CN103014691A - TiZr conversion coating/organic coating double-layered prevention method applied to steel fasteners - Google Patents
TiZr conversion coating/organic coating double-layered prevention method applied to steel fasteners Download PDFInfo
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- CN103014691A CN103014691A CN2012105316177A CN201210531617A CN103014691A CN 103014691 A CN103014691 A CN 103014691A CN 2012105316177 A CN2012105316177 A CN 2012105316177A CN 201210531617 A CN201210531617 A CN 201210531617A CN 103014691 A CN103014691 A CN 103014691A
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Abstract
The invention relates to the surface prevention technology of steel fasteners, in particular to a TiZr conversion coating/organic coating double-layered prevention method applied to the steel fasteners, and aims to solve the problems of poor anticorrosion performance and serious pollution of surface protection of a plurality of single-layered or composite electroplated, chemically plated or organic coatings. The method comprises the following steps: deoiling and derusting the fasteners; soaking the steel fasteners in diluted Ti/Zr conversion liquid for 2 to 10 min to generate a layer of Ti/Zr conversion coating; carrying out water washing; and coating a layer of organic coating material, so as to form an organic coating. Through the adoption of the TiZr conversion coating/organic coating double-layered surface prevention technology, the problem that the fasteners are poor in corrosion resistance and seriously polluted under relatively harsh marine environment is solved; and under the premise that the thinness of coating is smaller than and equal to 15 Mum and the basal body bonding strength is high, the neutral salt mist corrosion resistance and the wear resistance of the coating are improved to a large extent.
Description
Technical field
The present invention relates to the surface protection technique of iron and steel material quality fastening piece, be specially a kind of method that is applied to iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection.
Background technology
Ocean environment is one of the harshest environment of occurring in nature corrosive nature, and the most metals material is not sea water resistance, sea atmosphere corrosion.The threaded fastener corrosion of many long-term exposure in ocean environment is very serious, corrosion causes fastening piece to be difficult to dismounting, strength of joint descends, even the problem such as forfeiture occurs, cause very large difficulty for the normal military service of fastening piece and maintaining, and there is dimensional problem in fastening piece, can not apply thicker coating and protect.
By analyzing the factors such as fastening piece material, constructional feature, working conditions, in conjunction with the ocean environment corrodible property, mainly there are the multiple form of corrosion such as crevice corrosion, galvanic corrosion, stress corrosion and fretting corrosion in threaded fastener, and corrosion influence factors is very complicated.Single sufacing is because self intrinsic limitation, can not effectively solve the existing etching problem of fastening piece [1] [Xu Binshi, Zhu Shaohua. the theory of Surface Engineering and technology [M]. Beijing: National Defense Industry Press, 2009:333.].At present, relatively commonly used anticorrosion of threaded fastener is coated with in the engineering, coating has galvanizing, Electroless Ni-P Alloy Coating, vacuum zincizing, zinc-chromium coating etc.Wherein, the galvanizing antiseptic property is general, and coating is thicker, causes easily bolts and nuts assembling difficulty; The vacuum zinc coat possesses certain corrosion resistance nature, and high with substrate combinating strength, wear resistance is good, but salt spray corrosion resistance≤300h; The zinc-chromium coating excellent anti-corrosion performance, salt-fog test time 〉=1000h, coat-thickness≤10 μ m do not affect the assembling of fastening piece, but hardness is low, wear resistance slightly poor [2] [limit flying dragon, Huang Yanbin, Shi Xiaojun, Song Gaowei. threaded fastener composite anti-corrosive technology [J] under the ocean environment. electroplate and cover with paint, lacquer, colour wash, etc., 2010,29 (12): 64-66.].
In sum, a kind of have that corrosion resisting property is good, coating is thin and have to be developed with substrate combinating strength is high, wear resisting property is good compound coating.
Summary of the invention:
For present plating, electroless plating, some process for protecting surface such as compound coating, can't satisfy the iron and steel material quality fastening piece in the problem such as rugged environment application comparatively, the purpose of this invention is to provide a kind of method that is applied to iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection, adopt the process for treating surface of titanium zirconium conversion film/organic coating Double-protection, solved the restriction of iron and steel material quality fastening piece on using, and guaranteeing coating thin (≤15 μ m), in the high situation of substrate combinating strength, improve largely the anti-neutral salt spray corrosive nature and the wear resisting property that has improved coating of coating.
The present invention realizes by the following technical solutions:
A kind of method that is applied to iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection, at first, to fastening piece oil removing, rust cleaning; Then, the iron and steel material quality fastening piece is dipped in 2 ~ 10min in the titanium of dilution/zirconium conversion fluid, generates one deck titanium/zirconium conversion film, the thickness of titanium/zirconium conversion film is that 1 ~ 10 μ m(is preferably 1 ~ 7 μ m); After the washing, apply one deck organic coating, through solidifying to form organic coating, the thickness of organic coating is that 3 ~ 15 μ m(are preferably 3 ~ 8 μ m again).
Among the present invention, the organic coating solidification value is room temperature to 300 ℃, and the time is 10 minutes ~ 48 hours.
The selected degreasing fluid of the present invention is mixed by sodium hydroxide, yellow soda ash, tertiary sodium phosphate, water glass, OP-10 emulsifying agent etc., and the content of each component is as follows:
Sodium hydroxide 3 ~ 15g/L; Yellow soda ash 20 ~ 80g/L; Tertiary sodium phosphate 50 ~ 100g/L; Water glass 5 ~ 15g/L; OP-10 emulsifying agent 0.2 ~ 3g/L; All the other are water.
The selected rust removing solution of the present invention is mixed by hydrochloric acid, nitric acid, and the content of each component is as follows:
Hydrochloric acid 2 ~ 10g/L; Nitric acid 10 ~ 20g/L; All the other are water.
Among the present invention, by weight percentage, composition and the content range of organic coating are as follows:
Resin 10 ~ 60; Filler 3 ~ 25; Auxiliary agent 0.3 ~ 3; All the other are solvent.
The selected organic coating resin of the present invention is one or more in Resins, epoxy, acrylic resin, fluorocarbon resin, the urethane resin.
The selected organic coating filler of the present invention is one or more fillers in aluminium powder, titanium valve, tetrafluoroethylene, polyethylene wax, molybdenumdisulphide, zinc powder, silicon-dioxide, aluminum oxide, zinc oxide, ferrotitanium powder, red iron oxide, the copper powder.
The selected solvent of the present invention is one or more in dimethylbenzene, gylcol ether, propylene glycol, propylene glycol ethers, methyl alcohol, ethanol, ethylene glycol lipid, the propylene glycol lipid.
The selected auxiliary agent of the present invention is auxiliary agent commonly used in the organic coating, as: dispersion agent, flow agent, defoamer etc.
Among the present invention, titanium/zirconium conversion fluid is mixed by fluorine zirconic acid, hydrofluotitanic acid, hydrofluoric acid, nitric acid, Weibull, Amino Trimethylene Phosphonic Acid, ammoniacal liquor, and the content of each component is as follows:
Fluorine zirconic acid 5 ~ 30g/L; Hydrofluotitanic acid 10 ~ 35g/L; Hydrofluoric acid 6 ~ 30g/L; Nitric acid 2 ~ 15g/L; Weibull 1 ~ 15g/L; Amino Trimethylene Phosphonic Acid 1 ~ 12g/L; Ammoniacal liquor 1 ~ 10g/L; All the other are water.
The selected titanium of the present invention/zirconium conversion fluid is through the deionized water dilution, and the titanium of dilution/zirconium conversion fluid concentration is 5 ~ 20wt%.
Titanium of the present invention/zirconium conversion film and organic coating form the Double-protection to iron and steel material quality fastener magnets material surface, and wherein: titanium/zirconium conversion film role is the bonding force that improves between matrix and the coating, and fine and close conversion film has better antiseptic power; The organic coating role is to the bottom sealing, changes the matrix current potential.The two is collaborative, and to be issued to bonding force good, and wear resisting property is good, and coating is thin, the effect that anti-neutral salt spray is good.
Advantage of the present invention and beneficial effect are:
1, the present invention does not need complicated pretreatment process, only need through simple oil removing, rust cleaning, afterwards titanium/zirconium conversion fluid is applied to the surface treatment of iron and steel material quality fastening piece, the iron and steel material quality fastening piece is dipped in titanium/zirconium conversion fluid, just can generate titanium/zirconium conversion film at fastener surface, have the advantage of environmental protection and energy saving.
2, during at≤15 μ m, the anti-neutral salt spray time can reach 500h corrosion not occur, and has better corrosion resistance nature at coat-thickness in the present invention.
3, the present invention is guaranteeing that coating is thin, under the good prerequisite of corrosion resisting property, also has preferably wear resisting property.
Embodiment
Embodiment 1:
At first, prepare sample, the fastening piece of iron and steel material quality is carried out oil removing in alkaline degreasing liquid, clean with a large amount of water afterwards, then in acidic derusting liquid, eliminate rust the massive laundering drying.
Degreasing fluid is mixed by sodium hydroxide, yellow soda ash, tertiary sodium phosphate, water glass, OP-10 emulsifying agent, and the content of each component is as follows:
Sodium hydroxide 10g/L; Yellow soda ash 20g/L; Tertiary sodium phosphate 50g/L; Water glass 5g/L; OP-10 emulsifying agent 0.2g/L; All the other are water.
Rust removing solution is mixed by hydrochloric acid, nitric acid, and the content of each component is as follows:
Hydrochloric acid 5g/L; Nitric acid 15g/L; All the other are water.
Then, get fluorine zirconic acid 15g; Hydrofluotitanic acid 20g; Hydrofluoric acid 25g; Nitric acid 8g; Weibull 4g; Amino Trimethylene Phosphonic Acid (ATMP) 3g; Ammoniacal liquor 2g; The deionized water residue, gross weight 1000g, configuration titanium/zirconium conversion fluid.
Get afterwards 10g titanium/zirconium conversion fluid, dilute with the 100g deionized water, the iron and steel material quality fastening piece of handling well is put into solution soak 10min, form titanium/zirconium conversion film at the iron and steel material quality fastener surface, take out afterwards, large water gaging rinses out residual titanium/zirconium conversion fluid, dries, and the thickness of titanium/zirconium conversion film is 1 ~ 3 μ m.
Have the iron and steel material quality fastening piece of titanium/zirconium conversion film to apply one deck organoaluminum coating on the surface, by weight percentage, present embodiment organoaluminum coating is evenly mixed by following component:
Resins, epoxy 30; Aluminium powder 15; Tetrafluoroethylene 5; Dispersion agent (the German Bi Ke BYK-163 of chemical company) 0.3; Flow agent (the German Bi Ke BYK-306 of chemical company) 0.4; Defoamer (the German Bi Ke BYK-141 of chemical company) 0.2; All the other are butyl glycol ether.
Then, at 240 ℃ of lower 30-60min that solidify, take out, it is complete that coating prepares, and the thickness of coating is 5 ~ 8 μ m, and total coating thickness is at 6 ~ 11 μ m.
Composite coating protection system coating binding force with this method preparation is good, excellent in abrasion resistance, not corrosion of the 600h of anti-the neutral salt spray.
Embodiment 2:
At first, prepare sample, the fastening piece of iron and steel material quality is carried out oil removing in alkaline degreasing liquid, clean with a large amount of water afterwards, then in acidic derusting liquid, eliminate rust the massive laundering drying.
Degreasing fluid is mixed by sodium hydroxide, yellow soda ash, tertiary sodium phosphate, water glass, OP-10 emulsifying agent, and the content of each component is as follows:
Sodium hydroxide 12g/L; Yellow soda ash 60g/L; Tertiary sodium phosphate 70g/L; Water glass 10g/L; OP-10 emulsifying agent 2g/L; All the other are water.
Rust removing solution is mixed by hydrochloric acid, nitric acid, and the content of each component is as follows:
Hydrochloric acid 2g/L; Nitric acid 20g/L; All the other are water.
Then, get fluorine zirconic acid 17g; Hydrofluotitanic acid 23g; Hydrofluoric acid 20g; Nitric acid 10g; Weibull 2g; Amino Trimethylene Phosphonic Acid (ATMP) 5g; Ammoniacal liquor 3g; The deionized water residue, gross weight 1000g, configuration titanium/zirconium conversion fluid.
Get afterwards 15g titanium/zirconium conversion fluid, dilute with the 100g deionized water, the iron and steel material quality fastening piece of handling well is put into solution soak 3min, form titanium/zirconium conversion film at the iron and steel material quality fastener surface, take out afterwards, large water gaging rinses out residual titanium/zirconium conversion fluid, dries, and the thickness of titanium/zirconium conversion film is 2 ~ 5 μ m.
Have the iron and steel material quality fastening piece of titanium/zirconium conversion film to apply one deck organic zinc, aluminum paint on the surface, by weight percentage, present embodiment organic zinc, aluminum paint are evenly mixed by following component:
Acrylic resin 20; Resins, epoxy 20; Zinc powder 7; Aluminium powder 13; Dispersion agent (the German Bi Ke BYK-161 of chemical company) 0.4; Flow agent (the German Bi Ke BYK-333 of chemical company) 0.5; Defoamer (the German Bi Ke BYK-052 of chemical company) 0.3; All the other are dimethylbenzene.
Then, at 300 ℃ of lower 30-40min that solidify, take out, it is complete that coating prepares, and the thickness of coating is 5 ~ 7 μ m, and total coating thickness is at 7 ~ 12 μ m.
Composite coating protection system coating binding force with this method preparation is good, excellent in abrasion resistance, not corrosion of the 700h of anti-the neutral salt spray.
Embodiment 3:
At first, prepare sample, the fastening piece of iron and steel material quality is carried out oil removing in alkaline degreasing liquid, clean with a large amount of water afterwards, then in acidic derusting liquid, eliminate rust the massive laundering drying.
Degreasing fluid is mixed by sodium hydroxide, yellow soda ash, tertiary sodium phosphate, water glass, OP-10 emulsifying agent, and the content of each component is as follows:
Sodium hydroxide 10g/L; Yellow soda ash 50g/L; Tertiary sodium phosphate 60g/L; Water glass 7g/L; OP-10 emulsifying agent 3g/L; All the other are water.
Rust removing solution is mixed by hydrochloric acid, nitric acid, and the content of each component is as follows:
Hydrochloric acid 10g/L; Nitric acid 10g/L; All the other are water.
Then, get fluorine zirconic acid 20g; Hydrofluotitanic acid 15g; Hydrofluoric acid 19g; Nitric acid 6g; Weibull 5g; Amino Trimethylene Phosphonic Acid (ATMP) 7g; Ammoniacal liquor 4g; The deionized water residue, gross weight 1000g, configuration titanium/zirconium conversion fluid.
Get afterwards 20g titanium/zirconium conversion fluid, dilute with the 100g deionized water, the iron and steel material quality fastening piece of handling well is put into solution soak 4min, form titanium/zirconium conversion film at the iron and steel material quality fastener surface, take out afterwards, large water gaging rinses out residual titanium/zirconium conversion fluid, dries, and the thickness of titanium/zirconium conversion film is 3 ~ 5 μ m.
Have the iron and steel material quality fastening piece of titanium/zirconium conversion film to apply one deck organic titanium coating on the surface, by weight percentage, present embodiment organic titanium coating is evenly mixed by following component:
Urethane resin 10; Acrylic resin 30; Titanium valve 8; Polyethylene wax 3; Dispersion agent (the German Bi Ke BYK-110 of chemical company) 0.5; Flow agent (the German Bi Ke BYK-331 of chemical company) 0.3; Defoamer (the German Bi Ke BYK-141 of chemical company) 0.2; All the other are ethylene glycol monomethyl ether.
Then, at 120 ℃ of lower 20-40min that solidify, take out, it is complete that coating prepares, and the thickness of coating is 5 ~ 10 μ m, and total coating thickness is at 8 ~ 15 μ m.
Composite coating protection system coating binding force with this method preparation is good, excellent in abrasion resistance, not corrosion of the 800h of anti-the neutral salt spray.
Embodiment 4:
At first, prepare sample, the fastening piece of iron and steel material quality is carried out oil removing in alkaline degreasing liquid, clean with a large amount of water afterwards, then in acidic derusting liquid, eliminate rust the massive laundering drying.
Degreasing fluid is mixed by sodium hydroxide, yellow soda ash, tertiary sodium phosphate, water glass, OP-10 emulsifying agent, and the content of each component is as follows:
Sodium hydroxide 5g/L; Yellow soda ash 65g/L; Tertiary sodium phosphate 80g/L; Water glass 10g/L; OP-10 emulsifying agent 0.7g/L; All the other are water.
Rust removing solution is mixed by hydrochloric acid, nitric acid, and the content of each component is as follows:
Hydrochloric acid 8g/L; Nitric acid 12g/L; All the other are water.
Then, get fluorine zirconic acid 25g; Hydrofluotitanic acid 12g; Hydrofluoric acid 13g; Nitric acid 4g; Weibull 10g; Amino Trimethylene Phosphonic Acid (ATMP) 6g; Ammoniacal liquor 1g; The deionized water residue, gross weight 1000g, configuration titanium/zirconium conversion fluid.
Get afterwards 11g titanium/zirconium conversion fluid, dilute with the 100g deionized water, the iron and steel material quality fastening piece of handling well is put into solution soak 6min, form titanium/zirconium conversion film at the iron and steel material quality fastener surface, take out afterwards, large water gaging rinses out residual titanium/zirconium conversion fluid, dries, and the thickness of titanium/zirconium conversion film is 1 ~ 3 μ m.
Have the iron and steel material quality fastening piece of titanium/zirconium conversion film to apply one deck organoaluminum, silicon-dioxide coating on the surface, by weight percentage, present embodiment organoaluminum, silicon-dioxide coating are evenly mixed by following component:
Fluorocarbon resin 20; Aluminium powder 19; Silicon-dioxide 3; Dispersion agent (the German Bi Ke BYK-163 of chemical company) 0.6; Flow agent (the German Bi Ke BYK-310 of chemical company) 0.2; Defoamer (the German Bi Ke BYK-052 of chemical company) 0.3; All the other are methyl alcohol.
Then, at 100 ℃ of lower 20-30min that solidify, take out, it is complete that coating prepares, and the thickness of coating is 7 ~ 9 μ m, and total coating thickness is at 8 ~ 12 μ m.
Composite coating protection system coating binding force with this method preparation is good, excellent in abrasion resistance, not corrosion of the 550h of anti-the neutral salt spray.
Embodiment 5:
At first, prepare sample, the fastening piece of iron and steel material quality is carried out oil removing in alkaline degreasing liquid, clean with a large amount of water afterwards, then in acidic derusting liquid, eliminate rust the massive laundering drying.
Degreasing fluid is mixed by sodium hydroxide, yellow soda ash, tertiary sodium phosphate, water glass, OP-10 emulsifying agent, and the content of each component is as follows:
Sodium hydroxide 8g/L; Yellow soda ash 65g/L; Tertiary sodium phosphate 85g/L; Water glass 9g/L; OP-10 emulsifying agent 0.5g/L; All the other are water.
Rust removing solution is mixed by hydrochloric acid, nitric acid, and the content of each component is as follows:
Hydrochloric acid 9g/L; Nitric acid 15g/L; All the other are water.
Then, get fluorine zirconic acid 20g; Hydrofluotitanic acid 27g; Hydrofluoric acid 17g; Nitric acid 4g; Weibull 3g; Amino Trimethylene Phosphonic Acid (ATMP) 1g; Ammoniacal liquor 2g; The deionized water residue, gross weight 1000g, configuration titanium/zirconium conversion fluid.
Get afterwards 13g titanium/zirconium conversion fluid, dilute with the 100g deionized water, the iron and steel material quality fastening piece of handling well is put into solution soak 8min, form titanium/zirconium conversion film at the iron and steel material quality fastener surface, take out afterwards, large water gaging rinses out residual titanium/zirconium conversion fluid, dries, and the thickness of titanium/zirconium conversion film is 2 ~ 5 μ m.
Have the iron and steel material quality fastening piece of titanium/zirconium conversion film to apply one deck organoaluminum, aluminum oxide coating on the surface, by weight percentage, present embodiment organoaluminum, aluminum oxide coating are evenly mixed by following component:
Resins, epoxy 15; Urethane resin 10; Aluminium powder 15; Aluminum oxide powder 5; Dispersion agent (the German Bi Ke BYK-161 of chemical company) 0.4; Flow agent (the German Bi Ke BYK-323 of chemical company) 0.3; Defoamer (the German Bi Ke BYK-141 of chemical company) 0.3; All the other are dimethylbenzene.
Then, at 190 ℃ of lower 10-30min that solidify, take out, it is complete that coating prepares, and the thickness of coating is 6 ~ 8 μ m, and total coating thickness is at 8 ~ 13 μ m.
Composite coating protection system coating binding force with this method preparation is good, excellent in abrasion resistance, not corrosion of the 650h of anti-the neutral salt spray.
Embodiment 6:
At first, prepare sample, the fastening piece of iron and steel material quality is carried out oil removing in alkaline degreasing liquid, clean with a large amount of water afterwards, then in acidic derusting liquid, eliminate rust the massive laundering drying.
Degreasing fluid is mixed by sodium hydroxide, yellow soda ash, tertiary sodium phosphate, water glass, OP-10 emulsifying agent, and the content of each component is as follows:
Sodium hydroxide 7g/L; Yellow soda ash 30g/L; Tertiary sodium phosphate 55g/L; Water glass 13g/L; OP-10 emulsifying agent 0.9g/L; All the other are water.
Rust removing solution is mixed by hydrochloric acid, nitric acid, and the content of each component is as follows:
Hydrochloric acid 4g/L; Nitric acid 18g/L; All the other are water.
Then, get fluorine zirconic acid 22g; Hydrofluotitanic acid 19g; Hydrofluoric acid 24g; Nitric acid 5g; Weibull 5g; Amino Trimethylene Phosphonic Acid (ATMP) 2g; Ammoniacal liquor 3g; The deionized water residue, gross weight 1000g, configuration titanium/zirconium conversion fluid.
Get afterwards 20g titanium/zirconium conversion fluid, dilute with the 100g deionized water, the iron and steel material quality fastening piece of handling well is put into solution soak 2min, form titanium/zirconium conversion film at the iron and steel material quality fastener surface, take out afterwards, large water gaging rinses out residual titanium/zirconium conversion fluid, dries, and the thickness of titanium/zirconium conversion film is 3 ~ 5 μ m.
Have the iron and steel material quality fastening piece of titanium/zirconium conversion film to apply one deck organoaluminum, titanium coating on the surface, by weight percentage, present embodiment organoaluminum, titanium coating are evenly mixed by following component:
Urethane resin 25; Aluminium powder 10; Titanium valve 10; Dispersion agent (the German Bi Ke BYK-110 of chemical company) 0.5; Flow agent (the German Bi Ke BYK-310 of chemical company) 0.5; Defoamer (the German Bi Ke BYK-052 of chemical company) 0.5; All the other are propandiol butyl ether.
Then, at 180 ℃ of lower 30-40min that solidify, take out, it is complete that coating prepares, and the thickness of coating is 4 ~ 6 μ m, and total coating thickness is at 7 ~ 11 μ m.
Composite coating protection system coating binding force with this method preparation is good, excellent in abrasion resistance, not corrosion of the 500h of anti-the neutral salt spray.
Embodiment result shows, the present invention is directed to the problems such as the antiseptic property of some individual layers such as present plating, electroless plating, organic coating and some compound coating surfacecti proteons is poor, seriously polluted, at first to fastening piece oil removing, rust cleaning, then the iron and steel material quality fastening piece is dipped in 2 ~ 10min in the titanium of dilution/zirconium conversion fluid, generate one deck titanium/zirconium conversion film, after the washing, apply again one deck organic coating, be formed with organic coating.Adopt titanium zirconium conversion film/organic coating Double-protection process for treating surface, the problems such as fastening piece corrosion resisting property in the comparatively harsh ocean environment of environment is poor, seriously polluted have been solved, and guaranteeing coating thin (≤15 μ m), in the high situation of substrate combinating strength, improve largely the anti-neutral salt spray corrosive nature and the wear resisting property that has improved coating of coating.
Claims (10)
1. one kind is used for iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection method, it is characterized in that, at first, to fastening piece oil removing, rust cleaning; Then, the iron and steel material quality fastening piece is dipped in 2 ~ 10min in the titanium of dilution/zirconium conversion fluid, generates one deck titanium/zirconium conversion film, after the washing, apply again one deck organic coating, be formed with organic coating.
According to claimed in claim 1 for iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection method, it is characterized in that, degreasing fluid is mixed by sodium hydroxide, yellow soda ash, tertiary sodium phosphate, water glass, OP-10 emulsifying agent, and the content of each component is as follows:
Sodium hydroxide 3 ~ 15g/L; Yellow soda ash 20 ~ 80g/L; Tertiary sodium phosphate 50 ~ 100g/L; Water glass 5 ~ 15g/L; OP-10 emulsifying agent 0.2 ~ 3g/L; All the other are water.
3. it is characterized in that for iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection method rust removing solution is mixed by hydrochloric acid, nitric acid according to claimed in claim 1, the content of each component is as follows:
Hydrochloric acid 2 ~ 10g/L; Nitric acid 10 ~ 20g/L; All the other are water.
4. it is characterized in that for iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection method that according to claimed in claim 1 by weight percentage, composition and the content range of organic coating are as follows:
Resin 10 ~ 60; Filler 3 ~ 25; Auxiliary agent 0.3 ~ 3; All the other are solvent.
According to claimed in claim 4 for iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection method, it is characterized in that the organic coating resin is one or more in Resins, epoxy, acrylic resin, fluorocarbon resin, the urethane resin.
According to claimed in claim 4 for iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection method, it is characterized in that solvent is one or more in dimethylbenzene, gylcol ether, propylene glycol, propylene glycol ethers, methyl alcohol, ethanol, ethylene glycol lipid, the propylene glycol lipid.
According to claimed in claim 4 for iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection method, it is characterized in that the organic coating filler is one or more fillers in aluminium powder, titanium valve, tetrafluoroethylene, polyethylene wax, molybdenumdisulphide, zinc powder, silicon-dioxide, aluminum oxide, zinc oxide, ferrotitanium powder, red iron oxide, the copper powder.
According to claimed in claim 1 for iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection method, it is characterized in that, titanium/zirconium conversion fluid is mixed by fluorine zirconic acid, hydrofluotitanic acid, hydrofluoric acid, nitric acid, Weibull, Amino Trimethylene Phosphonic Acid, ammoniacal liquor, and the content of each component is as follows:
Fluorine zirconic acid 5 ~ 30g/L; Hydrofluotitanic acid 10 ~ 35g/L; Hydrofluoric acid 6 ~ 30g/L; Nitric acid 2 ~ 15g/L; Weibull 1 ~ 15g/L; Amino Trimethylene Phosphonic Acid 1 ~ 12g/L; Ammoniacal liquor 1 ~ 10g/L; All the other are water.
9. it is characterized in that for iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection method according to claimed in claim 8 that titanium/zirconium conversion fluid is through the deionized water dilution, the titanium of dilution/zirconium conversion fluid concentration is 5 ~ 20wt%.
10. it is characterized in that for iron and steel material quality fastening piece titanium zirconium conversion film/organic coating Double-protection method that according to claimed in claim 1 the thickness of titanium/zirconium conversion film is 1 ~ 10 μ m, the thickness of organic coating is 3 ~ 15 μ m.
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| CN114774902B (en) * | 2022-03-21 | 2024-03-22 | 沈阳先进涂层材料产业技术研究院有限公司 | Long-acting protection method for titanium-zirconium conversion coating and organic aluminum-rich coating on surface of ADC12 die-casting aluminum alloy |
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