CN104289396B - A kind of method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment - Google Patents
A kind of method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment Download PDFInfo
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- CN104289396B CN104289396B CN201410232882.4A CN201410232882A CN104289396B CN 104289396 B CN104289396 B CN 104289396B CN 201410232882 A CN201410232882 A CN 201410232882A CN 104289396 B CN104289396 B CN 104289396B
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000005246 galvanizing Methods 0.000 title claims abstract description 51
- 230000003260 anti-sepsis Effects 0.000 title claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000003973 paint Substances 0.000 claims abstract description 21
- 239000004593 Epoxy Substances 0.000 claims abstract description 20
- 229910052742 iron Inorganic materials 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 12
- 239000013527 degreasing agent Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000005237 degreasing agent Methods 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 5
- 150000002191 fatty alcohols Chemical class 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 5
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 5
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 4
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 9
- 230000001070 adhesive effect Effects 0.000 abstract description 9
- 239000011248 coating agent Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000008439 repair process Effects 0.000 abstract description 6
- 238000002955 isolation Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 238000012797 qualification Methods 0.000 abstract description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002421 anti-septic effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 14
- 239000011701 zinc Substances 0.000 description 14
- 229910052725 zinc Inorganic materials 0.000 description 13
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 9
- 238000010422 painting Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000005238 degreasing Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 229940040145 liniment Drugs 0.000 description 3
- 239000000865 liniment Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 238000005829 trimerization reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- 206010003645 Atopy Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- UOURRHZRLGCVDA-UHFFFAOYSA-D pentazinc;dicarbonate;hexahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Zn+2].[Zn+2].[Zn+2].[Zn+2].[Zn+2].[O-]C([O-])=O.[O-]C([O-])=O UOURRHZRLGCVDA-UHFFFAOYSA-D 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Coating With Molten Metal (AREA)
Abstract
A kind of method that the invention discloses hot galvanizing piece heavy antisepsis for high-voltage electrical equipment, comprises the following steps: 1) take pending hot galvanizing piece, carry out weak base defat, surface coarsening process successively；2) taking the hot galvanizing piece after surface coarsening processes, surface spraying epoxy micaceous iron intermediate coat, levelling is also dried, and forms prime coat；3) after primer coat surface being carried out sanded treatment, spraying weatherability finish paint, levelling is also dried, and forms top coat layer.The method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment of the present invention, solve the problem that in the most anti-region, between ferrous metal parts hot galvanized layer and isolation coating, adhesion is poor, technique is simple, easy to operate, improve qualification rate and the production efficiency of part, reduce repair rate and the production cost of part；Between film and the hot galvanized layer of gained heavy antisepsis part, adhesive force is strong, and film difficult drop-off improves antiseptic property, extends its service life in heavy antisepsis region.
Description
Technical field
The invention belongs to surface antiseptisis technology field, be specifically related to a kind of hot galvanizing piece heavy antisepsis for high-voltage electrical equipment
Method.
Background technology
Galvanizing or galvanizing by dipping are also in galvanizing, are that the steel part after eliminating rust immerses in melted zinc liquid, make steel piece surface attached
Zinc layers, thus play antiseptical purpose.Hot galvanized layer typically more than 35 μm, even as high as 200 μm；Covering power
Good, plated layer compact, it is mingled with without Organic substance.The weather-resistant mechanism of zinc coat has mechanical protection and electrochemical protection, greatly
Under the conditions of gas corrosion, there are ZnO, Zn (OH) in zinc layers surface2And basic zinc carbonate protecting film, slow down the corrosion of zinc to a certain extent,
This protecting film can be formed again new protecting film by destroying；When zinc layers is destroyed serious, and when jeopardizing iron-based body, matrix is produced by zinc
Electrochemical protection, the normal potential-0.76V of zinc, the normal potential-0.44V of ferrum, when zinc forms micro cell with ferrum, zinc is as sun
The most dissolved, ferrum is protected as negative electrode, and therefore galvanizing is a kind of effective anti-corrosion of metal mode, galvanizing product pair
The corrosion inhibitor of iron and steel is lengthened the life, energy-saving material-saving plays inestimable and irreplaceable effect.
In recent years, along with high voltage power transmission, traffic, the developing rapidly of communication career, increasing high-voltage electrical equipment is at family
Outer or field is run and work, and steel and iron parts therein is more and more higher for the requirement of protection.In normal circumstances, galvanizing
Corrosion protection part individually just can use；But, in the damp and hot region of heavy antisepsis, such as industrial area or the corrosive atmosphere of coastal area
In, the hot galvanized layer corrosion rate of steel and iron parts is very fast, is unable to reach the most far away preferable service life.In order to improve heavy antisepsis
The anti-corrosion capability of the Summoning part in region, prior art is application again after steel and iron parts is zinc-plated, i.e. uses at hot galvanized layer surface spraying
In completely cutting off pollution gas and there is the coating of weatherability, improve the corrosion resistance of product.For hot galvanized layer, its surface
The material isolation such as water, corrosion are carried out slowly by film；For film, beneath zinc layers corrosion is slow, damages itself
Reduce.Based on above-mentioned both sides reason, application again after galvanizing, make the corrosion-resistant life of hot galvanizing piece, relative to individually heat
The life-span sum of zinc-plated and independent application improves 1.5-2.3 times, and this is that one has for needing the occasion of long-term heavy antisepsis
The method of effect, but it there is problems of, atopic due to zinc, and film is poor with the adhesion of hot galvanized layer；Giving birth to
During product, the film obscission that causes owing between film and hot galvanized layer adhesive force is bad often occurs, reduces
The qualification rate of part and production efficiency, the production cost causing part is higher, repair rate is higher；Have impact on hot galvanizing piece simultaneously
Service life in heavy antisepsis region, it is impossible to reach the requirement of life-time service.
Summary of the invention
A kind of method that it is an object of the invention to provide hot galvanizing piece heavy antisepsis for high-voltage electrical equipment, solves existing film
And between hot galvanized layer, adhesive force is poor and that the cause caducous phenomenon of film.
In order to realize object above, the technical solution adopted in the present invention is: a kind of hot galvanizing piece for high-voltage electrical equipment
The method of heavy antisepsis, comprises the following steps:
1) take pending hot galvanizing piece, carry out weak base defat, surface coarsening process successively；
2) taking the hot galvanizing piece after surface coarsening processes, surface spraying epoxy micaceous iron intermediate coat, levelling is also dried, and forms the end
Enamelled coating；
3) after primer coat surface being carried out sanded treatment, spraying weatherability finish paint, levelling is also dried, and forms top coat layer.
Step 1) described in weak base defat refer to use pH value be 9～10 alkalescence degreaser carry out defat；Described weak base
In property degreaser, the concentration of alkalescence degreasing agent is 55～65g/L.
Alkalescence degreasing agent is dissolved in water and makes by described alkalescence degreaser.
Preferably, described alkalescence degreasing agent is made up of the component of following mass percent: natrium carbonicum calcinatum 5%～12%, nothing
Water sodium metasilicate 8%～20%, tetrasodium pyrophosphate 15%～30%, sodium tripolyphosphate 40%～65%, Polyethoxylated fatty
Alcohol (also referred to as ethoxylated alcohol) 4%～10%.
The method of described weak base defat comprises the following steps:
After pending hot galvanizing piece is sprayed or soaks 5～10min by the alkalescence degreaser using 60～70 DEG C, use room temperature
Water spray or immersion once wash, then the heat water-spraying or immersion with more than 60 DEG C carries out secondary washing.
The described time once washed is 20～60s；The time of described secondary washing is 20～60s.
Step 1) described in surface coarsening process be use to be sprayed of sand papering, after by compressed air, face to be sprayed is blown
Only.
Step 2) in, described epoxy micaceous iron intermediate coat is double-component paint.
Step 2) and step 3) in, described levelling is carried out at normal temperatures, and flow time is 10～20min.
Step 2) and step 3) in, described being dried refers to dry or natural drying；The temperature of described drying is 80～100 DEG C,
Time is 40～60min.
Step 2) in, the thickness of described prime coat is more than 30 μm.The thickness of described prime coat preferably 30～50 μm.
Step 3) in, the thickness of described top coat layer is more than 20 μm.The thickness of described top coat layer preferably 20～40 μm.
Step 3) described in weatherability finish paint be F-C paint.
Described F-C paint is double-component paint.
The method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment of the present invention, uses the method for weak base defat to enter before japanning
Row pre-treatment, neither solving zinc film can remove again the greasy dirt on surface the most thoroughly；Use epoxy micaceous iron intermediate coat the end of as
Coating, the adhesion between epoxy micaceous iron intermediate coat and zinc layers and finish paint is good, and cloud iron-dope has excellent insulating
Can, in its coating, the Yun Tieneng of lamellar effectively plays isolation performance；The method of the hot galvanizing piece heavy antisepsis of the present invention, solves
The problem of adhesion difference between ferrous metal parts hot galvanized layer and isolation coating (film) in the most anti-region, technique is simple,
Easy to operate, improve qualification rate and the production efficiency of part, reduce repair rate and the production cost of part；Gained is the most anti-
Between film and the hot galvanized layer of rotten part, adhesive force is strong, and film difficult drop-off improves antiseptic property, extends it the most anti-
The service life in rotten region.
The method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment of the present invention, it is adaptable to the 126Kv in heavy antisepsis region is extremely
The anticorrosion of the hot galvanizing pieces such as switchgear, chopper and the disconnecting switch of each electric pressure of 1100Kv.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated.
Epoxy micaceous iron intermediate coat used in following detailed description and F-C paint are commercial goods, open up vertical making purchased from Zhengzhou
Paint company limited.
Embodiment 1
The method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment of the present embodiment, comprises the following steps:
1) take pending hot galvanizing piece, carry out weak base defat, described weak base defat be use pH value be 10, temperature be
After pending hot galvanizing piece is soaked 8min by the alkalescence degreaser of 60 DEG C, once wash with the Water spray 60s of room temperature,
Secondary washing is carried out again with the hot-water soak 20s of 80 DEG C；After checking that surface does not has greasy dirt, carry out surface coarsening process；Described
It is to use to be sprayed of 120# sand papering that surface coarsening processes, and face to be sprayed is blown off by rear clean compressed air；
Wherein, in described alkalescence degreaser, the concentration of alkalescence degreasing agent is 55g/L；Described alkalescence degreasing agent by with
The component composition of lower mass percent: natrium carbonicum calcinatum 8%, anhydrous sodium metasilicate 13%, tetrasodium pyrophosphate 22%, trimerization
Sodium phosphate 50%, polyethoxylated fatty alcohols 7%.
2) hot galvanizing piece after surface coarsening processes, surface spraying epoxy micaceous iron intermediate coat (double-component), levelling under room temperature are taken
After 20min, under conditions of temperature is 100 DEG C, dries 40min, forms the prime coat that thickness is 50 μm；
3) after primer coat surface being carried out sanded treatment with scouring pad, blow off paint powder by compressed air, spray at primer coat surface
It is coated with F-C paint (double-component), under room temperature after levelling 10min, under conditions of temperature is 80 DEG C, dries 40min, forms thickness
Degree is the top coat layer of 20 μm；
4) post processing: remove veil, repairs the defective film of unnecessary liniment, cleaning polishing painting face and non-painting face
The film of intersection, is allowed to rounding off, obtains heavy antisepsis part.
Embodiment 2
The method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment of the present embodiment, comprises the following steps:
1) take pending hot galvanizing piece, carry out weak base defat, described weak base defat be use pH value be 9, temperature be 70 DEG C
Alkalescence degreaser pending hot galvanizing piece is soaked 5min after, once wash with the water soaking 20s of room temperature, then
Secondary washing is carried out with the hot-water soak 40s of 70 DEG C；After checking that surface does not has greasy dirt, carry out surface coarsening process；Described table
Face roughening treatment is to use to be sprayed of 120# sand papering, and face to be sprayed is blown off by rear clean compressed air；
Wherein, in described alkalescence degreaser, the concentration of alkalescence degreasing agent is 60g/L；Described alkalescence degreasing agent by with
The component composition of lower mass percent: natrium carbonicum calcinatum 5%, anhydrous sodium metasilicate 8%, tetrasodium pyrophosphate 15%, trimerization phosphorus
Acid sodium 62%, polyethoxylated fatty alcohols 10%.
2) hot galvanizing piece after surface coarsening processes, surface spraying epoxy micaceous iron intermediate coat (double-component), levelling under room temperature are taken
After 10min, under conditions of temperature is 80 DEG C, dries 60min, forms the prime coat that thickness is 30 μm；
3) after primer coat surface being carried out sanded treatment with scouring pad, blow off paint powder by compressed air, spray at primer coat surface
It is coated with F-C paint (double-component), under room temperature after levelling 15min, under conditions of temperature is 90 DEG C, dries 40min, forms thickness
Degree is the top coat layer of 30 μm；
4) post processing: remove veil, repairs the defective film of unnecessary liniment, cleaning polishing painting face and non-painting face
The film of intersection, is allowed to rounding off, obtains heavy antisepsis part.
Embodiment 3
The method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment of the present embodiment, comprises the following steps:
1) take pending hot galvanizing piece, carry out weak base defat, described weak base defat be use pH value be 9.5, temperature be
After pending hot galvanizing piece is soaked 10min by the alkalescence degreaser of 65 DEG C, carry out a water with the water soaking 40s of room temperature
Wash, then carry out secondary washing with the hot-water soak 20s of 60 DEG C；After checking that surface does not has greasy dirt, carry out surface coarsening process；
It is to use to be sprayed of 120# sand papering that described surface coarsening processes, and face to be sprayed is blown off by rear clean compressed air；
Wherein, in described alkalescence degreaser, the concentration of alkalescence degreasing agent is 65g/L；Described alkalescence degreasing agent by with
The component composition of lower mass percent: natrium carbonicum calcinatum 11%, anhydrous sodium metasilicate 18%, tetrasodium pyrophosphate 27%, trimerization
Sodium phosphate 40%, polyethoxylated fatty alcohols 4%.
2) hot galvanizing piece after surface coarsening processes, surface spraying epoxy micaceous iron intermediate coat (double-component), levelling under room temperature are taken
After 15min, under conditions of temperature is 90 DEG C, dries 50min, forms the prime coat that thickness is 40 μm；
3) after primer coat surface being carried out sanded treatment with scouring pad, blow off paint powder by compressed air, spray at primer coat surface
It is coated with F-C paint (double-component), under room temperature after levelling 20min, under conditions of temperature is 100 DEG C, dries 50min, forms thickness
Degree is the top coat layer of 40 μm；
4) post processing: remove veil, repairs the defective film of unnecessary liniment, cleaning polishing painting face and non-painting face
The film of intersection, is allowed to rounding off, obtains heavy antisepsis part.
Experimental example
Film adhesive and the production cost of the heavy antisepsis method gained heavy antisepsis part of embodiment 1-3 are detected by this experimental example
And evaluation, result is as shown in table 1,2.
Wherein, the hot galvanizing piece heavy antisepsis method of comparative example 1 is to use organic solvent soak degreasing, and its prime coat uses epoxy
Priming paint, remaining is with embodiment 1.The hot galvanizing piece heavy antisepsis method of comparative example 2 is to use organic solvent soak degreasing, remaining
With embodiment 1.The prime coat of the hot galvanizing piece heavy antisepsis method of comparative example 3 uses epoxy primer, and remaining is with embodiment 1.
The heavy antisepsis method of table 1 embodiment 1-3 and the film adhesive comparative result of comparative example
| Heavy antisepsis method | Degreasing method | Priming paint kind | Film adhesive |
| Embodiment 1 | Weak base defat | Epoxy micaceous iron intermediate coat | 0 grade |
| Embodiment 2 | Weak base defat | Epoxy micaceous iron intermediate coat | 0 grade |
| Embodiment 3 | Weak base defat | Epoxy micaceous iron intermediate coat | 0 grade |
| Comparative example 1 | Organic solvent soak degreasing | Epoxy primer | 1-2 level, local film comes off |
| Comparative example 2 | Organic solvent soak degreasing | Epoxy micaceous iron intermediate coat | 0 grade, locally poor adhesive force |
| Comparative example 3 | Weak base defat | Epoxy primer | 1-2 level |
As it can be seen from table 1 the painting binding force of membrane of embodiment 1-3 gained heavy antisepsis part is substantially better than comparative example 1-3, reason exists
In the hot galvanizing piece heavy antisepsis method of embodiment 1-3, the mode of weak base defat can comprehensively remove the oil of component surface
Dirt, improves the quality of oil removing；Epoxy micaceous iron intermediate coat can be obviously improved the adhesive force of coating and hot galvanized layer.And comparative example
1, in 2, organic solvent soak degreasing, the greasy dirt of parts local is used to be difficult to Ex-all, affect the quality of follow-up film；Right
In ratio 3, prime coat uses epoxy primer, and it is poor with the adhesion of hot galvanized layer.
The heavy antisepsis method of table 2 embodiment 1-3 and the film cost comparative result of comparative example
| Heavy antisepsis method | Outward appearance | Coating thickness, μm | Film cost, unit/m2 |
| Embodiment 1 | Flat smooth | 70 | 20 |
| Embodiment 2 | Flat smooth | 60 | 20 |
| Embodiment 3 | Flat smooth | 80 | 20 |
| Comparative example 1 | Flat smooth | 70 | 31 |
| Comparative example 2 | Flat smooth | 70 | 26 |
| Comparative example 3 | Flat smooth | 70 | 31 |
Claims (7)
1. the method for the hot galvanizing piece heavy antisepsis of high-voltage electrical equipment, it is characterised in that: comprise the following steps:
1) take pending hot galvanizing piece, carry out weak base defat, surface coarsening process successively；
2) taking the hot galvanizing piece after surface coarsening processes, surface spraying epoxy micaceous iron intermediate coat, levelling is also dried, and forms prime coat；
3) after primer coat surface being carried out sanded treatment, spraying weatherability finish paint, levelling is also dried, and forms top coat layer；
Weak base defat described in step 1) refers to that the alkalescence degreaser using pH value to be 9～10 carries out defat；In described alkalescence degreaser, the concentration of alkalescence degreasing agent is 55～65g/L；
The method of described weak base defat comprises the following steps:
After pending hot galvanizing piece is sprayed or soaks 5～10min by the alkalescence degreaser using 60～70 DEG C, Water spray or immersion with room temperature are once washed, then the heat water-spraying or immersion with more than 60 DEG C carries out secondary washing；
Weatherability finish paint described in step 3) is F-C paint；
Alkalescence degreasing agent is dissolved in water and makes by described alkalescence degreaser；
Described alkalescence degreasing agent is made up of the component of following mass percent: natrium carbonicum calcinatum 5%～12%, anhydrous sodium metasilicate 8%～20%, tetrasodium pyrophosphate 15%～30%, sodium tripolyphosphate 40%～65%, polyethoxylated fatty alcohols 4%～10%.
The method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment the most according to claim 1, it is characterised in that: the described time once washed is 20～60s；The time of described secondary washing is 20～60s.
The method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment the most according to claim 1, it is characterised in that: surface coarsening described in step 1) process be use to be sprayed of sand papering, after by compressed air, face to be sprayed is blown off.
4. according to the method for the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment described in claim 1, it is characterised in that: step 2) and step 3) in, described levelling is carried out at normal temperatures, and flow time is 10～20min.
5. according to the method for the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment described in claim 1, it is characterised in that: step 2) and step 3) in, described be dried refer to dry or natural drying；The temperature of described drying is 80～100 DEG C, and the time is 40～60min.
The method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment the most according to claim 1, it is characterised in that: step 2) described in the thickness of prime coat be 30～50 μm.
The method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment the most according to claim 1, it is characterised in that: the thickness of top coat layer described in step 3) is 20～40 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410232882.4A CN104289396B (en) | 2014-05-28 | 2014-05-28 | A kind of method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410232882.4A CN104289396B (en) | 2014-05-28 | 2014-05-28 | A kind of method of the hot galvanizing piece heavy antisepsis for high-voltage electrical equipment |
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| CN104289396A CN104289396A (en) | 2015-01-21 |
| CN104289396B true CN104289396B (en) | 2016-08-24 |
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| CN105521930A (en) * | 2015-12-08 | 2016-04-27 | 中国航空工业集团公司洛阳电光设备研究所 | Assembly painting method for improving coating adhesion force |
| CN106563627A (en) * | 2016-10-31 | 2017-04-19 | 河南平高电气股份有限公司 | Anti-corrosion coating for cathode protection and preparation method of coating |
| CN111155079A (en) * | 2019-12-13 | 2020-05-15 | 中国电子科技集团公司第十四研究所 | Tempering agent for enhancing adhesion of organic material coated on surface of hot-dip galvanized steel and tempering method thereof |
| CN116833071A (en) * | 2023-06-28 | 2023-10-03 | 葫芦岛市圣德信轻型起重设备有限公司 | Corrosion prevention method for offshore crane |
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| US5830580A (en) * | 1995-07-03 | 1998-11-03 | Mercedes Benz Ag | Painted sheet metal part with an anti-corrosion bonding layer based on polyacids and a method for applying such a bonding layer |
| CN202098031U (en) * | 2011-06-30 | 2012-01-04 | 河南广电发射塔管理有限公司 | Galvanized steel structural part with surface coating |
| CN103660663A (en) * | 2013-12-06 | 2014-03-26 | 马钢(集团)控股有限公司 | Production method of colorful coating steel band for thermal transfer printing |
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