First, stainless steel electrodes usually have two types: titanium calcium type and low hydrogen type. The welding current is a DC source as possible, which is good for overcoming the redness and shallowness of the welding rod.
Second, the Fiberglass sculpture should keep the stainless steel electrode dry during welding. In order to prevent cracks, pits, pores, and other defects, the titanium-calcium type coating is dried at 150-250 °C for 1 h before welding and dried at 200-300 °C for 1 h before the low-hydrogen type coating.
Third, the welded joints used for welding Fiberglass sculptures need to be cleaned, and at the same time prevent the welding rods from being contaminated with oil and other dirt, so as not to increase the carbon content of the welds and affect the welding quality.
Fourth, in order to prevent corrosion caused by heating, the welding current should not be too large, generally should be about 20% lower than the carbon steel electrode, the arc should not be too long, the layer is fast cold, narrow tunnel welding is appropriate.
5. When welding Fiberglass sculptures, it is not possible to induce arcing at non-welded parts. It is best to use arc striking plates of the same material as the weldments to induce arcing.
Sixth should use short-arc welding as much as possible, the arc length is generally 2-3mm, and the arc is too long to produce hot cracks.
Paying attention to these problems in the process of welding Fiberglass sculptures can ensure the quality of the Fiberglass sculpture welding, and there is no need to worry about the quality of the sculpture.