For mass demand, you can choose to buy wood panel products, such as fir finger board and rubber wood finger board on the market, and avoid using density board, plywood, particleboard and other man-made boards made with urea formaldehyde glue. Or use natural fir or pine to make frame assembled door. Do not neglect the structure and material of the door frame and door line, which should be consistent with the door leaf. For composite doors, it is complicated. Because of the invention of urea formaldehyde adhesive, various kinds of wood-based panels were designed and produced, and composite doors were produced. Therefore, formaldehyde has penetrated into the bones of composite doors, and inevitably exists, more or less.

The actual use functions of wooden doors can be roughly divided into: main entrance door, small hall door, bedroom door, study door, living room door, kitchen door, bathroom (bathroom decoration renderings) door, storage room door, balcony door, balcony door, two thermal insulation doors for cold prevention in the north, etc. In addition to the burglar proof door considering the safety factor, most families also choose the solid, thick and simple wooden door type with decorative effect from the perspective of aesthetics and practicality. The door is the first to enter and exit. As there are large items entering and exiting, the size of the door is required to be large. Generally, the size of the door opening is 1000mm to 1200mm, and the width of the door is 920mm. The large door leaf (3:7 ratio) is used. In addition to the safety of entry and exit and the traditional Tibetan habits of the building, except for special requirements, glass doors are generally not used. The entrance hall and living room doors are mostly double leaf, push-pull or folding doors, and their styles are all glass doors divided in square format. This simple wooden door type takes up a small space and is convenient, with simple, bright, transparent and bright features.

Painting is like putting a beautiful dress on an indoor wooden door. "The beautiful wood is like a beauty. It is moist and gentle, and the texture is clear." The moisture content has a great impact on the stability of the wood. Sealing the wood surface with paint can not only prevent the external moisture from rapidly penetrating into the wood, but also prevent the internal moisture from excessive evaporation, so that the internal and external communication of the wood is slow and gentle, and ensure that the wood does not deform. If the log is directly exposed to the air, it is easy to be corroded and oxidized. After painting, the wood will not contact with the air directly, and will always keep the fresh wood color.

To get straight to the point, the formaldehyde we usually come into contact with has been diluted, which is not so terrible as advertised, and there is no formaldehyde free space in our life. If the problem of formaldehyde is very sensitive, try to use raw wood doors or ecological wood doors when choosing wood doors. If you want to use composite doors, do not use density boards and chipboards, but plywood instead. At present, there are almost no research papers on the quantitative nature of formaldehyde hazards in the wood product research system. The test methods and classification standards of formaldehyde content are diverse and not unified, and papers can be published after collecting these materials; Our national standards refer to those of Japan and Europe, referred to as E1 and E2 for short. It can only be said that E1 is better than E2, but there is no concept of how much better it is and how much it affects health. Moreover, the test process is complicated, and the results of different people's tests are biased. The current test methods are not perfect. E0 is basically a concept hype. Therefore, if you are sensitive to formaldehyde, the solution is not to use the wood-based panel made of urea formaldehyde adhesive.

The difference of core materials largely determines the quality of the door. Solid wood doors, also called raw wood doors, are high-end products in wood doors. They are the same in appearance and appearance. Several original boards are spliced into the door core. The frame, door jamb and other parts are all solid wood, without any filler. The main varieties of solid wood doors are walnut, ash, etc. The surface texture of solid wood door is clear and natural, the texture of surface and section is continuous, the knocking sound is thick, and there is no empty sound in each part. Solid wood composite ecological wood door is to use solid wood to make keel frame, fill in the middle with solid wood long strips, short strips of finger joint or glue joint, and then stick wood or paper on both sides, as well as solid wood to make frame and door pocket. There are expansion joints in the door core, which can solve the problem of cracking caused by uneven stress. Therefore, the performance of the composite ecological wood door is more stable than that of the pure wood door. Other solid wood composite doors are more than 2200mm high, and steel pipes will be installed inside to improve the strength and prevent deformation. For high-quality solid wood composite doors, the internal short wood strips are finger jointed. The wood strips, keel frames, frames and door jambs are all the same kind of wood (such as Chinese fir and pine), and the surface is covered with a higher grade of solid wood veneer (such as Hua Li wood). After the pressure glue is combined with the surface treatment, the overall effect is almost the same as that of solid wood doors.

Ecological doors are all made of environment-friendly materials, which changes the style of single solid wood panel in the past. The introduction of German "bridge opening mechanics board" uses the principle of arch bridge opening to make solid wood chips into a unique tubular structure through high-tech processing. It is the most stable and impact resistant structure in mechanics, which can evenly disperse external forces without deformation. Simple wooden door Joining Since the weight is less than half of the same size of solid wood, the light texture can also avoid the deformation of hinges and door jambs caused by excessive load and prolong the service life. At the same time, the eco gate also effectively prevents the diffusion of temperature like a thermos, and maintains a pleasant temperature in winter and summer. customized Simple wooden door And all material selection standards have reached European E1 standards, far ahead of domestic peers. The door leaf edge sealing door pocket is made of high-tech aerospace metal materials with metallic luster to highlight noble life. High hardness, friction resistance, dirt resistance and easy cleaning.