To restrain variation of cutting performance of an abrasive water jet cutter.
According to this method for generating abrasive water jet, an opening of an abrasive throttle device 4 provided in an abrasive supply passage 7 to a nozzle device 1 of the abrasive water jet cutter is adjusted to obtain a desired abrasive supply quantity for obtaining desired cutting performance, and abrasive in an abrasive storage tank 3 is supplied through an abrasive throttle device 4 to the nozzle device 1. On the other hand, a time change of mass of abrasive in the abrasive storage tank 3 is detected according to the measurement result of a load cell 5 receiving the abrasive storage tank 3, an abrasive supply quantity per unit time in measurement is obtained from the measurement result, and an opening of a compressed air throttle device 11 in a compressed air supply passage 12 force-feeding the abrasive to the nozzle device 1 is varied to adjust the supply quantity of the abrasive to the nozzle device 1.
IZUMI KIYOSHI
ADACHI KOICHI
| JP2004261929A | 2004-09-24 | |||
| JPH0271976A | 1990-03-12 | |||
| JPH0724737A | 1995-01-27 | |||
| JP2003025228A | 2003-01-29 |