Laser cutters use a stream of compressed air called an “air assist” to blow away smoke and debris as they cut. This keeps the lens clean and quickly moves the hot and dirty smoke away from the work piece. An important thing for a good laser cutter to have is a coaxial air assist, ...
Specifically, during spray drying, the droplets are ejected into a drying chamber with immediate contact to high temperature air. This process causes instant water evaporation and then solute condensation, which eventually forms a compact and rigid crust for encapsulating the core materials [32]. In...