DE905614C - Production of steel for siliconized sheets with reduced watt losses - Google Patents

Production of steel for siliconized sheets with reduced watt losses

Info

Publication number
DE905614C
DE905614C DEP12727A DEP0012727A DE905614C DE 905614 C DE905614 C DE 905614C DE P12727 A DEP12727 A DE P12727A DE P0012727 A DEP0012727 A DE P0012727A DE 905614 C DE905614 C DE 905614C
Authority
DE
Germany
Prior art keywords
steel
sheets
siliconized
production
watt losses
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
Application number
DEP12727A
Other languages
German (de)
Inventor
Ernst Neuhoff
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.)
Gussstahlwerk Oberkassel A G
Original Assignee
Gussstahlwerk Oberkassel A G
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 Gussstahlwerk Oberkassel A G filed Critical Gussstahlwerk Oberkassel A G
Priority to DEP12727A priority Critical patent/DE905614C/en
Application granted granted Critical
Publication of DE905614C publication Critical patent/DE905614C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Magnetic Ceramics (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Description

Herstellung von Stahl für silizierte Bleche mit verminderten Wattverlusten Es ist bekannt, daß die magnetischen Eigenschaften der sogenannten silizierten Bleche, wie sie für Dynamo- und Transformatorenbleche und -bänder mit etwa i his 40;'o Silizium verwendet werden, stark durch den Silizium-, Kohlenstoff- und Mangan-Gehalt und die Herstellung des Stahles beeinflußt werden.Production of steel for siliconized sheets with reduced watt losses It is known that the magnetic properties of the so-called siliconized sheets, as they are for dynamo and transformer sheets and strips with about i to 40; 'o silicon be used heavily by the silicon, carbon and manganese content and the manufacture of steel can be influenced.

In Verfolgung einer Betriebsbeobachtung wurde nun festgestellt, daß sich die Wattverluste derartiger Bleche erheblich verbessern lassen, wenn man auf die Schlacke des fertig im Ofen hergestellten Stahles eine kleine Menge kieselsäurehaltiger Stoffe, insbesondere feuerfester Steine (saurer Silikasteine), aufwirft. Es genügt hierbei z. B. etwa eine Menge von etwa 2 5 kg Steine auf eine 6-t-Elektroschmelze. Ob die Wirkung auf einen günstigen Einfluß der dabei aus der Schlacke in dem Stahl reduzierten Siliziumm@engen oder auf andere Einflüsse zurückgeführt werden kann, ist noch nicht klargestellt. Sicher ist aber, daß durch Zugabe etwa der angegebenen Menge feuerfester Steine zum angegebenen Zeitpunkt die magnetischen Eigenschaften, insbesondere die Wattverluste der aus dem Stahl hergestellten Bleche gegenüber Blechen, die aus einem. ohne Anwendung dieser Maßnahme hergestellten Stahl gewalzt wurden, verbessert werden.In pursuit of an operational observation, it has now been found that the watt losses of such sheets can be significantly improved if a small amount of silicic acid-containing substances, in particular refractory bricks (acidic silica bricks), is thrown onto the slag of the steel produced in the furnace. It is sufficient here, for. B. about a quantity of about 25 kg stones on a 6-tonne electric smelter. It has not yet been clarified whether the effect can be attributed to a favorable influence of the silicon mines reduced from the slag in the steel or to other influences. What is certain, however, is that by adding about the specified amount of refractory bricks at the specified time, the magnetic properties, in particular the watt losses, of the sheets made from the steel compared to sheets made from a. steel produced without applying this measure can be improved.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Stahl für silizierte Bleche mit verminderten Wattverlusten, dadurch gekennzeichnet, daß auf die Schlacke des fertigen Stahlbades kurz vor dem Abstich eine kleine Menge kieselsäurehaltiger Stoffe, insbesondere feuerfester Steine (saurer Silikasteine), aufgegeben werden.PATENT CLAIM: Process for the production of steel for siliconized Sheets with reduced watt losses, characterized in that on the slag of the finished steel bath shortly before tapping a small amount of silicic acid Substances, especially refractory bricks (acidic silica bricks), are abandoned.
DEP12727A 1948-10-02 1948-10-02 Production of steel for siliconized sheets with reduced watt losses Expired DE905614C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP12727A DE905614C (en) 1948-10-02 1948-10-02 Production of steel for siliconized sheets with reduced watt losses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP12727A DE905614C (en) 1948-10-02 1948-10-02 Production of steel for siliconized sheets with reduced watt losses

Publications (1)

Publication Number Publication Date
DE905614C true DE905614C (en) 1954-03-04

Family

ID=7364229

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP12727A Expired DE905614C (en) 1948-10-02 1948-10-02 Production of steel for siliconized sheets with reduced watt losses

Country Status (1)

Country Link
DE (1) DE905614C (en)

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