18 Years Factory Motor Spring - High Quality Hemispherical Head – Mingchang

Hemispherical head refers to the head composed of half a spherical shell and straight edge (cylinder short section).The radius of curvature of the spherical shell is the same everywhere, and the force is uniform.Compared with other heads, hemispherical heads require minimum wall thickness for the same internal pressure.Head volume at the same time the minimum surface area, the most economical material.The force is uniform.However, due to the manufacturing difficulties, in addition to generally used for higher pressure, larger diameter pressure vessels, other vessels are less used.