KR880014141A - 크롬함유 스텐레스강의 전해산-세척(pickling)방법 - Google Patents

크롬함유 스텐레스강의 전해산-세척(pickling)방법 Download PDF

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Publication number
KR880014141A
KR880014141A KR1019880004602A KR880004602A KR880014141A KR 880014141 A KR880014141 A KR 880014141A KR 1019880004602 A KR1019880004602 A KR 1019880004602A KR 880004602 A KR880004602 A KR 880004602A KR 880014141 A KR880014141 A KR 880014141A
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KR
South Korea
Prior art keywords
chromium
stainless steel
containing stainless
acid
pickling method
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KR1019880004602A
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English (en)
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KR960001599B1 (ko
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마레쉬 제랄트
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헤르베르트 그라벤호퍼,·에리이히 파샬페크
마쉬넨파브릭 안트릿츠 악티엔게젤샤프트
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Application filed by 헤르베르트 그라벤호퍼,·에리이히 파샬페크, 마쉬넨파브릭 안트릿츠 악티엔게젤샤프트 filed Critical 헤르베르트 그라벤호퍼,·에리이히 파샬페크
Publication of KR880014141A publication Critical patent/KR880014141A/ko
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Publication of KR960001599B1 publication Critical patent/KR960001599B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • C25F1/02—Pickling; Descaling
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • C25F1/02—Pickling; Descaling
    • C25F1/04—Pickling; Descaling in solution
    • C25F1/06—Iron or steel

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Treatment Of Sludge (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

내용 없음

Description

크롬함유 스텐레스강의 전해산-세척(pickling)방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (7)

  1. 크롬함유 스텐레스강의 전해 산세척을 위해 초기에 Na2SO4수용액에서 산세척한 다음, 선택적으로 전류의 흐름없이 산, 바람직하게는 혼합상에서 산세척하는 방법으로서, CrO4 2-가 없는 산세척 용액이 얻어지도록 하는 용액의 pH값과 레독스 포텐셜에 따라 조정된 양의 산과 환원제를 Na2SO4수용액에 첨가함을 특징으로 하는 크롬함유 스텐레스강의 전해 산세척 방법.
  2. 제 1 항에 있어서, 용액의 pH값이 H2SO4의 첨가로서 3미만으로 조종됨을 특징으로 하는 크롬함유 스텐레스강의 전해 산세척 방법.
  3. 제 2 항에 있어서, pH값이 1.5-2.5으로 조종됨을 특징으로 하는 크롬함유 스텐레스강의 전해 산세척 방법.
  4. 제 1 항에 있어서, 칼로멜 전극에 대해 측정된 용액의 레독스 포텐셜이 산과 환원제의 첨가에 의해 50-100mV감소함을 특징으로 하는 크롬함유 스텐레스강의 전해 산세척 방법.
  5. 제 1 항에 있어서, 환원제로서 NxHySzOv(x=0-2, y=0-2, z=1-6, v=2-6)군에서 선정된 물질이 이용되며, 반응에서 Na2SO4가 함께 생성됨을 특징으로 하는 크롬함유 스텐레스강의 전해 산세척 방법.
  6. 제 1 항에 있어서, Na2SO4농도가 100-250g/l로 조정됨을 특징으로 하는 크롬함유 스텐레스강의 전해 산세척 방법.
  7. 제 6 항에 있어서,상기 농도가 170-200g/l로 조정됨을 특징으로 하는 크롬함유 스텐레스강의 전해 산세척 방법
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880004602A 1987-05-07 1988-04-22 크롬함유 스텐레스강의 전해 산세척(pickling) 방법 KR960001599B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1147/87 1987-05-07
AT0114787A AT387406B (de) 1987-05-07 1987-05-07 Verfahren zum elektrolytischen beizen von chromhaeltigem edelstahl

Publications (2)

Publication Number Publication Date
KR880014141A true KR880014141A (ko) 1988-12-23
KR960001599B1 KR960001599B1 (ko) 1996-02-02

Family

ID=3507621

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880004602A KR960001599B1 (ko) 1987-05-07 1988-04-22 크롬함유 스텐레스강의 전해 산세척(pickling) 방법

Country Status (8)

Country Link
US (1) US4851092A (ko)
EP (1) EP0291493B1 (ko)
JP (1) JP2649380B2 (ko)
KR (1) KR960001599B1 (ko)
AT (1) AT387406B (ko)
DE (1) DE3851086D1 (ko)
ES (1) ES2058340T3 (ko)
FI (1) FI86649C (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391486B (de) * 1988-09-14 1990-10-10 Andritz Ag Maschf Verfahren zum elektrolytischen beizen von edelstahlband
KR920003063B1 (ko) * 1990-02-28 1992-04-13 재단법인 한국화학연구소 신규한2-(2-이미다졸린-2-일)-3-(아미노옥소아세틸)-피리딘유도체와그염
AT395601B (de) * 1990-07-27 1993-02-25 Andritz Ag Maschf Verfahren zum beizen von edelstahl
JPH0762279B2 (ja) * 1991-08-02 1995-07-05 日本冶金工業株式会社 ステンレス鋼の中性塩電解脱スケール方法
TW401471B (en) * 1994-07-28 2000-08-11 Hitachi Ltd Treatment of neutral salt electrolyte, and treating device therefor, descaling of stanless steel and device therefor
AT404030B (de) * 1995-02-15 1998-07-27 Andritz Patentverwaltung Verfahren zur beize von materialien aus stahl, insbesondere edelstahl
AT401183B (de) * 1995-02-15 1996-07-25 Andritz Patentverwaltung Verfahren zur regeneration von elektrolyten, insbesondere na2so4 aus abbeizen von edelstahl, insbesondere edelstahlbändern
US5830291C1 (en) * 1996-04-19 2001-05-22 J & L Specialty Steel Inc Method for producing bright stainless steel
US6096183A (en) * 1997-12-05 2000-08-01 Ak Steel Corporation Method of reducing defects caused by conductor roll surface anomalies using high volume bottom sprays
AT406486B (de) * 1998-12-22 2000-05-25 Andritz Patentverwaltung Verfahren zum beizen von edelstahl
AT408451B (de) 1999-11-18 2001-12-27 Andritz Ag Maschf Verfahren zur herstellung von edelstahlbändern mit verbesserten oberflächeneigenschaften

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025225A (en) * 1959-10-05 1962-03-13 Boeing Co Electrolytic acid descaling of metals
AT252685B (de) * 1964-12-22 1967-03-10 Ruthner Ind Planungs Ag Verfahren zum Beizen hochlegierter Stähle und Sonderlegierungen
US3715308A (en) * 1971-06-04 1973-02-06 Oxy Metal Finishing Corp Apparatus and process for treating toxic waste materials
JPS495866A (ko) * 1972-02-08 1974-01-19
JPS5047827A (ko) * 1973-08-31 1975-04-28
JPS5216863A (en) * 1975-07-28 1977-02-08 Onomichi Kumika Kogyo Kk Treating agent and method for wastewater containing hexa-chromium ions
JPS5256755A (en) * 1975-11-06 1977-05-10 Tokico Ltd Process for treating aqueous solution containing chromate ions which i ncludes insoluble heavy metal hydroxide
JPS5321078A (en) * 1976-08-11 1978-02-27 Hitachi Ltd Treating method for waste liquid for electrolytic processing
JPS5710200A (en) * 1980-06-20 1982-01-19 Matsushita Electric Ind Co Ltd Voice synthesizer
US4363709A (en) * 1981-02-27 1982-12-14 Allegheny Ludlum Steel Corporation High current density, acid-free electrolytic descaling process
JPS5956600A (ja) * 1982-09-27 1984-04-02 Sumitomo Metal Ind Ltd 片面電気メツキ鋼板の製造方法
US4415415A (en) * 1982-11-24 1983-11-15 Allegheny Ludlum Steel Corporation Method of controlling oxide scale formation and descaling thereof from metal articles
JPS60122092A (ja) * 1983-12-05 1985-06-29 Suirei:Kk ６価クロム含有排水の処理装置
JPS60234998A (ja) * 1984-05-02 1985-11-21 Chem Yamamoto:Kk 金属材表面の除染清浄化方法

Also Published As

Publication number Publication date
US4851092A (en) 1989-07-25
ATA114787A (de) 1988-06-15
DE3851086D1 (de) 1994-09-22
EP0291493A1 (de) 1988-11-17
ES2058340T3 (es) 1994-11-01
JPS63286600A (ja) 1988-11-24
FI882098A (fi) 1988-11-08
EP0291493B1 (de) 1994-08-17
FI882098A0 (fi) 1988-05-05
FI86649B (fi) 1992-06-15
KR960001599B1 (ko) 1996-02-02
JP2649380B2 (ja) 1997-09-03
FI86649C (fi) 1992-09-25
AT387406B (de) 1989-01-25

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