JPS56142822A - Production of high-strength zinc-plated steel plate excellent in workability - Google Patents

Production of high-strength zinc-plated steel plate excellent in workability

Info

Publication number
JPS56142822A
JPS56142822A JP4351380A JP4351380A JPS56142822A JP S56142822 A JPS56142822 A JP S56142822A JP 4351380 A JP4351380 A JP 4351380A JP 4351380 A JP4351380 A JP 4351380A JP S56142822 A JPS56142822 A JP S56142822A
Authority
JP
Japan
Prior art keywords
steel plate
temperature
plated
cooled
cooling rate
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
JP4351380A
Other languages
Japanese (ja)
Inventor
Koji Kishida
Nagayasu Takemoto
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 JP4351380A priority Critical patent/JPS56142822A/en
Publication of JPS56142822A publication Critical patent/JPS56142822A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

PURPOSE:To produce the titled steel plate having a composite structure by a method wherein a steel plate of a specified composition is successively subjected to soaking at a temperature of not lower than Ac1 temperature, cooling at a predetermined cooling rate and plating in a continuous hot dipping line, then it is reheated for an alloying treatment and is cooled to a temperature of not higher than Ms temperature. CONSTITUTION:A steel plate containing not more than 0.15% of C, 1.0-2.5% of (Mn+Cr), not more than 0.015% of S, not more than 0.02% of Ca, not more than 0.1% of Zr and not more than 0.1% of rare-earth elements is prepared. Then, in the continuous galvanizing line, the steel plate is soaked at a temperature of not lower than Ac1 but below 900 deg.C to austenitize the steel partly or entirely, then it is cooled at a cooling rate of not less than 5 deg.C/sec from Ac1 to the galvanizing bath temperature and is plated. The steel plate thus plated is then reheated to a temperature of not higher than 600 deg.C, preferably not lower than 500 deg.C and maintained at that temperature for the alloying treatment, thereafter it is cooled at a cooling rate of not less than 10 deg.C/sec to produce the objective high-strength zinc-plated steel plate having the composite strcuture and excellent workability.
JP4351380A 1980-04-04 1980-04-04 Production of high-strength zinc-plated steel plate excellent in workability Pending JPS56142822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4351380A JPS56142822A (en) 1980-04-04 1980-04-04 Production of high-strength zinc-plated steel plate excellent in workability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4351380A JPS56142822A (en) 1980-04-04 1980-04-04 Production of high-strength zinc-plated steel plate excellent in workability

Publications (1)

Publication Number Publication Date
JPS56142822A true JPS56142822A (en) 1981-11-07

Family

ID=12665808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4351380A Pending JPS56142822A (en) 1980-04-04 1980-04-04 Production of high-strength zinc-plated steel plate excellent in workability

Country Status (1)

Country Link
JP (1) JPS56142822A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6213594A (en) * 1985-07-12 1987-01-22 Nippon Steel Corp Steel sheet for sn-coated vessel having excellent property to be coated and corrosion resistance and its production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6213594A (en) * 1985-07-12 1987-01-22 Nippon Steel Corp Steel sheet for sn-coated vessel having excellent property to be coated and corrosion resistance and its production
JPH0216396B2 (en) * 1985-07-12 1990-04-17 Nippon Steel Corp

Similar Documents

Publication Publication Date Title
CA2552963A1 (en) Hot dip galvanized high strength steel sheet excellent in plating adhesion and hole expandability and method of production of same
JPS55122821A (en) Manufacture of alloyed zinc-plated high tensile steel sheet with high workability
US4394186A (en) Method for producing a dual-phase steel sheet having excellent formability, high artificial-aging hardenability after forming, high strength, low yield ratio, and high ductility
JPS5770291A (en) Highly corrosion resistant surface treated steel and preparation thereof
CN110093491B (en) Cold-rolled hot-galvanized dual-phase steel and manufacturing method thereof
JPS5789437A (en) Production of cold rolled steel plate having excellent workability and bake hardenability
JP3885763B2 (en) Hot-dip galvanized steel sheet for quenching, its manufacturing method and use
JPS5779160A (en) Production of zinc-iron type alloy coated high tensile steel plate
JPS595649B2 (en) Method for manufacturing high-strength hot-dip galvanized steel sheet with excellent workability
JPS56142822A (en) Production of high-strength zinc-plated steel plate excellent in workability
JPS56142821A (en) Production of high-strength zinc-plated steel plate excellent in workability
JPS5757828A (en) Production of alloyed hot-dipped galvanized steel plate
JPS5773125A (en) Production of alloying-treated zinc hot-dipped steel plate
JPS5719331A (en) Production of zinc hot dipped steel of good workability and high strength
JP3110238B2 (en) Method for producing hot-dip galvanized steel sheet and alloyed hot-dip galvanized steel sheet
JPS55125235A (en) Production of alloyed zinc hot dipped high tensile steel plate of superior workability
DE69110513D1 (en) Process for hot metallizing steel strip.
JPS56163219A (en) Production of cold rolled high-tensile galvanized steel strip having low yield ratio
KR930703476A (en) Manufacturing method of hot dip galvanized steel sheet
JPS55131165A (en) Galvanizing method for silicon-containing steel sheet
JPS5757827A (en) Production of alloyed hot-dipped galvanized steel plate
JPS5723054A (en) Preparation of zinc plated steel strip with excellent plating close adhesiveness
JPS5554522A (en) Manufacture of hot dipped steel sheet with superior workability
JPS5839770A (en) Production of high-strength zinc hot dipped steel plate
JPS6425921A (en) Manufacture of cold-rolled steel sheet combining high ductility with high strength