Avancerad sökning

Visar resultat 1 - 5 av 12 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Design of breast roll retraction system : Redesign of keyway solution for positioning of breast roll in tissue machine

    M1-uppsats, Karlstads universitet

    Författare :Tobias Sjöberg; [2022]
    Nyckelord :product development; Valmet; product development process; mechanical design; produktutveckling; Valmet; produktutvecklingsprocess; konstruktion;

    Sammanfattning : This Thesis has been carried out as a final part of the Mechanical Engineering programme (180 credits) at Karlstad University during the spring semester 2022 and comprises 22.5 credits. The work is carried out on behalf of Valmet AB in Karlstad. LÄS MER

  3. 2. Product Development and Finite Element Analysis of Polyurethane Press Shoe : Produktutveckling och finit element analys av press-sko i polyuretan

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Mikael Bergström; [2021]
    Nyckelord :FEM; Finite Element Analysis; Polyurethane Casting; PUR; Hyperelaticity; ABAQUS; Casting; Shoe Press; Press Shoe; Paper Making; Paper Machines; Tissue machine;

    Sammanfattning : The press-section of a paper machine holds several different types of press rolls. One of the many press roll variants is the Valmet produced press roll, ViscoNip. This press roll utilizes an extended nip in order to increase the amount of water removed. LÄS MER

  4. 3. Further development of manufacturing method for polyurethane shoe press

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Jonathan Berg; [2021]
    Nyckelord :Polyurethane Casting; PUR; Hyperelaticity; manufacturing methods; Casting; Shoe Press; Press Shoe; Paper Making; Paper Machines; Tissue machine; Extrusion molding;

    Sammanfattning : The press-section of a paper machine holds several different types of press rolls. One of the many press roll variants is the Valmet produced press roll, ViscoNip. This press roll utilizes an extended nip in order to increase the amount of water removed. LÄS MER

  5. 4. Ytbehandling för att motverka uppbyggning : Undersökning av olika ytbehandlingsmetoder och material för applikation i en mjukpappersmaskin

    M1-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik

    Författare :Anton Klevsäter; [2017]
    Nyckelord :Mechanical Engineering; Materials science; Surface Technology; Polymers; EduPack; Materials Selection; Build-Ups; Valmet; Tissue-Machine; Maskiningenjör; Materialteknik; Ytteknik; Polymerer; EduPack; Materialval; Uppbyggningar; Valmet; Pappersmaskin;

    Sammanfattning : This exam report includes a survey of surface treatment materials and their associated surface treatment methods for application in a tissue machine commissioned by Valmet AB. The tissue machine produces 24 hours a day in a demanding environment consisting of water, heat, oils, glue, dust and various chemicals. LÄS MER

  7. 5. Experimental equipment for simulation of press nip in tissue paper machine : Prestudy and concept generation

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Erika Nygårds; [2016]
    Nyckelord :Lab-test equipment; press nip; tissue machine; simulation; paper; Lab-testmaskin; pressnyp; mjukpappersmaskin; simulering; papper;

    Sammanfattning : During manufacturing of tissue paper, large amounts of energy could be saved with an optimized press nip. In the press nip, water is pressed out of the paper and depending on both machine and paper parameters, the dewatering effect will vary. The dewatering process is however, a complex process which is not fully understood. LÄS MER