Solid core rod, insulator and manufacturing method

The invention discloses a solid core rod. The solid core rod comprises an inner core and at least one winding layer, wherein the at least one winding layer is wound outside the inner core; the winding layer comprises a first winding group and a second winding group which are alternatively arranged, the winding angle of the first winding group is 3 to 10 DEG C, the winding angle of the second winding group is 80 to 89 DEG C, and the thickness portion of the first winding group to the second winding group is 7-9:1-3. The invention further provides a manufacturing method of the solid core rod and an insulator comprising the solid core rod. The solid core rod and the preparation method thereof can reduce the solidification cost, saves energy consumption, effectively improve the production efficiency of the core rod, and at the same time, improves the bending performance of the core rod.