Patent ID: 6036584
Filing Date: 2000-03-14
Classification: B24C

Abstract:
A blast system for processing components by means of abrasive particles, comprising a hopper for abrasive particles, a mixing device formed by a mixing chamber into which an HP-air pipe issues and which in its turn issues into a blast pipe, a transport line between the hopper and the mixing chamber through which the abrasive particles are transported from the hopper to the mixing chamber, means for generating HP-air which is supplied to the mixing chamber through the HP-air pipe for obtaining a mixture of air and abrasive particles which issues from the blast pipe, and a transport mechanism for transporting the abrasive particles through the transport line, wherein the system operates at an absolute pressure P of the HP-air of between 2 and 4.5 bar, while a ratio d.sub.1 /d.sub.2 of a smallest diameter d.sub.1 of the HP-air pipe issuing into the mixing chamber to a smallest diameter d.sub.2 of the blast pipe lies between 0.6 and 0.9, while P<(13.25-(12.5(d.sub.1 /d.sub.2))).