PL444026A1 - Sposób modyfikacji ciekłej stali borem poprzez zastosowanie złomu magnesów neodymowych - Google Patents

Sposób modyfikacji ciekłej stali borem poprzez zastosowanie złomu magnesów neodymowych

Info

Publication number
PL444026A1
PL444026A1 PL444026A PL44402623A PL444026A1 PL 444026 A1 PL444026 A1 PL 444026A1 PL 444026 A PL444026 A PL 444026A PL 44402623 A PL44402623 A PL 44402623A PL 444026 A1 PL444026 A1 PL 444026A1
Authority
PL
Poland
Prior art keywords
boron
liquid steel
steel
scrap
neodymium magnet
Prior art date
Application number
PL444026A
Other languages
English (en)
Inventor
Grzegorz Tęcza
Barbara Kalandyk
Renata Zapała
Sebastian Sobula
Original Assignee
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
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 Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie filed Critical Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Priority to PL444026A priority Critical patent/PL444026A1/pl
Priority to EP23172987.2A priority patent/EP4428255A1/en
Publication of PL444026A1 publication Critical patent/PL444026A1/pl

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
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • 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
    • 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
    • C21C7/0025—Adding carbon material
    • 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
    • C21C7/06—Deoxidising, e.g. killing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • C22C33/06—Making ferrous alloys by melting using master alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered

Landscapes

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

Abstract

Przedmiotem zgłoszenia jest sposób modyfikacji ciekłej stali borem, charakteryzujący się tym, że do modyfikacji ciekłej stali borem wykorzystuje się złom magnesów neodymowych Fe-Nd-B, w ten sposób, że po roztopieniu wsadu ze złomu stali i/lub staliwa, do kąpieli metalowej o temperaturze co najmniej 1450°C, po wcześniejszym uzupełnieniu składu chemicznego i odtlenieniu kąpieli metalowej, wprowadza się złom magnesów neodymowych Fe-Nd-B i otrzymuje się modyfikowaną borem stal na odlewy.
PL444026A 2023-03-09 2023-03-09 Sposób modyfikacji ciekłej stali borem poprzez zastosowanie złomu magnesów neodymowych PL444026A1 (pl)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL444026A PL444026A1 (pl) 2023-03-09 2023-03-09 Sposób modyfikacji ciekłej stali borem poprzez zastosowanie złomu magnesów neodymowych
EP23172987.2A EP4428255A1 (en) 2023-03-09 2023-05-12 A method of modifying liquid steel with boron by using scrap ferro-neodymium-boron magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL444026A PL444026A1 (pl) 2023-03-09 2023-03-09 Sposób modyfikacji ciekłej stali borem poprzez zastosowanie złomu magnesów neodymowych

Publications (1)

Publication Number Publication Date
PL444026A1 true PL444026A1 (pl) 2024-09-16

Family

ID=87047650

Family Applications (1)

Application Number Title Priority Date Filing Date
PL444026A PL444026A1 (pl) 2023-03-09 2023-03-09 Sposób modyfikacji ciekłej stali borem poprzez zastosowanie złomu magnesów neodymowych

Country Status (2)

Country Link
EP (1) EP4428255A1 (pl)
PL (1) PL444026A1 (pl)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101580913A (zh) * 2009-04-02 2009-11-18 天津市立鑫晟精细铸造有限公司 高铬铸铁复合孕育剂及其制备方法和应用

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101580913A (zh) * 2009-04-02 2009-11-18 天津市立鑫晟精细铸造有限公司 高铬铸铁复合孕育剂及其制备方法和应用

Also Published As

Publication number Publication date
EP4428255A1 (en) 2024-09-11

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