CN108660447B - For the stabilized pretreatment fluid of Surface Rust of Weathering Steel and preprocess method - Google Patents
For the stabilized pretreatment fluid of Surface Rust of Weathering Steel and preprocess method Download PDFInfo
- Publication number
- CN108660447B CN108660447B CN201810620156.8A CN201810620156A CN108660447B CN 108660447 B CN108660447 B CN 108660447B CN 201810620156 A CN201810620156 A CN 201810620156A CN 108660447 B CN108660447 B CN 108660447B
- Authority
- CN
- China
- Prior art keywords
- weathering steel
- pretreatment fluid
- steel
- spray
- stabilized
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention relates to the stabilized pretreatment fluid of Surface Rust of Weathering Steel and preprocess methods under a kind of industrial atmospheric environment, belong to metal corrosion and protection technical field, the present invention is intended to provide a kind of be used for the stabilized pretreatment fluid of Surface Rust of Weathering Steel and preprocess method, to solve, rusty scale stabilization technology in the prior art is not directed to industrial atmospheric and sea atmosphere corrosion both corrosive environments are designed the technical issues of unused pretreatment fluid carries out anti-corrosion respectively.The present invention provides one kind to be used for the stabilized pretreatment fluid of Surface Rust of Weathering Steel, each chemical constituent and its mass fraction in pretreatment fluid are as follows: Cr2(SO4)3: 0.5~2%, FeSO4: 0.3~1.2%, CuSO4: 0.1~0.6%, NaHSO3: 0.3~1.2% and NiSO4: 0.2~1.0%, surplus H2O.Pretreatment fluid and preprocess method provided by the invention realize Surface Rust of Weathering Steel under industrial atmospheric environment and stabilize, and avoid the significant corrosion problems of weathering steel, it is ensured that the corrosion-free storage of China's weathering steel steel.
Description
Technical field
The present invention relates to weathering steel is used under metal corrosion and protection technical field more particularly to a kind of industrial atmospheric environment
The stabilized pretreatment fluid of Surface Rust and preprocess method.
Background technique
Though weathering steel can rely on the protective effect of the densification rusty scale of its surface formation and show that good resistance to atmosphere is rotten
Corrosion energy.However, its stabilisation for completing rusty scale in the natural environment needs for quite a long time, this greatly affects weather-proof
The using effect of steel.In addition, weathering steel is often also easy to occur early stage corrosion during military service seriously or rust liquid stream is hung or flown
Dissipate phenomenon.The problems such as in view of environmental protection and appearance, this unfavorable phenomenon are even more the serious a large amount of uses for restricting weathering steel.In order to
It solves the problems, such as this, accordingly develops various rusty scale stabilization technologies both at home and abroad.
Foreign countries have carried out a large amount of correlative study to rusty scale stabilizing surface treatment, and develop a variety of different types
" on rust paint ".The steel surface that this kind of coating can be applied directly to exposed steel matrix surface or get rusty, by institute
Infiltration, conversion or the stabilization of rusty scale are generated, it is final to improve rusty scale protectiveness, to be effectively improved the resistance to big of weather-proof steel matrix
Gas corrosion performance.Relative to other steel surface treatment process, rusty scale stabilizing surface treatment has saving of labor, time saving, efficient, low
, there is apparent realistic meaning in many advantages, such as pollution to weathering steel use scope is improved.
China pair and the research of rusty scale stabilizing surface treatment are later, and the research and development of product are also less, and there are also many insufficient.State
Relevant rusty scale stabilization technology is studied by interior many colleges and universities and scientific research institutions.But existing rusty scale stabilizes
Technology is simultaneously not associated with specific corrosive environment progress heterogeneity design, especially industrial atmospheric environment and marine atmosphere corruption
Environment is lost, both environment need to be treated differently, and need for different corrosive ions (industrial atmosphere SO4 2-, marine atmosphere
Cl-) design of different disposal liquid ingredient is carried out respectively
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide it is a kind of for the stabilized pretreatment fluid of Surface Rust of Weathering Steel and
Preprocess method is not directed to industrial atmospheric and sea atmosphere corrosion to solve rusty scale stabilization technology in the prior art
Both corrosive environments are designed the technical issues of unused pretreatment fluid carries out anti-corrosion respectively.
The purpose of the present invention is mainly achieved through the following technical solutions:
The present invention provides one kind to be used for the stabilized pretreatment fluid of Surface Rust of Weathering Steel, each chemical group in pretreatment fluid
Divide and its mass fraction is Cr2(SO4)3: 0.5~2%, FeSO4: 0.3~1.2%, CuSO4: 0.1~0.6%, NaHSO3: 0.3
~1.2% and NiSO4: 0.2~1.0%, surplus H2O。
Preferably, each chemical constituent and its mass fraction in pretreatment fluid are as follows: Cr2(SO4)3: 1.0~1.5%, FeSO4:
0.5~1.0%, CuSO4: 0.2~0.5%, NaHSO3: 0.5~1.0% and NiSO4: 0.5~0.8%, surplus H2O。
Preferably, each chemical constituent and its mass fraction in pretreatment fluid are as follows: Cr2(SO4)3: 1.2%, FeSO4: 1.0%,
CuSO4: 0.2~0.4%, NaHSO3: 0.5~0.8% and NiSO4: 0.5~0.7%, surplus H2O。
Preferably, each chemical constituent and its mass fraction in pretreatment fluid are as follows: 1.92%Cr2(SO4)3, 1.12%FeSO4、
0.12%CuSO4, 0.4%NaHSO3, 0.2%NiSO4, surplus H2O。
Preferably, each chemical constituent and its mass fraction in pretreatment fluid are as follows: 1.5%Cr2(SO4)3, 1.0%FeSO4、
0.2%CuSO4, 0.8%NaHSO3, 0.7%NiSO4, surplus H2O。
The present invention also provides one kind to be used for the stabilized preprocess method of Surface Rust of Weathering Steel, comprising the following steps:
S1. steel matrix surface is removed into surface scale by shot-peening or the method for pickling；
S2. any of the above weathering steel surface preparation liquid is prepared, is mixed evenly to obtain the pretreatment fluid of blue.
S3. prepared solution is poured into sprayer, uniformly sprays 5-10 seconds to weather-proof steel surface in steel surface,
Sprayed it is primary after, allow weather-proof steel surface naturally dry；
S4. then uniform surface sprays water 5-10 seconds once, weather-proof steel surface naturally dry；
S5. uniform surface is sprayed water 5-10 seconds again, weather-proof steel surface naturally dry；
S6. the uniform surface of third time is sprayed water 5-10 seconds, weather-proof steel surface naturally dry；
S7. it repeats water spray-dry process 2 times or more, until one layer of uniform and fine and close rusty scale of weathering steel Surface Creation, spray
Water-dry process number is more, and the thicker rusty scale the finer and close.
Compared with prior art, the technical effect that the present invention has are as follows:
Weathering steel surface preparation liquid in industrial atmosphere is mainly applied under industrial atmospheric environment, for SO4 2-
And design, effect is that weathering steel under industrial atmospheric environment is promoted to accelerate to form fine and close rusty scale, wherein being added with for Cr is conducive to rusty scale
The ratio of middle protectiveness alpha-feooh tissue improves, and Cr can aliquot replacement alpha-feooh generate stable α-CrxFe1-xOOH,
Rusty scale is complete, fine and close, adhesion is strong, has refined rusty scale tissue, has improved the protective of rusty scale.Cu be with weathering steel corrosion resistance most
Relevant element, and the alloying element of most cost performance, corrosion process Cu are enriched in metal surface, are formed Cu deposition, are slowed down
Corrosion.Ni element makes Fe in interior rusty scale in steel3O4Fe atom site by Ni atom replace become Fe3-xNixO4, make rusty scale from
The selection of son sexually revises, and also improves alpha-feooh/γ-FeOOH ratio, advantageously forms the rusty scale of continuous densification.It is industrial big
Main polluted gas is SO in gas2, SO2It meets rainfall and forms sulfurous acid (salt), further oxidation and available sulfuric acid (salt),
There are SO in rainwater3 2-And SO4 2-, thus selected in pretreatment fluid the sulfate of Cr, Cu, Ni.Add FeSO4And NaHSO3
It is mainly considered as corrosion process catalyst action, accelerated corrosion process makes weather-proof steel surface be rapidly formed stable rusty scale.
To sum up, this method is directly handled exposed weather-proof steel surface using self-control treatment fluid.Wherein, treatment fluid
Middle Cr2(SO4)3Promote the formation of alpha-feooh in the stabilization rusty scale of weather-proof steel surface, FeSO4In accelerated corrosion and stable rusty scale
The formation of alpha-feooh, CuSO4And NiSO4Addition so that Cu and Ni be enriched in rusty scale enhance its corrosion resistance, uniformly caused
Close rusty scale, weathering steel is more beautiful in use after this processing, while being also prevented from the loss of rust liquid, avoids
The sagging phenomenon of rust liquid, reduces the pollution to environment.
It in the present invention, can also be combined with each other between above-mentioned each technical solution, to realize more preferred assembled schemes.This
Other feature and advantage of invention will illustrate in the following description, also, certain advantages can become from specification it is aobvious and
It is clear to, or understand through the implementation of the invention.The objectives and other advantages of the invention can by specification, claims with
And it is achieved and obtained in specifically noted content in attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is the weathering steel original appearance of unused pretreatment fluid processing in the present invention；
Fig. 2 is through pretreatment fluid provided by the invention and preprocess method treated weathering steel complexion.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention, it is not intended to limit the scope of the present invention.
The present invention provides one kind to be used for the stabilized pretreatment fluid of Surface Rust of Weathering Steel, each chemical group in pretreatment fluid
Point and its mass fraction are as follows: Cr2(SO4)3: 0.5~2%, FeSO4: 0.3~1.2%, CuSO4: 0.1~0.6%, NaHSO3:
0.3~1.2% and NiSO4: 0.2~1.0%, surplus H2O。
Illustratively, technical solution of the present invention carries out rusty scale test point by the weathering steel being chronically exposed in atmosphere
Analysis finds the enrichment phenomenon that alloying element is different degrees of in rusty scale, and if Cr, Cu are enriched in interior rusty scale, Ni uniformly divides in rusty scale
Cloth, and then design.Cr, Cu, Ni are the elements to corrosion resistance, and being added with for Cr is conducive to protectiveness α-in rusty scale
FeOOH tissue ratio improve, and Cr can aliquot replacement alpha-feooh generate stable α-CrxFe1-xOOH, rusty scale is complete, causes
It is close, adhesion is strong, has refined rusty scale tissue, improve the protective of rusty scale.Cu be with the maximally related element of weathering steel corrosion resistance,
It is also the alloying element of most cost performance, corrosion process Cu is enriched in metal surface, is formed Cu deposition, is slowed down corrosion.Ni element
Make Fe in interior rusty scale in steel3O4Fe atom site by Ni atom replace become Fe3-xNixO4, sexually revise rusty scale ion, also
Alpha-feooh/γ-FeOOH ratio is improved, the rusty scale of continuous densification is advantageously formed.Main contamination gas in industrial atmosphere
Body is SO2, SO2It meets rainfall and forms sulfurous acid (salt), further oxidation and available sulfuric acid (salt), there are SO in rainwater3 2-With
SO4 2-, thus selected in pretreatment fluid the sulfate of Cr, Cu, Ni.Add FeSO4And NaHSO3Mainly it is considered as corruption
Process catalyst effect is lost, accelerated corrosion process makes weather-proof steel surface be rapidly formed stable rusty scale.
In order to generate uniform, fine and close rusty scale, each chemical constituent and its mass fraction can be in pretreatment fluid are as follows: Cr2
(SO4)3: 1.0~1.5%, FeSO4: 0.5~1.0%, CuSO4: 0.2~0.5%, NaHSO3: 0.5~1.0% and NiSO4:
0.5~0.8%, surplus H2O.The experiment shows the pretreatment fluid for preparing formula preprocess method according to the invention
The rigid matrix surface of weathering steel is handled, the rusty scale finally obtained uniformly, it is fine and close, rusty scale colour consistency is good, and surface without
The phenomenon that liquid stream of becoming rusty is hung.
Similarly, in order to make weathering steel matrix surface generate uniform, fine and close rusty scale, in pretreatment fluid each chemical constituent and
Its mass fraction are as follows: Cr2(SO4)3: 1.2%, FeSO4: 1.0%, CuSO4: 0.2~0.4%, NaHSO3: 0.5~0.8% He
NiSO4: 0.5~0.7%, surplus is water.The experiment shows the pretreatment fluid for preparing formula pretreatment according to the invention
Method handles the rigid matrix surface of weathering steel, and the rusty scale finally obtained is uniform, fine and close, and rusty scale colour consistency is good, and table
The phenomenon that rustless liquid stream in face is hung.
Similarly, in order to make weathering steel matrix surface generate the rusty scale of even compact, in pretreatment fluid each chemical constituent and
Its mass fraction are as follows: 1.92%Cr2(SO4)3, 1.12%FeSO4, 0.12%CuSO4, 0.4%NaHSO3, 0.2%NiSO4, remaining
Amount is H2O.The experiment shows the pretreatment fluid for preparing formula preprocess method according to the invention to the rigid matrix of weathering steel
The phenomenon that surface is handled, and the rusty scale finally obtained is uniform, fine and close, and rusty scale colour consistency is good, and the rustless liquid stream in surface is hung.
Similarly, in order to make weathering steel matrix surface generate the rusty scale of even compact, in pretreatment fluid each chemical constituent and
Its mass fraction can: 1.5%Cr2(SO4)3, 1.0%FeSO4, 0.2%CuSO4, 0.8%NaHSO3, 0.7%NiSO4, surplus is
H2O.The experiment shows the pretreatment fluid for preparing formula preprocess method according to the invention to the rigid matrix surface of weathering steel
Handled, the rusty scale finally obtained uniformly, fine and close, the phenomenon that rusty scale colour consistency is good, and the rustless liquid stream in surface is hung.
The present invention also provides one kind to be used for the stabilized preprocess method of Surface Rust of Weathering Steel, comprising the following steps:
S1. steel matrix surface is removed into surface scale by shot-peening or the method for pickling；
S2. any of the above weathering steel surface preparation liquid is prepared, is mixed evenly to obtain the pretreatment fluid of blue；
S3. prepared solution is poured into sprayer, uniformly sprays 5-10 seconds to weather-proof steel surface in steel surface,
Sprayed it is primary after, allow weather-proof steel surface naturally dry；
S4. then uniform surface sprays water 5-10 seconds once, weather-proof steel surface naturally dry；
S5. uniform surface is sprayed water 5-10 seconds again, weather-proof steel surface naturally dry；
S6. the uniform surface of third time is sprayed water 5-10 seconds, weather-proof steel surface naturally dry；
S7. it repeats water spray-dry process 2 times or more, until one layer of uniform and fine and close rusty scale of weathering steel Surface Creation, spray
Water-dry process number is more, and the thicker rusty scale the finer and close.
Specifically, pretreatment process and one of the step of most critical in S1 step, the step is indispensable.If steel
Matrix surface is handled without oxide skin removal, and later period rusty scale forms time length and is difficult to obtain uniform, fine and close rusty scale.Pass through spray
Ball or pickling make steel surface expose fresh matrix.S2 and S3 step is by equably spraying pretreatment fluid weather-proof
Steel surface, the ion deposition in pretreatment fluid carry out chemical reaction process between its surface, with weather-proof steel matrix, become and corroded
The cathode and anodic process of journey.It should be noted that pretreatment fluid must be sprayed equably, cover weather-proof steel surface uniform throughout
Lid treatment fluid, this is the premise for forming stable, uniform, fine and close rusty scale the later period.S4 step carries out continual spray into S6 step
Water, it is therefore an objective to cause weather-proof steel surface it is dry/process of wet alternate, the formation of weathering steel rusty scale just because of weather-proof steel surface after
The result of dry/wet alternate process.But dry/wet alternate time ratio needs to control, and finds through a large number of experiments, surface water spray is primary
Afterwards, through 50 seconds or so weather-proof steel surfaces i.e. without obvious water droplet, surface is in the state of " dry "；And then it sprays water 5-10 seconds, it is weather-proof
Steel surface is in the state of " wet ".It is such a to do/wet alternate cyclic process about 1 minute.If water spraying time is too long, will cause
The existing initial rusty scale in surface is destroyed, and weather-proof steel surface because humidity it is big, dissolved oxygen diffusion is slow, cause cathodic process to be obstructed,
Corrosion process is impacted, is unfavorable for quickly generating for rusty scale.Rationally control water spraying time i.e. dry/wet alternate time ratio, is this hair
A bright innovative point.In S7 step, weathering steel initial stage rusty scale is slower, needs constantly to undergo dry/wet alternate process, to be formed
After certain thickness uniform, fine and close rusty scale, later period rusty scale gradually tends towards stability.
To sum up, this method is directly handled exposed weather-proof steel surface using self-control treatment fluid.Wherein, treatment fluid
Middle Cr2(SO4)3Promote the formation of alpha-feooh in the stabilization rusty scale of weather-proof steel surface, FeSO4In accelerated corrosion and stable rusty scale
The formation of alpha-feooh, CuSO4And NiSO4Addition so that Cu and Ni be enriched in rusty scale enhance its corrosion resistance, uniformly caused
Close rusty scale, weathering steel is more beautiful in use after this processing, while being also prevented from the loss of rust liquid, avoids
The sagging phenomenon of rust liquid, reduces the pollution to environment.This is also a bright spot of the invention.
Embodiment 1
Weathering steel surface preparation liquid in a kind of industrial atmosphere provided by the invention, in pretreatment fluid each chemical constituent and its
Mass fraction are as follows: 1%Cr2(SO4)3, 0.6%FeSO4, 0.3%CuSO4, 0.6%NaHSO3, 0.5%NiSO4, surplus H2O。
Concrete operations technique:
After weathering steel matrix surface is removed surface scale by shot-peening or the method for pickling, by prepared weathering steel
Surface preparation liquid pours into sprayer, equably sprays 5 seconds to weather-proof steel surface into brown in steel surface, has sprayed primary
Afterwards, weather-proof steel surface naturally dry is allowed；After weathering steel dry tack free, 5 seconds are sprayed water once；It once sprays water to weather-proof steel surface dry
After dry, it is primary for 5 seconds every time to continue water spray；After weathering steel surface second water spray is dry, it is for 5 seconds to continue water spray third time；
Repeat above-mentioned spray process liquid-drying-spray water-drying-spray water-drying-spray water-dry process 2 times, be always maintained at spray later
Water-dry process is to guarantee the rusty scale of one layer of weathering steel Surface Creation uniformly, fine and close.
The weathering steel that obtains after the processing of preprocessed liquid passes through comparison diagram 1 and figure as shown in Fig. 2, Fig. 1 is weathering steel original appearance
2 it is found that the steel substrate surface by weathering steel pretreatment fluid provided by the invention and preprocess method treated weathering steel generates
The protection rusty scale of one layer of even compact.
Embodiment 2
Weathering steel surface preparation liquid in a kind of industrial atmosphere provided by the invention, in pretreatment fluid each chemical constituent and its
Mass fraction are as follows: 2%Cr2(SO4)3, 0.3%FeSO4, 0.6%CuSO4, 1.2%NaHSO3, 1.0%NiSO4, surplus H2O。
Concrete operations technique:
After weathering steel matrix surface is removed surface scale by shot-peening or the method for pickling, by prepared weathering steel
Surface preparation liquid pours into sprayer, equably sprays 6 seconds to weather-proof steel surface into brown in steel surface, has sprayed primary
Afterwards, weather-proof steel surface naturally dry is allowed；After weathering steel dry tack free, 6 seconds are sprayed water once；It once sprays water to weather-proof steel surface dry
After dry, it is primary for 6 seconds every time to continue water spray；After weathering steel surface second water spray is dry, it is for 6 seconds to continue water spray third time；
Repeat above-mentioned spray process liquid-drying-spray water-drying-spray water-drying-spray water-dry process 2 times, be always maintained at spray later
Water-dry process is to guarantee the rusty scale of one layer of weathering steel Surface Creation uniformly, fine and close.
By above-mentioned steps, the rusty scale finally obtained is uniform, fine and close, and rusty scale colour consistency is good, and the rustless liquid stream in surface
The phenomenon that extension.
Embodiment 3
Weathering steel surface preparation liquid in a kind of industrial atmosphere provided by the invention, in pretreatment fluid each chemical constituent and its
Mass fraction are as follows: 0.5%Cr2(SO4)3, 1.2%FeSO4, 0.15%CuSO4, 0.32%NaHSO3, 0.92%NiSO4, surplus
For H2O。
Concrete operations technique:
After weathering steel matrix surface is removed surface scale by shot-peening or the method for pickling, by prepared weathering steel
Surface preparation liquid pours into sprayer, equably sprays 7 seconds to weather-proof steel surface into brown in steel surface, has sprayed primary
Afterwards, weather-proof steel surface naturally dry is allowed；After weathering steel dry tack free, 7 seconds are sprayed water once；It once sprays water to weather-proof steel surface dry
After dry, it is primary for 7 seconds every time to continue water spray；After weathering steel surface second water spray is dry, it is for 7 seconds to continue water spray third time；
Repeat above-mentioned spray process liquid-drying-spray water-drying-spray water-drying-spray water-dry process 3 times, be always maintained at spray later
Water-dry process is to guarantee the rusty scale of one layer of weathering steel Surface Creation uniformly, fine and close.
Embodiment 4
Weathering steel surface preparation liquid in a kind of industrial atmosphere provided by the invention, in pretreatment fluid each chemical constituent and its
Mass fraction are as follows: 1.92%Cr2(SO4)3, 1.12%FeSO4, 0.12%CuSO4, 0.4%NaHSO3, 0.2%NiSO4, surplus
For H2O。
Concrete operations technique:
After weathering steel matrix surface is removed surface scale by shot-peening or the method for pickling, by prepared weathering steel
Surface preparation liquid pours into sprayer, equably sprays 8 seconds to weather-proof steel surface into brown in steel surface, has sprayed primary
Afterwards, weather-proof steel surface naturally dry is allowed；After weathering steel dry tack free, 8 seconds are sprayed water once；It once sprays water to weather-proof steel surface dry
After dry, it is primary for 8 seconds every time to continue water spray；After weathering steel surface second water spray is dry, it is for 8 seconds to continue water spray third time；
Repeat above-mentioned spray process liquid-drying-spray water-drying-spray water-drying-spray water-dry process 4 times, be always maintained at spray later
Water-dry process is to guarantee the rusty scale of one layer of weathering steel Surface Creation uniformly, fine and close.
Embodiment 5
Weathering steel surface preparation liquid in a kind of industrial atmosphere provided by the invention, in pretreatment fluid each chemical constituent and its
Mass fraction are as follows: 1.5%Cr2(SO4)3, 1.0%FeSO4, 0.2%CuSO4, 0.8%NaHSO3, 0.7%NiSO4, surplus is
H2O。
Concrete operations technique:
After weathering steel matrix surface is removed surface scale by shot-peening or the method for pickling, by prepared weathering steel
Surface preparation liquid pours into sprayer, equably sprays 9 seconds to weather-proof steel surface into brown in steel surface, has sprayed primary
Afterwards, weather-proof steel surface naturally dry is allowed；After weathering steel dry tack free, 9 seconds are sprayed water once；It once sprays water to weather-proof steel surface dry
After dry, it is primary for 9 seconds every time to continue water spray；After weathering steel surface second water spray is dry, it is for 9 seconds to continue water spray third time；
Repeat above-mentioned spray process liquid-drying-spray water-drying-spray water-drying-spray water-dry process 5 times, be always maintained at spray later
Water-dry process is to guarantee the rusty scale of one layer of weathering steel Surface Creation uniformly, fine and close.
Embodiment 6
Weathering steel surface preparation liquid in a kind of industrial atmosphere provided by the invention, in pretreatment fluid each chemical constituent and its
Mass fraction are as follows: 1.2%Cr2(SO4)3, 0.5%FeSO4, 0.4%CuSO4, 0.52%NaHSO3, 0.8%NiSO4, surplus is
H2O。
Concrete operations technique:
After weathering steel matrix surface is removed surface scale by shot-peening or the method for pickling, by prepared weathering steel
Surface preparation liquid pours into sprayer, equably sprays 10 seconds to weather-proof steel surface into brown in steel surface, has sprayed one
After secondary, weather-proof steel surface naturally dry is allowed；After weathering steel dry tack free, 10 seconds are sprayed water once；It is once sprayed to weather-proof steel surface
After water is dry, it is primary for 10 seconds every time to continue water spray；After weathering steel surface second water spray is dry, continues water spray third time and continue
10 seconds；Repeat above-mentioned spray process liquid-drying-spray water-drying-spray water-drying-spray water-dry process 6 times, protect always later
Water spray-dry process is held to guarantee the rusty scale of one layer of weathering steel Surface Creation uniformly, fine and close.
By above-mentioned steps, the rusty scale finally obtained is uniform, fine and close, and rusty scale colour consistency is good, and the rustless liquid stream in surface
The phenomenon that extension.
The present invention does not reset comparative example, and using pretreatment fluid provided by the invention and preprocess method, that treated is weather-proof
Steel can be compared with the exposed weathering steel in atmospheric environment.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.
Claims (4)
1. one kind is used for the stabilized pretreatment fluid of Surface Rust of Weathering Steel, which is characterized in that each chemistry in the pretreatment fluid
Component and its mass fraction are as follows: Cr2(SO4)3: 1.0~1.5%, FeSO4: 0.5~1.0%, CuSO4: 0.2~0.5%,
NaHSO3: 0.5~1.0% and NiSO4: 0.5~0.8%, surplus H2O；The pretreatment fluid is for weathering steel in industrial atmosphere
Surface preparation.
2. according to claim 1 be used for the stabilized pretreatment fluid of Surface Rust of Weathering Steel, feature exists, the pre- place
Manage each chemical constituent and its mass fraction in liquid are as follows: Cr2(SO4)3: 1.2%, FeSO4: 1.0%, CuSO4: 0.2~0.4%,
NaHSO3: 0.5~0.8% and NiSO4: 0.5~0.7%, surplus H2O。
3. according to claim 1 be used for the stabilized pretreatment fluid of Surface Rust of Weathering Steel, feature exists, the pre- place
Manage each chemical constituent and its mass fraction in liquid are as follows: 1.5%Cr2(SO4)3, 1.0%FeSO4, 0.2%CuSO4, 0.8%
NaHSO3, 0.7%NiSO4, surplus H2O。
4. one kind is used for the stabilized preprocess method of Surface Rust of Weathering Steel, which is characterized in that using such as claims 1 to 3
Any one of described in pretreatment fluid, comprising the following steps:
S1. weathering steel matrix surface is cleaned；
S2. the pretreatment fluid is prepared；
S3. pretreatment fluid is sprayed to weather-proof steel surface, after spray is primary, naturally dry；
S4. the weather-proof steel surface water spray dried three times, need to allow weather-proof steel surface naturally dry before water spray every time；
S4 is repeated more than twice, until one layer of uniform and fine and close rusty scale of weathering steel Surface Creation；
In S1 step, the oxide skin of the weathering steel matrix surface is removed using shot-peening or the method for pickling；
In the S3 step, the spray pretreatment fluid is sprayed using sprayer, and spray time is 5~10 seconds；
In S4 step, the water spray is sprayed using sprayer, and each spray time is 5~10 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810620156.8A CN108660447B (en) | 2018-06-15 | 2018-06-15 | For the stabilized pretreatment fluid of Surface Rust of Weathering Steel and preprocess method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810620156.8A CN108660447B (en) | 2018-06-15 | 2018-06-15 | For the stabilized pretreatment fluid of Surface Rust of Weathering Steel and preprocess method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108660447A CN108660447A (en) | 2018-10-16 |
| CN108660447B true CN108660447B (en) | 2019-11-22 |
Family
ID=63775792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810620156.8A Active CN108660447B (en) | 2018-06-15 | 2018-06-15 | For the stabilized pretreatment fluid of Surface Rust of Weathering Steel and preprocess method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108660447B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850533A (en) * | 2019-04-30 | 2020-10-30 | 宝山钢铁股份有限公司 | Bare weathering steel with stable rust layer and manufacturing method thereof |
| CN110093599B (en) * | 2019-05-15 | 2021-04-20 | 北京创氪材料科技有限公司 | Stabilizer for promoting formation of weathering steel rust layer and preparation method of weathering steel rust layer |
| CN110872462B (en) * | 2019-10-31 | 2021-08-10 | 洛阳双瑞特种装备有限公司 | Weather-resistant steel surface stabilizing treatment fluid for marine atmospheric environment |
| CN111733413A (en) * | 2020-07-04 | 2020-10-02 | 北京首钢建设集团有限公司 | Weathering construction method for weathering resistant steel |
| CN112593222A (en) * | 2020-12-02 | 2021-04-02 | 南京钢铁股份有限公司 | Acceleration stabilization treatment method for weather-resistant steel rust layer |
| CN113652680B (en) * | 2021-08-16 | 2022-12-13 | 兰州理工大学 | Weather-resistant steel surface stabilizing treatment agent suitable for industrial atmospheric environment and treatment method |
| CN117070930A (en) * | 2022-05-10 | 2023-11-17 | 宝山钢铁股份有限公司 | Stabilizing treatment fluid, treatment process and application of 690 MPa-level weather-resistant bridge steel member |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925884A (en) * | 2012-11-29 | 2013-02-13 | 北京科技大学 | Hydrojet pretreatment method for accelerating stabilization of rust layer on surface of weathering resistant steel |
| CN106835092A (en) * | 2017-02-09 | 2017-06-13 | 首钢总公司 | A kind of processing method of surface of steel plate generation stabilization rusty scale |
| CN106967968A (en) * | 2017-04-24 | 2017-07-21 | 贵州省材料产业技术研究院 | High-efficiency environment friendly steel derusting conjunctiva agent and preparation method thereof |
-
2018
- 2018-06-15 CN CN201810620156.8A patent/CN108660447B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925884A (en) * | 2012-11-29 | 2013-02-13 | 北京科技大学 | Hydrojet pretreatment method for accelerating stabilization of rust layer on surface of weathering resistant steel |
| CN106835092A (en) * | 2017-02-09 | 2017-06-13 | 首钢总公司 | A kind of processing method of surface of steel plate generation stabilization rusty scale |
| CN106967968A (en) * | 2017-04-24 | 2017-07-21 | 贵州省材料产业技术研究院 | High-efficiency environment friendly steel derusting conjunctiva agent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108660447A (en) | 2018-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108660447B (en) | For the stabilized pretreatment fluid of Surface Rust of Weathering Steel and preprocess method | |
| CN108754474B (en) | A kind of stabilized treatment fluid of acceleration weathering steel rusty scale | |
| CN109402699A (en) | A kind of aluminum alloy surface acid resistance corrosion function ceramic membrane preparation process | |
| CN107740085B (en) | A kind of composite coloured passivating solution of environment-friendly type and preparation method thereof | |
| CN110872462B (en) | Weather-resistant steel surface stabilizing treatment fluid for marine atmospheric environment | |
| CN107858672B (en) | Treatment liquid for regulating and controlling color of rust layer on surface of weathering resistant steel and treatment method thereof | |
| CN108396315A (en) | A kind of weathering steel surface stabilization rusty scale quickly generates inorganic agent and its application method | |
| Eyraud et al. | Morphology and composition of electrodeposited zinc-manganese alloys | |
| CN110408917A (en) | A kind of low cost weathering steel rust plate producing process | |
| CN100532476C (en) | Surface antiseptic treating agent for cable bridge frame | |
| CN108998784B (en) | Treatment agent and method for quickly generating rust layer on surface of weathering resistant steel without chloride ions | |
| JP3345023B2 (en) | Surface treatment agent for steel and surface treated steel | |
| CN111876767B (en) | Weather-resistant steel rust layer stabilizing treatment agent and use method thereof | |
| CN107794523B (en) | Rapid corrosion method for weather-resistant steel plate | |
| JPS581093A (en) | Method for forming protective film on surface of magnesium material | |
| CN105220140B (en) | A kind of corrosion-resistant protective layer of steel piece decorative surface and its preparation method and application | |
| CN107620024B (en) | A kind of marine anticorrosion inorganic coating and preparation method thereof | |
| CN105803440B (en) | A kind of carbon steel, galvanized sheet, aluminium are the same as rooved face pretreating agent, preparation method and metal surface pretreatment | |
| CA2188661A1 (en) | Artificial patina | |
| CN109023336A (en) | A kind of environment-friendly type rare-earth salts color passivation solution and preparation method thereof | |
| KR101741011B1 (en) | Metal materials and manufacturing methods having various colored metal oxide film | |
| CN108950531A (en) | A kind of environment friendly silicon hydrochlorate golden yellow passivating solution and preparation method thereof | |
| CN115821249A (en) | Green and environment-friendly rust liquid for stabilizing surface rust layer of large-area weathering steel and spraying use method thereof | |
| Junxi et al. | The growth mechanism of the coloured passive film formed on 304 stainless steel in sulfuric solution without Cr6+ ion by using AV passivation | |
| Wilcox | Surface modification with compositionally modulated multilayer coatings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |