Calcium silicate board production mode, the copy method and the quality of the comparison method, which prawn know
Japan, the reason why Taiwan is not the use of pulp, not the level of technology is not enough, but because their main product is the density of 0.9g / cm3 below the low density board, the high density board rarely done, can not use the press, Can not make up, can not make qualified low density board. Therefore, it can be said that the applicability of the copy method is higher, and the flow slurry method is only suitable for medium and high density board, even to do low density board, its quality and copy method can not be compared. In my opinion, copy the law is the way out, after all, from the green energy-saving point of view, low-density board will be the mainstream.
At present, with the improvement of process control level, the gap is not so big, the capacity of the upstream slurry method by increasing the width of the blanket, the quality of the press and template surface treatment to enhance, but the relative equipment investment will be large ( Japan and Taiwan can not copy the template, but because of the differences in the level of process control, the majority of domestic product copy quality products can not reach the level of the Japanese level).
There are two ways to integrate business, such as Etienne, with a blanket, the production of different products can be two ways to switch at any time.
Flow pulp method I have not done, but the principle is not difficult, flow pulp method is only used in domestic, copy the law elsewhere I do not know, but Japan and Taiwan are copy the law.
The advantage of the flow slurry method is good control, easy to operate, the disadvantage is relatively flat flatness of the board, the same formula strength is relatively low, low capacity; copy method just the opposite. This is related to the two processes of cloth pulp dehydration.
