Mind map

Raw materials

alicia albo Tecnología 1º de ESO Spanish

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Raw materials

Definition: Producs extracted directly from nature
Types
- Natural (plants,animal..)
- Processed (Industrial processes are applied to raw material
  - Artificial (made simpler materials)
  - Syntheic (not found in nature
Properties
- Mechanical
  - Hardness
  - Mechanical resistance
  - Toughness
  - Brittless
  - Elasticity
  - Plasticity
- Thermal
  - Expansion
  - Thermal conductibity
- Enviroment
  - Toxicity
  - Environmental hazard
  - Recyclability
  - Blodegradability
Tools
- Marking
- Assembly
- Support
- Cutting and levelling
- Measurement
- Impact
Wood
- Definition: is the fibrous material that trees made of
- Types
  - Non-resious
  - Resinous
- Properties
  - Hardness
  - Thermal and electrical insulator
  - Flexibility
  - Density
  - Hygroscopicity
  - Sound conductivity
  - Spitability
  - Toughness
- Forms
  - Natural wood (ejemple strips,beams..)
  - Prefabricateed wood(ejempleit doesnt have knots or grains)
  - Commercial forms (ejemple Polywood)

Description: 1º de ESO Tecnología Mind Map on Raw materials, created by alicia albo on 19/03/2020.
Created by: alicia albo
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History: Created by alicia albo · Mar 19, 2020

Copied by alicia albo · Mar 19, 2020
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