PROTECTION OF STEAM TURBINE BLADES AGAINST STEAM DROP EROSION

摘要

FIELD: process engineering.SUBSTANCE: invention relates to protection of steam turbine blades against erosion. Proposed process comprises application of protective coating on the blade. Coating is applied by laser surfacing. Laser head is displaced at the rate of linear interpolation Vnot over 0.05 m/s at laser radiation power making 800-1200 W.EFFECT: hardened ply of 1/3 length of the blade root at sufficient aerodynamics.2 dwg