International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The analysis on improvement of soil pumps which are used in the ore-dressing enterprises of the Republic of Kazakhstan is provided in article. As a result of the analysis of operation of soil pumps it is revealed that soil pumps, don’t meet modern requirements in reliability and power consumption, and possibility working parameters adjustment. The main shortcomings of soil pumps is low life cycle of flowing part components. At the moment the main solutions to increase operational resource of soil pumps are — decreasing of cavitation processes; reduction of hydro abrasive mixture flow in the impeller cavity, that will reduce surface wear of impeller elements and increase pump inlet capability; For pulp pumping – reduction of vibration influence both of hydro abrasive mixture and pump overall; Slurry solids extraction prior to its inflow into the cavity of the impeller and its blades. The following Innovative technologies for improvement of soil pump operational life and wear reduction of impeller parts surfaces were provided.

The aim of this paper is the investigation of the effect of natural aging on the mechanical, physical and microstructural properties of an EN AW-6060 aluminum alloy. These properties were investigated during different aging treatments. Firstly, the effect of natural aging on properties was investigated, after which the influence of natural aging (room temperature pre-aging) on the artificial aging was studied. The results showed the beneficial effect of natural aging in both sets of experiment. During the natural aging, the hardness increased for around 20 % while electrical conductivity values were slightly higher than in the quenched sample. The hardness of the samples gradually increases up to 25 days of natural aging reaching a plateau state, after which the values of hardness remain the same. Also, room temperature pre-aging had a positive effect on subsequent artificial aging. Samples that were pre-aged for 40 days or more before artificial aging had around a 13 % increase in hardness values compared to the samples that were directly artificially aged. Electrical conductivity had increased by around 1 MS/m in pre-aged samples compared to only artificially aged samples. Optical microscopy investigations confirmed the existence of precipitated phases and their distribution in the microstructure.

A structure of a multifunctional hardware – software system for sensing and control of remote objects in the household and in the industry are considered. A version of data transferring between control center and controlled object using GPRS service is proposed. The monitoring and control are realized by a set of remote stations which control the objects and receive parameters from them. Every station has a microcontroller and GSM – GPRS modem with SIM card. The stations are linked to the switching server. Data received from remote stations are kept in the server. The server distributes information and sends control commands. Personal computers of the control center are connected in a local network. They receive data from WEB sites and send commands to the switching server. The design and the characteristics of two realized systems for remote monitoring and control are described.