JP2007332416A5 - - Google Patents
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- JP2007332416A5 JP2007332416A5 JP2006164602A JP2006164602A JP2007332416A5 JP 2007332416 A5 JP2007332416 A5 JP 2007332416A5 JP 2006164602 A JP2006164602 A JP 2006164602A JP 2006164602 A JP2006164602 A JP 2006164602A JP 2007332416 A5 JP2007332416 A5 JP 2007332416A5
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- acid
- stainless steel
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- electrolytic
- propanol
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- MUBZPKHOEPUJKR-UHFFFAOYSA-N oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 9
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 claims description 8
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- AEMRFAOFKBGASW-UHFFFAOYSA-N glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 6
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 claims description 5
- CBTVGIZVANVGBH-UHFFFAOYSA-N Aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 5
- FEWJPZIEWOKRBE-XIXRPRMCSA-N Mesotartaric acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-XIXRPRMCSA-N 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 235000015165 citric acid Nutrition 0.000 claims description 4
- 239000000174 gluconic acid Substances 0.000 claims description 4
- 235000012208 gluconic acid Nutrition 0.000 claims description 4
- 229950006191 gluconic acid Drugs 0.000 claims description 4
- 235000006408 oxalic acid Nutrition 0.000 claims description 4
- 235000011007 phosphoric acid Nutrition 0.000 claims description 4
- 239000001384 succinic acid Substances 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- 235000002906 tartaric acid Nutrition 0.000 claims description 4
- 229960001367 tartaric acid Drugs 0.000 claims description 4
- BJEPYKJPYRNKOW-UHFFFAOYSA-N Malic acid Chemical compound OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 3
- 235000011054 acetic acid Nutrition 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 claims description 3
- 239000001630 malic acid Substances 0.000 claims description 3
- 235000011090 malic acid Nutrition 0.000 claims description 3
- 229940099690 malic acid Drugs 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N HF Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 3
- FQENQNTWSFEDLI-UHFFFAOYSA-J Tetrasodium pyrophosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 230000001590 oxidative Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 229940048086 sodium pyrophosphate Drugs 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K Iron(III) chloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 235000011430 Malus pumila Nutrition 0.000 description 1
- 235000015103 Malus silvestris Nutrition 0.000 description 1
- CUXQLKLUPGTTKL-UHFFFAOYSA-M Microcosmic salt Chemical compound [NH4+].[Na+].OP([O-])([O-])=O CUXQLKLUPGTTKL-UHFFFAOYSA-M 0.000 description 1
- 229940048084 Pyrophosphate Drugs 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J Pyrophosphate Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N Pyrophosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 230000003449 preventive Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229940005657 pyrophosphoric acid Drugs 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Description
この発明は、ステンレス鋼の溶接後の焼け取り等のために行われるステンレス鋼表面に対する電解研磨で使用する電解液の組成に関するものである。 The present invention relates to the composition of an electrolytic solution used in electrolytic polishing of a stainless steel surface performed for burning off after welding of stainless steel.
金属加工法として金属を電解液と接触させながら直流又は交流電圧を印加して加工する電解加工が広く用いられており、ステンレス鋼においても、例えばステンレス鋼の溶接後の焼け取り部分を表面研磨する方法として電解加工による電解研磨法が行なわれている。 As a metal processing method, electrolytic processing is widely used in which a metal is processed by applying a direct current or an alternating voltage while being in contact with an electrolytic solution. In stainless steel, for example, the burnt portion after welding of stainless steel is subjected to surface polishing. As a method, an electrolytic polishing method by electrolytic processing is performed.
また、金属と電解液を接触させる方法も、電解液に被研磨材となる金属（ワーク）を浸漬させる浸漬式や、電極とワークの間に天然または合成の不織布を置いた簡易式がある。 In addition, there are a method of bringing a metal into contact with an electrolytic solution, a dipping method in which a metal (workpiece) to be polished is immersed in the electrolytic solution, and a simple method in which a natural or synthetic nonwoven fabric is placed between the electrode and the workpiece.
現在まで使用されてきた電解液としては、交流、直流、交直重畳にかかわらず、また、浸漬式、簡易式等の方式を問わず、硫酸、燐酸、クエン酸、酒石酸、シュウ酸、リンゴ酸、酢酸、グルコン酸、グリコール酸、コハク酸、フッ化水素酸もしくはそれらのアンモニウム、カリウム、ナトリウム塩の一種もしくは二種以上の塩を配合したものを電解液として利用してきた（例えば、特許文献１、特許文献２参照）。
しかし、上記従来の電解液を用いたものでは電解後、特にオーステナイト系ステンレス鋼では孔食などの腐食がおきる危険性があった。 However, in the case of using the above-described conventional electrolyte, there is a risk that corrosion such as pitting corrosion occurs after electrolysis, particularly in austenitic stainless steel.
また、特許文献１にあるように、非酸化性の酸のナトリウム塩、アンモニウム塩、カリウム塩に水溶性フッ化物を添加して表面にフッ化不動態膜を形成させるような方法が考案されているが、処理後の美観の問題やフェライト系ステンレス鋼に使用して塩水噴霧試験を行った場合に全面腐食を増大させる危険性があった。 Further, as disclosed in Patent Document 1, a method has been devised in which a water-soluble fluoride is added to a sodium salt, ammonium salt, or potassium salt of a non-oxidizing acid to form a fluorinated passive film on the surface. However, there is a risk of increasing the overall corrosion when the salt spray test is performed using ferritic stainless steel and the problem of aesthetics after the treatment.
そこで、上記のような課題を解決し、どのような鋼種のステンレスでも上記の課題をもっと効果的に解決できる様な電解液を得るべく種々の材料を検討することによって本発明に至ったものである。 Therefore, the present invention has been accomplished by solving various problems in order to obtain an electrolytic solution that can solve the above problems more effectively with any steel type. is there.
上記の課題を解決するため、請求項１の発明は、１重量％以上の燐酸、クエン酸、酒石酸、シュウ酸、リンゴ酸、酢酸、グルコン酸、グリコール酸、コハク酸などステンレス鋼に非酸化性に働く酸、硫酸およびフッ酸からなる群から選ばれた１種または２種以上の水溶液に、１重量％以上の２−アミノ−２−メチル−１−プロパノールを添加したものを主成分とするステンレス鋼の電解研磨法に用いる電解液である。 In order to solve the above problems, the invention of claim 1 is non-oxidizing to stainless steel such as 1% by weight or more of phosphoric acid, citric acid, tartaric acid, oxalic acid, malic acid, acetic acid, gluconic acid, glycolic acid and succinic acid. Mainly composed of one or two or more aqueous solutions selected from the group consisting of acid, sulfuric acid, and hydrofluoric acid, and 1 wt% or more of 2-amino-2-methyl-1-propanol It is an electrolyte used for the electrolytic polishing method of stainless steel.
この発明の電解液は、ステンレス鋼の電解研磨において交流及び直流及び交直重畳で使用できると共に、どのような鋼種のステンレスでも耐食性と処理後の美観を向上させることができ経済的である。 The electrolytic solution of the present invention can be used by alternating current, direct current, and AC / DC superposition in electrolytic polishing of stainless steel, and is economical because it can improve the corrosion resistance and the aesthetic appearance after processing in any stainless steel.
電極の先の不織布に、（１）１０重量％のピロリン酸ナトリウム水溶液、（２）１０重量％のピロリン酸に８重量％の２−アミノ−２−メチル−１−プロパノールを添加した水溶液を、それぞれ電解液として染み込ませ、オーステナイト系ステンレス鋼であるＳＵＳ３０４（３０ｍｍ×９０ｍｍ×１．６ｍｍ）に押し当て２０Ｖの交流電流を印加した後、表面の状態を比較してみた。 To the non-woven fabric at the tip of the electrode, (1) an aqueous solution of 10% by weight sodium pyrophosphate, (2) an aqueous solution obtained by adding 8% by weight of 2-amino-2-methyl-1-propanol to 10% by weight of pyrophosphoric acid, Each was soaked as an electrolytic solution, pressed against SUS304 (30 mm × 90 mm × 1.6 mm), which is an austenitic stainless steel, and an alternating current of 20 V was applied, and then the surface states were compared.
尚、表面状態の比較後、オーステナイト系ステンレスであるＳＵＳ３０４（３０ｍｍ×９０ｍｍ×１．６ｍｍ）の試験片は６重量％の塩化第二鉄水溶液に浸漬し２４時間後の重量減を計測した。 In addition, after the comparison of the surface state, a test piece of SUS304 (30 mm × 90 mm × 1.6 mm), which is an austenitic stainless steel, was immersed in a 6% by weight ferric chloride aqueous solution, and the weight loss after 24 hours was measured.
（１）１０重量％のピロリン酸ナトリウム水溶液の試験片の減少率は、２．１重量％であったが、（２）１０重量％のピロリン酸に２−アミノ−２−メチル−１−プロパノールを添加した水溶液を電解液として処理した試験片では僅か１．５％にすぎなかった。 (1) The decrease rate of the test piece of 10% by weight sodium pyrophosphate aqueous solution was 2.1% by weight, but (2) 2-amino-2-methyl-1-propanol was added to 10% by weight pyrophosphate. It was only 1.5% in the test piece which processed the aqueous solution which added A as an electrolyte solution.
また、２−アミノ−２−メチル−１−プロパノールの量は多くするほど好結果がでたので、請求項１にあるように、１重量％以上の燐酸、クエン酸、酒石酸、シュウ酸、リンゴ酸、酢酸、グルコン酸、グリコール酸、コハク酸などステンレス鋼に非酸化性に働く酸、硫酸およびフッ酸からなる群から選ばれた１種もしくは２種以上の水溶液に、１重量％以上の２−アミノ−２−メチル−１−プロパノールを添加すれば、耐孔食性が飛躍的に向上する事が分かった。また、フェライト系ステンレス鋼に対する塩水噴霧試験においても同様の防錆作用がある事がわかった。 Further, as the amount of 2-amino-2-methyl-1-propanol was increased, good results were obtained. Therefore, as described in claim 1, 1% by weight or more of phosphoric acid, citric acid, tartaric acid, oxalic acid, apple 1% or more of 2% by weight in one or more aqueous solutions selected from the group consisting of acids, acetic acid, gluconic acid, glycolic acid, succinic acid, etc. It has been found that the addition of -amino-2-methyl-1-propanol dramatically improves the pitting corrosion resistance. In addition, it was found that the same rust preventive action was also obtained in a salt spray test on ferritic stainless steel.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006164602A JP2007332416A (en) | 2006-06-14 | 2006-06-14 | Electrolytic solution for use in electropolishing process for stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006164602A JP2007332416A (en) | 2006-06-14 | 2006-06-14 | Electrolytic solution for use in electropolishing process for stainless steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007332416A JP2007332416A (en) | 2007-12-27 |
| JP2007332416A5 true JP2007332416A5 (en) | 2009-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006164602A Pending JP2007332416A (en) | 2006-06-14 | 2006-06-14 | Electrolytic solution for use in electropolishing process for stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2007332416A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409390B (en) * | 2011-12-08 | 2015-02-04 | 北京七星华创电子股份有限公司 | Soft magnetic stainless steel electrochemical polishing solution and method |
| JP5897406B2 (en) * | 2012-05-28 | 2016-03-30 | 株式会社石飛製作所 | Electrolytic solution for electropolishing |
| JP5914265B2 (en) * | 2012-08-31 | 2016-05-11 | 株式会社タセト | Electrolyte |
| JP7177426B2 (en) * | 2017-12-28 | 2022-11-24 | 株式会社日本科学エンジニアリング | Electropolishing liquid for stainless steel |
| JP7177425B2 (en) * | 2017-12-28 | 2022-11-24 | 株式会社日本科学エンジニアリング | Electropolishing liquid for stainless steel |
| CN108118386A (en) * | 2017-12-29 | 2018-06-05 | 重庆全茂合渝科技有限公司 | A kind of motorcycle fork axis electrolytic polishing process |
| CN114152638A (en) * | 2021-11-29 | 2022-03-08 | 宁波江丰电子材料股份有限公司 | Sample preparation method for MoNb target EBSD detection |
-
2006
- 2006-06-14 JP JP2006164602A patent/JP2007332416A/en active Pending
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