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introduction：taishenghuabeng Titanium sublimation pump titanium sublimation pump Vacuum pump pumped by chemisorption of fresh titanium film。This pump has a simple structure、High pumping speed、oil-free、Anti-radiation and no vibration and noise characteristics,Starting pressure is1～10(Mr，The working pressure range is10(～10(Mr,It is an important vacuum pump for obtaining oil-free ultra-high vacuum。Titanium sublimation pump in electronic devices、High energy accelerator、Controlled thermonuclear reaction apparatus and space simulation apparatus，And the surface physical test and so on have been widely used。
2015-03-14 Reading quantity 2786
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]The common installation tool is a hand hammer、Copper bar、sleeve、Special backing plate、Snail clamp、Press, etc.，The measuring tool has vernier calipers、micrometer、Dial gauge, etc，However, different tools should be selected according to different bearing models。Selective use
2015-03-14 Reading quantity 1432
introduction：you(qi)mo zhendang oil（gas）Membrane oscillation oil/gas whip Plain 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。]A kind of self-excited vibration of the supported rotor due to the special mechanical properties of the fluid film。1924years，YankeeB.L.Newkirk sumH
2015-03-14 Reading quantity 2778
introduction：inTIMKENbearing[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。]In the process of processing，The outer ring of the bearing、Inner ring、How do the roller and cage fit together。In a nutshell，Is to import the bearing first[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brand of imported bearings
2015-03-14 Reading quantity 1561
introduction： Stamping parts by punching and die on the sheet、strip、External forces are applied to pipes and profiles，To cause plastic deformation or separation，Thus, the forming processing method of the workpiece with the desired shape and size is obtained，The resulting workpiece is a stamping part。 Stamping parts are made by press and die on the sheet、strip、External forces are applied to pipes and profiles，To cause plastic deformation or separation，To obtain the desired shape and size of the workpiece(Stamping part)The forming processing method。Stamping and forging are both plastic processes(Or pressure processing)，Collectively called forging。The pressed billets are mainly hot and cold rolled steel plates and steel strips。 Steel all over the world
2015-03-14 Reading quantity 1418
introduction： The heat generated by the friction between the end faces of the workpiece is used to make it reach a plastic state﹐Then the top forging completes the welding method。When turning the workpiece, the chips tend to stick firmly to the tool head﹐Poor lubrication between the shaft and the bushing can also result in partial welding﹐Friction welding was invented from these phenomena。Friction welding can be divided into two types: continuous drive friction welding and inertia friction welding。①Continuous drive friction welding﹕A workpiece is rotated by an electric motor﹐At the same time, another workpiece is pressed towards the rotating workpiece﹐Make the contact surface friction with each other to produce heat and a certain plastic deformation﹐And then stop spinning﹐Apply simultaneously
2015-03-14 Reading quantity 2784
introduction：The main component of mechanical principles。It studies the forces on machinery during operation、The interrelationship between the mass of each component in a machine and the mechanical movement，It is the theoretical basis of modern mechanical design。 The content of mechanical dynamics research includes6Various aspects。 ①The real motion law of a mechanical system with certain inertia parameters is obtained under the action of known external forces。To simplify things，Mechanical systems are often regarded as having ideals、Treatment of rigid body systems with stable constraints。For mechanical systems with one degree of freedom，The concepts of equal potency and equivalent mass can be applied to the rigid
2015-03-14 Reading quantity 2776
introduction：Self-aligning roller bearings[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。]It is between the inner ring with two raceways and the outer ring with spherical raceways，Bearing fitted with a drum roller。The center of curvature of the outer raceway surface is consistent with the bearing center，Therefore, it has the same aligning function as the automatic aligning ball bearing。On axis、When the casing flexes，Can be
2015-03-14 Reading quantity 1450
introduction：1、Why can the rotation speed of the motor be freely changed？ 1: r/min Unit of rotational speed of a motor：Rotations per minute，It can also be expressed asrpm. Such as：4Polar machine 60Hz 1,800 [r/min] 4Polar machine 50Hz 1,500 [r/min] 2、The speed of rotation of the motor is proportional to its frequency The motor referred to in this paper is an induction type AC motor，Most of the motors used in the industrial field are of this type。 Induction type AC motor（Hereafter referred to as the motor）Rotational speed of
2015-03-14 Reading quantity 2894
introduction： 1．The processing of the ring: 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。]The processing of the inner and outer rings varies according to the raw material or blank form,The process before turning can be divided into the following three types,The whole processing process is： Bar or pipe material（better The material needs to be forged and annealed、normalizing）----
2015-03-14 Reading quantity 1431
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