JP6654776B2 - ステンレススチール配管と構造物の溶接部位のスケールおよび錆をとり除くための酸洗いおよび不動態被膜処理剤の製造方法 - Google Patents
ステンレススチール配管と構造物の溶接部位のスケールおよび錆をとり除くための酸洗いおよび不動態被膜処理剤の製造方法 Download PDFInfo
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- 238000002161 passivation Methods 0.000 title claims description 32
- 229910001220 stainless steel Inorganic materials 0.000 title claims description 27
- 239000010935 stainless steel Substances 0.000 title claims description 26
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims description 25
- 238000005554 pickling Methods 0.000 title claims description 19
- 239000011248 coating agent Substances 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 79
- 230000003472 neutralizing effect Effects 0.000 claims description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 22
- 229910052760 oxygen Inorganic materials 0.000 claims description 22
- 239000001301 oxygen Substances 0.000 claims description 22
- 230000033116 oxidation-reduction process Effects 0.000 claims description 20
- 239000007864 aqueous solution Substances 0.000 claims description 17
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims description 14
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 14
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 14
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 14
- 239000000176 sodium gluconate Substances 0.000 claims description 14
- 235000012207 sodium gluconate Nutrition 0.000 claims description 14
- 229940005574 sodium gluconate Drugs 0.000 claims description 14
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 14
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 13
- 239000001569 carbon dioxide Substances 0.000 claims description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 description 36
- 230000007797 corrosion Effects 0.000 description 36
- 239000000126 substance Substances 0.000 description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 17
- 230000000704 physical effect Effects 0.000 description 17
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 16
- 239000011651 chromium Substances 0.000 description 16
- 150000003839 salts Chemical class 0.000 description 16
- 239000007921 spray Substances 0.000 description 16
- 238000005406 washing Methods 0.000 description 15
- 238000002845 discoloration Methods 0.000 description 13
- 239000004593 Epoxy Substances 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 238000005530 etching Methods 0.000 description 7
- 239000000383 hazardous chemical Substances 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- RGHNJXZEOKUKBD-SQOUGZDYSA-M D-gluconate Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O RGHNJXZEOKUKBD-SQOUGZDYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003929 acidic solution Substances 0.000 description 3
- 229940050410 gluconate Drugs 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- PMNLUUOXGOOLSP-UHFFFAOYSA-N 2-mercaptopropanoic acid Chemical compound CC(S)C(O)=O PMNLUUOXGOOLSP-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229940045641 monobasic sodium phosphate Drugs 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
リン酸20重量部、クエン酸5重量部、グルコン酸ナトリウム5重量部、水70重量部を混合して製造した酸性剤を製造して物性を確認した結果pH1.2であり酸化還元電位は120mVであり、この酸性剤をエポキシで塗装された部位に塗布した結果、1時間後に変色が発生し、1週後には変形が発生される。
酒石酸5重量部、チオ乳酸5重量部、クエン酸10重量部、水60重量部である酸性溶液に水酸化カリウム20重量部を反応させて中性剤を製造する。
Claims (2)
- 水にリン酸水素二ナトリウム2〜10重量部とグルコン酸ナトリウム1〜5重量部と、トリポリリン酸ナトリウム0.5〜3重量部を含むようにして塩基性水溶液を得て、
前記の塩基性水溶液にリン酸二水素ナトリウム1.1〜4.5重量部を反応させてpH6.9〜7.1で中性化した後、
二酸化炭素が除去された空気を曝気して溶存酸素量を増加させて酸化還元電位を170mV〜310mVにしてステンレススチール配管と構造物の溶接部位のスケールおよび錆をとり除くための酸洗いおよび不動態被膜処理剤の製造方法。 - 前記二酸化炭素の除去された曝気は、中性剤100gに二酸化炭素が除去された空気を100ml/minの流速で2〜10時間を曝気するようにする請求項1に記載のステンレススチール配管と構造物の溶接部位のスケールおよび錆をとり除くための酸洗いおよび不動態被膜処理剤の製造方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
WOPCT/KR2017/005708 | 2017-05-31 | ||
PCT/KR2017/005708 WO2017209524A1 (ko) | 2016-06-01 | 2017-05-31 | 스테인레스 스틸 배관과 구조물의 용접부위 스케일과 녹을 제거하기 위한 산세와 부동태 피막 처리제 |
WOPCT/KR2017/012787 | 2017-11-13 | ||
PCT/KR2017/012787 WO2018221797A1 (ko) | 2016-06-01 | 2017-11-13 | 스테인레스 스틸 배관과 구조물의 용접부위 스케일과 녹을 제거하기 위한 산세와 부동태 피막 처리제 |
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JP2018204107A JP2018204107A (ja) | 2018-12-27 |
JP6654776B2 true JP6654776B2 (ja) | 2020-02-26 |
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CN (1) | CN109328245A (ja) |
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CN112376040B (zh) * | 2020-11-25 | 2022-10-11 | 安徽军明机械制造有限公司 | 一种水泵泵壳用不锈钢材料处理工艺 |
Family Cites Families (9)
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JPS5565368A (en) * | 1978-11-07 | 1980-05-16 | Toshiba Corp | Strengthening method for making passive state of stainless steel |
US4521332A (en) * | 1981-03-23 | 1985-06-04 | Pennwalt Corporation | Highly alkaline cleaning dispersion |
FR2587369B1 (fr) * | 1985-09-19 | 1993-01-29 | Ugine Gueugnon Sa | Procede de decapage acide de produits en acier inoxydable |
US4931102A (en) * | 1988-09-01 | 1990-06-05 | Eaton Corporation | Metal cleaning process |
JP2004143530A (ja) * | 2002-10-24 | 2004-05-20 | Ekusebun:Kk | 金属表面洗浄剤 |
JP5604244B2 (ja) * | 2010-09-24 | 2014-10-08 | 株式会社ブリヂストン | ゴム−金属複合体の製造方法、ゴム−金属複合体、タイヤ、免震用のゴム支承体、工業用ベルト、及びクローラー |
CN103103549A (zh) * | 2012-11-13 | 2013-05-15 | 三达奥克化学股份有限公司 | 舰艇专用铸铁·碳钢·不锈钢·铜·铝组合部件压力喷洗剂及制备方法 |
KR101718478B1 (ko) * | 2016-06-01 | 2017-03-21 | (주)천우테크 | 스테인레스 스틸 배관과 구조물의 용접부위 스케일과 녹을 제거하기 위한 산세와 부동태 피막 처리제 |
CN108315748B (zh) * | 2018-02-09 | 2020-01-07 | 东莞华拓研磨材料有限公司 | 一种金属清洗剂及其制备方法 |
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