Studying fiberreinforced concrete for casting housing parts of pumps
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 6, Issue 12
Abstract
<p>Many enterprises of the mining and metallurgical industry use pumps transferring aggressive liquids and slurries containing abrasive particles. For the manufacture of pump housings, taking into account their operating conditions, expensive alloy steels with increased wall thickness are used.</p><p>As a result of the study, the analysis of possible materials for the manufacture of fiber-reinforced concrete with the required strength characteristics was carried out. The selection of the optimum ratio of the components, providing, on the one hand, cost minimization of fiber-reinforced concrete and, on the other hand, rational technology for the manufacture of housing parts of fiber-reinforced concrete without additional machining, was carried out.</p><p>It was found that the specified conditions are met to the greatest extent by the mixes containing crushed rubble, quartz sand and ground quartz as aggregate, anchor steel fiber, as well as resin and hardener.</p><p>Theoretical and experimental studies showed that the aggregate must meet the following requirements: it must be three-component by particle size distribution, and the particle size of each component must differ by an order of magnitude from the previous one. This allows obtaining dense mixes by filling voids in large fractions with smaller particles.</p><p>As a result of laboratory studies, it was found that the compressive strength of such hardened mixes is 230...240 MPa.</p><p>It was found experimentally that the optimum fiber additive (steel anchor) should be within 3...5 % by weight.</p>The results of the study allow carrying out calculations of the parameters of pump housing parts with reduced wall thickness, lower weight, and also developing a technology for casting such parts with a high degree of readiness for use
Authors and Affiliations
Leonid Krupnik, Kassym Yelemessov, Saiyn Bortebayev, Dinara Baskanbayeva
Keywords
Related Articles
- EP ID EP528350
- DOI 10.15587/1729-4061.2018.151038
- Views 66
- Downloads 0
Development of a resource-process approach to increasing the efficiency of electrical equipment for food production
<p>Specific indicators of heat and electric power consumption per unit of food production have object-oriented properties, since they are determined on the basis of methods that are suitable only for a particular enterpr...
Localization and navigation of mobile robots in an environment with variable properties
<p class="a"><span lang="EN-US">A method of localization and navigation of a mobile robot in an environment with variable properties in conditions of limited possibilities was proposed for remote control which provides f...
Development of methods to control quality of the structure of cross-wound packages
<p>The process of winding is one of the principal processes in the textile industry. Quality of the formed packages largely defines the quality of the finished product in the textile industry, as well as labor productivi...
Search for the dualfrequency motion modes of a dualmass vibratory machine with a vibration exciter in the form of passive autobalancer
<p>We analytically investigated dynamics of the vibratory machine with rectilinear translational motion of platforms and a vibration exciter in the form of a ball, a roller, or a pendulum auto-balancer.</p><p>The existen...
Investigation of cogging forces using reluctance circuits equivalent approximation in a ladder secondary singlesided linear induction motor
Linear induction motors have recently played an important role in positioning linear motion. However, they suffer a low level of precision for very low speed application. For improving the precision of LIM, especially in...