CN204189471U - Low-resistivity graphite line - Google Patents
Low-resistivity graphite line Download PDFInfo
- Publication number
- CN204189471U CN204189471U CN201420624957.9U CN201420624957U CN204189471U CN 204189471 U CN204189471 U CN 204189471U CN 201420624957 U CN201420624957 U CN 201420624957U CN 204189471 U CN204189471 U CN 204189471U
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- China
- Prior art keywords
- graphite
- fiber
- layer
- resistivity
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 60
- 239000010439 graphite Substances 0.000 title claims abstract description 60
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 229920000914 Metallic fiber Polymers 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 16
- 239000004575 stone Substances 0.000 claims abstract description 10
- 239000012790 adhesive layer Substances 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000003365 glass fiber Substances 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 229920000271 Kevlar® Polymers 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000004761 kevlar Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 17
- -1 graphite compound Chemical class 0.000 abstract description 10
- 238000002360 preparation method Methods 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 6
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000002041 carbon nanotube Substances 0.000 description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229940048053 acrylate Drugs 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229940047670 sodium acrylate Drugs 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002048 multi walled nanotube Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000003232 water-soluble binding agent Substances 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- Conductive Materials (AREA)
Abstract
The utility model provides a kind of low-resistivity graphite line, obtained by composite stone ink ribbon twisting, described composite stone ink ribbon comprises two-layer myrmekite layer of ink and is laid in inorfil and the metallic fiber formation of two-layer graphite layers, and inorfil and metallic fiber external sheath have conductive adhesive layer.The utility model graphite line resistivity can significantly reduce, and can be used for preparation corrosion resistance graphite compound earthing material, is applicable to the lightning protection engineering of the field of power such as power plants and station, electric power line pole tower.
Description
Technical field
The utility model relates to a kind of electric power system lightning protection ground material, particularly relates to a kind of low-resistivity graphite line.
Background technology
The grounding-for-lightning device of China's electric power system is the critical facility ensureing power system safety and stability, guarantee power construction personnel personal safety, and low grounding resistance, the not low operation expense of burn into steady in a long-term are the targets of electric power system earthing device.The existing earthing material of China mainly based on metallic ground material, such as mild steel, galvanized steel, stainless steel, copper, copper covered steel etc.But metallic ground material is except the higher copper earthing material of price, and often decay resistance is poor, and useful life is low, and maintenance cost is high; And be in use also faced with transport and constructional difficulties, bend being difficult to of causing due to inconvenience and select the problems such as form of construction work according to landform.In addition, because the secondary value of the metal material such as copper, steel is high, therefore metallic ground material meets with and thinks that theft, the accident destroyed emerge in an endless stream, and brings hidden trouble to electric power system.
In recent years, graphite compound earthing material obtains extensive concern as the novel grounded material of one, and existing earthing device starts demonstrating running.Although graphite is a kind of excellence conductor, its resistivity is higher than the metallic ground such as steel, copper material 1 ~ 2 order of magnitude.Therefore, the conductivity improving graphite compound earthing material is as far as possible one of important means reducing Resistance of Grounding Grids.
Utility model content
For the problem that existing graphite compound earthing material graphite line used resistivity is higher, the utility model provides a kind of resistivity can significantly reduced low resistance graphite line.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of low-resistivity graphite line, is obtained by composite stone ink ribbon twisting, and described composite stone ink ribbon comprises two-layer myrmekite layer of ink and is laid in inorfil and the metallic fiber formation of two-layer graphite layers, and inorfil and metallic fiber external sheath have conductive adhesive layer.
Above-mentioned inorfil is glass fibre, carbon fiber, boron fibre, kevlar fiber or ceramic fibre.
Above-mentioned metallic fiber is copper fiber, stainless steel fibre or nickel fiber.
Compared to the prior art, the utility model tool has the following advantages and beneficial effect:
1, the utility model graphite line resistivity can significantly reduce, and is conducive to preparing the good graphite compound earthing material of conductivity; Compare with the graphite line recorded in " the novel graphite compound earthing material " of patent No. ZL201320654859.5, its resistivity can reduce by 1 order of magnitude.
2, can be used for preparation corrosion resistance graphite compound earthing material, be applicable to the lightning protection engineering of the field of power such as power plants and station, electric power line pole tower.
Accompanying drawing explanation
Fig. 1 is composite graphite band structure schematic diagram;
Fig. 2 is the compound schematic diagram of fiber and conducting resinl.
Wherein, 1-upper strata worm graphite paper; 2-lower floor worm graphite paper; 3-metallic fiber; 4-inorfil; 5-metallic fiber or inorfil; 6-conductive adhesive layer.
Specific embodiment
In concrete enforcement, the main raw materials of the utility model comprise carbon content higher than 85% high-purity worm graphite, conducting resinl, glass fibre and metallic fiber, metallic fiber is the good metallic fiber of corrosion resistance, can be the low resistivity metal fibers such as copper fiber, stainless steel fibre, nickel fiber.
For reducing graphite line resistivity, conducting resinl is adopted to play adhesive effect.Conducting resinl comprises electrically conductive particles, dispersant and water-soluble binder.The preparation method of conducting resinl is: adopt sonic oscillation method hybrid conductive particulate and dispersant and low-speed centrifugal obtains dispersing conductive fine particles liquid, adopts paddling process that dispersing conductive fine particles liquid and water-soluble binder are mixed to get conducting resinl.
Carry out roll-in to worm graphite and make that smooth surface is smooth, the uniform worm graphite paper of thickness, worm graphite paper thickness is advisable with 0.1 ~ 1.2mm.
Preparation method is as follows for composite stone ink ribbon: metallic fiber and the glass fibre of selecting diameter 0.08 ~ 0.2mm, and metallic fiber and glass fibre number ratio are preferably 1/4 ~ 1/2; Adopt conducting resinl metallic fiber and fiberglass skin to be infiltrated, and be equidistantly laid between upper and lower two-layer worm graphite paper; Keep 60 ~ 100s to carry out thermosetting process in 80 ~ 120 DEG C of temperature, obtain composite graphite paper through more than twice roll-in simultaneously.Further, cut the composite stone ink ribbon that composite graphite paper obtains width 10mm ~ 25mm, gained composite graphite belt surface is smooth; The top layer of graphite tape is made to expose without fiber owing to employing conducting resinl.
Adopt twisting machine to carry out unidirectional twist to composite graphite band and obtain low-resistivity graphite line, different with width according to composite graphite tape thickness, the low-resistivity graphite line diameter of preparation is generally between 1.8 ~ 3.2mm.
Several specific embodiments of the low-resistivity graphite line that the utility model provides are as follows:
Embodiment 1
Raw material comprise the worm graphite of phosphorus content about 94.5%, the copper fiber of diameter 0.12mm, the glass fibre of diameter 600D and conducting resinl, and copper fiber number is 5, and glass fibre quantity is 10.Conducting resinl comprises carbon nano-tube, lauryl sodium sulfate and acrylate, by carbon nano-tube, lauryl sodium sulfate and acrylate is ultrasonic mixes, the mass percent of carbon nano-tube about 1.5% in mixed liquor, the mass percent about 0.5% of lauryl sodium sulfate, acrylate mass percent about 98%.
Roll-in mode is adopted to prepare the worm graphite paper of thickness 0.18mm; See Fig. 1 ~ 2, adopt conducting resinl by copper fiber and fiberglass skin homogeneous immersion, then copper fiber and glass fibre are equidistantly arranged between two-layer worm graphite paper, in 95 DEG C of temperature thermosetting 60s, through twice roll-in, and cut, obtain the composite stone ink ribbon of width 22mm, thickness 0.28mm, composite graphite belt surface is smooth exposed without fiber.
Utilize twisting machine that composite graphite band carry out unidirectional twist system, obtain the low-resistivity graphite line that diameter is about 2.2mm.Adopt four-electrode method measuring resistance, length is the graphite line recorded in " the novel graphite compound earthing material " of the present embodiment graphite line resistance about 0.84 Ω of 1m, patent No. ZL201320654859.5, its 1m resistance about 4.5 Ω.
Embodiment 2
Raw material comprise the worm graphite of phosphorus content about 94.5%, the copper fiber of diameter 0.12mm, the glass fibre of diameter 600D and conducting resinl, and copper fiber number is 8, and glass fibre quantity is 16.Conducting resinl comprises multi-walled carbon nano-tubes, lauryl sodium sulfate and acrylate, by multi-walled carbon nano-tubes, lauryl sodium sulfate, defoamer and acrylate is ultrasonic mixes, the mass percent of carbon nano-tube about 1.5% in mixed liquor, the mass percent about 0.5% of lauryl sodium sulfate, acrylate mass percent about 98%.。
Roll-in mode is adopted to prepare the worm graphite paper of thickness 0.24mm; See Fig. 1 ~ 2, adopt conducting resinl by copper fiber and fiberglass skin homogeneous immersion, then copper fiber and glass fibre are equidistantly arranged between two-layer worm graphite paper, in 95 DEG C of temperature thermosetting 60s, through twice roll-in, and cut, obtain the composite stone ink ribbon of width 32mm, thickness 0.32mm, composite graphite belt surface is smooth exposed without fiber.
Utilize twisting machine that composite graphite band carry out unidirectional twist system, obtain the low-resistivity graphite line that diameter is about 2.8mm.Adopt four-electrode method measuring resistance, length is the graphite line recorded in " the novel graphite compound earthing material " of the present embodiment graphite line resistance about 0.51 Ω of 1m, patent No. ZL201320654859.5, its 1m resistance about 4.5 Ω.
Illustrate this patent described in above-described embodiment; though be described by specific term in literary composition; but the protection range of this patent can not be limited with this; the personage being familiar with this technical field can change it or revise and reach equivalent object after the spirit understanding this patent and principle; and this equivalence is changed and amendment, all should be covered by right and define in category.
Claims (3)
1. a low-resistivity graphite line, is characterized in that:
Obtained by composite stone ink ribbon twisting, described composite stone ink ribbon comprises two-layer myrmekite layer of ink and is laid in inorfil and the metallic fiber formation of two-layer graphite layers, and inorfil and metallic fiber external sheath have conductive adhesive layer.
2. low-resistivity graphite line as claimed in claim 1, is characterized in that:
Described inorfil is glass fibre, carbon fiber, boron fibre, kevlar fiber or ceramic fibre.
3. low-resistivity graphite line as claimed in claim 1, is characterized in that:
Described metallic fiber is copper fiber, stainless steel fibre or nickel fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420624957.9U CN204189471U (en) | 2014-10-27 | 2014-10-27 | Low-resistivity graphite line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420624957.9U CN204189471U (en) | 2014-10-27 | 2014-10-27 | Low-resistivity graphite line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204189471U true CN204189471U (en) | 2015-03-04 |
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ID=52621449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420624957.9U Expired - Lifetime CN204189471U (en) | 2014-10-27 | 2014-10-27 | Low-resistivity graphite line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204189471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888518A (en) * | 2018-12-27 | 2019-06-14 | 青岛康博尔石墨制品有限公司 | Automate the production equipment and production technology of graphite line |
-
2014
- 2014-10-27 CN CN201420624957.9U patent/CN204189471U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888518A (en) * | 2018-12-27 | 2019-06-14 | 青岛康博尔石墨制品有限公司 | Automate the production equipment and production technology of graphite line |
| CN109888518B (en) * | 2018-12-27 | 2020-06-09 | 青岛康博尔石墨制品有限公司 | Automatic graphite line production equipment and production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150304 |