Solid wood furniture for the principle of expansion joints of < span style ="The font - size: 14 px;"> if we carefully observe some high-grade solid wood furniture, will find that the side panel in furniture often has a wide not narrow gap.The gap called expansion or contraction joint, it is not caused by furniture design and production of mistakes.On the contrary, expansion joints is intended to intelligent & otherIdeas & throughout;.It's there, to curb wood & other;Heat bilges cold shrink & throughout;The physical characteristics, improve the service life of solid wood furniture has played a huge role.
For one, real wood furnitureWhat are for expansion joints?
Expansion joints, it is a kind of traditional processing technology of the Chinese classic furniture, with annatto furniture knows that a pure traditional annatto furniture is bound to keep the Ming and qing dynasties furniture fine craftsmanship & ndash;& ndash;Mortise and tenon joint structure, do not use a nail through the tenon and bases of clever combination of furniture parts assembled.Expansion joint is to when wood is affected by the external environment and shrinkage or expansion does not hold to crack the border or Angle of furniture tenon, lead to loose furniture parts, can't normal use.
On the surface of the solid wood board face scalingSewing process, it is necessary.Call it the artists seam or sewing process.For more on interfaces, and it is two different wood grain to place!
Second, it is advisable to how much the size of the expansion joints?
The size of the expansion joint is very important, expansion joints size according to the proportion of timber size and eventually use regional climate characteristics of furniture to determine.Expansion joints generally within 0.3 0.5 cm, the width of more than 0.5 cm is ugly, if the panel is not too wide, more than 0.5 is unnecessary, expansion joint too wide, usually wood not dry wood for making furniture.
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Third, stay expansion joints are influenced by what?
In order to reduce the deformation of lumber, wood in front of the furniture is made of, there is a strict drying process, some could be baked for more than a month.Specifications of the manufacturer in order to control the quality, sold to different parts of the productionProduct moisture content is also different.Even so, in order to prevent deformation of furniture, expansion joints, or must be reserved.
Wood longitudinal shrinkage is not big, two head generally don't like to leave expansion joints, some manufacturer seam is all around, it looks relatively nice.Because the seam has decided the furniture both wet and dry conditions have seam (wood longitudinal contraction, minimal at both ends, the seam is affected by the air dry wet small, expansion joint has been exist).There are some manufacturers do furniture and without expansion joint, no not representative must not, because there is no absolute master manufacturer of wood drying, general lumber moisture content is higher than the airWater, so that even if without expansion joint, when producing furniture production is completed will also have a seam, and quite a number of furniture regardless of dry and wet seasons have seam, just different sizes.
Areas that dry humidity difference big all the year round, expansion joint is a must.Different seasons, wood dry wet all stay with contraction joints, leave much contraction joints.Monsoon air humidity is big, although after artificial wood is dry, but still can absorb the moisture of wood in furniture manufacture process, the volume increases, generally do not need to leave expansion joints, even if no, winter climate is dry also can appear expansion joint;Spring and winter the weather is dry, after peopleIndustrial drying wood for making furniture, generally take expansion joints, otherwise, the wet summer arrives, the big edge up bad.
Fourth, other considerations for
Note, if it is solid wood furniture, so a desktop, board face, surface generally do not have sewing process.If you have, just used in two cases, one is the desktop board's frame structure, the second is the desktop has other special process or material.The frame structure was the most commonly used plate wood combination furniture, should pay attention to distinguish.
Finally, remind everybody, expansion joints are solid wood furniture & otherSelf protectionTo protect the system & throughout;, size appeared not divide evenly without having to worry about, most will be restored after seasonal change.
From:
Beijing office furniture companyUnder a
The advantage of solid wood furniture,