WOOD

WOOD

1. Raw materials

   • animal
   • plant
   • mineral
   • Natural materials
     • Processed materials
       • products
       • Technical material

2. Undesirable properties

   • combustion
   • moisture
   • rotting and insect attack

3. Properties of materials

   • chemical
   • environmental
   • Sensory properties
     • opaque
     • transparent
     • translucent
   • Mechanical properties
     • hardness
     • ductility
     • malleability
     • toughness
     • deformability
       • plastic
       • elastic
   • Physical properties
     • electrical conductivity
       • thermal conductivity
       • sound conductivity
     • thermal expansion

4. Is obtained by

   • 1. Felling
     • 2. Debarking
       • 3. Transport to the sawmil
         • 4. Sawing for end use
           • 5. Drying
             • 6. Cleaning, planning and sanding
               • 7. Treatments and finishes