Foundry Technique of Large Sized Speed Governor Planet Carrier Ductile Iron Casting for Wind Power Generator
The article resumes one kind of casting technique about the defects of porosity and shrinks during the productive process of the planet frame of wind power governor of large nodular iron castings,analyzes the causes of the defects,introduces some main techniques and measures to remove the defects,such as optimal designs of feed system,improvements of riser system,optimal setups of cold iron and improvements of feed technique,etc.