The algorithm of operation of the universal device intended for registration of temperatures and for control of temperature regimes is described. The components with which the device can be created are described. The software developed by the authors is presented.
The presented mathematical model is based on the use of the finite difference method. The model is implemented as a web application and allows users to explore the features of the solidification process and calculate the frequency of impulse actions. Using the model, the required frequencies for casting with a thickness of 7 mm were determined.
Using the finite difference method developed model of solidification. The model includes the change in the physical properties of materials on the temperature, the existence of phase transitions and complex boundary conditions. Using the model was performed comparison the influence of materials, boundary and initial conditions to the changing temperature fields of castings and molds. The results can be used to produce castings of alloys with a high melting point and to develop new alloys with nano - and micro-crystalline structure.
The authors have developed and implemented programmatically a model for calculating the cooling and solidification the alloys during formation of bimetallic castings. The model covers a wide range of boundary and initial values. The article considers the influence of temperature and time conditions on the heat transfer in sequential pouring of two alloys. The model is public and available on http://e-sim.nn2000.info.
A model that calculates the rates of cooling of liquid metal over the casting section atthe liquidus temperature by the finite difference method is created and programmed.By the cooling rates, the empirical formula determines the grain size. The following process parameters are taken into account: casting and molding materials, cast and mold dimensions, their initial temperatures, and the coefficient of contact thermal resistance.
To match the flow rate of the molten metal particles and heat from the casting surface,the algorithm of the control system was designed. For the production of new alloys and forming parts and for the development of spray casting, method of electromagnetic dispersion of the metal has been proposed.
The article describes the information environment that allows users to simulate the process of solidification. In this environment, the user can calculate the formation of temperature fields and moving the fronts of phases. The results can be presented in tables and graphs. The information environment is accessible and open to change. Possibilities of practical use of environment has been demonstrated in defining the conditions for obtaining castings with a microcrystalline structure.