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Protect the surface of the concrete floor
To protect the concrete floor, which is operated in the normal mode, or is subject to wear in areas with high traffic, there are several ways to protect the surface.
   Comparable ways: their cost, appearance and ability to perform the task to protect.
   In this article, we consider three ways to finish and protect the floor. Each of them has its advantages and disadvantages.
   Thin fil...

Finishing compositions based on water glass. Part 3
When used as part of exhaustion moderator comes coagulation and solidification of liquid glass. However, due to the presence in the composition of Portland cement with a finishing time is an increase strength of the coating due to hydration of cement minerals. Thus from colloids formed during the coagulation liquid glass are actively assigned to the water for hydration of cement, a porous media formed tumors filled Portland cement, which leads to...

Finishing compositions based on water glass. Part 2
Studies in Berlin Institute Federal institute for Materials Research and Testing, show that the average density of 1730 kg/m3 brick large proportion of pores having a size in excess of 1 micron is more than 90% [3] and they are responsible for the increased migration of fluids through brickwork.
   Most fully meet these requirements structure obtained by coagulation and water-soluble potassium silicate forming silica with a high sp...

Modernization and repair of self-propelled machines. (3)
Hardening electrolysis BORATING hinge pins and bushings mates working equipment hydraulic excavators EO-4121 (EA-4321) gives an increase in wear resistance 4-6 times compared to the bulk quenching details.
   Taking into account the high wear resistance of brazed blades, hardened sintered alloys (see Table 1), are recommended for carbide knives dumps graders DZ-122 and RS-98, combined machine E-405 based on KAMAZ, for front dumps a t...

Specialized exhibition Architecture. Construction (END)
Mari-lime brick and gas silicate blocks
   JSC "MZSK" produces silicate brick and a half, color (white, yellow, black, red, blue, green, brown).
   For the production of silica brick used quartz sand from quarries near the plant. Limestone enters the factory with Dobryatinskogo deposit Vladimir region. Silicate brick (Table 1) is used for masonry exterior and interior walls of buildings and structures, as well as ...

Geophysical processes primers and security. Part 5
In the center of Moscow can distinguish vertical structure comprising a crashing into the Earth`s crust magma elongated cylinder (Fig. 2) [5]. In the center section marked lack of extensive vertical zone converted waves ("blind spot"), going from the depths of 70-80 km to 7.5 km. Such "blind spots" are characteristic of the earth`s crust with the introduction of monolithic dense mantle rocks such as gabbro, diabase, etc. In such a zone Tashkent e...

Finishing compositions based on water glass. Part 1
The quality of the decoration of buildings for new construction and reconstruction depend not only on their aesthetic, but also the operational parameters, as good-quality finish - a guarantee of durable service basic designs, long maintenance-free operation, the costs for maintenance and care. Traditional binders used for the production of finishing compositions, liquid glass is widely used, but it has some drawback: coatings based on it gaining...

On possible amendments to the equation Griffiths
Griffith presented a picture of destruction allowed to formulate the problem of determining conditions of the beginning of crack propagation and find its general solution.
   As seen from the above schemes, in the process of crack propagation material directly adjacent to it "coasts" unloaded relaxes. This means that the stress and strain it decreases, and the elastic energy stored earlier in this area of ​​the body is re...

Construction skyscrapers - the requirements of modernity. Part 4
The program is a high-rise building in Moscow
   The project is now a high-rise building in Moscow is implemented in two main areas: the construction of business center "Moscow City" and implementation of the program of the Government of Moscow "New Ring of Russia."
   1. Moscow international business center "Moscow - City"
   The project includes the construction of buildings on the territory of abou...

Degree project - beginning of the road. (3)
Given the great diversity of subject matter and content of diplomas in various specialties, the jury is faced with great difficulties in determining the winners - "Who better violinist or a dancer?". Nevertheless, often based on emotional perception and can estimate the relevance and novelty, and the author`s contribution to the thesis project or job. Absolute winners in recent years have been graduates of Rostov CSO GASU St. Petersburg, Nizhny N...


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 Electroheaters  DIESEL  (END)

SET electroheaters DIESEL
Drivers aware of the difficulties encountered when running the diesel engine at low temperatures , as there is a loss of paraffin crystals contained in the fuel , and the clogging of the filter element and fuel standpipe in the tank. This leads to complications when starting , loss of power , excessive fuel consumption and the engine stops . The problem solved by the installation kit diesel fuel heaters , the heating elements are formed on the PTC thermistor ( with special ceramic electrical characteristics ) that enables automatic fuel temperature control , high reliability and prevents overheating of the fuel .
The kit consists of a heater in the fuel fine filter 740-1117010 car " KAMAZ" vehicles or " ZIL ", " LiAZ " and heated fuel standpipe in the tank. Enabling heaters performed dashboard in the cab . Installation of heating system takes approximately 30 minutes. Supplied with heater with fine filter , bracket , contactor, tumbler with warning light and wires for electrical connections of the car.
Filter Engine "KamAZ" , containing two buildings with the filter elements , complemented by two modules with six heating elements in each case , the filter engine " JAMZ -238 " - one module with nine heating elements in the filter engine " D-245 " (for car " ZIL -5301 Bull" ) heating elements are mounted in a specially designed aluminum cover the module is designed as a cylindrical body made ​​of aluminum alloy with recesses in which the heating element installed disc . Fuel postpuaet through the annular gap between the lid and the body continue to flow around the surface of the heating elements through the annular gap is supplied to the filter elements .
Posistor heated fuel intake and installed instead of the regular functions heating fuel in the inlet before starting and when driving on the highway, when possible strong cooling of the fuel in the tank. Supplied with heater with fine filter fuel heater fuel standpipe , bracket , connectors , toggle switches with indicator lights , wires with sockets and plugs for connection to an electrical car. Heater control is carried out from the driver's cab .
Currently available systems of electric heating fuel for cars " KamAZ " and " ZIL -5301 Bull" and is preparing to release a universal heater, installed in the gap between the fuel tank and a fine filter .
Technical specifications for diesel fuel heaters agreed in Auto Electronics Research Institute .