CN102324293B - Manufacturing method of full-closed arrester - Google Patents
Manufacturing method of full-closed arrester Download PDFInfo
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- CN102324293B CN102324293B CN 201110215718 CN201110215718A CN102324293B CN 102324293 B CN102324293 B CN 102324293B CN 201110215718 CN201110215718 CN 201110215718 CN 201110215718 A CN201110215718 A CN 201110215718A CN 102324293 B CN102324293 B CN 102324293B
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- core body
- core
- silicon rubber
- high temperature
- arrester
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Abstract
The invention discloses a manufacturing method of a full-closed arrester. The method comprises the following steps: taking a core into an oven and preheating at 100-150 DEG C for 1-3 hours; welding a high-temperature wire cable on the top of the preheated core, then taking the core into a mould filled with silicon rubber melt, and ensuring the core and the joint of the core and the high-temperature wire cable through silicon rubber to be completely covered; when the mould temperature is 170-200 DEG C and the pressure is 3-5 MPa, carrying out compression molding on the core with the high-temperature wire cable; performing pressure maintaining, solidifying and demoulding; and taking the demoulded product into the oven for vulcanization. The manufacturing method provided by the invention has the advantages that the height of the manufactured arrester is reduced by at least 30% compared with the prior art, and the effective creepage distance exceeds more than 50% of the normalized value; and the length of the high-temperature wire cable can be selected according to needs, and the requirements of the volume of the arrester on the height of a switch cubicle cable chamber can be solved.
Description
Technical field
What the present invention relates to is a kind of manufacture method of lightning arrester, in particular a kind of manufacture method of full-closed arrester.
Background technology
Lightning arrester is a kind of equipment that can absorb overvoltage energy, over-voltage amplitude.When overvoltage occurred, the voltage between the lightning arrester two-terminal was no more than setting, made electric equipment avoid overvoltage and damaged; After the overvoltage effect, can make again system recover rapidly normal condition.
At present the lightning arrester in 10KV to 35KV system touches the line mode and is the top of lightning arrester and bottom and ties by Luo and receive in the switch cubicle.Often volume is larger in order to meet design requirement, and its insulation margin is less, and is higher to the space requirement of switch cubicle cable vault.
Used silicon rubber solidifies on the high temperature cable in addition, and the used silicon rubber of lightning arrester body is uncured, the two is difficult to merge, in more existing technology, the mode that adopts high temperature cable and silicon rubber secondary admittedly to seal, but sealing is poor like this, and creepage distance is short, and electric property can not meet design requirement.
Summary of the invention
Goal of the invention: the invention provides a kind of manufacture method of full-closed arrester, by the improvement to the lightning arrester manufacture method, realized the totally-enclosed of product and reduced small product size.
Technical scheme: the present invention is achieved by the following technical solutions, the present invention includes following steps:
(1) core body is put into 100～150 ℃ of preheatings of baking oven 1～3 hour;
(2) the high temperature cable is welded on the top of the core body after the preheating, then core body is put into the mould that fills the silicon rubber melt, silicon rubber is coated the junction of core body and core body and high temperature cable fully;
(3) be 170～200 ℃ in mold temperature, when pressure is 3～5 MPa, will be with the core body compression molding of high temperature cable;
(4) pressurize, depanning after solidifying;
(5) product after the depanning being put into baking oven vulcanizes.
In the described step (4), the time of curing is 10～20 minutes.
Sulfuration may further comprise the steps in the described step (5):
1) with first 110～130 ℃ of sulfuration 1～2 hour in baking oven of the product after the depanning;
2) then 50～70 ℃ of sulfurations 1～2 hour;
3) last air cooling is to room temperature.
Beneficial effect: the present invention has the following advantages compared to existing technology: it has reduced at least 30% highly compared to prior art the lightning arrester that use the present invention produces; Effectively creepage distance reaches more than the 900mm, and the value of being above standard is more than 50%; The length of high temperature cable can be selected as required, has solved because of the requirement to switch cubicle cable vault height of the volume of lightning arrester; Because of decreasing insulating, creepage distance strengthens, and uses totally-enclosed product to meet design requirement fully in the high altitude localities.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is mould structure schematic diagram of the present invention.
Embodiment
The below elaborates to embodiments of the invention, and present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
Core body is high energy resistor disc zinc oxide core body in the present embodiment, as shown in Figure 1, comprise high temperature cable 1, silastic material 2, core body 3 and bottom electrode 4, wherein: high temperature cable 1 is arranged at the top of core body 3, bottom electrode 4 is arranged at the bottom of core body 3, silastic material 2 is coated on outside core body 3 and the high temperature cable 1, and high temperature cable 1 is as the top electrode of core body 3, and bottom electrode 4 is bolted on the switch cubicle.
(1) core body 3 is put into 100 ℃ of preheatings of baking oven 2 hours;
(2) high temperature cable 1 is welded on the top of the core body 3 after the preheating, then core body 3 is put into the mould that fills the silicon rubber melt, silicon rubber is coated core body 3 and core body 3 and high temperature cable 1 junction fully, carry out mold pressing by technique: as shown in Figure 2, the mould of present embodiment comprises die cavity 5, upper alignment pin 6, lower alignment pin 7, guide vane end stop 8 and locating piece 9; Wherein: upper alignment pin 6 and lower alignment pin 7 are arranged on the top of die cavity 5, guide vane end stop 8 is arranged on the bottom of die cavity 5, locating piece 9 links to each other with guide vane end stop 8, die cavity 5 is provided with attemperating unit 10, the reaction temperature that is used for observing and controlling die cavity 5, the top of die cavity 5 is provided with cable retainer 11, is used for the high temperature cable 1 on core body top is positioned.Flowability according to die cavity 5 interior silicon rubber melts, surface with core body 3 coats last layer silicon rubber first, then remove alignment pin 6, the part that silicon rubber will be blocked by upper alignment pin 6 before coats, in like manner remove again lower alignment pin 7, realization all coats upper silicon rubber with the outer surface of core body 3, and forms totally enclosed core body.
(3) be 179～181 ℃ in mold temperature, when pressure is 4 MPa, will be with core body 3 compression moldings of high temperature cable 1;
(4) depanning after 10 minutes is solidified in pressurize;
(5) product after the depanning is put into baking oven and vulcanize, sulfuration may further comprise the steps:
Sulfuration is 2 hours during 1) with inherent 120 ℃ of the product after depanning elder generation baking oven;
2) then 60 ℃ of sulfurations 2 hours;
3) last air cooling is to room temperature.
The product that present embodiment makes is the lightning rod of 10KV, and the sealing property of lightning rod is better.
Embodiment 2
The product that present embodiment makes is the lightning rod of 24KV, and present embodiment may further comprise the steps:
(1) core body 3 is put into 120 ℃ of preheatings of baking oven 2 hours;
(2) high temperature cable 1 is welded on the top of the core body 3 after the preheating, then core body 3 is put into the mould that fills the silicon rubber melt, silicon rubber is coated core body 3 and core body 3 and high temperature cable 1 junction fully, and carry out mold pressing by technique: the mould of present embodiment comprises die cavity 5, upper alignment pin 6, lower alignment pin 7, guide vane end stop 8 and locating piece 9; Wherein: upper alignment pin 6 and lower alignment pin 7 are arranged on the top of die cavity 5, guide vane end stop 8 is arranged on the bottom of die cavity 5, locating piece 9 links to each other with guide vane end stop 8, die cavity 5 is provided with attemperating unit 10, the reaction temperature that is used for observing and controlling die cavity 5, the top of die cavity 5 is provided with cable retainer 11, is used for the high temperature cable 1 on core body top is positioned.Flowability according to die cavity 5 interior silicon rubber melts, surface with core body 3 coats last layer silicon rubber first, then remove alignment pin 6, the part that silicon rubber will be blocked by upper alignment pin 6 before coats, in like manner remove again lower alignment pin 7, realization all coats upper silicon rubber with the outer surface of core body 3, and forms totally enclosed core body.
(3) be 185～187 ℃ in mold temperature, when pressure is 4 MPa, will be with core body 3 compression moldings of high temperature cable 1;
(4) pressurize, curing depanning after 15 minutes;
(5) product after the depanning is put into baking oven and vulcanize, sulfuration may further comprise the steps:
1) with first 120 ℃ of sulfuration 2 hours in baking oven of the product after the depanning;
2) then 60 ℃ of sulfurations 2 hours;
3) last air cooling is to room temperature.
Other execution modes are identical with embodiment 1, and the lightning rod height that present embodiment makes is 300mm, and far below the 450mm of standard of the same type, creepage distance reaches 900mm, the value of being above standard 600mm.
Embodiment 3
The product that present embodiment makes is the lightning rod of 35KV, and present embodiment may further comprise the steps:
(1) core body 3 is put into 150 ℃ of preheatings of baking oven 2 hours;
(2) high temperature cable 1 is welded on the top of the core body 3 after the preheating, then core body 3 is put into the mould that fills the silicon rubber melt, silicon rubber is coated core body 3 and core body 3 and high temperature cable 1 junction fully, and carry out mold pressing by technique: the mould of present embodiment comprises die cavity 5, upper alignment pin 6, lower alignment pin 7, guide vane end stop 8 and locating piece 9; Wherein: upper alignment pin 6 and lower alignment pin 7 are arranged on the top of die cavity 5, guide vane end stop 8 is arranged on the bottom of die cavity 5, locating piece 9 links to each other with guide vane end stop 8, die cavity 5 is provided with attemperating unit 10, the reaction temperature that is used for observing and controlling die cavity 5, the top of die cavity 5 is provided with cable retainer 11, is used for the high temperature cable 1 on core body top is positioned.Flowability according to die cavity 5 interior silicon rubber melts, surface with core body 3 coats last layer silicon rubber first, then remove alignment pin 6, the part that silicon rubber will be blocked by upper alignment pin 6 before coats, in like manner remove again lower alignment pin 7, realization all coats upper silicon rubber with the outer surface of core body 3, and forms totally enclosed core body.
(3) be 190～192 ℃ in mold temperature, when pressure is 4 MPa, will be with core body 3 compression moldings of high temperature cable 1;
(4) pressurize, curing depanning after 20 minutes;
(5) product after the depanning is put into baking oven and vulcanize, sulfuration may further comprise the steps:
1) with first 120 ℃ of sulfuration 2 hours in baking oven of the product after the depanning;
2) then 60 ℃ of sulfurations 2 hours;
3) last air cooling is to room temperature.
Other execution modes are identical with embodiment 1.
Claims (3)
1. the manufacture method of a full-closed arrester is characterized in that, may further comprise the steps:
(1) core body is put into 100～150 ℃ of preheatings of baking oven 1～3 hour;
(2) the high temperature cable is welded on the top of the core body after the preheating, then core body is put into the mould that fills the silicon rubber melt, silicon rubber is coated the junction of core body and core body and high temperature cable fully;
(3) be 170～200 ℃ in mold temperature, when pressure is 3～5 MPa, will be with the core body compression molding of high temperature cable;
(4) pressurize, depanning after solidifying;
(5) product after the depanning being put into baking oven vulcanizes.
2. the manufacture method of a kind of full-closed arrester according to claim 1, it is characterized in that: in the described step (4), the time of curing is 10～20 minutes.
3. the manufacture method of a kind of full-closed arrester according to claim 1 is characterized in that: sulfuration may further comprise the steps in the described step (5):
1) with first 110～130 ℃ of sulfuration 1～2 hour in baking oven of the product after the depanning;
2) then 50～70 ℃ of sulfurations 1～2 hour;
3) last air cooling is to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110215718 CN102324293B (en) | 2011-07-29 | 2011-07-29 | Manufacturing method of full-closed arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110215718 CN102324293B (en) | 2011-07-29 | 2011-07-29 | Manufacturing method of full-closed arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102324293A CN102324293A (en) | 2012-01-18 |
| CN102324293B true CN102324293B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110215718 Expired - Fee Related CN102324293B (en) | 2011-07-29 | 2011-07-29 | Manufacturing method of full-closed arrester |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216636B (en) * | 2016-08-26 | 2018-01-26 | 中国船舶重工集团公司第七二五研究所 | A kind of AlMg3 aluminium alloy vanes tip arrester low-pressure casting method |
| CN112448269B (en) * | 2019-08-30 | 2023-06-30 | 国网辽宁省电力有限公司沈阳供电公司 | Method for manufacturing a multi-chamber arrester |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280372A (en) * | 1999-07-09 | 2001-01-17 | 株式会社东芝 | Lighting arrester and its producing method |
| JP3910812B2 (en) * | 2001-09-04 | 2007-04-25 | 古河電気工業株式会社 | Lightning arrestor |
| WO2007102274A1 (en) * | 2006-03-08 | 2007-09-13 | Japan Ae Power Systems Corporation | Arrester |
-
2011
- 2011-07-29 CN CN 201110215718 patent/CN102324293B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280372A (en) * | 1999-07-09 | 2001-01-17 | 株式会社东芝 | Lighting arrester and its producing method |
| JP3910812B2 (en) * | 2001-09-04 | 2007-04-25 | 古河電気工業株式会社 | Lightning arrestor |
| WO2007102274A1 (en) * | 2006-03-08 | 2007-09-13 | Japan Ae Power Systems Corporation | Arrester |
Non-Patent Citations (1)
| Title |
|---|
| JP特许第3910812B2 2007.04.25 |
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| CN102324293A (en) | 2012-01-18 |
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