Plástic injection
In engineering, injection molding is a semi-continuous process that involves injecting a liquid polymer into a closed mold under pressure and cold, in that mold the material solidifies, starting to crystallize. The pice or final part is obtained by opening the mold and removing the molded part from the cavity.
Plástic blowing
Blow molding is a process used to manufacture hollow plastic parts thanks to the expansion of the material. This is achieved by means of the pressure exerted by the air on the walls of the preform, whether it is injection-blowing, or the parison, if we speak of extrusion-blown.
