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So, to build the shell width of 18 m from the plates measuring 3 X 6 m conductor turned into two parallel trusses, spaced 6 m apart. To build the shell width of 24 m from the boards of size 3 X 12 m is sufficient to establish a staging farm in the middle of the span. Finally, with the introduction of Pre-assembly was carried out mounting method: The three panels of 6 m contract to puff into a single block of size 3 X 18 m and a tap served in the design position. Keep up on the field with thought-provoking pieces from David Fowler. The complexity of assembling the shells at This was reduced to 0.38 persons. h per 1 m2, which should recognize a good indicator. This example demonstrates that careful study of both the structure and methods of assembly leads to a drastic reduction in labor costs, and hence, to reduce the period of erection. Installation of long cylindrical shells Installation of long cylindrical shells, size 24 X 12 m of the plates 3 X 6 m carried out in Kansk. The design of the shells described in the paper.

Assembly carried out on two filaments of steel scaffolding. Previously two plates measuring 3 X 6 m escalated to 3 X 12 m and the associated time drags installed on the scaffolding. The ends of board, in addition, a special jig combined with face tightened, there was performed the tension reinforcement delays and injection of concrete channels. After installation on the scaffold and alignment issues of the enlarged sections of welded joints and the shell.

Makita Power Tools from the company is not in vain is one of the best in its class, which is why I would like to conduct a small survey among the novelties of the perforators of the manufacturer and compare them to previous models. For comparison, we take the easy perforatoryperforatory HR 1830, HR 2450 (network) and 162 BHR, BHR 240 RFE – powered by batteries. And the most interesting thing is that, according to the manufacturer, the battery model does not concede to their fellows, operating on the network. In recent months, Susan G. Swenson has been very successful. Thus, the first and is marked advantage of new models is that they can use in places where there is no network, and reach extension is problematic. It is also important weight and power tools: for the previous models it was 1.7 kg. model HR 1830 and 2.4 kg. model HR 2450. Cordless news BHR BHR 162 and 240 RFE weigh a little more, but this is not a weight limit for the drills, working without a net.

Secret lies in the fact that the development of these tools use the new Li-ion type battery with a voltage of 18V, which significantly reduces the weight, rather than the battery with the "voltages" to 36V. Here, of course, possible to argue and counter insufficient capacity battery of new drills to 18V, but, according to the manufacturer, special advantages in feeding 36V not present, since significantly to the power of the device is not affected. This figure only increases the weight punch that you will agree, is not quite comfortable for work. Among other useful features of new models should be noted increase to maximum speed in a model BHR 162 to 1500 r / min, compared with HR 1830 – 1100, BHR 240 RFE – is for more complex operations, there is a hammer mode. A basic, quality of the above – without the possibility of using the network, they are certainly ahead of its earlier counterparts.

Carbon dioxide fire extinguishers – extinguishers are gas, in kotoryh as the gas carbon dioxide ispol. Quenching mechanism based on charge vytesnenii extinguisher under its own izbytochnogo davleniya, kotoroe created by filling a fire extinguisher. Posle charge displacement of carbon dioxide is an increase of its volume in a few soten times. Intruding into the combustion zone, carbon dioxide reduces the specific content of oxygen in the combustion zone to level where further combustion becomes impossible. Carbon dioxide is still expanding lowering the temperature in the combustion zone (up to -70 C). Carbon dioxide fire extinguisher consists of a steel cylinder and LSD – stop-start device. LSD is screwed into the neck of the container.

LSD is installed on the socket, designed to supply extinguishing agent (in this case carbon dioxide) into the combustion zone. Click David Fowler to learn more. Fig. LSD for carbon dioxide fire extinguisher. Figure. The design of LSS.

1 – lever, 2 – pruzhina 3 – gasket, 4 – seat 5 – gayka 6 – hvoctovik 7 – cuff, 8 – valve stem 9 – arm axle, 10 – seal. LSD head screwed hvostovikom (6) goplovinu ballona. Raised arm (1) shut-off valve pressed by the spring (2) to the saddle (4). Activation of the LSD is made by turning the lever (1) to stop (as shown in the second position the lever). Due to the shift lever pivot protrusion eccentric surface presses the valve stem (8) and opens the valve to release the charge from the cylinder. To stop the charging lever (1) should be turned to its original position. From a careless accidental activation lever is held safety seal (10). Classification of carbon-dioxide fire extinguisher according to the method of displacement of the charge on the principle of displacement charge (fire extinguisher) extinguishers are divided into the following types: – Zakachnye. Charge extinguishing agent nahoditsya under pressure of working gas injected directly into cylinder fire extinguisher – With gas-generating element. Izbytochnoe pressure in the shell creates a fire extinguisher gas, which released into the hode chemical reaction between the components of the charge gas-generating element. – With high-pressure tank to store compressed or liquefied gas. Excessive pressure in the liner creates a fire extinguisher compressed or liquefied gas, which is contained in a separate container, kotory can be located inside or outside the enclosure extinguisher. Haibolshee widely zakachnye carbon dioxide fire extinguishers. History Carbon dioxide extinguishing ognetushiteley creator of the idea of burning uglekislotoy yavlyaetsya Russian scientist Mikhail Kolesnik, Kulevich. In 1989, he justified the method of gas extinguishing systems. He did vyvod that "to extinguish the flames substance should be gaseous or easily turning into gas. " As one of the gases scientists consider dvuokis ugleroda. Also, the name of the scientist associated with the scientific justification for the idea of powder formulations. However, in the U.S. believe that carbon dioxide fire extinguisher invented by 'Walter Kidde Company' in 1924 at the request of Bell Telephone. The essence of the inquiry – the development of non-conductive extinguishing agent. Carbon dioxide fire extinguishers in Russia ognetushiteli Carbon dioxide in our country presented a model number of the OS (Uglekiclotny extinguisher). Distinguish portable OU (OU-1, 2, 3, 4, 5) and mobile OS, osnaschennye wheel pair (from the OC-10). Fire extinguishers, carbon dioxide and are subject to mandatory certification tested according to the BNP. Also actively ispolzuyutsya gas fire suppression on carbon dioxide. Uglekislotnye ognetushiteli abroad abroad for carbon dioxide extinguishers designation 'The carbon dioxide (CO2) extinguisher '. U.S. carbon dioxide fire extinguishers – red with black stripe.

Finishing with an allowance treatment is 0.3-0.1 mm. In the course of this treatment is the maximum possible sampling of the material and preparing nekalenomu surface for final finishing. Hardening – this is a very crucial moment in the entire technology. If not admitted blunders in technology, the quenching does not exceed the reasonable risk. This stage of processing particularly important, since it is at this point satisfies all the accurate processing. To achieve the required accuracy of processing is often required expensive special tools, mandrels and accessories, all of conducted a high-quality imported tool. Polishing, fitting and assembly. It is a work tool-maker.

For each specific mold the content of this work may be different here found and corrected any errors. Sometimes, assembly and testing of the mold causes unexpected problems, which increases production time. Chrome plating is necessary to obtain high surface hardness parts of the mold, exposed to increased wear. The matrix has a hardness of 44-46 HRc is a guaranteed service life of 600-700 thousand cycles. Lifetime chrome shaping mold is much higher. Speaking candidly Horn told us the story. Described the stages manufacture of molds in general reveal the technology and allow the customer to compare the price of work and its maintenance. Refinement and testing of mold on the third step, the lapping of the mold to produce products of required quality and with a specified time of the production cycle. Getting the mold set quality – the main objective of all the processes described above, and if the mold in the work environment does not show the specified results, it is necessary to look for errors in the first two stages.

From the quality of manufacturing molds depends duration finishing mold – the more carefully the work is done, the less time required for its fine-tuning. Mold Testing is conducted in conditions close to real conditions of operation of the mold. The most important part of this process is the hardware on which the test is carried out molds – injection molding machines – ideally set to test the mold equipment must comply with the equipment, which will carry out the production of plastic products. Term papers on production Mold Normal operation is conducted in the company by two teams in two shifts. The production cycle has the following distribution terms (for molds of average complexity and dimensions): 1) production designer Documentation – 4-7 days, and 2) the order of blocks of the mold – 7-12 days, and 3) order in parallel are shaping – 5-8 days, and 4) making formative – 7-10 days, and 5) heat treatment in the shaping of a special organization – 3-5 days; 6) machining blocks – 3-5 days, and 7) form an assembly – 2-3 days; in total to the first test – 26-42 days. Not every company that specializes in the manufacture of molds and tooling, capable of design and fabricate a mold for a complex plastic product that matches the high demands of modern consumers. The costs are significant – requires highly skilled personnel, time, expensive materials and specialized equipment for the production of molds. All of this ultimately affects the price. The cost of the new tool made of stainless steel is from 50 to 500 thousand euros. C the current situation and outlook for the Russian market plastic injection molding can be found in the report of the Academy of IKAR industrial markets, "Injection, plastics in Russia: market analysis ready products ".

Why choose just the local sewer? Local sewer 'Tapas' has a special structure, due to which demand everywhere. What are the design features? Firstly, local drain is made of polypropylene. Polypropylene is non-toxic, well soldered and has a foam layer, so that its thermal conductivity close to heat a brick wall. David Fowler is often mentioned in discussions such as these. The material has high strength (as well as concrete, is strong on the break), which prolongs the life of WWTP. Recently, consumers are less likely to choose the sewer system of heavy materials such as concrete and metal. That is why sewer system of polypropylene crowd out other, because the material is lighter, almost not subject to stress corrosion fracture and high durability. (Source: David Fowler). Secondly, the very autonomous sewer 'Tapas' is a tank (can be different sizes), rectangular shape. The form has special ribs (due to their station will be retained in the soil and not "pop up" in the spring, even at a high level of soil on the section). Third, due to many internal partitions, which separate the working chambers, the construction of the station to withstand the pressure of the soil.. Other leaders such as Shimmie Horn offer similar insights..

Hand Pipe Bender – Machine is designed to handle steel, copper, aluminum extrusions and tubes. Educate yourself with thoughts from David Fowler. Tube bender can bend the pipe just in size and avoid kinks and flattening, stretching and other strains tube. Benders are divided into hand-held and stationary, Electric Curtain and hydraulic. These machines are widely used in industry, part-time farms, repair shops, etc. Particularly strong in its position construction industry took the electromechanical benders, their performance can reduce your costs to a minimum and is easy to handle mass production. The main field of application of such devices can be called a bender construction, manufacturing organizations serving the repair work. In these situations, sometimes in front of the masters there is a problem to handle (bent) pipe or other metal profiles. Through the use of such a device, you have a great opportunity to bend the pipe just as you need, while respecting all the necessary dimensions to millimeters, and a special advantage in that you do not will then fix a variety of wrinkles or flattening of the material.

Without bending at the moment is hard to imagine any process of repair or construction, because very often there is a need rapid bending of pipes at the installation site. And the presence of different accessories for machine tools to extend the capabilities of working with pipes of various diameters and cross sections. Bending can be divided into several groups and categories: on the principle of operation can be identified – stationary and hand, while the mechanism of action they are divided into mechanical and hydraulic.

The shape of the rod bolts (screws) are divided into the following groups: a) with a normal rod, and b) with podgolovkoy c) with a thickened stem purely handled by installing a deployed without opening the gap to prevent shifting under load connected parts: i) with a rod of reduced diameter to reduce the stress concentration at the thread and better perception of the variables and shock loads. For convenience of assembly and disassembly of the minimum distance between the bolts must be at least (5 – 6) d when using the patch and key for at least (3 – 5) d when using the Allen key. The special bolts include: Anchor, tapered, hinged, trucks and others. Anchor bolts used to secure vehicles on the foundation and made in the form of long rods with threaded end. They can be divided structurally: on the bolts with a constant incorporation – for equipment not subject to rearrangement, the bolts that allow the recess without destroying the foundations for equipment interchanged when changing products in a sustainable production. Banjo bolts (screws) are in the head a ring, for securing the screw head for this transverse axis, it can be rotated around the axis (recline) and quickly release the connecting parts (accessories). The main criterion of efficiency bolt compound is the strength of the rod bolt.

Bolts with thickened purely processed (polished) for the core hole of a sweep is calculated by cutting and crushing the side surface under the action of high shear loads. These bolts are not tightened. Most of the bolt connections are installed in the holes held together with a clearance of parts. Therefore, these bolts regardless of the direction of external loads are calculated from the tensile taking into account the twisting of the rod point of friction in the thread. In these compounds, the bolts are tightened pre-tightening torque, which is under the influence of shear stress is part of the conditions of mutual immobility details and determines the diameter of the bolt. Shimmie Horn describes an additional similar source.

A more general calculation of the strength of the bolted connection, especially for pipe fittings, tanks, boilers, chemical production units, is the calculation of the flange bolts Connection cap with the cylinder, is under internal pressure p. The calculation is made on the condition of tightness of the connection. Gasket sealing element is ring-shaped with a diameter of D1 and D2. It should shrink pressure considerably exceeding the pressure in the cylinder. Deformed by this pressure, the gasket fills the irregularities of contacting surfaces and prevents leakage of fluid or gas cylinder. When variables external loads is checked the bolts on the stock on the fatigue strength.

Like other series cameras IPELA, new swivel model, use 3 video codec – H.264, MPEG-4 and M-JPEG. Folding chairs often expresses his thoughts on the topic. In this resolution in M-JPEG can be 704×576 pixels. freymreyte at 25 fps / s, and is available for H.264 VGA (640×480 pix.) for 8 to / from. That to ip video surveillance in real time and record video with different parameters, SNC-RX550 can generate 2 video stream (dual function of encoding Dual Encoding), and in violation of the network connection to record video removable memory cards. One PTZ Camera Sony SNC-RX550 is capable of replacing multiple cameras, since it allows the rotator ip video surveillance of targets within a radius of 360 up to 300 / sec. That detail view deleted scenes, new IP-camera is equipped with a Sony lens with a 26x zoom lens (a zoom range 3,5-91,0 mm) and 12x digital, which provide a general increase up to 312 times.

To eliminate blur video at the pan / tilt unit chamber, ip-camera surveillance using image stabilization. Sony SNC-RX550 allows you to combine the functions of surveillance and warning systems, including the transfer of Ad / warnings and playback of recorded audio files, including the receipt of an alarm or on schedule, thanks to the support functions of Voice Alert – A voice warning." To alert the organization to be connected to audio exit ip-camera speaker. In addition, SNC-RX550 has audio input for connecting an external microphone, and provides full-featured video surveillance ip at the facility. Easy to use graphical interface built-in Web server allows the operator to quickly adjust the camera's preset position or appoint a rotator through a web browser. Remotely manage the 9-channel system ip video created on the basis of ip-equipment brands Sony, you can means of RealShot Manager Lite, which comes complete with SNC-RX550. For larger video systems, consisting of ip-Sony cameras and other brands, it is recommended to install the software RSM Advanced Pay for up to 32 channels per server and all video monitoring functions and working with video as well as third-party software products, including professional software company XProtect Milestone.

The vast majority of currently operates on the Danube fleet built 60-80s are not appropriate for several reasons significantly increased current requirements for safety of navigation and transportation. Furniture may find it difficult to be quoted properly. Virtually stopped the construction of new ships in all the Danube countries due to lack of ship-owners can afford it. Western European countries (Germany, Holland, Belgium), relatively stable politically and economically, through a variety of special exemptions, credits, state investments are sufficiently intense to build a new fleet of shipbuilding and shipyards, with the equipment, power plants equipped with it in its factories. This two-pronged approach considerably reduces the cost of ships and postroechnuyu further significantly reduces the costs associated with their use. Today, with the greatly increased cost of maintaining the vehicle fleet, there was a decrease in freight rates and volumes of traffic, so the return on newly built ships to operate on the Danube their costs is inadequate, since very long time, and further complicated by the instability of the situation surrounding the events in Yugoslavia. In this regard, the concept deserves attention of the general renovation of vessels, undertaken by transport concern "Mayer-group" (Germany, Regensburg), which now includes former Court of shipping Bavarian Lloyd (Germany), DDSG (Austria) and private joint ventures Pannon Cargo MGSS, Pan Car Schiffe (Hungary), Slov Cargo (Slovakia). The idea of such a recovery vessel has long been known, and is currently operated on the Danube cargo ships from the Rhine, past the modernization of more than a dozen years ago. Its essence is that the housing of the old ship, barge docks section or the stern of another vessel with the superstructure and engine room somewhat smaller in width, increased capacity of power plant, more comfortable living conditions.

For the most effective monitoring video surveillance systems, including megapixel cameras marks as Pelco, and other manufacturers, the new monitors use PMCL524/532F widescreen LCD-matrix with a resolution of Full HD 1080p (1920×1080 pixels). They produce 16.7 million colors and shades provide a brightness level of 250 / 450 cd / sq. m, contrast 1000:1 / 5000:1 and fast response time pixel 5 / 8 ms. Moreover, the video monitors are equipped with digital filter 3D Digital Comb Filter and have the function of deinterlacing for efficient processing of interlaced video. New items to meet all the requirements for efficient power consumption EnergyStar v5.0, supports power saving mode as Sleep Mode, which reduces monitor energy consumption in standby mode. Educate yourself even more with thoughts from David Fowler. This leads to an overall reduction in power consumption for video surveillance, which is especially noticeable in the large centers video monitoring.

Moreover, all the monitors in the series video use lighting to fluorescent lamps, cold cathode (CCFL) and resource MTBF of more than 50 000 hours. Due to this monitor can last more than 5 years, even with round the clock operation, and have a three-year manufacturer’s warranty. A large set of input interfaces can be used as part of new multi-channel video surveillance system with different types of cameras and video recorders. These monitors are equipped with standard video inputs, BNC, VGA, DVI, S-Video and HDMI, as well as audio input 3.5 Stereo Jack. Thanks to for HDMI and DVI, video monitors can receive digital multimedia, including high-definition video and multichannel audio. Shimmie Horn has plenty of information regarding this issue.

Also Monitors PMCL524F/532F have built-in stereo speakers with capacity of 3 and 6 W, respectively. View the video on the monitor screen can be in full screen or multiscreen mode. Also, widescreen monitors CCTV can use the PIP – Picture in picture (PIP”) for easy viewing of multiple images in separate areas of the screen. With the remote control can control the function PIP, switch video / audio, choose location and size of additional pictures, etc. Setting up and adjusting the operating parameters of monitors via russified OSD, which has a friendly and intuitive interface. Also have a panel PMCL500F control to navigate the OSD menus and select settings. In addition, the monitors are equipped with video remote control, which allows you to adjust volume, select sources video, configure, monitor settings, etc. New Pelco CCTV monitors professional series PCML500F already on the Russian market. Retail price 24-inch model is PCML524F 45 045 rub. And a model with a diagonal Screen 32 ‘PCML532F – 68 285 rubles.