Expansion joints, the processing technology of traditional Chinese furniture, a small slit with a width of about 0.3 to 0.5cm, looks inconspicuous, but actually plays a very important role. Many homes have mahogany furniture or go to the furniture city, and people who go to the furniture showroom will find that there is often a gap in the side of the furniture panel, which is what the industry calls "expansion seams."
It is very important to know that this unremarkable "expansion joint" plays a key role. It exists not because the furniture design is wrong or the process is not in place. On the contrary, this small seam is intentional and remains , it exists. The main reason is to curb the ups and downs of mahogany furniture, greatly improving the service life of mahogany furniture . Some manufacturers in the mahogany industry claim that mahogany furniture adopts the so-called “ redwood furniture seamless technology â€. In fact, this is a practice of suppressing the “activity†of mahogany furniture. It is understood that this method is actually using some chemicals to cook redwood raw materials. The wood fiber is destroyed, so that the elasticity of the "carbonized" mahogany has been greatly reduced, and the activity of wood has also lost more than half. The inactive mahogany furniture is destined to be circulated for hundreds of years. If it is to be summarized in one sentence. That is: the mahogany furniture that comes out of this way has no soul!
As a traditional Chinese furniture processing technology, the expansion joint is designed to prevent the mahogany furniture from shrinking due to seasonal changes . The width of the expansion joint is generally controlled between 0.3 and 0.5 cm. The purpose is to prevent the frame or the enamel of the furniture from rising due to the weather. The weather of the furniture and the specific gravity of the wood determine the expansion joint. The degree of breadth . Especially in the spring and winter season, the furniture is dry in spring and winter. Generally, there must be expansion joints. Otherwise, the mahogany furniture will be easily cracked when the wet season arrives. Unless it is some furniture made in places where the temperature difference does not change much in the whole year, it is limited to local use. Otherwise, if the furniture in other places does not have expansion joints, the furniture will easily rise in the rainy season. In particular, some places have furniture in the "Purty Rain" season, which requires expansion joints to save. In these places, mahogany furniture will be greatly discounted if there is no expansion joint.
The expansion joint can be said to be the "self-protection system" of mahogany furniture . Whether it is high-quality mahogany furniture or low-quality mahogany furniture, you can find traces of expansion joints, and the size is also different. The mahogany furniture uses a traditional enamel structure to combine the various components. When the wood shrinks or rises due to changes in the weather environment, the æ¦«å¯ structure is destroyed, and the various parts of the furniture are prone to loosening, making the furniture It can't be used normally, which requires special expansion joints to protect the enamel parts of the furniture. With it, you don't have to worry about the weather. It is a bit exaggerated, but there is no doubt that the effect of the expansion joint on this aspect of the problem is very huge.
There are four seasons in a year. Not all places have the same seasons, and each season is associated with expansion joints. The high standard of expansion joint: When the air is wet, the furniture panel moves to no expansion joint, that is, when the furniture is up and down, the expansion joint is just closed, there is no gap, but it will not crack the frame, which is a high standard. . The mahogany has a wood drying process before it becomes a finished furniture. This process is strict. Sometimes the drying process will last for more than a month, because it is related to the deformation of mahogany furniture. Reputable mahogany manufacturers sell different areas of furniture with different water content standards, because the climate varies from place to place, and the wood moisture content is naturally different. But even in order to prevent the deformation of the furniture, the expansion joints should be reserved. After all, it is safer to add more measures. The expansion joints left by the manufacturers with good technology will be more concealed and look like the gaps in the decoration; some manufacturers make mahogany furniture without leaving the expansion joints, but you have to know that not staying does not mean no. The manufacturer has no confidence in the drying of the wood. When the moisture content of the wood is higher than the water content in the air, even if there is no expansion joint at the time of production, there will be seams after the furniture is finished.
It is worth mentioning that when the expansion joints are uneven in size, you don't have to worry about it. This is just the response of the expansion joint to the weather changes. After the weather returns to normal, most of the expansion joints will naturally return to their original state. .
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