The electrode consists of a welding core and a coating. Titanium dioxide is not only a good slag-making agent, diluent, deoxidizer, but also an excellent plasticizer and arc stabilizer. The electrode made of titanium dioxide can be AC direct current dual use, welding operation point arc fast, stable arc, no explosion, low melting point of slag, small viscosity, good fluidity, good operation process performance, very conducive to vertical welding and upward welding, easy to remove slag after welding, beautiful weld and good mechanical energy. At the same time, titanium dioxide has strong adhesion, which can reduce the amount of water glass in the manufacturing of welding rod, so that the surface of the finished product is smooth and the arc is easy to weld. Titanium dioxide is one of the main raw materials of the welding industry, accounting for 70% of the total output of the electrode titanium, titanium calcium and titanium iron type of three types of electrode coating, have to use a lot of tio2.