Head refers to the element used to close the end of the container to isolate its internal and external medium, also known as end cap. According to the shape of surface of head, it can be divided into convex, conical, flat plate and combined shape. Convex head refers to the head whose outer surface shape is convex, such as hemispherical, oval, disk-shaped and unfolded spherical head. In welding, it is divided into butt-welding head and socket-welding head. They are used for various container equipments, such as storage tanks, heat exchangers, towers, reactors, boilers and separation equipments. The materials are carbon steel (A3, 20#, Q235, Q345B, 16Mn, etc.), stainless steel (304, 321, 304L, 316, 316L, etc.), alloy steel (15Mo3 15CrMoV 35CrMoV 45CrMo ), aluminum, titanium, copper, nickel and nickel alloys.
Head is a kind of element used to close the port of container, which is usually made of metal material with the features of high temperature resistance, corrosion resistance, high strength, etc., so it is very popular once it appears in the market. The types and application fields of head produced by head factory can be explained as follows.
As an important part of the pressure vessel, the head has the important duty of bearing pressure. However, head is also susceptible to corrosion, which affects the normal work of the pressure vessel. Head factory will generally use the following points to prevent head from corrosion problem.
Head refers to the element which is used to close the end of the vessel to isolate its internal and external medium, also known as end cap. According to the shape of the surface, it can be divided into several kinds such as spherical, oval, disk, crown, cone shell and flat cover, etc., among which spherical, oval, disk and crown heads are also collectively called convex heads. Then what is the code name of commonly used head?
On June 16th, 2023, experts from Henan Petrochemical Equipment Management Association and Xinxiang Municipal Market Supervision and Administration Bureau of Special Equipment Leadership Level visited Henan Huayang Head Co. At 8:30 a.m. on the 17th, experts from Henan Petroleum and Chemical Industry Association, special equipment leading experts from Municipal Supervision Bureau, General Manager of Huayang Head RuXiangBo, RuXiangWei, and all the staffs of A2 grade pressure vessel QA system participated in the first meeting of the on-site evaluation.