Device for continuous eroding of solid material by fluid jets

摘要

A cap nozzle(3,4,7) is constructed for the forming of a hollow jet by a type of jet core which accompanies the fluid jet and is at least partially enclosed by the fluid over the whole length of the fluid jet. At one end of the cap nozzle there may be one or more connecting mixing chambers which feeds jet medium and/or an explosive substance by means of a pipe connection(11) located on the circumference.