Ellipsoidal Head is a kind of boiler part in the pressure vessel. The elliptical head adopts medium frequency induction heating to heat the pipe locally while carrying on mechanical transmission and bending the pipe. The ellipsoidal head can reach 120KW with the highest power, and can heat pipes of various sizes and specifications. Easy to operate and maintain. The head applies external force to the metal blank, causing it to undergo plastic deformation, change the size, shape and improve the performance of the forming process for the manufacture of mechanical parts, work pieces, tools or blanks.

The Ellipsoidal Head is a head consisting of half an elliptical shell and a straight side (cylinder stub). Because the radius of curvature of the elliptic curve changes continuously, only bovine film stress is produced in the overall part of the elliptic shell after compression, and the discontinuous stress is small at the joint of the elliptic shell and the straight edge because of the common tangent. The edge stress at the joint of the elliptic shell and the straight edge of the standard elliptic head whose ratio of the long and short axes is equal to 2 is small and can not be considered.