CN100577876C - Rust conversion and rust-proof coating agent for construction steel structure and its usage method - Google Patents
Rust conversion and rust-proof coating agent for construction steel structure and its usage method Download PDFInfo
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- CN100577876C CN100577876C CN200710050532A CN200710050532A CN100577876C CN 100577876 C CN100577876 C CN 100577876C CN 200710050532 A CN200710050532 A CN 200710050532A CN 200710050532 A CN200710050532 A CN 200710050532A CN 100577876 C CN100577876 C CN 100577876C
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Abstract
The invention discloses a steel structural rust conversion anti-rust paint used in building. The formulation is that rust conversion agent of polyatomic acid is 300-700 parts, gelling agent is 20-40 parts, atmospheric inhibitor is 1-2 parts, penetrating agent is 0.5-1 parts, organic silicon defoaming agent is 0.1-0.5 parts, and water is 256-678 parts. The steps of usage of the invention include that the components are sequentially added in a reaction tank, mixed and stirred for about 50 minutes under the temperature of 40-60 DEG C, and cooled and filtered to prepare the steel structural rust conversion anti-rust paint. The steel structural rust conversion anti-rust paint is directly brushed on the surface of steel products to remove greasy dirt, mud and sand, and dust which are on the surface of constructional steel structure. The steel products which are coated with the rust conversion anti-rust paint are placed in the air for 1-2 hours, and then are processed via oil paint construction. The rust conversion anti-rust paint has the advantages of thorough rust conversion, simple construction, economy and efficiency, energy-saving, environmental protection and the like, and is capable of strengthening the anti-rust and anti-fire property of the oil paint and increasing the inherent quality of the oil paint.
Description
Technical field
The present invention relates to chemical material field, be specifically related to a kind of rust cleaning of construction steel structure material, etch-proof rust conversion and rust-proof coating agent and using method thereof of being used for.
Background technology
Iron and steel is the unsettled the most frequently used structured material of thermodynamic property, is exposed to burn into must take place in the atmosphere change into loose iron rust.Various hardwares of China and equipment, the annual loss that causes because of corrosion is up to hundred million yuan of 100-150.Corrosion is in the application and rot-resistant engineering of purpose on protection construction steel structure surface, and rust cleaning is very important and requisite processing step.
The big key problem in technology of in the steel building use two: the one, antirust, the 2nd, fire prevention.This need solve by application (paint) technology, and before the oil paint coating, thoroughly rust cleaning is the important assurance that improves the paint inner quality.Be all kinds of factory buildings, pipeline, bridge, pylon of structured material etc. with the iron and steel, the major reason that anti-corrosion capability is not high except that the quality of paint itself, thinks little of Coating Pretreatment exactly.At present, the current methods of rust cleaning mainly contains two classes before the application of China's steel building:
1, mechanical ball blast or derusting by sandblast: promptly the shot or the grains of sand are ejected into the steel surface that gets rusty, iron rust is ground off by high pressure gas.Mainly be that steel structure company, main equipment manufacturing enterprise use, need the splashing device of cost units up to a million, surpass 1.6 meters long steel parts and be awkward, the angle of complex component is difficult for Ex-all, be not suitable for the thin-walled steel, and environmental pollution is bigger, the cost of handling one ton of steel is higher.
2, manual or electronic sand milling rust cleaning: promptly artificial sand papering or electric wheel polishing rust cleaning.Be mainly used in the preceding processing of rust removing of working-yard paint, it is not thorough to eliminate rust, member angle, the more difficult Ex-all in weld, be to cause the not high major reason of paint inner quality, often occur corrosion in a short time again, and, labour intensity height, time-consuming, construction speed is slow.
Summary of the invention
The objective of the invention is to overcome above-mentioned technical deficiency, a kind of construction steel structure rust conversion and rust-proof coating agent is provided, this rust conversion and rust-proof coating agent has advantages such as rust cleaning is thorough, construction is simple, advanced technology, economical and efficient, non-environmental-pollution, can also strengthen the antirust and fire resistance property of paint, improve the inner quality of paint.
For reaching the foregoing invention purpose, the technical scheme that is adopted is: a kind of rust conversion and rust-proof coating agent for construction steel structure is characterized in that each component of described rust conversion and rust-proof coating agent and quality proportioning thereof are:
Polyprotonic acid changes rust agent 300-700 part
Jelling agent 20-40 part
Atmosphere inhibiter 1-2 part
Permeate agent 0.5-1 part
Silicone antifoam agent 0.1-0.5 part
Water 256-678 part
According to rust conversion and rust-proof coating agent for construction steel structure provided by the invention, it is characterized in that it is C that described polyprotonic acid changes rust agent main component
6H
2(OH)
3COOHH
2O, H
3PO
4, C
76H
52O
46And C
6H
8O
7H
2O.
According to rust conversion and rust-proof coating agent for construction steel structure provided by the invention, it is characterized in that described jelling agent main component is an aluminum phosphate.
According to rust conversion and rust-proof coating agent for construction steel structure provided by the invention, it is characterized in that described atmosphere inhibiter main component is C
7H
5NS.
According to rust conversion and rust-proof coating agent for construction steel structure provided by the invention, it is characterized in that described permeate agent main component is the fatty alcohol-polyoxyethylene ether high molecular polymer.
According to rust conversion and rust-proof coating agent for construction steel structure provided by the invention, it is characterized in that described silicone antifoam agent main component is the organosilicon macromolecule polymkeric substance.
According to rust conversion and rust-proof coating agent for construction steel structure provided by the invention, it is characterized in that described water is pure water.
A kind of using method of above-mentioned rust conversion and rust-proof coating agent for construction steel structure is characterized in that, this method comprises the steps:
A, listed each component in the described prescription of claim 1 is added in the reaction cylinder successively, stirred about 50 minutes mixing under the 40-60 ℃ of temperature condition, cooling, filter, make steel construction rust conversion and rust-proof coating agent finished product;
Greasy dirt, silt particle and the dust on B, removing construction steel structure surface are directly brushed this product at the steel surface of being with oxide skin or iron rust with the wool brush, make surperficial complete wetting;
Under C, the normal temperature, the steel construction piece that scribbles rust conversion and rust-proof coating agent was placed air 1-2 hour, carry out paint application then.
The advantage of rust conversion and rust-proof coating agent for construction steel structure provided by the invention:
1, have rust cleaning, antirust dual-use function: iron rust, the oxide skin of thickness in 100um, directly brushing can thoroughly be transformed Ex-all.Show with the NSS test that D609 " the standard implementation standard that the test of coating, varnish, conversion coating and relevant coating product prepares with cold bundle steel plate " carries out artificial accelerated corrosion according to GB/T 1771-91 " mensuration of the anti-neutral salt spray performance of paint and varnish ":
As seen, using rust conversion and rust-proof coating agent for construction steel structure provided by the invention not only to eliminate rust, clean thoroughly and the conversion rete that forms can effectively improve the anti-corrosion capability of paint, and its rust inhibition is equivalent to one deck red lead primer.
2, energy-conserving and environment-protective: traditional mechanical ball blast, derusting by sandblast consumes energy, contaminate environment.Manual, electronic polishing rust cleaning labour intensity is big, and at the bottom of the efficient, it is not thorough to eliminate rust.Acid pickling and rust removing exists a large amount of discharge of wastewater, contaminate environment.Rust conversion and rust-proof coating agent for construction steel structure provided by the invention can substitute traditional derusting method fully; belong to energy saving and environment friendly product; water-soluble non-toxic is tasteless; mono-component liquid; can construct as paint brush, brushing, roller coating, spraying all can, avoided noise and the dust pollution of ball blast, sandblast; also avoid the sewage discharge of acid washing phosphorization, protected Working environment and physical environment effectively.
3, harmless iron and steel: construction steel structure corrosion preventive pigment provided by the invention is applicable to steel, cast iron, the iron alloy of all kinds of labels, only have an effect with its corrosion product, do not influence the chemistry and the mechanical mechanics property of iron and steel, as tensile strength, elongation, yield-point, cold-bending property, impelling strength etc.
4, with paint bonding force strong, conformability good: rust conversion and rust-proof coating agent for construction steel structure provided by the invention the rust cleaning process in, make a concerted effort and the base metal mortise by molecular linkage, simultaneously, the antirust rete that forms is smooth and tight, be the microcosmic reticulated structure, the paint polymer infiltrates wherein, and therefore the bonding force with paint is stronger.This rete can be used with all kinds of paint (red lead, phenolic aldehyde, pitch, amino, alkyd, nitro, polyester, epoxy, ethene, urethane, vinylformic acid etc.), cream ash, coating (frie retardant coating, powder coating etc.), does not have intermiscibility problems such as paint is wrinkling, bubbling.
5, easy to use: directly brushing is promptly finished transforming rust cleaning, and can be carried out paint application at the steel surface that has iron rust, oxide skin after 1-2 hour spring and summer, 2-4 hour autumn and winter.No longer use splashing device, be not subjected to the moulding and the size impact of steel member complexity, can site operation.
6, with low cost: with steel structure company is example, and the cost that adopts shot blasting to handle 1 ton of steel is a 150-200 unit, and the comprehensive cost that adopts 1 ton of steel of this product processing of rust removing is about 110 yuan, saves use cost more than 30%.With the building site construction is example, adopts 4 hours the work of 2 people that eliminates rust of electric hand sand milling, adopts this product only to need 1 people can finish in 1 hour, greatly reduces labour intensity, has saved time cost, has improved construction speed.
Embodiment
Below the present invention is further described.
A kind of rust conversion and rust-proof coating agent for construction steel structure is characterized in that, each component of described rust conversion and rust-proof coating agent and quality proportioning thereof are: polyprotonic acid changes rust agent 300-700 part; Jelling agent 20-40 part; Atmosphere inhibiter 1-2 part; Permeate agent 0.5-1 part; Silicone antifoam agent 0.1-0.5 part; Water 256-678 part.
It is C that described polyprotonic acid changes rust agent main component
6H
2(OH)
3COOHH
2O, H
3PO
4, C
76H
52O
46And C
6H
8O
7H
2O; Described jelling agent main component is an aluminum phosphate; Described atmosphere inhibiter main component is C
7H
5NS; Described permeate agent main component is the fatty alcohol-polyoxyethylene ether high molecular polymer; Described silicone antifoam agent main component is the organosilicon macromolecule polymkeric substance; Described water is pure water.
The using method of above-mentioned rust conversion and rust-proof coating agent for construction steel structure comprises the steps:
A, listed each component in the described prescription of claim 1 is added in the reaction cylinder successively, stirred about 50 minutes mixing under the 40-60 ℃ of temperature condition, cooling, filter, make steel construction rust conversion and rust-proof coating agent finished product;
Greasy dirt, silt particle and the dust on B, removing construction steel structure surface are directly brushed this product at the steel surface of being with oxide skin or iron rust with the wool brush, make surperficial complete wetting;
Under C, the normal temperature, the steel construction piece that scribbles rust conversion and rust-proof coating agent was placed air 1-2 hour, carry out paint application then.
Embodiment 1:
Select C for use by equivalent
6H
2(OH)
3COOHH
2O and C
76H
52O
46The polyprotonic acid of forming changes rust agent 500g, jelling agent 20g, atmosphere inhibiter 1g, permeate agent 0.5g, silicone antifoam agent 0.5g, surplus is a water, add in the reaction cylinder successively, mixing was stirred 48 minutes under 40 ℃ of temperature, and cooling, filtration make the steel construction rust conversion and rust-proof coating agent finished product 1L that is yellow liquid state.
Embodiment 2:
Selecting for use by mass ratio is 3: 1 C
6H
2(OH)
3COOHH
2O and C
6H
8O
7H
2The polyprotonic acid that O forms changes rust agent 600g, jelling agent 30g, atmosphere inhibiter 1.5g, permeate agent 0.6g, silicone antifoam agent 0.4g, surplus is a water, add in the reaction cylinder successively, mix under 40 ℃ of temperature and stirred 50 minutes, cooling, filtration make the steel construction rust conversion and rust-proof coating agent finished product 1L that is colorless liquid.
Embodiment 3:
Selecting for use by mass ratio is 3: 1 H
3PO
4And C
6H
8O
7H
2The polyprotonic acid that O forms changes rust agent 400g, jelling agent 25g, atmosphere inhibiter 2g, permeate agent 0.9g, silicone antifoam agent 0.1g, surplus is a water, add in the reaction cylinder successively, mix under 40 ℃ of temperature and stirred 51 minutes, cooling, filtration make the steel construction rust conversion and rust-proof coating agent finished product 1L that is colorless liquid.
Embodiment 4:
Selecting for use by mass ratio is 2: 2: 1 C
6H
2(OH)
3COOHH
2O, C
76H
52O
46And C
6H
8O
7H
2The polyprotonic acid that O forms changes rust agent 350g, jelling agent 40g, atmosphere inhibiter 2g, permeate agent 1g, silicone antifoam agent 0.5g, the water of surplus adds in the reaction cylinder successively, mixing was stirred 55 minutes under 40 ℃ of temperature, and cooling, filtration make the steel construction rust conversion and rust-proof coating agent finished product 1L that is yellow liquid state.
The steel construction rust conversion and rust-proof coating agent using method that aforesaid method makes: greasy dirt, silt particle, the dust of removing the construction steel structure surface, this product is directly brushed at the steel surface of being with oxide skin or iron rust with the wool brush, become rusty thick overbrushing, rust is thin is coated with less, make surperficial complete wetting, iron rust can be transformed Ex-all in 1-2 hour under the normal temperature, and form the antirust rete of grey black closely, and then carry out paint application at steel surface.Facts have proved, the steel structure material after handling like this, the inner quality of paint significantly improves, and the protection against corrosion time prolongs greatly, has certain fire resistance simultaneously concurrently.
Rust conversion and rust-proof coating agent for construction steel structure provided by the invention is yellow or water white transparency thick liquid, and is nonpoisonous and tasteless, and has water-soluble.In the time of 20 ℃, the density of this construction steel structure corrosion preventive pigment is 1.30 ± 0.5g/cm
3, viscosity is 13 ± 0.5s.Use after 2 hours, iron rust is converted into grey black fully, does not have dirt settlings such as visible dirt, oxide skin, iron rust.
Use the technical parameter of rust conversion and rust-proof coating agent for construction steel structure gained coating provided by the invention as shown in the table:
| The rete outward appearance | The brilliant black grey |
| Surface drying (h room temperature) | 1.5 |
| Do solid work (h room temperature) | 22 |
| Rub resistance | Easily polishing, not scab |
| Snappiness | 1mm |
| Shock strength (kg.cm) | 50 |
| Sticking power (level) | 1 |
Claims (2)
1, a kind of rust conversion and rust-proof coating agent for construction steel structure is characterized in that, each component of described rust conversion and rust-proof coating agent and quality proportioning thereof are:
Polyprotonic acid changes rust agent 300-700 part;
Jelling agent 20-40 part;
Atmosphere inhibiter 1-2 part;
Permeate agent 0.5-1 part;
Silicone antifoam agent 0.1-0.5 part;
Water 256-678 part;
It is C that described polyprotonic acid changes rust agent main component
6H
2(OH)
3COOHH
2O, H
3PO
4, C
76H
52O
46And C
6H
8O
7H
2O;
Described jelling agent main component is an aluminum phosphate;
Described atmosphere inhibiter main component is C
7H
5NS;
Described permeate agent main component is the fatty alcohol-polyoxyethylene ether high molecular polymer;
Described silicone antifoam agent main component is the organosilicon macromolecule polymkeric substance;
Described water is pure water.
2, the using method of the described rust conversion and rust-proof coating agent for construction steel structure of a kind of claim 1 is characterized in that, this method comprises the steps:
A, listed each component in the claim 1 is added in the reaction cylinder successively, under 40-60 ℃ of temperature condition, mix and stirred 50 minutes, cooling, filter, make steel construction rust conversion and rust-proof coating agent finished product;
Greasy dirt, silt particle and the dust on B, removing construction steel structure surface are directly brushed this product at the steel surface of being with oxide skin or iron rust with the wool brush, make surperficial complete wetting;
Under C, the normal temperature, the steel construction piece that scribbles rust conversion and rust-proof coating agent was placed air 1-2 hour, carry out paint application then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710050532A CN100577876C (en) | 2007-11-16 | 2007-11-16 | Rust conversion and rust-proof coating agent for construction steel structure and its usage method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710050532A CN100577876C (en) | 2007-11-16 | 2007-11-16 | Rust conversion and rust-proof coating agent for construction steel structure and its usage method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101187026A CN101187026A (en) | 2008-05-28 |
| CN100577876C true CN100577876C (en) | 2010-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710050532A Active CN100577876C (en) | 2007-11-16 | 2007-11-16 | Rust conversion and rust-proof coating agent for construction steel structure and its usage method |
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| CN (1) | CN100577876C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337529A (en) * | 2011-11-07 | 2012-02-01 | 大连三达奥克化学股份有限公司 | Building deformed steel bar passivation antirusting agent and preparation method thereof |
| CN103590051A (en) * | 2013-11-29 | 2014-02-19 | 上海金田除锈防锈有限公司 | Steel structure environmental protection aqueous rust removal antirust agent |
| CN107587137B (en) * | 2017-01-06 | 2019-10-11 | 青岛科技大学 | A kind of long-acting type antirust for metal surface turn rust agent |
| CN106903029A (en) * | 2017-03-31 | 2017-06-30 | 叶云川 | A kind of steel construction and equipment paint renovation coating process |
| CN106903030A (en) * | 2017-03-31 | 2017-06-30 | 叶云川 | A kind of steel construction and the full environmental protection coating process of equipment |
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| CN101187026A (en) | 2008-05-28 |
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