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JSS3: BASIC TECHNOLOGY - 1ST TERM

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  1. Materials & Processing - Timber I | Week 1
    6 Topics
    |
    1 Quiz
  2. Materials & Processing - Timber II | Week 2
    4 Topics
    |
    1 Quiz
  3. Processing of Materials - Metals | Week 3
    5 Topics
    |
    1 Quiz
  4. Processing of Clay, Ceramics and Glass | Week 4
    5 Topics
    |
    1 Quiz
  5. Methods of Producing Plastics & Rubber | Week 5
    2 Topics
    |
    1 Quiz
  6. Drawing Practice - Isometric Drawing | Week 6
    4 Topics
    |
    1 Quiz
  7. Oblique Projection | Week 7
    2 Topics
    |
    1 Quiz
  8. Orthographic Projection | Week 8
    4 Topics
    |
    1 Quiz
  9. Perspective Drawing (One - Point Perspective Drawing) | Week 9
    4 Topics
    |
    1 Quiz



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Topic Content:

  • Natural Seasoning or Air Seasoning
  • Artificial Seasoning or Kiln Seasoning
  • Reasons for Wood Seasoning
  • Calculating Moisture Content
Wood Seasoning

What is Wood Seasoning?

The process of reducing the moisture or water content of wood is called wood seasoning.

Timber, which has just been converted, is called fresh or green timber. Green timber contains a lot of water and is not suitable for engineering, or furniture work.

Since sawn timber contains some amount of water, it must be seasoned before use.

There are two methods of seasoning:

  • Natural or Air Seasoning
  • Artificial or Kiln Drying

1. Natural Seasoning or Air Seasoning:

This method of seasoning involves stacking the converted timber planks in the open air, for a period of time, and allowing them to dry naturally. They are usually done in a roofed building to keep off the rain. This method requires little attention and is relatively cheap. A disadvantage, though, is that it takes a long time to dry.

natural seasoning
Natural seasoning.

 

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