CN202029462U - Steel member anticorrosion structure - Google Patents

Steel member anticorrosion structure Download PDF

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Publication number
CN202029462U
CN202029462U CN201120115374XU CN201120115374U CN202029462U CN 202029462 U CN202029462 U CN 202029462U CN 201120115374X U CN201120115374X U CN 201120115374XU CN 201120115374 U CN201120115374 U CN 201120115374U CN 202029462 U CN202029462 U CN 202029462U
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CN
China
Prior art keywords
layer
coat layer
steel member
anticorrosion structure
magnesium alloy
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Expired - Lifetime
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CN201120115374XU
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Chinese (zh)
Inventor
李治强
武旭升
董凤杰
徐仁华
周川岭
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Third Engineering Co Ltd of China Railway 23rd Bureau Group Co Ltd
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Third Engineering Co Ltd of China Railway 23rd Bureau Group Co Ltd
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Priority to CN201120115374XU priority Critical patent/CN202029462U/en
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Abstract

The utility model discloses a steel member anticorrosion structure which comprises a member body. An aluminium magnesium alloy metallic coating, a seal primer layer, an epoxy mica iron intermediate coat layer and an acrylic polyurethane finish paint layer are sprayed on the member body sequentially. Firstly, the aluminium magnesium alloy metallic coating is used for carrying out cathode protection on a steel member; the seal primer layer is used for carrying out sealing processing on a gap of the aluminium magnesium alloy metallic coating; on the basis, the epoxy mica iron intermediate coat layer can be used for further preventing corrosion; and finally, the acrylic polyurethane finish paint on the outermost layer is used for isolating the inner coatings from the atmospheric environment, so that the anticorrosion effect is well achieved and the desired effects of the maintenance-free period and the using period of a product can be achieved.

Description

The anticorrosion structure of steel member
Technical field
The utility model relates to a kind of anticorrosion structure of steel member.
Background technology
Nowadays, steel with its cheap price, reliably performance becomes and uses one of maximum material in the world, is indispensable composition in building industry, manufacturing industry and the people's daily life.Many bridges adopt the steel construction manufacturing, the ton surplus in the of ten thousand that weighs that wherein steel construction is many, if it is improper that the outer surface of steel construction is carried out preservative treatment, its freedom from repairs cycle and life cycle all fall flat.
The utility model content
The technical problems to be solved in the utility model is at above-mentioned the deficiencies in the prior art, provides a kind of steel member anticorrosion structure, can finish addressing the above problem.
The technical solution adopted in the utility model is: the anticorrosion structure of a kind of steel member, comprise member bodies, and be coated with almag metal coating, seal coat layer, the middle enamelled coating of epoxy micaceous iron and acroleic acid polyurethane top coat layer on the described member bodies successively.
Described almag metal coating thickness is 200 ± 25 μ m.
Described seal coat layer thickness is 25 μ m.
Enamelled coating is total two-layer in the middle of the described epoxy micaceous iron, and its dry film gross thickness is 80 μ m.
Described acroleic acid polyurethane top coat layer is total two-layer, and its dry film gross thickness is 80 μ m.
The beneficial effects of the utility model are: at first the almag metal coating carries out cathodic protection to the steel member; the seal coat layer seals processing to the slit of almag metal coating; the middle enamelled coating of epoxy micaceous iron can further stop the generation of corrosion on this basis; last outermost acroleic acid polyurethane top coat layer is kept apart coated inside and atmospheric environment; thereby play good corrosion-resisting function, the freedom from repairs cycle of its product and life cycle all can be produced a desired effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, member bodies; 2, almag metal coating; 3, seal coat layer; 4, enamelled coating in the middle of the epoxy micaceous iron; 5, acroleic acid polyurethane top coat layer.
The specific embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in further detail.
As shown in Figure 1, the anticorrosion structure of a kind of steel member comprises member bodies 1, is coated with almag metal coating 2, seal coat layer 3, the middle enamelled coating 4 of epoxy micaceous iron and acroleic acid polyurethane top coat layer 5 on the described member bodies 1 successively.Described almag metal coating 2 thickness are 200 ± 25 μ m.Described seal coat layer 3 thickness are 25 μ m.Enamelled coating 4 is total two-layer in the middle of the described epoxy micaceous iron, and its dry film gross thickness is 80 μ m.Described acroleic acid polyurethane top coat layer 5 has two-layer, and its dry film gross thickness is 80 μ m.
Its construction technology process is as follows:
A) carry out removing surface
Clean to polishings such as the overlap on the steel component surface, splash, burrs; The greasy dirt that the surface is existed, soluble-salt etc. are clean with cleaning agent or solvent clean; The weld grinding circle is suitable.Finally make component surface not have oil, pollution-free, no soluble-salt, the weld seam circle is suitable, does not have other welding slag, overlap, splash etc.
B) derusting by sandblasting
Manual sandblast covers the whole member surface, and nozzle moves with constant speed straight line, and together, the spraying of whole member should have certain sequence before the back overlapped together, from top to bottom, and from the end to end sandblast successively of member.In the process of sandblast, to carry out visual examination, thereby determine the needed time, should carry out sandblast and the time should be longer than commercial blast slightly from different angles when carrying out sandblast in the angle to the uniformity coefficient of member sand blasted surface.To the very thick surface of some oxide skins, use low-angle when being preferably in spray just, can well produce a less roughness like this except that descale, slightly release souls from purgatory to obtain correct surface with the wide-angle sandblast subsequently.
C) spraying almag metal coating
The no special circumstances in the qualified back of derusting by sandblasting generally should be carried out the spraying of almag metal coating immediately, also should carry out almag metal coating spraying (anti-rust phenomenon occurring to prevent the steel construction surface) at the latest in 4 hours.Application of compressed air or banister brush cleaning component surface makes pollution-free, the no dust of component surface and other attachments before the spraying.
D) with perching knife or sand paper the electric arc spraying layer is carried out surface treatment before enamelled coating and the spraying of acroleic acid polyurethane top coat layer in the middle of spraying seal coat layer, the epoxy micaceous iron; remove surperficial loosening particle or local big fusing point, the electric arc spraying layer is in conjunction with tight before guaranteeing to spray.Application of compressed air is blown or banister brush purges last process acceptance(check) component surface before every layer of spraying, makes component surface reach pollution-free, no dust and other attachments.Spray gun must suitably, evenly remain between the 30-50cm from the distance on surface during construction, and from top to bottom, from left to right spray successively, it is even to walk rifle during spraying during spraying, and every rifle covers 1/2 and carries out operation.
Good and stable for the paint vehicle atomizing that guarantees to spray, paint vehicle viscosity must be suitable, and guarantee that spraying equipment has higher ejection pressure and spray volume.If construction temperature is higher, can add a little diluents in order to avoid do spray.Must control paint consumption.Avoid the blocked up sagging that causes of enamelled coating, dry and cracked and dissolvent residual.If any phenomenons such as dust, sand grains, dried sprays, must remediation.
Wherein material therefor and performance requirement thereof are as follows:
A) almag (magnadure metal coating):
Adopt the aluminum-magnesium alloy wire of Zhejiang Xing Ta science and technology equipment and materials company, the model φ 3mm trade mark 1060, wherein aluminium content should be greater than 99.6%, and content of magnesium should require smooth, directly consistent, the no folding line in aluminum-magnesium alloy wire pool less than 0.03% in the construction.
B) seal coat (seal coat layer):
The old man's board epoxy seal coat that adopts He Pu (Kunshan) coating Co., Ltd to produce, trade mark look number are 45230-12170, adopt its composition and relevant parameter to be:
1) base-material: 45239
2) curing agent: 95040
3) diluent: 08450
4) mixing ratio: 3: 1 (volume ratio)
5) mix service time: 2 hours (20 ℃)
6) the dry time of surface drying: 3 hours/(20 ℃)
7) refer to touch dried: 8 to 10 hours/(20 ℃) annotate (to do solid work different thickness and different environmental condition following drying time of differences)
8) solidify fully: 7 days/(20 ℃)
C) epoxy micaceous iron intermediate coat (enamelled coating in the middle of the epoxy micaceous iron):
The old man's board epoxy micaceous iron intermediate coat that adopts He Pu (Kunshan) coating Co., Ltd to produce, trade mark look number are 45880-12170, adopt its composition and relevant parameter to be:
1) base-material: 45889
2) curing agent: 95880
4) diluent: 08450
5) mixing ratio: 3: 1 (volume ratio)
6) mix service time: spraying is 1 hour (20 ℃)
7) surface drying time: about 2 hours
8) refer to touch dried: 4 hours (20 ℃) annotate (to do solid work different thickness and different environmental condition following drying time of differences)
9) solidify fully: 7 days/(20 ℃)
D) acroleic acid polyurethane finish paint (acroleic acid polyurethane top coat layer):
The old man's board polyurethane finish 55210-113K0 that adopts He Pu (Kunshan) coating Co., Ltd to produce, adopt its composition and relevant parameter to be:
1) base-material: 55219
2) curing agent: 95370
3) diluent: 08080
4) mixing ratio: 7: 1 (volume ratio)
5) mix service time: 4 hours (20 ℃)
6) drying time: surface drying time 2.5 hours (20 ℃) refers to touch dried 8 hours (20 ℃) (to do solid work different thickness and different environmental condition following drying time of differences)
7) solidify fully: 7 days/(20 ℃).

Claims (5)

1. the anticorrosion structure of steel member comprises member bodies, it is characterized in that: be coated with almag metal coating, seal coat layer, the middle enamelled coating of epoxy micaceous iron and acroleic acid polyurethane top coat layer on the described member bodies successively.
2. the anticorrosion structure of steel member according to claim 1 is characterized in that: described almag metal coating thickness is 200 ± 25 μ m.
3. the anticorrosion structure of steel member according to claim 1 is characterized in that: described seal coat layer thickness is 25 μ m.
4. the anticorrosion structure of steel member according to claim 1 is characterized in that: enamelled coating is total two-layer in the middle of the described epoxy micaceous iron, and its dry film gross thickness is 80 μ m.
5. the anticorrosion structure of steel member according to claim 1 is characterized in that: described acroleic acid polyurethane top coat layer is total two-layer, and its dry film gross thickness is 80 μ m.
CN201120115374XU 2011-04-19 2011-04-19 Steel member anticorrosion structure Expired - Lifetime CN202029462U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201120115374XU CN202029462U (en) 2011-04-19 2011-04-19 Steel member anticorrosion structure

Publications (1)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518333A (en) * 2011-12-30 2012-06-27 山东省呈祥电工电气有限公司 Pollution flashover-prevention, corrosion-prevention and freezing-prevention electric tower and surface treatment method thereof
CN104941887A (en) * 2015-06-01 2015-09-30 蚌埠市蚌风风机有限公司 Fan painting technique
CN105735626A (en) * 2016-02-19 2016-07-06 江苏华海钢结构有限公司 Anticorrosion steel-structure scaffold capable of facilitating up-down climbing
CN107023681A (en) * 2017-03-24 2017-08-08 长葛市航天密封科技有限公司 A kind of anticorrosion seal washer
CN107442369A (en) * 2016-05-30 2017-12-08 五冶集团上海有限公司 Oil paint coating construction method under hot and humid environment
CN110004448A (en) * 2017-11-14 2019-07-12 埃瓦尔德德尔肯有限公司 Corrosion control coating
CN112981302A (en) * 2021-02-05 2021-06-18 中国人民解放军63796部队 Site construction process of steel structure anticorrosion composite coating in south sea atmospheric environment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518333A (en) * 2011-12-30 2012-06-27 山东省呈祥电工电气有限公司 Pollution flashover-prevention, corrosion-prevention and freezing-prevention electric tower and surface treatment method thereof
CN102518333B (en) * 2011-12-30 2014-06-04 山东省呈祥电工电气有限公司 Pollution flashover-prevention, corrosion-prevention and freezing-prevention electric tower and surface treatment method thereof
CN104941887A (en) * 2015-06-01 2015-09-30 蚌埠市蚌风风机有限公司 Fan painting technique
CN105735626A (en) * 2016-02-19 2016-07-06 江苏华海钢结构有限公司 Anticorrosion steel-structure scaffold capable of facilitating up-down climbing
CN107442369A (en) * 2016-05-30 2017-12-08 五冶集团上海有限公司 Oil paint coating construction method under hot and humid environment
CN107023681A (en) * 2017-03-24 2017-08-08 长葛市航天密封科技有限公司 A kind of anticorrosion seal washer
CN110004448A (en) * 2017-11-14 2019-07-12 埃瓦尔德德尔肯有限公司 Corrosion control coating
CN110004448B (en) * 2017-11-14 2024-03-22 埃瓦尔德德尔肯有限公司 Corrosion control coating
CN112981302A (en) * 2021-02-05 2021-06-18 中国人民解放军63796部队 Site construction process of steel structure anticorrosion composite coating in south sea atmospheric environment

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Granted publication date: 20111109