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GB1308433A - Method for cleaning metal surface - Google Patents

Method for cleaning metal surface

Info

Publication number
GB1308433A
GB1308433A GB175071A GB175071A GB1308433A GB 1308433 A GB1308433 A GB 1308433A GB 175071 A GB175071 A GB 175071A GB 175071 A GB175071 A GB 175071A GB 1308433 A GB1308433 A GB 1308433A
Authority
GB
United Kingdom
Prior art keywords
cleaning
copper
acid
alkali metal
formaldehyde
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.)
Expired
Application number
GB175071A
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.)
Artience Co Ltd
Original Assignee
Toyo Ink Mfg Co Ltd
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 Toyo Ink Mfg Co Ltd filed Critical Toyo Ink Mfg Co Ltd
Publication of GB1308433A publication Critical patent/GB1308433A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Printed Wiring (AREA)

Abstract

1308433 Cleaning metal surfaces TOYO INK MFG CO Ltd 13 Jan 1971 [16 Jan 1970] 1750/71 Headings C7B and C7E Metal surfaces are cleaned by contacting them with the aqueous solution of alkali metal salts obtained by an alkali hydrolysis of an aqueous solution of formaldehyde cyanohydrin. The said alkali metal salts are those of glycolic acid, glycine, imino-diacetic acid and nitrilo- triacetic acid. Other components of the cleaning composition may include sodium hydroxide, sodium phosphate, diethylenetriamine-pentaacetic acid, and hexamethylene tetramine. The formaldehyde cyanohydrin may be prepared by reaction of formaldehyde with an alkali metal cyanide. The cleaning may be carried out by immersing the metal in a bath of the cleaning solution and applying an electric potential between it and another electrode immersed in the bath. Examples describe the cleaning of brass, steel and copper prior to electro-plating with copper and silver, zinc, and copper and nickel respectively.
GB175071A 1970-01-16 1971-01-13 Method for cleaning metal surface Expired GB1308433A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP390370 1970-01-16

Publications (1)

Publication Number Publication Date
GB1308433A true GB1308433A (en) 1973-02-21

Family

ID=11570138

Family Applications (1)

Application Number Title Priority Date Filing Date
GB175071A Expired GB1308433A (en) 1970-01-16 1971-01-13 Method for cleaning metal surface

Country Status (1)

Country Link
GB (1) GB1308433A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189261A (en) * 1986-04-11 1987-10-21 Pyrene Chemical Services Ltd Processes and compositions for abrasive blast cleaning
US4746453A (en) * 1986-11-07 1988-05-24 China Steel Corporation Cleaning composition for electrocleaning cold-rolled steel
ES2518790A1 (en) * 2014-09-08 2014-11-05 Universidad De Granada Procedure and device for cleaning metal surfaces using a direct current

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189261A (en) * 1986-04-11 1987-10-21 Pyrene Chemical Services Ltd Processes and compositions for abrasive blast cleaning
GB2189261B (en) * 1986-04-11 1990-08-01 Pyrene Chemical Services Ltd Processes and compositions for abrasive blast cleaning
US4746453A (en) * 1986-11-07 1988-05-24 China Steel Corporation Cleaning composition for electrocleaning cold-rolled steel
ES2518790A1 (en) * 2014-09-08 2014-11-05 Universidad De Granada Procedure and device for cleaning metal surfaces using a direct current

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees