Steam-press-free outer wall plate and production method thereof
A production method and technology of exterior wall panels, which are applied in the field of autoclaved exterior wall panels and their production, can solve the problems that vinylon fibers cannot achieve performance, increase air pollution, and vinylon fiber damage, so as to reduce dust pollution and reduce pollution emissions , the effect of reducing environmental damage
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Embodiment 1
[0060] 1) Weigh 15% stone powder, 2% vinylon fiber, 3.5% wood pulp, 71.5% cement, 4% wollastonite and 4% additive made of aluminum powder and aluminum hydroxide according to the mass ratio ;
[0061] 2) Mix and loosen wood pulp and vinylon fiber, then add stone powder, water, wollastonite, cement, additives, etc. in sequence to mix, and the concentration of the prepared slurry is controlled at 15%, and then sent to the bucket slurry after passing through the refiner pool;
[0062] 3) Put the prepared slurry into the headbox through the bucket slurry tank for multi-vacuum dehydration. The slurry concentration is stably controlled at 15-20%, the return water concentration is 0.8%, and the vacuum negative pressure is controlled at 0.01Mpa;
[0063] 4) Take and shape the slab through the forming cylinder, then cut the slab, and stack the cut slab;
[0064] 5) After stacking, each stack of slabs is pressurized and extruded in stages by a large-tonnage press within 1 hour. Specifi...
Embodiment 2
[0070] 1) Weigh 20% stone powder, 1% vinylon fiber, 4% wood pulp, 65% cement, 5% wollastonite and 5% additive made of aluminum powder and aluminum hydroxide according to the mass ratio.
[0071] 2) Mix and loosen wood pulp and vinylon fiber, then add stone powder, water, wollastonite, cement, additives, etc. in sequence to mix, and the concentration of the prepared slurry is controlled at 18%. After passing through the refiner, it is sent to the bucket slurry pool;
[0072] 3) Put the prepared slurry into the headbox through the bucket slurry tank for multi-vacuum dehydration, the slurry concentration is stably controlled at 15-20%, the return water concentration is not more than 0.9%, and the vacuum negative pressure is controlled at 0.015Mpa ;
[0073] 4) Take and shape the slab through the forming cylinder, then cut the slab, and stack the cut slab;
[0074] 5) After stacking, each stack of slabs is pressurized and extruded in stages by a large-tonnage press within 1 hour...
Embodiment 3
[0080] 1) Weigh 18% stone powder, 1.5% vinylon fiber, 3.8% wood pulp, 67.7% cement, 6% wollastonite and 3% additive made of aluminum powder and aluminum hydroxide according to the mass ratio .
[0081] 2) Mix and loosen wood pulp and vinylon fiber, then add stone powder, water, wollastonite, cement, additives, etc. in sequence to mix, and the concentration of the prepared slurry is controlled at 20%, and then sent to the bucket slurry after passing through the refiner pool;
[0082] 3) Put the prepared slurry into the headbox through the bucket slurry tank for multi-vacuum dehydration. The slurry concentration is stably controlled at 15-20%, the return water concentration is not more than 1.0%, and the vacuum negative pressure is controlled at 0.02Mpa ;
[0083] 4) Take and shape the slab through the forming cylinder, then cut the slab, and stack the cut slab;
[0084] 5) After stacking, each stack of slabs is pressurized and extruded in stages by a large-tonnage press with...
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