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introduction： Made by powder metallurgy﹑A material consisting of metal and non-metal having high friction coefficient and high wear resistance﹐Also known as sintered friction material。This material usually consists of a base metal(copper﹑Iron or its alloy)﹑Lubricating component(lead﹑graphite﹑Molybdenum disulfide, etc)﹑Friction component(Silicon dioxide﹑asbestos)3Partial composition。Its organizational characteristics are﹕Various particles with special properties are uniformly distributed in a continuous metal matrix。The metal matrix exhibits good thermal conductivity and withstands mechanical stress﹐Uniformly distributed mass
2015-03-31 Reading quantity 2780
introduction： ·temperature Temperature measurement and control is very important in injection molding。Making these measurements, though, is relatively simple，But most injection molding machines do not have enough temperature points or lines。 On most injection molding machines，The temperature is induced by a thermocouple。A thermocouple basically consists of two different wire ends connected together。If one end is hotter than the other，A tiny telegraph will be generated；The more heated，Stronger signal。 ·Temperature control Thermocouples are also widely used as sensors in temperature control systems。On the control instrument，Set the desired temperature，
2015-03-31 Reading quantity 2881
introduction： High speed centrifugal separator with tubular drum。Its drum has a smaller diameter，Large length，High speed of revolution，For the treatment of components in low-concentration suspensions and emulsions that are difficult to separate。figure[Tubular separator]The structure of the separator。The drum is supported by a slender shaft，Upper drive，A vibration damping device is provided at the lower end of the drum，To reduce vibration during start-up and shutdown。After the drum reaches the working speed，Because the center of gravity of the drum is much lower than the fulcrum of the shaft，Automatic alignment during operation，Work smoothly。The diameter of the drum is45～150millimeter,The ratio of length to diameter is4～8。The emulsion is added to the lower end of the rotation drum，Longitudinal inside the drum being rotated
2015-03-31 Reading quantity 2773
introduction： In the colder winter，After starting the engine, whether the hot car is needed has become the most concerned topic of the owner。Generally speaking，The EFI engine and the old carburetor engine should idle to warm up the car after starting，It just varies in length and temperature。 Six success rates are used to overcome resistance The engine was left to rest overnight，The residual pressure of lubricating oil on each friction surface has long disappeared，Loss of oil film protection，Low temperature greatly increases the viscosity of lubricating oil，Poor adhesion and fluidity。now，The motion resistance to starting the engine is greatly increased，outstart60%The power used to overcome the movement
2015-03-31 Reading quantity 2785
introduction：flavour（fruit）Yogurt process flow ┌→Flavoring pigment→package→Finished product（Flavored yogurt） │ Stirred yogurt→inoculate→cooling┼→Mixed fruit→package→Finished product（Fruit yogurt） ↑│ │&
2015-03-31 Reading quantity 2802
introduction：What are the rules for the maintenance of electric stackers 1 、Safety rules for the maintenance of all-electric stackers Maintenance work can only be carried out after systematic learning。 Keep the maintenance area clean and hygienic。 During maintenance，Dont bring loose items or valuables with you。 Look out：When servicing the electrical system of the all-electric stacker，If the metal comes into contact with energized electronic components, it can cause short circuit or combustion。therefore，Please take off your watch.、Earrings or other accessories。 1、Full electric stacker before repair，Unplug the electrical outlet first，Disconnect power。
2015-03-31 Reading quantity 2897
introduction： At present, the measurement control system designed according to Coriolis principle is widely used in cement industry in powder control，This paper mainly introduces the Coriolis scale measurement control system developed by Hefei Cement Design Institute according to this principle。 keywordPLCTouch screen inverter Coriolis rotary kiln 1introduction Feed the rotary kiln and calciner continuously and accurately，Is to reduce coal consumption，Improve clinker quality，The key factor to ensure the safe and continuous operation of the equipment。therefore，The feed metering control device must be stable、accuracy、Quick action and other characteristics。 original
2015-03-31 Reading quantity 2878
introduction：jichuang jinjixiang Machine feed box feed box of machine tool It is used to change the feed rate of the machine tool when cutting（See cutting parameters）Or change the surface to form a relative motion relationship between the tool and the workpiece in motion。The change of feed quantity is graded and graded。There are two kinds of progression series with progressive feed: arithmetic series and arithmetic series。The feed box uses an exchange gear、Slip gear、Ratchet mechanism、Keying mechanism、Buckling mechanism、Swing tower gear mechanism、Two-axis sliding common gear mechanism and three-axis sliding common gear mechanism, etc（See picture
2015-03-31 Reading quantity 2790
introduction：1、Definition of carbon steel and five elements in steel carbonaceous2The following iron carbon alloy is called steel。The five elements in carbon steel refer to the main components of the chemical composition，namelyC、Si、Mn、S、P（carbon、silicon、manganese、sulfur、phosphorus）。The second is the inevitable mixing of gases in the steelmaking process，containingO、H、N（oxygen、hydrogen、nitrogen）。In addition，In aluminium—Silicon deoxidation sedation process，Must contain in the molten steelAl，whenAls（Acid soluble aluminum）≥0。020when，It also has the effect of refining grain。 2、How is steel made？ The main task of steelmaking is to press
2015-03-31 Reading quantity 2881
introduction：one、Technological advantage The characteristics of this technology are mainly reflected in the following aspects： （one）、Good wear resistance： The wear resistance of metal surface can be greatly improved by salt bath composite treatment 1、The results of rolling wear test are as follows： 2、The sliding wear test results are as follows： Under the conditions of this experiment，45steel（Raw material）After composite treatment with salt bath，Wear resistance ratio of rolling wear test20Steel carburizing quenching high9.6times，than45High frequency hardening of steel16.2times，than45Steel is conventionally quenched high16.3times。45Hard chrome worn steel
2015-03-30 Reading quantity 1442
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