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目前,在用硅酸铝纤维毡贴面改炉时,需用大量粘结剂,但市售粘结剂价格较贵,为节约改炉费用,我们制成一种价廉实用的粘结剂,经实际使用,情况良好,具有和市售粘结剂相同的效果。配方:水玻璃加3～4％的Al_2O_3粉(300号)或SiO_2粉(9号精白)。配制方法是:将盛有一定量水玻璃的容器放在炉子上加热,然后徐徐加入3～4％的Al_2O_3或SiO_2粉末,并不断搅拌,待温度达80℃左右即可停止加热而空冷,为防止表面结皮,仍需不断搅拌,冷至室温后呈胶体状,即
At present, the use of aluminum silicate fiber blanket surface modification furnace, the need for a large number of adhesives, but the more expensive commercial binders, in order to save furnace costs, we made a cheap and practical binder , In actual use, in good condition, has the same effect as the commercially available binder. Formula: water glass plus 3 ~ 4% of Al 2 O 3 powder (300) or SiO 2 powder (9 # white). The preparation method is as follows: the container containing a certain amount of sodium silicate is heated on a stove, and then 3 to 4% of Al 2 O 3 or SiO 2 powder is gradually added, and stirring is continued until the temperature reaches about 80 ° C. to stop heating and air- Surface crust, still need constant stirring, cooled to room temperature was colloidal, that is