This article contains information concerning of the analysis the possibility of defining refinery qualities of the slag based thermophysical and thermodynamical data. The paper presents a model of slag refining processes and a method of determining the reduction capability of slag solutions. Slag was analysed with the use of the DTA methods for the brass melting conductions. The study of computer program including the satisfactory number of data there are used in to the design a modern device rotating head used for gas-slag refining. It was achieved that the refining gas and fluxes were distributed ever by the rotating head. High effectiveness of the gas-slag refining processes was proved for the brass.

The article presents an integrated analytical and measurement system for evaluation of the properties of cast metals and alloys. The presented platform is an extension of the SLAG - PROP application with new modules, which allow to use information on metallurgical processes in an even more effective way, as well as to evaluate the finished product. In addition, the construction of a measuring station for the analysis of thermal processes taking place in a metal bath allows for precise observation of phenomena together with their appropriate interpretation. The article presents not only the cooling curves of certain copper alloys. The analysis also covered mechanical properties related to hardness, finished products depending on the mold in which the products were cast. In the literature one can find information about the mechanical properties of products in the improved state, usually after plastic or thermal treatment, omitting their properties obtained as a result of a naturally made casting. The article also presents the method of placing information in the database using a convenient graphical tool.

The article describes the optimization of the melting brass. Brasses, as one of the most popular alloys of copper, deserve special attention

in the context of the processes of melting, which in turn would provide not only products of better quality, but also reduce the cost of their

production or refining. For this purpose, several studies carried out deriatographic (DTA) and thermogravimetric (TG) using

derivatograph. The results were confronted with the program SLAG - PROP used to evaluate the physicochemical properties of the

coatings extraction. Based on the survey and analysis of the program can identify the most favorable physico - chemical properties, which

should be carried out treatments. This allows for slag mixtures referred configurations oxide matrix containing specific stimulators of the

reaction. Conducted empirical studies indicate a convergence of the areas proposed by the application. It should also be noted that the

program also indicates additional areas in which to carry out these processes would get even better, to optimize the melting process, the

results.

Discusses an attempt to optimize the operation of an electric furnace slag to be decopperisation suspension of the internal recycling

process for the production of copper. The paper presents a new method to recover copper from metallurgical slags in arc-resistance electric

furnace. It involves the use of alternating current for a first period reduction, constant or pulsed DC in the final stage of processing. Even

distribution of the electric field density in the final phase of melting caused to achieve an extremely low content of metallic copper in the

slag phase. They achieved by including the economic effects by reducing the time reduction.

A special Slag-Prop Cu database has been developed to archive data from laboratory and industrial tests related to post-reduction slags. In

order to enrich the data areas, it was decided to design a system for measuring the temperature of the liquid slag and its viscosity. Objectives

of research work are to gather information on the properties of post-slags such as the temperature of liquid slag and its viscosity. The

discussed issues are especially important in the foundry practice. Designed research stand and using of database applications can greatly

facilitate the work of metallurgists, foundrymen, technologists and scientists. The viscosity measurement was developed and presented

earlier. The author's analytical methodology was supplemented by a thyristor measuring system (described in the article). The system

temperature measurement can be performed simultaneously in 3 ways to reduce the measurement error. Measurement of the voltage mV -

using the Seebeck effect can be measured throughout the entire range of thermocouple resistance, up to 1300 °C. Direct temperature

measurement ⁰C - measurement only below 1000 ⁰C. Additional measurement - the measurement can also be read from the pyrometer set

above the bath. The temperature and the reading frequency depend on the device itself. The principle of measurement is that in a molten

metal / slag crucible, we put a N-type thermocouple. The thermocouples are hung by means of a tripod above the crucible and placed in a

crucible. The thermocouple is connected to a compensating line dedicated to this type of thermocouple. The cable is in turn connected to a

special multimeter that has the ability to connect to a computer and upload results. Temperature measurement can be performed

simultaneously in 3 ways to reduce the measurement error. The Sn-Pb alloy has been subjected to testing for proper operation of the device.

In this foot should be observed the supercooling of the liquid, which initiates the crystallization process and in which latent heat begins to

exude raising the temperature until the coagulation temperature is reached.

The scope of work included the launch of the process of refining slag suspension in a gas oven using a variety of technological additives.

After the refining process (in the context of copper recovery), an assessment of the effect of selected reagents at the level of the slag

refining suspension (in terms of copper recovery). Method sieve separated from the slag waste fraction of metallic, iron - silicate and

powdery waste. Comparison of these photographs macroscopic allowed us to evaluate the most advantageous method of separating

metallic fraction from the slag. After applying the sample A (with KF2 + NaCl) we note that in some parts of the slag are still large

amounts of metallic fraction. The fraction of slag in a large majority of the elements has the same size of 1 mm, and a larger portion of the

slag, the size of which is from 2 to 6 mm. Definitely the best way is to remove the copper by means of the component B (with NaCl ) and

D (with KF2

). However, as a result of removing the copper by means of component C (with CaO) were also obtained a relatively large

number of tiny droplets of copper, which was problematic during segregation. In both cases we were able to separate the two fractions in a

fast and simple manner.

Trial series of cast alloy MO59 obtained from qualified scrap was investigated. SEM and TEM of resulting precipitates were conducted.

The SEM analysis demonstrated the dependence of silicon, phosphorus, iron, chromium and nickel in the composition of the so-called

hard precipitates. TEM analysis showed the formation of phase AlFeSi and AlCr. Made studies have shown the important role of the

composition of the batch melts brass CuZn39Pb2 type. The analysis of SEM and TEM resulting precipitates pointed to the formation of

various forms of divisions, only one of which was described in the literature character of the so-called hard inclusions. The SEM studies

demonstrated the dependence of the occurrence of inclusions rich in silicon, phosphorus, iron, chromium and nickel. In contrast, additional

TEM analysis indicated the formation of AlFeSi phase type and AlCr. The results of the analyses referred to the structure of the batch. Due

to the difficulty of obtaining recycled materials that do not contain these elements necessary to carry out further analyzes in the direction

of defining the role of phosphorus in the formation of the so-called hard inclusions.