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introduction： Make use of XRay orγThe difference in intensity attenuation of rays as they pass through different parts of the subject﹐A nondestructive testing method for detecting defects in an object。 principle The thickness or density of each part of the object to be measured varies depending on the presence of defects。whenXRay orγWhen the ray penetrates the subject﹐The extent to which the rays are absorbed will also vary。If the original intensity of the ray isI 0﹐The absorption coefficient through line is The material to the distance after﹐The strength decays toI ﹐Qiguan
2015-04-02 Reading quantity 2890
introduction： induction machine Induction machine horseshoe magnet A horseshoe magnet magnetic field Magnetic field eddy current vortex right-hand rule Right-hand rule left-hand rule Left hand rule slip Slip rate induction motor Induction motor rotating magnetic field Rotating magnetic field
2015-04-02 Reading quantity 2884
introduction：At the Crystal gift counter，It is common to see some glass with some patterns carved inside、Crystal handicraft，Enjoy the splendor of these、Crystal clear products，A lot of people wonder，How are these patterns carved into it？Today, I will introduce laser engraving products and technology，Uncover the mystery of these crystal artifacts…… Laser engraving principle These glasses、The crystal crafts are made using a computer-controlled laser engraving mechanism。In fact，Most of the artifacts commonly seen are not real crystals，Its artificial crystal.。“laser”Its about artificial crystals（Also known as“Crystal glass”）Into the
2015-04-02 Reading quantity 2873
introduction： To improve the transmission stiffness，Reasonable support structure and correct installation of ball screw are very important. High stiffness thrust bearings are generally used[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。]Support structure，To improve the axial bearing capacity of ball screw。 （a）immobilization—freestyle One end is fitted with thrust bearing，Its carrying energy
2015-04-02 Reading quantity 1556
introduction： Before the reducer is put into operation，Fill the reducer with the recommended type and value of grease。The reducer is lubricated with lubricating oil。For vertical mounted reducer，Whereas lubricating oil may not guarantee the top 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。]Reliable lubrication，Therefore, additional lubrication measures are used。&nbs
2015-04-02 Reading quantity 2777
introduction： Lanzhou Motor Co., LTD(Lanzhou in Gansu Province 790050) Yang Siming [Abstract]The forming process characteristics of the sealing parts are analyzed，The structural design of the composite stamping die for this kind of parts is introduced。 keyword capping Composite die blanking stretch 1 Part analysis figure1Shown is the cover of the air filter，Large production batch，The material is...08F，Material thickness0.35mm，The outer circle diameter is one80mm，Tensile height7mm，After forming, the mouth should be free of flash edges。The part is a typical shallow cover part，The original processing technology of the cap is blanking--stretch--rolling，Principal orifice
2015-04-02 Reading quantity 2885
introduction： Ring breakage is a problemINAbearing[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。]One of the quality problems，The defect fracture is the main form of ring fracture，The main reason is the raw material itself or improper production operation，The device cannot run properly。Present combination
2015-04-02 Reading quantity 1548
introduction： Low noise 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 and adjustment can also imitate the grouping method of long-life bearings，The size of fit interference is more consistent，Bearing clearance is also more consistent，And we want the fit interference to be a small value within the possible range，To ensure that the bearing raceway deformation is small，Thus the rolling body through caused
2015-04-02 Reading quantity 1556
introduction： one、introduction SiemensSINUMERIK 840DSystem as a high-end numerical control system，Instruction enrichment，Powerful function，It is widely used in all kinds of machining centers。Macros of the system（@CODE）The programming approach is complementary to the standard programming instruction set，And greatly expanded the system programming instructions，At the same time, it also greatly facilitates the use of users。Users can completely according to their own needs，To compile simplicity、practical、Optimized and targeted programs，To achieve various functions。 Multi-axis addition of product parts
2015-04-02 Reading quantity 2783
introduction： Checking the condition of machines in operation and preparing a thorough inspection plan has become more and more serious.In addition toSKFbearing[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]Be the center of attention,Because its the most important spin of all machines
2015-04-02 Reading quantity 1443
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