In order to solve the problem that the alloy elements such as tin and zinc gather due to the uneven heating in the process of bronze welding

which leads to the defects such as porosity

lack of fusion and cracks

thus reducing the mechanical and service properties. Based on the analysis of the characteristics of tin zinc bronze

the weldability of materials

process parameters and operation essentials

and other factors that affect the welding

the welding operation test method is adopted. In the welding process

the cleaning and drying of welding position and welding seam layer are strictly treated

the reasonable welding process parameters are formulated

the temperature and heat input between layers and sections are strictly controlled

and the small section back welding method

hammering method are adopted. After welding

heat preservation and slow cooling and other technological measures are taken to prevent the occurrence of welding cracks

welding pores

segregation and other defects

so as to promote the weld to achieve the corresponding mechanical properties and meet the actual needs of the project.