“精铸壳型新材料鉴定推广会”一九八○年十月十日至十五日在湖南衡山召开,与会的有厂、所、院校51个单位的84名代表,对铝矾土熟料、铝矾土混合料、上店土三种新型壳型耐火材料和硅溶胶的制壳工艺进行了技术鉴定。会上听取了有关硅溶胶制壳工艺及性能研究等10篇技术报告和有关铝矾土熟料、铝矾土混合料、上店土等制壳工艺、性能和应用的14篇技术报告。经过充分讨论, “Promulgation of Foundry Shell New Materials Appraisal” was held in Hengshan, Hunan from October 10 to October 15, 1980. There were 84 representatives from 51 factories and institutes of institutes and institutes attending the meeting, Clinker, bauxite mixture, on the shop three new shell-type refractories and silica sol shell making technology identification. At the meeting heard about the silica sol shell process and performance studies and other 10 technical reports and bauxite clinker, bauxite mixture, Shangdi soil and other shell technology, performance and application of 14 technical reports. After full discussion,