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TECHNOLOGIES U.2

Elsa Bosch Carañana Tecnología 1º de ESO Spanish

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TECHNOLOGIES U.2

PROPERTIES OF MATERIALS
- Environmental properties
- Physical properties
  - conductivities
    - electrical
    - thermal
    - sound
  - thermal expansion
- Sensory properties
  - transparent
  - translucent
  - opaque
- Mechanical properties
  - hardness
  - deformability
  - toughness
  - ductility
  - malleability
- Chemical properties
HOW WE OBTAIN WOOD
- 1. Felling
- 2. Debarking
- 3. Transport to the sawmill
- 4. Sawing for end use
- 5. Drying
- 6. Cleaning, planing and sanding
- 7. Treatments and finishes
COMMON MATERIALS
- Natural materials
- Processed materials
- Technical materials
  - woods
  - metals
  - textiles
  - plastics
  - construcction materials
- Raw materials
  - animal
  - plant
  - mineral
UNDESIRABLE PROPERTIES OF WOOD
- combustion
- rotting and insect attack
- moisture

Description: 1º de ESO Tecnología Mind Map on TECHNOLOGIES U.2, created by Elsa Bosch Carañana on 09/02/2019.
Created by: Elsa Bosch Carañana
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History: Created by Elsa Bosch Carañana · Feb 9, 2019

Copied by Elsa Bosch Carañana · Feb 9, 2019
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