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introduction：one、SF-2Boundary lubricationTIMKENImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。] Acid polyformaldehyde，It has high wear resistance，TIMKENImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]Have an appearance of
2015-01-06 Reading quantity 1460
introduction：INAbearing[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。]Allow slight running noise during work，If the noise is too loud or there is abnormal noise or banging，It indicates that the oil-free bearing is faulty。 The reasons for noise generated by rolling bearings are more complex，One is inside the bearing、Outer ring with surface wear。Due to this wear and tear，Break the shaft
2015-01-06 Reading quantity 1563
introduction： Welding method using chemical reaction heat as heat source。When welding﹐The ends of the two workpieces to be welded are fixed in the mold in advance﹐Then mix aluminum powder with iron oxide powder(Called thermite)Heat in a crucible﹐A reductive exothermic reaction occurs﹐Become a liquid metal(iron)Fusion slag(Mainly forAl2O3)﹐Injection mold。The liquid metal flows into the joint void﹐Weld metal﹐The slag floats to the surface。To adjust the melt temperature and weld metal chemistry﹐Appropriate additives and alloys are often added to thermite。figure Thermite welding of rail Aluminum for the rail
2015-01-06 Reading quantity 2810
introduction： Rolling 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。]Failures are often due to a variety of factors，All design and manufacturing process factors influence andIKOBearing failure，Their analysis is not easy to determine。Under normal circumstances，In general，You can consider and analyze factors and internal factors。
2015-01-06 Reading quantity 1564
introduction：SF - 2Boundary lubricationTIMKENbearing[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。]add：Acid polymers must be assembled with formaldehyde，High wear resistance，TIMKENStorage pits on bearing surfaces are arranged regularly，grease，Especially for high load and low speed rotating motion，Rocking motion，Often set a negative，
2015-01-05 Reading quantity 1558
introduction：Typical application range Automobile industry（Structural devices such as reflector boxes，Electrical components such as headlights, mirrors, etc）， Electrical component（Motor housing、Electrical coupling、relay、Switch、Microwave oven internals）。Industrial application（Pump housing、Manual equipment）。 Injection molding conditions Drying treatment：Drying before processing is a must，becausePETThe hygroscopicity is strong。The recommended dry condition is120~165C，4Hours of dry treatment。The humidity should be less than0.02%。Melting temperature：For non-fill types：265~280C；For glass filling
2015-01-05 Reading quantity 2802
introduction：（1）Annealing cooling system：Steel annealing time，Generally used with the furnace cooling to600～550℃Then the oven is air-cooled。 （2）Normalizing cooling method：When steel normalizes，It is generally cooled in air。 （3）Quench cooling system：Steel hardening，Steel is in the most unstable range of supercooled austenite（650～550℃）The cooling rate should be greater than the critical cooling rate，Thus, the workpiece is not transformed into pearlescent structure；While...MsThe cooling rate near the point should be as low as possible，Thus reducing the quenching internal stress，Reduce workpiece deformation and cracking。therefore，At quenching，In addition to the selection of appropriate quenching cooling agent
2015-01-05 Reading quantity 1553
introduction：Stress concentration A class of problems in elasticity﹐A local increase in stress in an object﹐It usually occurs where the shape of an object changes rapidly﹐Like a notch﹑opening﹑Grooves and rigid restraints。Stress concentration can cause fatigue cracks in objects﹐It can also cause static load fracture of parts made of brittle materials。Where the stress is concentrated﹐Maximum stress(Peak stress)It is related to the geometry of the object and the loading method。The locally increased stress decreases rapidly with the increase of distance from the peak stress point。Because the peak stress often exceeds the yield limit(See mechanical properties of materials)It causes a redistribution of stress﹐the
2015-01-05 Reading quantity 2812
introduction： solidworksThe profile lines are defined and definedautocadalike,It usedautocadSection line definition method,withautocadBe common.therefore,Section lines can be defined. method:editSolidWorkslangchinese-simplifiedsldwks.prn Open the file in your notebook,Add the desired lines.Such as ;; Based on AutoCAD Ver.13
2015-01-05 Reading quantity 2908
introduction：IKOThe acceptance inspection of bearings can usually be divided into three categories： 1.Routine inspection－IKORoutine general inspection of bearings upon arrival。 2.Routine inspection—rightIKODimensional accuracy of bearings in relation to assembly、Rotation accuracy、IKObearing[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。]Clearance andIKOResidual magnetic strength of bearings
2015-01-05 Reading quantity 1467
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