Reduced iron powder used in welding rods

Iron powder electrode is to improve the efficiency of electrode deposition, add a certain amount of electrode in coated with reduced iron powder deposition efficiency in more than 105% of the electrode is characterized by iron powder is heated oxide generated when a lot of heat, be in addition to the arc heat source, which can improve the operation of the electrode process performance, improve the deposition efficiency is below 30% for the amount of iron powder, add iron powder is mainly to improve welding technology, such as E5018 type iron powder addition amount is more than 30%, and appropriately increase the coating thickness, can greatly improve the deposition efficiency of welding rodThe latter are often referred to as efficient iron powder electrode, the deposition efficiency can reach 160%, the highest can amount to 250% iron powder electrode generally have good process performance, mainly used to weld fillet welding peace sulfur is a kind of harmful impurities, with the increase of sulfur content in electrode, will increase the weld hot cracking tendency, so the core content of sulfur in welding shall not be greater than 0. 04% when welding the important structures, sulfur content shall not be greater than 0. 03%;The welding rod produced by our factory uses reduced iron powder, which has been desulfurized for many times during the production process, and the sulfur content of the product is 0.015%