CN202651640U - Saline-alkaline corrosion proofing outdoor switch cabinet - Google Patents
Saline-alkaline corrosion proofing outdoor switch cabinet Download PDFInfo
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- CN202651640U CN202651640U CN 201220281252 CN201220281252U CN202651640U CN 202651640 U CN202651640 U CN 202651640U CN 201220281252 CN201220281252 CN 201220281252 CN 201220281252 U CN201220281252 U CN 201220281252U CN 202651640 U CN202651640 U CN 202651640U
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- switch cabinet
- saline
- outdoor switch
- switch case
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Abstract
Provided is a saline-alkaline corrosion proofing outdoor switch cabinet including a casing and a switch cabinet arranged in the casing. The casing and the switch cabinet are made of metal plates, a saline-alkaline corrosion proofing coating is arranged on the metal plates, and at least two protective layers are arranged on the external surface of the casing through electrostatic spraying. The coating is an aluminium zinc magnesium alloy layer. The thickness of the protective layers is greater than or equal to 150 [mu]m. The casing and the switch cabinet are connected via a fastener. The fastener is processed by dacromet technology. The metal plates are steel plates. By adopting the above technology, the high saline-alkaline corrosion proofing capability of the outdoor switch cabinet provided is 6-10 times higher than that of a conventional outdoor switch cabinet, and the applicability of the outdoor switch cabinet provided also can be ensured even in an environmental condition having a pH value less than 10.
Description
Technical field
The utility model relates to a kind of outdoor switch case of anti-saline alkali corrosion.
Background technology
The outdoor switch case is outdoor equipment necessary in the power transmission and distribution.The case shell material of outdoor switch case mainly contains stainless steel, SMC etc., and its corrosion resistance can satisfy the requirement of various harsh and unforgiving environments.But at present most domestic outdoor switch case and on the employed material of switch cubicle be Al-Zn coated steel, its antiseptic property is having more excellent performance take sour corrosion on the weak side in main landlocked environment, but in coastal area or marine environment, because the pH value meta-alkalescence of seawater, the anti-corrosion capability that outdoor switch case and switch cubicle embody in saline-alkali environment but can not allow the people fully satisfied.Simultaneously, the securing member between traditional outdoor switch case and the switch cubicle uses hot galvanizing or blackening process, and its anticorrosion effect corrodes area and not obvious at high salinity.Therefore, the outdoor switch case that works out a kind of anti-saline alkali corrosion has great importance.
The utility model content
The purpose of this utility model aims to provide the outdoor switch case of a kind of simplicity of design, anti-saline alkali corrosion rational in infrastructure, to overcome weak point of the prior art.
Press the outdoor switch case of a kind of anti-saline alkali corrosion of this purpose design; comprise casing; with the switch cubicle that sets within it; casing and switch cubicle are made by sheet metal; its architectural feature is the coating that is provided with saline-alkaline corrosion-resistant on the described sheet metal, and the outer surface of described casing scribbles two-layer at least protective layer by electrostatic.
Described coating is aluminium zinc magnesium alloy layer.
The thickness of described protective layer is more than or equal to 150 μ m.
Connect by securing member between described casing and the switch cubicle.
Described securing member is processed by Dacromet Technology.
Described sheet metal is steel.
Casing of the present utility model and switch cubicle are made by the sheet metal that is provided with aluminium zinc magnesium alloy layer; the outer surface of casing is coated with protective layer; securing member between casing and the switch cubicle adopts Dacromet Technology to process; application by above-mentioned technology; make the high salt tolerance caustic corrosion of outdoor switch case can force rate the high 6-10 of tradition outdoor switch case doubly, even also can guarantee its applicability at pH value under greater than 10 environmental condition.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment outdoor switch case.
Fig. 2 is the structural representation (part) of an embodiment sheet metal.
Fig. 3 is the sectional view (part) of an embodiment box outer surface.
Fig. 4 is that traditional Al-Zn coated steel and the present embodiment zinc-magnesium steel plate of aluminizing soaks the schematic diagram of coating meltage in 5% sodium chloride solution.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Fig. 4; the outdoor switch case of this anti-saline alkali corrosion; comprise casing 1; with the switch cubicle 3 that sets within it; casing 1 and switch cubicle 3 are made by sheet metal 1.1; be provided with the coating 2 of saline-alkaline corrosion-resistant on its described sheet metal 1.1, the outer surface of described casing 1 scribbles two-layer at least protective layer 4 by electrostatic.
Referring to Fig. 2, sheet metal 1.1 is steel, and the coating 2 that arranges on it is aluminium zinc magnesium alloy layer, so it actually is the zinc-magnesium steel plate of aluminizing.The composition of aluminium zinc magnesium alloy layer is take zinc as main, about 11% aluminium, about 3% magnesium and micro-silicon have been added simultaneously, because these add composite action, the especially silicon of elements and the composite action of magnesium can make sheet metal 1.1(steel) anticorrosion effect better, simultaneously because coating 2 only has 90g/m
2, (thickness is about 550g/m than general alumin(i)um zinc alloy layer for it
2) having finer and close diaphragm, the infiltration of blocks moisture and air guarantees that long-time use can not produce red rust in the surface of sheet metal 1.1 afterwards.
Referring to Fig. 3, the thickness of protective layer 4 is more than or equal to 150 μ m, and even thickness is consistent, can protect the shell of casing 1, strengthens corrosion resistance, guarantees that simultaneously appearance color at least 15 years is colour-fast.
Connect (unlabelled among the figure) by securing member between casing 1 and the switch cubicle 3.Securing member is processed by Dacromet Technology.The surface treatment method that the securing member of conventional tank and switch cubicle adopts is take hot galvanizing or blackout as main, but corrodes the area at high salinity, and these traditional surface treatment methods are all not competent aspect anticorrosion.Therefore, the securing member of the utility model casing 1 and switch cubicle 3 adopts Dacromet Technology to process.Dacromet Technology is born in later 1950s the earliest, and purpose is to have solved Chloride Attack in the sodium chloride problem of automobile steel substrate (most of areas are sprinkling upon the freezing point temperature that method on the ground reduces water with salt and freeze to alleviate road in ice and snow weather).The thickness of Dacroment rete only is 4-8 μ m, but that its rust-proof effect is traditional electrical is zinc-plated, the 7-10 of hot galvanizing or coating cladding process doubly more than.Adopt the securing member of Dacroment PROCESS FOR TREATMENT red rust not occur more than salt-fog resistant test 1200h, its decay resistance is 7-10 times of common plating.Therefore, the securing member of Dacroment processing is having unrivaled advantage aspect the corrosion of opposing high salinity.
Referring to Fig. 4, for traditional Al-Zn coated steel (solid line represents) and the present embodiment zinc-magnesium steel plate (dotted line represents) of aluminizing soaks the schematic diagram of coating meltage in 5% sodium chloride solution.Learn that from figure the aggregate performance of the zinc-magnesium steel plate corrosion resistant ability of aluminizing is 6-8 times of Al-Zn coated steel, can adapt to the higher alkaline environment of PH.Coating 2 has the processing adaptation of anti-severe condition, and simultaneously, coating 2 hardness are high, have remarkable traumatic resistance, guarantee the antiseptic property of outdoor switch case integral body.
The outdoor switch case of this anti-saline alkali corrosion has unique anti-corrosion ability equally at steel fracture, punching or the weld of casing 1 and switch cubicle 3.At the position that steel expose; first meeting generating portion red rust; but because coating 2 alloying components are dissolvable in water water; on section or welding position, progressively spread expansion by sacrificing antiseptic effect; cover on the existing red rust; behind moisture drying, just formed dense protection epithelium, thereby the continuation of well having blocked red rust produces.The anti-red rust of the outdoor switch case of this anti-saline alkali corrosion is higher 15 times than the outdoor switch case that uses hot-dip galvanized steel sheet to make.
For the hardware that is applied in coastal waters or offshore platform owing to be subject to salt fog moisture impact in the marine atmosphere; situation about being corroded under this condition is much more serious than the hinterland; according to the corrosion class classification of ISO12944 definition, coastal area and offshore platform are in the extremely strong corrosive environment of highest ranking.And the outdoor switch case of this anti-saline alkali corrosion then can be competent at above-mentioned environment, and under the higher alkali condition of pH value, the outdoor switch case corrosion rate that adopts Al-Zn coated steel to make is very fast, and the corrosion of adopting the outdoor switch case 1 that the zinc-magnesium steel plate of aluminizing makes seldom.As seen this outdoor switch case is more suitable for using in saline-alkali environment.By the application of above technology, the utility model can be competent in the high salinity erosion such as tide area regional safety, reliable, stable operation.
Claims (6)
1. the outdoor switch case of an anti-saline alkali corrosion; comprise casing (1); with the switch cubicle that sets within it (2); casing (1) and switch cubicle (3) are made by sheet metal (1.1); it is characterized in that being provided with on the described sheet metal (1.1) coating (2) of saline-alkaline corrosion-resistant, the outer surface of described casing (1) scribbles two-layer at least protective layer (4) by electrostatic.
2. the outdoor switch case of described anti-saline alkali corrosion according to claim 1 is characterized in that described coating (2) is aluminium zinc magnesium alloy layer.
3. the outdoor switch case of described anti-saline alkali corrosion according to claim 1 is characterized in that the thickness of described protective layer (4) is more than or equal to 150 μ m.
4. the outdoor switch case of each described anti-saline alkali corrosion is characterized in that connecting by securing member between described casing (1) and the switch cubicle (3) according to claim 1-3.
5. the outdoor switch case of described anti-saline alkali corrosion according to claim 4 is characterized in that described securing member processes by Dacromet Technology.
6. the outdoor switch case of each described anti-saline alkali corrosion according to claim 4 is characterized in that described sheet metal (1.1) is steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281252 CN202651640U (en) | 2012-06-14 | 2012-06-14 | Saline-alkaline corrosion proofing outdoor switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281252 CN202651640U (en) | 2012-06-14 | 2012-06-14 | Saline-alkaline corrosion proofing outdoor switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651640U true CN202651640U (en) | 2013-01-02 |
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ID=47420687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220281252 Expired - Lifetime CN202651640U (en) | 2012-06-14 | 2012-06-14 | Saline-alkaline corrosion proofing outdoor switch cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN202651640U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327573A (en) * | 2014-10-20 | 2015-02-04 | 江苏常明电力设备有限公司 | Anticorrosive switch cabinet |
| CN105505058A (en) * | 2015-12-28 | 2016-04-20 | 常熟市古里电器厂 | Power distribution cabinet board |
| CN111884062A (en) * | 2019-12-25 | 2020-11-03 | 南通市海王电气有限公司 | Corrosion-resistant switch cabinet |
-
2012
- 2012-06-14 CN CN 201220281252 patent/CN202651640U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327573A (en) * | 2014-10-20 | 2015-02-04 | 江苏常明电力设备有限公司 | Anticorrosive switch cabinet |
| CN105505058A (en) * | 2015-12-28 | 2016-04-20 | 常熟市古里电器厂 | Power distribution cabinet board |
| CN111884062A (en) * | 2019-12-25 | 2020-11-03 | 南通市海王电气有限公司 | Corrosion-resistant switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |