Origin Parameters of Fused Flux Grain Process Dispersion with Air

Abstract

Considerations about the fragmentation process with air of molten fluxes obtained by using raw Cuban materials for the welding process under submerged arch (S.A.W) are presented. The physical process of the flight trajectory and its validation during the granulation with air are not reported in the welding field. Therefore, the aim of this work is to establish a procedure that determines the rates and departure angles of pellets during impulsion and dispersion, in addition to contribute criteria on the frictional effect of the surrounding atmosphere on the shape of the trajectory curve of the pellets formed. These aspects may be corroborated with data obtained from the digital processing of filmed images of the fragmentation process and movement of the pellets formed. It is demonstrated that the efficiency of the procedure developed for the obtaining of the flight parameters and the non-influence of the air frictional force on the modification of the particle’s flight trajectory, allows the establishment of a methodology that makes it possible to begin studies about the fragmentation phenomena of molten fluxes by using air jets, which guarantee the necessary rank and granulometric types for an adequate performance of the welding process.

Keywords

• fundentes, obtención, granulación, atomización, dispersión de partículas