Abstract: A method of casting a base of high-power wind turbines with low-temperature nodular graphite iron, using furan resin sand as the mold sand and having no risers or chills in the mold. The mold undergoes microseismic compaction and has no chills risers. The parting face of the mold is perpendicular to the ground. The molten iron in the mold is solidified evenly. Therefore, shrinkage holes and disperse shrinkages base are reduced greatly and the dregs and air are discharged easily for the base. The pouring system designed together with a reasonable pouring rate and time make the filtering system useful for blocking dregs.

Abstract: A method of casting the base of high-power wind turbines with low-temperature nodular graphite iron, use furan resin sand as the mold sand, and there is no riser or chill in the mold. The mold undergoes microseismic compaction, has no chill and riser, and when parting the parting face is perpendicular to the ground. The molten iron solidifies evenly, which greatly reduces the shrinkage holes and disperse shrinkage, and the dregs and air are easy to be discharged. The pouring system designed for the base, together with reasonable pouring rate and time, makes the system useful in blocking the dregs. All areas of the base need to meet the standards of EN DIN12680 Level 2 or Level 3 of the UT tests.