METHOD OF RECONDITIONING ROTARY PUMP STAGES

摘要

FIELD: process engineering. ^ SUBSTANCE: invention relates to machine building, particularly, to rotary pump stage reconditioning. Proposed method comprises turning worn-out surfaces of impeller and diffuser, thermal spraying of antiwear powder to recover initial sizes of impeller and diffuser with due allowance for machining allowance. Antiwear layer is applied on heating impeller and diffuser to 100C - 200C. Note here that tungsten carbide is sued as said powder. ^ EFFECT: higher efficiency of repair. ^ 3 cl, 2 dwg