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introduction： Working principle: Buried tube fluidized drying is a new drying technology developed on the basis of conventional fluidized bed drying and indirect heating drying。It immerses a tubular heat exchanger in a fluidized dry material，The heat required for material dehydration is provided by the buried pipe heat exchanger and the hot air used for fluidization，To meet the requirements of fluid drying of materials with small air volume。 peculiarity: 1．Energy conservation Since most of the heat is caused by the heat transfer efficiency about90%The built-in heat exchanger is provided，Hot air is mainly used as a power medium to ensure normal fluidization，Specific conventional flow
2015-01-05 Reading quantity 2859
introduction： inSKFbearing[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]Being installed，What engineers are most concerned about is how to operate correctly，If not done properly, it could causeSKFbearing[SKFbearing:SKFStand for
2015-01-05 Reading quantity 1465
introduction： The reducer is used for the first time ，Half a month after the first refueling run，Drain the oil from the box，Replace the oil to the center line of the oil window。 Cycloidal reducer、Gear reducer、The worm gear reducer needs a new oil change every six months，Summer oil needs to be changed in summer，Winter oil needs to be changed in winter，Drain the old oil when you change it，Do not mix old and new oil together。 One thing to note；Clean the impurities of the end cover of the reducer before filling the oil，No foreign matter is allowed to enter the gearbox during the refueling process，This will wear and slow down
2015-01-05 Reading quantity 2913
introduction：one、Rolling millNSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）Be established in1916years，It is the first manufacturer to design and produce bearings in Japan。NSKThe function of the bearing fit is to makeNSKThe stationary ring and rotating ring of the bearing are respectively the stationary part of the installation part(Usually a bearing seat)And rotating part(Usually an axis)Solidify together，Thus, the basic tasks of transferring the load in the rotating state and defining the position of the moving system relative to the stationary system are realized。]peculiarity： 1、The roller and the raceway are in line contact or repaired line contact，Radial load can be large，Used to accept heavy loads
2015-01-05 Reading quantity 1459
introduction：The friction between the contact surface of the active part and the driven part of the clutch，Or use liquid as a transmission medium(Hydraulic coupler)，Or a magnetic drive(Electromagnetic clutch)To transmit torque，To allow a temporary separation between the two，It can be gradually joined，In the transmission process, two parts are allowed to rotate each other。 At present, the friction clutch with spring pressing is widely used in the automobile(Referred to as friction clutch)。 The torque emitted by the engine，Through the flywheel and the friction of the contact surface between the press disc and the driven disc，Pass to the driven disk。When the driver presses the clutch pedal，Through the transmission of parts，Make the big end of the diaphragm spring
2015-01-05 Reading quantity 2813
introduction： abroad，For the stepping system，It mainly adopts two-phase hybrid stepper motor and corresponding subdivision driver。 But at home，Majority of users“subdivide”I dont really know yet，Some just think，Subdivision is used to improve accuracy，Not so much，Subdivision is mainly to improve the operating performance of the motor，It is hereby explained as follows：The subdivision control of the stepper motor is realized by the driver precisely controlling the phase current of the stepper motor，Take the two-phase motor as an example，If the rated phase current of the motor is3A，If using a regular drive（Such as the common constant current chopper mode）Drive the motor，The motor runs every step，its
2015-01-05 Reading quantity 2808
introduction：Machining process system and error . Familiar with process system concepts， . Understanding the errors of the system is somewhat difficult。In fact，The process system is also manufactured，It is also bound to have manufacturing errors；In use，Machine tools in the process system、cutter、The fixture must have the error caused by wear；cutter、There will also be errors in the installation and adjustment of the workpiece during processing。These errors are related to the structural state of the body in the system。In the cutting process will also produce a system force、Error due to heat。 Factors that affect machining accuracy can be summarized as follows： .
2015-01-05 Reading quantity 2883
introduction：Clean the surface of the machine before inspection，Then remove the machine spindle bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Peripheral parts。Oil seals are fragile parts，Careful disassembly is required，Do not apply excessive force，Then carefully inspect the oil seal and its surrounding parts，If adverse symptoms have been shown，Be sure to replace，Bad oil seal will
2015-01-05 Reading quantity 1564
introduction： The balance valve is in hydraulic condition，Play a dynamic role、Static balance adjustment valve。Such as：Static balance valve，Dynamic balancing valve。 Static balance valve is also called balance valve、Hand balancing valve、Digital locking balance valve、Two-position regulating valve, etc，It is done by changing the gap between the spool and the seat（opening），To change the flow resistance through the valve to achieve the purpose of regulating the flow rate，The object of action is the resistance of the system，The new water can be evenly distributed according to the proportion calculated by the design，Each branch increases or decreases proportionally at the same time，Still meet the current climate needs of some of the load flow requirements，In thermal equilibrium
2015-01-05 Reading quantity 2825
introduction：This paper focuses on diamond film(CVD)Application in cutting tools，The material requirement and manufacturing method of diamond film welding composite tool are discussed。According to the manufacturing process and application requirements of diamond well-matched cutting tools，The chemical composition selection of brazing filler metal for vacuum self-active brazing was analyzed，The principle of determining the chemical composition of active needle material and the chemical composition of common needle material are put forward。 0．introduction Diamond film has high hardness、wear-resistant，Low friction coefficient，Good thermal conductivity and other characteristics，It is the ideal material for manufacturing cutting tools for non-ferrous and non-metallic materials。The tool of artificial diamond film is divided into two
2015-01-05 Reading quantity 2815
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