temperature range -55~180 DEG C；
2. Teflon membranes raw material selection polytetrafluoroethylene (PTFE)；
3. supporting layer raw material selection ceramic alumina fiber, its yield strength is not less than 80N/mm2, elongation percentage is not less than
25%th, specific insulation is not less than 2 × 1013Ω cm, dielectric strength are not less than 500kV/cm；
4. liner raw material selection ENB ethylene propylene diene rubbers；
5. the mixing material of insulating barrier raw material selection epoxy resin and glass fibre by weight 9: 1；
6. conductor raw material selection copper material or aluminium；
2) preparation of ceramic alumina fiber
1. Aluminum Chloride Hexahydrate is mixed with appropriate amount of purified water, stir and impurity screening, allotment extremely obtain mass percent
58%-65% liquor alumini chloridi；
2. the 1. container for filling liquor alumini chloridi that step is obtained carries out dither, then will uniformly delay after ammonia atomization
Slowly it is passed through in 1. liquor alumini chloridi that step is prepared, obtains pending solution；
3. step 2. after the completion of continue dither 30min-40min, the pending solution for then 2. obtaining step puts
Under 25 DEG C -30 DEG C of isoperibol, and mechanical agitation 30min-40min, obtain preformed solution；
4. dilute hydrochloric acid solution is slowly added dropwise in 3. preformed solution that step obtains and stirs, to the pH value 4.8- of solution
5.2 obtain original sol solutionses；
5. at a temperature of 4. original sol solutionses that step is obtained are placed in 70 DEG C -80 DEG C, flow back 8h, obtains prefabricated sol solutionses；
6. being slowly added the poly-vinyl alcohol solution of 3-5% concentration in 5. prefabricated sol solutionses that step obtains, obtain and wait to locate
Manage colloidal sol；
7. the pending colloidal sol 6. obtained to step using absolute ethyl alcohol is rinsed to clean repeatedly；
8. 7. colloidal sol that step is obtained be spun into it is thread, that is, obtain needed for stand-by colloidal sol；
9. 8. nano alumina powder jointed stand-by colloidal sol that step is obtained is positioned over the protection that pressure in stove is 18-20Mpa
In atmosphere, it is sintered at a temperature of 1000 DEG C -1050 DEG C, sintering time 2h-3h；
10. after the completion of sintering, furnace cooling when furnace temperature T is not less than 800 DEG C；It is half-open that furnace temperature T is in 800 DEG C of 500 DEG C≤T ＜
Fire door cools down；500 DEG C of air coolings of coming out of the stove of furnace temperature T ＜；Ceramic alumina fiber needed for obtaining is air-cooled to after 150 DEG C of T ＜；
3) manufacture of high-insulativity high-temperature cable
1. conductor is woven, obtain stand-by conductor；
2. 1) 5. epoxy resin that step in prepares and glass fibre are heated into molten state, encapsulation fluid is obtained；
3. 1. stand-by conductor that step is obtained is put into 2. encapsulation that step obtains and is packaged with fluid, stand-by core is obtained
Material；
4. 1) 4. ENB ethylene propylene diene rubbers that step in prepares are made into tubulose, set inner tube layer is obtained；
5. 2) 10. ceramic alumina fiber that step in is obtained is woven into dense mess tubulose, it is sleeved on what 4. step obtained
Sleeve pipe inner layer outer surface, obtain sleeve pipe middle level；
6. even application is in 5. sleeve pipe middle level outer surface that step obtains, coating thickness 2mm- after polytetrafluoroethylene (PTFE) is melted
3mm, obtain the sleeve pipe middle level with Teflon membranes；
7. 1) 1. heat vulcanized silicone rubber that step in prepares is made into top layer sheath, the internal diameter of the top layer sheath compares step
6. the sleeve pipe middle level big 1mm~2mm of external diameter with Teflon membranes obtained；
8. in the 6. sleeve pipe middle level with Teflon membranes that 3. stand-by core inserting step that step is obtained obtains,
In the top layer sheath again 7. the assembly entirety inserting step of acquisition obtained, that is, obtain needed for high-insulativity high-temperature cable.
The high-insulativity high-temperature cable produced according to a kind of above-mentioned manufacture method of high-insulativity high-temperature cable, including table
Layer sheath, supporting layer, liner, insulating barrier, conductor；Be additionally provided with voided layer between top layer sheath and supporting layer, voided layer with
Supporting layer intersection is provided with Teflon membranes；Top layer sheath is made of heat vulcanized silicone rubber；Supporting layer uses oxygen
Change aluminium ceramic fibre to be made；Liner is made of ENB ethylene propylene diene rubbers；Insulating barrier is using epoxy resin with glass fibre by weight
Mixing material of the amount than 9: 1 is made.
The high-insulativity high-temperature cable born when can be long -70 DEG C~200 DEG C operating temperature, at least can anti lightning abrupt slope peak
Value 5000kV/s, yield strength are not less than 80N/mm2, elongation percentage not less than 25%, tensile strength be not less than 100N/mm2。
Compared with prior art, the present invention has advantages below：Heat vulcanized silicone rubber, the ENB EPDMs of selection
Rubber, ceramic alumina fiber all have extraordinary resistant to elevated temperatures ageing resistace, plus in supporting layer and top layer sheath
Between be provided with voided layer, play radiating, heat-insulated effect, white poly tetrafluoroethylene can with reflecting part light and heat energy,
And propagated by voided layer and transparent heat vulcanized silicone rubber top layer, heat-sinking capability is much stronger than normal cable so that whole electricity
Cable entirety high temperature resistance ageing resistace obtains considerable lifting, therefore the high-insulativity high-temperature cable high temperature resistant of the present invention, anti-ageing
Change, service life length；Because top layer sheath uses heat vulcanized silicone rubber, selection standard is：Its specific insulation not less than 2 ×
1015Ω cm, dielectric strength are not less than 200kV/cm, supporting layer ceramic alumina fiber, and selection standard is：Its specific insulation
Not less than 2 × 1013Ω cm, dielectric strength are not less than 500kV/cm, and insulating barrier uses the mixing of epoxy resin and glass fibre
Thing, along with the cut-off of voided layer, make cable integral insulation very strong and be not easy breakdown damage, at least can anti lightning abrupt slope peak value
5000kV/s；Overall construction design is reasonable, each hierarchical structure and material function are complementary, have ceramic fibre high-intensity high heat-resistance,
The high-elongation of silicon rubber and a wide range of operating temperature, the high tenacity of epoxy resin and mixture of glass fibers and buffer capacity,
Therefore the comprehensive mechanical performance of the present invention is good, use range is wide.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure：Top layer sheath 1, voided layer 2, Teflon membranes 3, supporting layer 4, liner 5, insulating barrier 6, conductor 7.
Embodiment
Embodiment 1：
A kind of high-insulativity high-temperature cable, by outer and interior be respectively arranged with top layer sheath 1, voided layer 2, poly tetrafluoroethylene
Layer 3, supporting layer 4, liner 5, insulating barrier 6, conductor 7；Top layer sheath 1 is made of heat vulcanized silicone rubber；Supporting layer 4 uses oxygen
Change aluminium ceramic fibre to be made；Liner 5 is made of ENB ethylene propylene diene rubbers；Insulating barrier 6 is pressed using epoxy resin with glass fibre
Mixing material of the weight than 9: 1 is made；
The manufacture method of the high-insulativity high-temperature cable, comprises the following steps：
1) selection of raw material and preparation
1. the raw material selection heat vulcanized silicone rubber of top layer sheath 1, selection standard are：Its specific insulation not less than 2 ×
1015Ω cm, dielectric strength not less than 200kV/cm, it is long when operating temperature range -55~180 DEG C；
2. the raw material selection polytetrafluoroethylene (PTFE) of Teflon membranes 3；
3. the raw material selection ceramic alumina fiber of supporting layer 4, its yield strength are not less than 80N/mm2, elongation percentage it is not low
It is not less than 2 × 10 in 25%, specific insulation13Ω cm, dielectric strength are not less than 500kV/cm；
4. the raw material selection ENB ethylene propylene diene rubbers of liner 5；
5. the mixing material of the raw material selection epoxy resin of insulating barrier 6 and glass fibre by weight 9: 1；
6. the raw material selection copper material of conductor 7 or aluminium；
2) preparation of ceramic alumina fiber
1. Aluminum Chloride Hexahydrate is mixed with appropriate amount of purified water, stir and impurity screening, allotment extremely obtain mass percent
65% liquor alumini chloridi；
2. the 1. container for filling liquor alumini chloridi that step is obtained carries out dither, then will uniformly delay after ammonia atomization
Slowly it is passed through in 1. liquor alumini chloridi that step is prepared, obtains pending solution；
3. step 2. after the completion of continue dither 40min, the pending solution for then 2. obtaining step is placed in 30 DEG C
Isoperibol under, and mechanical agitation 40min, obtain preformed solution；
4. dilute hydrochloric acid solution is slowly added dropwise in 3. preformed solution that step obtains and stirs, to the pH value 5.2 of solution, obtain
Obtain original sol solutionses；
5. at a temperature of 4. original sol solutionses that step is obtained are placed in 80 DEG C, flow back 8h, obtains prefabricated sol solutionses；
6. being slowly added the poly-vinyl alcohol solution of 5% concentration in 5. prefabricated sol solutionses that step obtains, obtain pending
Colloidal sol；
7. the pending colloidal sol 6. obtained to step using absolute ethyl alcohol is rinsed to clean repeatedly；
8. 7. colloidal sol that step is obtained be spun into it is thread, that is, obtain needed for stand-by colloidal sol；
9. 8. nano alumina powder jointed stand-by colloidal sol that step is obtained is positioned over the protective atmosphere that pressure in stove is 20Mpa
In, it is sintered at a temperature of 1050 DEG C, sintering time 3h；
10. after the completion of sintering, furnace cooling when furnace temperature T is not less than 800 DEG C；It is half-open that furnace temperature T is in 800 DEG C of 500 DEG C≤T ＜
Fire door cools down；500 DEG C of air coolings of coming out of the stove of furnace temperature T ＜；Ceramic alumina fiber needed for obtaining is air-cooled to after 150 DEG C of T ＜；
3) manufacture of high-insulativity high-temperature cable
1. conductor 7 is woven, obtain stand-by conductor 7；
2. 1) 5. epoxy resin that step in prepares and glass fibre are heated into molten state, encapsulation fluid is obtained；
3. 1. stand-by conductor 7 that step is obtained is put into 2. encapsulation that step obtains and is packaged with fluid, obtain stand-by
Core；
4. 1) 4. ENB ethylene propylene diene rubbers that step in prepares are made into tubulose, set inner tube layer is obtained；
5. 2) 10. ceramic alumina fiber that step in is obtained is woven into dense mess tubulose, it is sleeved on what 4. step obtained
Sleeve pipe inner layer outer surface, obtain sleeve pipe middle level；
6. even application is in 5. sleeve pipe middle level outer surface that step obtains after polytetrafluoroethylene (PTFE) is melted, coating thickness 3mm,
Obtain the sleeve pipe middle level with Teflon membranes 3；
7. 1) 1. heat vulcanized silicone rubber that step in prepares is made into top layer sheath 1, the internal diameter of the top layer sheath 1 is than step
The rapid sleeve pipe middle level big 2mm of external diameter with Teflon membranes 3 6. obtained；
8. the 6. sleeve pipe middle level with Teflon membranes 3 that 3. stand-by core inserting step that step is obtained obtains
In, then in 7. top layer sheath 1 that the assembly entirety inserting step of acquisition is obtained, that is, obtain needed for high-insulativity high-temperature electric
Cable.
Born according to cable sample manufactured in the present embodiment, when can be long -70 DEG C~200 DEG C operating temperature, can anti lightning
Abrupt slope peak value 6300kV/s, yield strength 103N/mm2, elongation percentage 28%, tensile strength be less than 127N/mm2。
Embodiment 2：
A kind of high-insulativity high-temperature cable, by outer and interior be respectively arranged with top layer sheath 1, voided layer 2, poly tetrafluoroethylene
Layer 3, supporting layer 4, liner 5, insulating barrier 6, conductor 7；Top layer sheath 1 is made of heat vulcanized silicone rubber；Supporting layer 4 uses oxygen
Change aluminium ceramic fibre to be made；Liner 5 is made of ENB ethylene propylene diene rubbers；Insulating barrier 6 is pressed using epoxy resin with glass fibre
Mixing material of the weight than 9: 1 is made；
The manufacture method of the high-insulativity high-temperature cable, comprises the following steps：
1) selection of raw material and preparation
1. the raw material selection heat vulcanized silicone rubber of top layer sheath 1, selection standard are：Its specific insulation not less than 2 ×
1015Ω cm, dielectric strength not less than 200kV/cm, it is long when operating temperature range -55~180 DEG C；
2. the raw material selection polytetrafluoroethylene (PTFE) of Teflon membranes 3；
3. the raw material selection ceramic alumina fiber of supporting layer 4, its yield strength are not less than 80N/mm2, elongation percentage it is not low
It is not less than 2 × 10 in 25%, specific insulation13Ω cm, dielectric strength are not less than 500kV/cm；
4. the raw material selection ENB ethylene propylene diene rubbers of liner 5；
5. the mixing material of the raw material selection epoxy resin of insulating barrier 6 and glass fibre by weight 9: 1；
6. the raw material selection copper material of conductor 7 or aluminium；
2) preparation of ceramic alumina fiber
1. Aluminum Chloride Hexahydrate is mixed with appropriate amount of purified water, stir and impurity screening, allotment extremely obtain mass percent
58% liquor alumini chloridi；
2. the 1. container for filling liquor alumini chloridi that step is obtained carries out dither, then will uniformly delay after ammonia atomization
Slowly it is passed through in 1. liquor alumini chloridi that step is prepared, obtains pending solution；
3. step 2. after the completion of continue dither 30min, the pending solution for then 2. obtaining step is placed in 25 DEG C
Isoperibol under, and mechanical agitation 30min, obtain preformed solution；
4. dilute hydrochloric acid solution is slowly added dropwise in 3. preformed solution that step obtains and stirs, to the pH value 4.8 of solution, obtain
Obtain original sol solutionses；
5. at a temperature of 4. original sol solutionses that step is obtained are placed in 70 DEG C, flow back 8h, obtains prefabricated sol solutionses；
6. being slowly added the poly-vinyl alcohol solution of 3% concentration in 5. prefabricated sol solutionses that step obtains, obtain pending
Colloidal sol；
7. the pending colloidal sol 6. obtained to step using absolute ethyl alcohol is rinsed to clean repeatedly；
8. 7. colloidal sol that step is obtained be spun into it is thread, that is, obtain needed for stand-by colloidal sol；
9. 8. nano alumina powder jointed stand-by colloidal sol that step is obtained is positioned over the protective atmosphere that pressure in stove is 18Mpa
In, it is sintered at a temperature of 1000 DEG C, sintering time 2h；
10. after the completion of sintering, furnace cooling when furnace temperature T is not less than 800 DEG C；It is half-open that furnace temperature T is in 800 DEG C of 500 DEG C≤T ＜
Fire door cools down；500 DEG C of air coolings of coming out of the stove of furnace temperature T ＜；Ceramic alumina fiber needed for obtaining is air-cooled to after 150 DEG C of T ＜；
3) manufacture of high-insulativity high-temperature cable
1. conductor 7 is woven, obtain stand-by conductor 7；
2. 1) 5. epoxy resin that step in prepares and glass fibre are heated into molten state, encapsulation fluid is obtained；
3. 1. stand-by conductor 7 that step is obtained is put into 2. encapsulation that step obtains and is packaged with fluid, obtain stand-by
Core；
4. 1) 4. ENB ethylene propylene diene rubbers that step in prepares are made into tubulose, set inner tube layer is obtained；
5. 2) 10. ceramic alumina fiber that step in is obtained is woven into dense mess tubulose, it is sleeved on what 4. step obtained
Sleeve pipe inner layer outer surface, obtain sleeve pipe middle level；
6. even application is in 5. sleeve pipe middle level outer surface that step obtains after polytetrafluoroethylene (PTFE) is melted, coating thickness 2mm,
Obtain the sleeve pipe middle level with Teflon membranes 3；
7. 1) 1. heat vulcanized silicone rubber that step in prepares is made into top layer sheath 1, the internal diameter of the top layer sheath 1 is than step
The rapid sleeve pipe middle level big 1mm of external diameter with Teflon membranes 3 6. obtained；
8. the 6. sleeve pipe middle level with Teflon membranes 3 that 3. stand-by core inserting step that step is obtained obtains
In, then in 7. top layer sheath 1 that the assembly entirety inserting step of acquisition is obtained, that is, obtain needed for high-insulativity high-temperature electric
Cable.
Born according to cable sample manufactured in the present embodiment, when can be long -70 DEG C~180 DEG C operating temperature, can anti lightning
Abrupt slope peak value 5600kV/s, yield strength 87N/mm2, elongation percentage 45%, tensile strength be less than 110N/mm2。
The foregoing description of the disclosed embodiments, only for enabling professional and technical personnel in the field to realize or using this
Invention.A variety of modifications to these embodiments will be apparent for those skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore,
The present invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The consistent most wide scope of point.
Claims (2)
1. a kind of manufacture method of high-insulativity high-temperature cable, it is characterised in that comprise the following steps：
1) selection of raw material and preparation
Top layer sheath 1. (1) raw material selection heat vulcanized silicone rubber；
Teflon membranes 2. (3) raw material selection polytetrafluoroethylene (PTFE)；
Supporting layer 3. (4) raw material selection ceramic alumina fiber；
Liner 4. (5) raw material selection ENB ethylene propylene diene rubbers；
The mixing material of insulating barrier 5. (6) raw material selection epoxy resin and glass fibre by weight 9: 1；
Conductor 6. (7) raw material selection copper material or aluminium；
2) preparation of ceramic alumina fiber
1. Aluminum Chloride Hexahydrate is mixed with appropriate amount of purified water, stir and impurity screening, allotment extremely obtain mass percent 58%-
65% liquor alumini chloridi；
2. by step 1. obtain fill liquor alumini chloridi container carry out dither, then by after ammonia atomization uniformly slowly
It is passed through in 1. liquor alumini chloridi that step is prepared, obtains pending solution；
3. step 2. after the completion of continue dither 30min-40min, the pending solution for then 2. obtaining step is placed in 25
Under DEG C -30 DEG C of isoperibol, and mechanical agitation 30min-40min, obtain preformed solution；
4. dilute hydrochloric acid solution is slowly added dropwise in 3. preformed solution that step obtains and stirs, to the pH value 4.8-5.2 of solution, obtain
Obtain original sol solutionses；
5. at a temperature of 4. original sol solutionses that step is obtained are placed in 70 DEG C -80 DEG C, flow back 8h, obtains prefabricated sol solutionses；
6. being slowly added the poly-vinyl alcohol solution of 3-5% concentration in 5. prefabricated sol solutionses that step obtains, obtain pending molten
Glue；
7. the pending colloidal sol 6. obtained to step using absolute ethyl alcohol is rinsed to clean repeatedly；
8. 7. colloidal sol that step is obtained be spun into it is thread, that is, obtain needed for stand-by colloidal sol；
9. 8. nano alumina powder jointed stand-by colloidal sol that step is obtained is positioned over the protective atmosphere that pressure in stove is 18-20Mpa
In, it is sintered at a temperature of 1000 DEG C -1050 DEG C, sintering time 2h-3h；
10. after the completion of sintering, furnace cooling when furnace temperature T is not less than 800 DEG C；Furnace temperature T is in 500 DEG C≤T ＜, 800 DEG C of half-open fire doors
Cooling；500 DEG C of air coolings of coming out of the stove of furnace temperature T ＜；Ceramic alumina fiber needed for obtaining is air-cooled to after 150 DEG C of T ＜；
3) manufacture of high-insulativity high-temperature cable
1. conductor (7) is woven, obtain stand-by conductor (7)；
2. 1) 5. epoxy resin that step in prepares and glass fibre are heated into molten state, encapsulation fluid is obtained；
3. 1. stand-by conductor (7) that step obtains is put into 2. encapsulation that step obtains to be packaged with fluid, stand-by core is obtained
Material；
4. 1) 4. ENB ethylene propylene diene rubbers that step in prepares are made into tubulose, set inner tube layer is obtained；
5. 2) 10. ceramic alumina fiber that step in is obtained is woven into dense mess tubulose, 4. sleeve pipe that step obtains is sleeved on
Inner layer outer surface, obtain sleeve pipe middle level；
6. even application is in 5. sleeve pipe middle level outer surface that step obtains after polytetrafluoroethylene (PTFE) is melted, coating thickness 2mm-3mm,
Obtain the sleeve pipe middle level with Teflon membranes (3)；
7. 1) 1. heat vulcanized silicone rubber that step in prepares is made into top layer sheath (1), the internal diameter of the top layer sheath (1) is than step
The sleeve pipe middle level big 1mm~2mm of external diameter of the rapid band Teflon membranes (3) 6. obtained；
8. in the sleeve pipe middle level of 6. band Teflon membranes (3) that 3. stand-by core inserting step that step is obtained obtains,
The top layer sheath (1) again 7. the assembly entirety inserting step of acquisition obtained is interior, i.e. high-insulativity high-temperature cable needed for acquisition.
A kind of 2. high-insulativity high-temperature electric that manufacture method of high-insulativity high-temperature cable produces according to claim 1
Cable, including top layer sheath (1), supporting layer (4), liner (5), insulating barrier (6), conductor (7), it is characterised in that：In top layer sheath
(1) voided layer (2) is additionally provided between supporting layer (4), voided layer (2) is provided with polytetrafluoroethyl-ne with supporting layer (4) intersection
Alkene film layer (3)；Top layer sheath (1) is made of heat vulcanized silicone rubber；Supporting layer (4) is made of ceramic alumina fiber；
Liner (5) is made of ENB ethylene propylene diene rubbers；Insulating barrier (6) uses the mixed of epoxy resin and glass fibre by weight 9: 1
Condensation material is made.
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|---|---|---|---|---|
| CN101430954A (en) * | 2008-12-11 | 2009-05-13 | 中国西电电气股份有限公司 | Production method for composite insulator silicon rubber jacket |
| CN102306513A (en) * | 2010-07-27 | 2012-01-04 | 南洋电缆集团有限公司 | Expansion type environment-friendly halogen-free high-flame retardant and fire-resistant cable and method thereof |
| CN105348575A (en) * | 2015-11-26 | 2016-02-24 | 王威淞 | Formula of insulating cable jacket encapsulation |
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Effective date of registration: 20190717 Address after: 055550 Ningjin Xiankou Development Zone, Xingtai City, Hebei Province Patentee after: Days Link Cable Group Co., Ltd. Address before: 315000 room 1788-3, building 1558, Jiangnan Road, hi tech Zone, Ningbo, Zhejiang, China, 17 Patentee before: Ningbo Huazhong and Industrial Design Co. Ltd. |