Types of Parquet

Our website contains comprehensive information about the tree, its products, the properties of wood, its use – in short, all of the parquet of different breeds, its installation and species. Tree species are divided into coniferous and deciduous. Conifers trees make up a large portion of our woods, they grow thick stands (stands). Each has a high straight trunk. These species most widely used in building and woodworking industry. Annual layers in Softwood clearly visible in all sections.

Later part of the annual layers are more or less broad, dark color; medullary rays, small (invisible). The wood of many conifers contains a resin that smells like turpentine. Resin moves on the front section are given bright points in the later part of the annual layers, the radial and tangentalnom cuts – the kind of dark lines (dashes). Conventional hardwood species trees depending on the particular location of vessels in the annual layers are divided into two types – koltsesosudisty and rasseyannososudisty, both widely used in the production of parquet. In koltsesosudistyh species (oak, ash, etc.) large vessels are circular rows in the early part of the annual layer, the rasseyannososudistyh species (birch, beech, etc.), small vessels evenly dispersed across the entire width of the annual layer. Therefore, the annual layers of wood koltsesosudistyh rocks on all the cuts are always different is good, and rasseyannososudistye – badly. Breed growing tree easy to identify the bark, leaves or needles, at a considerable distance – to form the crown. In determining rock beams at a distance watching his features such as shape, color tone of bark and wood.

The Surface

The first – setting the exhaust and air cleaner. The best of them are capable of removing up to 96 percent of contaminants and odors and able to purify the air in the kitchen for 6-8 minutes. The second – is the use of water-resistant and resistant to various chemical contamination of materials in the manufacture of kitchen sets. Such materials ensures removal of contamination from the surface without damaging the surface of the kitchen units. When choosing kitchen units should pay attention to the materials used in the manufacture of kitchen units. Naturally, in these names chipboard, fiberboard, laminates, etc. can easily be lost to the beginner. You should know that each one has its pluses and minuses.

But do not despair – go to a specialist, and you must help. Now on to clean the surfaces of kitchen sets. The chemical industry is constantly throwing on the market various types of detergents. When choosing to clean the surface kitchen units should focus on the material, of which the elements of the kitchen units. Depending on the material and should be chosen detergent. To clean the front surface of the laminated chipboard or MDF can be a film with a detergent such as Fairy.

Cleaning should be performed with a soft cloth. To remove the hard output or oil stains from laminate surfaces, use local cleaners containing ammonia. Clean the wood or veneered facades can be done simply with a damp cloth or by using special funds, with the surface to be wiped in the direction of wood pattern, thereby removing the dirt from the pores of the wood.

Valves

For a long time as a shut-off and control valves used valves and valves. In this case, very often it was the valves and valves made of cast iron and very high quality. Many professionals who work in the field of installation and operation of various systems of heating and water, are well acquainted with the problems encountered when used as a multipurpose valves traditional valves – the need for an annual audit for the packing and cleaning rings sealing discs from dirt, the complexity of the emergency line shutdown in emergency cases, a lack of integrity, a high percentage of failures due to a drop jaws or broken bolts. Besides all this, catches have large dimensions and relatively heavy weight. Today is a good alternative to conventional valves and valve – Ball cranes. Ball valves, non-ferrous metals with a threaded connection to the pipeline is already widely used in plumbing, heating, gas, heat and power to individual nodes, and industrial facilities. To objects of power (CHP, rts, boilers, chp, the heat network pipelines), and numerous industrial applications where high requirements for serviceability, in accordance with applicable regulatory requirements (snip, etc.) the use of fittings made of nonferrous metals (including ball valves) with Ring Joint connection to the pipeline is limited. Valves and fittings made of nonferrous metals, not recommended for use on pipelines with a diameter greater than 50 mm, operating at high temperatures and pressures, since the strength characteristics of the case and bolting significantly lower than that of the armature steel and cast iron with flanged connection to the pipeline and the weld.

Types Of Varnish

Linseed oil – it's processed vegetable oils. They are used to produce coatings on their own or mixed with color pigments and resins. For linseed oil also include solutions of alkyd resins and some other organic compounds. Natural drying oils are made from recycled vegetable oils and substances that speed up their drying – driers. The composition of semi-subsistence and artificial drying oils include, in addition, organic solvents, which regulate the viscosity of the varnish. The solvents used primarily petrol-solvent, turpentine. Processing of vegetable oils in the varnish is in their cooking, and the introduction of driers.

Vegetable oils are not suitable for cooking oil paints and varnishes. Drying them on too long, and produced films have insufficient water resistance and lower mechanical properties. When heated vegetable oils (with desiccant) is in the process of polymerization of the molecules of oil, formed high molecular weight compounds, which provide an oil film, high moisture resistance and improved mechanical properties. Semi-subsistence varnishes are made from vegetable oils, which are natural plant oils subjected to even more dramatic chemical changes as a result of the strong heat treatment or adding chemicals that cause transesterification of oil molecules. Artificial drying oils – is the third group of drying oils, which are derived from synthetic film-forming substances.

They are often called synthetic, which is not entirely true, since most of the raw materials for them to receive not through the synthesis of elements, and waste treatment chemical industry. Natural drying oils (flax and hemp). Contain no solvents. Their produce almost exclusively – from drying vegetable oils, mainly flax and hemp. Linseed varnish have a light yellow color and are suitable for making white and light colored oil paints. Color hemp drying oil is much darker.

Thailand Country Woods

Thailand is a country of forests, shrub-studded grasslands, marshes and wetlands dotted with lotuses and water lilies. Since the mid-20th century, the total area covered by forests has declined from more than half to less than one-third. Forest Clearing for agriculture (including plantations), excessive logging, and poor management are the main causes of this decline. The forests consist mainly of hardwoods such as teak and timber and resin production of trees in the family. As elsewhere in Southeast Asia, bamboo, palms, rattan, and many species of ferns are common. Where forests have been logged and replanted not, of medium height grass and rose bushes, which often restricts the use of land for agriculture. Lotuses and water lilies dot most ponds and marshes throughout the country. Thais have traditionally used water buffalo, oxen, horses and elephants for plowing and harrowing the fields, transporting goods and people, and move heavy objects.

In the 1980s, however, the draft animals were replaced by machines, and, except in remote areas, the animals used for transportation were replaced by motorcycles, trucks, cars and buses. The demand for work elephants are almost completely disappeared after the ban on logging in 1989, and domestic elephants were involved in the tourism industry. Rapid deforestation in Combined with the marked increase in demand for exotic animals were disastrous for wildlife. Rhinos and tapirs, as in many parts of the country, but it all vanished, like herds of wild elephants. A similar fate befell the gibbons and some species of monkeys and birds. Although serious efforts have been made to prevent the illegal sale of endangered species, they have met with only limited success. Like other legislation on protection, which has a long history in Thailand, the laws were difficult to implement and achieve.

Sciences Uranium

The same is the fact that before a note on a new radioactive substance in the composition of uraninite "* appeared in the Proceedings of the Academy of Sciences, Marie had sent the manuscript to his homeland, to Joseph Bogusskomu, head of the laboratory of the Museum of Industry and Agriculture, which began its first scientific experiments. The report was published in the Swialto, a monthly illustrated review, almost simultaneously with the publication in Paris. " * Mineral uranium, its composition UO2. Curies explored different uranium-bearing minerals. Why radium and polonium not? In fact, why radium and polonium are not brought the Curies worldwide fame? After the first element, open them, there was an element number 84. After a year they had no doubt that pitchblende contains two new element.

But these elements are allowed to know about yourself only radioactivity, and to convince everyone, and especially the chemists, that the opening does occur, it was necessary to highlight these activities, learn new elements at least in the form of individual compounds. All radioactive elements and isotopes are known, are now united in the family: the decay, the nucleus of the radioactive atom into a nucleus of another child element. All elements of the radioactive families are together in a certain equilibrium. Measured in uranium ores equilibrium ratio of uranium to polonium is 1.9 1010, and in equilibrium with a gram of radium, polonium found 0,2 mg. This means that uranium minerals radium almost 20 billion times smaller than that of uranium, and polonium in 5 thousand times smaller.