PROJETO DE UM FORNO ELÉTRICO INDUSTRIAL PARA TRATAMENTO TÉRMICO TUBOS DE AÇO SA-178 GR A

Abstract

This project describes the development of an industrial electric furnace with dimensions of 3000 x 600 x 500 mm, specifically designed for the heat treatment of SA-178 Gr A steel tubes. The main objective is to ensure microstructural uniformity and stress relief, crucial factors for optimizing mechanical properties like ductility and toughness, thereby preventing failures. The furnace is constructed with ASTM A36 steel plates and features 150 mm of ceramic fiber blanket insulation. The heating system, composed of 220 V electrical resistances, operates at a temperature of 800 °C, considering an ambient temperature of 35 °C. The project was developed in compliance with NR-10 and NR-12 standards. The results confirm the technical feasibility of the proposed solution and its potential for industrial application.