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The economic effect of the introduction into the production process of electric motors and frequency inverters soft starters (soft starters) is achieved by the following factors: energy savings in pump, fan and compressor units up to 50% – 60% due to capacity control by changing the motor speed as opposed to regulation of way on / off, etc.; increase product quality, increasing the volume of production and productivity of manufacturing equipment, increasing the service life of process equipment due to the improvements of the dynamics of elektroprivoda.Pri choosing the model of the frequency converter should be based on a specific task, which should solve the actuator: type and capacity of the electric plug, accuracy and range of regulation speed, accuracy to maintain torque on the shaft of the motor design (dimensions, weight). When you work with a standard induction motor inverter should be selected with the appropriate capacity. If you need a great starting point or a short acceleration / deceleration time, select the frequency converter is a step above the standard. Examples of specific application of the frequency elektroprivodNa water pumping stations: The frequency converter is installed between the supply network and an electric motor to provide feedback. In the pressure manifold at the outlet of pump unit installed pressure sensor. Smooth regulation of frequency converter and the high accuracy of pressure in water supply networks can save energy up to 60% and leads to savings of pumped water, essentially eliminates hydroblows increasing the service life of pipes and valves.

Electroslag welding. The welding process is bezdugovym. Unlike arc welding to melt the core and filler metals are used the heat released during the passage of welding current through molten conductive slag (flux). At the beginning of an arc melted a small amount of flux. Then the electrode was immersed into the slag bath, arcing ceases and the current begins to pass through the molten slag.

Welding perform bottom-up more often in the vertical position the workpiece with a gap between them. To form the seam on both sides of the gap set of brass slides, molds, cooled by water. As in welding sliders are moved in the direction of welding. By type of electrode distinguish electroslag welding con-alkali, a plate electrode and consumable mouthpiece, by the presence of vibration of an electrode – without hesitation and with fluctuations in the electrode on the number of electrodes – one, two and multiple. Usually electroslag welding is used to connect the parts with a thickness of 50 mm to several meters. Elektroshla kovy process is also used for remelting of steel from the waste and get casting. Plasma welding. The process is based on the passage of pressurized gas flows through the electric discharge of high density.

The result is a high- ionized gas called plasma. The temperature of the plasma jet reaches 30 C. llc Plasma arc welding can be performed in the manufacture of both thin-walled parts and components of large thickness of various materials. In as the plasma gas is most often used argon, helium or nitrogen. Composition and plasma gas flow rate depends on the type of electrode and the material being welded.

Before filling the battery electrolyte using a vacuum unit banks batteries are tested for leaks using the device. Rechargeable battery is suitable for filling with electrolyte using a vacuum unit, if the overpressure of 25-30 kPa (0,25-0,3 kg / cm ) is held in battery banks is not less than 5 seconds. Transport and Dosage unit N04-177.00.00 designed for dosed filling of electrolyte dry-charged batteries, their charge, storage and transportation. To speed up the filling process is applied simple device, made of gun-caps, held together with plywood panel. In plywood shield with holes, and the battery cover fixed funnel on the number of batteries in the battery. Funnel located and secured so that when you install the device on the battery of their lower ends included in the flood-hole battery. Glass (plastic) bottles for metered filling of the electrolyte used for up 1-1,5 l depending on the type of battery powered operating state. Volume of electrolyte in each bottle must match the volume required to fill an accumulator battery of this type, namely: battery 6STEN-140M and 140R-6ST – 1,33 l; Battery 12 PT-85R – 0,85 l; for the battery charger 12 st -70 and 12 PT-70M – 0,75.

To fill the battery charger 12 ST-70 and 12 PT-70M filling the electrolyte can be made for 1,5 l in a bottle to fill out her two batteries. In this case, the bottle is put a mark corresponding to 0,75. In order to make glass bottles increased shock-strength is recommended to wrap their three – five layers of gauze, which is then impregnated and dry. The resulting drying enamel on the surface of the solid crust of the bottle prevents the flow electrolyte from the bottle when it is damaged. Fill the electrolyte in the battery of bottles made with plastic funnels. When manually filling used porcelain, plastic or ebonite cup and glass, plastic or ebonite funnel. Dosing of the electrolyte, depending on the brand of battery on a circle plotted corresponding notes.

On the latter point – not products designed for painting stored in bulk in boxes, they should at least shift the layers of soft material that prevents the emergence of scratches, and the best packaging of each product separately. This is especially true common akrilonitrilbutadienovogo plastic (ABS) is one of the most popular plastic for the production of complex shaped products with a high degree of extraction. Methods of dealing with defective color first step in painting technology of plastic, for that matter, and any other materials is the preparation of the surface. For assistance, try visiting ISearch. Poor pre- training is the most common errors. It can cause the following: – a violation of the surface structure as well as lubricants often contain silicone – peeling, as paint applied to the layer of grease, which aims to prevent adhesion – the formation of cracks as possible the existing internal stresses in the plastic are not decreasing.

Time, which seems possible to save Surface cleaning – is often lost time, since in the end very often have a claim, and thus the additional cost of rework. Not to mention the loss of image of the client. As everyone knows when casting products plastic, various lubricants to facilitate their removal from the forms. Grease can contain silicone – one of the best materials to reduce the adhesion. But he is the most important problem for subsequent staining. Personally, I think it is better from the outset not to use grease molds with silicone than to slurp a spoonful of problems because of it, besides, they said Patriarch of the Russian , mold, working with the use of silicone as a lubricant, you can safely throw away In the Internet you can find tips for removing silicone contamination by various antisilikonami used in the coloring of cars, sometimes at small batches, you can use them.

Metal-production – is one of the most developed industries. Isearch may help you with your research. Pipe production has the highest demand, it is caused by widespread use of these products. They serve to transport of liquids and gas, providing their residential and industrial facilities. Without them is unthinkable accomplishment of cities and towns on them water, oil and other fuels makes a long journey from the place of departure to consumer. Greater number of pipes made of steel. This metal has a very high level of durability and longevity. It is divided into two main types: carbon and alloy. More than a hundred years of his produce various kinds of steel and in the intervening period, scholars have failed to find an alternative to the material and replace it with something else.

Fuel – a substance that brings not only benefits for mistreated, and it carries a certain danger, so pipe oil pipelines will be released for exceptional fuel leakage. To produce them choose the best: technology, metal and machinery. Today, find ways to protect the pipeline from corrosion. For this product applied to the special additional coating prevents the metal from rust. Everyone knows what an important role in our country, "black Gold>>. Over thousands of miles it is transported from city to city, from plant to plant. Pipe oil pipelines provides a reliable fuel movement from the point of departure to destination.

Due to this quality as impact resistance, pipelines operated for decades without requiring repair or replacement. Today, many firms are offering to sell the pipe will. This means that they have been used, but are good condition and suitable for further use. The main difference is only in price. The integrity of these groups is guaranteed, as to the implementation of all the goods falleth down to various tests and is thoroughly visual inspection. During the construction of buildings, mount pits, construction of port facilities used piles and other metal items. To reduce costs, you can use the pipe will. Usually this is used products, which have relatively minor defects, or those who went operational shelf life. At the same time they must retain its original structure and strength characteristics.

Among the multitude of ways to work with metal, used today in various enterprises, stands out sheet metal. Sheet metal covers a wide range of different methods: cutting, cutting, bending, stretching The list goes on long enough. Sheet metal, depending on the method employed, or combinations thereof, gives different results on the details for the rocket to the fine weather vane on roof of the house. In this case, sheet metal sparingly spends funds, offers little waste, and allows us to produce the right parts quickly and efficiently. In most cases the parts are manufactured still a way that the material does not loses its strength, even on the contrary, during rolling, such as the metal becomes more rigid and can withstand the increased loads. Sheet metal can also get a product of complex forms, while maintaining all the above-mentioned advantages. Therefore, the sheet metal has found wider application in all major industries, and the particular importance it gained in the automotive industry, which, without sheet metal would be impossible.

In addition, the sheet metal provided an opportunity for the development of the aerospace industry, aircraft manufacturing, construction, oil and gas companies. Of course, the use of processing sheet metal industry is difficult to overestimate. But still, there are other areas of application. Sheet metal – is one way to create decorative items used in construction. From sheets cut intricate openwork patterns, which serve as decoration for doors and gates, roofs and windows. Art sheet metal has been known for a long time, the wizard worked with the material by hand, creating a complex patterns and shapes. Many of the vane, thus created a century ago, still remain as monuments to the arts and crafts. Today, for the decoration of sheet metal products uses modern technology. In particular, for thin and small-scale operation can use the method of laser cutting machine – one of the most progressive methods of sheet metal.

Oil heater type pmt, developed by the design bureau, Thermal Engineering Institute of rao ues Russia. Especially for the gas-fuel oil sector, taking into account all of shortages heaters oil past models, instead of morally aged heaters model pm, pbr and their changes. At the moment, this technique is very even, successfully used in subdivisions of rao, metallurgical, Railways and other areas of the industry both in Russia and in neighboring countries. More than 10 years of experience in manufacturing heaters range itp + proven technical and operational "victory" in the model range. In heaters type pmt, used the technology of the turbulent flow.

They are all fitted with blocks of turbulent parts, thus, the effectiveness of the thermal energy of steam, increases in 2,5-3 times by reference to available models of heaters. Oil heaters range pmt (turbulent), will provide heating oil to 150. C of from 1 to 150 t / h. The total mass heaters itp is much lower mass heaters, such as performance, produced in particular tcd, which greatly simplifies maintenance and repairs. Normal heater pmt, 30-40 weight, which is only 1.3 tons. In particular, for inclusion in the operation of oil heaters, we must not less than 1-1,5 hours to their gradual warming. When connecting the heater pmt in operation, preheating is not necessary to perform. As is the practice at a low cost of fuel oil through the heater, which very often the point at thermal power plants, but on the inside "area" of pipes must be organized deposits, because of the small rapidity of flow of fuel oil in them, resulting in sharply reduced effectiveness of heat transfer. The proposed schematic diagram, use our heaters there is likely to disconnect, a part of the heaters. And because of this support in the past, we have heater, the desired speed of movement of oil in the pipes, so as to exclude the possibility of sediment.

mlm products are manufactured at the plant, located in Saint – Jety (France), and in March 2005 delivered to Russia under the brand loc. Official representative of mlm in our country is the company cvh Material Handling. In addition to production models and stackers Trucks mlm company specializes in producing non-standard models, which are produced to order. Taking into account the specific needs of a number of industries, the company offers its customers a hand-MLM trucks and electric stackers, relevant directives atex 94/9/CE. This pallet truck and equipped with protection against fire, to isolate all of its tools and components that can trigger inflammation. Indeed, for many plants the chemical and petrochemical industry, processing industry of agricultural products, fireworks and other enterprises, in an atmosphere of shops where there are explosives, technology with electronic control is a source of real danger.

On the flameproof versions pilers or loc trucks parts and components are designed in such a way as to exclude the possibility the risk of fire or explosion. The changes allow for complete security operations in the sectors of high risk: lowering the temperature, compatibility with the machine control, etc. Explosion proof version corresponds to the latest security standards and installed to customer, depending on the severity of places where it will operate a particular model of warehouse equipment loc. There are six zones (levels) of risk depending on frequency of use and duration of equipment in potentially explosive atmospheres. Housing models loc is made of steel sheet 5 mm thick, which protects the chassis and electrical parts from damage in case of collisions, accidents, etc. Full article – the magazine 'Material and Technique' 3, 2009. Text , the company cvh.