Title translation:VERBUNDMATERIAL,STRANGGUSSKOMPONENTE,STRANGGUSSDÜSE,STRANGGUSSVERFAHREN,GUSSMATERIAL UND材料FÜREINE GUSSSPULE AUS EINER MAGNESIUMLEGIERUNG
Abstract:
Provided is a composite material suitable for forming a part for continuous casting capable of producing cast materials of excellent surface quality for a long period of time and with which a molten metal is inhibited from flowing into a gap between a nozzle and a moving mold. A composite material (nozzle 1) includes a porous body 2 having a large number of pores and a filler incorporated in at least part of a portion that comes into contact with the molten metal, the portion being part of a surface portion of the porous body. The filler incorporated in the porous body 2 is at least one selected from a nitride, a carbide, and carbon.
Abstract:
A molten metal processing apparatus selected from a pump, a degasser, a flux injector, and a scrap submergence device constructed to include at least one element comprised of C/C composite.
Abstract:
The invention relates to a powder comprising more than 70% of glass-ceramic and/or refractory particles, a particle of said powder being classed in the fraction called "matrix" or in the fraction called "aggregate" according to whether it is smaller than, or equal to 100 μm, or bigger than 100 μm, respectively, the aggregate, representing more than 60% of the powder, comprising: more than 40% of particles of a glass-ceramic material having a crystallisation rate of higher than 50% and a thermal expansion value, measured at 700°C, of less than 0.3%, called "glass-ceramic grains"; less than 35% of particles of a refractory material different from a glass-ceramic material, called "refractory grains", the quantity of refractory grains being higher than 10% if the aggregate comprises more than 40% of glass-ceramic grains having a thermal expansion value, measured at 700°C, of less than or equal to 0.15%; the matrix, representing more than 10% of the powder, comprising: less than 30% of particles of a refractory material different from a glass-ceramic material,called "fine refractory particles", the quantity of fine refractory particles being higher than 5%, and preferably lower than 25%, if the quantity of glass-ceramic grains having a crystallisation rate of lower than 75% is higher than 5%; and between 0.1% and 18% of particles of a heat-activatable binder; all of the percentages being weight percentages in relation to the weight of the powder.
Abstract:
Exemplary embodiments of the invention provide a vessel for containing or conveying molten metal therein. At least part of the outer surface of the vessel incorporates a web of metal wires embedded in the surface, the wires being mutually overlaid with openings formed therebetween. The refractory material penetrates into the openings. The web may comprise woven metal wires or non-woven wires or both. The web imparts resistance to cracking (or containment of cracks, once formed) and/or resistance to molten metal leakage if cracks develop. The invention also provides metal containment structures containing such vessels, and methods of producing the same.