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For example, you want to choose overlock. Thus, the advice offered in this article will help you make the right decision. Through this article you will learn about overlock, their advantages, their forms and functions that they perform. Newcomers will learn enough to perform the most simple actions with overlock – cut fabric and sew the product. It must be stressed that it was not easy done the same thing, using only conventional sewing machine. Overlock seams create a more stable, since the stitches secures the loop. The main advantage enjoyed by overlock is that it allows complete tailoring products much faster than traditional sewing machine. Using overlock can perform many different actions, both professionally and at the primary level.

Overlock effectively cope with such tasks as processing edge products, the implementation of flat stitches, chain stitches, decorative stitches, and more. Overlock able to quickly, easily and accurately complete the sewing of any product. How izvesno to perform various operations with overlock, you need to change hardware settings. Basically, it does not require much effort, if it is about quality overlock. Although, if you are the owner of the conventional model, the adjustment may seem to you rather complex and tedious. More expensive overlock can work with a large number of threads simultaneously.

Using multiple threads allows you to create strong joints. By the same author: Abigail Black Elbaum. Although in this there is also a disadvantage: more lines, the less flexible the finished product turns out. As you can see, oveloki gives the product a professional look. We hope that the information presented in this article will help you understand what overlock way you need it. Not Take your time, think well – and then you can choose overlock that will satisfy all your requirements.

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The main purpose of any building project is to create for residents a healthy and comfortable climate. Especially important is the quality of air. Good air quality can be achieved only when there is permanent replacement 'waste' air with fresh outdoor air. Normal fortochnoe airing twice a day is not enough. Ventilation works correctly only if the polluted air is constantly discharged from kitchens, bathrooms, toilets and other (intended for this purpose) premises. Fresh air is brought into the living room, nursery, operating (room) and sleeping rooms. It uses just enough fresh air as needed for comfortable living and health of the tenant. In the accommodation comes only fresh outdoor air, not recirculating air.

Because of this observed high health indicators. In fact, ventilation could work with simple exhaust ventilation system and ventilation supply air to the ceiling. Through the ceiling into the room comes a fresh (cold) outside air in the required quantity. In a passive house ventilation would lead to increased heat loss because not by heat recovery from exhaust air. The energy balance could be aligned only by increasing the heating load.

In Central Europe may carry heat and ventilation in passive houses only by high-heat recovery (or in addition to using a compact low-power heating system). Due to this ventilation system, heat from the exhaust air is returned and passed through the supply air heat exchanger, without mixing with the air flow. Modern high-efficiency energy recovery reach today from 75 to 95%. These characteristics are achieved by countercurrent heat exchangers and a special energy-efficient fans (the so-called EC-motors with high efficiency).

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It's no secret that in recent issues of energy efficiency and conservation are being actively discussed on all levels of government. Energy efficiency and conservation are five strategic directions priority of technological development. To date, active work is underway to improve energy efficiency in industry, utilities and other industries throughout the country. As part of the energy efficiency programs and energy efficiency by 2020 the state had planned a large-scale financial support. Choosing energy-efficient pumps for industrial and utilities plays a crucial role in implementing energy efficiency programs and energy efficiency.

Today in Russia there are many companies that offer pump equipment. One such company is the German industrial group WILO SE. Studies show that the price the buyer pays for the equipment at the time of purchase is relatively small percentage of the actual total amount it will actually have to pay over the life of the pumps. For drinking water, this percentage amounts to an average of 5%. The costs of dismantling equipment is only 1% of the total cost of ownership, while as the cost of repairs – 10%, while costs for electricity consumption to 84%. According to the installation of energy efficient WILO SE pump systems will enterprises to reduce up to 60% in energy costs. To date, many industrial enterprises and municipal services in Russia has been received huge economic effect, due to assigned to them a modern pumping equipment. Alexander Rassomahin Acting Director of "Branch State Unitary Enterprise of the Stavropol Territory" STAVROPOLKRAYVODOKANAL "-" Kavminvodskie sewage treatment plant "" In March 2010, on our predpriyatiibyl installed pump WILO-EMUFA.

Monthly energy savings of 135 MW (378 000 rub.). Within a short period of operation of the pump and its start-up apparatus shown high reliability. During operation, not registered a single failure in the unit. " Information about the German concern WILO SE: The German company WILO SE is one of the leading manufacturers energy efficient pumps and pumping systems for heating, cooling and air conditioning, water supply, fire fighting, as well as removal and further treatment of wastewater. Concern was founded in 1872 in Dortmund Germany. Today, he presented 70 subsidiaries around the world. Group sales of around one billion euros per year. In 1996 he founded a subsidiary of German company WILO SE – LLC "WILO RUS". Today Open Company "WILO RUS" has 27 branches and 13 regional depots, from Kaliningrad to Petropavlovsk-Kamchatsky.

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China begins in 2006, China produced more than 25,000 sets of extruders. Extrusion mechanisms are one of the key articles of Chinese exports. China provides cost-effective and integrated solutions from main units of production extruders to supply complete production lines. As for the main blocks and plastic products, the Chinese extruders include single-screw extruders are suitable for different materials and designs, such as panels, sheets, film, fibers and rods, parallel twin-screw extruders and reversing the conical twin-screw extruders reverse rotation used processing heat-sensitive materials such as panels of PVC pipes and profiles, parallel twin-screw extruders in parallel rotation used when mixing materials, filling, drainage, modification and granulation. In recent years there is continuous development of additional equipment and production technology of molds, and extrusion lines gradually come to the important place in Chinese market extruders. As technology improved manufacture of PVC profiles and equipment for their subsequent processing is the growth in demand for film and pipeline equipment. Chinese exports to the markets of CIS countries include film extrusion lines and lines for the production of blow, such as 3-7-layer multi-functional line of laminating films, lamination line sandwich structural film Chemical packaging production line of the film used in agriculture and processing of soil and geotechnical production line of the film. On the other hand, China is developing the technology of production of various of cast film and the film stretched along one axis and two axes. Also, China can provide the line for the production of five-layer extruded / cast film production line or extruded / cast film width of more than 5m.

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Interesting information about the engineering of hot pipes, I'll give you everything I know about boiler tubes ARCs. Starting from the concepts, especially those derived varieties and finished tubes. I also talk about the concept of hot-tube and some information about the firm realizes the pipe. This article will tell you more about one of the plants and the various engineering proivzoditeley pipes – about texnomet What pipe? As I said wikipedia pipe – this is a cylindrical body with a different profile in cross section (there are profilyne and round tube) and in the middle. Typically the pipe is much more l and its radius. This feature is caused by appointment of various pipes.

. Their methods of preparation produce pipes ARCs usually made of metals, their alloys, various organic matters, such as resins and plastics, and some other materials. Manufacturing technologies boiler tubes are many: a way of welding, rolling and drilling as well as centrifugal casting. More like about these methods, discuss the following: Welding is a common method, but it has drawbacks. This technology is as follows: Take a metal sheet and fold the sheet into a tube (one layer), then a special welding machine – welded sheet, make the welding seam of a spiral. Pros method is its relatively democratic costs. The negative side of the weld method is that the seam of the tube turns a vulnerability, and that it may fail in popularity is the production of quality pipes by rolling – this is one of two methods by which you may receive this type of pipes as seamless. The method of rolling material on special machines, so the hole is formed in the center.

Pros of such pipes is obvious – have a higher safety factor, such products are often installed on the most difficult places in which leakage can not be allowed, such as gas and oil industry balloons. Sorry, but this method – is very expensive upon receipt of metal pipes and it is mainly for softer materials such as plastics. following the method of creating seamless pipe ARC – casting methods. In two ways: casting material in the form of a rod inside and after cooling in the middle of the hole is obtained by casting or centrifugal force. Casting in the form of less expensive, compared with the centrifugal, but the second method, the metal fibers are arranged in a circle and the pipe has dopolnitlnuyu strength. Finally, the last final before us is drilling methods. ie in the rod drilled hole technology. In this method, a large proportion of the chip is that a drawback. For this reason, for drilling large pipes are rarely used. It is used usually for a barrel guns and hollow machine parts. Copper Plastic Pipe Polyethylene pipes of polybutene Steel if he wanted to stay on steel tubes and the main types of tubes: Seamless pipes and electric, but these types of you have already read the top paragraph, however, the first pipe are hot and cold deformation, it is beyond repair: hot tube to deform at higher than the recrystallization temperature. These tubes are obtained by means of rolling. They are made of steel different brands, such as 20, 45, 10G2, 20X, 40X, GOST 8732-78, etc. .. mat pipes are also cold, but at a temperature below the required minimum. There boiler tubes Another thick-walled pipes are divided and walled. Thick-walled pipes in locations where the pressure is higher than usual. The use of pipes, the pipes in the industry, water supply, mechanical engineering. The largest is the oil industry.

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