The welding of stainless steel is the most commonly used methods: mainly manual welding (MMA), the second is the gas metal arc welding (MIG/MAG) and tungsten inert gas (TIG) welding.
1 of automatic welding machine, welding preparation, straight seam welding machine, the girth welding machine
4 mm thickness not break open, direct welding, single penetration at a time. 4 to 6 mm thickness of the butt weld can be used break joint welding by both sides. More than 6 mm, usually open V or U, X groove. Second: butt welding, filling welding wire for oil removal and to scale. To ensure the welding quality.
2 automatic welding machine, welding parameters, straight seam welding machine, the girth welding machine
Including welding current, tungsten electrode diameter, arc length and arc voltage, welding speed, protect the air, nozzle diameter and so on.
(1) the welding current is the key factor that decided to weld. Usually according to the welding material, thickness, and shape of the groove.
(2) the welding electrode diameter is determined according to the welding current size, current, the greater the diameter.
(3) welding arc and arc, arc length range is about 0.5 to 3 mm, corresponding to the arc voltage of 8-10 v.
(4) the welding speed, when the choice to take into account the current size, welding pieces of material sensitivity, such factors as the position of the welding and operating mode decision.
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