AT55515B - Process for the production of cast iron by melting down briquetted iron filings. - Google Patents

Process for the production of cast iron by melting down briquetted iron filings.

Info

Publication number
AT55515B
AT55515B AT55515DA AT55515B AT 55515 B AT55515 B AT 55515B AT 55515D A AT55515D A AT 55515DA AT 55515 B AT55515 B AT 55515B
Authority
AT
Austria
Prior art keywords
production
iron
cast iron
briquetted
melting down
Prior art date
Application number
Other languages
German (de)
Inventor
Ludwig Weisz
Original Assignee
Ludwig Weisz
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 Ludwig Weisz filed Critical Ludwig Weisz
Application granted granted Critical
Publication of AT55515B publication Critical patent/AT55515B/en

Links

Landscapes

  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 

 <Desc/Clms Page number 2> 

   Manganuperoxyd   oder Magnesia oder Schlemmkreide zugegeben wurde. Dabei dient das Wasserglas gleichzeitig als schlackenbildendes Mittel und wirkt infolge seines   Alkaligehal1es   rostschützend, was deshalb von Bedeutung ist, weil die zu verarbeitenden Späne nie rostfrei sind   und die schädlichen   Wirkungen des Oxydes bei einem Qualitätsgusseisen sehr scharf hervortreten, 
 EMI2.1 
 



   Das so erhaltene   Gemisch   wird nun in geeigneten Pressen zu   Formstücken   gepresst, die dann nach erfolgtem Trocknen im Kupolofen mit gewöhnlichem Roheisen vermischt eingeschmolzen werden. 



   Dabei kann die Menge der benützten   Stahlbriketts   bis   50% und noch   mehr der Charge betragen; das erhaltene Gusseisen ist umso reiner bzw. enthält umso weniger Schwefel und Phosphor, je grössere Brikettmengen verwendet werden. 



   Bei Versuchen mit   Stahlbriketts,   denen in der beschriebenen Weise 1 . Holzkohlenpulver. einem Siliziumgehalt von   0'25%   der Briketts entsprechende Menge von Ferrosilizium und   t"o   Kieselsäure (Sand) zugegeben wurde, ergibt sich, dass bei steigendem Zusatz von Stahlbriketten der Kohlenstoff- und Siliziumgehalt des Produktes wesentlich ansteigt, während der Gehalt an   : hwefel, Phosphor und Mangan sinkt, Bei diesen Versuchen wurde stets das gleiche Roheisen verwendet.   



   Kokillengiisse aus Gusseisen, das aus   3000   Stahl enthaltender Charge   erschmolzen wurde.     waren) rn ganzen Querschnitt vollkommen grau   und zeigten keine harte Kruste. 



   In manchen Fällen werden den Briketts auch andere Zuschläge, wie Ferromangan und dgI.. einverleibt, um so durch Bildung einer manganhaltigen Schlacke das Entschwefeln des Roheisens zu bewirken.



   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
 
 EMI1.3
 

 <Desc / Clms Page number 2>

   Manganese peroxide or magnesia or chalk was added. At the same time, the water glass serves as a slag-forming agent and, due to its alkali content, has a rust-protecting effect, which is important because the chips to be processed are never rust-free and the harmful effects of the oxide come out very sharply with a quality cast iron.
 EMI2.1
 



   The mixture obtained in this way is then pressed into shaped pieces in suitable presses which, after drying, are then melted in a cupola, mixed with ordinary pig iron.



   The amount of steel briquettes used can be up to 50% and even more of the batch; the resulting cast iron is the purer or contains less sulfur and phosphorus, the larger the amount of briquette used.



   In tests with steel briquettes, which in the manner described 1. Charcoal powder. a silicon content of 0'25% of the briquettes corresponding amount of ferrosilicon and t "o silica (sand) was added, the result is that with increasing addition of steel briquettes the carbon and silicon content of the product increases significantly, while the content of: Phosphorus and manganese decrease. In these experiments the same pig iron was always used.



   Chill casting made of cast iron, which was melted from a batch containing 3000 steel. were completely gray across the entire cross-section and showed no hard crust.



   In some cases other additives, such as ferromanganese and the like, are also incorporated into the briquettes in order to effect desulphurisation of the pig iron by forming a manganese-containing slag.

 

Claims (1)

PATENT-ANSPRUCH Verfahren zur Herstellung von Gusseisen durch Einschmelzen von brikettierten Eisenspänen. EMI2.2 PATENT CLAIM Process for the production of cast iron by melting down briquetted iron filings. EMI2.2
AT55515D 1910-01-20 1910-01-20 Process for the production of cast iron by melting down briquetted iron filings. AT55515B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT55515T 1910-01-20

Publications (1)

Publication Number Publication Date
AT55515B true AT55515B (en) 1912-09-25

Family

ID=3577015

Family Applications (1)

Application Number Title Priority Date Filing Date
AT55515D AT55515B (en) 1910-01-20 1910-01-20 Process for the production of cast iron by melting down briquetted iron filings.

Country Status (1)

Country Link
AT (1) AT55515B (en)

Similar Documents

Publication Publication Date Title
DE1299670B (en) Additive to cast iron melts for desulfurization and spheroidal graphite formation
AT55515B (en) Process for the production of cast iron by melting down briquetted iron filings.
DE2612500C3 (en) Reducing agents for steel production
DE1955869A1 (en) Slag former for steel production and process for the production of this slag former
DE3435542A1 (en) METHOD FOR THE CONTINUOUS PRODUCTION OF COMPLEX FERROALLOYS ON A SILICON BASE
DE202014100884U1 (en) Slag conditioner for desulfurization in secondary metallurgy of steel
AT164487B (en) Process for the production of molybdenum-containing iron alloys and alloying agents suitable for this
DE1284433B (en) Master alloy on the basis of Fe-Si-Ca for the production of cast iron with spheroidal graphite
DE963061C (en) Process for producing a fine graphitic, low-carbon, silicon-containing, low-phosphorus and low-sulfur pig iron
AT166214B (en) Mixture for use as an additive in the treatment of molten ferrous metal
AT149667B (en) Process for the production of cast iron and malleable cast iron using briquetted ferro alloys.
DE630683C (en) Process for the simultaneous production of pig iron and Portland cement
AT149970B (en) Process for the production of titanium steels and steels made thereafter for various purposes.
DE944376C (en) Process for the dephosphorization of steel melts
US1951633A (en) Oxidizing briquette
DE2658315C2 (en) Reducing agents for steel production
AT97896B (en) Process for the production of tungsten alloys.
AT100997B (en) Procedure for cleaning chrome iron alloys.
DE674261C (en) Process for the production of silicon alloys
DE898449C (en) Process for the production of chromium-alloyed steels in the basic Siemens-Martin furnace
AT287761B (en) Process for the production of cast iron suitable for permanent mold casting
DE1022806B (en) Process for the production of silicon of increased purity or its alloys with heavy metals
AT105337B (en) Method of incorporating manganese into iron alloys in the form of silicon-manganese-iron alloys.
DE2206970C3 (en) Slagging agents
AT95618B (en) Desulfurizing agents for iron baths.