ATE126276T1 - METHOD FOR PRODUCING COILBREAK-FREE HOT STRIP AND AGING-RESISTANT HOT-DIP GALVANIZED COLD STRIP. - Google Patents

METHOD FOR PRODUCING COILBREAK-FREE HOT STRIP AND AGING-RESISTANT HOT-DIP GALVANIZED COLD STRIP.

Info

Publication number
ATE126276T1
ATE126276T1 AT90906870T AT90906870T ATE126276T1 AT E126276 T1 ATE126276 T1 AT E126276T1 AT 90906870 T AT90906870 T AT 90906870T AT 90906870 T AT90906870 T AT 90906870T AT E126276 T1 ATE126276 T1 AT E126276T1
Authority
AT
Austria
Prior art keywords
strip
hot
free
resistant
steel
Prior art date
Application number
AT90906870T
Other languages
German (de)
Inventor
Klaus Freier
Klaus-Dieter Hufenbach
Stefan Hussy
Walter Zimnik
Original Assignee
Preussag Stahl Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6380474&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE126276(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Preussag Stahl Ag filed Critical Preussag Stahl Ag
Application granted granted Critical
Publication of ATE126276T1 publication Critical patent/ATE126276T1/en

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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips

Abstract

Process for manufacturing coil-break-free hot strip and age-resistant hot-galvanized strip with constant long-term elongation at yield and low yield point. Conventionally, coil breaks in hot strip are prevented either by adequate alloying or by dressing the hot strip to prevent elongation at yield. The steel strip of the invention, on the other hand, is manufactured with a minimal quantity of alloying titanium and a low reel temperature between 550 and 400 DEG C. The quantity of alloying titanium chosen is equal to the quantity stoichiometrically necessary to bind the nitrogen but less than that required to bind the carbon and the nitrogen. In addition, the coil-break-free, age-resistant steel used for the hot-galvanized strips is a vacuum steel with a titanium content of 0.02 to 0.04 % or an LD steel with a titanium content of 0.03 to 0.08 %.
AT90906870T 1989-05-09 1990-05-09 METHOD FOR PRODUCING COILBREAK-FREE HOT STRIP AND AGING-RESISTANT HOT-DIP GALVANIZED COLD STRIP. ATE126276T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3915445 1989-05-09

Publications (1)

Publication Number Publication Date
ATE126276T1 true ATE126276T1 (en) 1995-08-15

Family

ID=6380474

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90906870T ATE126276T1 (en) 1989-05-09 1990-05-09 METHOD FOR PRODUCING COILBREAK-FREE HOT STRIP AND AGING-RESISTANT HOT-DIP GALVANIZED COLD STRIP.

Country Status (7)

Country Link
EP (1) EP0435968B2 (en)
JP (1) JPH04500541A (en)
AT (1) ATE126276T1 (en)
DE (2) DE4015248A1 (en)
DK (1) DK0435968T3 (en)
ES (1) ES2075899T3 (en)
WO (1) WO1990013672A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19543804B4 (en) * 1995-11-24 2004-02-05 Salzgitter Ag Process for producing hot-dip galvanized steel strip and hot-dip galvanized sheet or strip made of steel made therewith
DE19708666A1 (en) * 1997-03-04 1998-09-10 Schloemann Siemag Ag Method and plant for producing metal strip
KR20060028909A (en) * 2004-09-30 2006-04-04 주식회사 포스코 High strength cold rolled steel sheet excellent in shape freezability,and manufacturing method thereof
RU2675891C1 (en) * 2018-05-22 2018-12-25 Публичное акционерное общество "Северсталь" METHOD OF HOT ROLLED SHEETS MANUFACTURING FROM K60 DURABILITY CLASS LOW-ALLOYED STEEL WITH THE THICKNESS OF UP TO 40 mm

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241209B1 (en) * 1970-12-19 1977-10-17
US3947293A (en) * 1972-01-31 1976-03-30 Nippon Steel Corporation Method for producing high-strength cold rolled steel sheet
JPS5669358A (en) * 1979-10-18 1981-06-10 Kobe Steel Ltd Ultra low carbon cold rolled steel sheet with superior press formability
DE3603691A1 (en) * 1986-02-06 1987-08-20 Hoesch Stahl Ag AGING-FREE STEEL
US4931106A (en) * 1987-09-14 1990-06-05 Kawasaki Steel Corporation Hot rolled steel sheet having high resistances against secondary-work embrittlement and brazing embrittlement and adapted for ultra-deep drawing and a method for producing the same
DE3803064C2 (en) * 1988-01-29 1995-04-20 Preussag Stahl Ag Cold rolled sheet or strip and process for its manufacture

Also Published As

Publication number Publication date
DK0435968T3 (en) 1995-12-27
EP0435968A1 (en) 1991-07-10
WO1990013672A1 (en) 1990-11-15
EP0435968B2 (en) 2002-06-05
DE4015248A1 (en) 1991-01-03
DE59009505D1 (en) 1995-09-14
JPH04500541A (en) 1992-01-30
EP0435968B1 (en) 1995-08-09
ES2075899T3 (en) 1995-10-16

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