阅读说明：本技术 制备用于制造铸造模具和型芯的粒状耐火组合物的方法、相应的用途以及用于热处理的再生混合物 (Method for producing a granulated refractory composition for producing casting molds and cores, corresponding use and regeneration mixture for heat treatment ) 是由 李鑫 克里斯蒂安·卢斯蒂格 米尔科·赖诺尔德 玛丽亚·施魏因艾福斯 尼古拉斯·埃格勒 于 2019-09-06 设计创作，主要内容包括：描述了从由耐火材料和含有水玻璃的粘结剂形成的废铸造模具或型芯制备用于制造铸造模具和型芯的粒状耐火组合物的方法,所述方法包括以下步骤：由废铸造模具或型芯提供破碎的材料或者从废铸造模具或型芯制备破碎的材料,其中破碎的材料包含在其表面上具有硬化的水玻璃粘结剂的耐火材料的颗粒和/或颗粒的聚集体,将破碎的材料与基于粒状无定形氧化物的总量以85重量％或更多的量包含二氧化硅的粒状无定形氧化物混合以得到混合物,以及使混合物在400℃或更高的温度下经受热处理。还描述了相应的用途、再生混合物、以及制造铸造模具或型芯的方法。(A method is described for preparing a granular refractory composition for the manufacture of casting moulds and cores from spent casting moulds or cores formed from refractory material and a binder comprising water glass, the method comprising the steps of: providing a crushed material from or preparing a crushed material from a waste casting mold or core, wherein the crushed material comprises particles and/or aggregates of particles of a refractory material having a hardened water glass binder on a surface thereof, mixing the crushed material with a particulate amorphous oxide comprising silica in an amount of 85 wt% or more based on the total amount of the particulate amorphous oxide to obtain a mixture, and subjecting the mixture to a heat treatment at a temperature of 400 ℃ or more. Corresponding uses, regenerative mixtures, and methods of manufacturing casting molds or cores are also described.)