The processed square timber can be divided into small square, Chinese square, generous square and large square.
In the past, it was mainly used to make furniture and other products.
In the plum rain season, pay attention not to rain and water, so as to avoid cracking, decay, warping, paint peeling and darkening of the building square wood.
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It is generally used for decoration and door and window materials, formwork support and roof truss materials in structural construction, or various wooden furniture.
Dry wood is often easy to nail in, while wood with high humidity is difficult to nail in.
The moisture content of wood can be judged from the drying method of wood.
Generally speaking, it is normal for the moisture content of the dried wood to be between 8-12, and cracking and warping will not occur in use.
The timbers in the room are also afraid of dirt.
Construction wood includes wet wood and dry wood.
At present, the drying methods of wood are machine drying and natural drying.
The square wood used for construction is the square wood, which is the general term of the plate and square wood made by longitudinal sawing of logs.
120 * 40MM, which is often used as the frame of the door.
It is sawn into square strips of certain specifications and shapes according to the actual processing needs.
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The width is more than three times of the thickness is called “plate”; Rectangular timber with width less than three times of thickness is called “square timber”.
For example, some water-soluble dirt can be wiped with orange peel water to remove the dirt.
The square wood is afraid of water.
the company’s philosophy is to create good results with the cooperation concept of “service for survival, quality for development”.
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However, if it is hard to remove the dirt such as chewing gum and paint, we can’t rush to clean it.
Oh, how to choose good quality construction wood? Building wood is commonly called square wood.
(2) Hand touch: place your palm on the surface of the wood to feel its humidity.
Consult experts in time to solve the problem; In the outdoor square wood, pay more attention to waterproof measures.
is based on imported wood, trade, log yard, wood processing, such as hemlock Citi, camphor pine, radial pine, and other construction materials, construction wood, hemlock wood, pallet wood, bridge beam, sleeper, etc.
60 * 90mm, this kind of specification is rarely seen now.
(1) Hand weighing method: gently weigh several pieces of wood, the wood with small water content will be lighter, and the wood with large water content will be significantly heavier.
Precautions for the use of building timbers: the square timbers used indoors should be ventilated frequently, so that the smell of the timbers can be excluded from the room, and the indoor atmosphere can interact with the outdoor.
(3) Nailing method: use long nails to gently knock in the wood.
The drying effect of steam drying is that the wood is often dried thoroughly and the material is stable.
Ordinary cleaning agents cannot be removed, Don’t use tools or hard tools easily.
Secondly, when there is no special measuring instrument, some simple and easy methods can be used to detect the moisture content of wood.
However, naturally dried wood is prone to cracking.
It is commonly used in furniture manufacturing and civil engineering.
It is mainly used for hanging sheds or making some internal structures.
The specification of building timber is 30 * 50 mm, which is often referred to as 35 square.
