Sökning: "Deoxidation"

Hittade 5 uppsatser innehållade ordet Deoxidation.

  1. 1. Developing a supervised machine learning model for an optimised aluminium addition based on historical data analytics, for clean steelmaking

    Master-uppsats, KTH/Materialvetenskap

    Författare :Arun Kumar Thakur; [2022]
    Nyckelord :Clean steelmaking; Data analytics; De-oxidation; Machine learning; Ren ståltillverkning; Dataanalys; Deoxidation; Maskininlärning;

    Sammanfattning : De-oxidation is an important process in clean steelmaking. Al (Aluminium) is mainly used as de-oxidant and controls the final oxygen content and impact the sulphur removal in steel. Adding optimum amount of Al is critical for steel cleanliness and to reduce cost. LÄS MER

  3. 2. Påverkan av sena tillsatser på medföljande slagg och dess viskositet i LD-processen

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Oscar Forsberg; [2020]
    Nyckelord :LD-process; slag; viscous; late additives; carried-over slag; solid particles; flowtemperatur; flowpoint; vortex inhibitor; LD-process; slagg; viskositet; sena tillsatser; medföljande slagg; fasta partiklar; flytpunkt; flyttemperatur; vortexinhibitor;

    Sammanfattning : Vid SSAB Europé i Luleå produceras höghållfaststål. För att uppnå sådan kvalité måste renligheten i stålet vara god i hela processen. Risken att få förhöjda värden av exempelvis vanadin efter LD-processen vid deoxidationssteget, då medföljande vanadininhållande slagg som återreduceras till stålet är hög. LÄS MER

  4. 3. A Methodology Study of the Evolution of the Secondary Brassmaking Process when Adding of Non-metallic Inclusions

    Master-uppsats, KTH/Materialvetenskap

    Författare :Berkan Baykal; [2016]
    Nyckelord :Hot metal; Powder; Kinetic;

    Sammanfattning : Previously most of the research focusing on non-metallic inclusions additions have focused on Fealloys. The presence of inclusions has a great effect on the material properties of Fe-alloy. Brass (Cu-Zn) is a germicidal material which has been widely used for especially drinking water applications. LÄS MER

  5. 4. Kontrollerad gjutprocess för renare stål

    Kandidat-uppsats, Högskolan i Jönköping/JTH, Maskinteknik

    Författare :Fredrik Beckius; Kevin Hartelius; [2014]
    Nyckelord :Steel; Casting; Inclusions; Oxygen level; Stål; Gjutning; Inneslutningar; Syrehalt;

    Sammanfattning : In a multi-year project at Swerea Swecast AB studies on influence of dissolved gas on inclusions have been made. The knowledge about these parameters could be used to increase the quality of the final steel casting. The purpose of this thesis was to closer examine the impact of the oxygen level on inclusions. LÄS MER

  7. 5. CLEANLINESS ASSESSMENT OF STEEL BARS PRODUCED FROM A HIGH FREQUENCY INDUCTION FURNACE

    Master-uppsats, KTH/Tillämpad processmetallurgi

    Författare :Frank Hayford; [2011]
    Nyckelord :HIGH FREQUENCY INDUCTION FURNACE; NON METALLIC INCLUSION; INCLUSION ASSESSMENT; DEOXIDATION; CALCIUM TREATMENT;

    Sammanfattning : To stay competitive in the steel industry, steelmakers are utilizing different production methods to reduce production cost without compromising on the quality of their products. In steelmaking, the production process plays a significant role on the steel cleanliness. LÄS MER