JPS5573880A - Removing method for colored coating formed on surface of mn-plated steel material - Google Patents

Removing method for colored coating formed on surface of mn-plated steel material

Info

Publication number
JPS5573880A
JPS5573880A JP14443778A JP14443778A JPS5573880A JP S5573880 A JPS5573880 A JP S5573880A JP 14443778 A JP14443778 A JP 14443778A JP 14443778 A JP14443778 A JP 14443778A JP S5573880 A JPS5573880 A JP S5573880A
Authority
JP
Japan
Prior art keywords
steel material
soln
plated steel
colored coating
coating formed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14443778A
Other languages
Japanese (ja)
Other versions
JPS5727935B2 (en
Inventor
Satoshi Kado
Saburo Ayusawa
Yasuhiko Mitsuyoshi
Takashi Watanabe
Tadao Azami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP14443778A priority Critical patent/JPS5573880A/en
Publication of JPS5573880A publication Critical patent/JPS5573880A/en
Publication of JPS5727935B2 publication Critical patent/JPS5727935B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/20—Other heavy metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

PURPOSE:To dissolve and remove easily colored coating formed on the surface of a Mn-plated steel material so as to obtain a surface having metallic luster, by immersing the Mn-plated steel material in an aq. soln. of NH3 or NH4 salt. CONSTITUTION:An Mn-plated steel material is immersed in an aq. soln. contg. NH3 or NH4 salt (e.g., CH3COONH4) in concn. from 0.1% to saturation, or the soln. is spread on the steel material. As the result, the colored coating formed on the Mn-plated steel material is removed, in addn., no colored-coating is regenerated after water-washing and drying, consequently a surface excellent in chemical treatment property is obtained. Further addn. of 0.01-30% hydrogen peroxide soln. causes to retard the deterioration of the treating soln. Weakly acidic, or neutral soln., 5-7 in pH, also removes colored coating easily.
JP14443778A 1978-11-22 1978-11-22 Removing method for colored coating formed on surface of mn-plated steel material Granted JPS5573880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14443778A JPS5573880A (en) 1978-11-22 1978-11-22 Removing method for colored coating formed on surface of mn-plated steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14443778A JPS5573880A (en) 1978-11-22 1978-11-22 Removing method for colored coating formed on surface of mn-plated steel material

Publications (2)

Publication Number Publication Date
JPS5573880A true JPS5573880A (en) 1980-06-03
JPS5727935B2 JPS5727935B2 (en) 1982-06-14

Family

ID=15362179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14443778A Granted JPS5573880A (en) 1978-11-22 1978-11-22 Removing method for colored coating formed on surface of mn-plated steel material

Country Status (1)

Country Link
JP (1) JPS5573880A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102586792A (en) * 2012-03-09 2012-07-18 株洲硬质合金集团有限公司 Method and device for treating surface oxide of tungsten material at normal temperature

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102586792A (en) * 2012-03-09 2012-07-18 株洲硬质合金集团有限公司 Method and device for treating surface oxide of tungsten material at normal temperature

Also Published As

Publication number Publication date
JPS5727935B2 (en) 1982-06-14

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