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

Active Publication Date: 2017-09-22
SHANDONG LUTAI BUILDING MATERIAL SCI & TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of this patented product still needs to go through steam curing and drying processes, which can easily cause damage to the vinylon fiber, making the vin

Method used

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  • Steam-press-free outer wall plate and production method thereof

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Experimental program
Comparison scheme
Effect test

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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Abstract

The invention discloses a steam-press-free outer wall plate and a production method thereof, and relates to the field of production and manufacturing of outer wall plates in the building industry. In the manufacturing process of the steam-press-free outer wall plate, high temperature high pressure steam curing is not needed, a large tonnage press is adopted for extruding forming, and the steam-press-free outer wall plate is prepared from, by mass, 15%-20% of stone powder, 1%-2% of polyvinyl alcohol fiber, 3.5%-4% of wood pulp, 65%-71.5% of cement, 4%-6% of wollastonite and 3%-5% of additive which is prepared from aluminum powder and aluminum hydroxide. The invention provides a steam-press-free outer wall plate and the production method thereof. Regarding the raw material, the polyvinyl alcohol fiber is adopted to replace part of wood pulp fiber, the intensity of boards is increased, and the water absorption rate of the boards is lowered; regarding the technology, a steam-press-free maintenance method is adopted, the characteristic of the polyvinyl alcohol fiber is protected, and all indexes of the produced outer plate is superior to an existing production technology; meanwhile, the consumption of energy is lowered, the damage to environment is reduced, and the steam-press-free outer wall plate can be widely applied to all kinds of building inner and outer walls, floors and the like, and can be even massively applied to assembled type buildings to conform to the requirement for development trend of the current domestic building industry.

Description

technical field [0001] The invention relates to the field of production and manufacture of exterior wall panels in the construction industry, in particular to an autoclave-free exterior wall panel and a production method thereof. Background technique [0002] At present, most of the production lines of exterior wall panels and roof panels applied to exterior walls in China adopt the flow method or the copying method, and wood pulp fibers are generally used. Due to the water absorption of wood pulp fibers, the finished boards produced are easy to absorb water, resulting in deformation. cracking. In addition, high temperature and high pressure steam curing is required in the production process of ordinary plates, which requires a large amount of steam supply, consumes a lot of energy, and emits a lot of air pollutants, which is not in line with the current sustainable development strategy. In recent years, the state and governments at all levels have vigorously promoted the i...

Claims

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Application Information

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IPC IPC(8): C04B28/02
Inventor 赵德存张深路敦勇张传印胡伟张健胡晓萌王明智
Owner SHANDONG LUTAI BUILDING MATERIAL SCI & TECH GRP CO LTD
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