Posts Tagged ‘Equipment’

Market Survey Equipment

Monday, October 26th, 2015

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Electronic Total Station Leica, Sokkia, Trimble and Nikon – the market leaders tacheometric In today's market survey equipment, including electronic total stations of all classes of accuracy, there is a recognized flagship company of which and will be discussed in this article. To begin with, the total station is a device that is used for a variety of surveying and civil engineering works. With the help of an electronic instrument is measured by the excess of angles, distances to points in the those are not available, by removal project in nature, created by digital terrain models and topography survey area of interest. Tom Smith understood the implications. Modern total stations are capable of performing various tasks with little or no participation man, you just install a robotic total station to a tripod, set up a connection to a computer via any of the existing data ports and manage the work of the product, but rather only to make the necessary amendments to its automatic operation. In robot mode, or automatic total station is almost no mistakes, does not require much attention, but quietly executes that plan. The only disadvantage of this instrument is – it price, while robotic total stations are expensive and inaccessible for the vast majority of construction crews and companies, but not so far that day, when a Field Station will be in a cage all the brigades and contracts. Total Stations Leica / Leica total station main difference between these is the European build quality, excellent reliability and availability of total station Leica. . .

Roofs

Sunday, September 21st, 2014

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Shape of the roof of an apartment house is dictated by architectural considerations and may take many forms. In individual housing construction, used mainly pitched roofs, which differ in slope relative to the surface of the earth. Shed roof. Shed roof is most often used in non-residential buildings – barns, additions, porches, terraces, etc. Residential houses pent roof can be used in areas where drainage and dumping of snow is not allowed on the outer part of the street.

Gable roof gable roof is the most common classical design and consists of two inclined planes, forming the upper part skate. On both sides gable roof gable is limited, which is a continuation of the wall at home. Mansard roof is a variation of a gable roof loft, wherein the configuration of a broken skate. Roof roof is the result of the desire to turn the attic space into a full residential floor. French roof is very popular in modern construction as well as ensures effective use of residential attic floor area. Hipped roof and hipped hipped roof hipped and structurally more complex and relate to the hip roof. They may have a variety: poluvalmovye roof mnogoschiptsovye roof, etc.

Intersecting at the top, rays form diagonal lines – edges and corners of the bottom of the hollow, called razzhelobkami (valley). Hipped roof hipped roof emphasizes the protective function and gives the building a representative form. Characteristic features hipped roof accented the presence of skylights. Hip roof hip roof determines the index is symmetric.

Case Conditioner

Wednesday, April 30th, 2014

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– Will used to with such a woe-setters copper tube for refrigerant, and it has no plates. If the stub does not, then fall into the damp air. But humidity is not valid for air-conditioner: connected to an internal system-wide forms acid, eating away the inside mechanism of the air conditioner! And instead of properly serve for many years, this conditioner is already three years later, of course, goes to landfills. Installers have told me that sometimes I come across a particularly stubborn customers, they say, "I cry, do as I say!". What to do? I recently had a case. Client ordered to install the outdoor unit is not from the street, but inside the apartment, and in the nursery.

Motivated this strange statement that his children, he says, still two months to live in the country. All persuasions and arguments of installers that the outdoor unit should not be placed in a closed, but even more so – in the living room, he ignored it. It is clear that in two months buyer called stubborn installers to reinstall all over again. Or take the case. The client wished to indoor unit blowing directly onto the bed, the temperature would be 18 C. He tried to prove that it will be cold, but addition, the directional flow of cold air can cause colds. "No! Do not catch cold! Set! "Do nothing, put up. The next day they came to install the air conditioner is already in another room, they saw, and a temperature on the fact Split last night, is set to 22 C.

Construction Welding

Saturday, March 3rd, 2012

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Made of steel pipes, galvanized as well as not, of cast iron, plastic and ceramics. Separately, you can select stainless steel pipes, which are much longer than other steel pipes, looks pretty nice and do not require additional processing (eg, painting) in the operation. There is also asbestos and metal pipes. How well the plumbing pipes, is largely dependent on the material from which they made, and the quality of the workmanship. Last continues to be desired.

0B evidenced by the annual summer and spring and autumn and sometimes winter repairs. You can not even leave the house, and just look out the window. Vengeance roars excavator, biting into frozen ground, heard the cries superintendent cheerful, tired men half-heartedly do the usual chores. It is – sad and, unfortunately, the inherent lyricism of our public life. But do not let the bad news, let's talk about the kinds of pipes, their features and advantages. Steel pipes So pipe.

The most popular and familiar among them are steel pipes, galvanized, and I must say the full law. Steel has been and remains almost not strong industrial material used in large-scale modern industry and for domestic purposes. Furthermore, we must tell you that further increases strength steel tube method of cooking. Two methods: welded and seamless. As the name suggests, the first method involves the use of welding and the inevitable seams at the joints in the field of welding. Exactly is most likely to cause defects in the case of low-quality connection parts of pipes into a single whole.

High Alloy Steels

Saturday, February 4th, 2012

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Welding of medium-and high-alloy steels is difficult for the following reasons: during the welding process is a partial burning of dopants and carbon due to the low thermal conductivity may overheat welded metal, reinforced by the emergence of a tendency to hardening of structures, greater than that of low-carbon, linear expansion coefficient can cause significant stress and strain associated with heat the influence of the arc. The more dopants in carbon steel, the stronger the effect of these properties. To eliminate their influence on the quality of welded joints is recommended the following process steps:-meticulously prepare the product for welding, welding carried out at high speeds with little heat input to avoid overheating the metal – to prevent the reduction of internal stresses and the formation of hardening structures use heat treatment;-use of weld metal alloying electrode wire through the coating and to fill the burnable impurities in the welding process. Welding is done with direct current feedback polarity. At the same welding current is selected for 25 … 40 A to 1 m diameter electrode. The arc length may be short.

In industry and construction extensively used medium-and high-alloy steels: manganese, chromium, chromium-nickel, molybdenum and chromium steels, etc. belong to the group of stainless acid-proof and corrosion-resistant steel. The chromium content they share on srednelegirovannye (up to 14% Cr) and heavily doped (14 … 30% Cr). During welding of chromium steels having the following difficulties. Chromium at 600 … 900 C readily reacts with carbon to form carbides, which are situated in the thickness of the metal, speed intergranular corrosion, minimizing the mechanical properties of steel.