CN101575692B - Ammonium-salt-free plating assistant agent used for hot dip galvanizing and technical methods for preparation and use thereof - Google Patents
Ammonium-salt-free plating assistant agent used for hot dip galvanizing and technical methods for preparation and use thereof Download PDFInfo
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- CN101575692B CN101575692B CN200910094499.6A CN200910094499A CN101575692B CN 101575692 B CN101575692 B CN 101575692B CN 200910094499 A CN200910094499 A CN 200910094499A CN 101575692 B CN101575692 B CN 101575692B
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- 238000007747 plating Methods 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005246 galvanizing Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims abstract description 28
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011701 zinc Substances 0.000 claims abstract description 22
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 22
- 239000004094 surface-active agent Substances 0.000 claims abstract description 21
- -1 phosphate ester Chemical class 0.000 claims abstract description 15
- 235000005074 zinc chloride Nutrition 0.000 claims abstract description 14
- 239000011592 zinc chloride Substances 0.000 claims abstract description 14
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 10
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000007864 aqueous solution Substances 0.000 claims abstract description 8
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 7
- 239000000194 fatty acid Substances 0.000 claims abstract description 7
- 229930195729 fatty acid Natural products 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 24
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 12
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 12
- 239000013543 active substance Substances 0.000 claims description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 125000000129 anionic group Chemical group 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims description 3
- 238000011112 process operation Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 150000004665 fatty acids Chemical class 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 20
- 239000003500 flue dust Substances 0.000 description 12
- 235000019270 ammonium chloride Nutrition 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 8
- 238000007654 immersion Methods 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000005554 pickling Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 3
- 239000002932 luster Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 235000002949 phytic acid Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- XEPNJJFNSJKTSO-UHFFFAOYSA-N azanium;zinc;chloride Chemical compound [NH4+].[Cl-].[Zn] XEPNJJFNSJKTSO-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- 239000000467 phytic acid Substances 0.000 description 2
- 229940068041 phytic acid Drugs 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 235000013024 sodium fluoride Nutrition 0.000 description 2
- 239000011775 sodium fluoride Substances 0.000 description 2
- QGTQTQBVAMFOGO-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid;potassium Chemical compound [K].OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F QGTQTQBVAMFOGO-UHFFFAOYSA-N 0.000 description 1
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- 208000003643 Callosities Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 235000011167 hydrochloric acid Nutrition 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 description 1
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- KMVJYZPWGWEBIK-UHFFFAOYSA-L zinc azane dichloride Chemical compound N.[Cl-].[Cl-].[Zn+2] KMVJYZPWGWEBIK-UHFFFAOYSA-L 0.000 description 1
Abstract
The invention provides an ammonium-salt-free plating assistant agent used for hot dip galvanizing and technical methods for preparation and use thereof, belonging to the technical field of the surfaceplating technique of steel and iron materials. The technical proposal is as follows: the aqueous solution of the plating assistant agent has the following components of zinc chloride, sodium chloride , a nonionic surface active agent (cocinic acid alkanolamide, fatty acid alkanolamide or alkanolamide phosphate ester) and a perfluoro-carbon type surface active agent with the respective proportion in sequence of 80 to 350g/L, 30 to 100g/L, 2 to 4g/L and 0.1 to 2g/L, and the balance of water. When the plating assistant agent is used for hot dip plating: the steel and iron product after oil and dust removing is dipped into the ammonium-salt-free plating assistant agent for plating assistant treatment firstly, the temperature is controlled to be in the range of 40 to 80 DEG C, then drying or baking is carried out at the temperature of 40 to 140 DEG C so as to lead the surface of the product to be adhered with a layer of even plating assistant film, and then the obtained product is dipped into molten zinc for hot dip plating. The invention has the advantages that the plating assistant agent is not added with ammonium salt, thus being capable of greatly reducing the generation of dusts when in hot dip plating, reducing pollution to environment and improving working environment.
Description
Technical field
The present invention proposes the special plating assistant agent of a kind of hot dip process and using method, belongs to the coating surface Technology field of ferrous materials.
Background technology
Help plating exactly the steel piece after pickling to be immersed in the zinc ammonium chloride quickening liquid of certain ingredients again, after proposition, form the process of the zinc chloride ammonium salt film that one deck is thin on product surface.Help plating operation to play clean effect to steel piece surface, after removal pickling, remain in molysite or the oxide compound on product surface, make steel piece in the time entering zinc bath, there is larger surfactivity.At steel piece surface deposition last layer salt film, can prevent that steel piece is from helping plating pond to entering corrosion inherent air of this for some time of zinc pot.In the time that the steel piece that helps plating to process immerses zinc liquid, ammonium chloride in the quickening liquid salt film on steel piece surface can resolve into ammonia and hydrogen chloride gas under comparatively high temps, now hydrogenchloride has accounted for leading to the erosion of steel matrix, make steel matrix surface can not form oxide compound, keep the active state of steel matrix.Therefore at the ammonium chloride that all contains certain content in plating assistant agent for traditional galvanizing.
Zinc chloride+ammonium chloride quickening liquid is extensively adopted by galvanizing enterprise, but in use, helps the rear steel piece of plating surface to form zinc chloride ammonia salt film, because the ammonia chloride decomposition temperature in salt film is low, far below 450 DEG C of conventional galvanizing temperature.Therefore ammonia chloride decomposes can form ammonia and hydrogen chloride gas when immersion plating, these two kinds of gases can be combined into again micron order or nano level crystal grain above zinc bath, cause zinc to bathe top and produce a large amount of flue dust, affect operating environment and the periphery ecotope of zincincation.
The volume of smoke producing while plating rear immersion plating for galvanizing process because helping, most domestic enterprise does not adopt adequate measure to process.And in American-European countries, generally having adopted the mode of flue dust collecting filtration treatment, produced flue dust after collecting, is processed air-bleed system in strainer.This flue dust collecting treatment system equipment is huge, operation energy consumption is higher, 75%～95% flue dust can be extracted and removes, the better low zinc-plated operating environment of having improved.
For the huge energy consumption of removing huge smoke filtration system from and causing because moving this system, exploitation has huge application prospect undoubtedly without oronain plating assistant agent, but the achievement of research is also few, develops at present zinc chloride, Repone K (sodium-chlor) and be, copper/tin system, PHYTIC ACID ZINC SALT system etc.As, in Chinese patent (CN 101122000A), invent a kind of phytate plating resisting agent for heat zinc coating, plating assistant agent is made up of PHYTIC ACID ZINC SALT, borax, Sodium Fluoride, citric acid, oxalic acid, hydrochloric acid callosity, does not contain ammonium chloride in plating assistant agent, is conducive to the improvement of Working environment; And for example, in Chinese patent (CN101328568A), invent multifunctional plating assistant agent used for hot dipping additive, the additive being made up of quaternary ammonium root cats product and polyoxyethylene groups nonionogenic tenside is added to and helps plating effect while improving galvanizing, galvanizing-aluminium in the plating assistant agent being made up of Sodium Fluoride, aluminum fluoride, zinc chloride, ammonium chloride, potassium chlorate fluozirconate, Potassium monofluoride, sodium-chlor.These plating assistant agents do not remove ammonium chloride completely, when just adding fluorochemical or rare-earth salts and improving galvanizing-aluminium, help plating effect; Or replace ammonium chloride completely with Repone K or sodium-chlor, and although reduced flue dust, help plating effect unsatisfactory, easily produce plating leakage.For this reason, studying a kind of novel plating assistant agent without ammonium chloride, help plating to reduce flue dust effect in the situation that meeting, improve Working environment, is a galvanizing technical field difficult problem in the urgent need to address.
Summary of the invention
The object of the present invention is to provide a kind of ammonium-salt-free plating assistant agent used for hot dip galvanizing and preparation thereof and operation method, in its plating assistant agent component, add the generation of flue dust can significantly reduce hot dip process time without ammonium salt, reduce the pollution to environment, improve Working environment.
The present invention's plating assistant agent technical scheme without ammonium salt used for hot dip galvanizing is: the plating assistant agent aqueous solution is made up of zinc chloride, sodium-chlor, nonionic surface active agent and perfluorocarbon type tensio-active agent; Proportioning consists of: zinc chloride 80～350g/L, and sodium-chlor 30～100g/L, nonionic surface active agent 2～4g/L, perfluorocarbon tensio-active agent 0.1～2g/L, all the other are water.
Perfluorocarbon type tensio-active agent in the described plating assistant agent aqueous solution is cationic, anionic and the non-ionic type that does not contain ammonium radical ion; Nonionic surface active agent in the plating assistant agent aqueous solution is cocinic acid alkylolamide or fatty acid alkyl amide or alkylolamide phosphoric acid fat.
Employing ammonium-salt-free plating assistant agent carries out hot dip process operation and is: first the steel product after oil removing, rust cleaning is immersed in the plating assistant agent without ammonium salt and helps plating to process, temperature is controlled within the scope of 40 DEG C～80 DEG C, then dry at 40 DEG C～140 DEG C temperature or oven dry, make the uniform plating assistant agent film of its surface attachment one deck, then immerse and in galvanizing zinc, carry out hot dip process.
While helping plating, temperature the best of quickening liquid is 60 DEG C-70 DEG C.
Helping the bake out temperature the best between the rear iron and steel of plating is 70 DEG C-110 DEG C.
The invention has the advantages that in plating assistant agent component the generation that adds flue dust can significantly reduce hot dip process time without ammonium salt, reduce the pollution to environment, improve Working environment.
Embodiment:
Below in conjunction with example, the invention will be further described.
The plating assistant agent aqueous solution of the present invention is made up of zinc chloride, sodium-chlor, nonionic surface active agent (cocinic acid alkylolamide or fatty acid alkyl amide or alkylolamide phosphoric acid fat) and perfluorocarbon type tensio-active agent; Proportioning consists of: zinc chloride 80～350g/L, sodium-chlor 30～100g/L, nonionic surface active agent (cocinic acid alkylolamide or fatty acid alkyl amide or alkylolamide phosphoric acid fat) 2～4g/L, perfluorocarbon tensio-active agent 0.1～2g/L, all the other are water.While using the present invention to carry out hot dip process: first the steel product after oil removing, rust cleaning is immersed in the plating assistant agent without ammonium salt and helps plating to process, temperature is controlled within the scope of 40 DEG C～80 DEG C, then dry at 40 DEG C～140 DEG C temperature or oven dry, make the uniform plating assistant agent film of its surface attachment one deck, then immerse and in galvanizing zinc, carry out hot dip process.The object of the invention is to overcome the deficiencies in the prior art, ammonium chloride in traditional plating assistant agent is removed completely under the prerequisite that ensures to help plating effect by adding fluorocarbon, nonionic surface active agent (cocinic acid alkylolamide or fatty acid alkyl amide or alkylolamide phosphoric acid fat).Its advantage is in plating assistant agent component to add zinc can significantly reduce galvanizing time to bathe the flue dust that surface produces without ammonium salt, and helps plating process operation simple.
The preparation process that is characterized as fluorocarbon surfactant of the fluorocarbon surfactant in above-mentioned ammonium-salt-free plating assistant agent in complexed surfactant be by all or part of the hydrogen atom in the hydrocarbon chain of hc-surfactant with fluorine atom replace, fluorocarbon chain has replaced hydrocarbon chain.Fluorocarbon surfactant can be cationic, anionic or non-ionic type, but can not contain ammonium radical ion in tensio-active agent.
The depositing process that helps of above-mentioned ammonium-salt-free plating assistant agent is: first the steel product after oil removing, rust cleaning is immersed in the plating assistant agent without ammonium salt and helps plating to process, temperature is controlled within the scope of 40 DEG C～80 DEG C, then dry at 40 DEG C～140 DEG C temperature or oven dry, make the uniform plating assistant agent film of its surface attachment one deck, then immerse in fused zinc or aluminium zinc liquid and carry out hot dip process.The temperature control of quickening liquid is 40 DEG C～80 DEG C, if temperature lower than 40 DEG C, complexed surfactant dissolves not thorough, impact helps plating effect; If temperature is higher than 80 DEG C, complexed surfactant dissolves thoroughly, and impact helps plating effect, but plating assistant agent volatilization is too fast, helps in plating pond quickening liquid composition wayward.It is 40 DEG C～140 DEG C that steel piece helps the bake out temperature after plating, and bake out temperature should not exceed 140 DEG C, otherwise causes plating leakage because the plating assistant agent salt membrane portions on steel piece surface loses efficacy; When bake out temperature is during lower than 40 DEG C, need long time drying, thoroughly and easily do not cause that in plating assistant agent salt film, the zinc chloride moisture absorption causes quick-fried zinc otherwise dry.
Embodiment 1: get fluorocarbon surfactant as perfluoro octyl sulfonic acid potassium 1Kg, cocinic acid alkylolamide 20Kg, zinc chloride 800Kg, sodium-chlor 300Kg, 10000L tap water is made into plating assistant agent solution, stirs, and quickening liquid is heated to 40 DEG C.75 × 75 × 6 angle steel 480Kg of long 400mm through degreasing, acid pickling and rust removing, rinsing are immersed in quickening liquid, after angle steel proposes from quickening liquid, dry bed 40 DEG C of temperature and dry 22min, then angle steel immerses in zinc bath zinc-plated, when immersion, zinc liquid surface only has a small amount of flue dust to produce, after immersion plating 1min, angle steel proposes after water-bath is cooling from zinc liquid, find that angle steel surface is without plating leakage phenomenon, coating color and luster is even.
Embodiment 2: get fluorocarbon surfactant as N-propyl group perfluorooctyl sulfonyl Tetrumethylammonium Iodide compound 20Kg, fatty acid alkyl amide 40Kg, zinc chloride 3500Kg; sodium-chlor 1000Kg; 10000L tap water is made into plating assistant agent solution, stirs, and quickening liquid is heated to 70 DEG C.75 × 75 × 8 angle steel 600Kg of long 400mm through degreasing, acid pickling and rust removing, rinsing are immersed in quickening liquid, after angle steel proposes from quickening liquid, dry bed 140 DEG C of temperature and dry 5min, then angle steel immerses in zinc bath zinc-plated, when immersion, zinc liquid surface only has a small amount of flue dust to produce, after immersion plating 1min, angle steel proposes after water-bath is cooling from zinc liquid, find that angle steel surface is without plating leakage phenomenon, coating color and luster is even.
Embodiment 3: get fluorocarbon surfactant as N-methyl perfluorooctyl sulfonyl monoethanolamine 12Kg, alkylolamide phosphoric acid fat 60Kg, zinc chloride 2400Kg; sodium-chlor 1600Kg; 20000L tap water is made into plating assistant agent solution, stirs, and quickening liquid is heated to 80 DEG C.50 × 50 × 4 angle steel 880Kg of long 360mm through degreasing, acid pickling and rust removing, rinsing are immersed in quickening liquid, after angle steel proposes from quickening liquid, dry bed 110 DEG C of temperature and dry 5min, then angle steel immerses in zinc bath zinc-plated, the fume amount that when immersion, zinc liquid surface produces is very few, after immersion plating 1min, angle steel proposes after water-bath is cooling from zinc liquid, find that angle steel surface is without plating leakage phenomenon, coating color and luster is even.
Claims (4)
1. the plating assistant agent without ammonium salt used for hot dip galvanizing is prepared and operation method, it is characterized in that adopting ammonium-salt-free plating assistant agent to carry out hot dip process operation is: first the steel product after oil removing, rust cleaning is immersed in ammonium-salt-free plating assistant agent and helps plating to process, temperature is controlled within the scope of 40 DEG C～80 DEG C, then dry at 40 DEG C～140 DEG C temperature or oven dry, make the uniform plating assistant agent film of its surface attachment one deck, then immerse and in galvanizing zinc, carry out hot dip process;
The described ammonium-salt-free plating assistant agent aqueous solution is made up of zinc chloride, sodium-chlor, nonionic surface active agent and perfluorocarbon type tensio-active agent; Proportioning consists of: zinc chloride 80～350g/L, and sodium-chlor 30～100g/L, nonionic surface active agent 2～4g/L, perfluorocarbon tensio-active agent 0.1～2g/L, all the other are water.
2. the preparation of the plating assistant agent without ammonium salt used for hot dip galvanizing according to claim 1 and operation method, is characterized in that: in the time that ammonium-salt-free plating assistant agent helps plating, temperature the best of quickening liquid is 60 DEG C-70 DEG C.
3. the preparation of the plating assistant agent without ammonium salt used for hot dip galvanizing according to claim 1 and operation method, is characterized in that: help after plating at ammonium-salt-free plating assistant agent, bake out temperature the best is 70 DEG C-110 DEG C.
4. the plating assistant agent without ammonium salt used for hot dip galvanizing preparation according to claim 1 and operation method, is characterized in that: the perfluorocarbon type tensio-active agent in the described plating assistant agent aqueous solution is cationic, anionic and the non-ionic type that does not contain ammonium radical ion; Nonionic surface active agent in the plating assistant agent aqueous solution is cocinic acid alkylolamide or fatty acid alkyl amide or alkylolamide phosphoric acid fat.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910094499.6A CN101575692B (en) | 2009-05-22 | 2009-05-22 | Ammonium-salt-free plating assistant agent used for hot dip galvanizing and technical methods for preparation and use thereof |
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| CN200910094499.6A CN101575692B (en) | 2009-05-22 | 2009-05-22 | Ammonium-salt-free plating assistant agent used for hot dip galvanizing and technical methods for preparation and use thereof |
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| CN104195487A (en) * | 2014-09-15 | 2014-12-10 | 钱宏彬 | On-batch steel hot galvanizing environment-friendly type multi-effect galvanization helping liquid and use method thereof |
| CN107236919A (en) * | 2017-06-28 | 2017-10-10 | 华杰 | A kind of hot dipping plating assistant agent and its application |
| CN108486514A (en) * | 2018-06-14 | 2018-09-04 | 安徽宏源铁塔有限公司 | A kind of fluxing agent in iron tower construction member zincincation and configuration method |
| CN109013134B (en) * | 2018-09-04 | 2020-08-28 | 诸暨市澳速机械设计工作室 | Coating equipment for surface of angle steel |
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