Copper heads and mould. Set of heads showing the process of copper casting. Casting is the process of using a mould to shape an object from a molten material. Copper,which is a chemical element,is a metal that melts at 1084 degrees Celsius. The mould (grey,left) is used to create a void in a casting material. Molten copper,melted in a furnace,is then poured into this void. Once the metal has set it has a green patina of copper oxide covering the surface (centre). Polishing removes this oxide to produce a shiny surface (yellow,right). Photographed in the UK. See images T810/256-259 for images showing the pouring of the molten copper into the moulds. T810/259 and T810/260 show close-ups of the furnace and mould | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Hart-Davis, Adam |
Bildgröße: | 4368 px × 2912 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |