Elaboração e qualificação da EPS e soldadores para soldagem de tubulação de despoeiramento com USI SAC 350

Abstract

This work describes, establishes and presents the methodology for qualification of welding procedure and welders, to meet the welding by flux cored process (FCAW), need of an industrial dedusting system, including boiler and piping elements, built in USI SAC 350 steel. Through the welding of test plates with monitoring and inspection, according to pre-established standards and procedures, tests and tests on specimens, the qualifications of the procedure and the welders for the welding of the established joints were carried out. These activities were developed on the premises of the company ETEMAN MANUTENÇÃO INDUSTRIAL LTDA, which granted the right to use the space for welding and inspection practices, as a way of consolidating the theoretical foundation addressed herein. For evaluation and analysis of the results, non-destructive tests by visual and ultrasound of the test plates were carried out, as well as mechanical tests of traction and bending of the test specimens removed from the thesis plates. All tests presented satisfactory results, ensuring the qualification of the procedure and the welders as required.