Diseño y construcción de una máquina para ensayos de desgaste abrasivo según norma técnica ASTM G65 / COGUANOR 41087 h2

Abstract

It is designed a test machine for abrasive service according to the technical standards ASTM G65/COGUANOR NTG 4187 h2 , which show similarity of physical principle for the purpose of determine experimentally the abrasion resistance in paving stones and steels in order to develop improved and ensure the quality of the materials tested. The methodology used in this thesis is based on the mathematical calculation and use of software for the design considering parameters of wear resistance established in standards such as: power, speed, counter balance, flowed and the type of abrasive material, test times, dimensions; also the proper selection of alternatives for the prototype of the machine. The abrasion test is to produce wear by the fall of the constant flow of abrasive which passes tangentially between the rotary disk and the wear surface of the test tube depending on the standard and steel used in the testing procedures are established as A, B, C, D and E.The abrasive wear was calculated using mathematical equations bases on tests performed on steel AISI D2 by the method B, due to its high resistance and a manner similar in vehicular concrete paving stones. The results are presented in phases. That is way, in the design phase it was developed the plans of the machine, selection of building materials and finally performance tests developed. Therefore it is recommended to delve into the experimental phase and validation of test methods; contributing to the quality improvement in the processes outlined production.