博文

Why Should the Cylindrical Formwork be Dislocation Installed

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Cylindrical formwork   has been widely used in building construction, it can be installed without hoisting equipment and built at high place, but some may have doubt that why there are be installed dislocation? Today we will talk with you to understand why the cylindrical formwork needs to be installed in a misplaced position. 1. Dislocation installation can integrally combine the cylindrical formwork on the cylinder, which reduced the joints of the cylindrical formwork and helped improve the demoulding effect of the cylinder. 2. Dislocation installation can reduce the press of the cylindrical formwork, uniform the press of the whole formwork to get better sealing effect at the upper and lower joints. Dislocation installation can make the column very high at one time, which is much stable for taller cylindrical formwork, and avoid the trouble of secondary splicing.

Specification of Wooden Building Formwork

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Building formwork can be divided into steel formwork, aluminum formwork, wood formwork, plastic formwork, large formwork, etc. Today follow us to discuss   wooden building formwork . 1. The main specifications of building formwork are: 915X1830mm, 1220x2440mm, 1250x2500mm, etc. General wooden building formwork specifications are: 1220x2440, also called the big red board; 1830x915, also called the small red board, and special specifications can be customized. 2. Building formwork thickness: 9mm, 12mm, 15mm, 18mm, 21mm, 24mm... 3. Building formwork material: poplar, pine, eucalyptus, birch, hardwood, mixed wood, etc. 4. Types of construction formwork glue: phenolic glue, melamine glue, urine glue, etc. 5. Building template film paper: Taier brown film, domestic brown film, black film, etc.

Why should Wet Wooden Formwork before Pouring Concrete

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Q: Why should wet   wooden formwork   before pouring concrete? A: Wet wooden formwork before pouring concrete is to prevent the formwork from absorbing the moisture in the concrete, which may affect the molding quality and strength of the concrete. The wooden formwork will absorb the moisture in the concrete, especially when at the beginning of pouring, if the formwork is not fully watered and moistened, it will reduce the fluidity of the concrete, and it may easily harden in a short time, and pitting will appear after the formwork removed. In addition, fully watered wooden formwork will tight the gaps and it is not easy to leak grout, and able to avoid edges and corners.

Oriented Strand Board Production Process

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1. Raw material preparation Usually,  oriented strand board  taken 8 to 10 cm small-diameter wood and fast-growing wood as raw materials. Except wood, waste and scraps left over from board processing can also be used as raw materials for oriented strand board. 2. Dry Oriented strand board dryers generally use single-channel dryers, using conventional medium-temperature drying technology. The entire drying process is divided into pre-drying stage, drying stage and equalization stage. In the end, it is necessary to ensure that the moisture content of the shavings is controlled at about 2%. 3. Sorting shavings There are two forms of shavings sorting, one is to use mechanical methods to sort the shavings according to the geometric size through grids of different apertures or set gaps, and the other is to separate the shavings with different densities and suspension ratios by adjusting the airflow speed. 4. Directional paving The shavings of the surface layer are mixed with glue, a...

WPC Decking

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As we all know, flooring can be divided into indoor flooring and outdoor flooring. As an outdoor floor, it must have anti-corrosion and stability, so that the changed weather and the big temperature difference won't affect the quality of floor. Outdoor decking can be found in parks, decks, and riversides.  There are 5 types of outdoor flooring,  WPC decking  is one of them. It is a composite material made of plastic and wood fiber. It is not only has the characteristics of natural fibers, but also has the characteristics of plastic. Its water resistance is very excellent, and the water absorption rate is lower than that of traditional wooden floors, and its abrasion resistance is 3-10 times stronger than wood. Also it has a strong bearing capacity and high machinability. ZMADTO Plywood Co.Ltd.  is plywood division of  ADTO Group . We are professional manufacture in plywood. We supplier all kind of film faced plywood, particle board, MDF board in all kinds and si...

Purpose of OSB Board

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As we know   OSB   is very useful, here we will tell you the exact usage of OSB board. 1. OSB board replace blockboard, three-plywood, five-plywood, formwork, fireproof board, decorative board, and partition in home decoration. 2. OSB board can be used as floors, walls and roofs; I-beams; structural isolation panels; packing boxes; cargo pallets and storage boxes; commodity shelves; industrial desktops; hardwood floor cores; air shielding boards and guardrails; decorative wall panels; On-site concrete forming; container floors; bowling lanes, etc. 3. OSB used as the liner between the solid wood floor and the keel, or the base material of the composite wood floor. 4. Structural panels for furniture and kitchen utensils. 5. Lining boards for building construction, interior panels, heat insulation boards, sound-absorbing boards, ceilings, and wall panels. 6. Construction retaining boards, ditch formwork, backing boards, etc. 7. After the OSB surface is laminated, it can be used f...

Why Density Board is not Used for Cabinet

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Now   density board   is used for solid wood composite doors, no longer use as material for make cabinets and wardrobes, because MDF is not suitable for some reasons, why do you say that? The main reasons is for its characteristics as follows: ① Poor strength. Whether it is low-density board, medium-density board or high-density board, their strength is not good. Since the inside of the density board is made of fiber material, the strength of the density board is very poor, the bearing capacity is very low, which cause density board easy to deform. ② Poor moisture resistance. Because density board is made of fibers, you can find shredded paper inside if you cut it. Density board expands quickly after being exposed to moisture, and slowly deforms with time going. Therefore, density board mustn't be used in humid environments, such as bathroom doorways and window sills. ③ Poor ability to hold nails. This is a very big reason why density board is not suitable for making furniture...