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introduction： FAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]The common quality defects of parts after heat treatment are：Quenching microstructure overheating、underheating、Quenching crack、Insufficient hardness、Heat treatment modification、Surface decarburization、Soft spot。 1. superheating fromFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]The rough edges of the parts can be seen
2015-02-10 Reading quantity 1555
introduction： Grease in 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。]There are many advantages in use，But there are also the following disadvantages： （1） Grease is semi-solid，Does not flow at room temperature，Therefore, it is difficult to grease or change grease on friction parts，The cleaning of bearings is not very convenient。 （2） Mixed moisture、dirt、
2015-02-10 Reading quantity 1596
introduction：1.Machining points of shaft diameter The shaft diameter is generally cylindrical，The requirements for surface roughness are relatively high，So the surface of the shaft diameter must be finely ground，Work in grinding（Shaft diameter）The rotation direction should be consistent with the rotation direction of the shaft diameter when it is actually working。If the surface roughness of the shaft diameter after fine grinding does not meet the requirements，Grinding or polishing is required。The material of the shaft diameter should have sufficient hardness after heat treatment，For grinding and polishing。 2.Processing points of bearing hole The bearing material is usually soft，The inner cylinder is not suitable for grinding，Boring can be used、Diamond boring、Scraping or grinding process。 At grinding
2015-02-10 Reading quantity 1470
introduction：In order to ensureSKFbearing[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]It can operate normally and for a long time，Bearings need to be maintained and overhauled regularly。 normal，If deep groove ball bearings are used correctly，Can be used until fatigue life is reached。But there will be accidental premature damage
2015-02-10 Reading quantity 1549
introduction：The seamless welding technology shows excellent performance in the mold welding，The precision of the parts is improved、Visibility of finish and appearance，Shorten the mold manufacturing cycle。 With the increasing demand for high-quality parts in the global market，People are more and more interested in seamless welding technology which can improve the accuracy of parts。recently，Makino Corporation of Japan（Makino）Our alliance partners have successfully developed a new seamless welding technology，It can effectively eliminate the weld between the molds、Junction line and parting line。The key to this process is the use of advanced technology and vertical machining center，You can produce molds in a whole new way
2015-02-10 Reading quantity 2848
introduction：During the design of the new spindle，SelectINAbearing[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。]before，Consider spindle performance parameters first，Roughly identify the most critical performance，Then enter further probe。（include：Spindle speed，Spindle accuracy，Spindle rigidity，Spindle life，Spindle heating，Spindle reliability） The spindle parameters are determined
2015-02-10 Reading quantity 1766
introduction：1General requirement 1.1 Valve specifications and categories，Shall comply with the requirements of the pipeline design document。 1.2 The valve model should indicate the national standard number requirements based on。If enterprise standard，The relevant description of the model should be indicated。 1.3 Valve operating pressure，demand≥The working pressure of the pipe，Without affecting the price，The working pressure that the valve can withstand should be greater than the actual working pressure of the pipeline；Either side of the valve closed should be able to withstand1.1Double valve working pressure value，Without leakage；With the valve open，The valve body should be able to withstand twice the valve working pressure
2015-02-10 Reading quantity 2951
introduction：VThe E sealing ring is a lip sealing ring，It is one of the earliest and most used molding fillers。It is mainly used for reciprocating motion，To seal a piston or piston rod。Rarely used in rotation or as static seals。 VThe V-sealing ring has the following characteristics： 1）Good sealing performance； 2）A certain eccentric load is allowed、Sum eccentric motion； 3）It can be used in multiple circles，And by adjusting the compression force to obtain the maximum sealing effect； 4）Resistant to shock and vibration pressures； 5）When the packing cannot be loaded axially，It can be used with incisions，Just stagger the cuts when installing，Does not affect the sealing effect。
2015-02-10 Reading quantity 1475
introduction：zhuanzi zidongxian Rotor automatic line rotor type automatic line An automatic production line in which the workpiece is continuously transferred while being processed or other processes are completed，Also known as rotary type automatic line。Rotor automatic line mainly consists of working rotor、The transmission rotor and the control device are composed。The working rotor is the process equipment to complete the process change，It is generally fixed to a working disc on the central drive shaft，The working disc is provided with a working head evenly distributed along the circumference，Can complete the same process（figure1 [Working rotor of the same process]）Or different jobs
2015-02-10 Reading quantity 2825
introduction：Generally speaking，Use rolling bearings correctly[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。]，Fatigue life can be achieved。But if an unexpected early injury occurs，It can no longer be used。Different from fatigue life，This early damage，Its called a malfunction or an accident。Many causes are installation、Use、Poor lubrication，A foreign object or intrusions from the outside
2015-02-10 Reading quantity 1575
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