Tag Archives: industry

Water-jet propulsion has many advantages over 'conventional' complexes with a propeller, but nevertheless they have yet to gain popularity among fans of water recreation. The following well-known writer and marine Dag Pike journalist tries to understand why some water-jet propulsion katerostroiteli use, while others ignore them, and answer the question – whether the water cannons on the market prospects for pleasure boats? In use modern water-jet propulsion much really unusual. The strangeness is that today they are used exclusively in two like the opposite – 'polar' – areas of shipbuilding. It is either multi-shaft installation of high power water-jet on a giant high-speed ferries. Or is it a water cannon at the smallest high-speed machines – jet-, and for them it is the only way an engine.

All the same basic the market for recreational motor boats are still a boat and motor boats with propellers. (Let's not talk about a very small number of outboard engines, manufactured with water cannons.) For the uninitiated, a water jet propeller is just the same prop, but enclosed in a tube, but in reality it is one of the most difficult types of propulsion systems. Water cannon above all – a pump that sucks water through the inlet hole, it accelerates and pushes out through the nozzle. The nozzle can be rotated in the horizontal plane, providing a rotation of the vessel and a nozzle shut-off baffle can turn back the stream of water that will ship reverse. In the water cannons are quite large losses due to friction as the water flows inside the pipe, but this disadvantage is compensated by high efficiency pump impeller – impeller, the impeller water jet.

Sources of DC welding rectifiers are used, along with welding generators, converting mechanical energy into electrical energy. Welding DC generator consists of a stator with magnetic poles and armature winding and with collectors. When the generator armature rotates in a magnetic field produced by the poles of the stator. Armature winding crosses the magnetic lines of force of the poles of the generator, and it turns there is an alternating current, who, through the collector is converted to DC. For the collector pressed carbon brushes, through which direct current is supplied to the output terminals. Go to the terminals attached welding wires to the electrode and the workpiece. All generators have a magnetizing winding, fed from an independent source (separately excited) or from the generator itself (a self).

By varying the magnetizing current, continuously adjustable control circuit voltage, and hence the operation of the generator. In the generator will have a consistent and exciting winding with few turns. On this winding connected in series with the arc, current flows, is equal to the current strength of the arc. Sequential winding is partitioned. Include either all of the turns or coils of by adjusting the welding regimes in the stepped two bands. Welding generator operates on different electric schemes. They may be from outside the incident response (generators GEO converters SAR-300 SAR-500, etc.), with a hard or gently dipping feature (such as GHA converters PSC-500) and universal (CSP-300 converters and CSP-500). The most widely used welding generators with falling external characteristics, working on two schemes: with independent excitation and self-excited and bucking consistent winding.

The engine on trucks mounted six-cylinder, four-carburetor engine with a vertical one 'in-line arrangement of cylinders. The engine is mounted on the chassis frame on four pillars that are rubber pillows. In the cylinder block are pressed dry shells in acid-iron. Exhaust valve seat inserts are made of special heat-resistant cast iron high hardness, saddle inlet valves are made directly in the body of the block. The cylinder head is made of aluminum alloy, is set to staleasbestovoy strip and attached to the block heels. Under the nuts bolts supplied steel washers. Must periodically check the mounting of the cylinder head, not allowing passage of cooling-lived bone and gas.

Crank and distribution mechanisms in normal operation the forklift is necessary through 1200-1400 hours to replace the piston rings, valves and get used to clean the cylinder head and pistons from scale, and valve box and its lid – from the oil deposits. Liners and connecting rod bearings need to inspect and replace if necessary. Periodically check and, if necessary, adjust the clearance between the valves and pushrods. Sign of a large gap between the pushers and the valves are knocking at the valves and the fall engine power. Sign of the small gap at the inlet valve is a "sneeze" in the carburetor, the exhaust – explosions in the muffler. These phenomena are especially noticeable when the engine is at a high frequency of rotation crankshaft. Continuous operation of the engine reduce the gap will inevitably lead to burnout head valves and their seats and as a consequence, the failure of the engine. On a cold engine knock may be weak valves, which disappears after the warm-up.

Adjustment of the gap between the pushers and the valves to make the following order: – establish the first cylinder piston in TDC position compression stroke – lift the valve box covers – In this position, adjust the exhaust valves in 6, 3 and 5 cylinders and the intake of 1, 2 and 4 cylinders – Crank one turn and adjust the exhaust valves in 2, 4 and 6 cylinders and the inlet 3, 5 and 6 cylinders.

These companies offer a 1 to 3 years guarantee on choppers, but do not have the necessary equipment for repair, adequate storage facilities to accommodate a wide range of products and have trained qualified personnel. Thus, informal dealers do not actually responsible for product quality, and present them to the claims in the case of defective goods will be very difficult. Buy equipment from an authorized dealer provides many advantages over purchasing illegally imported. Guaranteed quality products manufacturing plant offers a 2-year warranty and after-sales service for all kormoizmelchiteli purchased from an authorized dealer. It should also be noted that the official dealer sells only new kormorezki made in accordance with applicable State standards of Ukraine, complete with all necessary documents.

Quality of Service Official dealer guarantees the highest quality customer service, both at the time of purchase kormorezki and eeo if the subsequent operation. The key to quality service is: – highly qualified staff company, since all the managers and consultants – the graduates of NTU KPI – presence continually replenished stock – availability of special technical literature from the manufacturer. Significantly different and philosophy of official and unofficial importer. If the main objective is to increase the dealer’s informal income, the official representative of the set itself other tasks – in the first place, to meet all customer needs and support a high brand image, “Electric” on the Ukrainian market. Buying food chopper “Ikor” or “Elikor” from an authorized dealer – LLC “Electric” – you are completely protect yourself from buying low quality goods. We will give professional advice on any matters of interest to you. That small amount you can save by buying illegally imported goods, later, as a rule, leads to significant financial costs and loss of time. Thus, the buyer finds out more about the benefits of an official supplier, the more secure it will be protected by purchase of an electric motor. The same can be said for quality service, which helps reduce accidents at work. Pledge of service excellence – an individual approach to customer request! Experienced staff are always ready to provide comprehensive professional advice on relevant issues, you can get in touch with us by phone at (045) 519-18-20, 554-37-24 WORK WITH THE OFFICIAL REPRESENTATIVE The manufacturing plant PLEDGE OF LONG-TERM AND MUTUAL COOPERATION.

Our world is growing rapidly. The fact that yesterday there was actual science fiction writers in the pages of science fiction, today become commonplace and we can not imagine how people could live without these earlier innovations. Probably everyone has heard about in history classes shock Komsomol construction projects, where new businesses and the city were built decades by extreme human suffering, and even at the cost of people's lives. It would seem that New technologies may be in construction? People engaged in this business for thousands of years and all there was simple: stone, brick, timber, clay, sand, cement … All it had to be connected to each other and the result is ready building, suitable for living or production.

Even the breakthrough of the last century in the construction industry involving the use of concrete, could not change the main quality of construction – namely, time erection of structures. Of course, compared to the decades of construction of the Pyramids in Egypt, the timing is much reduced, but still at a building went years. That time of construction, as well as low level of the Unification of construction were the main obstacle to progress in the construction industry. And just at the beginning of this century occurred in this industry is truly unique, revolutionary, technological breakthrough. And it happened thanks to technology, construction of buildings bystovozvodimyh (BVZ). Construction technology of prefabricated buildings is to use as a totally new building materials and use has become traditional, in their organic connection to get the best result. There are several types of structures are: – pre-fabricated modular buildings, when structures are composed of several separate modules – block-containers, which makes it possible to transport such a building and quickly collect them in a new place.

Usually, modules have no internal supports, which significantly increases the area of these buildings. In addition, the modules provide an opportunity to redesign the building to meet specific requirements. Such buildings are not distinguished by special architectural delights, their main purpose is to solve specific practical problems – pre-fabricated modular buildings are built directly on the site of pre-made on the manufacturer's design elements, such buildings are erected for longer than modular, they can not reschedule the course, but they have a much lower cost compared to the technology block-container – frame-panel prefabricated buildings – the hallmark of this type is that the foundation of the building is a metal skeleton. The frame of the building is a flat steel frame, rigidly fixed / hinged on concrete foundations and unfastening each other struts and metal purlin made up of special steel, more likely to use I-beams. Then this skeleton is sheathed sandwich panels made of sheet steel with plastic coating, as the roof decking or use metal roofing. Using the technology of prefabricated buildings can be constructed, industrial buildings, residential buildings, hangars, warehouses, shopping centers, sports and exhibition complexes, service stations and special-purpose facilities, office buildings and storage for agricultural purposes, shop for food production, and pig barns and much more.