The importance of pipe cutting in PE pipe production line
The importance of pipe cutting in PE pipe production lineThe production process of the pipe in the PE pipe production line, including the quality of the cutting, may affect its use in the actual process. PE pipe cutting is the fundamental process of making pipe parts, including pipe blocking, port shape blanking, Punching and cutting, etc.
Pipe cutting is a separate process of stamping processing. Compared with sheet cutting, because of its shape (hollow section) characteristics, in order to prevent the pipe wall from being flattened during cutting, the process methods adopted are more messy, and the mold design and The production also puts forward higher requirements. Compared with machine cutting and cutting, pipe cutting is suitable for mass production because of its fast processing speed and high production efficiency. Therefore, there is a wide range of prospects for use, but because the pipe cutting process itself is messy, and it is technically unsophisticated, it is not widely used in production.
The importance of pipe cutting in PE pipe production line
In order to ensure the welding quality of pe pipes, the welding materials for the cladding and the bottom layer must be selected appropriately first. In order to more effectively prevent problems such as dilution and carbon relocation, a welding isolation transition layer is added between the bottom layer and the cladding layer, so it is necessary to select the welding materials for the isolation transition layer. The basic principle of selecting welding materials is: the welding materials for cladding should ensure that the content of the primary alloying elements of the metal is not lower than the lower limit of the standard rules of the cladding base material; for the welding joints that have the requirements to prevent intergranular corrosion, the metal should also be ensured There is a certain content of Nb, Ti and other stabilizing elements or C≤0.04%. Regarding the bottom layer, the welding data should be selected according to the alloy content of the bottom layer steel to ensure that the tensile strength of the welded joint is not lower than the lower limit of the tensile strength of the base material standard rules.
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