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通过多种试验方法,对高强度模壳用增强剂粘土的作用机理初步有了新的认识,并推荐铝矾 土代替石英粉和其他粘土用于高强度模壳生产,大大提高了模壳的高温性能。 采用碱式氯化铝代替氯化铵作硬化剂,大大改善了工人的劳动条件,减少了设备腐蚀;采用 水玻璃和碱式氯化铝分别与铝矾土和石英粉配制的涂料交替浸涂的新工艺,革除了自然干燥与化 学硬化两道多次重复的工序,从而提高了生产效率。
Through a variety of test methods, a preliminary understanding of the mechanism of action of the reinforcing clay for high-strength formwork has been obtained. It is recommended that bauxite be used instead of quartz powder and other clays for the production of high-strength formwork shells. High temperature performance. The use of basic aluminum chloride instead of ammonium chloride as a hardener has greatly improved the working conditions of workers and reduced the corrosion of equipment; alternate dip coating of water glass and basic aluminum chloride with bauxite and quartz powder, respectively The new process, in addition to natural drying and chemical hardening of the two multiple repeated processes, thereby increasing production efficiency.