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What is the difference between "flat welding" and "butt welding" of the outlet flange?
What is the difference between "flat welding" and "butt welding" of the outlet flange? Features of various outlet flanges: 1. Socket welding flanges are suitable for small diameter, high voltage and high temperature pipelines.
What is the difference between "flat welding" and "butt welding" of the outlet flange?
Features of various outlet flanges: 1. Socket welding flanges are suitable for small diameter, high voltage and high temperature pipelines.
2. Flat welding has a boss like butt welding, a groove is opened on the boss, and then the pipe is inserted into it for welding.
3. Socket welding means that there is no boss, and a groove is directly opened on the flange body, just like a hole in a blind flange, and then another groove.
4. Flat welding is slightly better than socket welding.
When the resistors are welded, the two workpieces always maintain pressure. When the temperature of the end faces rises to the welding temperature Tω, the distance between the end faces of the two workpieces will be reduced to several angstroms. grains to form joints. There are two welding cycles for resistors during welding: isobaric and increased forging. The former pressure mechanism is simple and easy to implement. The electric upsetting process can obtain better welding quality. In order to ensure the plastic deformation of the alloy butt weldment and further improve the joint quality, the electric upsetting process should be used.
In the resistance butt welding of the outlet flange, the two workpieces should have the same end face shape and size to ensure that the heating deformation of the workpiece is consistent with the plastic deformation. The end face of the workpiece and the surface in contact with the chuck must be strictly cleaned. Oxide and dirt on the ends will directly affect the quality of the seam. The oxide skin and dirt on the workpiece surface contacting the clamp will increase the contact resistance, aggravate the wear of the workpiece surface jaws, and increase the power loss.
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