Classification and Production Standards of End Caps

I. Classification of End Caps

The end closures include the design of convex heads, conical shells, reducing sections, flat covers, and constricted openings. Convex heads include: hemispherical heads, elliptical heads, dished heads, and spherical cap heads.

III. Production Standards for End Caps:

1. The end cap must be inspected for shape using a full template.

2. The radius within the transition section shall not be less than the value specified in the drawing.

3. Spherical shape: The curvature affects the thickness of the end cap.

4. Transition section: Reduces the peak stress at the connection between the spherical shell and the cylindrical body.

5. Straight edge: This prevents the peak stress in the transition section from being superimposed with the welding stress during the assembly of the cylinder body.