CN103752488A - 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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- CN103752488A CN103752488A CN201410006069.5A CN201410006069A CN103752488A CN 103752488 A CN103752488 A CN 103752488A CN 201410006069 A CN201410006069 A CN 201410006069A CN 103752488 A CN103752488 A CN 103752488A
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- 239000012212 insulator Substances 0.000 title claims abstract description 36
- 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
- 238000000576 coating method Methods 0.000 title abstract description 32
- 239000011248 coating agent Substances 0.000 title abstract description 21
- 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 29
- 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
- 230000007774 longterm Effects 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
- 239000002699 waste material Substances 0.000 description 2
- 101001042415 Cratylia mollis Mannose/glucose-specific lectin Cramoll Proteins 0.000 description 1
- 102100029775 Eukaryotic translation initiation factor 1 Human genes 0.000 description 1
- 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 group 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
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000008569 process Effects 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 of the room temperature vulcanized silicone rubber antifouling flush paint that is coated on transmission line of electricity and Substation Insulator umbrella disk surface.
Background technology
In power system, using room temperature vulcanized sili cone rubber antifouling flush paint (referred to as RTV antifouling flush paint) is a kind of very important Flash Decontamination Measurements.RTV antifouling flush paint is coated in to insulator surface and can significantly improves the hydrophobicity of insulator, and then improve its pollution flashover voltage, control pollution flashover accident.But RTV antifouling flush paint being coated in the process of insulator surface, the difference of construction technology can have a great impact the final resistant level of insulator.The factors such as the distance of the mode applying, air pressure, the time of staying, spray gun and the insulator surface of spraying all can finally 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, also difference to some extent of long-term postrun migration of hydrophobicity, causes the insulator durability against pollution that adopts this kind of painting method to make also poor; In addition, existing painting method efficiency of construction is also lower, also causes the waste of coating simultaneously, and cannot guarantee construction effect.
Summary of the invention
Based on this, the object of the present invention is to provide a kind of painting method of the room temperature vulcanized silicone rubber antifouling flush paint that is coated on insulator umbrella panel surface.
The concrete technical scheme solving the problems of the technologies described above is as follows:
A kind of painting method of the room temperature vulcanized silicone rubber antifouling flush paint that is coated on insulator umbrella panel surface, use room temperature vulcanized silicone rubber antifouling flush paint to apply 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 place and convex surface place, concave surface place and steel pin homonymy, described concave surface place 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 the first convex surface place is the seam crossing of umbrella disk and steel cap, and the second convex surface place is the part between the seam crossing of umbrella disk and steel cap and outer bulge loop outside;
Described painting method comprises the following steps:
(1) clean umbrella disk;
(2) spray successively the inner side of the both sides of internal projecting ring, outer bulge loop, remainder, the first convex surface place, the second convex surface place and the outer bulge loop outside at concave surface place, the pressure of described spraying is 0.6 ± 0.1Mpa, the nozzle of spray gun and to be sprayed 's distance is 190-210mm, spray gun air-flow axial line and to be sprayed 's angle is 70-90 °, when the both sides of described spraying internal projecting ring and the inner side of outer bulge loop, in the time of staying of same position, be 1s-2s; In the time of outside remainder, the first convex surface place, the second convex surface place and the outer bulge loop at described spraying concave surface place, in the time of staying of same position, be 3s-4s; Wherein, this step (2) first sprays the concave surface place 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, when internal projecting ring both sides and outer bulge loop inner side is sprayed, the time of staying is unsuitable long, otherwise coating can flow to the remainder at concave surface place, affects spraying effect; While spraying in addition the 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, thereby make steel cap and umbrella disk junction obtain hydrophobicity, prevent from having the globule to converge in this position under rainy day or wet weather, under long term, make RTV antifouling flush paint hydrophobicity and the adhesive force at this position decline, all the other positions that do not covered by RTV antifouling flush paint of steel cap, are convenient to carry out insulator zero value detection;
(3) after surface drying, repeating step (2);
(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 to be sprayed 's distance is 180-220mm, spray gun air-flow axial line and to be sprayed 's angle is 70-90 °, during spraying, in the time of staying of same position, is 1s-2s.This step is because convex surface place has certain gradient, after the first convex surface place is sprayed, coating can flow to along the convex surface place of umbrella disk the outside of outer bulge loop, cause the paint thickness at the first convex surface place to reduce, for guaranteeing that paint thickness is even everywhere, need to the first convex surface place and the second convex surface place, spray again.
In some embodiment, described in step (2) or step (4), the pressure of spraying is 0.6Mpa therein.
Therein in some embodiment, the nozzle of spray gun described in step (2) or step (4) and to be sprayed 's distance is 200mm.
Therein in some embodiment, spray gun air-flow axial line described in step (2) or step (4) and to be sprayed 's angle is 75-85 °.
The painting method of a kind of room temperature vulcanized silicone rubber antifouling flush paint that is coated on 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, guarantee that paint thickness is consistent everywhere, effectively improve the resistant level of insulator.
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, 41, the first convex surface place, 42, the second convex surface place, 5, concave surface place, 51, outer bulge loop, 511, outer bulge loop outside, 512, outer bulge loop inner side, 52, internal projecting ring, 521, internal projecting ring both sides, 53, the remainder at concave surface place.
The specific embodiment
Below with reference to specific embodiment, the present invention will be further described.
A kind of painting method of the room temperature vulcanized silicone rubber antifouling flush paint that is coated on insulator umbrella panel surface, use room temperature vulcanized silicone rubber antifouling flush paint to apply insulator umbrella panel surface, described insulator (referring to 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 place 5 and convex surface place 4, described concave surface place 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 the first convex surface place 41 is umbrella disk 3 and the seam crossing of steel cap 1, and the second convex surface place 42 be the part between 511 outside the seam crossing of umbrella disk 3 and steel cap 1 and outer bulge loop;
Described painting method comprises the following steps:
(1) clean umbrella disk;
(2) spray successively remainder 53, the first convex surface place 41, the second convex surface place 42 and the outer bulge loop outside 511 at internal projecting ring both sides 521, outer bulge loop inner side 512, concave surface place, the pressure of described spraying is 0.6 ± 0.1Mpa, the nozzle of spray gun and to be sprayed 's distance is 190-210mm, spray gun air-flow axial line and to be sprayed 's angle is 70-90 °, when the both sides 521 of described spraying internal projecting ring and the inner side 512 of outer bulge loop, in the time of staying of same position, be 1s-2s; The remainder 53 at described spraying concave surface place, the first convex surface place 41, the second convex surface place 42 and outer bulge loop outside 511 o'clock are 3s-4s in the time of staying of same position;
Wherein, this step (2) first sprays the concave surface place 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, when internal projecting ring both sides 521 and outer bulge loop inner side 512 is sprayed, the time of staying is unsuitable long, otherwise coating can flow to the remainder 53 at concave surface place, affects spraying effect; While spraying in addition the first convex surface place 41, coating covers steel cap 1 and umbrella disk 3 coupling parts, this makes steel cap 1 and umbrella disk 3 junctions be covered by RTV antifouling flush paint, thereby make steel cap 1 and umbrella disk 3 junctions obtain hydrophobicity, prevent from having the globule to converge in this position under rainy day or wet weather, under long term, make RTV antifouling flush paint hydrophobicity and the adhesive force at this position decline, all the other positions that do not covered by RTV antifouling flush paint of steel cap, are convenient to carry out insulator zero value detection;
(3) after surface drying, repeating step (2);
(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 to be sprayed 's distance is 180-220mm, spray gun air-flow axial line and to be sprayed 's angle is 70-90 °, during spraying, in the time of staying of same position, is 1s-2s.This step is because convex surface place 4 has certain gradient, after the first convex surface place 41 is sprayed, coating can flow to along the convex surface place 4 of umbrella disk the outside 511 of outer bulge loop, cause the paint thickness at the first convex surface place 41 to reduce, for guaranteeing that paint thickness is even everywhere, need to the first convex surface place 41 and the second convex surface place 42, spray again.
Acceptance criteria after coating:
1. coating should all cover the surface of the connecting portion of umbrella disk surface and steel cap and umbrella disk, 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 (can use paper knife or rubber cutter, knife blade etc. to sample, the about 10mm × 10mm of sample size), detect thickness, and its even thickness, and be not less than 0.3mm.
Above 4 standards, the present embodiment 1 all meets, and it is qualified to apply, without carrying out coating or recoat.
According to test measured data, paint thickness is crossed coating when thin and is easily come off, and using hundred lattice cuttves to carry out in cross-hatching test, thickness is less than the coating of 0.15mm, and its cross-hatching result of the test is ISO2～ISO3; Thickness is greater than the coating of 0.23mm, and its cross-hatching result of the test is ISO1 level.
Through test, the insulator that described in employing the present embodiment, painting method makes, coating thickness is everywhere not less than 0.35mm, and more than traditional spraying coating process often can only guarantee that the thickest position (being generally outer bulge loop outside 511 and inner side 512,521 places, internal projecting ring both sides) reaches 0.3mm, and other position thickness are generally below 0.2mm, position 4 thickness of SI semi-insulation are even less than 0.1mm.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore 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 to apply 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 place and convex surface place, concave surface place 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, and the second convex surface place is the part between the seam crossing of umbrella disk and steel cap and outer bulge loop outside;
Described painting method comprises the following steps:
(1) clean umbrella disk;
(2) spray successively the outside of remainder, the first convex surface place, the second convex surface place and the outer bulge loop at inner side, the concave surface place of the both sides of internal projecting ring, outer bulge loop, the pressure of described spraying is 0.6 ± 0.1Mpa, the nozzle of spray gun and to be sprayed 's distance is 190-210mm, the angle of spray gun air-flow axial line and spray-coating surface is 70-90 °, when the both sides of described spraying internal projecting ring and the inner side of outer bulge loop, in the time of staying of same position, be 1s-2s; In the time of outside remainder, the first convex surface place, the second convex surface place and the outer bulge loop at described spraying concave surface place, in the time of staying of same position, be 3s-4s;
(3) after surface drying, repeating step (2);
(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, spray gun air-flow axial line and to be sprayed 's angle is 70-90 °, during spraying, in the time of staying of same position, is 1s-2s.
2. the painting method of the room temperature vulcanized silicone rubber antifouling flush paint that is coated on 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 of the room temperature vulcanized silicone rubber antifouling flush paint that is coated on insulator umbrella panel surface according to claim 1, 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 of the room temperature vulcanized silicone rubber antifouling flush paint that is coated on insulator umbrella panel surface according to claim 1, 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 CN103752488B (en) | 2015-03-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2015081607A1 (en) * | 2013-12-02 | 2015-06-11 | 国网山西省电力公司晋中供电公司 | Method for recoating rtv anti-pollution flashover coating on insulator coated with rtv anti-pollution 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015081607A1 (en) * | 2013-12-02 | 2015-06-11 | 国网山西省电力公司晋中供电公司 | Method for recoating rtv anti-pollution flashover coating on insulator coated with rtv anti-pollution flashover coating |
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| 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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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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