CN103752488B - Method for coating room temperature vulcanized silicone rubber anti-pollution flashover coatings on surfaces of umbrella disc of insulator - Google Patents
Method for coating room temperature vulcanized silicone rubber anti-pollution flashover coatings on surfaces of umbrella disc of insulator Download PDFInfo
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- CN103752488B CN103752488B CN201410006069.5A CN201410006069A CN103752488B CN 103752488 B CN103752488 B CN 103752488B CN 201410006069 A CN201410006069 A CN 201410006069A CN 103752488 B CN103752488 B CN 103752488B
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- 238000000576 coating method Methods 0.000 title claims abstract description 36
- 239000012212 insulator Substances 0.000 title claims abstract description 36
- 239000011248 coating agent Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 20
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000005507 spraying Methods 0.000 claims abstract description 30
- 239000003973 paint Substances 0.000 claims description 35
- 230000003373 anti-fouling effect Effects 0.000 claims description 29
- 239000007921 spray Substances 0.000 claims description 29
- 238000010422 painting Methods 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 101001042415 Cratylia mollis Mannose/glucose-specific lectin Cramoll Proteins 0.000 description 1
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- 101001012787 Homo sapiens Eukaryotic translation initiation factor 1 Proteins 0.000 description 1
- 101000643378 Homo sapiens Serine racemase Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- AIXMJTYHQHQJLU-UHFFFAOYSA-N chembl210858 Chemical compound O1C(CC(=O)OC)CC(C=2C=CC(O)=CC=2)=N1 AIXMJTYHQHQJLU-UHFFFAOYSA-N 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 238000013508 migration Methods 0.000 description 1
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Abstract
The invention discloses a method for coating room temperature vulcanized silicone rubber anti-pollution flashover coatings on the surfaces of an umbrella disc of an insulator. The RTV (room temperature vulcanized) silicone rubber anti-pollution flashover coatings are coated on the surfaces of the umbrella disc of the insulator by the method. The insulator comprises a steel cap, a steel leg and the umbrella disc. The umbrella disc is fixed to a position between the steel leg and the steel cap; the umbrella disc comprises a concave surface and convex surfaces, an outer convex ring and at least one inner convex ring are arranged on the concave surface, the convex surfaces include a first convex surface and a second convex surface, a joint of the umbrella disc and the steel cap is arranged on the first convex surface, and a portion which is positioned between the outer side of the outer convex ring and the joint of the umbrella disc and the steel cap is arranged on the second convex surface. The method includes sequentially spraying the coatings on two sides of each inner convex ring, the inner side of the outer convex ring, the other portions of the concave surface, the first convex surface, the second convex surface and the outer side of the outer convex ring; implementing the previous step again after the coatings on the surfaces are dried; spraying the coatings on the first convex surface and the second convex surface after the coatings on the surfaces are dried. The method has the advantages that wastage of the coatings can be effectively reduced, the bonding strength of the coatings on the surfaces of the insulator can be improved, the consistency of the thicknesses of the coatings can be guaranteed, and the pollution-resistant level of the insulator can be enhanced.
Description
Technical field
The present invention relates to antifouling flush paint field, particularly relate to a kind of painting method being coated on the room temperature vulcanized silicone rubber antifouling flush paint on transmission line of electricity and Substation Insulator umbrella disk surface.
Background technology
In power system, room temperature vulcanized sili cone rubber antifouling flush paint (referred to as RTV antifouling flush paint) is used to be a kind of very important Flash Decontamination Measurements.RTV antifouling flush paint is coated in the hydrophobicity that insulator surface can significantly improve insulator, and then improves its pollution flashover voltage, control pollution flashover accident.But be coated in the process of insulator surface by RTV antifouling flush paint, the difference of construction technology can have a great impact the resistant level that insulator is final.The factors such as the distance of the mode of coating, the air pressure of spraying, the time of staying, spray gun and insulator surface all finally can have influence on the construction effect of RTV antifouling flush paint, and then affect the resistant level of insulator.But, the painting method of existing room temperature vulcanized silicone rubber antifouling flush paint, the uneven thickness of coating everywhere, this can cause the adhesive force difference to some extent of different parts antifouling flush paint, migration of hydrophobicity after longtime running also difference to some extent, causes the insulator durability against pollution adopting this kind of painting method obtained also poor; In addition, existing painting method efficiency of construction is also lower, also causes the waste of coating simultaneously, and cannot ensure construction effect.
Summary of the invention
Based on this, the object of the present invention is to provide a kind of painting method being coated on the room temperature vulcanized silicone rubber antifouling flush paint of insulator umbrella panel surface.
The concrete technical scheme solved the problems of the technologies described above is as follows:
A kind of painting method being coated on the room temperature vulcanized silicone rubber antifouling flush paint of insulator umbrella panel surface, use room temperature vulcanized silicone rubber antifouling flush paint coating insulator umbrella panel surface, described insulator comprises steel cap, steel pin and umbrella disk, and described umbrella disk is fixed between steel pin and steel cap; Described umbrella disk comprises concave surface and convex surface place, concave surface and steel pin homonymy, described concave surface is provided with outer bulge loop and at least one internal projecting ring, described convex surface place comprises the first convex surface place and the second convex surface place, described first convex surface place is the seam crossing of umbrella disk and steel cap, the second convex surface place be outside the seam crossing of umbrella disk and steel cap and outer bulge loop between part;
Described painting method comprises the following steps:
(1) umbrella disk is cleaned;
(2) spray outside the both sides of internal projecting ring, the inner side of outer bulge loop, the remainder of concave surface, the first convex surface place, the second convex surface place and outer bulge loop successively, the pressure of described spraying is 0.6 ± 0.1Mpa, the nozzle of spray gun and the distance of to be sprayed are 190-210mm, the angle of spray gun air-flow axial line and to be sprayed is 70-90 °, during the inner side of the both sides of described spraying internal projecting ring and outer bulge loop, be 1s-2s in the time of staying of same position; Time outside the remainder of described spraying concave surface, the first convex surface place, the second convex surface place and outer bulge loop, be 3s-4s in the time of staying of same position; Wherein, this step (2) first sprays the concave surface of umbrella disk, then sprays convex surface place, is easy to like this judge whether umbrella disk surface is covered by room temperature vulcanized silicone rubber antifouling flush paint; In addition, to when spraying inside internal projecting ring both sides and outer bulge loop, the time of staying is unsuitable long, otherwise coating can flow to the remainder of concave surface, affects spraying effect; When also having spraying first convex surface place, coating covers steel cap and umbrella disk coupling part, this makes steel cap and umbrella disk junction be covered by RTV antifouling flush paint, thus make steel cap and umbrella disk junction obtain hydrophobicity, prevent under rainy day or wet weather, have the globule to converge in this position, make the RTV antifouling flush paint hydrophobicity at this position and adhesive force decline under long term, steel cap all the other not by the position that RTV antifouling flush paint covers, be convenient to carry out insulator zero value detection;
(3) after surface drying, step (2) is repeated;
(4) after surface drying, spray the first convex surface place and the second convex surface place, the pressure of described spraying is 0.6 ± 0.1Mpa, the nozzle of spray gun and the distance of to be sprayed are 180-220mm, the angle of spray gun air-flow axial line and to be sprayed is 70-90 °, is 1s-2s in the time of staying of same position during spraying.This step is because convex surface place has certain gradient, after first convex surface place is sprayed, coating can flow to the outside of outer bulge loop along the convex surface place of umbrella disk, the paint thickness at the first convex surface place is caused to reduce, for ensureing that paint thickness is even, needs to spray the first convex surface place and the second convex surface place more everywhere.
Wherein in some embodiments, described in step (2) or step (4), the pressure of spraying is 0.6Mpa.
Wherein in some embodiments, described in step (2) or step (4), the nozzle of spray gun and the distance of to be sprayed are 200mm.
Wherein in some embodiments, the angle of spray gun air-flow axial line described in step (2) or step (4) and to be sprayed is 75-85 °.
A kind of painting method being coated on the room temperature vulcanized silicone rubber antifouling flush paint of insulator umbrella panel surface of the present invention has the following advantages and beneficial effect: described painting method effectively reduces the waste of coating, improve the adhesive force of coating at insulator surface, ensure that paint thickness is consistent, effectively improves the resistant level of insulator everywhere.
Accompanying drawing explanation
Fig. 1 is insulator structure schematic diagram of the present invention;
Description of reference numerals
1, steel cap, 2, steel pin, 3, umbrella disk, 4, convex surface place, the 41, first convex surface place, 42, the second convex surface place, 5, concave surface, 51, outer bulge loop, 511, outside outer bulge loop, 512, inside outer bulge loop, 52, internal projecting ring, 521, internal projecting ring both sides, 53, the remainder of concave surface.
Detailed description of the invention
Below with reference to specific embodiment, the present invention will be further described.
Embodiment 1
A kind of painting method being coated on the room temperature vulcanized silicone rubber antifouling flush paint of insulator umbrella panel surface, use room temperature vulcanized silicone rubber antifouling flush paint coating insulator umbrella panel surface, described insulator (see Fig. 1) comprises steel cap 1, steel pin 2 and umbrella disk 3, and described umbrella disk 3 is fixed between steel cap 2 and steel pin 3; Described umbrella disk 3 comprises concave surface 5 and convex surface place 4, described concave surface 5 is provided with outer bulge loop 51 and at least one internal projecting ring 52, described convex surface place 4 comprises the first convex surface place 41 and the second convex surface place 42, described first convex surface place 41 is umbrella disk 3 and the seam crossing of steel cap 1, and the second convex surface place 42 is the part outside the seam crossing of umbrella disk 3 and steel cap 1 and outer bulge loop between 511;
Described painting method comprises the following steps:
(1) umbrella disk is cleaned;
(2) internal projecting ring both sides 521 are sprayed successively, inside outer bulge loop 512, outside remainder 53, the first convex surface place 42 of convex surface place 41, second of concave surface and outer bulge loop 511, the pressure of described spraying is 0.6 ± 0.1Mpa, the nozzle of spray gun and the distance of to be sprayed are 190-210mm, the angle of spray gun air-flow axial line and to be sprayed is 70-90 °, during the inner side 512 of the both sides 521 of described spraying internal projecting ring and outer bulge loop, be 1s-2s in the time of staying of same position; Outside remainder 53, the first convex surface place 42 of convex surface place 41, second of described spraying concave surface and outer bulge loop 511 time, be 3s-4s in the time of staying of same position;
Wherein, this step (2) first sprays the concave surface 5 of umbrella disk 3, then sprays convex surface place 4, is easy to like this judge whether umbrella disk surface is covered by room temperature vulcanized silicone rubber antifouling flush paint; In addition, to inside internal projecting ring both sides 521 and outer bulge loop 512 spray time, the time of staying is unsuitable long, otherwise coating can flow to the remainder 53 of concave surface, affects spraying effect; When also having spraying first convex surface place 41, coating covers steel cap 1 and umbrella disk 3 coupling part, this makes steel cap 1 and umbrella disk 3 junction be covered by RTV antifouling flush paint, thus make steel cap 1 and umbrella disk 3 junction obtain hydrophobicity, prevent under rainy day or wet weather, have the globule to converge in this position, make the RTV antifouling flush paint hydrophobicity at this position and adhesive force decline under long term, steel cap all the other not by the position that RTV antifouling flush paint covers, be convenient to carry out insulator zero value detection;
(3) after surface drying, step (2) is repeated;
(4) after surface drying, spray the first convex surface place 41 and the second convex surface place 42, the pressure of described spraying is 0.6 ± 0.1Mpa, the nozzle of spray gun and the distance of to be sprayed are 180-220mm, the angle of spray gun air-flow axial line and to be sprayed is 70-90 °, is 1s-2s in the time of staying of same position during spraying.This step is because convex surface place 4 has certain gradient, after first convex surface place 41 is sprayed, coating can flow to the outside 511 of outer bulge loop along the convex surface place 4 of umbrella disk, the paint thickness at the first convex surface place 41 is caused to reduce, for ensureing that paint thickness is even, needs to spray the first convex surface place 41 and the second convex surface place 42 more everywhere.
Acceptance criteria after coating:
1. the surface of connecting portion of umbrella disk surface and steel cap and umbrella disk should all cover by coating, must not have holiday position;
2. coating surface can not have accumulation, hanging wire, trickling phenomenon;
3. coating surface should keep smooth, must not have macroscopic out-of-flatness phenomenon;
4. inside pair insulator upper surface, sample samples (paper knife or rubber cutter, knife blade etc. can be used to sample, and sample size is about 10mm × 10mm), detect thickness, and its thickness is even, and is not less than 0.3mm.
Above 4 standards, the present embodiment 1 is all satisfied, and it is qualified to apply, without the need to carrying out coating or recoat.
According to test measured data, when paint thickness is crossed thin, coating easily comes off, and carry out in cross-hatching test at use cross-cut tester, thickness is less than the coating of 0.15mm, and its crosscut adhesion test result is ISO2 ~ ISO3; Thickness is greater than the coating of 0.23mm, and its crosscut adhesion test result is then ISO1 level.
Through test, adopt the insulator that described in the present embodiment, painting method is obtained, coating thickness is everywhere not less than 0.35mm, and traditional spraying coating process often can only ensure the thickest position (to be generally outside outer bulge loop 511 and inner side 512, internal projecting ring both sides 521 place) reach more than 0.3mm, and other part thickness are generally at below 0.2mm, position 4 thickness of SI semi-insulation is even less than 0.1mm.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (4)
1. one kind is coated on the painting method of the room temperature vulcanized silicone rubber antifouling flush paint of insulator umbrella panel surface, it is characterized in that, use room temperature vulcanized silicone rubber antifouling flush paint coating insulator umbrella panel surface, described insulator comprises steel cap, steel pin and umbrella disk, and umbrella disk is fixed between steel pin and steel cap; Umbrella disk comprises concave surface and convex surface place, concave surface is provided with outer bulge loop and at least one internal projecting ring, convex surface place comprises the first convex surface place and the second convex surface place, and the first convex surface place is the seam crossing of umbrella disk and steel cap, the second convex surface place be outside the seam crossing of umbrella disk and steel cap and outer bulge loop between part;
Described painting method comprises the following steps:
(1) umbrella disk is cleaned;
(2) spray successively the both sides of internal projecting ring, outer bulge loop inner side, except outside bulge loop outside the remainder of concave surface, the first convex surface place, the second convex surface place and outer bulge loop outside, the pressure of described spraying is 0.6 ± 0.1Mpa, the nozzle of spray gun and the distance of to be sprayed are 190-210mm, the angle of spray gun air-flow axial line and spray-coating surface is 70-90 °, during the inner side of the both sides of described spraying internal projecting ring and outer bulge loop, be 1s-2s in the time of staying of same position; The remainder of described spraying concave surface, the first convex surface place and the second convex surface place time, be 3s-4s in the time of staying of same position;
(3) after surface drying, step (2) is repeated;
(4) after surface drying, spray the first convex surface place and the second convex surface place, the pressure of described spraying is 0.6 ± 0.1Mpa, the nozzle of spray gun and the distance of spray-coating surface are 180-220mm, the angle of spray gun air-flow axial line and to be sprayed is 70-90 °, is 1s-2s in the time of staying of same position during spraying.
2. the painting method being coated on the room temperature vulcanized silicone rubber antifouling flush paint of insulator umbrella panel surface according to claim 1, is characterized in that, described in step (2) or step (4), the pressure of spraying is 0.6Mpa.
3. the painting method being coated on the room temperature vulcanized silicone rubber antifouling flush paint of insulator umbrella panel surface according to claim 1, it is characterized in that, described in step (2) or step (4), the nozzle of spray gun and the distance of spray-coating surface are 200mm.
4. the painting method being coated on the room temperature vulcanized silicone rubber antifouling flush paint of insulator umbrella panel surface according to claim 1, it is characterized in that, described in step (2) or step (4), the angle of spray gun air-flow axial line and spray-coating surface is 75-85 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006069.5A CN103752488B (en) | 2014-01-06 | 2014-01-06 | Method for coating room temperature vulcanized silicone rubber anti-pollution flashover coatings on surfaces of umbrella disc of insulator |
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| CN201410006069.5A CN103752488B (en) | 2014-01-06 | 2014-01-06 | Method for coating room temperature vulcanized silicone rubber anti-pollution flashover coatings on surfaces of umbrella disc of insulator |
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| CN103752488B true CN103752488B (en) | 2015-03-18 |
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| CN103736645B (en) * | 2013-12-02 | 2015-02-18 | 国网山西省电力公司晋中供电公司 | RTV anti-pollution flashover coating recoating method of insulator coated with RTV anti-pollution flashover coating |
| CN104128304A (en) * | 2014-08-20 | 2014-11-05 | 国家电网公司 | Method for coating post insulator with RTV anti-contamination flashover coating |
| CN106220877A (en) * | 2016-08-18 | 2016-12-14 | 强新正品（苏州）环保材料科技有限公司 | A kind of cleaning method of silica gel sheet material |
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| JP2915834B2 (en) * | 1995-10-31 | 1999-07-05 | 日本碍子株式会社 | Suspension insulator for electrical insulation and method of manufacturing the same |
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| CN100998974A (en) * | 2007-01-05 | 2007-07-18 | 福州大学 | Spraying process and spraying device for surface coating of high-voltage insulator |
| CN102513284A (en) * | 2011-12-11 | 2012-06-27 | 河南省电力公司平顶山供电公司 | Coating method for insulator antifouling flashover coating |
| CN102618138A (en) * | 2012-03-06 | 2012-08-01 | 清华大学深圳研究生院 | Room-temperature type power insulator anti-fouling flashover paint, preparation method thereof and power insulator |
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2014
- 2014-01-06 CN CN201410006069.5A patent/CN103752488B/en active Active
Patent Citations (7)
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| JP2915834B2 (en) * | 1995-10-31 | 1999-07-05 | 日本碍子株式会社 | Suspension insulator for electrical insulation and method of manufacturing the same |
| JPH09259677A (en) * | 1996-03-25 | 1997-10-03 | Ngk Insulators Ltd | Glazing method for suspension insulator |
| JPH11273486A (en) * | 1998-03-19 | 1999-10-08 | Ngk Insulators Ltd | Glazing method on outer face of insulator |
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| CN100998974A (en) * | 2007-01-05 | 2007-07-18 | 福州大学 | Spraying process and spraying device for surface coating of high-voltage insulator |
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Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Patentee after: GRADUATE SCHOOL AT SHENZHEN, TSINGHUA University Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. Patentee before: Graduate School at Shenzhen, Tsinghua University |
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Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Co-patentee after: Tsinghua Shenzhen International Graduate School Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Co-patentee before: GRADUATE SCHOOL AT SHENZHEN, TSINGHUA University Patentee before: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd. |
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