DE2633865A1 - CARRIER BODY FOR THE INTRODUCTION OF TREATMENT PRODUCTS IN LIQUID METALS - Google Patents

CARRIER BODY FOR THE INTRODUCTION OF TREATMENT PRODUCTS IN LIQUID METALS

Info

Publication number
DE2633865A1
DE2633865A1 DE19762633865 DE2633865A DE2633865A1 DE 2633865 A1 DE2633865 A1 DE 2633865A1 DE 19762633865 DE19762633865 DE 19762633865 DE 2633865 A DE2633865 A DE 2633865A DE 2633865 A1 DE2633865 A1 DE 2633865A1
Authority
DE
Germany
Prior art keywords
carrier body
liquid metals
introduction
treatment products
magnesium
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.)
Ceased
Application number
DE19762633865
Other languages
German (de)
Inventor
Gammal Tarek Prof Dr Ing El
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.)
GAMMAL, TAREK EL, PROF. DR.-ING., 5100 AACHEN, DE
Original Assignee
Foseco Trading 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
Application filed by Foseco Trading AG filed Critical Foseco Trading AG
Priority to DE19762633865 priority Critical patent/DE2633865A1/en
Priority to SE7611368A priority patent/SE7611368L/en
Priority to BR7606896A priority patent/BR7606896A/en
Priority to CA263,426A priority patent/CA1079529A/en
Priority to AU18757/76A priority patent/AU504073B2/en
Priority to JP51124362A priority patent/JPS5257010A/en
Priority to FR7631054A priority patent/FR2328050A1/en
Priority to GB42992/76A priority patent/GB1562818A/en
Publication of DE2633865A1 publication Critical patent/DE2633865A1/en
Ceased 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/10—Making spheroidal graphite cast-iron
    • 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
    • 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising

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)
  • Manufacture And Refinement Of Metals (AREA)

Description

"Trägerkörper zum Einbringen von Behandlungsmitteln in flüssige Metalle""Carrier body for introducing treatment agents into liquid metals"

Im Hauptpatent sind wärmeisolierende, gasdurchlässige Trägerkörper zum Einbringen von Behandlungsmitteln in flüssige Metalle beschrieben worden. Die Trägerkörper, die aus organischen und/oder anorganischen faserigen Stoffen und Hilfsmitteln hergestellt sind, beinhalten die Reaktionsmittel. Die faserigen, organischen Stoffe erhöhen die Wärmeisolierung des Körpers und fördern die Bildung von Hohlräumen und Kanälen, wodurch die gebildeten Dämpfe oder Schmelzen der Behandlungsmittel (z. B. Alkalimetalle, Erdalkalimetalle, Metalle der Seltenen Erden wie Ca, Mg, Al, Na, Ce oder deren Legierungen) aus dem Trägerkörper reguliert entweichen können.The main patent includes heat-insulating, gas-permeable support bodies has been described for introducing treatment agents into liquid metals. the Carrier bodies made from organic and / or inorganic fibrous materials and auxiliaries are prepared include the reactants. The fibrous, organic matter increase the thermal insulation of the body and promote the formation of cavities and Channels, whereby the formed vapors or melting of the treatment agents (e.g. B. alkali metals, alkaline earth metals, rare earth metals such as Ca, Mg, Al, Na, Ce or their alloys) can escape in a regulated manner from the carrier body.

In diesem Körper sollen sich die Teile der Reaktionsmittel möglichst nicht gegenseitig berühren, so daß kein Wärmetransport über die Reaktionsmittel stattfinden kann. In diesem Fall befinden sich die Reaktionsmittel suspendiert in der Masse des Trägerkörpers, der vorzugsweise viele Hohlräume und Kanäle enthält. Es hat sich erwiesen, daß die oben beschriebenen Trägerkörper einen Magnesiumgehalt bis zu 35 % beinhalten können, ohne daß die Gefahr des Zerplatzens oder'Explodierens des Körpers im flüssigen Stahl besteht.In this body the parts of the reactants should be as possible do not touch each other, so that no heat transfer via the reactants can take place. In this case the reactants are suspended in the mass of the carrier body, which preferably contains many cavities and channels. It has been found that the carrier bodies described above have a magnesium content can contain up to 35% without the risk of bursting or exploding of the body consists of liquid steel.

Folgendes Beispiel zeigt die Zusammensetzung solcher Trägerkörper: MgO - Pulver : ca. 61 % Magnesium der Körnung O - 0,5 mm : " 35 % org. Bindemittel '- - . " 2 % Papier : " 2 % Diese Komponenten werden in Form eines Breies mit Wasser zusammengemischt, entwässert und anschließend getrocknet bei 2000C.The following example shows the composition of such carriers: MgO powder: approx. 61% magnesium, grain size O - 0.5 mm: "35% organic binder '- -. "2% paper:" 2% These components are in the form of a pulp with water mixed together, dehydrated and then dried at 2000C.

Beim Eintauchen des Körpers in eine Stahlschmelze bei Temperaturen von über 16200C kann der Magnesiumdampf aus dem Reaktionskörper in die Stahlschmelze ohne Zerstörung des Körpers entweichen. Im Vergleich zu anderen Magnesiumträgern, z. B. mit Magnesium gefüllte poröse Körper, benötigte die Magnesiumentweichung in die Stahlschmelze das Dreifache an Zeit. Untersuchungen der Trägerkörper vor und nach dem Eintauchen haben bewiesen, daß dieses optimale Verhalten auf die Rolle der Fasern zurückzuführen ist.When the body is immersed in molten steel at temperatures from over 16200C the magnesium vapor from the reaction body can enter the molten steel escape without destroying the body. Compared to other magnesium carriers, z. B. porous bodies filled with magnesium required the magnesium to escape in molten steel three times as long. Investigations of the carrier body before and after immersion have proven that this optimal behavior on the role the fibers.

Claims (1)

-Ansprüche "Trägerkörper zum Einbringen von Behandlungsmitteln in flüssige Metalle" Anspruch 1 Trägerkörper zum Einbringen von Reaktionsstoffen in flüssige Metalle oder Legierungen d a d u r c h g e k e n n -z e i c h n e t , daß sie aus einer Mischung der Zusammensetzung von ca. 35W % Magnesium der Körnung O - 0,5 mm,10 % Papier, 6 % organischen Bindemitteln und 34 - 95 % MgO -Pulver hergestellt sind. Claims "Carrier body for introducing treatment agents into liquid metals "claim 1 carrier body for introducing reactants into liquid metals or alloys denote that it is made from a mixture of the composition of approx. 35W% magnesium of grain size O - 0.5 mm, 10% paper, 6% organic binders and 34 - 95% MgO powder are.
DE19762633865 1975-10-15 1976-07-28 CARRIER BODY FOR THE INTRODUCTION OF TREATMENT PRODUCTS IN LIQUID METALS Ceased DE2633865A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE19762633865 DE2633865A1 (en) 1976-07-28 1976-07-28 CARRIER BODY FOR THE INTRODUCTION OF TREATMENT PRODUCTS IN LIQUID METALS
SE7611368A SE7611368L (en) 1975-10-15 1976-10-13 CARRIER BODY FOR INFORMATION OF REACTIVITY IN METAL MELTOR
BR7606896A BR7606896A (en) 1975-10-15 1976-10-14 CARRYING ELEMENT FOR INTRODUCTION OF REACTIVE AGENTS IN METAL FUSES
CA263,426A CA1079529A (en) 1975-10-15 1976-10-14 Treatment body for the introduction of treatment agents into molten metals
AU18757/76A AU504073B2 (en) 1975-10-15 1976-10-15 A carrier body for abiding a treating agent to morten metal
JP51124362A JPS5257010A (en) 1975-10-15 1976-10-15 Reactor carrier for molten metal
FR7631054A FR2328050A1 (en) 1975-10-15 1976-10-15 SUPPORT BLOCK FOR THE INTRODUCTION OF REAGENTS IN MELTED METALS
GB42992/76A GB1562818A (en) 1975-10-15 1976-10-15 Carrier for introducing vapourising reactants into a metal melt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762633865 DE2633865A1 (en) 1976-07-28 1976-07-28 CARRIER BODY FOR THE INTRODUCTION OF TREATMENT PRODUCTS IN LIQUID METALS

Publications (1)

Publication Number Publication Date
DE2633865A1 true DE2633865A1 (en) 1978-02-02

Family

ID=5984126

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762633865 Ceased DE2633865A1 (en) 1975-10-15 1976-07-28 CARRIER BODY FOR THE INTRODUCTION OF TREATMENT PRODUCTS IN LIQUID METALS

Country Status (1)

Country Link
DE (1) DE2633865A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709648A1 (en) * 1997-03-10 1998-09-17 Festo Ag & Co Crust breaking unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709648A1 (en) * 1997-03-10 1998-09-17 Festo Ag & Co Crust breaking unit

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