Lumber is produced by sawing wood into separate parts - plates, quarters, bars and bars, boards, horn. Types of lumber are distinguished by a large variety.
Classification of sawn timber in appearance and processing method.
The thickness of the boards made in production conditions may be no more than 100 mm, the width value is greater than the thickness value multiplied by two. Bruzhev has no more than 100 mm thick, the width should be less than doubled thickness.
How are timber separated depending on the processing
According to the method chosen for the processing of raw materials, lumber is divided into unedged and edged. For the latter, the processing of four sides is characterized, on the plas and edges. In this case, only defined in accordance with the product variety should be allowed. Ozol is called part of the log surface, which is preserved on the parts after mechanical trimming. It turns out a piece of blackboard unprocessed around the edges, which can be used in architectural structures or with a carpent finish of buildings.
The uncircumcised sawn timber has edges, sculpted part or not spinning at all. One-sided articles have one edge and supraged plastic, while it is not allowed on a supylene lump, more than values than permissible parameters for a particular product. This species is used in construction somewhat less often. It can be used to cover a variety of parts of the structure, the performance of the catering, and other options are also possible.
Types of sawn timber and cutting logs.
Depending on the processing method, materials may be referred to refined or milling, that is, planed. The latter are a material that has at least one of the Ostrhan cavities. In order to produce a planed timber, the forest is taken only with a certain diameter so that the bruck blanks are formed in compliance with the desired size. Billets must be dried - this is done using steam chambers or in vivo. Products are obtained by treating raw materials on machines.
Article on the topic: how to make a lamp from the LED tape do it yourself
Classification of sawn timber, form
When processing wood using modern technologies, different types of products are performed. The sorting includes bars and sleepers, boards and rails, quarters, hill, plates and other products. Types of lumber may vary depending on the methods of working with raw materials. You can read more familiar with them.Types of sawn timber
The timing, depending on the number of partitions, the side of the parties will be called a two-hand, twisted, quantum. Thickness and width of products is usually more than 100 mm. The main sphere of their use is the construction of supporting structures, cottages or cottages, since these products can perfectly withstand significant loads.
The bar is similar to a bar, but has other sizes. It is performed with a thickness of up to 100 mm, the width is less than double thickness. Used in the furniture and joinery industry, for finishing buildings, for example, do the door boxes, crossbars.
Table of drying coefficients and mechanical lumber strength.
Boards are performed from logs or sufficient BRUSEV. Boards are uncircumcised or cropped. Thickness is not more than 100 mm, the width is greater than the double thickness. Application - wall decoration, furniture arrangement, furniture production.
The sleeper represents a product with a small length, but wide and thick. This is some kind of a variety of timber, in which the size of the cross section is characterized by magnitude. The most frequent application is to perform railway cloths.
Gorny is a piece of log, sipped sipped. In the process of sawing logs on a variety of boards, waste is obtained, which are called hill. It is convenient to make temporary buildings like Sarai, they are suitable for the construction of the crate under the roof.
Quaterna (Obapol) are also obtained from the side parts of the logs. One of the surfaces of the propylene product, there is no other. It is convenient to use for the manufacture of small joinery.
Article on the topic: What you need to do to create a kitchen drawing
The plate is a half of the log, which is obtained when it is cut in the center. The plates have only one straight side. Length depends on the log used as a raw material. It is used mainly for the production of the above products - sleepers, bars, sometimes - for making a massive board.
How to classifies timber in wood
Sawn timber will depend on the tree breeds - they can relate to a deciduous or coniferous array.
Coniferous arrays include larch, spruce, pine, cedar, fir. Deciduous arrays - oak, birch, beech, aspen, poplar, maple. For the construction of buildings, coniferous species of trees are often chosen, since they are little exposed to humidity, more comfortable in treatment, have a good hardness and rather durable. They can be used to create bearing structures. But it should be borne in mind that coniferous breeds in their composition have a lot of resolved substances, which means that any types of sawn timber created from them are faster and easier to fire.
Wood is extremely popular. It also includes the smallest number of resins, so the predisposition to fire is reduced. Among the hardwood is a significant distribution received oak - it is very durable and durable. Lumber can be distributed into four varieties. Thus, the selected varieties are used in the manufacture of parts in shipbuilding, with a technician of automotive sides, in other significant spheres.