A variety of head styles, including elliptical heads. According to the difficulty of manufacturing these heads, the plate cover is easier, followed by conical heads, dish heads, elliptical heads, hemispherical heads, and so on. Let's take a look at the actual applications of pressure vessel head components.

Elliptical heads feature two ends, one at the top and one at the bottom, with a straight pipe section in between for pressure vessel tanks. When the pipeline does not extend further, the pipeline at the end of the pipe must be welded to the elliptical head. The mechanical properties of the elliptical head are inferior to those of the hemispherical head but superior to those of the flanged head. The depth of the elliptical head is between that of the hemispherical and flanged heads, making the requirements and manufacturing difficulty for stamping equipment and molds easier than for the hemispherical head but more challenging than for the flanged head. In recent years, due to spinning processes, manufacturing large-diameter elliptical heads has become very convenient. The elliptical head, due to its excellent overall performance, is widely used in medium and low-pressure vessels.

The function of the elliptical head is to terminate the pipeline, currently not for expansion, and it is welded onto the pipeline as an end piece. It is used in pressure vessels, with one head at the top and one at the bottom, with a straight pipe section in between, serving as the vessel of the pressure container. An elliptical head with a long axis to short axis ratio of 2.0 is commonly referred to as a standard elliptical head. The mechanical properties of the elliptical head are second only to the hemispherical head but superior to the dome head. Due to the depth of the elliptical head being between the hemispherical and dome heads, the requirements for stamping equipment and molds, as well as the manufacturing difficulty, are intermediate between the two. That is, it is easier than the hemispherical head but more difficult than the dome head. The adoption of spinning manufacturing technology in recent years has brought convenience to the production of large-diameter elliptical heads. The elliptical head boasts excellent comprehensive performance and is widely used in medium and low-pressure vessels.

Elliptical heads are widely used in industries such as petrochemicals, electronics, chemical, light industry, food, machinery, construction, nuclear energy, aerospace, and military.

Materials include elliptical head materials, carbon steel, stainless steel, aluminum, copper, titanium, nickel, nickel alloy steel, etc.

Elliptical head quality control follows a series of steps. This stage includes supply, physical-chemical processing, cutting, hot forging, heat treatment, inspection, sorting, finished product inspection, marking, finished product inspection, marking, packaging printing, and shipment.

Maintenance of ellipsoidal heads: The chloride ion content of the water used for hydrostatic testing must not exceed 25mg/L, and it should be dried promptly after the test. Stainless steel pickling should not use reducing acids such as hydrochloric acid. Prevent collision scratches on the surface of stainless steel ellipsoidal heads. Avoid direct contact with carbon steel to prevent iron ion contamination. Store indoors to prevent rain. Avoid forced grouping welding. Structural design must prevent excessive constraint stress. After welding the ellipsoidal head and the cylinder, clean up the weld, heat-affected zone, and surrounding weld slag, spatter, and pollutants promptly, and conduct PT inspection and surface pickling.