CN106103800A - 镁基材的预处理 - Google Patents
镁基材的预处理 Download PDFInfo
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- CN106103800A CN106103800A CN201580013575.XA CN201580013575A CN106103800A CN 106103800 A CN106103800 A CN 106103800A CN 201580013575 A CN201580013575 A CN 201580013575A CN 106103800 A CN106103800 A CN 106103800A
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- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 29
- 239000011777 magnesium Substances 0.000 title claims abstract description 29
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000000758 substrate Substances 0.000 title claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 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 claims abstract description 12
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 7
- 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 claims abstract description 7
- 229940068041 phytic acid Drugs 0.000 claims abstract description 7
- 239000000467 phytic acid Substances 0.000 claims abstract description 7
- 235000002949 phytic acid Nutrition 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 150000001447 alkali salts Chemical class 0.000 claims abstract description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 10
- 239000011737 fluorine Substances 0.000 claims description 10
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000002585 base Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000011253 protective coating Substances 0.000 claims description 3
- 150000002680 magnesium Chemical class 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 229910017665 NH4HF2 Inorganic materials 0.000 claims 1
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 claims 1
- 159000000007 calcium salts Chemical class 0.000 claims 1
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 150000002221 fluorine Chemical class 0.000 claims 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract description 15
- 235000021317 phosphate Nutrition 0.000 abstract description 6
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004327 boric acid Substances 0.000 abstract description 4
- LLSDKQJKOVVTOJ-UHFFFAOYSA-L calcium chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Ca+2] LLSDKQJKOVVTOJ-UHFFFAOYSA-L 0.000 abstract description 3
- 229940052299 calcium chloride dihydrate Drugs 0.000 abstract description 3
- 238000007781 pre-processing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 239000006210 lotion Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 229920001451 polypropylene glycol Polymers 0.000 description 6
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- 230000007797 corrosion Effects 0.000 description 5
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- 239000000843 powder Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- KVBCYCWRDBDGBG-UHFFFAOYSA-N azane;dihydrofluoride Chemical compound [NH4+].F.[F-] KVBCYCWRDBDGBG-UHFFFAOYSA-N 0.000 description 3
- 229960005069 calcium Drugs 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- SQUHHTBVTRBESD-UHFFFAOYSA-N Hexa-Ac-myo-Inositol Natural products CC(=O)OC1C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O SQUHHTBVTRBESD-UHFFFAOYSA-N 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
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- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 150000001845 chromium compounds Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- CDAISMWEOUEBRE-GPIVLXJGSA-N inositol Chemical compound O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@@H]1O CDAISMWEOUEBRE-GPIVLXJGSA-N 0.000 description 2
- 229960000367 inositol Drugs 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012669 liquid formulation Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- -1 phospho Chemical class 0.000 description 2
- CDAISMWEOUEBRE-UHFFFAOYSA-N scyllo-inosotol Natural products OC1C(O)C(O)C(O)C(O)C1O CDAISMWEOUEBRE-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 description 2
- 150000003754 zirconium Chemical class 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229960002713 calcium chloride Drugs 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 239000003178 glass ionomer cement Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910001512 metal fluoride Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- DXIGZHYPWYIZLM-UHFFFAOYSA-J tetrafluorozirconium;dihydrofluoride Chemical compound F.F.F[Zr](F)(F)F DXIGZHYPWYIZLM-UHFFFAOYSA-J 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- C—CHEMISTRY; METALLURGY
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- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/57—Treatment of magnesium or alloys based thereon
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Abstract
本发明公开了在涂覆保护和/或装饰表面涂层之前，用于预处理镁基材的方法以及组合物。该预处理组合物包含(a)包含至少4个磷酸基的化合物以及(b)可溶解的碱土金属盐。在实例中，该组合物包含肌醇六磷酸，氯化钙二水合物和四氟硼酸以及采用氢氧化钾将pH调节到3。
Description
技术领域
本发明涉及在涂覆保护涂层和/或装饰涂层之前用于镁基材预处理的组合物。
背景技术
镁在结构工程中是一种吸引人的金属。与铝以及钢相比较，镁具有更高的强度/重量比，使得镁可以用于诸如汽车以及消费电子产品之类的各种装置的结构。然而，如果镁不进行氧化防护的话，则显示对后续涂覆涂层的粘附力较差。为解决这个问题，在覆盖铬化合物比如铬酸以抑制氧化而促进粘附力之前镁一般被预先处理。尽管有效，但是该铬化合物仍然不是所需要的，因为铬化合物毒性以及随之而来清除问题。因此需要镁基材预处理中铬的替代物。
发明内容
本发明提供在涂覆涂层至镁基材表面之前用于处理镁基材的组合物。该组合物包含具有至少4个磷酸基的化合物以及可溶性碱土金属盐。
本发明还提供通过使镁基材接触上述组合物来处理镁基材的方法。
发明详述
如本文所用,除非以另外方式清楚地说明，诸如那些表示数值、范围、数量或者百分比之类的所有数字都读作如由措词"约"开头一样，即使该措辞未明确地出现。本申请列举任何数值范围意指包括包含在其中的全部子区间。复数包含单数，反之亦然。
具有至少4个磷酸基的化合物可以是天然存在材料比如具有6个磷酸基的肌醇六磷酸或者可以是合成材料比如通过使包含至少4个羟基的多元醇例如季戊四醇、二季戊四醇或者山梨糖醇与化学当量的磷酸(1摩尔多元醇/4摩尔磷酸)反应获得的那些。除那些形成磷酸酯的磷酸之外，也可以使用有机膦酸。
该碱土金属盐可以是钙或者锶的盐比如硝酸钙、硝酸锶以及氯化钙，其可溶于该处理组合物。
氟源可以存在于该处理组合物以及可以衍生自提供游离氟源的氢氟酸、氟化铵、氟化钠、氟化氢铵以及氢氟化钠，或者可以来自复合金属氟化物盐比如四氟硼酸或者六氟锆酸。
上述成分一般采用低剪切混合被加到水中以形成含水预处理组合物的溶液。包含至少4个磷酸基的成分存在的数量一般为0.01％-20％，一般0.1-2重量％，以及该碱土金属盐存在的数量为0.01％-5％，一般0.1-1重量％。重量百分比基于该含水预处理组合物的总重量。氟存在的数量是0-500百万分之一(ppm)，一般10-40ppm。
任选的成分比如表面活性剂以及消泡剂可以存在于该组合物中以及，如果存在的话，则存在的数量高达0.01-5重量％，基于含水预处理组合物重量。
该处理组合物的pH可以在1和10之间变化,一般1-5以及可以用氢氧化钠或者氢氧化钾调整。
除镁之外,镁的合金比如镁锌以及镁铝合金可以按照本发明所述进行预处理。此外，包含一种以上金属的基材比如还包含铝表面和钢表面如与汽车有关金属表面可以与本发明的含水预处理组合物接触。尽管这些金属表面可能需要用其它组合物预处理用于表面保护以及对随后涂覆涂层粘附，但是本发明组合物不会不利影响这些金属的性能。
该含水预处理组合物可以通过常规方法，比如喷射、刷涂、辊涂或者浸没技术与镁基材接触。该组合物温度一般20至49℃、一般20至37℃，接触时间为5秒至20分钟、一般1至5分钟。
在接触以前,该镁基材一般通过物理或者化学方式清洗继之以用水清洗。在接触以后，该预处理基材与该处理区域分离以及用水清洗以及在27至49℃干燥1至5分钟。
然后该预处理基材接着涂覆保护和/或装饰表面涂料比如粉末涂料、阴离子或者阳离子电沉积涂料、粉末涂料、以及由非电泳技术施加的液体油漆比如有机溶剂基油漆或者水基涂料，二者都可以是高含固量。
实施例
本发明进一步由以下非限制实施例举例说明。全部份数按重量计，除非另有说明。
实施例1(对比)
将AZ31B-H24镁合金面板从Metalmart International(Commerce，CA)获得用于试验。将该面板在碱性清洗剂中在120°F(49℃)清洗以及脱脂两分钟以及用去离子水清洗30秒。该碱性清洗剂组成为在去离子水中的1.25wt％的Chemkleen 2010LP(PPG Industries，Inc.，Cleveland，OH)以及0.13wt％的Chemkleen 181ALP(PPG Industries，Inc.)。
通过添加122g肌醇六磷酸溶液(水中40-50％w/w，Acros-Organics)至10.8l的去离子水来制备用于处理该清洗和脱脂面板的组合物。使用氢氧化钾(在水中45％w/w)将该浴液的pH调节至2。在浴液中标称肌醇六磷酸含量是0.5％重量。
面板在环境温度下浸在该组合物中2分钟,用去离子水清洗30秒，以及热空气(130°F[54℃])干燥。
实施例2(对比)
本实施例沿用实施例1公开的处理方法。
通过添加122g的肌醇六磷酸溶液以及9.5g的氟化氢铵粉末(Fischer Chemicals)至10.8l的去离子水制备该处理组合物。使用氢氧化钾将该浴液的pH调节至2.5。肌醇六磷酸以及游离氟的标称含量分别是0.5％以及100ppm。
实施例3(对比)
本实施例沿用实施例1公开的处理方法。
通过添加122g的肌醇六磷酸溶液以及19.1g的氟化氢铵粉末至10.8l的去离子水制备该处理组合物。使用氢氧化钾将该浴液的pH调节至2.5。肌醇六磷酸以及游离氟的标称含量分别是0.5％以及200ppm。
实施例4
本实施例沿用实施例1公开的处理方法。
通过添加122g的肌醇六磷酸溶液以及100g的氯化钙二水合物粉末(FischerChemicals)至10.8l的去离子水制备该处理组合物。使用氢氧化钾将该浴液的pH调节至2。肌醇六磷酸以及钙的标称含量分别是0.5％以及0.25％。
实施例5
本实施例沿用实施例1公开的处理方法。
通过添加122g的肌醇六磷酸溶液、40g的氯化钙二水合物粉末以及22g四氟硼酸酸性溶液(在水中50％w/w，Riedel-de Haen)至10.8l的去离子水制备该处理组合物。使用氢氧化钾将该浴液的pH调节至3。肌醇六磷酸标称含量是0.5％、钙是0.1％、四氟硼酸酸是0.1％以及游离氟是20ppm。
实施例6(对比)
本实施例沿用实施例1公开的处理方法。
通过添加18.2g六氟锆酸(在水中45％w/w)，20g硝酸铜(在水中2％w/w)以及15g的Chemfos AFL(PPG Industries，Inc.)至18.2l水而制备该处理组合物。用Chemfil Buffer(碱性缓冲液溶液，PPG Industries，Inc.)将pH调整至4.7。该锆含量大约200ppm、铜是20ppm、以及游离氟是50ppm。
实施例7(对比)
本实施例沿用实施例1公开的处理方法。
通过添加18.2g六氟锆酸制备该处理组合物(在水中45％w/w)，20g硝酸铜(在水中2％w/w)以及15g的Chemfos AFL(PPG Industries，Inc.)至18.2l的水。该浴液在补偿pH，2下使用。该锆含量大约200ppm、铜20ppm、以及游离氟50ppm。
在试验以前，全部面板使用产自PPG Industries的阴极环氧树脂油漆Powercron6000CX经由电沉积涂覆。该油漆沉积使用电压大约200V、以及接着在350°F(177℃)使它们固化25分钟。
以下表I包含按照本发明所述使用不同的浴液配方以涂覆所研究基材的结果。盐水喷雾试验NSS以及循环腐蚀GMW14872结果表明通过使用之前描述的新颖浴液配方，相比肌醇六磷酸单独以及标准锆涂覆，耐腐蚀性增加明显。
1盐水喷雾腐蚀试验按ASTM B117。
2循环腐蚀试验通过旋转试验面板穿过盐溶液、室温干燥、湿气以及低温按照General Motors Test Method GMW14872。
3由于严重腐蚀，面板从盐雾试验除去，影响面板完整性。
尽管本发明具体实施方案已经如上所述举例说明,然而对本领域普通技术人员显而易见的是本说明书细节可以进行很多变化而不背离本发明，如附加权利要求书所限定那样。
尽管本发明各种实施方案已经按术语"包含"公开，然而"基本上由...组成"或者"由...组成"的实施方案也在本发明范围内。
Claims (14)
1.在镁基材上涂覆表面涂层之前用于处理镁基材的组合物；该组合物包含：
(a)包含至少四个磷酸基的化合物，以及
(b)可溶解的碱土金属盐。
2.权利要求1的组合物，其中(a)是肌醇六磷酸或者其盐。
3.权利要求1的组合物，还包含氟源。
4.权利要求3的组合物，其中该氟源选自HF、NH4F以及NH4HF2。
5.权利要求1的组合物，其中(b)是钙盐。
6.处理镁基材的方法，包括使镁基材接触权利要求1的组合物。
7.处理镁基材的方法，包括使镁基材接触权利要求2的组合物。
8.处理镁基材的方法，包括使镁基材接触权利要求3的组合物。
9.处理镁基材的方法，包括使镁基材接触权利要求4的组合物。
10.处理镁基材的方法，包括使镁基材接触权利要求5的组合物。
11.权利要求6的方法，其中在已经接触该镁基材之后、将该基材采用防护涂料涂覆。
12.权利要求11的方法，其中该防护涂料包括有机溶剂基涂料、粉末涂料、或者电解沉积涂料。
13.消费电子设备，其通过权利要求6的方法处理。
14.消费电子设备，其通过权利要求11的方法电涂覆。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/184,998 US20150232671A1 (en) | 2014-02-20 | 2014-02-20 | Pretreatment of magnesium substrates |
| US14/184,998 | 2014-02-20 | ||
| PCT/US2015/016618 WO2015127080A1 (en) | 2014-02-20 | 2015-02-19 | Pretreatment of magnesium substrates |
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| CN106103800A true CN106103800A (zh) | 2016-11-09 |
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| CN201580013575.XA Pending CN106103800A (zh) | 2014-02-20 | 2015-02-19 | 镁基材的预处理 |
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| US (2) | US20150232671A1 (zh) |
| EP (1) | EP3108036A1 (zh) |
| CN (1) | CN106103800A (zh) |
| AU (1) | AU2015218940B2 (zh) |
| RU (1) | RU2662179C2 (zh) |
| TW (1) | TWI679306B (zh) |
| WO (1) | WO2015127080A1 (zh) |
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| CN106868486B (zh) * | 2015-12-14 | 2019-07-23 | 宝山钢铁股份有限公司 | 一种镁合金用复合物化学转化膜的成膜处理剂及成膜工艺 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2037328A (en) * | 1978-12-07 | 1980-07-09 | Nihon Parkerizing | Surface processing solution and surface treatment for aluminum or aluminum alloy substrate |
| JP2003253459A (ja) * | 2002-02-26 | 2003-09-10 | Iwate Prefecture | 表面処理剤、表面処理方法、及び表面処理された製品 |
| CN102660736A (zh) * | 2012-05-16 | 2012-09-12 | 广州有色金属研究院 | 一种镁合金表面转化处理液及其处理方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU1711506C (ru) * | 1989-09-08 | 1994-08-15 | ВНИИ авиационных материалов | Способ получения защитного покрытия на деталях из магниевых сплавов, преимущественно крупногабаритных |
| JPH08109201A (ja) * | 1994-10-12 | 1996-04-30 | Shin Etsu Chem Co Ltd | 重合体スケール付着防止剤及びそれを使用する重合体製造方法 |
| US6281774B1 (en) * | 1999-09-10 | 2001-08-28 | Sumitomo Special Metals Co., Ltd. | Corrosion-resistant permanent magnet and method for producing the same |
| US9574093B2 (en) * | 2007-09-28 | 2017-02-21 | Ppg Industries Ohio, Inc. | Methods for coating a metal substrate and related coated metal substrates |
| CN100588740C (zh) * | 2008-02-22 | 2010-02-10 | 陈东初 | 镁合金表面制备耐腐蚀性钝化膜的无铬处理液及其使用方法 |
| DE102008000600B4 (de) * | 2008-03-11 | 2010-05-12 | Chemetall Gmbh | Verfahren zur Beschichtung von metallischen Oberflächen mit einem Passivierungsmittel, das Passivierungsmittel, die hiermit erzeugte Beschichtung und ihre Verwendung |
| JP5813358B2 (ja) * | 2011-04-21 | 2015-11-17 | 株式会社Uacj | 高成形性Ａｌ−Ｍｇ−Ｓｉ系合金板及びその製造方法 |
-
2014
- 2014-02-20 US US14/184,998 patent/US20150232671A1/en not_active Abandoned
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2015
- 2015-02-19 RU RU2016137422A patent/RU2662179C2/ru not_active IP Right Cessation
- 2015-02-19 EP EP15714047.6A patent/EP3108036A1/en not_active Withdrawn
- 2015-02-19 WO PCT/US2015/016618 patent/WO2015127080A1/en active Application Filing
- 2015-02-19 AU AU2015218940A patent/AU2015218940B2/en not_active Ceased
- 2015-02-19 CN CN201580013575.XA patent/CN106103800A/zh active Pending
- 2015-02-24 TW TW104105909A patent/TWI679306B/zh not_active IP Right Cessation
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2018
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2037328A (en) * | 1978-12-07 | 1980-07-09 | Nihon Parkerizing | Surface processing solution and surface treatment for aluminum or aluminum alloy substrate |
| JP2003253459A (ja) * | 2002-02-26 | 2003-09-10 | Iwate Prefecture | 表面処理剤、表面処理方法、及び表面処理された製品 |
| CN102660736A (zh) * | 2012-05-16 | 2012-09-12 | 广州有色金属研究院 | 一种镁合金表面转化处理液及其处理方法 |
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| AU2015218940A1 (en) | 2016-09-22 |
| WO2015127080A1 (en) | 2015-08-27 |
| US20180319997A1 (en) | 2018-11-08 |
| RU2016137422A (ru) | 2018-03-23 |
| RU2662179C2 (ru) | 2018-07-24 |
| TW201538792A (zh) | 2015-10-16 |
| AU2015218940B2 (en) | 2017-06-29 |
| RU2016137422A3 (zh) | 2018-03-23 |
| TWI679306B (zh) | 2019-12-11 |
| US20150232671A1 (en) | 2015-08-20 |
| EP3108036A1 (en) | 2016-12-28 |
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