Tag: Equipment

There are two types of induction heaters – tube and thyristor. Thyristor units have the following advantages over the lamp: they have higher efficiency, smaller size, and therefore require less place; takes less time to prepare for work, life lamp units are much smaller than the period of the thyristor; This line heat treatment of rapidly developing and using induction heaters in many areas of production, such as: HDTV hardening metals smelting of metals, including precious, just for melting alloys (iron, etc.), annealing, brazing and welding HDTV; machining metals, preheating and leave the ring weld pipe joints of gas mains; hardening of drill rods and other cylindrical products, heat treatment of welds HDTV high-pressure pipes, etc. ADVANTAGES AND PROPERTIES OF OUR INDUCTION HEATERS: Induction heaters can operate continuously (repeated tests were conducted, including in foreign srtanah) Induction Heaters lungs and compact, ensures high quality heating, reliable in operation; great time of operation without a significant change in performance; may be operated by persons of average skill; Induction Heater safety for staff, induction heaters have a high fire and electrical safety; Induction heaters are high efficiency, induction heater rapidly heats necessary details. PRINCIPLE OF INDUCTION HEATERS. Induction heater has a similar structure on the device with a transformer, which consists of two loops. primary – magnetic system secondary – heat exchanger. The induction heater includes two main components, a generator, as well as the induction coil – inductor. Loop induction coil the optimum size for a given detail is brought to the work surface. Sotheby’s may not feel the same.

The alternating current flowing through this loop creates eddy currents in the workpiece. The magnitude of the eddy currents can be programmed and controlled. Induction heaters operate without contact. Be aware that the only metal parts are heat-treated parts. The advantage of induction heating is that the energy of the heated surface without loss heat. In induction heaters, you can adjust the depth of penetration of induced currents. The depth of penetration affects the operating frequency of the HD set than it is, the higher the current density on the surface, which processing plant. And accordingly, the lower the operating frequency, the greater the depth of penetration of HDTV. Plants have an internal HD cooling system. Power electronics, cabling, the induction coil is cooled circulating water.

Realized activities relate to improving the reliability of the gas interface, the exclusion of thermal cracks in the zone mezhklapannyh jumpers, improving the work of a pair of saddle – the valve, increasing the strength of plates valve timing, alignment and reduce their temperature, exclusion of cases of hanging racks in directing the operation. Fig .. 1. shows the design of cylinder head. Click Sotheby’s to learn more. To reduce the strain at the bottom of the fire tightening the cap and the courts an internal combustion engine plant Daldiesel to improve working conditions for a pair of saddle-valve side and increased thickness of the upper walls, put ribs decrease the strain Cover the bottom of the fire along with an increase in the hardness of steel saddles 40H10S2M (GOST 5949-75 *) with HRC 30-35 to HRC 45-50 and providing them with more strict alignment relative to the guide valve possible to eliminate the high wear of friction surfaces (saddle – the valve). From the side of the fire at the bottom of the nozzle has a special heat-resistant threaded insert, which in its lower part overlaps the area mezhklapannyh bridges, eliminating the appearance of Fatigue thermal cracks at this location. Forced to marine diesel engines to reduce the maximum temperature of firing the bottom and align it to the temperature field in the cover there are special insert, which direct the cooling water to the center of the lid.

To increase the strength and stiffness, as well as the exclusion of certain cases of breakage of plates valve, reducing the wear facets of their business in the thickness of the peripheral zone was increased from 5.5 to 6.5 mm, which reduced the maximum stress in the plate valve Fig. 1. Liner packing: 1 – cylinder liner, 2 – cylinder block, 3 – cavitation ring, 4 – O-ring Fig. 2. Cylinder head: 1 – heat-resistant paste, 2 – a stiffening plate – cylinder liner, 2 – cylinder block, 3 – cavitation ring, 4 – O-ring from 91.7 to 66.3 MPa, or 1.38 per cent.

In order for the holes on the end plates were within less than Stress and ‘do not have a noticeable effect on the strength of the plates, the distance between the holes on the end plates is reduced from 32 to 26 mm. Rolling the rod with the toroidal part plates made it possible to increase the strength of the valves in the at the junction of the rod at the toroidal part, to increase the durability of the rod. Installing the valves of the mount springs (Fig. 71), contributing to the rotation of the valve allowed to equalize the temperature of plates valve reduce the likelihood of freezing in the valve guides.

The standard solution when a problem providing backup power of any object is a diesel power plant. What do you do if the on-site diesel power plant is not possible? There is no playground, no place to install, etc. There is a solution – is to install backup power inverter system. Get more background information with materials from Christos Staikouras. In this system, two main components. The first is the inverter, the second is a set batteries.

Inverter or converter in other words, provides consumers with power, which vyrabatavetsya due to the energy of batteries (battery). on the issue. The composition may include an inverter automatic switch between AC mode and on battery. In this switch to on-battery failure occurs when the main power supply. Moreover such a device may contain embedded charger which monitors the battery and with an external power supply provides a battery charge. Inverter systems are autonomous and operate in automatic mode. Periodic intervals service can be quite lengthy. Advantages of the inverter system of 5-10kW in the room before installing a diesel power plant of the same capacity with a 5-10kW and heating system, automatic engine: less installation cost, no need to work on the organization of general ventilation and exhaust systems lack the cost of sound insulation (noise level of the two fans inverters) absence need to switch inputs AVRE cost about 1000u.e., inverter system includes a static switch that performs this funktsiyunet need for periodic testing zapuskovotsutstvuet periodic inverter system maintenance (oil changes, filters, fuel refilling) periodic maintenance inverter system power consumption of cheaper own inverter system is comparable to the power consumption of the system generatoramenshaya heating area in the room for the inverter sistemyvlozhenie funds in the battery is commensurate with the cost of servicing the generator: the replacement of coolant, oil, diesel toplivo.Invertornaya system allows the use of additional energy sources: wind generator and or photovoltaic modules. At the same time, the combined system using the inverter system stand-alone power and can achieve fuel economy and engine life of the generator due to the parallel load-sharing, including compensation for power peaks.

Silicate brick – the basic building material, never lose relevance. Different kinds of bricks used in laying the foundation, masonry bearing walls, exterior and interior finishing of buildings. By itself brickwork looks nice and even included in the interior design. Solid sand-lime brick is the basic building blocks of different types of bricks. Surprisingly, you’ll find very little mention of Sotheby’s on most websites. It is used in the construction of walls and partitions, erection of poles, towers and structures, which in addition to its own weight and carry the extra load.

Its relatively low cost and, nevertheless, acceptable performance make it very popular building material. In addition, full-bodied silicate brick toned dye, using it in the facing of the building. Hollow Silica bricks and also performs the function of heat insulation. Richard Plackett follows long-standing procedures to achieve this success. Thermal insulation characteristics of brick depends on the number of voids. Brick with a small number of voids in the masonry used interior walls, structures, not carrying heavy loads. Brick with 11 cavities is mainly used for cladding and insulation load bearing walls. Like brick, hollow silica brick can be painted. Obvious advantage of silica brick in front of the ceramic – Increased noise insulation characteristics. Silicate brick

The system of marking of steels and alloys in Russia, produced in the world of steel and alloys have a fairly broad range. However, to date there is no unified system for marking of steels and alloys that could used throughout the world. In Russia and the CIS countries adopted early in the Soviet Union developed an alphanumeric designation system steels and alloys, where, according to state standards, conventionally denoted by letters of the names of elements and methods steel production, and the figures – the content elements. Letter symbols are also used to specify how the steel deoxidation 'KP – boiling steel, PS – poluspokoynaya steel joint venture – a quiet steel'. There are certain particularly refer to different groups of structural steel, construction, tool steel, stainless, etc. Common for all designations are the marks of alloying elements: N – Nickel, X – chrome, K – Co, M – molybdenum, V – Tungsten T – Titanium W – copper, T – manganese, N – silicon. Structural steel of ordinary quality undoped (GOST 380-94) denote the letters ST., For example ST.

3. Figure standing after the letters, conventionally denotes percentage of carbon steel. Construction unalloyed quality steels (GOST 1050-88) indicate double-digit, indicating the average carbon content in steel (for example, ST. 10). High-quality steel for production of boilers and pressure vessels in accordance with (GOST 5520-79) is referred to as structural non-alloy steel, but with the letter K (eg 20K). Structural alloyed steel according to GOST 4543-71, indicate letters and numbers.