How to prevent oxidation of copper during melting ?

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Rakesh Dhar

do it in vacuum

Ajay Mandal

How this thing is carried out at industrial level ?

Is vacuum furnace is used in industries where hundreds of tonnes of copper is melted at a time.

Hilmar R. Müller

In industrial scale a carbon containing cover like charcoal is used.

B.K. Prasad

There are some standard fluxes also sold by different manufacturers like Greaves Fosceco. Details of the suppliers and their products could be had through their Web sites. Nevertheless, the best solution could be carrying out the melting operation in an appropriate level of vacuum including induction meliing.