Sökning: "Gjutstål"

Hittade 5 uppsatser innehållade ordet Gjutstål.

  1. 1. High temperature corrosion in exhaust application for heavy-duty trucks

    Master-uppsats, KTH/Materialvetenskap

    Författare :Alice Moya; [2019]
    Nyckelord :high temperature corrosion; austenitic steel; cast iron; cast steel; oxidation; exhaust gas; engine; heavy-duty trucks;

    Sammanfattning : Increasing awareness of environmental protection has made both governments and the industry aim for lowering carbon dioxide emissions. For the transport industry this means increasing engine efficiency, replacing fossil fuels with bio-based fuels or full electrification. LÄS MER

  3. 2. Evaluation of material properties after laser welding on ductile cast iron

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Olivia Taivalkoski; [2019]
    Nyckelord :Laser welding; ductile cast iron;

    Sammanfattning : Scania wants to lower the weight of their trucks, including the goal to reduce the carbon dioxide emissions, and one way to do that is to use laser welding instead of fastenings.This bachelor thesis work is about laser welding of ductile cast iron, or spheroidal graphite cast iron or nodular cast iron, to QT-steels and case hardening steel and evaluation of the mechanical properties of the weld. LÄS MER

  4. 3. Kvalitetssäkring enligt Norsok M-650 vid Norrhults Stålgjuteri AB

    Uppsats för yrkesexamina på grundnivå, Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Författare :David Ulmhed; Linus Adén; [2016]
    Nyckelord :Norsok M-650; certifiering; standard; Qualification Test Record; kvalitetssäkring; gjuteri; gjuteriföretag; sandgjutning; gjutstål; stål; duplext stål;

    Sammanfattning : Syftet med denna studie är att undersöka hur Norsok M-650 kan appliceras i processen för att säkerställa kvaliteten på ett gjuteriföretag. Målet är att upptäcka eventuella avvikelser mellan företagets produktion och standarden samt att ta fram den dokumentation som krävs vid en framtida certifiering, en så kallad ”Qualification Test Record”. LÄS MER

  5. 4. Feasibility Study for a Cast Steel Guideline

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Mimmi Härdeman; [2015]
    Nyckelord :Cast steel; cast steel guideline; cast stainless steel; structural components; casting; high temperature materials; heat treatments; Gjutstål; gjutståls guideline; gjutna i rostfritt stål; strukturella komponenter; gjutning; högtemperaturmaterial; värmebehandlingar;

    Sammanfattning : The present work was conducted at Scania CV AB and has as main goal to produce a cast steel guideline. There is a great need to conduct a cast steel guideline, in order to help designers in their process to choose suitable materials and methods to produce lightweight components with higher performance. LÄS MER

  7. 5. 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