Sökning: "zinc alloy"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden zinc alloy.

  1. 1. Studie av syretillgångens inverkan på nötning av hårdmetall vid bearbetning av kopparlegeringar

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

    Författare :Julia Rosengren; [2023]
    Nyckelord :tribologi; nötning; hårdmetall; mässing;

    Sammanfattning : During the production of metal zippers, cemented carbide (CC) tools are used to cut preformed brass wire into small elements. Even though the cemented carbide is much harder than the copper alloy, it gets worn and eventually the tool must be replaced. LÄS MER

  3. 2. EXAMINATION OF MICRO-SCALE SULFIDE DISTRIBUTION FOR THE GOLD MINERALIZATION IN THE LAPPBERGET DEPOSIT, GARPENBERG MINE, SWEDEN: TOWARDS A GEOMETALLURGICAL APPROACH

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Leo Barbosa; [2021]
    Nyckelord :Gold characterization; gold as by-product; Lappberget ore; Garpenberg Mine;

    Sammanfattning : Ore characterization studies are of great importance to the mining industry, especially when dealing with precious metals by-products. It is a way towards increasing mining efficiency. LÄS MER

  4. 3. Weight reduction of a connecting fitting used for frame assembly : A design optimization at IKEA Components AB

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

    Författare :Emil Sjöqvist; David Johansson; [2019]
    Nyckelord :design; optimization; design improvement; weight reduction; design for environment; DFE; material study; 3D-scanning; reverse engineering; FEM; FEA; finite element method; strength analysis;

    Sammanfattning : Continuous improvements are an integral part for the development of everyday life. These improvements do not only ascertain financial gain but also lessening the environmental impact. LÄS MER

  5. 4. Material characterization of multi-layered Zn-alloy coatings on fasteners : Effects on corrosion resistance, electrical conductivity and friction

    Master-uppsats, KTH/Materialvetenskap

    Författare :Ante Vallien; [2018]
    Nyckelord :ZnNi; zinc alloy; multi-layered coating; electrodeposited coating; fasteners; corrosion resistance;

    Sammanfattning : Electroplated zinc-alloy coatings have been used on fasteners in the automotive industry for many years. The coating often consists of three layers: a zinc-alloy layer, a passivation layer and a sealer or top-coat. LÄS MER

  7. 5. Microstructure-corrosion interrelations in new low-lead and lead-free brass alloys

    Master-uppsats, KTH/Materialvetenskap

    Författare :Emil Stålnacke; [2017]
    Nyckelord :Brass; dezincification; annealing; detrimental phases; heat treatment; microstructure;

    Sammanfattning : In new low-lead and lead-free brass alloys, it is not understood how the corrosion properties,such as dezincification, are related to material composition as well as annealing temperatureand duration. This study aims to fill this knowledge gap by mapping sixteen annealingconditions and three different brass alloy compositions to their respective microstructure anddezincification performance. LÄS MER