Manufacturing method for 2205 dual-phase steel thin-wall welded pipe
A manufacturing method and dual-phase steel technology, applied in manufacturing tools, welding equipment, arc welding equipment, etc., can solve the problems of corrosion resistance of welds, complicated welding process, and difficult control of welding quality, etc., to achieve good mechanical properties and corrosion resistance, reliable weld seam quality
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Embodiment 1
[0023] The manufacturing method of the 2205 dual-phase steel thin-walled welded pipe of the present embodiment comprises the following steps:
[0024] Step 1, forming a 2205 dual-phase steel sheet with a thickness of 2 mm into a tube shape;
[0025] Step 2. Using ER2209 welding wire as the filling material, the non-groove narrow gap pulse TIG welding method is used to perform automatic wire-filling welding on the area to be welded of the 2205 dual-phase steel sheet formed into a tubular shape in step 1, and the 2205 dual-phase steel sheet is obtained. Wall welded pipe, the entire welding is one-layer welding; the narrow gap means that the welding gap is 1.0mm; the diameter of the ER2209 welding wire is 1.0mm, and the wire feeding speed of the welding wire is 0.2m / min; the automatic wire filling welding The diameter of the tungsten electrode used is 4.0mm, the welding power supply is a DC pulse power supply, the inner shielding gas and the outer shielding gas are both argon, th...
Embodiment 2
[0027] The manufacturing method of the 2205 dual-phase steel thin-walled welded pipe of the present embodiment comprises the following steps:
[0028] Step 1, forming a 2205 dual-phase steel plate with a thickness of 3 mm into a tube shape;
[0029] Step 2. Using ER2209 welding wire as the filling material, the non-groove narrow gap pulse TIG welding method is used to perform automatic wire-filling welding on the area to be welded of the 2205 dual-phase steel sheet formed into a tubular shape in step 1, and the 2205 dual-phase steel sheet is obtained. Wall welded pipe, the whole welding is one-layer welding; the narrow gap means that the welding gap is 0.5mm; the diameter of the ER2209 welding wire is 0.6mm, and the wire feeding speed of the welding wire is 0.1m / min; the automatic wire filling welding The diameter of the tungsten electrode used is 4.0mm, the welding power supply is a DC pulse power supply, the inner shielding gas and the outer shielding gas are both argon, the...
Embodiment 3
[0031] The manufacturing method of the 2205 dual-phase steel thin-walled welded pipe of the present embodiment comprises the following steps:
[0032] Step 1, forming a 2205 dual-phase steel plate with a thickness of 2.5 mm into a tube shape;
[0033] Step 2. Using ER2209 welding wire as the filling material, the non-groove narrow gap pulse TIG welding method is used to perform automatic wire-filling welding on the area to be welded of the 2205 dual-phase steel sheet formed into a tubular shape in step 1, and the 2205 dual-phase steel sheet is obtained. Wall welded pipe, the entire welding is one-layer welding; the narrow gap means that the welding gap is 1.5mm; the diameter of the ER2209 welding wire is 1.5mm, and the wire feeding speed of the welding wire is 0.3m / min; the automatic wire filling welding The diameter of the tungsten electrode used is 4.0mm, the welding power source is a DC pulse power supply, the inner shielding gas and the outer shielding gas are both argon, ...
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Abstract
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