Main gearbox lower housing casting descriptions: The figure as shown is FD2250G lower box, a lower box of wind turbine gearbox supplied to NGC. As the box needs to contain oil, it has a high requirement for casting appearance and needs to be performed with oil-containing test. With the casting...More
xihua ductile iron foundry can make ductile iron casting (SG Iron Casting) of max.weight 70 tons.Ductile iron has greater strength and ductility then gray iron. Those properties allow it to be used effectively in a wide variety of industrial applications, including gear boxes, ,flange,Planet...More
XIHUA Ductile Iron Foundry produces a family of cast graphitic irons possessing high strength, resistance to shock and ductility. Annealed ductile iron castings resist fracture even when being bent, twisted or deformed. Its strength, toughness and ductility greatly exceed that of standard grey...More
Main gearbox upper housing casting introduction: The figure as shown is FD2250G upper box, a upper box of wind turbine gearbox supplied to NGC. Combined with the lower box body of FD2250G, it is the box shell of the wind power gear box.With the casting grade of EN-GJS-400-18, the casting shall...More
When the wind tower ring forging flange is used, the flanged series on the outer wheel makes the axial positioning easier during operation, and the wind tower ring forging seat is no longer needed in use, which becomes more economical, in order to obtain the low friction torque of the wind tower ring forging. High rigidity, good rotation accuracy, and a steel ball with a small outer diameter. The use of a hollow shaft ensures space for wiring and wiring.
Ductile iron casting has a strict chemical composition when it is used. The carbon silicon content required for the original molten iron is higher than that of gray iron casting, and the content of manganese, phosphorus and sulfur in the ductile iron casting is reduced. The temperature of the molten iron is higher than that of the gray iron casting to compensate for the spheroidization and the loss of the temperature of the molten iron during the treatment.
The mechanical properties of gray iron casting during operation are related to the microstructure of the matrix and the morphology of the graphite. The flake graphite in gray iron casting is severely cracked on the substrate, and it tends to cause stress concentration at the sharp corners of the graphite. The tensile strength, plasticity and toughness of the gray iron casting are much lower than that of the steel, but the compressive strength is equivalent to that of the steel. The worst mechanical iron casting in the piece. At the same time, the matrix structure has a certain influence on the mechanical properties of gray iron casting. The graphite sheet of ferrite matrix gray iron casting is coarse, with the lowest strength and hardness, so it is less applied.
The wind power flanges is a part that is connected between the shaft and the shaft during the operation. It is mainly used for the connection between the pipe ends during use, and can also be used on the flange of the inlet and outlet of the equipment during operation. In use, it is mainly used for the connection between two devices, such as the reducer flange. A flange connection or a flange joint refers to a detachable connection in which a flange, a gasket and a bolt are connected to each other as a combined sealing structure.