With a view to understanding the performance of blast furnace slag with high Al2O3 content, effects w(MgO)/w(Al2O3), w(CaO)/w(SiO2), and w(Al2O3) on melting (melting characteristic temperature heat) content were investigated by differential scanning calorimeter (DSC) method. Experimental results indicate that end (Tend) for almost all slags has no obvious change increase w(CaO)/w(SiO2) will rai...

This paper presents a 4 kW, 450 kHz voltage-source inverter with a series resonant circuit for induction melting applications, which is characterized by the power control based on pulse density modulation (PDM). The pulse-density-modulated inverter makes an induction melting system simple and compact , thus leading to higher efficiency. A modulation strategy is proposed to realize the induction...

Introduction: Protecting the vital organs in radiation therapy is one of the most important issues. Cerrobend alloy, the most common material used as the shield, is melted several times and used for different patients. In this study changes in attenuation coefficient of cerrobend due to melting was investigated.   Materials and Methods: In melting furnace, ...

The manufacture of optical fibers typically involves taking a solid glass cylinder (a blank or preform), heating it up to melting temperature by feeding it through a cylindrical furnace (the drawing tower), and drawing the molten blank from the other end of the furnace at high speed (tens of meters per second). Since the drawing speed is much faster than the feeding speed (by a factor of at lea...

The nickeland iron-aluminide alloys are an important class of materials because of their unique resistance to oxidizing, carburizing, and sulfidizing environments at high temperatures. They also provide an interesting combination of high-temperature strength and wear resistance. Many applications have been identified for these materials including: furnace fixtures, heating elements, pumps, hydr...