The article describes measurement of currents and voltages in submerged arc-resistance electric furnace which were done to identify arc parameters. Waveforms of registered currents and voltages have been shown. Characteristics of arc developed in original C# software have been presented. Streszczenie. Artykuł opisuje pomiary prądów i napięć w obwodzie pieca elektrycznego łukowo-oporowego z łuki...

The melting temperatures have been determined for a wide range of substances as a function of pressure. In the present work, Teflon (polytetrafluoroethylene) was investigated up to 30 kb and the decomposition temperatures, and the melting temperatures of silver chloride and iodine were determined up to 30 kb and 20 kb, respectively. General Technique. -The pressure was generated with a piston-c...

electrical properties of fruits are accepted indicators for detecting fruit quality. electrical resistanceone reluctance can detect quality factors and are sensitive to variations in the concentration and stateof water. therefore, these properties can be associated with maturity, damage, overripe condition,decay or other quality factors. in most of previous research on electrical resistance and...

In this paper a method to make inputting electrical model upon factors that affect melting process of high ultra power(UHP) electric furnace by using fuzzy rule and regression model is suggested and its effectiveness is verified with simulation experiment.

Carbon with a metallic reflection was prepared from polyaniline (PANI) vapor deposited on the inner quartz wall of furnace. Electron probe microanalyzer analysis proved that resultant contained carbon, oxygen, nitrogen, and sulfur atoms. A Dysonian line shape paramagnetic properties observed for resulting carbon PANI in electron spin-resonance spectroscopy measurement. The resistance vs. temper...

Electrochemical nature of metallurgical reaction arouses more and more attentions, and the most closely related is the electrical conductivity of molten slag. The electrical conductivity of molten slag is not only an important physical property that plays a prominent role in modeling and operating the electric smelting furnace and optimizing the metallurgical process, but also important for und...

In this study, the feasibility of using steel fibers and shavings in roller-compacted concrete containing coarse basic oxygen furnace slag aggregate was investigated order to improve its mechanical properties produce an electrically conductive environment-friendly concrete. For purpose, various samples 0.4, 0.7, 1% fiber 3, 5, 7% shaving were fabricated. The compressive strength, indirect tensi...

In this study, the influence of CO2 curing on corrosion resistance reinforced alkali-activated compounds is investigated. Fly ash (FA) and blast furnace slag powder (BFS) are used as mineral admixtures. The specimens were subjected to dry–wet alternations with 3% NaCl, simulate a concrete structure under environment. ultrasonic velocity, mass loss rate, electrical characteristics (such resistan...

Effect of clamping pressure on electrical resistance between Gas diffusion layer (GDL) and bipolar plate is a very important parameter in Proton exchange membrane (PEM) fuel cells. For investigation of this matter some researches have been done in these years. But there is not an experimental investigation of clamping pressure effect on PEM electrical resistance. In this paper, some experimenta...