Sökning: "ovako"

Visar resultat 1 - 5 av 47 uppsatser innehållade ordet ovako.

  1. 1. Real time Optical  Character Recognition  in  steel  bars  using YOLOV5

    Master-uppsats, Blekinge Tekniska Högskola

    Författare :Monica Gattupalli; [2023]
    Nyckelord :Deep learning; Object detection; Tesseract OCR; YOLOV5; YOLOV5- obb;

    Sammanfattning : Background.Identifying the quality of the products in the manufacturing industry is a challenging task. Manufacturers use needles to print unique numbers on the products to differentiate between good and bad quality products. However, identi- fying these needle printed characters can be difficult. 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. Value of CO2 neutrality for sustainable engineering steel: A case study of Ovako AB

    Master-uppsats, Uppsala universitet/Institutionen för samhällsbyggnad och industriell teknik

    Författare :Erik Larsson; Filip Smith; [2022]
    Nyckelord :Automotive; Battery electric vehicle; Bearing; Blast furnace; Carbon border adjustment mechanism; Carbon dioxide; Electric arc furnace; Emissions trading system; Engineering steel; Green steel; Greenhouse gas; Innovation; Internal combustion engine; Life cycle analysis; Mining; Paris agreement; Science based target initiative; Steel; Sustainability; Sustainable steel; Triple bottom line;

    Sammanfattning : Steel production is today one of the most CO2-demanding activities and causes 8% of the global emissions of GHG. It is crucial for the industry to reduce its emissions radically in order to be in line with the goals of the Paris Agreement and the Science-Based Target initiative. LÄS MER

  5. 4. FEM-simulering av defekter från klippning av varmvalsad stång.

    M1-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Izak Sipinen; Martin Brostedt Dehlin; [2022]
    Nyckelord :Finite element method; Abaqus; FEM simulation; cutting defects; steel rod; Finita elementmetoden; Abaqus; FEM-simulering; klippdefekter; stålstång;

    Sammanfattning : Den världsledande stålproducenten Ovako Group AB tillverkar valsade stålstänger i sin produktion i Hällefors. De färdigvalsade stängerna klipps efter nedkylning i luft enligt kundlängd, vilket i vissa fall har visat sig resultera i defekter vid ändarna. LÄS MER

  7. 5. 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