Wood is a part of a tree that is hidden under the bark. The composition of wood includes dead elements with thick cell membranes (they make up 85-90% of all elements), the rest are living, with a thin shell and cell sap. Vascular-fibrous bundles called cambium are constantly formed in the tree. Thanks to his activity, every year the amount of wood in the tree is constantly growing, and the trunk, accordingly, is thickening. Of course, the process of formation and growth of wood is much more complicated than described, but you already have general ideas about it.
A feature of the frequent use of wood in various industries, including for the manufacture of crafts, due to the large number of properties of this material:
- The strength and hardness of wood depends on the type of wood. The ability to resist loads and the introduction of solid objects is determined by the Yank test.
- The wear resistance of wood allows it to be used, for example, in the construction of houses. The use of various impregnations and protective coatings enhances this property. Moreover, the wear of dry wood is much less than wet.
- The moisture content of wood is defined as basic and relative. The usual method for determining the amount of moisture in wood is the method in which the starting material is weighed and then dried at a temperature of 100-105 C, when all the water from the material evaporates. The greater the humidity of the tree, the more difficult it is to use it for the manufacture of crafts - it does not adhere well and crack when dried.
Porosity, shrinkage, hygroscopicity, warping - this is not a complete list of all the properties that wood has.
You can make sure that the many properties of wood are well used for making crafts. do it yourselfreading articles "Crafts from wood" or "Wooden case for a flash drive" on our website.
Wood is widely used as a building, decoration and ornamental material. Production of furniture and building structures are simply unthinkable without quality wood.This material was even used to make Oscar-winning statuettes in 1938 - this was done in order to save metal.
There is a big difference in the properties of different types of wood. For example, Venice is all built, namely, from Russian larch, which withstands the effects of water, unlike its foreign "counterparts"