Recently, some friends have reported that the newly purchased mahogany home will sometimes make a similar burst of sound, and it is especially obvious at night, which makes people afraid. What the hell is this all about? Mo pan! Let's uncover the mystery one by one.
First, the cracking of the wood during the drying process
When the wood has just been felled, there is a lot of water. During the process of making the furniture, there will be a drying process. After drying, the water will be greatly reduced. However, due to the change of the dry and wet seasons, the moisture will change, and then the sound will be heard.
Second, thermal expansion and contraction lead to internal structural activities
The mahogany furniture is a squat structure, and the internal structure of the mahogany furniture has a small movement. For example, when assembling mahogany furniture, the structure may not be completely installed in place for some reasons, or there may be some misalignment and competition, so after a period of time, due to temperature The change of humidity, thermal expansion and contraction, makes the structure of the concrete self-adjust to reach the proper position and emit a popping sound.
Considering the problem of thermal expansion and contraction of mahogany furniture, many mahogany furniture has a slit, called “expansion jointâ€, which acts to prevent internal masonry when the mahogany furniture shrinks or expands due to environmental influences. The å¯ structure is rendered unusable.
Third, the processing accuracy of the frame part
When the frame is installed, the edge spring is inserted into the side groove, and the inside of the side groove is not on a horizontal line, and there is a height difference similar to the step. After the core board is installed, it is not completely homing, which means that the edge spring and the side groove are still relatively strong. In the spring and autumn seasons, the newly-made mahogany furniture will burst when the thermal expansion and contraction occur, and the internal structure will be restored. Just like the joints of human bones and joints, if you are slightly misplaced, you will be slammed in one move.
The most prone to the popping sound is the structural part of the furniture core board, the drawer board and the mountain board. The problem lies in the processing precision. The side grooves of the frame are not open on a straight line, and may be one to two millimeters apart, or the core plate is not slightly curved on one plane. The season changes, and the pumping rises, and the stress change has a sudden release process. For example, in the past, the newly built large wooden beam structure of the house, the frame is not fully installed in place, after a period of use, the 相 will be completely interlocked.
Fourth, the season and humidity changes
The sound of rosewood furniture that changes with the seasons and humidity is a natural phenomenon. What is particularly evident is the new furniture that has just been manufactured. Whether it is new mahogany furniture or old mahogany furniture, there will be a process of re-adapting to the environment when it is disassembled and assembled, and it will make a sound.
V. Environmental changes
Old mahogany furniture was transported from A to B. Even in the same city, it is normal for the mahogany furniture to make a sound due to changes in the surrounding environment. Southern furniture or furniture shipped to the north or north will be transported to the south, and there will be an adaptation process that will produce a sound.
In general, mahogany furniture as long as it does not crack and does not deform, will not affect the use, as the burst sound will disappear after a period of time, do not have to be too alarmed, pay attention to the daily maintenance of mahogany furniture.
The CAS Registry number of Poly(L-lactic acid) PLLA is 33135-50-1. It is white powder. We can provide Intrinsic viscosity from 0.30-2.25 dl/g, Mw from 6000-30000.
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