Transverse welding is the welding of horizontal welds in a vertical or inclined plane.Short arc welding is adopted to select the welding current with a smaller diameter, and suitable strip transportation mode is adopted.For butt-welding without groove, when the plate thickness is 3-5 mm, double-sided welding shall be used.The electrode diameter is 3.2-4 mm in front welding, and the electrode and the lower plate form 75-80 °.When the welding piece is very thin, use the straight line back and forth the shape of the strip method, to give the pool metal a cooling opportunity, to prevent the pool temperature is too high, so as to prevent burning through.When the welding piece is thicker, can use short arc straight line or small oblique circular strip welding method, can obtain the appropriate penetration depth, the speed of the strip should be a little faster, uniform, to avoid the welding rod in a certain point too much molten metal and the formation of flying edge and upper edge of the weld seam bite defects.For bevel butt welding, the first weld shall be made of a thin electrode.When the gap is large, the straight reciprocating strip method should be used.The second weld shall adopt the inclined circular strip conveying method.In order to prevent the molten metal from gnawing and gnawing on the weld surface, the inclination between each oblique circle shape and the center line of the weld colloidal particles shall not exceed 45 degrees.When the end of the electrode is sent to the inclined circle, the arc strain is short and stops for a while, and then the arc is slowly led to the lower side of the weld, that is, the side where the original arc stops. In this way, various defects can be effectively avoided and the weld is in good shape.