Asbestos free calcium silicate board there is a crack in the kettle, what is the reason?
Calcium silicate slab blank (blank off off phenomenon is not forming tube adhesion fingerboard blank above)There are two reasons: one is the blank off the vacuum negative pressure is too large, the blank water is too low, low viscosity; two is felt blocked, the billet made worse.The solution is to reduce the negative pressure, strengthen the cloth washing.
Calcium silicate slab crack (crack was autoclaved late cooling stage, it refers to the irregular surface crack, calcium silicate board, or bright or dark is likely to cause fracture, calcium silicate board, low strength, appearance and performance is not up to the requirements)The main reason for the crack is to cool down too quickly.Solution: control the cooling rate, slow exhaust steam.The above is the calcium silicate board equipment in the production of prone to stick, blank, cracks and other phenomena of the reasons and solutions, if you encountered similar problems in production, you can have some reference.
A slab of calcium silicate board production equipment to the emergence of the phenomenon of billet stick (stick billet refers to the calcium silicate board blank attached to the molding cylinder, in shaping cylinder knife when tearing into the surface depression caused by repeatedly feeding back, yield, effect in this case a two quality, three lead to rising production costs)There are two reasons for the phenomenon of sticking: first, the slurry temperature is low, viscosity is big; two, the material is not dehydrated enough, and the moisture content is high.The solution is: 1, improve the slurry temperature, slurry concentration decreased, but the slurry temperature should not exceed 45 DEG C; 2, in the premise of not causing product layer under the vacuum degree increasing, strengthen dehydration, reduce water blanks.
