how to choose the right welding rod_how to choose the right welding rod

The use of Submerged-Arc Welding Wire can provide several benefits to metal fabricators and engineers who are looking for efficient and reliable ways to join their materials together. The main advantage of using this type of wire is its ability to penetrate deeper into the workpiece due to the increased current density resulting from submerging the electrode into an electric arc bath prior to welding. This allows for greater control over heat input which ultimately decreases distortion during fabrication processes. Furthermore, since there is less spatter created when working with SAW wires compared to other types of wires such as Solid MIG/MAG Wires, they also offer more consistent results throughout multiple projects without having to adjust parameters as much between jobs – reducing time spent on setup and troubleshooting while increasing overall productivity levels by eliminating costly downtime associated with frequent machine adjustments or replacements needed after each job run.

        Cast iron welding rod is a welding rod used for cast iron, characterized by high strength and good plasticity. It is suitable for gray cast iron and ductile iron, and can be machined.
        Cast iron is usually classified according to the distribution of carbon in cast iron, and can generally be divided into white cast iron, gray cast iron, ductile cast iron, vermicular cast iron and malleable cast iron. Due to the high carbon content, uneven structure, low plasticity and poor weldability of cast iron, it is very easy to produce defects such as white cast iron, cracks and pores during welding. Special attention should be paid to the selection of welding process and welding materials during welding. For welding rod arc welding, it can basically be divided into two categories, one is the homogeneous weld type, namely cast iron type; the other is the heterogeneous weld type such as: steel (carbon steel or alloy structural steel, etc.), pure Ni (pure nickel 308), Ni-Fe (nickel iron 408), Ni-Cu (nickel copper 508), Ni-Fe-Cu, Fe-Cu, etc. When selecting welding rods, you can choose according to different cast iron materials, different cutting requirements, different service conditions and importance, different structural characteristics, stiffness, etc.