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introduction： [Abstract]The extrusion composite forming process of shell event is introduced，The material utilization ratio of extrusion processing and machining is analyzed，The extrusion field of shell parts is designed and calculated，And design the mold structure。 [keyword]：Shell part；Combined extrusion die；Material utilization rate The shell parts of military products are shown in the figure1As indicated，The dimensional accuracy of the outer diameter of the part isO.12mm，High surface roughness requirements，The parts are made of high strength duralumin2A12。Its composition is：copper3.9％-4.8％；magnesium1.2％-1.6％；manganeseO.3％-
2015-02-25 Reading quantity 2774
introduction：TIMKENbearing[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 matters that must be paid attention to when applying force during installation and disassembly are，The resultant force of the applied force passes through the axis of the bearing as far as possible，This requires the point of application to be uniform, symmetrical and stable，Force is applied through a sphere or parallel to an axis。The size of the force should be smooth and even，Not to be impacted，This requires either oil pressure or energy use
2015-02-25 Reading quantity 1430
introduction：The surface of the die can be polished by grinding，The degree of smoothness is related to the following factors：①.Quality of tool steel②.Heat treatment process③.Polishing technology and process equipment It is generally considered that polishing process equipment is the most important influencing factor。Proper polishing technology and process equipment with good quality tool steel and correct heat treatment process can obtain satisfactory finish。conversely，Even the use of the best quality steel will not achieve a highly mirrored effect。 one.Quality of tool steel Uneven surface hardness or differences in characteristics of steel often produce polishing difficulties。Various inclusions and pores in steel are not conducive
2015-02-24 Reading quantity 1532
introduction： Lecture oneCDRSsummarize CDRSThe software isPTCThe companys surface production of professional software，It makes it easy to generate professional-grade surfaces，It is used in the process of surface makingPRO/EDifferent software，Almost no correlation，This feature is very important in the production of curved surfaces，It can greatly improve the efficiency of designers，In the following study，I will tell you more about it。 CDRSThe software has high requirements for the configuration of the machine，Specifically as follows： Internal memory：128Mabove，I myself suggest yes256M，Within reach512Mbest。 Hard disk space：400
2015-02-24 Reading quantity 2844
introduction： CODE：00524 Device name：Sheet metal bending machine Type specification：Nominal force≥1000kN Unit of measurement：Taiwan
2015-02-24 Reading quantity 2781
introduction： Combination 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。]Part of the dynamic surface material falls off like a fish scale，This phenomenon is called exhaustion flaking. During the operation of the dynamic bearing，Bear a certain load，Even static loads，But for balls and raceways，The stress is cyclic，The material will undergo dynamic fatigue thus
2015-02-24 Reading quantity 1428
introduction： Outer spherical 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 installation is not reasonable，Will affect the outer sphereTIMKENBearing accuracy、Life and performance。therefore，Please fully study the installation of bearings，Please install the bearing according to the operating standards including the following items。 one、Clean the bearing and phase
2015-02-24 Reading quantity 1534
introduction：Roller 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 following phenomena will occur when the temperature rises The temperature rise of roller bearings is more obvious in the following two situations： 1、Theres an alarm bell ringing 2、Send outINAFault signal of rising bearing temperature。 3、Water wheel mechanical failure light plate bright，Indicates roller bearing temperature
2015-02-24 Reading quantity 1430
introduction：When choosing a fit，The first thing to consider is the type of load that the ring bears。There are usually three types of load bearing rings: 1 Fixed load The resultant radial load acting on the ring，Borne by a local area of the ferrule raceway，And pass to shaft orNSKbearing[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)concretion
2015-02-24 Reading quantity 1439
introduction：How to introduce the most advanced technologies and processes into our daily production，These technologies and processes are put into practical use，localization，Make it a tool we can use in the development of new products in production，It is a topic worthy of discussion in the printing industry。Now on the combination of hot stamping process and label，If there is any impropriety，Readers are unstinting in their criticism。 First of all，Hot stamping process is divided into cold stamping and hot stamping。The principle of cold pressing is mainly the use of pressure and special glue to combine the electrochemical aluminum with the substrate，The whole process requires no heating，There is also no need for hot stamping and pad technology，At the same time, the narrow-band rotary machine is relatively expensive and complex to operate
2015-02-24 Reading quantity 2858
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