Improvement of the technology of recovery of the internal surface of the body spider SPG-80 with the use of advanced welding materials

Currently, substantially increased the proportion of facilities, equipment and parts in a range of industries, particularly in the oil and gas industry is approaching a critical service life or have already exhausted their standardperiod. In connection this there is a question to enterprises about buying expensive equipment and parts.
Materials and methods
Electric arc welding with powder wire VELTEK- N300RM.
Results
The proposed technology by increasing the hardness of the surface build-up can extendthe resources spider body up to 1 year.
Сonclusions
1. Automatic welding with the use of welding wire VELTEK-N300RM and flux of AN-348-A allows to get the hardness of the internal surface of the body spider SPG-80 4units more than at the factory parts, that allows to increase the operating life of the repaired item up to 1 year. 2. The proposed technology of restoration of the inner surface is more productive, compared with manual arc welding, because the process of welding is conducted in automatic mode. 3. The use of automatic welding leads to a decrease in the influence of the humanfactor on quality of a weld surface. 4. Replacement of manual arc weldingof automatic submerged arc welding, contributes to the reduction in the cost of recovered products, because losses are reduced through burning and splashing, and also reduces power consumption. 5. Lack of the wire electrode, as well asthe reduction of harmful emissions from the combustion of metals and welding materials make the process of surfacing more environmentally friendly than manual arc method.