METALS

Specific Objectives

Objectives

By the end of the sub-module unit, the trainee should be able to: define the terms used in metals identify the common iron ores describe the extraction processes of ferrous and non ferrous metals explain properties and uses of the various groups of non ferrous metals explain the forming processes of metals describe the heat treatment given to steel explain the protection of ferrous and non-ferrous metals describe metal alloys used in construction describe the process of steel production from scrap metal outline laboratory tests on metals

Content

Key points

Definition of terms Common iron ores - hematite - magnetite - pyrites - limonite - siderite Extraction processes of ferrous and non ferrous metals - Types of furnaces - Ferrous metals  pig iron  cast iron  steel - Non-ferrous  copper  zinc  aluminum  tin Properties and uses on non-ferrous metals - copper - zinc - aluminium - tin Forming (shaping) of metals Heat treatment to steel - purpose - methods - uses Protection of ferrous and non-ferrous metals - anodizing - plating - frequent cleaning of surfaces - grinding - polishing - painting Metal alloys - brass - bronze - steel Process of steel production from scrap metals - scrap metal - sorting - melting - moulding - 2nd furnice - forming - final product Laboratory tests on metals - compressive/tensile strength - fire resistance

Specific Objectives

Objectives

By the end of the sub-module unit, the trainee should be able to: select metallic materials for a task carry out laboratory tests on metals used for construction

Content

Key points

Selection of metallic materials Laboratory tests on metals - compressive/tensile strength - fire resistance

Competences

Competencies

Ability to: Form metal into various shapes Harden steel by heat treatment Analyse the chemical composition of steel processed from scrap metal

Suggested Teaching/Learning Resources

Reading

Textbooks Metal Samples Field visit

Suggested Learning Activities

Template:Activies

Suggested Assessment Methods

Assessment

Oral Written tests Observation

UNIT LESSON

1. Definition of terms
2. Common iron ores
3. Extraction processes of ferrous and non ferrous metals
4. Properties and uses on non-ferrous metals
5. Forming (shaping) of metals)
6. Heat treatment to steel
7. Protection of ferrous and non-ferrous metals
8. Metal alloys
9. Process of steel production from scrap metals
10. Laboratory tests on metals