As the saying goes, depending on local conditions, this is still scientifically based. For example, solid wood composite doors are more common in the south, and the north is generally solid wood doors, mainly in different geographical environments. What are the materials used in the solid wood composite door? Let's look at it together.
1. Structure and characteristics of the laminated timber:
Wood is a "sponge body", "wet ups and downs" is one of its attributes, and the asymmetry of the wood structure determines the different wet and shrinkage rates of the wood. Through a large number of scientific experiments, the vast majority of wood, the chordwise (circumferential aspect) wet ups and downs are doubled in the radial direction (diameter direction), and are longitudinally (the growth direction of the tree) twenty times, and the tensile strength On the contrary, the longitudinal tensile strength of wood is twenty times the relationship between string and radial. As we all know, the criss-crossing and corrugated wood boards like plywood are reduced by more than ten times due to the lateral wet-up and shrinkage rate, which is the real reason for the widespread replacement of solid wood panels.
Obviously, the vertical and horizontal (two-dimensional) laminated materials can replace the large-scale dip material, which can solve the deformation problem, but still can not solve the deformation problem of the horizontal veneer. If the vertical and horizontal (two-dimensional) laminated materials are used, the two layers are laterally glued. The veneer not only solves the deformation problem, but also solves the problem of lateral wet ups and downs. Because the lateral tensile strength is increased by a dozen times, the lateral cracking problem is also solved and the lateral deformation is reduced. We call this kind of integrated material It is a three-dimensional laminated material for vertical and horizontal.
Among the indoor wooden decorative materials, the materials expressed in solid wood form have always been the most luxurious vitality. The solid wood composite door series products such as door covers and wooden doors are all based on vertical and horizontal three-dimensional laminated materials (or two-dimensional vertical and horizontal laminated materials). The curved pressure (flat pressure) hot pressing process, and the processing of precious wood veneer, on the one hand, it has solid wood characteristics and is luxurious and vital, on the other hand, it has smaller deformation and cracking than all solid wood products. And the wet ups and downs, and the price is relatively low, which is also the basic characteristics of the solid wood composite door series.
2. Three-dimensional structure and characteristics of medium density fiberboard:
Medium density fiberboard is a kind of board which is made of wood fiber or other plant fiber and is applied with urea-formaldehyde resin or other synthetic resin under the condition of heating and pressing. It is usually thicker than 1.0mm and has a density of 450-880KG/cubic. Meter.
Medium Density Fibreboard is one of the most artificial woods in the range of artificial wood. The structure is uniform, the density is moderate, the surface of the board is smooth and delicate, and it is easy to carry out various finish treatments, the dimensional stability is good, the core layer is uniform, the surface and the edge of the board have good mechanical processing and molding processing performance, and the thickness and size specifications vary. Can meet the needs of a variety of manufacturing processes, so medium density fiberboard is widely used in the manufacture of furniture and door products and indoor and outdoor decoration industry, because the medium density fiberboard is a homogeneous porous material, its acoustic performance is very good, used in the manufacture of wooden doors is Has the characteristics of sound absorption.
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