Diseño y construcción de una cámara de niebla salina para la realización de ensayos en el laboratorio de corrosión de la escuela de Ingeniería de Mantenimiento

Abstract

The construction and development of a saline fog chamber has the purpose of accelerating the degradation process in different metallic specimens and non-metallic coatings, simulating corrosive environments, which will allow students to practice and investigate the reaction of the different Types of steels and nonmetallic coatings against corrosion. The study contemplates theoretical concepts of the different elements and systems used for the design and construction of the chamber, its operation, and the elaboration of the maintenance plan of the salt spray chamber. The saline mist chamber was built on the basis of ASTM B-117 which establishes the necessary parameters to be met by the correct selection of materials, air pressure, maximum and minimum temperature inside the chamber, type of water for the Saline solution. The saline fog chamber was built in tempered glass due to its properties in saline environments, temperature and pressure. It was used to supply heat with a heat resistance of 1500 W, a regulating filter and pressurized air dosage, a compressor, humidifier, an inner tank constructed of acrylic and plastic containers that feed water and salt solution to the humidifier and inner tank. A 36 hour test was developed at the end of the construction of the salt spray chamber to monitor the evolution of corrosion in the different test specimens used.