Background knowledge
What is bronze?
Bronze is a alloy/composition of circa 90% copper and 9% tin, as well as a bit of lead, silica and manganese.
- Bronze in high antiquity
- Bronze in middle ages
- Bronze in modern times
A little description of creating a bronze skulpture (lost-wax-technique):
A gypsum mould of the clay skulpture is to build and thereby it sometimes happens that a ten-part mould is needed. Into the gypsum mould wax is to be inserted and after the cooling down process of the wax-positive it is to be unhinged. The wax-positiv you have to complete with the sprue funnel/down-gate, the sprue pipes and the air pipes.
This construct is to be inserted into a gypsum-schamotte-mixture what is to be burned in a special ofen with 800°C
Thereby and during this time the wax will evaporate.
Into the now originated negativ-mould is the nearly 1200°C heated up liquid bronze to be casted.
After the cooling-down process of the bronze the gypsum-schamotte-mould is to be smashed for achieving the original bronze skulpture as the "bronze-positive".
Because of this technologie every skulpture is a "unique".
