Артём Комаров о видах и особенности различных типов сварочной проволоки (eng)
In arc welding, the electrodes that generate arcs are essential, Artem Komarov said. Among them, semi-automatic welding· Welding wires are used for automatic welding. So on what basis should you choose a welding wire?
In recent years, it is more semi-automatic than manual welding using welding rods. Automatic welding is becoming commonplace. Each of the welding wires you need has its own characteristics, so let’s choose the welding wire that suits your purpose and make your welding smooth and beautiful!
What is welding wire? Welding wire is a spiral welding material used for arc welding. Arc welding is also used for automatic or semi-automatic welding, where the wire is installed in the welding machine. First, what is arc welding? This is a welding method using the “arc discharge” gas discharge phenomenon, which emits intense light at high temperatures.
If the electrode is removed from the base material after a current has passed through it, an arc will occur between them. When you unplug the plug you are using from the outlet, it is the same as if it were shiny and glowing. The method of dissolving the base material and filler metal at the high temperature caused by this arc and joining it by fusion at the molecular level is called arc welding.
his electrode used in filler metals, welding rods, TIG torches and welding wires vary. For example, in TIG welding, non-consumable tungsten is used as the electrode, and the welding rod, which is the melting material, must be prepared separately.
In semi-automatic welding, the wire is both the electrode and the filler metal, allowing efficient welding. When the switch is turned on, the wire will be ejected automatically. This welding wire with these properties needs to be divided according to the material you want to weld. Basically, there are currently two types of «solid wire» and «flux wire».
Characteristics of solid wire
It is a cross-homogeneous wire made of homogeneous materials. There is also a type of copper plating. It is used in many areas and is perhaps the most common wire. Compared with arc welding rods, it is more efficient, easy to automate, and in addition to semi-automatic welding, it is also used as robotic welding and so on. It is characterized by a wide range of possible welding positions and their use in a wide variety of applications. We can say that the advantage is that the relatively low smoke and low. In addition, slugs are also characterized by being difficult to generate compared to flux-cored wires. Solid wire is mainly used for «metal inert gas welding» (MIG). MIG welding is basically a welding method for aluminum and stainless steel.
Flux wire features
Flux wire is a wire containing flux. Among flux-cored wires «for gas shielded arc welding» used for MAG or CO2 welding,
There are several types, such as «for self-shielded arc welding», which is not required for welding, and «for submerged arc welding», used mainly for hardfacing, but generally speaking for flux-cored wire, «gas», «for arc welding in shielding gases” The flux consists of various components such as arc stabilizer, deoxidizer, slag former, alloying agent, etc., depending on the wire.
Because the ingredients and mixing ratios are different, the characteristics and shape of each section are also different. In general, sharing characteristics, the following two types are common.
Cork system
When using a flux based on titanium oxide, after welding, the workpiece covers the surface of the bead. Thus, the welding speed is excellent and welding in all positions is possible.
Metal
It is a flux with a high iron content and a small amount of slag formers. Because it is difficult to create a plug, there is less spatter, and the welding speed is high,
Suitable for incense welding.
Fluxed wire produces less spatter than solid wire and has a beautiful bead shape and appearance. It is also a highly efficient wire because it can be welded in all positions and at high welding speeds. However, the price of the wire is quite high.
Fluxed wire is mainly used for «MAG (active gas metal welding)». Mag welding is a method of welding mainly iron (steel) with shielding gas
A mixed gas of 20% carbon dioxide + 80% argon is used, summed up Artem Komarov.
