Sökning: "wood welding"

Hittade 5 avhandlingar innehållade orden wood welding.

  1. 1. Water resistance of Scots pine joints produced by linear friction welding

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Mojgan Vaziri; Luleå tekniska universitet.; [2011]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science - Other processing assembly; wood; wood welding; crack; CT scanning; image processing; MRI; microdensitometry; CPMAS C NMR; density; water absorption; tensile-shear strength; Teknisk materialvetenskap - Övrig bearbetning sammanfogning; Träteknik; Wood Technology;

    Sammanfattning : Wood welding is a mechanical friction process allowing the assembly of timber without any adhesives. The process consists of applying mechanical friction, under pressure, alternately to the two wood surfaces to be welded. LÄS MER

  2. 2. Surface-Densified Wood From Laboratory-Scale Research Towards a Competitive Product

    Detta är en avhandling från Luleå : Luleå University of Technology

    Författare :Benedikt Neyses; Luleå tekniska universitet.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träteknik; Wood Science and Engineering;

    Sammanfattning : For many decades, humans have been consuming more resources than the world has to offer in the long run. Increasing the use of renewable materials, such as wood, is essential if we are to achieve a sustainable use of the resources available to us. LÄS MER

  3. 3. Mechanics of Cross-Laminated Timber

    Detta är en avhandling från Luleå : Luleå University of Technology

    Författare :Dietrich Buck; Luleå tekniska universitet.; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CLT assembly; CLT manufacture; Crosslam; DIC analysis; Digital speckle photography; Full-field mechanics; Laminated wood product; Mass timber engineering; Non-contact measurement; Non-destructive; Optical measurement; Panel configuration; Strain localization; X-lam; Alternativ byggmetod; Bildkorrelation; Hållbart byggande; KL- trä; Korslimmat trä; Skjuvtöjning; Massivträ; Träkonstruktion; Träteknik; Wood Science and Engineering;

    Sammanfattning : Increasing awareness of sustainable building materials has led to interest in enhancing the structural performance of engineered wood products. Wood is a sustainable, renewable material, and the increasing use of wood in construction contributes to its sustainability. LÄS MER

  4. 4. Att samtala om texter: från träteknik och svetsteori till antikens myter Textsamtalets möjligheter som närmaste zon för läsutveckling i en klass på gymnasiets industritekniska program

    Detta är en avhandling från Stockholm : Institutionen för språkdidaktik, Stockholms universitet

    Författare :Pia Visén; Stockholms universitet.; [2015]
    Nyckelord :HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; språkdidaktik; Language Education; reading; upper secondary vocational education; text-talk; cohesion; acitivity sequences; text-movability; läsande; gymnasial yrkesutbildning; textsamtal; kohesion; aktivitetssekvenser; textrörlighet;

    Sammanfattning : This doctoral dissertation reports on results from case studies of how text-talks in a Swedish upper secondary school vocational programme, function as a zone of proximal development for reading. The aim was to investigate how text-talks function as a basis for discussion about the text content and thereby have a potential for developing understanding for the subject-specific text content in the subjects of Carpentry Technology, Welding Technology and Swedish in one class in the first year of the Industrial Technology Programme. LÄS MER

  5. 5. Isocyanates - methodology for gas and particle generation, sampling and detection

    Detta är en avhandling från Stockholm : Department of Analytical Chemistry, Stockholm University

    Författare :Daniel Gylestam; Stockholms universitet.; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Isocyanate; PUR; Dry sampler; PTR-MS; Transfer line; PPE; Environmental Chamber; Respirable Particles; Denuder Impactor; Aerosol; Particles; Impinger; air sampling; LC-MS; di-n-butylamine; DBA; ICA; MIC; HDI; TDI; IPDI; MDI; Occupational Exposure; Exposure; Occupational Health; Analytical Chemistry; analytisk kemi;

    Sammanfattning : Isocyanates are mainly used in the industry for the production of polyurethane (PUR) plastics. Workers are at risk of being exposed during the manufacturing of PUR. During thermal degradation of PUR, isocyanates are released and workers involved in hot work such as fire-fighting, welding etc. may also be exposed. LÄS MER