NON-FERROUS METALS PROFESSIONAL ENGLISH IN USE FOR ENGINEERING

 

PROFESSIONAL ENGLISH IN USE FOR ENGINEERING UNIT 13. NON-FERROUS METALS

 

A Common non-ferrous engineering metals These website extracts look at the engineering applications of some non-ferrous metals – that is, metals that do not contain iron. Aluminium is widely used, often in alloy forms. An example is duralumin, an alloy used in aircraft manufacturing, which also contains copper (4.4%) and magnesium (1.5%). Aluminium can also be alloyed with titanium to produce very strong, lightweight metals. B Plating with non-ferrous metals Non-ferrous metals can be used to protect steel from corrosion by plating it – that is, covering it with a thin layer of metal. An example is galvanizing (zinc plating).   EXERCISES 13.1 Make correct sentences using one part from each column. Look at A opposite to help you. The first one has been done for you. 13.2 Complete the word groups below using the names of the metals in 13.1 above. You will need to write some names more than once. Look at A opposite to help you. 13.3 Complete the checklist for electroplating using the words in the box. Look at B opposite to help you. anode electrolyte galvanizing plated cathode electroplating negative positive ü   Check that there is sufficient (1)_________ in the bath to completely cover the component, in order to ensure that the component will subsequently be (2)_________ over its entire surface area.

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