硅酸盐砖厂从蒸压釜出来的成品砖,靠近养护车台面的几层砖裂纹比较多,成品率低,这是个带有普遍性的问题。产生这个问题的原因是多方面的,主要的原因及解决办法叙述如下:(1)物料搅拌不均匀,使成型后的砖坯强度均匀性不好。一般说来成型后的砖坯的强度应不小于2公斤力/厘米~2,这样才能使靠近养 The bricks produced by the silicate brick factory from the autoclave have more cracks in the layers of bricks near the surface of the maintenance truck, and the yield is low. This is a universal problem. There are many reasons for this problem. The main reasons and solutions are described as follows: (1) Material mixing is not uniform, so that the strength of the molded brick is not uniform. Generally speaking, the strength of the molded bricks should not be less than 2 kgf/cm~2 so that close