CN105071063B - A kind of soft graphite is combined earthing material anticorrosion connection method - Google Patents

A kind of soft graphite is combined earthing material anticorrosion connection method Download PDF

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Publication number
CN105071063B
CN105071063B CN201510247690.5A CN201510247690A CN105071063B CN 105071063 B CN105071063 B CN 105071063B CN 201510247690 A CN201510247690 A CN 201510247690A CN 105071063 B CN105071063 B CN 105071063B
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China
Prior art keywords
fluid sealant
mould
soft graphite
metal
hollow mould
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CN201510247690.5A
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CN105071063A (en
Inventor
裴锋
田旭
刘欣
贾蕗路
张宇
饶斌斌
周友武
曹凤香
毛荣军
李财芳
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Jiangxi Electric Power Co Ltd
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Jiangxi Electric Power Co Ltd
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Abstract

A kind of soft graphite is combined earthing material anticorrosion connection method, the coupling part of soft graphite and metal is positioned in hollow mould by methods described, fluid sealant is injected into mould cavity by the inlet above mould, and solidify, after the demoulding, the coupling part of soft graphite and metal is isolated so as to realize with external environment condition by fluid sealant tight enclosing.Hollow mould is by hollow mould top half(1)With hollow mould the latter half(2)Composition, two parts constitute complete hollow mould after merging, and form mould inside cavity(7), wherein hollow mould top half has fluid sealant inlet(3), fluid sealant inlet connects with mould inside cavity.The inventive method is simple and easy to operate, realize that the junction cladding of soft graphite and metal is sealed, completely cut off with corrosive environment, effectively suppress the compound corrosion between earthing material and metal of soft graphite, so as to solve bottleneck problem of the Flexible Graphite Composites in ground connection application aspect.

Description

A kind of soft graphite is combined earthing material anticorrosion connection method
Technical field
Earthing material anticorrosion connection method, category power ground aseptic technic neck are combined the present invention relates to a kind of soft graphite Domain.
Background technology
For a long time, domestic and international Ground Network of Transmission Line with Renovation generally uses the metal class earthing materials such as band steel, stainless steel, copper, And galvanized steel, stainless steel Baogang, copper covered steel metallic ground material containing electroplated metal layer, except transport and difficulty of construction are big, easy Beyond generation steal phenomenon, the maximum bottleneck problem of metallic ground material is the corrosion of earthing material.
Soft graphite is combined earthing material, and there is acid-alkali-corrosive-resisting, non-corrosive, heavy current impact not to strike back, grounding resistance is steady It is fixed, water-fast, high-low temperature resistant, the advantages of service life is long, connection is without electrically welding, and light weight is easy to construct and transported, therefore Soft graphite is combined earthing material and increasingly paid attention to by engineers and technicians.However, in actual applications, soft graphite Compound earthing material often needs segmentation to connect or need to be connected with metal material, in junction it occur frequently that serious corrosion, leads Resistance rise even open circuit is sent a telegraph, so as to seriously limit application of the Flexible Graphite Composites in ground connection field.
The compound earthing material connection of soft graphite uses added metal sleeve pipe and crimped.It is soft under natural environment Property graphite and metal occur galvanic corrosion, graphite is used as anode as negative electrode, metal.When galvanic corrosion occurs, metal erosion speed Corrosion rate when rate is than metal individualism is much faster.In addition, its surface area is much larger than anode as the soft graphite of negative electrode Metal surface area, anode and cathode area is than bigger, and galvanic corrosion is more serious.
The content of the invention
The purpose of the present invention is that being combined earthing material there is provided a kind of soft graphite for the defect that prior art is present prevents Rotten connection method, can effectively suppress the corrosion between graphite earthing material and metal, exist so as to solve Flexible Graphite Composites It is grounded the bottleneck problem of application aspect.
Technical scheme:
The present invention coupling part of soft graphite and metal is positioned in hollow mould, fluid sealant by mould above Inlet is injected into mould cavity, and is solidified, after the demoulding, and the coupling part of soft graphite and metal is closely wrapped by fluid sealant Envelope, isolates, antiseptic effect is notable so as to realize with external environment condition.
The principle of the present invention is that corrosion occurs under environmental attack, if can isolate erosion environment, corrosion will not Can occur;The junction of soft graphite and metal is coated by encapsulating using fluid sealant, so as to isolate the corruption such as water, gas, soil Environment is lost, etch-proof purpose is reached.
The hollow mould of the inventive method, is made up of, two parts hollow mould top half and hollow mould the latter half Complete hollow mould is constituted after merging, and forms mould inside cavity, wherein hollow mould top half has fluid sealant injection Mouthful, fluid sealant inlet is connected with mould inside cavity.
The coupling part of soft graphite and metal in the inventive method, refers specifically to metal connecting piece and soft graphite is combined and connect The part of ground material connection.Soft graphite connection uses added metal sleeve pipe and crimped, and galvanic corrosion is notable herein.
Fluid sealant in the inventive method, refers to anti-corrosion fluid sealant, it is unsaturated poly- that the present invention provides two kinds of batch preparations of A, B The method of ester fluid sealant is so as to the implementation of the present invention, and wherein A fluid sealants are with 307#(Or 306#)Unsaturated polyester (UP) and 182# are not Saturated polyester is major ingredient, is produced by auxiliary material of reinforcing agent, initiator and accelerator, and B fluid sealants are poly- to be modified 191# unsaturations Ester resin is major ingredient, is produced using initiator and accelerator as auxiliary material.
Brief description of the drawings
Fig. 1 is hollow mould structural representation of the present invention;
Fig. 2 is soft graphite connection diagram of the present invention;
Fig. 3 is that soft graphite of the present invention connects schematic perspective view;
Fig. 4 is hollow mould upper and lower mould matched moulds schematic diagram of the present invention;
Fig. 5 is soft graphite connection diagram of the present invention;
Fig. 6 is Fig. 5 sectional view;
In figure, 1 is hollow mould top half;2 be hollow mould the latter half;3 be fluid sealant inlet;4 be sealing Glue;5 be metal connecting piece;6 be that soft graphite is combined earthing material;7 be mould inside cavity.
Embodiment
The present invention is described in further detail with reference to embodiment.
Hollow mould in the present embodiment is made up of hollow mould top half 1 and hollow mould the latter half 2, two parts Complete hollow mould is constituted after merging, and forms mould inside cavity 7, wherein hollow mould top half 1 has fluid sealant note Entrance 3, fluid sealant inlet 3 is connected with mould inside cavity 7.The coupling part of soft graphite and metal, refers specifically to metal company Fitting 5 and soft graphite are combined the part that earthing material 6 is connected.Soft graphite connection uses added metal sleeve pipe and pressed Connect, galvanic corrosion is notable herein.
In present embodiment, fluid sealant compounding method is as follows:
Embodiment one
The present embodiment A fluid sealants mainly include following proportionings(Pbw);
307#(Or 306#)Unsaturated polyester (UP):80
182# unsaturated polyester (UP)s:20
200 mesh silica flours:100~120
Cyclohexanone peroxide(Initiator):2~4
Cobalt naphthenate(Accelerator):2~4
Polyester, silica flour are stirred by formula, initiator is added and stirs well, finally add accelerator, side edged is stirred, until Untill stirring.It is put into after the junction of soft graphite and metal is dried into processing with hot blast in mould, then uses F types Clamp hollow mould, the fluid sealant prepared is injected in mould inside cavity 7 from inlet 3, can be taken off after 15 ~ 20min Mould.
Embodiment two
The present embodiment B fluid sealants mainly include following proportionings(Volume ratio part);
Modified 191# unsaturated polyester resins:100
Cyclohexanone peroxide(Initiator):1~2
Cobalt naphthenate(Accelerator):0.5~2
Initiator is added by formula and stirred well in polyester, finally adds accelerator, side edged is stirred, untill stirring. It is put into after the junction hot blast of soft graphite and metal is dried into processing in mould, will then with F type clamp moulds The fluid sealant prepared can be stripped from the injection mould inside of inlet 3 cavity 7 after 15 ~ 20min.
Present invention has the advantages that:The inventive method is simple and easy to operate, realizes that the junction of soft graphite and metal is wrapped Sealing is covered, is completely cut off with corrosive environment, effectively suppresses the compound corrosion between earthing material and metal of soft graphite, so as to solve soft Property graphite composite material ground connection application aspect bottleneck problem.
Implementation illustrating only for the embodiment of the present invention recited above, is not carried out to protection scope of the present invention Limit, any modifications, equivalent substitutions and improvements made on the premise of design concept of the present invention is not departed from etc. should be included in Protection scope of the present invention.

Claims (3)

1. a kind of soft graphite is combined earthing material anticorrosion connection method, it is characterised in that methods described by soft graphite with The coupling part of metal is positioned in hollow mould, and fluid sealant is injected into mould cavity by the inlet above mould, and Solidification, after the demoulding, the coupling part of soft graphite and metal by fluid sealant tight enclosing so that realize with external environment condition every From;The fluid sealant includes fluid sealant A or fluid sealant B;
The preparation method of the fluid sealant A is as follows:
Prepare material by following mass ratio:
307# unsaturated polyester (UP)s:80;
182# unsaturated polyester (UP)s:20;
200 mesh silica flours:100~120;
Cyclohexanone peroxide:2~4;
Cobalt naphthenate:2~4;
Unsaturated polyester (UP), silica flour are stirred by formula, initiator cyclohexanone peroxide is added and stirs well, finally add accelerator Cobalt naphthenate, side edged is stirred, untill stirring.
2. a kind of soft graphite is combined earthing material anticorrosion connection method according to claim 1, it is characterised in that described Fluid sealant B preparation method is as follows:
Prepare material by following mass ratio:
Modified 191# unsaturated polyester resins:100;
Cyclohexanone peroxide:1~2;
Cobalt naphthenate:0.5~2;
Initiator cyclohexanone peroxide is added by formula and stirred well in polyester resin, finally adds accelerator cobalt naphthenate, side edged Stir, untill stirring.
3. a kind of soft graphite is combined earthing material anticorrosion connection method according to claim 1, it is characterised in that described The application method of fluid sealant is:It is put into after the junction hot blast of soft graphite and metal is dried into processing in mould, then With F type clamp moulds, by the fluid sealant prepared from inlet injects mould inside cavity, it can be taken off after 15~20min Mould.
CN201510247690.5A 2015-05-15 2015-05-15 A kind of soft graphite is combined earthing material anticorrosion connection method Active CN105071063B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112768969B (en) * 2020-12-30 2022-06-28 哈尔滨工业大学 Improved lightning protection grounding device for graphite grounding body and preparation method thereof
CN112688094A (en) * 2020-12-31 2021-04-20 国网河南省电力公司南阳供电公司 Anti-corrosion down lead structure for lightning protection grounding system
CN113555700B (en) * 2021-07-28 2024-04-05 河南四达电力设备股份有限公司 Deep vertical fast-assembled graphite grounding electrode and processing technology thereof
CN114300904B (en) * 2021-12-10 2023-12-26 国网江西省电力有限公司电力科学研究院 Corrosion-resistant connecting device for flexible graphite composite grounding material and use method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1347534A2 (en) * 2002-03-19 2003-09-24 Voest-Alpine Industrieanlagenbau GmbH & Co. Connection terminal and grounding device
CN102967036A (en) * 2012-11-22 2013-03-13 山东格瑞德集团有限公司 Composite end enclosure and processing process
CN204189981U (en) * 2014-10-28 2015-03-04 武汉大学 A kind of flexible graphite compound earthing material connects gold utensil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1347534A2 (en) * 2002-03-19 2003-09-24 Voest-Alpine Industrieanlagenbau GmbH & Co. Connection terminal and grounding device
CN102967036A (en) * 2012-11-22 2013-03-13 山东格瑞德集团有限公司 Composite end enclosure and processing process
CN204189981U (en) * 2014-10-28 2015-03-04 武汉大学 A kind of flexible graphite compound earthing material connects gold utensil

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