| 摘要 |
FIELD: equipment for cleaning castings, forgings, rolled pieces by means of shot jets. ^ SUBSTANCE: on end surface of one disc of impeller there are key grooves arranged symmetrically relative to their rotation axis and designed for engaging with rectangular protrusions of boss also arranged symmetrically relative to rotation axis. ^ EFFECT: simplified accelerated procedure for mounting-dismounting impeller of turbine. ^ 2 dwg |
