Sökning: "Oil quenching"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Oil quenching.

  1. 1. Development and analysis of fire suppresion during steel quenching : Three paths of analysis of fire- and smoke suppresion during steel hardening processes

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Alex Eidersjö; [2023]
    Nyckelord :Product development; Produktutveckling;

    Sammanfattning : This thesis looks at an issue of excessive fire and smoke development during open tank quenching. The quenching in question being done as part of a hardening process of steel springs during manufacturing at Lesjöfors Fjädrar AB. The thesis was written under supervision of of Rejlers Sweden AB. LÄS MER

  3. 2. Restspänningsanalys av sätthärdat stål

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

    Författare :Joel Lehtinen; William Apelqvist; [2020]
    Nyckelord :16CrMnS5; case-hardening; residual stress; LPC; 16CrMnS5; sätthärdning; restspänning; LPC;

    Sammanfattning : Denna rapport behandlar restspänning i stålet 16MnCrS5 som uppkommer efter sätthärdning med traditionell uppkolning med släckning i olja och lågtrycksuppkolning med släckning i gas. Rapporten har ett fokus på restspänningar men behandlar även materialegenskaper generellt. LÄS MER

  4. 3. Fast Pyrolysis of Biomass in a Fluidized Bed for Production of Bio-oil and Upgradation by Ex-situ Catalytic Bed

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Samina Gulshan; [2019]
    Nyckelord :;

    Sammanfattning : Production of bio-oil from biomass is now becoming best substitute of fossil fuels in the transportation sector. Pyrolysis is one of the most promising route to produce bio-oil from biomass.  However, bio-oil needs to be upgraded due to presence of high percentage of oxygenated compounds. LÄS MER

  5. 4. Modelling of Biomass Pyrolysis with Ex-situ Catalytic Upgrading for Bio-crude Production

    Master-uppsats, KTH/Materialvetenskap

    Författare :Febryana Nugrahany; [2018]
    Nyckelord :ex-situ catalytic upgrading; slow pyrolysis; screw reactor; fixed bed catalytic reactor; process design;

    Sammanfattning : This study presents a techno-economic assessment of slow pyrolysis of pine sawdust continued by ex-situ catalytic upgrading. The overall process consists of six sections: feed drying, pyrolysis, vapor filtration, ex-situ catalytic upgrading, vapor quenching, and combustion of permanent gas. LÄS MER

  7. 5. Distortion Analysis of Low Pressure Carburized Components : A heat treatment distortion comparison of transmission gear components for truck and automobile.

    Master-uppsats, KTH/Materialvetenskap

    Författare :Frisk Robin; [2016]
    Nyckelord :Low pressure carburization; high pressure gas quenching; oil quenching; distortion; shape change; gear wheel; crown wheel; truck; automobile;

    Sammanfattning : During the last 10 years, low pressure carburizing and high pressure gas quenching has become more popular since it is a “new” process and researchers reports that the distortion characteristics gained from these processes is improved in relation to conventional processes. The aim of this work was to investigate the distortions gained from three different heat treatment processes on main shaft gears and crown wheels. LÄS MER