Sökning: "Kemisk efterbehandling"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Kemisk efterbehandling.

  1. 1. Influence of Post-treatments on Corrosion Properties of 3D printed Metal Components for Bioprocessing Applications

    Master-uppsats, KTH/Materialvetenskap

    Författare :Leyla Koort; [2023]
    Nyckelord :PBF-LB 316L; surface post-treatments; as-built; tumbling; Hirtisation; DLyte; electropolishing; chemical milling; pitting corrosion; CPT; cyclic potentiodynamic polarisation curves; immersion test in 1M NaCl and 1M NaOH;

    Sammanfattning : Additive manufacturing (AM) has the potential to overtake the conventional production of pipe systems of stainless steel grade 316L intended for bioprocessing applications by utilising powder bed fusion laser beam (PBF-LB) technologies. However, challenges such as high surface roughness need to be overcome and corrosion properties improved to meet industry standards. LÄS MER

  3. 2. Recycling methods for glass fibre-reinforced plastic polymers : Glass fibre composites in a circular economy?

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Hanna Karlsson; [2022]
    Nyckelord :Composites; Glass; Fibre; Reinforced; Recycling; Circular economy; Circularity; Reinforcement; Plastic; Polymer; End-of-life; Reuse; Waste; Materials Chemistry; Chemistry;

    Sammanfattning : The reinforced composite industry is expanding. This raises the need for more sustainable resource use and waste management. A concept to combat both is circularity, creating a loop between the raw resources and the waste. Two important parts of circularity are recycling and reusing. LÄS MER

  4. 3. Post-processing for roughness reduction of additive manufactured polyamide 12 using a fully automated chemical vapor technique - The effect on micro and macrolevel

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Ingrid Johansson; [2020]
    Nyckelord :Chemical post-processing; PostPro3D; selective laser sintering; surface roughness; polyamide 12; Kemisk efterbehandling; PostPro3D; selektiv lasersintring; ytojämnhet; polyamid 12;

    Sammanfattning : Additive manufacturing has increased in popularity in recent years partly due to the possibilities of producing complex geometries in a rapid manner. Selective laser sintering (SLS) is a type of additive manufacturing technique that utilizes polymer powder and a layer-by-layer technique to build up the desired geometry. LÄS MER

  5. 4. Kemisk stabilisering av gruvavfall från Ljusnarsbergsfältet med mesakalk och avloppsslam : Chemical stabilization of mine waste with sewage sludge and calcium carbonate residues

    Kandidat-uppsats, Institutionen för geovetenskaper

    Författare :Linda Höckert; [2007]
    Nyckelord :gruvavfall; sulfidmalm; pyrit; oxidation; kolonntest; skaktest; utlakning; stabilisering; mesakalk; efterbehandling;

    Sammanfattning : Chemical stabilization of mine waste from Ljusnarsbergsfältet with sewage sludge and calcium carbonate residues Mine waste from Ljusnarsbergsfältet in Kopparberg, Sweden, is considered to constitute a great risk for human health and the surrounding environment. Some of the waste rock consists of sulphide minerals. LÄS MER

  7. 5. Utvärdering av anaerob behandling av hushållsspillvatten och tekniker för efterbehandling

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för geovetenskaper

    Författare :Catharina Gannholm; [2005]
    Nyckelord :UASB; wastewater treatment; Hammarby Sjöstad;

    Sammanfattning : The continuous process of urbanization results in demands on research and development for ecological and sustainable city development. Because of this, the current systems for wastewater treatment may have to be improved. LÄS MER