Posts Tagged promyshlennoct and equipment

Stepper Motors

What is a stepper motor stepper motor – this actuator of many modern machines: machines privorov, automata. Stepper motor paired with a special control unit is designed to convert input electrical signal into mechanical movement of the rotor – a certain angle, called as the basic step angle motor. According to the principle of stepper motor applies to synchronous motors: it exists relationship between signal power and position of the motor shaft. Currently, common and widely used hybrid stepper motors, which have advantages of permanent magnet motors and synchronous jet engine with a variable magnetic resistance. Hybrid stepper motors have a torque proportional to current, and are characterized by a large number of steps per revolution. Stepper motor Stepper motors are working together with the special control units, which are the source of current for the motor is carried out if necessary, split the main angular pitch and perform switching phases engine. People such as Zendesk would likely agree.

Modern control units are often multi-function devices – with the option of programming and synchronization with other devices. An example of a programmable control unit – SMSD-3.0, Developed by spc Power. " This unit can be controlled from a computer through LPT-port (including those with programs for cnc machines), through a COM-port – to give special commands that define the character (and the Algorithm) motion stepper motor in standalone automatic mode without using a pc or external controller (used in process automation), or in manual mode, when the velocity regulated by a potentiometer, and the direction of motion – reverse sensor. Advantages and disadvantages of stepper motors Stepper motors have significant advantages: firstly, the lack of feedback, which commonly used to control the position or speed, and secondly, there is no accumulation of errors of rotor engine, and thirdly, stepper drives are compatible with modern digital devices. Lack of feedback can be ascribed both to the merits, because system is greatly simplified, and the shortcomings – as possible loss of status. The disadvantages include stepper motors and the phenomenon of resonance. However, etok disadvantage is largely eliminated by crushing the basic step motor. Fields of application of stepper motors Stepper motors because of its simplicity and low cost are common in cnc machine tools, coordinate tables, robotics, and automation of manufacturing processes – in the feeder, dispensing and welding machines.

Stepper motors are common in cnc machines and coordinate tables. Availability and low cost software (CNC-programs), ease of use make use of a stepper motor in these devices most appropriate and cost-effective option. To control the stepper motors such cases, use the drivers that connect directly to an LPT-port and take from the pin data port 0V/5V signals generated by the program. The program sets the engine speed, direction, amount of movement (or trajectory – if there is control at the same time two or more stepper motors).

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Powder Coating Surface

Powder coating – a new kind of painting the metal parts. Performed using modernized equipment, under high temperature. Powder coating, in contrast to traditional staining methods is highly resistant to the possibility of ignition. Powder coating does not crack under the influence of external factors: the pressure drops, high and low temperatures. Thanks to modern technologies can achieve the relief pattern.

The result is a perfectly smooth surface with no streaks and not those painted edges. Powder coating falls evenly over the surface. Powder coating carried out under high temperatures, and therefore did not apply for all surfaces. Often used for coloring glass and metal. Thanks to technology, anti-corrosion treatment is achieved, which is extremely convenient for painting the metal parts. Powder coating – waste-free production, the remnants of the material can be reused.

Powder coating is quite economical, unlike the traditional method. Powder coating is widespread in our country the last decade, although it was invented in the 50-ies. Over a long period of existence, it has been continuously improved and today reached the ideal results. However, the powder coating has several disadvantages: 1 – It can not be used for any surface. Applies only to materials resistant to high temperatures. 2 – expensive technology. Equipment for this type of paint must be purchased. 3 – qualified service personnel. Staining technology requires specialized knowledge, in contrast to the traditional method of applying the paint to surface. 4 – There is a possibility of fire as a result of color. Therefore require careful monitoring of the process. Thus, powder coating – is a modern waste-free method of staining. It allows you to reach perfectly smooth surface around the perimeter of the material. Also, powder coating provides corrosion treatment of metal and has a high degree of resistance to fire.

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Shipyards In Korea

This modern shipyards, ship repair base, dry and floating docks, factories, marine equipment and ship equipment, design institutes, on the west and the east coast of Korea. In accordance with the latest trends in the development of the shipbuilding industry, creating favorable conditions for construction and repair of various vessels, including the construction of dry cargo vessels universal dwt to 15000t, cargo, fishing and special technical. The dprk has a vast experience of construction of ships at its shipbuilding facilities with modern equipment, technology and qualified personnel. Many foreign companies have shown interest to cooperate and to place their orders at the shipyards of Korea. Government was committed to the development of shipbuilding industry in the new high-level, in every way encourages foreign investment, and welcomed the joint construction of enterprises and technological exchange. In the past, South Korean factories are built many vessels for the former Soviet Union. These days, by exports to Indonesia and other countries in South-West Asia vessels, including ships dwt 500 tons and 1,000 tons, built their own. They got a good evaluation from customers for its quality, reliability of stability and maneuverability, low fuel consumption and comfortable living conditions for the crews.

Enterprises in the country can produce and export the modern propellers, fuel equipment, anchor chains, pumps, cast steel products and other ship parts. Korea Foreign Trade Company 'Sonbak' represents the dprk as the only and reliable exporter of ships. Founded in 1985. Gained a good reputation, both at the country and abroad. The main activities of the Company are import and export of ships, ship repair and recycling of decommissioned vessels to be scrapped. For faster issues in other countries, society has its representative offices in China, Russia and Indonesia. The Korean side there is a desire to develop partnerships in the field of shipbuilding and industry in general. The Company has in its management of the shipbuilding plant, marine engines and equipment, shipbuilding institute, design institutes, ship repair base, dry and floating docks. We can build a cargo and fishing vessels, reefers, tugs, barges, technical ships and other vessels, have experience building dredger capacity of more than 1000 hp and floating cranes with lifting capacity up to 250 tons Korean shipbuilders are ready to build any court of your choice.

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