CN108501273A - A kind of adaptive dissipation disc insulator production technology of charge - Google Patents

A kind of adaptive dissipation disc insulator production technology of charge Download PDF

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Publication number
CN108501273A
CN108501273A CN201710101941.8A CN201710101941A CN108501273A CN 108501273 A CN108501273 A CN 108501273A CN 201710101941 A CN201710101941 A CN 201710101941A CN 108501273 A CN108501273 A CN 108501273A
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CN
China
Prior art keywords
cast
stage
disc insulator
batch mixing
adaptive
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.)
Pending
Application number
CN201710101941.8A
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Chinese (zh)
Inventor
何金良
李传扬
胡军
张波
余占清
李琦
林川杰
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Tsinghua University
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Tsinghua University
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Tsinghua University filed Critical Tsinghua University
Priority to CN201710101941.8A priority Critical patent/CN108501273A/en
Publication of CN108501273A publication Critical patent/CN108501273A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/10Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/021Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22Component parts, details or accessories; Auxiliary operations
    • B29C39/42Casting under special conditions, e.g. vacuum

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

A kind of adaptive dissipation disc insulator production technology of charge, including cast preparation stage, mixing step, cast stage, discharging stage, the cast preparation stage, cast stage, discharging stage carry out successively, and the mixing step is carried out at the same time with the cast preparation stage.Advantage is:Repeatedly cast can be achieved, meet the production needs of the adaptive dissipation disc insulator of charge.

Description

A kind of adaptive dissipation disc insulator production technology of charge
Technical field
The present invention relates to disc insulator production technology field, the benzvalene form of the adaptive dissipation function of especially a kind of charge is exhausted The production technology of edge.
Background technology
Gas-insulated metal closed power transmission line (GIL) is big with transmission capacity, it is friendly that small, safe and environment is lost Well equal various features are the effective means transmitted for the electric energy of large capacity, long range.Transmission of electricity corridor is intensive, strategically located and difficult of access landforms, Under the particular surroundings such as rivers,lakes and seas, gas-insulated metal-enclosed circuit then becomes being preferably selected for electrical energy transportation.Currently, gas is exhausted Although edge metal closed power transmission line has worldwide gradually been used widely, however, main application is in exchange In power grid, and the application of GIL is rarely reported in DC transmission system.In recent years, there are many manufacturers in the world, such as Mitsubishi, Toshiba, Germany's electric power esbablished corporation such as Siemens and Switzerland ABB have all been carried out around direct current GIL and have been ground in succession Work is sent out, but is showed no formal commercial operation report, main reason is that long-term work is under high voltage direct current environment, GIL Disc insulator surface in equipment has the accumulation of charge, this original electric field that will distort causes insulating part flashover voltage notable It reduces.Currently, with the fast development of China's high voltage direct current transmission project, the demand to direct current GIL equipment is increasingly urgent to, in The research of surface charge accumulation characteristic and control measure of portion's insulating part under high voltage direct current has become various countries electric power research personnel One of hot issue of research.
The high voltage direct current disc insulator of the adaptive dissipation function of charge can pass through when adaptive area's resistivity declines Insulating regions resistivity remains unchanged, this will keep disc insulator still to have higher insulating properties.
But adaptively the basin-type insulator structure of dissipation function is different from common insulator for charge, in production, needs It is poured into a mould twice, and the formula poured into a mould twice is different, so existing production technology cannot achieve charge and adaptively dissipate function Disc insulator production.
Invention content
The purpose of the present invention is to solve the above problems, devise a kind of charge adaptively dissipation disc insulator production Technique.Specifically design scheme is:
A kind of charge adaptively dissipation disc insulator production technology, including cast preparation stage, mixing step, cast rank Section, discharging stage, the cast preparation stage, cast stage, discharging stage carry out successively, the mixing step and the cast Preparation stage is carried out at the same time, and the mixing step includes the first batch mixing step, the second batch mixing step, and the cast stage includes one Secondary cast, second pouring, the material that the first batch mixing step stage obtains are used for once-cast, the second batch mixing step institute The material of acquisition is used for second pouring.
The preparation stage includes mold preheating, inserts preheating, component filling, and the mold preheating, inserts preheating are simultaneously It carries out, component filling is carried out after the completion of the mold preheating, inserts preheating.
In the first batch mixing step, addition raw material is epoxy resin, filler material A, curing agent, the second batch mixing step In, addition raw material is epoxy resin, filler material B, curing agent.
The discharging stage includes demoulding step, cures three times, packs molding, and the demoulding step cures, packs three times Molding carries out successively, the integrally curing for being cured as disc insulator three times after the demoulding step.
In the cast stage, one-step solidification, moving step, secondary curing are carried out after the completion of once-cast successively.
The one-step solidification step is the primary solidification of batch mixing obtained by the first batch mixing step, and the secondary curing is institute State the primary solidification step of batch mixing obtained by the second batch mixing step.
In the moving step, by mold, inserts, the disc insulator after level-one is poured into a mould from once-cast device therefor Place is moved at the second pouring device therefor.
The adaptive dissipation disc insulator production technology of the charge that above-mentioned technical proposal through the invention obtains is beneficial Effect is:
Repeatedly cast can be achieved, meet the production needs of the adaptive dissipation disc insulator of charge.
Description of the drawings
Fig. 1 is the flow functional block diagram of the adaptive dissipation disc insulator production technology of charge of the present invention;
Fig. 2 is the structural schematic diagram of the adaptive dissipation disc insulator production technology mould therefor of charge of the present invention;
In figure:A, a mouthful a is poured;B, a mouthful b is poured.
Specific implementation mode
The present invention is specifically described below in conjunction with the accompanying drawings.
Fig. 1 is the flow functional block diagram of the adaptive dissipation disc insulator production technology of charge of the present invention, such as Fig. 1 institutes Show, a kind of adaptive dissipation disc insulator production technology of charge, including the cast preparation stage, mixing step, the cast stage, goes out Material stage, the cast preparation stage, cast stage, discharging stage carry out successively, and the mixing step prepares with the cast Stage is carried out at the same time, and the mixing step includes the first batch mixing step, the second batch mixing step, and the cast stage includes once pouring Note, second pouring, the material that the first batch mixing step stage obtains are used for once-cast, and the second batch mixing step is obtained Material be used for second pouring.
The preparation stage includes mold preheating, inserts preheating, component filling, and the mold preheating, inserts preheating are simultaneously It carries out, component filling is carried out after the completion of the mold preheating, inserts preheating.
In the first batch mixing step, addition raw material is epoxy resin, filler material A, curing agent, the second batch mixing step In, addition raw material is epoxy resin, filler material B, curing agent.
The discharging stage includes demoulding step, cures three times, packs molding, and the demoulding step cures, packs three times Molding carries out successively, the integrally curing for being cured as disc insulator three times after the demoulding step.
In the cast stage, one-step solidification, moving step, secondary curing are carried out after the completion of once-cast successively
The one-step solidification step is the primary solidification of batch mixing obtained by the first batch mixing step, and the secondary curing is institute State the primary solidification step of batch mixing obtained by the second batch mixing step.
In the moving step, by mold, inserts, the disc insulator after level-one is poured into a mould from once-cast device therefor Place is moved at the second pouring device therefor.
Embodiment 1
Fig. 2 is the structural schematic diagram of the adaptive dissipation disc insulator production technology mould therefor of charge of the present invention, As shown in Fig. 2, in casting process, after industrial epoxy resin is mixed respectively with adaptive special type filler A and filler B, injection It is mixed under vacuum in two pouring cans, step is respectively according to existing epoxy group alumina composite material insulating part Industry cast requires to carry out, and is added after curing agent stirring, epoxy group filler material A composite materials are poured into mold first, After liquid level reaches insulation zone position, capping plate is taken out, first time solidification is carried out:
Solidification 4.5 hours for the first time, then place into vacuum pouring case and vacuumize, and carrying out second in inside pours into a mould, because It is vacuum pouring for this, without worrying that the inside has bubble, so only needing to be poured into a mould from a mouthfuls, cast, which is over, to be taken out Come, a mouthfuls are blocked, then mold is holded up, upper auxiliary point filler can carry out secondary curing at 4 mouthfuls.
Embodiment 2
First lower half portion mold is kept flat, after placing inserts, at casting insulated area to arrow after, cover top half lid Plate, being put into 130 DEG C of solidifications of incubator, (filler can become sticky at this time, and this makes it possible to ensure next to pour into a mould adaptive area in 4 hours In the process, two kinds of fillers will not mixing);
Take out mold, from a mouthful the adaptive area's cast of progress (at this time should be padded 1 centimetre or so by mold at sprue gate, this Sample can ensure not accumulate in underface after filler stream is entered and cause to block), it at a mouthfuls is poured into liquid level and rises to and cover After the b of sprue gate, a mouthfuls are blocked with plug, mold is holded up and comes (being rotated by 90 ° counterclockwise), continues to be poured into end from b mouthfuls. It may insure that two kinds of region fillers will not mutually melt in casting process in this way, and can guarantee the two binding site mechanical performance again.
Then mold is moved to below special material sprue gate and carries out special material cast.Special material uses asphalt mixtures modified by epoxy resin Aliphatic radical filler material B systems, are mixed by certain proportion.Mold after cast is transferred to incubator, is carried out according to industrial requirements It demoulds, is finally demoulded, and carry out third time solidification after secondary curing molding.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art The principle of the present invention is embodied to some variations that some of which part may be made, belongs to the scope of protection of the present invention it It is interior.

Claims (7)

1. a kind of charge adaptively dissipation disc insulator production technology, including cast preparation stage, mixing step, cast rank Section, discharging stage, the cast preparation stage, cast stage, discharging stage carry out successively, the mixing step and the cast Preparation stage is carried out at the same time, which is characterized in that the mixing step includes the first batch mixing step, the second batch mixing step, described to pour The note stage includes once-cast, second pouring, and the material that the first batch mixing step stage obtains is used for once-cast, and described the The material that two batch mixing steps are obtained is used for second pouring.
2. according to the adaptive dissipation disc insulator production technology of the charge described in claim 1, which is characterized in that the standard The standby stage includes mold preheating, inserts preheating, component filling, and the mold preheating, inserts preheating are carried out at the same time, and the mold is pre- Component filling is carried out after the completion of heat, inserts preheating.
3. according to the adaptive dissipation disc insulator production technology of the charge described in claim 1, which is characterized in that described In one batch mixing step, addition raw material is epoxy resin, filler material A, curing agent, and in the second batch mixing step, addition raw material is Epoxy resin, filler material B, curing agent.
4. according to the adaptive dissipation disc insulator production technology of the charge described in claim 1, which is characterized in that it is described go out The material stage includes demoulding step, cures three times, packs molding, and the demoulding step, three times solidification, packaging molding carry out successively, The integrally curing for being cured as disc insulator three times after the demoulding step.
5. according to the adaptive dissipation disc insulator production technology of the charge described in claim 2, which is characterized in that described to pour In the note stage, one-step solidification, moving step, secondary curing are carried out after the completion of once-cast successively.
6. according to the adaptive dissipation disc insulator production technology of the charge described in claim 5, which is characterized in that described one Secondary curing schedule is the primary solidification of batch mixing obtained by the first batch mixing step, and the secondary curing is the second batch mixing step The primary solidification step of gained batch mixing.
7. according to the adaptive dissipation disc insulator production technology of the charge described in claim 5, which is characterized in that the shifting In dynamic step, mold, inserts, the disc insulator after level-one is poured into a mould are moved to described two from once-cast device therefor At secondary cast device therefor.
CN201710101941.8A 2017-02-24 2017-02-24 A kind of adaptive dissipation disc insulator production technology of charge Pending CN108501273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201710101941.8A CN108501273A (en) 2017-02-24 2017-02-24 A kind of adaptive dissipation disc insulator production technology of charge

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Publication Number Publication Date
CN108501273A true CN108501273A (en) 2018-09-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112847999A (en) * 2021-01-07 2021-05-28 迈杰科输配电设备江苏有限公司 Dynamic pouring process of epoxy resin basin-type insulator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004335390A (en) * 2003-05-12 2004-11-25 Hitachi Ltd Cone type insulation spacer
CN102211375A (en) * 2011-05-26 2011-10-12 麦克奥迪(厦门)电气股份有限公司 Method for producing insulator or contact box with temperature and/or voltage sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004335390A (en) * 2003-05-12 2004-11-25 Hitachi Ltd Cone type insulation spacer
CN102211375A (en) * 2011-05-26 2011-10-12 麦克奥迪(厦门)电气股份有限公司 Method for producing insulator or contact box with temperature and/or voltage sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112847999A (en) * 2021-01-07 2021-05-28 迈杰科输配电设备江苏有限公司 Dynamic pouring process of epoxy resin basin-type insulator

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Application publication date: 20180907

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