Implantação da certificação interna de soldagem e soldadores em uma empresa de fabricação de tanques metálicos jaquetados subterrâneos para combustíveis em Teresina - PI

Abstract

During the supervised internship carried out in a company that manufactures jacketed metal underground tanks in Teresina-PI, the need to internally develop and qualify the welding procedures and welders for the processes of electric arc welding with coated electrode and the process of electric arc welding with gas shield atmosphere. The problem stems from failures followed in the qualification tests of welders, which is required during the compulsory quarterly audits in which the company is submitted, generating a non-conformity, and consequently, the rejection of the tanks. Thus, this work aims to establish the procedures for certification of welding and welders, adapting the requirements of ABNT NBR 16161/2019 and ASME Code SECTION IX. Actions were taken with employees, in this case, welders, with the validation of the welding parameters for both processes, training, and follow-up "in locu" for mitigating actions and thus obtaining a quality product. For these evaluations, a specimen was made by each welder and submitted to the tests required by the standard. Subsequently, the results of the specimens were analyzed regarding visual inspection, penetrating liquid, its tensile strength, folding, chemical composition and industrial radiography. As a result, it is pointed out that the proposed objective was achieved with no further failures, and consequently, remedying the previously suffered non-conformities, ensuring the effectiveness of solders and the quality of manufactured products, proven through the documents prepared and test results.