The purpose of hotel furniture custom wood raw material drying and elements

hotel furniture customization is a kind of high grade, personalized custom hotel space, particularly high demand for quality and process. Wood drying is a process with the largest energy consumption in the process of furniture production, also is one of the highest technical content among processes, occupying the important status in the entire custom process. In the process of production of high quality imported timber drying, is the guarantee and improvement of wood quality, reduce the waste of wood and important way to improve the utilization ratio of timber and process. Wood drying technology is good or bad, it is real wood determinants of custom furniture products using lifespan. In order to guarantee the quality of by dry wood, must also control the drying medium ( As is usually the humid air) Humidity, in order to obtain the effect of fast high quality dry wood, this process is called wood drying. Due to the above method is to use, the convection heat transfer from the wood of the external drying method, therefore, also known as the convection drying. In a nutshell wood drying is the way of water by evaporation or vaporization vent process from wood.

the purpose of hotel furniture custom wood drying

1, improve the mechanical strength of wood and wood products, improve the physical properties of the wood. When lumber moisture content is below fibre saturation point, the wood physical and mechanical strength will be increased with its reduced; Wood also easy to sawing and cutting processing, reduce the loss of woodworking machinery.

2, upgrade the wood and furniture products, scientific practice has proved that wood drying process is indispensable in the production. After dealing with the drying of wood or furniture products, the stability of component size and product structure, product quality assurance, class is high; After drying of wood, can guarantee the quality of wood products, improve the use of wood properties, extend the use fixed number of year, thus saving the wood raw materials.

3, to prevent deformation and cracking of the parts. Ruled out the moisture in the air, the wood will cause wood volume contraction. If wood uneven contraction, cracking or deformation will occur. If the wood drying at a level that is adapted to use the environment or the use of the requirements of the state, can keep relatively stable volume size of wood, and it is durable.

4, reduce the weight of the wood, is helpful to improve the carrying capacity of the vehicle. New cutting wood, its water content more than the weight of the itself, even after short-term storage, natural drying, its moisture content is still high. Wood after dry room, about 30 - can reduce its weight 50%, which is beneficial to improve the capacity of the vehicle.

5, prevent the deterioration and decay of lumber and bug eat by moth, prolong the service life of wood products. If wet wood piled up in open air for long, if do not take appropriate measures, will often corrupt or pests. When lumber moisture content is reduced to below 20%, can greatly reduce bacteria and pests and destruction. So, generally in a production unit, the wood drying to the moisture content of 8 - About 12%. Not only ensure the inherent nature and the strength of lumber, but also improves the corrosion resistance of lumber.

the three elements of hotel furniture custom wood drying

1, the preheating stage: at the start of wood drying in temporarily don't let the wood moisture evaporation conditions, outward to preheat the wood, the wood drying heat temperature from room temperature to the required temperature. Generally is along the direction of the thickness of the wood heating, the temperature of the surface layer to the heart to converge, uniform heat through. Way is to, in improving dry indoor drying medium ( Such as air) The temperature at the same time, to increase the humidity of drying medium to saturated or nearly saturated state. Due to the moisture content of lumber is not fall in this stage, so the drying curve is horizontal.

3, slow drying stage: after the constant speed drying stage, basic evaporate clean, free moisture in the wood absorbed water evaporated. As the evaporation process, gradually reduce the number of absorbed water, moisture evaporates when need more and more heat, moisture content of the pace of decline more slowly, so called slow drying stage. At this stage, to improve the moisture evaporation rate, must raise the temperature of drying medium, humidity is reduced, and keep the air circulation speed. When wood is not the absorbed water content of evaporation in meeting the requirements of the final moisture content of wood, wood drying process is over.

2 stage, constant speed drying: drying curve in the curve of the state of a linear constant speed drying stage. Lumber after preheating, according to the requirements of dry, reduce the humidity of drying medium, make the wood to dry. This phase was a period of free water evaporation of wood, as long as the drying medium temperature, humidity and airflow velocity is constant, wood moisture content of the pace of decline also remain the same. When the constant speed drying stage reaches the end of the free water is from the surface of wood, but wood internal free water still exist, but with more resistance to moisture movement, has been unable to maintain the initial drying speed.

constant drying period, the higher the temperature of the drying medium, the lower the humidity, free water evaporation is more intense. There must be enough air velocity to blow and destruction of saturated steam and sluggish layer on the surface of the wood, Boundary layer) To maintain equal drying speed.