Why Control Of The Moisture Content Of Wood Is Necessary?
2024-02-05 11:15Take China as an example, China's furniture exports are growing rapidly, but there are also many problems with claims due to furniture quality when exporting. For example, because the moisture content of furniture is not well controlled, the parts of the furniture will crack, bend and deform do not meet the requirements after arriving abroad, etc., thus being criticized by buyers. Making things difficult and returning goods has caused huge losses to the company.
The moisture content problem is one of the more prominent ones among many problems. Let’s take wooden antique furniture exported to the United States as an example. Generally speaking, the moisture content of furniture exported to the United States should be controlled within 8%. This is mainly due to the following reasons: First, exporting to the United States requires a long process. During container transportation, the temperature inside the container can reach 50℃~70℃, or even higher. This temperature is higher than the temperature during dehumidification and drying. Secondly, under normal circumstances, the relative humidity indoors in the United States is lower than that of the air in our country. The relative humidity and the humidity of the environment in which their furniture is used is generally around 7% to 9%. Therefore, if the moisture content of furniture used under such temperature and humidity does not meet the requirements, the furniture will suffer damage such as cracking, bending, loose structure, and paint bubbles. Even in our country, due to the difference in humidity between the north and the south, the requirements for wood moisture content are also different. For example, the annual average moisture content of wood in Guangzhou in the south is 15.6%, with the highest peak being 18%; while in the north, such as Beijing, the annual average moisture content of wood is 11.8%, with the lowest peak being 9.3%. Therefore, if furniture produced in the south is shipped When selling and using furniture in the north, you must pay attention to controlling the moisture content of furniture.
Wood drying to reduce the moisture content of wood is necessary! High frequency vacuum wood drying machine is a good choice for wood drying. HF vacuum wood dryer can dry timber evenly, making sure the timber is cracked, bent, or discolored while or after drying.
Radio frequency vacuum wood drying machine is so worth it for wood plants! Because RF vacuum timber drying machines can keep the quality of wood, less loss in drying. Especially, some wood plants that export precious wood or high quality timber are more need good and stable wood drying machines!
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