Jiangsu Aoguang Corrugated Pipe Co.,Ltd
Address:Shuguang industrial park jiangyan taizhou city jiangsu province China
Expansion Joint, is a traditional Chinese classical furniture processing technology, that is, for the furniture parts with seasonal changes in the normal stretch of the reserved reasonable gap. Its width is generally within 0.3-0.5 cm, the purpose is not to break the furniture frame or corner, the width of the Expansion Joint according to the proportion of the size of the wood and the final use of furniture to determine the regional climate characteristics.
Spring and winter dry weather, after artificial wood production of furniture, the general to stay extension joints, otherwise, the arrival of wet summer, the big edge will rise bad. On the contrary, the material dried in winter. Over the years to install, although it can be loaded up with a strict fit. But the rainy season will certainly rise in the season. Unless it is in the four seasons change little place to do the furniture, but also in the local use. There are different materials should not be the same, relative to the small leaf red sandalwood and pear change the smallest, large foliage and other shrinkage changes relative to the big. High-quality mahogany furniture can find Expansion Joint, and the size is also different. Expansion Joint are mahogany furniture, "self-protection system", the size of the uneven when there is no need to worry about most of the seasonal changes will restore the original appearance.
High-quality mahogany furniture, Chinese-style furniture stresses tenon structure of the production process, do not use a nail, through the tenon and the ingenious combination of the furniture components assembled. It can be seen that the role of Expansion Joint is that when the wood affected by environmental impact shrink or expansion, will not damage the tenon structure, resulting in loose parts of furniture, can not be used normally. Especially now into the dry season, the home humidity is relatively small, mahogany furniture more need this "Expansion Joint" protection.
Mahogany furniture, the material is the most natural, with a certain spirituality, with the surrounding environment temperature changes in thermal expansion and contraction, there is life, there is temperature, there are fresh human nature. Therefore, different seasons are related to the shrinkage joints. Material characteristics determine the size of the shrinkage joints: Expansion Joint in the Ming and Qing Dynasties furniture everywhere, the general Ming and Qing furniture are left with Expansion Joint, in particular, save the edge of the slotted plate combination tenon can not be separated from the Expansion Joint, such as sash ring, Door, chair, desktop, face and so on. The purpose of the Expansion Joint is to prevent the furniture from making the frame or the corners of the furniture; the highest standard of the extension joints is that when the air is wet, the board moves to no Expansion Joint and does not bend the border.
In order to reduce the deformation of wood, mahogany in the production of furniture, there is a strict drying process, some may bake more than a month. Specification of the manufacturers in order to control the quality, sold to different regions of the product moisture content is not the same. Even so, in order to prevent the deformation of furniture, Expansion Joint or must be reserved, and some good technology manufacturers do more secret, it seems that it is a decorative gap. And some manufacturers do solid wood furniture does not leave Expansion Joint, do not leave does not mean that there is no. Because the manufacturers do not absolutely grasp the dry wood, the general moisture content of wood than the air content, so even if the production does not leave the Expansion Joint, furniture will be finished after the seam.
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