ANALYSIS OF ONE OF THE COMPONENTS OF A NEW ECOLOGICAL WATERING CAN DESIGN

• DOI: https://doi.org/10.22533/at.ed.3174112412045

• Palavras-chave: regadera, resorte, metalografía, microscopio óptico, microscopio electrónico.

• Keywords: watering can, spring, metallography, optical microscope, electron microscope.

• Abstract:

  The purpose of this work is to analyze one of the components of an ecological shower, which is very important because it reduces the passage of water flow by approximately 50% according to the conventional shower that has a cost of 10liters/minute, in ecological and economic terms, this way gas consumption is reduced by up to 30%. The design of the proposed shower is based on the NOM-008-CNA-19988 standard (Hydraulic installation and operation). The stainless steel spring used is an important part of the work to regulate the flow of water. This device was obtained by a manufacturer that did not provide its mechanical characteristics, it was only known that it had to work at a pressure of 3  kgf/〖cm〗^2 2, so a stainless steel was used (ASTM A313, which includes steels 302, 304 and 306) which are common for small springs that work in contact with fluids, have good resistance to oxidation in addition to withstanding stress under repeated loads. Therefore, it was necessary to carry out a characterization study using the metallographic technique, of which later, using the optical microscope and scanning electron microscope equipment, the type of microstructure present was observed, as well as the chemical composition of the sample in each one. of the aforementioned equipment respectively. This way, it was found that the material used for the spring belongs to an AISI 304 steel according to the chemical properties obtained from the study are within the range of the compositions according to the ASME standard.