CN103555104A - High molecular material special for corrosion prevention of steel and iron, and preparation method and application process thereof - Google Patents
High molecular material special for corrosion prevention of steel and iron, and preparation method and application process thereof Download PDFInfo
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- CN103555104A CN103555104A CN201310498717.9A CN201310498717A CN103555104A CN 103555104 A CN103555104 A CN 103555104A CN 201310498717 A CN201310498717 A CN 201310498717A CN 103555104 A CN103555104 A CN 103555104A
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Abstract
The invention discloses a high molecular material special for corrosion prevention of steel and iron. The high molecular material is composed of the following components: 1%-5% of defoamer, 1%-5% of dispersant, 1%-5% of antirust agent, 1%-5% of preservative, 30%-60% of water-based acrylic resin, 5%-15% of water-based saturated polyester resin, 1%-5% of color paste and the balance of water. The invention also discloses a preparation method and an application process of the high molecular material. The high molecular material provided by the invention is capable of utilizing residual heat after the processing of steel and iron workpieces at high efficiency; a layer of high molecular thin film which is high in adhesion and good in compactness can be formed on the surface of a steel and iron workpiece through vapor deposition and a thermal polymerization reaction; and as a result, the corrosion resistance of the steel and iron workpiece is improved. The preparation method of the high molecular material provided by the invention is simple and easy to operate; the application process is simple, and can be used for production in match with forging equipment and heat treatment equipment; and consequently, the production labor intensity is reduced, the energy consumption is reduced and the efficiency is improved; moreover, the application process is low in cost, safe and environment-friendly.
Description
Technical field
The present invention relates to steel anti-corrosive technical field, be specifically related to the special-purpose macromolecular material of a kind of steel anti-corrosive and its preparation method and application technique.
Background technology
Iron and steel parts, after forging process, often needs to carry out antirust, anti-corrosive processing, with this, improves the non-corrosibility of workpiece.Traditional technique is that soda boiling is turned blue, and utilizes NaOH, NaNO
2, Na
3pO
4deng strong oxidizer, at steel surface, form one deck Fe
3o
4film, this layer film can stop the oxidation corrosion of iron and steel inside, thereby plays the effect of protection workpiece.Yet the technique pretreatment procedure that soda boiling is turned blue is very loaded down with trivial details, technique power consumption is large, and efficiency is low, and Working environment is disliked slightly simultaneously, seriously polluted.At present, the soda boiling technique of turning blue is replaced by the remaining temperature blackening of energy-conserving and environment-protective more gradually.
Yu Wen blackout, utilizes the waste heat of workpiece and the heat polymerization of polymer substance in thermal treatment process to form fast one deck rete at steel surface, thereby slows down or stop corrosion of metal, the antiseptic power of enhancing metal.Remaining warm blackening can be utilized the entrained amount of residual heat will of workpiece in thermal treatment process efficiently, efficient energy-saving, and technique is simple simultaneously, safety and environmental protection.Advantage based on above, remaining temperature blackening has obtained using widely at present.But the utilization of Yu Wen blackout also has is worth improving part, is mainly that the resulting adhesive force of this technique is not often very desirable, the compactness of film is unstable simultaneously.
Summary of the invention
The object of this invention is to provide a kind of steel anti-corrosive special use macromolecular material, in solution prior art, in remaining warm blackening, resulting adhesive force is not high, simultaneously the unstable deficiency that waits of the compactness of film.The present invention also provides preparation method and application's technique of this macromolecular material.
For addressing the above problem, the present invention by the following technical solutions:
A special-purpose macromolecular material, by mass percentage, composed of the following components: 1%～5% defoamer, 1%～5% dispersion agent, 1%～5% rust-preventive agent, 1%～5% sanitas, 30%～60% water-borne acrylic resin, 5%～15% water-based saturated polyester resin, 1%～5% mill base, all the other are water, wherein, the viscosity of water-borne acrylic resin is 500～5000mPas, and second-order transition temperature is 70～100 ℃; The viscosity of water-based saturated polyester resin is 3500～5500mpas.
The preparation method of the special-purpose macromolecular material of above-mentioned steel anti-corrosive, comprise the steps: to add the water of formula ratio, add afterwards the defoamer of formula ratio to stir 5～10min, add the dispersion agent of formula ratio to stir 10～30min, add the rust-preventive agent of formula ratio to stir 10～30min, add the sanitas of formula ratio to stir 10～30min, add the water-borne acrylic resin of formula ratio to stir 30～90min, add the water-based saturated polyester resin of formula ratio to stir 30～60min, add the mill base of formula ratio to stir 60～120min.
The application art of the special-purpose macromolecular material of above-mentioned steel anti-corrosive, comprises the steps:
Step 1, by the special-purpose macromolecular material dilute with water of described steel anti-corrosive, wherein the mass concentration of the special-purpose macromolecular material of steel anti-corrosive is 8%～12%;
Step 2, iron and steel parts be through forging after processing, directly iron and steel parts is immersed in to 2～5min in the solution of the special-purpose macromolecular material of steel anti-corrosive that step 1 obtains, and wherein forging processing temperature is 700～1000 ℃; Or iron and steel parts is after tempering process, directly iron and steel parts is immersed in to 20s～2min in the solution of the special-purpose macromolecular material of steel anti-corrosive that step 1 obtains, wherein tempering process temperature is 200 ℃～550 ℃;
Step 3, the iron and steel parts that step 2 is obtained utilize 120 ℃～150 ℃ hot blasts to dry.
Beneficial effect of the present invention:
1, the present invention obtains gas-phase deposition after utilizing at high temperature atomization of organic polymer, with this, guarantees the high compactness of gained film; Utilize heat for motivating force simultaneously, make macromolecule filming component generation heat polymerization, make obtained film be adsorbed on firmly surface of steel workpiece, improve adhesion of thin film, thereby improve the erosion resistance of iron and steel parts.Macromolecular material of the present invention is not subject to limits of color simultaneously.
2, substitute traditional alkalescence technique of turning blue, without discharge, be process for cleanly preparing, simple and practical, than old energy saving technology water saving, decontamination, every processing 1t workpiece 100～150kWh that can economize on electricity, water saving 10m
3, reduce discharging acidic and alkaline waste water 7～8m
3, eliminated the harm of the objectionable impuritiess such as nitrite to human body simultaneously, cost is old technique 1/6～1/5, economic benefit, obvious environment benefit.
3, the present invention is water-based system, and while therefore regulating concentration, thinner used is water, simple, pollution-free.
4, the present invention utilizes efficiently and forges the rear workpiece of processing and the entrained amount of residual heat will of tempering process, reduces energy consumption.
5, operation of the present invention is simple, can form a complete production network with forging processing units or equipment for Heating Processing, and efficiency is high, and cost is low.
6, use the present invention, iron and steel parts is processed front without pickling, need not rinse three-waste free discharge, safety and environmental protection after processing.
7, the iron and steel parts use temperature scope after utilizing the present invention to process is unrestricted, and resistance of aging is strong.
Embodiment
Below in conjunction with embodiment, the present invention is done further and explained.The following example is only for the present invention is described, but is not used for limiting practical range of the present invention.
A special-purpose macromolecular material, by mass percentage, composed of the following components: 1%～5% defoamer, 1%～5% dispersion agent, 1%～5% rust-preventive agent, 1%～5% sanitas, 30%～60% water-borne acrylic resin, 5%～15% water-based saturated polyester resin, 1%～5% mill base, all the other are water.
The viscosity of water-borne acrylic resin is 500～5000mPas, and second-order transition temperature is 70～100 ℃, and that embodiment adopts is the SX-0804 that Foshan Si Xi environment-friendly materials company limited provides.The viscosity of water-based saturated polyester resin is 3500～5500mpas, and that embodiment adopts is the wp530 that Guangzhou Chan Xie polymer company provides.
Following examples, defoamer adopts be Dow Corning Corporation provide 1410 or 1530, dispersion agent adopt be AEO-10, rust-preventive agent that the Dow Chemical Company provides adopt to be the TEA that provides of the Dow Chemical Company, sanitas adopt for Sodium Benzoate, mill base is the L360-84 that Suzhou Sunmun Technology Co., Ltd. provides.
The special-purpose macromolecular material technological process of production of above-mentioned steel anti-corrosive is as follows: the water that adds formula ratio, add afterwards the defoamer of formula ratio to stir 5～10min, add the dispersion agent of formula ratio to stir 10～30min, add the rust-preventive agent of formula ratio to stir 10～30min, add the sanitas of formula ratio to stir 10～30min, add the water-borne acrylic resin of formula ratio to stir 30～90min, add the waterborne polyurethane resin of formula ratio to stir 30～60min, add the mill base of formula ratio to stir 60～120min.
The application art of the special-purpose macromolecular material of above-mentioned steel anti-corrosive, comprises the steps:
Step 1, by the special-purpose macromolecular material dilute with water of described steel anti-corrosive, wherein the mass concentration of the special-purpose macromolecular material of steel anti-corrosive is 8%～12%, being specifically applicable to concentration must determine according to practical condition;
Step 2, iron and steel parts be through forging after processing, directly iron and steel parts is immersed in the solution of the special-purpose macromolecular material of steel anti-corrosive that step 1 obtains and carries out rotproofing 2～5min, and wherein forging processing temperature is 700～1000 ℃; Or iron and steel parts is after tempering process, directly iron and steel parts is immersed in the solution of the special-purpose macromolecular material of steel anti-corrosive that step 1 obtains and carries out rotproofing 20s～2min, wherein tempering process temperature is 200 ℃～550 ℃;
Step 3, the iron and steel parts that step 2 is obtained utilize 120 ℃～150 ℃ hot blasts to dry.
The sematic color of iron and steel parts can be allocated voluntarily according to mill base, the even film layer obtaining and thin, about 15-20um.
Embodiment 1
A special-purpose macromolecular material, by mass percentage, composed of the following components: 3% defoamer, 4% dispersion agent, 2% rust-preventive agent, 3% sanitas, 50% water-borne acrylic resin, 10% water-based saturated polyester resin, 3% mill base, all the other are water.
The special-purpose macromolecular material of above-mentioned steel anti-corrosive, for iron and steel parts rotproofing, comprises the steps:
Step 1, by the special-purpose macromolecular material dilute with water of described steel anti-corrosive, wherein the mass concentration of the special-purpose macromolecular material of steel anti-corrosive is 10%;
Step 2, iron and steel parts be through forging after processing, directly iron and steel parts is immersed in the solution of the special-purpose macromolecular material of steel anti-corrosive that step 1 obtains and carries out rotproofing 5min, and wherein forging processing temperature is 1000 ℃;
Step 3, the iron and steel parts that step 2 is obtained utilize 140 ℃ of hot blasts to dry.
Even film layer prepared by the present embodiment, mean thickness is 17.5um.
Embodiment 2
A special-purpose macromolecular material, by mass percentage, composed of the following components: 1% defoamer, 5% dispersion agent, 5% rust-preventive agent, 1% sanitas, 40% water-borne acrylic resin, 10% water-based saturated polyester resin, 3% mill base, all the other are water.
The special-purpose macromolecular material of above-mentioned steel anti-corrosive, for iron and steel parts rotproofing, comprises the steps:
Step 1, by the special-purpose macromolecular material dilute with water of described steel anti-corrosive, wherein the mass concentration of the special-purpose macromolecular material of steel anti-corrosive is 10%;
Step 2, iron and steel parts, after tempering process, are directly immersed in iron and steel parts in the solution of the special-purpose macromolecular material of steel anti-corrosive that step 1 obtains and carry out rotproofing 2min, and wherein tempering process temperature is 550 ℃;
Step 3, the iron and steel parts that step 2 is obtained utilize 140 ℃ of hot blasts to dry.
Even film layer prepared by the present embodiment, mean thickness is 17um.
Embodiment 3
A special-purpose macromolecular material, by mass percentage, composed of the following components: 1% defoamer, 1% dispersion agent, 1% rust-preventive agent, 1% sanitas, 30% water-borne acrylic resin, 5% water-based saturated polyester resin, 1% mill base, all the other are water.
The special-purpose macromolecular material of above-mentioned steel anti-corrosive, for iron and steel parts rotproofing, comprises the steps:
Step 1, by the special-purpose macromolecular material dilute with water of described steel anti-corrosive, wherein the mass concentration of the special-purpose macromolecular material of steel anti-corrosive is 8%;
Step 2, iron and steel parts be through forging after processing, directly iron and steel parts is immersed in the solution of the special-purpose macromolecular material of steel anti-corrosive that step 1 obtains and carries out rotproofing 2min, and wherein forging processing temperature is 700 ℃;
Step 3, the iron and steel parts that step 2 is obtained utilize 120 ℃ of hot blasts to dry.
Even film layer prepared by the present embodiment, mean thickness is 16.5um.
Embodiment 4
A special-purpose macromolecular material, by mass percentage, composed of the following components: 5% defoamer, 5% dispersion agent, 5% rust-preventive agent, 5% sanitas, 60% water-borne acrylic resin, 15% waterborne polyurethane resin, 5% mill base, all the other are water.
The special-purpose macromolecular material of above-mentioned steel anti-corrosive, for iron and steel parts rotproofing, comprises the steps:
Step 1, by the special-purpose macromolecular material dilute with water of described steel anti-corrosive, wherein the mass concentration of the special-purpose macromolecular material of steel anti-corrosive is 12%;
Step 2, iron and steel parts, after tempering process, are directly immersed in iron and steel parts in the solution of the special-purpose macromolecular material of steel anti-corrosive that step 1 obtains and carry out rotproofing 20s, and wherein tempering process temperature is 200 ℃;
Step 3, the iron and steel parts that step 2 is obtained utilize 150 ℃ of hot blasts to dry.
Even film layer prepared by the present embodiment, mean thickness is 18.5um.
Performance test
Iron and steel parts after embodiment 1～4 is processed carries out following performance test.
Compactness, rust-preventing characteristic, non-corrosibility are with reference to standard GB/T/T15519-2002:
Compactness: the iron and steel parts massfraction after each embodiment processes is that 3% copper-bath drop keeps 12min, all without erythema.
Rust-preventing characteristic: the iron and steel parts massfraction after each embodiment processes is that 3% sodium chloride solution soaks 60min, all without rust staining.
Non-corrosibility: the iron and steel parts massfraction after each embodiment processes is that 5% oxalic acid solution drop keeps 12min, all corrosion-free spot.
Sticking power: by the cross cut test > > with reference to standard GB/T/T9286-1998 < < paint and varnish paint film, through checking each embodiment grade to be 0 grade.
Claims (3)
1. the special-purpose macromolecular material of steel anti-corrosive, is characterized in that, by mass percentage, composed of the following components: 1%～5% defoamer, 1%～5% dispersion agent, 1%～5% rust-preventive agent, 1%～5% sanitas, 30%～60% water-borne acrylic resin, 5%～15% water-based saturated polyester resin, 1%～5% mill base, all the other are water, wherein, the viscosity of water-borne acrylic resin is 500～5000mPas, and second-order transition temperature is 70～100 ℃; The viscosity of water-based saturated polyester resin is 3500～5500mpas.
2. the preparation method of the special-purpose macromolecular material of steel anti-corrosive described in claim 1, it is characterized in that, comprise the steps: to add the water of formula ratio, add afterwards the defoamer of formula ratio to stir 5～10min, add the dispersion agent of formula ratio to stir 10～30min, add the rust-preventive agent of formula ratio to stir 10～30min, add the sanitas of formula ratio to stir 10～30min, add the water-borne acrylic resin of formula ratio to stir 30～90min, add the water-based saturated polyester resin of formula ratio to stir 30～60min, add the mill base of formula ratio to stir 60～120min.
3. the application art of the special-purpose macromolecular material of steel anti-corrosive described in claim 1, comprises the steps:
Step 1, by the special-purpose macromolecular material dilute with water of described steel anti-corrosive, wherein the mass concentration of the special-purpose macromolecular material of steel anti-corrosive is 8%～12%;
Step 2, iron and steel parts be through forging after processing, directly iron and steel parts is immersed in to 2～5min in the solution of the special-purpose macromolecular material of steel anti-corrosive that step 1 obtains; Or iron and steel parts is after tempering process, directly iron and steel parts is immersed in to 20s～2min in the solution of the special-purpose macromolecular material of steel anti-corrosive that step 1 obtains;
Step 3, the iron and steel parts hot-air seasoning that step 2 is obtained.
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| CN106011830A (en) * | 2016-07-29 | 2016-10-12 | 南京科润新材料技术有限公司 | Emulsified blackening liquid |
| CN107699075A (en) * | 2017-09-23 | 2018-02-16 | 宁波英博灵工精密机械有限公司 | A kind of piston rod processing technology |
| CN108300173A (en) * | 2018-02-07 | 2018-07-20 | 东南大学 | A kind of steel surface low temperature exhaust heat blackening agent for surface and its methods for making and using same |
| CN109021800A (en) * | 2018-07-20 | 2018-12-18 | 中山市珍视新材料科技有限公司 | A kind of environment-friendly water-based steel coloring oils one-pass molding preparation |
| CN110527397A (en) * | 2018-05-24 | 2019-12-03 | 中山市珍视新材料科技有限公司 | A kind of aqueous steel surface blackening agent for surface and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011830A (en) * | 2016-07-29 | 2016-10-12 | 南京科润新材料技术有限公司 | Emulsified blackening liquid |
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| CN107699075A (en) * | 2017-09-23 | 2018-02-16 | 宁波英博灵工精密机械有限公司 | A kind of piston rod processing technology |
| CN108300173A (en) * | 2018-02-07 | 2018-07-20 | 东南大学 | A kind of steel surface low temperature exhaust heat blackening agent for surface and its methods for making and using same |
| CN110527397A (en) * | 2018-05-24 | 2019-12-03 | 中山市珍视新材料科技有限公司 | A kind of aqueous steel surface blackening agent for surface and preparation method thereof |
| CN109021800A (en) * | 2018-07-20 | 2018-12-18 | 中山市珍视新材料科技有限公司 | A kind of environment-friendly water-based steel coloring oils one-pass molding preparation |
| CN110643986A (en) * | 2019-10-30 | 2020-01-03 | 湖南金裕环保科技有限公司 | Residual heat blackening agent, preparation method and use method |
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