METHOD OF MANUFACTURE OF COMPOSITE LARGE-SIZED BLADES

FIELD: aeronautical engineering; methods of manufacture of propeller blades from composite materials with carbon-filled filler for helicopters, wind-driven electric plants and cooling tower blades of circulating water systems. SUBSTANCE: proposed method includes placing blades in mold for polymeriza...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	PODGORNOVA N.V, ZEVIG G.V, DRJUCHENKO V.A, KIRILLOV A.G
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	FIELD: aeronautical engineering; methods of manufacture of propeller blades from composite materials with carbon-filled filler for helicopters, wind-driven electric plants and cooling tower blades of circulating water systems. SUBSTANCE: proposed method includes placing blades in mold for polymerization. When blade stacks are placed in mold, evacuation bags are laid in blade passages. After closing of wooden clamps, excessive pressure is delivered to molding chambers. Polymerization of blade is performed under action of excessive pressure of 0.5 kgf/sq cm and pressure of autoclave both inside passage due to tightness of molding chambers and outside due to excessive pressure in autoclave cavity. Vacuum is formed in blade body by means of evacuation bags. Polymerization is performed in vacuum. EFFECT: low cost of process; improved quality of blades. 3 dwg