Types and production methods of headers

Classification: Industry News

Dec 27,2024

Head, as a key component in industrial manufacturing, is widely used in chemical, petroleum, pharmaceutical and other fields. Its main role is to close the pipeline, vessel, etc., to ensure the normal operation of the process fluid. There are various kinds of heads and their production methods are also distinctive.


Head, as a key component in industrial manufacturing, is widely used in chemical, petroleum, pharmaceutical and other fields. Its main role is to close the pipeline, vessel, etc., to ensure the normal operation of the process fluid. There are various kinds of heads and their production methods are also distinctive.

I. Types of head:

1. ellipsoidal head: suitable for high-pressure environment, capable of withstanding large pressure.
2. Circular head: common type of head, applicable to many scenarios, such as pipeline, storage tank, etc.
3. Shaped head: head design for special demand, such as rectangle, polygon, etc.

II. production method:

1. Forging method: The head of required shape is made by plastic deformation of metal under high temperature. This method is suitable for making large and complicated heads.
2. pressing method: the plate is pressurized in the mold to make the plate shape, which is commonly used in the production of small and medium-sized heads.
3. Rolling method: the plate is rolled into cylinder and then welded and shaped, applicable to the production of some specific models of heads.

III. Production process:

1. material selection: choose suitable metal materials according to the use environment and demand.
2. Design drawing: design the shape, size and other parameters of the head according to the actual demand.
3. material cutting: cut the metal material according to the drawing.
4. Processing and molding: mold the material by forging, pressing or rolling as mentioned before.
5. Welding and inspection: Weld the head, and then carry out strict quality inspection to ensure the quality of the head meets the standard.
6. Heat treatment and surface treatment: The necessary heat treatment and anticorrosion treatment are carried out on the head to enhance its service performance.
7. Finished product inspection and packaging: finally carry out finished product inspection.

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Structural characteristics of several common types of heads subjected to internal pressure

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Thermal stresses generated by machining stainless steel heads

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