No-rerolling tube section production process
2014
The invention discloses a no-rerolling tube section production process. The process comprises the following steps: a, edge rolling: producing an edge rolling sample plate; when the length of the sample plate is 800mm and the thickness of the sample plate is 10-20mm, the pressure of the edge rolling sample plate is controlled within 20-40MPa; when the thickness of the sample plate is larger than 20mm, the pressure of the edge rolling sample plate is controlled within 40-60MPa; b, welding: firstly, welding inner seams, and then welding outer seams; during welding, according to the different thicknesses of steel plates, adopting welding wires with different diameters, and setting different welding currents, welding voltages and welding speeds for welding operation. The process is easy to operate, does not require a rerolling process, greatly improves the production efficiency, lowers the production cost, and is easy to master.
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