Wood is widely used in household work, the use of this material in the home occurs much more frequently than any other. Production tree is divided into two main types: coniferous and deciduous.
In production is increasingly used needles as it is well glued, planed and not easy to crack when exposed to heat or sunlight.
From the trunk of the tree produced a variety of lumber, such as: beams, planks, bars, plates, strips, lagging and quarters.
Classification of timber
Uneven Bars: The most powerful type of timber, has a diameter of 100 millimeters and above. They are processed and opilivat with two, three or four sides.
Bars: thickness from 50 to 100 millimeters, width also depends on the thickness and may not be the size of a double thickness. Bars are full-cut or have the wane (intact lateral surface of the bar).
Board: have a thickness of up to 100 millimeters, the width to 300 and the maximum length of up to 7 meters. Boards can be both edged and not edged or edging on one side.
Lagging: materials (waste) that remain after sawing. Are cylindrical in shape, cut in half diagonally.
Plate: formed by sawing vertically.
Quarters: formation of sawing the plate into two equal parts.
In addition to lumber, wood made, also, Wood-based manufacturing is wood.
Types of wood:
DWT: produce by gluing veneers. Mostly made of pine, larch, spruce and birch. It is used for insulation in the manufacture of furniture. Also, the plywood is used as ornamental material.
Particleboard (wood - particle board): material that is manufactured by pressing wood chips in the plates. For a bunch of mostly use synthetic resin. Classified according to density.
Length varies from DSP 2440 to 5500 mm, width from 1220 to 1440 mm, thickness from 10 to 25 mm. Plus DSP is easy to work with this material, of the downsides - low moisture.
More in-depth knowledge of the species of lumber, you can benefit from the specialized literature.
No comments:
Post a Comment