Sökning: "hofors"

Visar resultat 1 - 5 av 46 uppsatser innehållade ordet hofors.

  1. 1. Cultivating Resilient Local Food Systems: Identifying opportunities and strategies for sustainable public procurement

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Madison Sherwood-Walter; [2023]
    Nyckelord :Sustainable Development; Local Food Systems; Public Procurement; Innovation; Agricultural Policy; Rural Development;

    Sammanfattning : The industrialization of the global food system has drastically altered agricultural practices, transitioning from small-scale, subsistence farming to large-scale, transnational supply chains dominated by agribusinesses. While this shift has increased productivity, it has led to environmental degradation, economic inequity, and loss of traditional agricultural knowledge. LÄS MER

  3. 2. Construction and Evaluation of a Numerical Model for Heat Transfer in a Ladle During Pre-heating : A Finite Volume Approach to the Diffusion Equation using Julia

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Gustaf Bjurstam; [2023]
    Nyckelord :Finite Volume Method; FVM; Diffusion equation; Ladle; Pre-heating; Baking; Heat equation; Heat transfer; Finita Volymmetoden; FVM; Diffusionsekvationen; Skänk; Förvärmning; Värmeledningsekvationen; Värmeledning;

    Sammanfattning : Heat transfer is key to understanding many processes in engineering. At a steel mill heat transfer is absolutely crucial to understanding most of the processes. One such a process is the pre-heating of a freshly relined ladle. LÄS MER

  4. 3. Air Cooling Analysis of Forged Bearing Steels

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

    Författare :Mattias Sörlander; [2022]
    Nyckelord :Material; Bearing steel; Cooling;

    Sammanfattning : This thesis work was done in cooperation with Ovako Sweden AB in Hofors to better understand and improve cracking-related problems in bearing ring production and cooling after forging in particular. This goal was achieved by doing a literature search and executing cooling experiments in live production. LÄS MER

  5. 4. Method to assess machinability of engineering steels using coated carbide tools

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

    Författare :Petra Hedberg; [2021]
    Nyckelord :Machinability; tool wear; coated carbide; non-metallic inclusions; Ca-treated; steel; 42CrMo4;

    Sammanfattning : In this master thesis, performed at Ovako Group R&D (Hofors) a new machining test method for ranking heats of calcium-treated steels, M-Steels, has been proposed.  A total of six different heats of 42CrMo4-M steel in the quenched-and-tempered (Q+T) condition were tested. LÄS MER

  7. 5. Puckelglödning : En alternativ mjukglödgningsprocess

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Mineralteknik och metallurgi

    Författare :Robert Spector; [2019]
    Nyckelord :;

    Sammanfattning : Mjukglödgning av kullagerstål är en förutsättning för att kunna vidareförädla stålet. Processen är idag väldigt tidskrävande vilket gjort den till en flaskhals i produktionen. LÄS MER