Results 21 to 30 of about 3,020 (201)

Interface microstructure development during wood welding

open access: yes, 2008
Wood welding using linear friction is a technique that has been developed in the past five years. The goal of this study was to analyze the microstructure development in the interphase enabling the wood-to-wood adhesion without any adhesive. Chemical and
Pizzi, A.   +3 more
core   +2 more sources

Welding of wood in the presence of wollastonite

open access: yesBioResources, 2020
The use of wollastonite as a natural additive for the welding of Scots pine improved the water resistance and shear strength of the welded joint. The X-ray computed tomography images revealed that the welding of Scots pine with wollastonite could postpone crack formation in the welded joints.
Mojgan Vaziri   +2 more
openaire   +1 more source

Physical and calorific properties of wheat straw briquettes and pellets [PDF]

open access: yesMATEC Web of Conferences, 2019
Wheat straw briquettes are high performance combustible products obtained by densification from the wheat straw biomass without the use of additional adhesives or additives. The purpose of the paper is to analyze and to detail the physical properties (SR
Spirchez Cosmin   +3 more
doaj   +1 more source

Welding of thermally modified wood and thermal modification of the welded wood: Effects on the shear strength under climatic conditions [PDF]

open access: yesBioResources, 2021
This work investigated how thermal modification affects the shear strength of welded joints under different climatic conditions. The order of the thermal modification, before or after the welding, was investigated for its effect on the shear strength of the welded wood. Two groups of thermally modified specimens were prepared in a laboratory kiln under
Vaziri, Mojgan, Sandberg, Dick
openaire   +2 more sources

Time trends in occupational exposure to chemicals in Sweden: proportion exposed, distribution across demographic and labor market strata, and exposure levels

open access: yesScandinavian Journal of Work, Environment & Health, 2022
OBJECTIVE: This study investigated time trends in occupational exposure to various chemicals in Sweden and the distribution across demographic and labor market sectors.
Per Gustavsson   +7 more
doaj   +1 more source

Evaluation of the interface of eucalyptus specimens welded by rotary friction

open access: yesMaderas: Ciencia y Tecnología, 2023
Rotary friction welding produces joints by inserting wood dowels, with a specific rotation and feed rate, into pre-drilled holes made in wood substrates.
Ana Carolina Costa Viana   +2 more
doaj   +1 more source

Influence of Biological Pretreatment of Wooden Dowels on Strength of Rotary Welded Joints

open access: yesBioResources, 2023
Welding wood achieves joints whose strength is comparable with the strength of glued joints. When welding, the top of the dowel is not welded because of the lack of melted lignin.
Ivica Župčić   +2 more
doaj   +2 more sources

Mechanical Properties of Small Boat Construction from HDPE Blue Drum Scrap [PDF]

open access: yesTransNav, 2022
This paper discusses the mechanical properties of alternative wood substitute materials in the construction of small boats (jukung/cadik type). Jukung/cadik boat as a small fishing boat with a length overall 6,400 m, design beam 1,530 m, design draft 0 ...
Mohd Ridwan   +4 more
doaj   +1 more source

Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative

open access: yesMaderas: Ciencia y Tecnología, 2021
Environmentally friendly processes are of great interest and considerably needed due to the worldwide problem of pollution. Linear vibration welding of timber structural elements provides new opportunities to potentially achieve structural joints ...
Mustafa Zor, Ahmet Can
doaj  

Flexural Properties of Wooden Nail Friction Welding of Laminated Timber

open access: yesBioResources, 2022
The properties of single shear specimens connected by wooden nail frictional welding and twist nails were studied. The single shear properties of the specimens connected by wooden nail welding were lower than that of the twist nail specimens.
Xudong Zhu   +9 more
doaj   +2 more sources

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