Sökning: "stål process"

Visar resultat 1 - 5 av 145 uppsatser innehållade orden stål process.

  1. 1. Återanvändande av skärslagg som råmaterial i ljusbågsugnen

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

    Författare :Robin Thun Salguero; [2020]
    Nyckelord :Electric arc furnace; Cutting residue; Residues; Briquetting; Ljusbågsugn; Skärslagg; Restprodukter; Brikettering;

    Sammanfattning : Sandvik produces about 230 000 tonnes of steel annually by melting in an electric arc furnace, where more than 90% of this steel is casted via continuous casting. When the strands are cast, these strands will be cuts to specific lengths with 2 cm thick cuts by using gas and iron powder. LÄS MER

  2. 2. State of the Art Rapport inom laserskärning vid bearbetning av aluminium och rostfritt stål

    M1-uppsats, KTH/Hållbar produktionsutveckling (ML); KTH/Hållbar produktionsutveckling (ML)

    Författare :Gabrijella Matic; Johan Larsen; [2020]
    Nyckelord :Aluminum; Effectivity; Impact of the material; Laser cutting; Optimization Stainless steel; Laserskärning; Aluminium; Rostfritt stål; Optimering; Effektivisering; Påverkan på material;

    Sammanfattning : Denna State of the Art Rapport behandlar ämnet laserskärning vid bearbetning av aluminium och rostfritt stål. Rapporten svarar på vad som finns skrivet inom aluminium respektive rostfritt stål samt skillnaderna i materialens egenskaper efter bearbetning med laserskärning från det senaste decenniet. LÄS MER

  3. 3. Techniques for Improving Weldability and Testing of Weld-bonded Joints

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Mattias Högsäter Myhr; [2020]
    Nyckelord :Adhesives; Automotive industry; Resistance Spot Welding; RSW; Weldability; Weld-bonding; Welding parameters; Fordonsindustri; Limning; Limpunktsvetsning; Motståndssvetsning; Punktsvetsning; Svetsbarhet; Svetsparametrar;

    Sammanfattning : Increased understanding of improving the weld-bonding process is essential in order for the automotive industry to constantly develop their designs and production processes for the energy-efficient vehicles of the future. The joining method of weld-bonding, a hybrid method of adhesive joining and resistance spot welding, has introduced new challenges in the manufacturing and design of auto bodies. LÄS MER

  4. 4. Experimental study of the temperature profile in an iron ore pellet during reduction using hydrogen gas

    Master-uppsats, KTH/Materialvetenskap

    Författare :Julia Brännberg Fogelström; [2020]
    Nyckelord :Iron ore; Iron oxide; Hematite pellet; Hydrogen reduction; Reduction; Intraparticle temperature; Temperature effect; Temperature profile; Järnmalm; Järnoxid; Hematitpellet; Vätgasreduktion; Reduktion; Invändig temperatur; Temperatureffekt; Temperaturprofil;

    Sammanfattning : We are facing an important challenge, to reduce the greenhouse gas emissions to make sure that we limit global warming to 2 °C, preferably 1.5 °C. Drastic changes and developing new methods may be our only chance to keep global warming under 1.5 °C. LÄS MER

  5. 5. Neutralization of acidic wastewaters with the use of landfilled Electric Arc Furnace (EAF) high-alloyed stainless-steel slag : An upscale trial of the NEUTRALSYRA project

    Master-uppsats, KTH/Materialvetenskap

    Författare :Rahul Puthucode; [2019]
    Nyckelord :Landfilled High-alloyed Electric Arc Furnace EAF slag; Slag neutralization potential; Slag recycling;

    Sammanfattning : The landfilling of slag obtained from the high alloyed Electric Arc Furnace (EAF) steel making process, constitutes an environmental treat for society as well as an economical problem for the companies producing it, due to the costs related to waste management practices. Conventional methods of slag recycling are abundantly used among the steelmaking business, but due to their particular physical properties, high- alloyed EAF slags cannot be properly valorized. LÄS MER