As everyone knows, it's time to learn about fabric air duct ventilation pipes. The fabric air duct ventilation pipe manufacturers below will introduce some new professional knowledge in detail, so that everyone can have a deeper understanding of fabric air duct ventilation pipes. The following The main point to interpret is the welding method of the fabric duct ventilation duct. Welded fabric air duct ventilation duct is generally hand-made welding, commonly known as MMA, but also metal material gas shielded welding, tungsten inert gas shielded welding, metal material gas shielded welding, commonly known as MIG/MAG, tungsten inert gas shielded welding, TIG. Method 1: Fabric air duct The hand-made welding of the spiral air duct factory is very widely used, and the actual operation is also very simple. It is mainly adjusted manually. The raw material for welding is the fabric air duct electrode. The hand welding machine can basically weld all raw materials, even outdoors, so it has good adaptability. Generally, DC power supply is selected for welding. Welding bars are fabric air ducts that can weld both titanium and metal. Titanium alloy welding wire is relatively easy to weld, beautiful during welding, and the weld seam is easy to fall off. But the disadvantage is that if it is not used for a long time, it must be baked again to prevent moisture accumulation. Method 2: Metal material gas shielded welding It belongs to gas shielded welding, and it is arc welding in which the welding wire is dissolved by the electric isolation under the action of the maintenance gas. Steel, non-carbon steel, high alloy steel and high aluminum alloy can be used for gas shielded welding of metal materials and are widely used. However, the gas it maintains must be a specific gas, such as carbon dioxide or mixed gas and so on. The disadvantage is that if the welding is performed outdoors, the product workpiece cannot return to moisture, otherwise it will endanger the actual effect of the maintenance gas. Method 3: The tungsten inert gas shielded welding electrode is generated between the tungsten arc welding wire and the product workpiece. Therefore, the gas is kept pure argon, and the electrode will not be induced to electrify. Therefore, it can be fed by hand, It can also be fed with equipment, and sometimes not fed. Then whether it uses a DC power supply or an AC current depends on the raw material of the welding. Tungsten inert gas shielded welding is mainly used for welding the medium-thin and medium-thin thickness of product workpieces.
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