有色设备

To reduce environmental pollution and prevent harmful substances produced from salt additives, salt-free aluminum additives are used to replace the flux additives that contain salts. The feasibility of using the aluminum additives is analyzed from the aspects of appearance, smoke generation, yield rate and so on. Specimens are taken from ingots for analysis. The results show that the ingots casted by using aluminum additives meet the relevant standard no matter by low and high-magnification inspection or in the term of composition segregation; meanwhile, the environmental pollution is reduced and the physical and mental health of operators can be protected.