The raw materials for rosewood furniture are relatively expensive. Experts point out that in the drying of rosewood, the quality of drying and reducing downgrading losses should be the primary considerations. To achieve these two points, scientifically mastering the drying process is the most important prerequisite.
Fresh rosewood timber contains a large amount of moisture, which will continuously evaporate under specific conditions. The natural evaporation of moisture can cause defects such as dry shrinkage, cracking, warping deformation, and mold growth in wood, seriously affecting the quality of wood products. Therefore, wood must undergo drying treatment before being made into rosewood furniture. If drying is not done properly, various problems will arise in subsequent component processing, assembly, and painting, thus affecting the quality of the finished product. Correct drying treatment can overcome the aforementioned wood defects, increase the mechanical strength of wood, improve the processing properties of wood, and extend its service life. It is an important technical measure for the rational use and conservation of wood, and an indispensable important step in wood processing production.
Rosewood Furniture
Special top-grade rosewood, black acid branch, Vietnamese yellow flower li, and small-leaf sandalwood are all difficult-to-dry broad-leaved woods. The movement of water in rosewood is very slow, and the water channels in the wood are not smooth, so there is a significant difference in moisture content between the surface layer and the slightly deeper inner layer. During the wood drying process, in order to increase the drying speed of the wood, eliminate stress during the drying process, relieve the moisture gradient, and balance the final moisture content of each board in the pile, preheating, intermediate, equilibrium, and final treatments need to be carried out multiple times.
Rosewood Sofa
External factors affecting wood drying include the temperature, humidity, air circulation speed over the wood surface, and pressure of the drying medium; internal factors mainly include species, thickness of the wood being dried, and initial moisture content. Under the condition that the drying equipment in various parts of the drying room can ensure normal working status, the drying process conditions of wood are the key to ensuring the drying cycle and quality of wood.
Rosewood Tea Chess Chair
The wood drying standard is one of the important references for guiding wood drying production. Rosewood species used for materials are relatively single. After understanding and mastering the required drying quality and final moisture content of the wood being dried, corresponding drying process conditions can be selected and formulated. The core content is to choose the drying standard and determine the heat and moisture treatment conditions based on the species and thickness of the wood being dried. Under the premise of ensuring the quality of wood drying, improving the drying speed, saving energy consumption, reducing drying costs, and generating the greatest economic benefits.
The core content of the wood drying process conditions is the wood drying standard, and the softness or hardness of the drying standard basically determines the wood drying cycle and the quality of wood drying. Therefore, phenomena such as cracking, deformation, and uneven final moisture content that occur during the drying process belong to wood drying defects produced during the drying process. Among them, cracking is also called dry cracking, which includes end cracking, surface cracking, and internal cracking; deformation includes longitudinal bending, transverse bending, warped bending, and twisting.
Applying modern drying technology, researching and improving the drying quality of rosewood furniture materials is crucial for improving the quality of rosewood furniture products and stabilizing and expanding China's share of the international and domestic markets for rosewood furniture. It is of great significance for promoting rosewood culture and promoting the development of traditional Chinese furniture. Researching and improving the drying quality of rosewood furniture materials is a necessary foundational technical investment for the further development of rosewood furniture enterprises and a prerequisite for capacity building. (Editor: Tian Tian)