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introduction：CSB-EPThe unique lubricity and wear resistance of the series of materials is mainly due to the addition of reinforcing fibers in the thermoplastic engineering plastics of the main material、Lubricants and other improvers。Due to the inclusion of thermoplastic synthetic materials，CSB-EPSeries products are highly wear-resistant crystal mesh structure，Special lubricants are also evenly distributed in the mesh。 On account ofCSB-EPA series of materials with self-lubricating properties，No additional lubricant is required in use。CSB-EPThe good self-lubricity of the series products coupled with the overall product is a lubricating material，So the product life is relatively long；And for coating type、Combined type
2014-12-30 Reading quantity 1435
introduction：A rotary compressor that compresses and transports gas by using two vane rotors moving relative to each other in the cylinder。figure Structure and working principle of Roots blower The structure and working principle of Roots blower。The compressor relies on synchronous gears at the end of the rotor shaft to keep the two rotors engaged。Each concave surface part of the rotor and the inner wall of the cylinder constitute the working volume﹐Gas is taken away from the intake port during rotor rotation﹐When moved near the exhaust port and connected to the exhaust port instantaneous﹐Due to high pressure gas backflow﹐Then the pressure in the working volume suddenly rises﹐The gas is then sent to the exhaust channel。The two rotors work alternately。intertrochanter
2014-12-30 Reading quantity 2784
introduction：How to improve equipment operation rate in new dry cement enterprises，Reduce failure or accident rates，Reducing maintenance costs is the development direction of enterprise equipment management。The new dry cement production equipment management has gone through the initial stage of regular maintenance management，Intermediate stage planning maintenance management path。Now we need to step into the observation, monitoring and maintenance phase，Create a good internal and external environment for accessories or equipment，Part of the cost of major repair of cement production equipment is invested in new equipment management in terms of daily maintenance and oil monitoring，Eliminate bad device information to the maximum extent，Extend the service life of accessories or equipment，Improve the operation rate of equipment，Reduces the total device dimensions
2014-12-30 Reading quantity 2789
introduction：SKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]At work，Due to external or internal factors，Change the original fit gap，Precision reduction，Even cause“Bite to death”This is called clearance change failure。External factors such as excessive interference，Inadequate installation，Caused by temperature rise
2014-12-30 Reading quantity 1452
introduction：Abstract：The working principle and basic composition of intelligent instrument are introduced，Its main functions and development are briefly introduced，The future development trend is also discussed。 The emergence of intelligent instruments，It greatly expands the application range of traditional instruments。Intelligent instruments rely on their small size、Strong function、Low power consumption advantage，Quickly in household appliances、It has been widely used in scientific research institutions and industrial enterprises。 １、How intelligent instruments work The sensor picks up the information of the measured parameter and converts it into an electrical signal，After filtering to remove the interference, it is sent to the multi-channel analog switch
2014-12-30 Reading quantity 2798
introduction：The coupling is turned，milling，And broaching and other machining methods processed，Then the whole heat treatment。To ensure adequate mechanical strength，There is also a kind of claw tray on the market is casting，Capable of mass Two types of plum couplings Mass production，And no processing losses。Therefore, the price is much lower than that of machining.But the performance of the casting is not very good。It is best not to use it in some important situations。In addition, the jaw teeth of the casting are easy to beat at high speed or under high load（Tooth loss）。 (1)Compact type、No backlash，Available in three different hardness elastomers
2014-12-30 Reading quantity 1476
introduction： Working principle The reducer is generally used for transmission equipment with low speed and high torque，Knob motor.The power of an internal combustion engine or other high-speed operation is input by a reducer The gear with fewer teeth on the shaft engages the large gear on the output shaft to achieve the purpose of deceleration，The ordinary reducer will also have several pairs of the same principle gear to achieve the ideal deceleration effect，The ratio of the number of teeth of the big and small gears，Its the gear ratio Calculation method Speed ratio=Motor output revolution÷Speed reducer output revolution ("Speed ratio"Also known as"Gear ratio") 1.Know machine
2014-12-30 Reading quantity 2828
introduction： Overcome product silvery and speckle (1)Material problem： ①Material contamination；②Undried material；③Uneven material particle。 (2)Equipment problem： ①Inspection barrel-There are no obstacles and burrs affecting the material flow in the nozzle runner system；②salivation，Spring-loaded nozzle；③Insufficient equipment capacity。 (3)Injection molding problem： ①Material degradation，Reduce screw speed，Reduce back pressure；②Adjust injection speed；③Increase injection pressure；④Extended injection time；⑤Extended total pressure time；⑥Extended injection cycle
2014-12-30 Reading quantity 2794
introduction：１Clean steel production process of converter Use of converter“Duplex process”Production of clean steel，The process flow is shown in the figure１As indicated。The Bessemer process refers to two Bessemer：A converter serves as molten iron“Three kinds of exhaustion”Pretreatment furnace，Another converter serves as a decarbonizing heating furnace。Two furnaces double organization production。 adopt“duplex”Process in Baosteel a steel mill３００ｔThe test was carried out on the converter，The total impurity content is successfully smelted：∑Ｐ＋Ｓ＋Ｔ.Ｏ＋Ｈ＋Ｎ≤１００×１０－６The ultra-pure steel。 ２Converter hot metal“Three kinds of exhaustion”Pretreatment technology
2014-12-30 Reading quantity 2800
introduction：one、The proposed tool compensation Machining the workpiece on a CNC machine with an end mill，It can be clearly seen that the tool center motion track does not coincide with the workpiece profile，This is because the workpiece profile is formed by the motion envelope of the end mill。The center of the end mill is called the cutter point of the tool（4、5The coordinate NC machine tool is called the tool position vector），The moving track meter of the tool point represents the moving path of the tool。In CNC machining，It is programmed according to the workpiece outline size，Or according to the knife point of the trajectory of the size of the program，This should be handled on a case-by-case basis。 In a full-function CNC machine tool，CNC system has tool compensation function，Can press the workpiece wheel
2014-12-30 Reading quantity 2771
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