JP5697562B2 - 被覆された締結部品 - Google Patents
被覆された締結部品 Download PDFInfo
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- JP5697562B2 JP5697562B2 JP2011167773A JP2011167773A JP5697562B2 JP 5697562 B2 JP5697562 B2 JP 5697562B2 JP 2011167773 A JP2011167773 A JP 2011167773A JP 2011167773 A JP2011167773 A JP 2011167773A JP 5697562 B2 JP5697562 B2 JP 5697562B2
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- surface treatment
- treatment liquid
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- coating
- fastening part
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- 238000004381 surface treatment Methods 0.000 claims description 57
- 239000007788 liquid Substances 0.000 claims description 52
- 238000000576 coating method Methods 0.000 claims description 44
- 239000011248 coating agent Substances 0.000 claims description 43
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 19
- 229910052725 zinc Inorganic materials 0.000 claims description 19
- 239000011701 zinc Substances 0.000 claims description 19
- 239000002738 chelating agent Substances 0.000 claims description 17
- 150000003839 salts Chemical class 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- YOYLLRBMGQRFTN-SMCOLXIQSA-N norbuprenorphine Chemical compound C([C@@H](NCC1)[C@]23CC[C@]4([C@H](C3)C(C)(O)C(C)(C)C)OC)C3=CC=C(O)C5=C3[C@@]21[C@H]4O5 YOYLLRBMGQRFTN-SMCOLXIQSA-N 0.000 claims description 13
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 7
- 150000002681 magnesium compounds Chemical class 0.000 claims description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 5
- QQFLQYOOQVLGTQ-UHFFFAOYSA-L magnesium;dihydrogen phosphate Chemical compound [Mg+2].OP(O)([O-])=O.OP(O)([O-])=O QQFLQYOOQVLGTQ-UHFFFAOYSA-L 0.000 claims description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 5
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical group OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims description 4
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 4
- 239000001095 magnesium carbonate Substances 0.000 claims description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 description 33
- 230000007797 corrosion Effects 0.000 description 33
- 229910019142 PO4 Inorganic materials 0.000 description 18
- 239000010452 phosphate Substances 0.000 description 18
- 235000021317 phosphate Nutrition 0.000 description 18
- -1 phosphate compound Chemical class 0.000 description 17
- 238000000034 method Methods 0.000 description 14
- 238000007747 plating Methods 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- 239000003973 paint Substances 0.000 description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000012736 aqueous medium Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000006482 condensation reaction Methods 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 4
- 239000000347 magnesium hydroxide Substances 0.000 description 4
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- NMGYKLMMQCTUGI-UHFFFAOYSA-J diazanium;titanium(4+);hexafluoride Chemical compound [NH4+].[NH4+].[F-].[F-].[F-].[F-].[F-].[F-].[Ti+4] NMGYKLMMQCTUGI-UHFFFAOYSA-J 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001845 chromium compounds Chemical class 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BFDQRLXGNLZULX-UHFFFAOYSA-N titanium hydrofluoride Chemical compound F.[Ti] BFDQRLXGNLZULX-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229940120146 EDTMP Drugs 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910007567 Zn-Ni Inorganic materials 0.000 description 1
- 229910007614 Zn—Ni Inorganic materials 0.000 description 1
- KIDJHPQACZGFTI-UHFFFAOYSA-N [6-[bis(phosphonomethyl)amino]hexyl-(phosphonomethyl)amino]methylphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCCCCCN(CP(O)(O)=O)CP(O)(O)=O KIDJHPQACZGFTI-UHFFFAOYSA-N 0.000 description 1
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- OXAUNDBQHKIUSD-UHFFFAOYSA-N azanium;titanium;fluoride Chemical compound [NH4+].[F-].[Ti] OXAUNDBQHKIUSD-UHFFFAOYSA-N 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910001430 chromium ion Inorganic materials 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 229940090960 diethylenetriamine pentamethylene phosphonic acid Drugs 0.000 description 1
- RXCBCUJUGULOGC-UHFFFAOYSA-H dipotassium;tetrafluorotitanium;difluoride Chemical compound [F-].[F-].[F-].[F-].[F-].[F-].[K+].[K+].[Ti+4] RXCBCUJUGULOGC-UHFFFAOYSA-H 0.000 description 1
- HLJCWGPUCQTHFY-UHFFFAOYSA-H disodium;hexafluorotitanium(2-) Chemical compound [F-].[F-].[Na+].[Na+].F[Ti](F)(F)F HLJCWGPUCQTHFY-UHFFFAOYSA-H 0.000 description 1
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 description 1
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- UWTJALAXUKLZON-UHFFFAOYSA-I lithium titanium(4+) pentafluoride Chemical compound [Li+].[F-].[F-].[F-].[F-].[F-].[Ti+4] UWTJALAXUKLZON-UHFFFAOYSA-I 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical class [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001463 metal phosphate Inorganic materials 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical group [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- SQTLECAKIMBJGK-UHFFFAOYSA-I potassium;titanium(4+);pentafluoride Chemical compound [F-].[F-].[F-].[F-].[F-].[K+].[Ti+4] SQTLECAKIMBJGK-UHFFFAOYSA-I 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003682 vanadium compounds Chemical class 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
Description
表面処理液として、第一リン酸アルミニウム(Al/P原子比=0.9/3)8.5%、と、チタンフッ化水素酸4.0%と、チタンフッ化アンモニウム0.8%と、水酸化マグネシウム0.6%と、キレート剤として、1−ヒドロキシエチリデン−1,1−ジホスホン酸7.1%と、水酸化マグネシウム0.6%、残部が水からなる水溶液を調整した。このときのpHは1.1であった。さらに、この水溶液にアンモニア水溶液をアンモニア換算で6.8%加えpHを3.3に調整することによって、表面処理液を製造した。この表面処理液の安定性を下記に示す方法で評価した。結果を表1に示す。
表面処理液を調整後、差をより明確に把握するため、40℃で1ヶ月間保持し、沈殿物の状態を目視で確認し評価した。
ねじ部材に表面処理液を塗布し、100℃で焼き付け後、JIS Z−2371規格に準拠した塩水噴霧装置を用いて、塩水濃度5%、槽内温度35℃、噴霧圧力200psi(14.1kg/cm2)の条件で塩水噴霧環境に曝し、試験96時間後に、表面に白錆の発生したねじの本数を目視にて確認した。
表面処理液の組成を表1に示すとおりとした他は、実施例1と同様に実施することによって、実施例2〜7および参考例1で使用する表面処理液を製造した。各表面処理液の安定性を実施例1と同じ方法で評価した。結果を表1に示す。また、前記各表面処理液を実施例1と同様に亜鉛めっきされたねじに塗布して、焼き付けし実施例2〜7および参考例1のねじを製造した。
その耐食性を実施例1と同様に評価した。
実施例1と同様にして表面に皮膜を形成したねじの表面に、上塗り塗料として、市販のポリエステル系塗料(大豊塗料株式会社製、商品名マイコート黒色)を用いて、その塗料中に浸漬し引き上げて遠心振り切りにより、この被覆ねじの表面に上塗り塗料による被覆をおこなった。これを140℃で焼き付けを行うことによって、被覆量6.5g/m2(付着厚みが約4μm)の皮膜を形成させた本発明の被覆ねじを製造した。この上塗り被覆ねじの耐食性の評価(赤錆)を下記の方法で行った。結果を表2に示す。
赤錆の発生は、亜鉛めっきが犠牲防食により欠落している部分から腐食が発生していることを示しているものと考えられるので、試験500時間後に赤錆の発生したねじの本数を目視にて確認した。
実施例2〜7および参考例1と同様にして亜鉛めっきに皮膜を施したねじの表面に、実施例8と同様にして、上塗り塗料による皮膜を形成して、実施例9〜14および参考例2のねじを製造した。この上塗り被覆ねじの耐食性の評価(赤錆)を下記の方法で行った。結果を表2に示す。
表面処理液の組成を表1に、ねじ部材への塗布量を表1に、それぞれ示すとおりとした他は、実施例1と同様な方法にして、比較例1〜4のねじを製造し、評価した。結果を表1に示す。
比較例1〜4と同様にして亜鉛めっきに皮膜を施したねじの表面に、実施例8と同様にして、上塗り塗料による皮膜を形成して、比較例5〜8のねじを製造し、この上塗り被覆ねじの耐食性の評価(赤錆)を下記の方法で行った。結果を表2に示す。
◎:沈殿物なし、○:ごく僅かに沈殿物あり、△:少し沈殿物が認められる、×:全体が白濁またはゲル化
◎:発生数0/5本、○:発生数1/5本、△:発生数2〜3/5本、×:発生数4〜5/5本
◎:発生数0/5本、○:発生数1/5本、△:発生数2〜3/5本、×:発生数4〜5/5本
Claims (4)
- 亜鉛または亜鉛合金を含む被覆材で被覆された締結部品の表面上に、第一リン酸アルミニウムおよび第一リン酸マグネシウムの少なくとも1種と、ヘキサフルオロチタン酸もしくはその塩と、キレート剤と、水酸化マグネシウム、酸化マグネシウムおよび炭酸マグネシウムから選択される1種以上のマグネシウム化合物とを含み、かつpHが2〜5に調整された表面処理液による皮膜が形成されてなる締結部品。
- pH3〜4に調整された表面処理液による皮膜が形成されてなる請求項1に記載の締結部品。
- キレート剤が、1−ヒドロキシエチリデン−1,1−ジホスホン酸である表面処理液による皮膜が形成されてなる請求項1または2に記載の締結部品。
- アンモニア水溶液によってpH調整された表面処理液による皮膜が形成されてなる請求項1〜3のいずれか1つに記載の締結部品。
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JP2011167773A JP5697562B2 (ja) | 2011-07-29 | 2011-07-29 | 被覆された締結部品 |
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JP2013032555A JP2013032555A (ja) | 2013-02-14 |
JP5697562B2 true JP5697562B2 (ja) | 2015-04-08 |
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JP2011167773A Active JP5697562B2 (ja) | 2011-07-29 | 2011-07-29 | 被覆された締結部品 |
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Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4144721B2 (ja) * | 1999-05-17 | 2008-09-03 | ユケン工業株式会社 | 金属材の防錆用処理液と防錆処理方法 |
JP5526589B2 (ja) * | 2009-04-20 | 2014-06-18 | 新日鐵住金株式会社 | 表面処理鋼板、表面処理鋼板の製造方法、およびその鋼板から得られた筐体 |
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