Abstract:
One subject of the invention is a process for manufacturing a glass, the chemical composition of which comprises at least 3% by weight of iron oxide, expressed in the form Fe2O3, comprising a step of electric melting, using electrodes submerged in the molten glass, of a vitrifiable batch material mixture containing at least one manganese carrier wherein the manganese is in an oxidation state higher than +2.
Abstract translation:本发明的一个主题是制造玻璃的方法,其化学组成包含至少3重量%的以Fe 2 O 3形式表示的氧化铁,其包括使用浸没在熔融玻璃中的电极进行电熔融的步骤, 的含有至少一种锰载体的可玻璃化的批料混合物,其中锰处于高于+2的氧化态。
Abstract:
A process for the treatment of a continuous or perturbated stream of liquid material, which process consists essentially of passing the said stream of liquid material through a plasma arc coupling zone in which at least two plasma arcs are coupled at the surface of the liquid stream in order to raise both the bulk temperature of the stream and the temperature of the outer surface of the stream of material, thereby to effect a treatment of the stream selected from thermal, chemical, and a mixture of thermal and chemical.
Abstract:
A process for forming molten material in a melting furnace is disclosed. Bushings made of refractory or noble metal in the furnace are protected from cracking by applying a positive or anodic D.C. bias.
Abstract:
The present invention relates to a system for manufacturing fibres comprising a melting furnace, a crucible within said furnace comprising at least one orifice (6) and at least one induction coil (4) for heating the melting furnace and the crucible. In a typical system according to the invention, the crucible comprises at least a first part (1) made of graphite and comprising said at least one orifice (6). The invention also relates to the use of the system as well as to a method for manufacturing fibres and to said fibres.
Abstract:
Methods and apparatus for producing fibers from igneous rock, including basalt include heating igneous rock by electrical conductive coils to achieve an homogenous melt and forming homogenous fibers from the melt.
Abstract:
The present invention relates to a system for manufacturing fibres comprising a melting furnace, a crucible within said furnace comprising at least one orifice (6) and at least one induction coil (4) for heating the melting furnace and the crucible. In a typical system according to the invention, the crucible comprises at least a first part (1) made of graphite and comprising said at least one orifice (6). The invention also relates to the use of the system as well as to a method for manufacturing fibres and to said fibres.