Yunnan variegated copperware is a unique folk art in the Yunnan province.The key processes to produce variegated copperware are described

and the effects of alloy components

materials of cast mould and emergent and coloring agent on the variegated pattern were paid attention to.The factors influencing the variegated copperware were presented.The results demonstrate that the desirable variegated pattern can be observed with 6% Zn content in the variegated copperware.The irregular variegated pattern can be formed in sand mold casting while particle variegated pattern can be observed in the permanent mold.In addition

the variegated copperware is almost independent on the emergent and coloring agent.