JPS5723066A - Preparation of box annealed steel plate with excellent phosphate treating property and corrosion resistance after painting - Google Patents

Preparation of box annealed steel plate with excellent phosphate treating property and corrosion resistance after painting

Info

Publication number
JPS5723066A
JPS5723066A JP9688980A JP9688980A JPS5723066A JP S5723066 A JPS5723066 A JP S5723066A JP 9688980 A JP9688980 A JP 9688980A JP 9688980 A JP9688980 A JP 9688980A JP S5723066 A JPS5723066 A JP S5723066A
Authority
JP
Japan
Prior art keywords
steel plate
painting
corrosion resistance
preparation
divalent
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
JP9688980A
Other languages
Japanese (ja)
Inventor
Yukinobu Higuchi
Minoru Kamata
Masami Osawa
Susumu Okamoto
Wataru Hotta
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 JP9688980A priority Critical patent/JPS5723066A/en
Publication of JPS5723066A publication Critical patent/JPS5723066A/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
    • 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)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

PURPOSE:To impart phosphate treating property and corrosion resistance after painting by a method wherein an oxidized film on a surface of a steel plate formed by decovering said steel plate at a high temp. of from an annealing temp. to 200 deg.C after box annealing is removed by pickling and rapidly cooled and, thereafter a suspension containing an insoluble phosphate of a divalent or a trivalent metal is blown thereon under pressure. CONSTITUTION:A steel plate is decovered at a high temp. of up to 200 deg.C after box annealing and cooled by a cooling medium to form an oxidized film on a surface thereof. The resultant oxidized film is removed by pickling by using an immersing or a spraying means and washed. Subsequently, a suspension containing an insoluble phosphate of a divalent or a trivalent metal is blown thereon under pressure to condition the surface thereof. As a divalent metal salt, Zn3(PO4)2, Ca(PO4)3 are used and, as a trivalent metal salt, AlPO4, FePO4 are used.
JP9688980A 1980-07-17 1980-07-17 Preparation of box annealed steel plate with excellent phosphate treating property and corrosion resistance after painting Pending JPS5723066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9688980A JPS5723066A (en) 1980-07-17 1980-07-17 Preparation of box annealed steel plate with excellent phosphate treating property and corrosion resistance after painting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9688980A JPS5723066A (en) 1980-07-17 1980-07-17 Preparation of box annealed steel plate with excellent phosphate treating property and corrosion resistance after painting

Publications (1)

Publication Number Publication Date
JPS5723066A true JPS5723066A (en) 1982-02-06

Family

ID=14176946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9688980A Pending JPS5723066A (en) 1980-07-17 1980-07-17 Preparation of box annealed steel plate with excellent phosphate treating property and corrosion resistance after painting

Country Status (1)

Country Link
JP (1) JPS5723066A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998039498A1 (en) 1997-03-07 1998-09-11 Henkel Corporation Conditioning metal surfaces prior to phosphate conversion coating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998039498A1 (en) 1997-03-07 1998-09-11 Henkel Corporation Conditioning metal surfaces prior to phosphate conversion coating
JPH10245685A (en) * 1997-03-07 1998-09-14 Nippon Parkerizing Co Ltd Pretreating liquid for surface conditioning before phosphate film chemical conversion treatment of metal and surface conditioning method

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