National Repository of Grey Literature 48 records found  beginprevious37 - 46next  jump to record: Search took 0.01 seconds. 
Posouzení procesu delaminace lepených materiálů
Matušinec, Luděk
The thesis aims to explore the process of delamination on glued prism. It will be evaluated different types of wood (SM, DB) in combination with heat-treated wood (Thermowood TW). These materials will be exposed in an environment with high humidity. It will also be assessed shear strength test specimens, which will also be exposed to conditions of environment high humidity. Based on the measurement results will be evaluated different types of glue joints. They will vary in type and quantity of glue. The work is consisting of two parts. The first part deals with literature review on glueing of wood, thermal modification of wood and modern glued materials. The second part of the thesis is practical, which will be determined by the methodology of experiment and the subsequent testing. In this thesis will be displayed charts and graphs that will be evaluated at the end of work and commented for practical use in the company.
Zkoušení pevnosti spoje lamelovaných hranolů pro výrobu oken
Hála, Marek
The first part of the diploma thesis deals with modern glued lamellar prisms for the production of windows, doors and their combination. The procedure of the euro balks production is the essential part of the work. Furthermore, the thesis focuses on the characterization of the wood modification, above all thermally modified wood which is currently used in practice. Moreover, at the present new modified material known as the wood treated by acetylation (Accoya). The practical part deals with the assessment of the bonded lamellar prisms' quality and rigidity. Next examination is devoted to two types of glue (PVAC, PUR).The prisms with two directions of the fibres in the middle layer were tested. The timber from the tangential and semi-radial direction was used for the middle layers. The conclusion if the produced prisms meet the requirements and satisfy the quality class for the window and door production, is included in the discussion.
Vliv použitého lepidla na pevnost konstrukčního spojení DOMINO
Martinek, Štěpán
The aim of diploma thesis is to discover the effect of used glue on strength of Domino structural joint and on the experiment basis determine whether different thermal conditions affect the strength of glued joint and if this influencing is significant or not. Two types of samples were made for this experiment with difference in used glue. These samples were exposed to three different temperatures. Bending moment and rigidity coefficient was identified at particular joints.
Pevnost lepeného spoje vodáckých pádel
Jonáš, Martin
This work deals with the strength of the bond with paddles made of solid wood. The samples were made of solid wood blanks from spruce, alder and ash. There were used three types of adhesives in samples - polyvinyl acetate, melamine-urea-formaldehyde and epoxy resins. For these samples the effect of the species and different types of adhesive bonded joints for strength in bending was studied. Also described herein is cutting samples, bonding joints and their testing methodology. In the literature review are discussed various issues such as conditions affecting the adhesive bond, the adhesive film formation components adhesives etc., that are associated with this topic.

National Repository of Grey Literature : 48 records found   beginprevious37 - 46next  jump to record:
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