METHOD OF MAKING ROTOR EN-BLOC WITH BLADES (VERSIONS), DEVICE FOR LOCAL HEAT TREATMENT AND METHOD OF REPAIR OF BLADES OF SAID ROTOR

摘要

FIELD: mechanical engineering. SUBSTANCE: invention relates to method of making of rotor en-bloc with blades in which bush part of rotor made preferably of titanium alloy is used to which blade, preferably also made of titanium alloy, is welded. Method includes also partial ageing and cooling of bush part by welding and ageing of blade and welded joint between blade and bush part after welding. Postwelding ageing is preferably carried out using new device for local heat treatment of blade provided with envelope and several heating elements interwoven into envelope made of high temperature cloth. Method can be used for repair of rotors en-bloc with blades. EFFECT: improved quality and efficiency. 20 cl, 5 dwg