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Refractory materials improved intended to constitute the interior lining of the furnaces for metallurgical and more specially electrical induction furnaces has
Refractory materials improved intended to constitute the interior lining of the furnaces for metallurgical and more specially electrical induction furnaces has
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机译:经过改进的耐火材料,旨在构成冶金炉,特别是电感应炉的内衬,具有
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1513210 Silica-based refractory F V MERKER 24 Dec 1976 [31 Dec 1975] 54046/76 Heading C1J [Also in Division F4] A refractory material consists of a mixture of crushed and graded silica, e.g. quartz or quartzite, a sintering agent for the silica, and a carrier compound of Cr 2 O 3 , said mixture having a granulometry such that after tight packing its porosity will be less than 25% and that after sintering or calcination the quantity of Cr 2 O 3 present in the refractory will be between 4% and 8% of the total. The sintering agent may consist of B 2 O 3 or H 3 BO 3 . A small quantity of binding agent, e.g. phenolic resin, may also be used.
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机译:1513210二氧化硅基耐火材料F V MERKER 1976年12月24日[1975年12月31日] 54046/76标题C1J [也在F4分部中]耐火材料由压碎和分级二氧化硅的混合物组成,例如石英或石英岩,二氧化硅的烧结剂和Cr 2 O 3的载体化合物,所述混合物的粒度为,在紧密装填后其孔隙率将小于25%,并且在烧结或煅烧后其含量为Cr 2耐火材料中存在的O 3占总量的4%至8%。烧结剂可以由B 2 O 3或H 3 BO 3组成。少量的粘合剂,例如也可以使用酚醛树脂。
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