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introduction：High voltage frequency converters are one category among many frequency converters，It is characterized by high pressure，With the rapid development of modern science and technology，The high voltage and high power frequency conversion speed regulating device is constantly improving and maturing，For many users in the daily use has been a good solution，It is mainly used in large mining production plants、Petrochemical industry、Municipal water supply、Metallurgical iron and steel、Power energy and other industries of various fans、Water pump、compressor、Rolling mill, etc，So how does it work？Lets find out。 Method step： 1、The high voltage inverter is a power control device that converts the power frequency power supply to another frequency by the on-off action of the power semiconductor device。 2、Three phase high voltage voltage into the high voltage switchgear，The power unit in the power cabinet is supplied after input buck and shift equalization； 3、When the control unit contained in the main control cabinet passes
2017-07-01 Reading quantity 315
introduction：Chromium molybdenum alloy steel advantages： Alloy steel varies according to the alloying elements added,With different properties,Such as high wear resistance、Corrosion resistance、Low temperature resistance、Good special properties such as high magnetism.Alloy steel is divided into alloy structural steel according to its use、Alloy tool steel and special performance steel。 On the bike100Over the course of the year，Iron material is the ideal material in terms of rigidity and weight balance。The biggest feature of the iron frame is available in various components，In iron pipes of various thicknesses，Arbitrary selection of the required iron pipe for acceleration。Therefore, you can choose the most suitable size、rigidity、A riding frame，This is good for older drivers who are sensitive to differences of a few millimeters。Its biggest disadvantage is that it is heavier than other materials(formerly)。But the most recent iron frame has been heat-treated，Make thick pipes from thin pipes to use，Its weight wil
2017-07-01 Reading quantity 239
introduction：What is steel？ steel（Steel）：It is steel ingot、Billets or steel are pressed into the desired shapes、Size and properties of materials。 Steel is an essential material for national construction and the realization of the four modernizations，Its wide application、Wide variety，Depending on the shape of the section、Steel is generally divided into profiles、board、Pipe and metal products four categories，In order to facilitate the organization of steel production、Order supply and do a good job in operation and management，It is divided into heavy rail、Light rail、Large section steel、Medium section steel、Small section steel、Steel cold formed section steel，High-quality section steel、Wire rod、Medium thickness steel plate、Sheet steel、Silicon steel sheet for electrical purposes、Strip steel、Seamless tubular steel、Welded steel pipe、Metal products and other varieties。
2017-07-01 Reading quantity 356
introduction：The first thing you have to do is troubleshoot everything. There are two sides to everything，The role of the product is large，It also has its shortcomings，Especially in the operation of production，Because of a little glitch、Some unknown questions，Often also brings greater losses to production，Even shut down for repair。This situation is relatively tight in production、The occasion of high efficiency，The contradiction is especially prominent.。Therefore, in order to help customers correctly judge some problems in the operation of the inverter，Do some related processing quickly，For the production and operation of the enterprise will undoubtedly be very intentional。 one、There is a fault code displayed in the operation of the inverter In the instruction manual of the inverter，There is a column that specifically describes the faults that the frequency converter has a fault code display，See Table 1 for details。 note： ◆ I。、V。Respectively, the output rated current、Input rated voltage,VinYes input voltage。
2017-07-01 Reading quantity 295
introduction：Manufacturing Germany depends on equipment，Japan depends on people，United States by data，What does China depend on?？
2017-06-30 Reading quantity 3826
introduction：What is a mine reducer，Mine reducer is?It is used for deceleration in transportation and transmission machinery and equipment in coal industry，The characteristic of mine reducer is?Gear and gear shaft are made of high strength and low carbon alloy by special processing because they are used in mining，So the material is also relatively special，Features are also very consistent with the environment of use。Has a high carrying capacity、Long life、Low noise、Small size、Compact structure and other advantages。
2017-06-30 Reading quantity 216
introduction：Free cutting steel(free cutting steel)Add a certain amount of one or more sulfur to the steel、phosphorus、lead、calcium、selenium、Free cutting elements such as tellurium，Alloy steel to improve its machinability。Also known as automatic machine tool processing steel，Short for automatic steel。This type of steel can be cut with a higher cutting speed and a larger cutting depth。Due to the addition of easy cutting elements in steel，The cutting resistance of steel is reduced，At the same time, the characteristics of the easy cutting elements themselves and the formed compounds play the role of lubricating cutting tools，Brittle chip，Reduced wear，Thus, the surface roughness of the workpiece is reduced，Improved tool life and productivity。 Free cutting steel is mainly used to make instruments with small forces and strict requirements for size and finish、Watch parts、CARS、Used on machine tools and various other machines，Strict requirements for dimensional accuracy and finish，The standard parts with relatively low mechan
2017-06-30 Reading quantity 315
introduction：Mixer truck Concrete mixer truck（cement mixer,concrete mixer）A special truck used to transport concrete for construction；Because of its shape，It is also often referred to as a field snail；It is made from the chassis of the car、Mixing drum、Transmission system、Water supply installation、Full power extractor...
2017-06-30 Reading quantity 250
introduction：The pressure controller is made of metal316LDiaphragm type sensor，Can be used in neutral oils、Gaseous medium and water。The setting value of the controller is adjustable，Range of regulation-0.1 ~ 40MPaRange range is optional。 Explosion-proof products explosion-proof mark isExed II CT6，It can be used for gases that have no corrosive effect on pressure sensing elements、Medium such as liquid or steamIIA、IIB、IICclassCT1~ CT6Automatic pressure control for a group of explosive gas mixtures。The pressure controller can be used for neutral or corrosive gases and liquid media。The set value range is adjustable，The adjustment range is0.02～42Mpa．The switching difference is not adjustable．Pressure controllers include a wide range of varieties,There is a differential pressure controller,Explosion-proof pressure switch,Explosion-proof differential pressure switch,Pressure transmitter,Differential pressure transmitter,Air pressure switch,Wind pressure transmitter,
2017-06-29 Reading quantity 308
introduction：The fluid medium temperature controller realizes automatic adjustment by using the principle of thermal expansion and cold contraction of temperature-sensitive fluid and incompressibility of liquid。When the control temperature rises, the thrust generated by the expansion of the temperature sensitive liquid will turn down the heat medium，To reduce the output temperature；The temperature-sensing liquid shrinks when the control temperature decreases，Turn up the heat medium under the action of the reset device，To increase the output temperature，Thus, the controlled temperature can be reached and maintained within the set temperature range。 The working principle of bimetal temperature controller is based on the principle of thermal expansion and contraction of objects。Heat expansion and cold contraction are the common characteristics of objects，But different objects have different degrees of heat expansion and contraction。The two sides of the double gold sheet are conductors of different substances，The doub
2017-06-29 Reading quantity 317
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