Desarrollo del procedimiento de control de calidad del proceso de pintura para un autotanque de 8000 GL de capacidad de gas licuado de petróleo (GLP) bajo las Normas NACE.

Abstract

Through the present work the process of quality control was developed to the process of painting a tank based on the NACE regulations with the purpose of generating a mayor assurance in the quality of the construction. It has started with the revision of the NACE regulations to identify the specifications and methodology to apply, both for the use of cleaning solvents and for the mechanical processes, in addition to the granulate mineral; after analyzing the different paint application systems proposed by the PATINA Network (Anticorrosive Protection of Metals in the Atmosphere), which was based on studies exposed to industrial atmospheres recommend a system of 190 microns thick, consisting of: first layer of 50 microns, intermediate layer of 90 microns and final layer of 50 microns, which guarantees a high anticorrosive protection with the first two layers and an aesthetic finish through the last layer. For the outer coating some commercial brands of coatings were analyzed, the parameters evaluated were theoretical yield, film thickness and percent solids. Testing stories such as roughness profile measurement, discontinuity method, thickness control and adhesion will be used, as well as a calculation of the capacity index to determine if the process control is adequate. With the research carried out it is determined that the quality control process applied to the tank increases the level of assurance of the same and confidence in the painting process. Therefore in our study it is verified that with a correct quality control, subject to standards and technical data sheets, it obtains a guaranteed work that incurs reduction of working times and economic expenses and the elimination of rework.