Rongzun Furniture tells you that the "pit" of solid wood furniture is a craft

The crafts of solid wood furniture have their own characteristics, especially the physical properties of the thermal expansion and contraction of the wood during use, as well as a series of maintenance, which are common to the public. Mr. Chen, who lives in the west of the city, ordered a set of northeast old elm furniture. The color of the logs and the simple design complemented the home-style Nordic style. He found that the coffee table and the face of the TV cabinet each had a rectangular strip, just like a gap. Mr. Chen believes that such a pit is not the connection of the furniture itself, but deliberately, as if it is designed like this, but it will fall into dust or small debris during use, it is not convenient to clean, it is better not to design like this. .

With the question of Mr. Chen, the reporter consulted a professional. It turns out that these pits seem to increase the trouble of our cleaning, but in fact it is a special process of solid wood furniture. "The existence of this, to curb the physical characteristics of wood thermal expansion and contraction, and improve the service life of solid wood furniture has played a huge role in protection." The professional explained. It is understood that this kind of crater gap is called expansion joint or shrinkage joint, which is a traditional processing technology of Chinese classical furniture . This is like the traditional Chinese furniture making process - the 榫卯 structure, without the use of a nail, the assembly of the furniture by the combination of 榫 and 卯. Shrink seams are also one of the traditional furniture making processes.

In daily life, careful citizens can find that high-end solid wood furniture, especially mahogany furniture, has a gap at the side of the panel. Such a gap is for the purpose of shrinking or expanding the wood when it is affected by the external environment, so as not to crack the frame or corner of the furniture, causing the furniture parts to loosen and cannot be used normally. In the spring and winter, when the furniture is dried by wood, it is generally necessary to leave the expansion joint. Otherwise, after the wet summer arrives, the big side will rise and fall. The materials dried in the winter, although they can be installed tightly. But the rainy season is bound to rise. It is understood that in order to reduce the deformation of wood, when making solid wood furniture, the wood has a strict drying process, and some may have to be baked for more than a month. In order to control the quality of the regulated manufacturers, the water content of products sold in different regions is also different.

In fact, the size of the expansion joint is also a matter of learning, playing a very important role in the use of solid wood furniture. Professionals believe that the width and width are determined by the specific gravity of the wood and the regional climate characteristics of the final furniture used. The width of the expansion joint is generally within 3 to 5 mm, and it is unsightly to exceed 5 mm. If the shrinkage seam is too wide, the wood is generally not dried when the furniture is made, and consumers should be particularly careful when purchasing.