Several different manufacturing processes of pipe

Several different manufacturing processes of pipe caps

Cold stamping of pipe cap: A pressure processing method of applying pressure to sheet metal by using stamping die on the press at room temperature to obtain the desired shape and size of the workpiece by plastic deformation. Cold stamping tube cap size is accurate, good consistency, excellent surface quality, suitable for mass production, cold stamping process does not need fuel, save energy, reduce exhaust emissions, thus reducing the impact on the environment, but also reduce the impact on the material itself.

Cold spinning of cap: sheet spinning process at room temperature. By rotating the plate force point from point to line from line to surface, at the same time in a certain direction to give a certain pressure so that the metal material along this direction deformation and flow and forming. Here, metal materials must have plastic deformation or flow properties, spin forming is not the same as plastic deformation, it is a complex process of plastic deformation and flow deformation, spin forming technology is not a single force spinning and ordinary spinning, it is a combination of the two. For spinning products, except the flat bottom head, generally through the drum type cold stamping pre-forming before spinning. The cold spinning method is suitable for the manufacture of non-standard diameter products and can save the cost of stamping die.

Hot stamping of pipe cap: Thermoplastic hot stamping technology is to use the sheets are easy to shape, is suitable for the high strength of high strength steel and thick head due to adopt the way of heating processing, need to use fuel, has a great impact on the environment, because the sheet forming in heated state, performance is uneven, with embrittlement in stainless steel cooling process, need appropriate heat treatment after forming, Restored or improved performance. Due to hot stamping, the expansion and contraction of the head are greatly affected by environmental factors, and the size control after hot stamping is relatively difficult.

Hot spinning of tube cap: The sheet spinning forming process under heat, which is less used in tube cap processing at present. It is a forming process in which the sheet is heated to a suitable temperature and spun while heating. Hot spinning products are suitable for the manufacture of thick non-standard diameter products. Compared with hot stamping, it is easier to grasp the variation of diameter size.

Split processing of tube cap: a pressure drum forming process, generally using