Abstract
The welding electrode and flux for repairing in bronze casting has been researched. The results obtained are as following.
(1) Bare electrode can not be used to eleotric welding in bronze castings.
(2) Composition of the moat suitable flux is following :
SiO2% 40-50, NaOH% 20-30, CaCO3% 20-40.
(3) The mechanical strength and corrosion resistance of weld joints were examined. As the results of these testingsi we found that the best welding electrode for bronze castings repair using above mentioned flux has following composition :
Cu% 84, Sn% 10, Zn% 6.
