ES2027940T3 - STEEL AND A METHOD FOR MANUFACTURING STEEL. - Google Patents

STEEL AND A METHOD FOR MANUFACTURING STEEL.

Info

Publication number
ES2027940T3
ES2027940T3 ES91850164T ES91850164T ES2027940T3 ES 2027940 T3 ES2027940 T3 ES 2027940T3 ES 91850164 T ES91850164 T ES 91850164T ES 91850164 T ES91850164 T ES 91850164T ES 2027940 T3 ES2027940 T3 ES 2027940T3
Authority
ES
Spain
Prior art keywords
steel
manganese
silicon
manufacturing
tugsten
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 - Lifetime
Application number
ES91850164T
Other languages
Spanish (es)
Other versions
ES2027940T1 (en
Inventor
Thore Lund
Ing-Marie Drugge
Anneli Ingo
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.)
Ovako Steel AB
Original Assignee
Ovako Steel AB
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=20379865&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2027940(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ovako Steel AB filed Critical Ovako Steel AB
Publication of ES2027940T1 publication Critical patent/ES2027940T1/en
Application granted granted Critical
Publication of ES2027940T3 publication Critical patent/ES2027940T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow cooling

Landscapes

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

Abstract

SE PRESENTA UN ACERO EN EL CUAL EL UNICO ADITIVO DE ALEACCION (A PARTE DEL CARBONO) ES EL MOLIBDENO Y/O TUGSTENO EN UNA CANTIDAD TOTAL DE ENTRE 0.2 Y 2.0%. EL ACERO SE MANUFACTURA CON UN METODO MEDIANTE EL CUAL SE PRODUCE UNA CANTIDAD INCREMENTADA DE FERRITA EN EL ACERO ANTES DE QUE SE FORME PERLITA EN EL MISMO MEDIANTE EL MANTENIMIENTO DE LA RELACION DE ENFRIAMIENTO POR DEBAJO DE UN VALOR CRITICO, A CAUSA DE LO CUAL SE FACILITA EL TRABAJO CON EL ACERO ANTES DE SU TRATAMIENTO FINAL. LA CANTIDAD DE SILICIO Y MANGANESO EN EL ACERO SE ENCUENTRA PARTICULARMENTE LIMITADA, EL CONTENIDO TOTAL DE SILICIO Y MANGANESO SERA INFERIOR AL 0.30% Y LA CANTIDAD DE CADA UNA DE ESAS SUBSTANCIAS (SILICIO Y MANGANESO) ESTARA PREFERIBLEMENTE POR DEBAJO DEL 0.15%. EN UNA CIERTA CONFORMACION, SE AÑADE ENTRE UN 1 Y 2% DE CROMO AL ACERO PARA INCREMENTAR LA CAPACIDAD DE TEMPLADO DEL MISMO.A STEEL IS PRESENTED IN WHICH THE ONLY ALLOY ADDITIVE (A PART OF CARBON) IS MOLYBDENUM AND / OR TUGSTEN IN A TOTAL AMOUNT OF BETWEEN 0.2 AND 2.0%. STEEL IS MANUFACTURED BY A METHOD THROUGH WHICH AN INCREASED AMOUNT OF FERRITE IS PRODUCED IN STEEL BEFORE PERLITE IS FORMED THROUGH THE MAINTENANCE OF THE COOLING RATIO, BELOW A CRITICAL VALUE, WHICH IS FACILITATES THE WORK WITH STEEL BEFORE YOUR FINAL TREATMENT. THE QUANTITY OF SILICON AND MANGANESE IN STEEL IS PARTICULARLY LIMITED, THE TOTAL CONTENT OF SILICON AND MANGANESE WILL BE LESS THAN 0.30% AND THE QUANTITY OF EACH OF THESE SUBSTANCES (SILICON AND MANGANESE) WILL BE PREFERABLY BELOW .5 IN A CERTAIN CONFORMATION, IT IS ADDED BETWEEN 1 AND 2% OF CHROME TO THE STEEL TO INCREASE THE TEMPERING CAPACITY OF THE SAME.

ES91850164T 1990-06-26 1991-06-14 STEEL AND A METHOD FOR MANUFACTURING STEEL. Expired - Lifetime ES2027940T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9002249A SE507215C2 (en) 1990-06-26 1990-06-26 Process for making a steel more malleable by ferrite separation and steel made according to the process

Publications (2)

Publication Number Publication Date
ES2027940T1 ES2027940T1 (en) 1992-07-01
ES2027940T3 true ES2027940T3 (en) 1995-12-16

Family

ID=20379865

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91850164T Expired - Lifetime ES2027940T3 (en) 1990-06-26 1991-06-14 STEEL AND A METHOD FOR MANUFACTURING STEEL.

Country Status (4)

Country Link
EP (1) EP0464013B1 (en)
DE (2) DE464013T1 (en)
ES (1) ES2027940T3 (en)
SE (1) SE507215C2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2158036A (en) * 1938-08-17 1939-05-09 Simonds Saw And Steei Co Hack saw steel
CH267753A (en) * 1947-08-29 1950-04-15 Schoeller Bleckmann Stahlwerke Process for making woodworking saws.
US2778755A (en) * 1953-01-27 1957-01-22 Kropp Forge Company Method for the controlled cooling of steel forgings
NL8800900A (en) * 1988-04-08 1989-11-01 Skf Ind Trading & Dev STEEL, INCLUDING IRON CARBON, SILICON, PHOSPHORUS AND MOLYBDENE.

Also Published As

Publication number Publication date
SE9002249L (en) 1991-12-27
SE9002249D0 (en) 1990-06-26
EP0464013A1 (en) 1992-01-02
ES2027940T1 (en) 1992-07-01
DE69112295D1 (en) 1995-09-28
DE69112295T2 (en) 1996-01-25
EP0464013B1 (en) 1995-08-23
DE464013T1 (en) 1992-04-30
SE507215C2 (en) 1998-04-27

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