DE1926404B1 - Process for making alloy briquettes - Google Patents

Process for making alloy briquettes

Info

Publication number
DE1926404B1
DE1926404B1 DE19691926404 DE1926404A DE1926404B1 DE 1926404 B1 DE1926404 B1 DE 1926404B1 DE 19691926404 DE19691926404 DE 19691926404 DE 1926404 A DE1926404 A DE 1926404A DE 1926404 B1 DE1926404 B1 DE 1926404B1
Authority
DE
Germany
Prior art keywords
alloy
fine
briquettes
acrylic acid
melt
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.)
Pending
Application number
DE19691926404
Other languages
German (de)
Inventor
Kudielka Geb Artner D Elfriede
Heinrich Schmitz
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.)
Kloeckner and Co SE
Original Assignee
Kloeckner and Co SE
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 Kloeckner and Co SE filed Critical Kloeckner and Co SE
Priority to DE19691926404 priority Critical patent/DE1926404B1/en
Priority to GB2349970A priority patent/GB1275336A/en
Priority to SE707970A priority patent/SE352108B/xx
Priority to FR7018675A priority patent/FR2048676A5/fr
Publication of DE1926404B1 publication Critical patent/DE1926404B1/en
Pending 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/076—Use of slags or fluxes as treating agents
    • 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
    • C21C7/0006—Adding metallic additives
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/003—Making ferrous alloys making amorphous alloys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Herstellen kunststoffgebundener Legierungsbriketts für Eisen-, insbesondere Stahlschmelzen. Wesentlich für die Brauchbarkeit von Legierungsbriketts ist ein aschefreies Bindemittel, das möglichst nur in geringen Mengen dem Legierungspulver zugesetzt werden muß, um Verunreinigungen der Schmelze zu vermeiden.The invention relates to a method for producing plastic-bonded alloy briquettes for Iron, especially steel melts. Essential for the usefulness of alloy briquettes is a Ash-free binder, which is only added to the alloy powder in small amounts, if possible must be in order to avoid contamination of the melt.

Der Erfindung liegt die Aufgabe zugrunde, ein Legierungsbrikett zu schaffen, das dieser Forderung genügt und daher die Verarbeitung feinkörniger Legierungspulver erlaubt.The invention is based on the object of creating an alloy briquette that meets this requirement is sufficient and therefore allows the processing of fine-grain alloy powders.

Diese Aufgabe findet ihre Lösung nach der Erfindung dadurch, daß eine feinkörnige Ferrolegierung mit einer wäßrigen Lösung- einer hochpolymeren Acrylsäure vermischt und nach dem Pressen warmausgehärtet wird. Die Acrylsäure besitzt eine geringe Viskosität und gute Benetzbarkeit. Da die Acrylsäure aschefrei verbrennt, kann es zu keiner Verunreinigung der behandelten Schmelze kommen. Ferner besitzt dieser Kunststoff den Vorteil, daß er bei der Zugabe der Legierungsbriketts zu der Schmelze vergast, so daß mit der Legierungszugabe gleichzeitig die Schmelze durchspült wird. Dies führt zu einer guten Durchmischung der Schmelze und bewirkt ein Herausspülen in der Schmelze gelöster Gase oder dort befindlicher Oxyde.This object is achieved according to the invention in that a fine-grain ferroalloy mixed with an aqueous solution of a high-polymer acrylic acid and heat-cured after pressing will. Acrylic acid has a low viscosity and good wettability. As the acrylic acid If it burns ash-free, the treated melt cannot be contaminated. Also owns this plastic has the advantage that it gasifies when the alloy briquettes are added to the melt, so that the melt is flushed through at the same time as the alloy is added. This leads to a good one Mixing of the melt and effects a flushing out of dissolved gases in the melt or there located oxides.

Für ein solches Legierungsbrikett lassen sich ohne weiteres feinste Brechstäbe mit einer Korngröße unter 4 mm als Legierungsbestandteil verwenden. In der Form solcher Legierungsbriketts ist eine staubfreie Zugabe feinkörnigen Materials möglich. Außerdem wird wegen der feinen Verteilung die Löslichkeit der Legierungsbestandteile im Stahl erheblich verbessert. Die Verwendung von Acrylsäure als Bindemittel bietet dabei den Vorteil, daß die Brechstäube nicht mehr eingeschmolzen zu werden brauchen. Es werden dadurch Energiekosten eingespart und der Ofengang verbessert. Die gute Benetzbarkeit der Acrylsäure ist der Grund dafür, daß der Bindemittelzusatz maximal 1 Gewichtsprozent, vorzugsweise 0,5 %, Acrylsäure beträgt.For such an alloy briquette, extremely fine crowbars with a grain size can easily be used Use less than 4 mm as an alloy component. In the form of such alloy briquettes is one Dust-free addition of fine-grained material possible. In addition, because of the fine distribution, the The solubility of the alloy components in the steel is significantly improved. The use of acrylic acid as a binder has the advantage that the crushed dust no longer has to be melted down to need. This saves energy costs and improves the oven run. The good wettability of acrylic acid is the reason that the binder additive is a maximum of 1 percent by weight, preferably 0.5%, acrylic acid.

Claims (3)

*5 Patentansprüche:* 5 claims: 1. Verfahren zum Herstellen von Legierungsbriketts für Eisen-, insbesondere Stahlschmelzen, dadurch gekennzeichnet, daß eine fein-1. Process for the production of alloy briquettes for iron, in particular steel melts, characterized in that a fine ao körnige Ferrolegierung mit einer wäßrigen Lösung einer hochpolymeren Acrylsäure gemischt und nach dem Pressen warmausgehärtet wird.ao granular ferroalloy is mixed with an aqueous solution of a high-polymer acrylic acid and heat-cured after pressing. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der feinkörnigen Ferrolegierung ein Bindemittelzusatz von maximal 1 °/o beigegeben wird.2. The method according to claim 1, characterized in that the fine-grained ferro alloy a binder addition of a maximum of 1% is added. 3. Verfahren nach Anspruch 1 oder 2, gekennzeichnet durch di& Verwendung feinkörniger Brechabfälle von Ferrolegierungen.3. The method according to claim 1 or 2, characterized by di & use of fine-grained Crushed ferrous alloys.
DE19691926404 1969-05-23 1969-05-23 Process for making alloy briquettes Pending DE1926404B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19691926404 DE1926404B1 (en) 1969-05-23 1969-05-23 Process for making alloy briquettes
GB2349970A GB1275336A (en) 1969-05-23 1970-05-14 Manufacture of alloying briquettes
SE707970A SE352108B (en) 1969-05-23 1970-05-22
FR7018675A FR2048676A5 (en) 1969-05-23 1970-05-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691926404 DE1926404B1 (en) 1969-05-23 1969-05-23 Process for making alloy briquettes

Publications (1)

Publication Number Publication Date
DE1926404B1 true DE1926404B1 (en) 1970-07-09

Family

ID=5735025

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691926404 Pending DE1926404B1 (en) 1969-05-23 1969-05-23 Process for making alloy briquettes

Country Status (4)

Country Link
DE (1) DE1926404B1 (en)
FR (1) FR2048676A5 (en)
GB (1) GB1275336A (en)
SE (1) SE352108B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666820A1 (en) * 1990-09-14 1992-03-20 In Jin Lee Composition for the manufacture of a tool steel
EP1046721A1 (en) * 1999-04-20 2000-10-25 Franz Howorka Method of consolidating powdery alloying additives for steelmaking

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5194402A (en) * 1975-02-18 1976-08-19
GB2117411A (en) * 1982-03-29 1983-10-12 British Steel Corp Metallurgical additive briquettes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666820A1 (en) * 1990-09-14 1992-03-20 In Jin Lee Composition for the manufacture of a tool steel
EP1046721A1 (en) * 1999-04-20 2000-10-25 Franz Howorka Method of consolidating powdery alloying additives for steelmaking

Also Published As

Publication number Publication date
GB1275336A (en) 1972-05-24
FR2048676A5 (en) 1971-03-19
SE352108B (en) 1972-12-18

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