JPS5754261A - Manufacture of high tensile hot dipped steel sheet of excellent press-formability - Google Patents

Manufacture of high tensile hot dipped steel sheet of excellent press-formability

Info

Publication number
JPS5754261A
JPS5754261A JP12861580A JP12861580A JPS5754261A JP S5754261 A JPS5754261 A JP S5754261A JP 12861580 A JP12861580 A JP 12861580A JP 12861580 A JP12861580 A JP 12861580A JP S5754261 A JPS5754261 A JP S5754261A
Authority
JP
Japan
Prior art keywords
hot
formability
steel sheet
steel
dipped
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
JP12861580A
Other languages
Japanese (ja)
Other versions
JPS6111293B2 (en
Inventor
Takayoshi Shimomura
Koichi Osawa
Masayuki Kinoshita
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 JP12861580A priority Critical patent/JPS5754261A/en
Publication of JPS5754261A publication Critical patent/JPS5754261A/en
Publication of JPS6111293B2 publication Critical patent/JPS6111293B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Coating With Molten Metal (AREA)

Abstract

PURPOSE: To obtain hot dipped steel sheet having high tensile strength, overall press-formability and excellent plating adhesion by reheating the steel slab of limited composition after hot rolling and cold rolling at specified conditions and in succession passing the continuous hot dipping line of zinc.
CONSTITUTION: A steel slab is heated at over 1,200°C, of which composition is C< 0.02%, 0.02W0.50% Si, 0.60W0.25% Mn, Si+Mn<2.5%, 0.010W0.040% P, S<0.010%, 0.020W0.090% sol.Al, Ti as Ti/C=5W20. This is finished over 870°C and wound up, then cold rolled at reduction ratio of more than 50%. This steel strip is first recrystallized by heating and soaking at 730W900°C for 10W120sec and successivey hot-dipped at the hot hot-dipping line. The hot-dipped steel sheet suitable for the automobile car body etc. having tensile strength higher than 40kg/ mm2 and good press-formability including deep drawing is obtined by the steel composition and the specified thermal condition.
COPYRIGHT: (C)1982,JPO&Japio
JP12861580A 1980-09-18 1980-09-18 Manufacture of high tensile hot dipped steel sheet of excellent press-formability Granted JPS5754261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12861580A JPS5754261A (en) 1980-09-18 1980-09-18 Manufacture of high tensile hot dipped steel sheet of excellent press-formability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12861580A JPS5754261A (en) 1980-09-18 1980-09-18 Manufacture of high tensile hot dipped steel sheet of excellent press-formability

Publications (2)

Publication Number Publication Date
JPS5754261A true JPS5754261A (en) 1982-03-31
JPS6111293B2 JPS6111293B2 (en) 1986-04-02

Family

ID=14989160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12861580A Granted JPS5754261A (en) 1980-09-18 1980-09-18 Manufacture of high tensile hot dipped steel sheet of excellent press-formability

Country Status (1)

Country Link
JP (1) JPS5754261A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02163346A (en) * 1988-12-15 1990-06-22 Nisshin Steel Co Ltd Hot dip galvanized cold rolled high-tensile steel sheet excellent in press formability and its production
US9268276B2 (en) 2014-03-07 2016-02-23 Ricoh Company, Ltd. Fixing device and image forming apparatus that include a separator disposed downstream from a fixing nip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02163346A (en) * 1988-12-15 1990-06-22 Nisshin Steel Co Ltd Hot dip galvanized cold rolled high-tensile steel sheet excellent in press formability and its production
US9268276B2 (en) 2014-03-07 2016-02-23 Ricoh Company, Ltd. Fixing device and image forming apparatus that include a separator disposed downstream from a fixing nip

Also Published As

Publication number Publication date
JPS6111293B2 (en) 1986-04-02

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