DE59009505D1 - METHOD FOR PRODUCING COILBREAK-FREE HOT RIBBON AND AGING-RESISTANT FIRE-GALVANIZED COLD RIBBON. - Google Patents

METHOD FOR PRODUCING COILBREAK-FREE HOT RIBBON AND AGING-RESISTANT FIRE-GALVANIZED COLD RIBBON.

Info

Publication number
DE59009505D1
DE59009505D1 DE59009505T DE59009505T DE59009505D1 DE 59009505 D1 DE59009505 D1 DE 59009505D1 DE 59009505 T DE59009505 T DE 59009505T DE 59009505 T DE59009505 T DE 59009505T DE 59009505 D1 DE59009505 D1 DE 59009505D1
Authority
DE
Germany
Prior art keywords
ribbon
hot
strip
steel
coilbreak
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.)
Expired - Fee Related
Application number
DE59009505T
Other languages
German (de)
Inventor
Klaus Freier
Klaus-Dieter Hufenbach
Stefan Hussy
Walter Zimnik
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.)
Salzgitter AG
Original Assignee
PREUSSAG STAHL AG 31226 PEINE DE
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=DE59009505(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by PREUSSAG STAHL AG 31226 PEINE DE, Preussag Stahl AG filed Critical PREUSSAG STAHL AG 31226 PEINE DE
Priority to DE59009505T priority Critical patent/DE59009505D1/en
Application granted granted Critical
Publication of DE59009505D1 publication Critical patent/DE59009505D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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 %.
DE59009505T 1989-05-09 1990-05-09 METHOD FOR PRODUCING COILBREAK-FREE HOT RIBBON AND AGING-RESISTANT FIRE-GALVANIZED COLD RIBBON. Expired - Fee Related DE59009505D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE59009505T DE59009505D1 (en) 1989-05-09 1990-05-09 METHOD FOR PRODUCING COILBREAK-FREE HOT RIBBON AND AGING-RESISTANT FIRE-GALVANIZED COLD RIBBON.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3915445 1989-05-09
DE59009505T DE59009505D1 (en) 1989-05-09 1990-05-09 METHOD FOR PRODUCING COILBREAK-FREE HOT RIBBON AND AGING-RESISTANT FIRE-GALVANIZED COLD RIBBON.
PCT/DE1990/000338 WO1990013672A1 (en) 1989-05-09 1990-05-09 Process for manufacturing coil-break-free hot strip and age-resistant hot-galvanized cold strip

Publications (1)

Publication Number Publication Date
DE59009505D1 true DE59009505D1 (en) 1995-09-14

Family

ID=6380474

Family Applications (2)

Application Number Title Priority Date Filing Date
DE59009505T Expired - Fee Related DE59009505D1 (en) 1989-05-09 1990-05-09 METHOD FOR PRODUCING COILBREAK-FREE HOT RIBBON AND AGING-RESISTANT FIRE-GALVANIZED COLD RIBBON.
DE4015248A Withdrawn DE4015248A1 (en) 1989-05-09 1990-05-09 Mfg. coil-break-free hot rolled strip

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE4015248A Withdrawn DE4015248A1 (en) 1989-05-09 1990-05-09 Mfg. coil-break-free hot rolled strip

Country Status (7)

Country Link
EP (1) EP0435968B2 (en)
JP (1) JPH04500541A (en)
AT (1) ATE126276T1 (en)
DE (2) DE59009505D1 (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
DE4015248A1 (en) 1991-01-03
EP0435968A1 (en) 1991-07-10
EP0435968B1 (en) 1995-08-09
JPH04500541A (en) 1992-01-30
ES2075899T3 (en) 1995-10-16
ATE126276T1 (en) 1995-08-15
EP0435968B2 (en) 2002-06-05
WO1990013672A1 (en) 1990-11-15

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: SALZGITTER AG, 31226 PEINE, DE

8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee