ES416267A1 - Procedure for the pre-treatment of surfaces of steel strips before the application of galvanic coatings. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the pre-treatment of surfaces of steel strips before the application of galvanic coatings. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES416267A1
ES416267A1 ES416267A ES416267A ES416267A1 ES 416267 A1 ES416267 A1 ES 416267A1 ES 416267 A ES416267 A ES 416267A ES 416267 A ES416267 A ES 416267A ES 416267 A1 ES416267 A1 ES 416267A1
Authority
ES
Spain
Prior art keywords
translation
procedure
treatment
machine
legally binding
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
ES416267A
Other languages
Spanish (es)
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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 Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of ES416267A1 publication Critical patent/ES416267A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
    • 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

Landscapes

  • 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)

Abstract

Procedure for the pre-treatment of steel strip surfaces before the application of galvanic coatings, by means of a possible preliminary cleaning, an electrolytic cleaning in alkaline solutions and an acid stripping, characterized by carrying out the electrolytic cleaning at temperatures of 50 to 90ºC, with a current density of 3 to 15 A/dm2 and with a 1 to 10% solution of a cleaner that contains free caustic alkali and 2 to 40% alkanolamine with at least 3 hydroxy groups and that has a pH greater than 13, 5 and because the acid stripping is carried out with solutions containing hydrochloric acid or, preferably, sulfuric acid or nitric acid. (Machine-translation by Google Translate, not legally binding)
ES416267A 1972-06-26 1973-06-25 Procedure for the pre-treatment of surfaces of steel strips before the application of galvanic coatings. (Machine-translation by Google Translate, not legally binding) Expired ES416267A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722231159 DE2231159A1 (en) 1972-06-26 1972-06-26 PROCESS FOR PRE-TREATMENT OF STEEL STRIP SURFACES BEFORE APPLYING GALVANIC COATINGS

Publications (1)

Publication Number Publication Date
ES416267A1 true ES416267A1 (en) 1976-02-16

Family

ID=5848789

Family Applications (1)

Application Number Title Priority Date Filing Date
ES416267A Expired ES416267A1 (en) 1972-06-26 1973-06-25 Procedure for the pre-treatment of surfaces of steel strips before the application of galvanic coatings. (Machine-translation by Google Translate, not legally binding)

Country Status (7)

Country Link
BE (1) BE801382A (en)
DE (1) DE2231159A1 (en)
ES (1) ES416267A1 (en)
FR (1) FR2190945B1 (en)
GB (1) GB1423064A (en)
IT (1) IT989386B (en)
NL (1) NL7307484A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO139355C (en) * 1977-02-24 1979-02-21 Norsk Hydro As PROCEDURE FOR MANUFACTURE OF ACTIVE CATHODES FOR CHLORAL EQUIPMENT AND WATER DECOMPOSITION CELLS
DE19853692A1 (en) * 1998-11-20 2000-05-25 Continental Teves Ag & Co Ohg Zinc-nickel layer application onto a ferrous metal workpiece, especially an alloy cast iron brake saddle, involves workpiece pretreatment adapted to a workpiece parameter, especially surface quality

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915444A (en) * 1955-12-09 1959-12-01 Enthone Process for cleaning and plating ferrous metals
DE1546134C3 (en) * 1964-12-16 1975-08-21 Dr. Hesse & Cie, 4811 Heepen Cyanide-free cleaning bath for electrolytic degreasing, rust removal and descaling of iron and iron alloys

Also Published As

Publication number Publication date
FR2190945A1 (en) 1974-02-01
GB1423064A (en) 1976-01-28
BE801382A (en) 1973-12-26
IT989386B (en) 1975-05-20
DE2231159A1 (en) 1974-01-17
NL7307484A (en) 1973-12-28
FR2190945B1 (en) 1976-04-30

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