CN1111569C - Inorganic phosphate paint - Google Patents
Inorganic phosphate paint Download PDFInfo
- Publication number
- CN1111569C CN1111569C CN98111948A CN98111948A CN1111569C CN 1111569 C CN1111569 C CN 1111569C CN 98111948 A CN98111948 A CN 98111948A CN 98111948 A CN98111948 A CN 98111948A CN 1111569 C CN1111569 C CN 1111569C
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- CN
- China
- Prior art keywords
- coating
- powder
- zinc
- aluminium
- phosphate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910052816 inorganic phosphate Inorganic materials 0.000 title claims abstract description 6
- 239000003973 paint Substances 0.000 title abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 216
- 239000011248 coating agent Substances 0.000 claims abstract description 197
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 61
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000000843 powder Substances 0.000 claims abstract description 46
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000004411 aluminium Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002245 particle Substances 0.000 claims abstract description 13
- 229910001297 Zn alloy Inorganic materials 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 44
- 239000011701 zinc Substances 0.000 claims description 33
- 229910052725 zinc Inorganic materials 0.000 claims description 32
- 229910052742 iron Inorganic materials 0.000 claims description 22
- 239000011230 binding agent Substances 0.000 claims description 19
- 150000003839 salts Chemical class 0.000 claims description 18
- 229910019142 PO4 Inorganic materials 0.000 claims description 16
- 239000010452 phosphate Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 13
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 13
- 239000004571 lime Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 239000000395 magnesium oxide Substances 0.000 claims description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 10
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910021645 metal ion Inorganic materials 0.000 claims description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 238000007711 solidification Methods 0.000 claims description 8
- 230000008023 solidification Effects 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 239000011777 magnesium Substances 0.000 claims description 7
- 150000002739 metals Chemical class 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 6
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910052582 BN Inorganic materials 0.000 claims description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000003637 basic solution Substances 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- NVKTUNLPFJHLCG-UHFFFAOYSA-N strontium chromate Chemical compound [Sr+2].[O-][Cr]([O-])(=O)=O NVKTUNLPFJHLCG-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 208000034189 Sclerosis Diseases 0.000 claims description 3
- 230000001476 alcoholic effect Effects 0.000 claims description 3
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 claims description 3
- YEXPOXQUZXUXJW-UHFFFAOYSA-N lead(II) oxide Inorganic materials [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 3
- -1 polyoxyethylene Polymers 0.000 claims description 3
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 claims description 3
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 2
- 229910001312 Amalgam (dentistry) Inorganic materials 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000000448 dental amalgam Substances 0.000 claims description 2
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims description 2
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 229910021332 silicide Inorganic materials 0.000 claims description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052712 strontium Inorganic materials 0.000 claims description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 2
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 1
- 229910000861 Mg alloy Inorganic materials 0.000 claims 1
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 claims 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims 1
- 239000000347 magnesium hydroxide Substances 0.000 claims 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 claims 1
- 229910000400 magnesium phosphate tribasic Inorganic materials 0.000 claims 1
- 239000011572 manganese Substances 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 claims 1
- 229910021511 zinc hydroxide Inorganic materials 0.000 claims 1
- 229940007718 zinc hydroxide Drugs 0.000 claims 1
- 239000011787 zinc oxide Substances 0.000 claims 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims 1
- 229910000165 zinc phosphate Inorganic materials 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 29
- 239000010959 steel Substances 0.000 abstract description 29
- 238000005260 corrosion Methods 0.000 abstract description 14
- 230000007797 corrosion Effects 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 abstract 1
- 238000004210 cathodic protection Methods 0.000 abstract 1
- 229910003480 inorganic solid Inorganic materials 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 16
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 15
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 14
- 238000001723 curing Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 229910000635 Spelter Inorganic materials 0.000 description 8
- 239000002585 base Substances 0.000 description 8
- 150000003016 phosphoric acids Chemical class 0.000 description 8
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 7
- 235000011007 phosphoric acid Nutrition 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000005246 galvanizing Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 4
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 description 4
- 235000012976 tarts Nutrition 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910017119 AlPO Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000023555 blood coagulation Effects 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-M dihydrogenphosphate Chemical compound OP(O)([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-M 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000001890 transfection Methods 0.000 description 2
- 241000370738 Chlorion Species 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000005340 bisphosphate group Chemical group 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- RLJMLMKIBZAXJO-UHFFFAOYSA-N lead nitrate Chemical compound [O-][N+](=O)O[Pb]O[N+]([O-])=O RLJMLMKIBZAXJO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000013035 low temperature curing Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000001457 metallic cations Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical class [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002426 superphosphate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-UHFFFAOYSA-N 0.000 description 1
- 229940048102 triphosphoric acid Drugs 0.000 description 1
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The present invention relates to paint composed of an adhesive agent of which the inorganic phosphate is dispersed in water and inorganic solid particles, which can be automatically dried or solidified by baking at a room temperature. A coating composed of an adhesive agent and zinc powder or aluminium powder (or aluminum-zinc alloy powder)is a sacrificial steel anode-coating, and the coating has high heat resistance, high electric conductivity and good cathodic protection function. The paint can be directly coated on the surfaces of steel materials which are not blasted, and a slight corrosion film or an oxidation film on the surfaces of the steel materials is converted into the components of the coating. The coating technology is convenient, and the paint is used for protecting large steel members.
Description
The invention belongs to a kind of inorganic paint, specifically, it belongs to a kind of and is scattered in the coating that water is formed by inoganic solids particulate and phosphoric acid salt, through being heating and curing or at room temperature dry voluntarily and sclerosis, forms coating.It has premium propertiess such as protection against corrosion, heat-resisting, conduction, and extensive applicability is arranged.
In modern industrial society, metallic corrosion is serious problems, the large-scale steel and iron member that in abominable corrosive environment, uses particularly, and the method for lacquering that adopts can not satisfy requirement of shelter usually, must take more effective measures.
Cathode protection technology be successfully used to already under water or underground wet environment in the protection against corrosion field of the large-scale steel and iron member that uses; but be in position waterborne or the discontinuous position of corrosive medium for large-scale steel part; common galvanic protection is not all prove effective, and it is effective means that this occasion adopts the sacrificing positive pole coating protection that also plays the galvanic protection effect.Galvanizing (aluminium or aluminium zinc) is an example of sacrificing positive pole coating.Though it prevents that the effect of steel corrosion is fine, but it is bigger to implement difficulty for large-scale steel and iron member, it must carry out well-designed to whole member, because can only in advance each component be carried out galvanizing (aluminium or aluminium zinc) respectively, and then assembles.Behind the member process galvanizing (aluminium or aluminium zinc).Can not weld again or other processing, otherwise coating suffers that breakage is difficult to repair.Hot spray painted zinc (or aluminium) is another example of sacrificing positive pole coating.Though it can carry out integral spray to the member that assembles, it is bigger to implement difficulty for large-scale steel and iron member.Therefore people place hope on can be at room temperature solidified inorganic zinc-rich coating voluntarily.English Patent 958787 and United States Patent (USP) 4219358 are two examples of this coating.Inorganic zinc-rich coating has the negative potential of zinc; therefore it also is a kind of sacrificing positive pole coating; but the actual effect that is used for large-scale steel and iron member is unsatisfactory; it is as follows to trace it to its cause: first reason is that the resistance of coating is too big; thereby the galvanic protection function can not give full play to, and particularly all the more so when the resistance of corrosive medium is also big [body resistivity of inorganic zinc-rich coating is 10
4～10
7Ω m, and the body resistivity of galvanizing (aluminium or aluminium zinc) is less than 0.1 Ω m]; The bonding that second reason is inorganic zinc-rich coating and base material is a kind of mechanical snap, there are not Chemical bond or metallurgical binding, therefore require steel and iron member is carried out strict blast alligatoring and surface-conditioning before applying, comprise strict oil removing and rust cleaning, in fact be difficult to accomplish these for large-scale steel and iron member, for example the blast of the sunk areas such as groove gap of large-scale steel and iron member is difficult for reaching requirement, rusty stain is difficult to thoroughly remove, existing inorganic zinc-rich coating is difficult for cementing in these zones, can not suppress the development of these regional corrosions effectively, finally cause coating also bubbling come off; What the 3rd reason was that inorganic zinc-rich coating adopts is silicate bond, and its toughness is relatively poor, and coating is more crisp, has been coated with easy to crack peeling off thick, therefore can only be coated with thinlyyer, thereby also just more shorten the protection life-span.Thoroughly rust cleaning is than this situation of difficulty at large-scale steel and iron member, and a kind of coating that is called primer for rusty surface arises at the historic moment, and Chinese patent CN87102047 and English Patent GB2160877 are two examples of this coating.The iron rust react with of this coating energy and steel surface (dissolving rust) therefore can be with the rust coating, and the operation of removing the blast rust cleaning from simplifies being coated with the front surface cleaning operation greatly.But this coating does not possess the galvanic protection function, and anti-corrosion capability is not high, therefore can not adapt to the needs of the long-term protection of large-scale steel and iron member.
United States Patent (USP) 3248251 discloses a kind of inorganic aluminum coating (being designated hereinafter simply as inorganic aluminum coating) by Alan (Allen) invention, it is+2 and the coating formed of phosphoric acid salt, chromic salt and the aluminium powder of+3 valency metals, be fabulous inorganic (sacrifice) anode coating of a kind of performance, it is widely used in the protection of the various iron and steel parts of aircraft engine.It has fabulous electroconductibility, and the body resistivity of coating is less than 1 Ω m, is ten thousand of the said inorganic zinc-rich coating body resistivity in front/to 1/10000000th.Its adhesive power, toughness, thermotolerance, oxidation-resistance, oil-proofness and anti-corrosion capability all beat by miles above-mentioned inorganic zinc-rich coating and other erosion shields.Though its same inorganic coating that belongs to zinc-rich coating, the former binding agent are phosphoric acid salt and the latter's binding agent is a silicate, this is the former the performance major cause more superior than the latter.As everyone knows; the bonderizing of iron and steel is a kind of process for treating surface of steel part; steel surface and phosphoric acid salt generation chemical reaction and the phosphoric acid molysite protective membrane that forms; it is except shielding; main function is to improve the bonding force of base material and paint; phosphoric acid salt in the above-mentioned inorganic aluminum coating also can play chemically combined effect with iron and steel, the then this effect of unable to get up of silicate zinc-rich coating, so the cohesive force of phosphoric acid salt inorganic coating surpasses the silicate inorganic coating.
The main drawback of above-mentioned inorganic aluminum coating is its dry solidification voluntarily at room temperature unlike inorganic zinc-rich coating; it must be heated to 500～1000 °F and just solidify; coating after the curing also need be carried out aftertreatment (spray glass from pearl polishing or reheat to 1000) and just conducted electricity, and just possesses the galvanic protection function.Secondly, because the wettability of coating is very poor, it also must require the very harsh pre-treatment that is coated with as inorganic zinc-rich coating, must carry out very strict cleaning and blast to base material before for example applying, otherwise coating adheres to incessantly.The harshness of the pre-treatment that is coated with carry out such heat and to(for) large-scale steel and iron member is very difficult.Contain a large amount of sexavalent chromes in the above-mentioned in addition inorganic aluminum paint, cause environmental pollution and harm operator health easily.Owing to have these shortcomings, thereby limited its use range.
Main purpose of the present invention will be created a kind of like this coating component and paint-on technique exactly; it has gives birth to performances such as energy, galvanic protection function, corrosion resistance and heat-resisting, oil resistant with the approaching conduction of above-mentioned inorganic aluminum coating; can at room temperature voluntarily dry also solidify the same with existing inorganic zinc-rich coating; can not need the harsh pre-treatment that is coated with like that by image-tape rust priming paint again; can dissolve the slight iron rust of steel surface, change it the component of coating into.Therefore coating of the present invention is the inorganic coating of a new generation that above-mentioned three kinds of existing coatings advantage is separately combined together.Another object of the present invention is in order to reduce or to eliminate the harm that sexavalent chrome causes, other purposes of the present invention and advantage are discussed later, and are described in some use-cases.
Observe the chemical reaction of the inorganic aluminum coating solidification process of Alan's invention, can find that the original contained sexavalence chromic salts (being chromic salt) of coating is almost all reduced by the aluminium powder in the coating, changes chromic salt in the process of being heating and curing.Can express with following ionic equation:
Redox result has increased a large amount of metallic cation Cr in the coating
3+And Al
3+, while H
+The a large amount of minimizing, coating changes neutrality into by acidity.Tart weakens, make the original contained tart dihydrogen phosphate soluble in water (being primary phosphate) of coating change water-fast neutral phosphoric acid normal salt (being tertiary phosphate) into, in this simultaneously sexavalence chromic salts soluble in water also change water-fast chromic salt into, coating is with regard to completely solidified like this.Though also there is the chemical transformation of the polyphosphoric acid salt that simple phosphate transfection thickens in heat-processed, their chemical reaction is also approximate with orthophosphoric acid salt, remains by soluble acid-salt and changes insoluble neutral salt into.Above-mentioned redox reaction is to finish under the condition of heating.At room temperature because the effect of sexavalence chromic salts makes aluminium powder be in passive state, thereby coating also is in steady state, can not solidify.
From above chemical reaction as can be seen, the process that is heating and curing of coating in fact mainly is chromic reduction process, if reduce or the cancellation sexavalent chrome, the solidification value of coating will reduce even at room temperature solidify.
If in above-mentioned coating, cancel chromic salt, the acid aqueous phosphatic of this+2 and+3 valency metals, can be at room temperature and aluminium powder (or zinc powder) react, form water-fast neutral compound.Now be exemplified below with the superphosphate of divalent metal (representing) and the reaction of aluminium powder with M:
The result of above-mentioned chemical reaction makes the original contained tart dihydrogen phosphate soluble in water (being primary phosphate) of coating change water-fast neutral phosphoric acid normal salt (being tertiary phosphate) into, and coating has just been solidified.But the speed of chemical reaction can not be too fast, applies operation otherwise can't finish.Adding an amount of chromic salt can delayed response speed.The content of chromic salt (sexavalent chrome) improves. and the solidification value of coating also improves thereupon, and when the content of chromic salt reached 0.3mol/L, the minimum solidification value of coating was 500 °F.
In above-mentioned 3248251 patents, the chromate content in the regulation coating can not be lower than 0.3mol/L, just this regulation. and the solidification value that has limited coating can not be lower than 500 °F.
Have now found that, if the chromic content in its binding agent of above-mentioned coating is reduced to below the 0.29mol/L, then the curing Wen Ding of coating also descends thereupon, if again with the phosphate content in the phosphoric acid salt and+2 ,+ratio of 3 valence metal ion content remains in the suitable scope, coating is kept in for some time than stable status, during this period of time can finish applying operation.Therefore the present invention is defined as 0-0.29mol/L with the content of 6-valence Cr ions in the coating, so not only can make the coating curing temperature be lower than 480 °F even can realize under the room temperature coating from doing, and eliminates or reduce chromic harm.In coating, add the nonionic surface active agent (wherein the most suitable is polyoxyethylene aliphatic alcohol ether) of 0.01-2%, the wettability of coating is improved greatly, simplify being coated with the front surface cleaning operation.In coating, add an amount of non-chromium inhibiter the stability of slip is improved, for example add nitrate, can make that aluminium powder is in steady state in the coating less than 1mol/L.Through above change, purpose of the present invention is achieved.Phosphatic content is not less than 1mol/L in the binding agent.Metal ion mainly is a chromium, magnesium, zinc, calcium, strontium, aluminium, metal ion such as iron and manganese, phosphate radical and+2, the mole number ratio of+3 valence metal ions is 1.4～6: select in 1 scope, phosphate content and+2, when the ratio of+3 valence metal ion content is big, the acidity of coating is bigger, ratio hour, the acidity of coating also a little less than, the steel substrate that rust is arranged for the surface, preferably be coated with the acid high coating of one deck earlier, for example use phosphate radical and+2, the mole number ratio of+3 valence metal ions is the coating of 6: 1 (binder formula four), the effect that this coating dissolving transforms iron rust is stronger, after treating this layer coating drying, apply acid moderate coating again and (for example use the binding agent of prescription one, wherein phosphate radical and+2, the mole number ratio of+3 valence metal ions is 1.6: 1).Should adopt acid more weak binding agent to prepare coating for passive solia particle.Need the coated non-metallic base material or apply passive metal base also should adopt acid low coating (for example with the binding agent of prescription five, wherein phosphate radical and+2 ,+the mole number ratio of 3 valence metal ions is 1.4: 1).
Solia particle in the coating is a magnesium for corrosion-resistant coating, zinc, metal-powder such as aluminium or be the powdered alloy of base and zinc powder or the Zinc alloy powder of crossing through Passivation Treatment with these metals, zinc covering aluminium powder and zincizing aluminium powder, for conductive coating is Graphite Powder 99, silver or alloy for dental amalgam, copper or copper alloy powder, zinc or Zinc alloy powder and other powder that can conduct electricity, for solid lubricant coating is graphite, boron nitride, molybdenumdisulphide, tungsten disulfide, talcum powder, plumbous oxide and other powdered lubricant end, for refractory coating is refractory oxide, refractory nitride, refractory carbides, refractory silicide and other heat-resisting powder.Can also add oxide compound, oxyhydroxide or the phosphatic ultrafine powder of some diameters in the coating, in order to the viscosity of adjusting coating with impel coating curing less than metals such as 1 micron zinc, aluminium, magnesium.Add less than 1 in order to improve in the solidity to corrosion coating
MolThe metal inhibitor of/L, for example strontium yellow, zinc chromate or lead chromate etc., the sacrifice loss that is used for slowing down aluminium, zinc, magnesium and alloy thereof.The all solids particulate should be able to pass through 100 eye mesh screens, preferably by 325 eye mesh screens.The consumption of solia particle is decided on different purposes, and the solia particle amount that every liter of binding agent need add is selected in 10～2000 gram scopes, preferably 300～1000 grams.As the less solia particle of bonding time spent employing, for example every liter of binding agent only adds 10 gram solia particles.
In the solia particle after the oxide compound of metal (or alloy) powder such as 6 zinc, aluminium, magnesium and these metals, hydroxide powder and the adhesive gelatin reaction, make that the tart primary phosphate changes two generation phosphoric acid salt (equation 2.) in the glue.And then change complete water-fast tertiary phosphate (equation 3.) into.The transformation of the first step is carried out comparatively fast, and second step changed slower.In order to quicken the solidification process of coating, can also add some alcohol in the coating, after the coating drying, also can be coated with the basic solution (short lime set) of one deck pH value 8～14 again on its surface, accelerate two generation phosphate transfection turn to the speed of tertiary phosphate, impel the coating completely solidified.The short lime set of this alkalescence can be that the aqueous solution also can adopt alcoholic solution or other basic solution, also can be with coating of the present invention as undercoat, after treating its drying, the silicate zinc-rich coating that applies one deck alkalescence on it again is as surface layer, the two layers of coatings acid-base neutralisation plays mutual blood coagulation enhancing effect.Can be after this coating completely solidified in the various organic or inorganic coatings of its surface-coated to adapt to different needs.
Discuss technique effect of the present invention below in conjunction with coating processes.At first an advantage is that coating coating processes of the present invention is easy, thereby it has the utmost point scope of application widely.Owing to this coating can dissolve slight iron rust or oxide film and micro-greasy dirt and moisture content, therefore allow to exempt the preceding blast of coating and handle base material, add that coating can be at room temperature from doing and curing, this has just simplified coating processes greatly.This coating adopts the method for brush or spray to apply; determine the number of plies of coating and the thickness of coating according to actual needs; do not exist and resemble the phenomenon that has been coated with thick the existing silicate zinc-rich coating can cracking to come off; it can apply repeatedly according to actual needs fully and obtain very thick coating; thereby obtain the higher galvanic protection life-span; apply the dry hardening at room temperature about 1～2 hour of back coating with the aluminium powder coatings formulated; again through applying the short lime set of one deck after about 20 hours again, and then through 20～30 minutes coatings with regard to completely solidified.In order to accelerate the curing speed of aluminum coating, the aluminum coating after the dry hardening can be heated to 400～650 °F rapidly, several minutes undercoat with regard to completely solidified.Because there is the oxide film of one deck densification on the aluminium powder surface, thereby the aluminum coating after solidifying as stated above is still non-conductive, can adopt various thermals source that coating is heated rapidly to fusing point near aluminium, can make the aluminum coating conduction in the several seconds.If adopt aluminium zinc alloy powder, zinc covering aluminium powder or zincizing aluminium powder to replace pure aluminium powder, just possess electroconductibility after can making the coating self-vulcanizing, and have the advantage of aluminum coating and spelter coating concurrently.Adopting the aluminium powder coatings formulated of removing oxide film to apply also can make coating just possess electroconductibility after the air set of room temperature.Coating after the curing not only is insoluble to cold water and also is insoluble to boiling water, and anti-various organic medium long period of soaking, can swelling or rotten.This coating also has very high thermotolerance (aluminum coating thermotolerance for example of the present invention reaches 1100), oxidation-resistance and aging not, and these all are that organic coating can't be compared.The body resistivity of aluminum coating of the present invention after conducting has only 1 Ω m, is ten thousand of existing inorganic zinc-rich coating body resistivity/to 1/10000000th, because the high conductivity and the negative potential of coating, thereby obtain fabulous galvanic protection function.
Adopt the zinc powder coatings formulated to apply the back puts 1～2 hour in the air of room temperature after, be coated with the short lime set of one deck at coatingsurface again, again through coating after 10～20 minutes with regard to completely solidified.Spelter coating just possesses electroconductibility and galvanic protection function through after the self-vulcanizing.
Introduce the performance measured result of spelter coating of the present invention and aluminum coating below:
With reference to existing inorganic aluminum coating technical qualification, spelter coating of the present invention and aluminum coating are carried out the performance investigation, except the thermotolerance of spelter coating lower slightly (because of the fusing point of zinc is lower than aluminium), all other performances all meet or exceed the technical indicator of existing inorganic aluminum coating, see following table for details:
Investigate this coating by existing aluminum coating technological standard
| Test event | Existing inorganic aluminum coating technical indicator | Coating test result of the present invention | |
| Spelter coating | Aluminum coating | ||
| Adhesive power | Crooked 90 ° of coatings are not loose or peel off | Qualified | Qualified |
| Thermotolerance | 700 °F 23 hours+1075 °F 4 hours, coating is not broken or is bubbled | 700 23 hours+780 4 hours coatings are intact | 700 °F 23 hours+1075 °F 4 hours qualified |
| Hot water resistance | Boiling water boil do not split in 10 minutes non-foaming, the dissolving of no component, adhesive power is still qualified | Boiling water boil 60 minutes qualified | Boiling water boil 60 minutes qualified |
| Fuel resistance | Fuel oil soaked 4 hours, and adhesive power is still qualified | Soak 1000 hours qualified | Soak 1000 hours qualified |
| Heat-resisting oiliness | 400 deep fats 8 hours do not peel off non-foaming | Qualified | Qualified |
| Erosion resistance | Coating is carved along the test piece diagonal lines and is broken " X " shape, and the matrix metal corrosion does not appear in spray salt fog 100 hours | 1000 hours qualified | 1000 hours qualified |
Coating of the present invention not only can be made corrosion-resistant coating, also can replace above-mentioned zinc powder or aluminium powder with other pressed powder by different needs, makes the coating of other specific function.For example adopt binding agent of the present invention, blending graphite, molybdenumdisulphide, boron nitride or other lubricated powder can be made high temperature lubricating coating; Blending silver powder, graphite, copper powder, zinc powder or other conductive powder can be made conductive coating; Blending refractory oxide powder or other heat-resisting powder can be made refractory coating.The common feature of these coatings is that low-temperature curing high temperature uses, and not only can be coated on the metal, but also can be coated on the non-metallic substrate, as be coated on plastics, glass or the pottery, so the present invention has purposes very widely.
Introduce some embodiments of the present invention below, they are some typical case's representatives, do not comprise full content of the present invention, therefore should not be construed as limitation of the present invention.
(1) preparation of binding agent
An aluminium hydroxide [Al (OH) fills a prescription
3] 1.35mol phosphoric acid (H
3PO
4) 2.2mol magnesium oxide (MgO) 0.02mol strontium nitrate [Sr (NO
3)
2] 0.05mol nonionogenic tenside [RO (CH
2CH
2O-)
n-H] 0.2g water (H
2O) to 1L
Prescription bisphosphate aluminium (AlPO
4) 1.3mol magnesium bichromate, (MgCr
2O, 6H
2O) 0.04mol phosphoric acid (H
2PO
4) 0.86mol zinc oxide (ZnO) 0.03mol nonionogenic tenside [RO (CH
2CH
2O-)
n-H] 0.2g water (H
2O) to 1L
Prescription triphosphoric acid (H
3PO)
42.3mol aluminium hydroxide [Al (OH)
3] 1.2mol magnesium oxide (MgO) 0.05mol zinc oxide (ZnO) 0.2mol nonionogenic tenside [RO (CH
2CH
2O-)
n-H] 0.2g water (H
2O) to 1L
Prescription four
Aluminum phosphate (AlPO
4) 0.18mol
Phosphoric acid (H
3PO
4) 1.08mol
Magnesium oxide (MgO) 0.03mol
Chromic anhydride (CrO
3) 0.05mol
Nonionogenic tenside [RO (CH
2CH
2O-)
n-H 0.2g
Water (H
2O) to 1L
Prescription five
Phosphoric acid (H
3PO)
42mol
Aluminium hydroxide [Al (OH)
3] 1.2mol
Magnesium oxide (MgO) 0.03mol
Zinc oxide (ZnO) 0.2mol
Nonionogenic tenside [RO (CH
2CH
2O-)
n-H] 0.2g
Water (H
2O) to 1L
(2) preparation of short lime set
Prescription one
Quadrol (H
2NCH
2CH
2NH
2) 10g
Water (H
2O) 20g
Industrial alcohol 70g
Prescription two
A liquid B liquid
Chromic anhydride (CrO
3) 10g strontium nitrate [Sr (NO
3)
2] 40g
Sodium hydroxide (NaOH) 10g water (H
2O) 60g
Water (H
2O) 80g
Earlier on coating, be coated with A liquid, be coated with B liquid after drying again.Prescription two not only plays the setting accelerator effect, but also can fill the strontium yellow precipitation in the hole of coating, thereby delays the sacrifice loss of zinc or aluminium.Strontium nitrate in the B liquid can be used zinc nitrate [Zn (NO
3)
2] or lead nitrate [Pb (NO
3)
2] replace, formation zinc chromate or precipitation of lead chromate play a part same in coating porosity.
Prescription three
Yellow soda ash (Na
2CO
3) 15g
Water (H
2O) to 100ml
Prescription four
Saturated potassium carbonate (K
2CO
3) aqueous solution
The various alkaline liquids of other various pH values in 8～14 scopes except above four prescriptions comprise that the aqueous solution, alcoholic solution, other basic solution and their mixed solution all can be used as short lime set and use.
(3) implementation example of applying coating
Embodiment one
Binding agent (by prescription two) 1L
Zinc powder (particle diameter 5～10 μ m) 900g
Be coated in 5 carbon steel test pieces of light rust about 45～55 μ m of coat-thickness after stirring evenly.Coating is placed after 2 hours in the air of room temperature, applies the short lime set of one deck again, wipes raffinate after drying in the air 20 minutes, and recording body resistivity is 0.6～1 Ω .m.Get 2 test pieces and boiled in boiling water one hour, coating is excellent.Its excess-three sheet is drawn " X " with sharp device and is exposed to matrix steel on coating, place the salt fog cabinet of 5%Nacl to keep 95 °F, the no iron rust appearance through 1000 hours.
Embodiment two
Binding agent (by prescription one) 1L
Aluminium powder (particle diameter 4～5 μ m ball-type aluminium powders) 330g
Be coated in 8 thick carbon steel test pieces of 1mm about 55～65 μ m of coat-thickness after stirring evenly.Dried in the air under the room temperature 1 hour, the dry hardening of coating, nail is scraped, and with oxyacetylene torch test piece is burnt fast to dark red, and about 0.2～0.5 Ω m of coating body resistivity is surveyed in the cooling back, gets 2 test pieces along 90 ° of the curvature bendings of diameter 8mm, and coating does not come off.Get other 3 test pieces by embodiment 1 similarity condition and carry out salt-fog test no iron rust appearance in 1000 hours.Get 3 remaining test pieces and make thermal test, excellent through 100 hours coatings of 1050 bakings.
Embodiment three
Knot agent (by prescription five) 1L
Graphite (colloid powder) 200g
Magnesium oxide (particle diameter is less than 1 μ m) 0.2mol
Aluminium hydroxide (particle diameter is less than 1 μ m) 0.15mol
Ethanol 500ml
Be coated on nonmetallic surfaces such as pottery, glass or plastics, placed under the room temperature 24 hours, apply the short lime set of one deck (by prescription four) again and dry, the coating conduction is good, and has lubrication.Be applied to the equadag coating on the pottery, anti-1500 high temperature.
Embodiment four
Replace the 200g coated with graphite on high temperature steel with the 500g boron nitride, coating processes is with embodiment 3, and coating has well lubricated and antifriction function, and coating can anti-1800 °F not be broken in 50 hours.
Embodiment five
Replace graphite with 500g molybdenumdisulphide, be coated on the steel part, coating processes is with embodiment 3, and coating has well lubricated and antifriction function.
Embodiment six
Replace graphite with the 600g aluminum oxide, be applied on the stainless steel, coating processes is with embodiment 3, coating ability high temperature and heat-blocking action is arranged more than 1500.
Embodiment seven
Aluminium zinc powder with 700g (95%Zn 5%AL) replaces zinc powder, and other is with embodiment 1, and the corrosion resisting property of coating is better than spelter coating.
Embodiment eight
Aluminium zinc powder with 460g (55%AL, 43.5%Zn, 1.5% silicon) replaces the 330g aluminium powder, and other is with embodiment 2.The every performance of coating and the aluminum coating of example 2 are very approaching, but the galvanic protection function is not better than aluminum coating in having the corrosive medium of chlorion.
Embodiment nine
Increase the 2g strontium yellow in embodiment 1, other can prolong the protection life-span of spelter coating with example 1.
Embodiment ten
Formulation for coating material is with embodiment 1, but is not coated with short lime set after drying in the air 2 hours in coating and the air in room temperature applying, and on coating the very thin existing potassium silicate zinc-rich coating of one deck that is coated with, utilize the different acid-basicity of two kinds of coatings, play mutual blood coagulation enhancing effect.
Embodiment 11
Binding agent (by prescription two) 1L
Silver powder (325 order) 1330g
Zinc powder (325 order) 6.4g
Aluminium hydroxide (colloid powder) 24g
Be coated on the non-metallic substrates such as pottery, plastics or glass, placed in air at room temperature 24～72 hours after being coated with, apply the short lime set of one deck (by prescription four) then, to be dried and curing back is cleaned and is fallen to urge the lime set residue, and the coating conduction is good.
Embodiment 12
A moment is soaked in the steel test piece in the gasoline that contains 0.1% machine oil, taking out to dry in the test piece of back has the skim oil film, and according to carrying out salt-fog test behind same coating of embodiment 1 and the method applying coating, effect is identical with example 1.
Embodiment 13
Press the test piece of embodiment 1 and example 2 applying coatings and soak taking-up after 3000 hours in kerosene, coating is as excellent as before, and every after tested performance is constant.
Claims (8)
1. coating, it is made up of binding agent and inoganic solids particulate, it is characterized in that the binding agent of coating is+2 and the inorganic phosphate of+3 valency metals and chromic salt or dichromate be scattered in the formed viscous glue solution of water.Phosphatic content is not less than 1 in above-mentioned binding agent
Mol/ L, phosphate radical and+2 ,+the mole number ratio of 3 valence metal ion total amounts is 1.4～6: the content of 1 ,+6 valency chromium is 0～0.29
MolThe amount of the inoganic solids particulate that/L, every liter of binding agent need be in harmonious proportion is 10～2000g, and the coating heating curable also can at room temperature dry voluntarily and sclerosis, forms coating.
2. by the described coating of claim 1, wherein+2 the inorganic phosphate with+3 valency metals is selected from inorganic phosphate of magnesium, zinc, aluminium, calcium, strontium, iron, manganese and chromium and composition thereof.
3. by the described coating of claim 1, be added with metal inhibitor, its addition is less than 1
Mol/ L.
4. by the described coating of claim 1, be added with nitrate, its addition is less than 1
Mol/ L.
5. by the described coating of claim 1, being added with its content of nonionogenic tenside is 0.01～2%.
6. by the described coating of claim 5, nonionogenic tenside wherein is a polyoxyethylene aliphatic alcohol ether.
7. by the described coating of claim 1, inoganic solids particulate wherein is selected from aluminium powder, Al alloy powder, zinc powder, Zinc alloy powder, the magnesium powder, the magnesium alloy powder, silver powder, alloy for dental amalgam, copper powder, copper alloy powder, the zinc powder that blunt China is crossed, remove the aluminium powder of oxide film, the zinc covering aluminium powder, the zincizing aluminium powder, graphite, molybdenumdisulphide, tungsten disulfide, talcum powder, plumbous oxide, boron nitride, magnesium oxide, magnesium hydroxide, zinc oxide, zinc hydroxide, aluminum oxide, aluminium hydroxide, trimagnesium phosphate, zinc phosphate, aluminum phosphate, strontium yellow, zinc chromate, lead chromate, refractory oxide, refractory nitride, refractory carbides, the mixture of refractory silicide and above-mentioned two or more solia particles, all solids particulate should be able to pass through 100 eye mesh screens.
8. coating that forms by the following method, it is characterized in that applying earlier the described coating of one deck claim 1, after drying and the sclerosis, apply the short lime set of skim again at coatingsurface, quicken the solidification process of coating, should short lime set be the alkaline liquid of pH value 8～14, be selected from the aqueous solution of alkalescence, alcoholic solution, other basic solution and their mixture of alkalescence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111948A CN1111569C (en) | 1998-04-13 | 1998-04-13 | Inorganic phosphate paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111948A CN1111569C (en) | 1998-04-13 | 1998-04-13 | Inorganic phosphate paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1232060A CN1232060A (en) | 1999-10-20 |
| CN1111569C true CN1111569C (en) | 2003-06-18 |
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ID=5221832
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98111948A Expired - Fee Related CN1111569C (en) | 1998-04-13 | 1998-04-13 | Inorganic phosphate paint |
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| CN102417744A (en) * | 2011-11-24 | 2012-04-18 | 北方涂料工业研究设计院 | Phosphate-based high-temperature-resistant anti-corrosion paint and preparation method thereof |
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| CN109020554A (en) * | 2018-09-21 | 2018-12-18 | 东北大学 | Stainless steel crucible coating and preparation method thereof for Melting of Al-li Alloy |
| CN109020554B (en) * | 2018-09-21 | 2021-02-26 | 东北大学 | Stainless steel crucible coating for smelting aluminum-lithium alloy and preparation method thereof |
Also Published As
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| CN1232060A (en) | 1999-10-20 |
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