JPS5629663A - Manufacture of galvanized steel strip using hot rolled steel strip as substrate - Google Patents

Manufacture of galvanized steel strip using hot rolled steel strip as substrate

Info

Publication number
JPS5629663A
JPS5629663A JP10226679A JP10226679A JPS5629663A JP S5629663 A JPS5629663 A JP S5629663A JP 10226679 A JP10226679 A JP 10226679A JP 10226679 A JP10226679 A JP 10226679A JP S5629663 A JPS5629663 A JP S5629663A
Authority
JP
Japan
Prior art keywords
steel strip
layer
alloy layer
furnace
rolled steel
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
JP10226679A
Other languages
Japanese (ja)
Other versions
JPS5853715B2 (en
Inventor
Hidekatsu Yano
Masaki Abe
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP54102266A priority Critical patent/JPS5853715B2/en
Publication of JPS5629663A publication Critical patent/JPS5629663A/en
Publication of JPS5853715B2 publication Critical patent/JPS5853715B2/en
Expired 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C23C2/29—Cooling or quenching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

PURPOSE:To prevent blister occuring in the process of plating by a method wherein a steel strip immediately after galvanizing is quickly heated in a heating furnace for specified period so that a plated layer is formed into an alloy layer of specified thickness and a zinc layer. CONSTITUTION:Immediately after galvanizing, a hot-rolled steel strip is rapidly heated in a heating furnace for 4-20sec, so that the plated layer is formed into an alloy layer of 3-20mu in thickness and a zinc layer is remained on top of the alloy layer. Said procedure causes Fe-Zn alloy layer to properly develop and to trap occuluded hydrogen in the furnace. For example, a steel strip 1 is passed through a nonoxidizing preheat furnace 2, uniform heating zone and cooling zone 3, is applied with galvanization in a zinc plating tank 4, passed through a gas-wiping 5, and is treated at 450-550 deg.C in a heating furnace 6. During said process of applying galvanization to a hot rolled steel strip, blister occurrence is properly prevented and good adhesive property is maintained.
JP54102266A 1979-08-13 1979-08-13 Method for manufacturing hot-dip galvanized steel sheets using hot-rolled steel sheets as base sheets Expired JPS5853715B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54102266A JPS5853715B2 (en) 1979-08-13 1979-08-13 Method for manufacturing hot-dip galvanized steel sheets using hot-rolled steel sheets as base sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54102266A JPS5853715B2 (en) 1979-08-13 1979-08-13 Method for manufacturing hot-dip galvanized steel sheets using hot-rolled steel sheets as base sheets

Publications (2)

Publication Number Publication Date
JPS5629663A true JPS5629663A (en) 1981-03-25
JPS5853715B2 JPS5853715B2 (en) 1983-11-30

Family

ID=14322782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54102266A Expired JPS5853715B2 (en) 1979-08-13 1979-08-13 Method for manufacturing hot-dip galvanized steel sheets using hot-rolled steel sheets as base sheets

Country Status (1)

Country Link
JP (1) JPS5853715B2 (en)

Also Published As

Publication number Publication date
JPS5853715B2 (en) 1983-11-30

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