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undergraduate thesis
Postupci obrade magnezijem za proizvodnju nodularnog lijava
Sisak: University of Zagreb, Faculty of Metallurgy, 2017. urn:nbn:hr:115:824149
Kumer, Fabijan
University of Zagreb
Faculty of Metallurgy

Institutional repository: Repository of Faculty of Metallurgy University of Zagreb

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Kumer, F. (2017). Postupci obrade magnezijem za proizvodnju nodularnog lijava (Undergraduate thesis). Sisak: University of Zagreb, Faculty of Metallurgy. Retrieved from https://urn.nsk.hr/urn:nbn:hr:115:824149

Kumer, Fabijan. "Postupci obrade magnezijem za proizvodnju nodularnog lijava." Undergraduate thesis, University of Zagreb, Faculty of Metallurgy, 2017. https://urn.nsk.hr/urn:nbn:hr:115:824149

Kumer, Fabijan. "Postupci obrade magnezijem za proizvodnju nodularnog lijava." Undergraduate thesis, University of Zagreb, Faculty of Metallurgy, 2017. https://urn.nsk.hr/urn:nbn:hr:115:824149

Kumer, F. (2017). 'Postupci obrade magnezijem za proizvodnju nodularnog lijava', Undergraduate thesis, University of Zagreb, Faculty of Metallurgy, accessed 23 November 2024, https://urn.nsk.hr/urn:nbn:hr:115:824149

Kumer F. Postupci obrade magnezijem za proizvodnju nodularnog lijava [Undergraduate thesis]. Sisak: University of Zagreb, Faculty of Metallurgy; 2017 [cited 2024 November 23] Available at: https://urn.nsk.hr/urn:nbn:hr:115:824149

F. Kumer, "Postupci obrade magnezijem za proizvodnju nodularnog lijava", Undergraduate thesis, University of Zagreb, Faculty of Metallurgy, Sisak, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:115:824149

Metadata
TitlePostupci obrade magnezijem za proizvodnju nodularnog lijava
Title (english)Magnesium treatment methods for the ductile iron production
AuthorFabijan Kumer
MentorZoran Glavaš (mentor)
Committee memberStjepan Kožuh (predsjednik povjerenstva)
Committee memberZoran Glavaš (član povjerenstva)
Committee memberMartina Lovrenić - Jugović (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Metallurgy
Sisak
Defense date and country2017-09-18, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Metallurgy
Abstract
Dodatak sferoidizacijskih (nodularizacijskih) elemenata u rastaljeno željezo vjerojatno je najvažniji korak u proizvodnji nodularnog lijeva. Postoji mnogo elemenata koji mogu proizvesti sferični oblik grafita. U komercijalnoj praksi najčešće se upotrebljava magnezij. Dodaje se u rastaljeno željezo kao čisti magnezij ili kao magnezijeva legura. Magnezij i njegove legure imaju niske temperature isparavanja, zbog čega se njihov dodatak u rastaljeno željezo mora provesti s velikom pažnjom. Ovaj rad daje pregled najvažnijih nodularizacijskih elemenata (magnezij, cerij i elementi rijetkih zemalja te kalcij), najčešće korištenih nodularizatora (čisti magnezij, legure nikal-magnezij te ferosilicij-magnezij legure) i postupaka obrade magnezijem koji su se dokazali kao komercijalno najuspješniji (postupak obrade prelijevanjem nodularizatora u otvorenom loncu, „Sandwich“ postupak obrade u otvorenom loncu, postupak obrade u loncu s poklopcem, postupak obrade u loncu uz propuhivanje inertnim plinom kroz porozni čep, postupak obrade uranjanjem nodularizatora, postupak obrade punjenom žicom, postupak obrade u konvertoru, postupak obrade u kalupu i postupak obrade protjecanjem).
Abstract (english)
The addition of spheroidizing (nodularizing) elements to molten iron is probably the most important step in the production of ductile iron. There are a lot of elements that are capable to produce spheroidal form of graphite. In commercial practice, magnesium is most commonly used. It is added to molten iron as pure magnesium or magnesium alloy. Magnesium and its alloys have low vaporization temperatures and, consequently, their addition to molten iron must be done with extreme care. This paper gives a review of the most important nodularizing elements (magnesium, cerium and other rare earth elements and calcium), the most commonly used nodularizers (pure magnesium, nickel-magnesium alloys and magnesium-ferrosilicon alloys) and magnesium treatment methods that have proven to be the most commercially successful (open ladle pour-over process, sandwich open ladle treatment, tundish cover treatment, porous plug process, plunging method, cored wire treatment, converter method, in-mould treatment and flow-through process).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:115:824149
Study programmeTitle: Metallurgy; specializations in: Metallurgical Engineering, Industrial Ecology
Course: Metallurgical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2017-10-20 08:35:03