JPS5623279A - Surface activation treating method of zinc or zinc plated product - Google Patents

Surface activation treating method of zinc or zinc plated product

Info

Publication number
JPS5623279A
JPS5623279A JP9850979A JP9850979A JPS5623279A JP S5623279 A JPS5623279 A JP S5623279A JP 9850979 A JP9850979 A JP 9850979A JP 9850979 A JP9850979 A JP 9850979A JP S5623279 A JPS5623279 A JP S5623279A
Authority
JP
Japan
Prior art keywords
zinc
chemical conversion
film
hydrogen peroxide
soln
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.)
Pending
Application number
JP9850979A
Other languages
Japanese (ja)
Inventor
Minoru Nishihara
Akihiro Yanai
Kunihiro Fukui
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP9850979A priority Critical patent/JPS5623279A/en
Publication of JPS5623279A publication Critical patent/JPS5623279A/en
Pending 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
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/78—Pretreatment of the material to be coated

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)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

PURPOSE:To obtain a product treated by chemical conversion having excellent corrosion resistance and appearance by subjecting the zinc or zinc plated products prior to chemical conversion treatment to surface treatment with an alkaline soln. contg. the specific amount of hydrogen peroxide. CONSTITUTION:Zinc or zinc plated products forms an inert film of oxide on their surfaces and this retards the formation of film at the time of chemical conversion treatment. This retarding effect is eliminated by treating the surface with an alkaline soln. contg. 0.3-10.2g/l hydrogen peroxide. Namely, as shown by the equations, zinc oxide (ZnO) is first peroxidized by the hydrogen peroxide (H2O2) in the soln. so that ZnO is made extremely easy to dissolve in the alkaline soln., whereby the subsequent reaction owing to the coordination of hydroxyl ions is accelerated and quick dissolution is made possible. As a result, the inert film on the product surfaces dissolves with good reactivity over the entire region, and activate the surfaces by assuring good surface shapes; moreover, a superior chemical conversion film is formed.
JP9850979A 1979-07-31 1979-07-31 Surface activation treating method of zinc or zinc plated product Pending JPS5623279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9850979A JPS5623279A (en) 1979-07-31 1979-07-31 Surface activation treating method of zinc or zinc plated product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9850979A JPS5623279A (en) 1979-07-31 1979-07-31 Surface activation treating method of zinc or zinc plated product

Publications (1)

Publication Number Publication Date
JPS5623279A true JPS5623279A (en) 1981-03-05

Family

ID=14221610

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9850979A Pending JPS5623279A (en) 1979-07-31 1979-07-31 Surface activation treating method of zinc or zinc plated product

Country Status (1)

Country Link
JP (1) JPS5623279A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110205619A (en) * 2019-07-11 2019-09-06 河南省科学院能源研究所有限公司 A kind of pre- membrane process of industry galvanizing equipment chemical cleaning

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5281029A (en) * 1975-12-29 1977-07-07 Nippon Paint Co Ltd Alkali degreasing agent
JPS53142934A (en) * 1977-05-19 1978-12-13 Nippon Paint Co Ltd Phosphate film formation on metal surface

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5281029A (en) * 1975-12-29 1977-07-07 Nippon Paint Co Ltd Alkali degreasing agent
JPS53142934A (en) * 1977-05-19 1978-12-13 Nippon Paint Co Ltd Phosphate film formation on metal surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110205619A (en) * 2019-07-11 2019-09-06 河南省科学院能源研究所有限公司 A kind of pre- membrane process of industry galvanizing equipment chemical cleaning

Similar Documents

Publication Publication Date Title
JPS5623279A (en) Surface activation treating method of zinc or zinc plated product
JPS53138937A (en) Chemical treating method for iron phosphate film
JPS5439791A (en) Operation method of reactor
JPS5638477A (en) Formation of cupric oxide coating
JPS5220765A (en) Three-way semi-conductor surface treatment
JPS51122694A (en) Continuous chemical treating process for manufacturing sodium disulfuric peroxide and potassium disulfuric peroxide
JPS552747A (en) Sliding member and its preparation
JPS51135173A (en) Method of treating waste liquor containing acids and metal salts there of
JPS57192295A (en) Surface treated steel sheet of excellent painting property
JPS51146759A (en) Process for treating a solution containing polyvinyl alcohol
JPS51115221A (en) Lead-patenting treatment of copper wire
JPS53145568A (en) Surface treating method
JPS5266811A (en) Bright cooling of steel sheet
JPS53136591A (en) Preparation of adenosine-5'-triphosphoric acid
JPS5565395A (en) Surface treating method of anodic oxide film
JPS5225450A (en) Method of treating sludge
JPS5426060A (en) Method of treating solution containing organic reduced substance such as hydrazine or the like
JPS549164A (en) Method of quickly treating bottom material
JPS559721A (en) Production of processed shiitake mushroom
JPS5217364A (en) Process for decomposing and removing hydrogen peroxide in a colloidal solution of antimony oxide
JPS53110927A (en) Plating method
JPS5426286A (en) Treating method for ion exchange membrane
JPS51124050A (en) Treatment method of waste water containing formaldehyde
JPS529760A (en) Screw with strengthened neck against deformation
JPS57187940A (en) Surface treatment of compound semiconductor