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introduction： Aluminum alloy for its good mechanical properties(High specific strength、Specific stiffness)And excellent casting performance，It is widely used in industry，Its a car、shipbuilding、Important structural materials for aerospace and other manufacturing industries。 In actual production，There are many defects in aluminum alloy castings，vallation、Shrinkage porosity、Casting defects such as porosity and slag inclusion。Porosity defect is a common defect in sand casting，Reduce the tissue density of the casting，Degradation of mechanical properties。It is an important problem that affects the quality of aluminum castings。Porosity defects often occur in thick parts of large aluminum castings，And small and medium-sized aluminum castings of the riser root and processing end。
2014-12-28 Reading quantity 2888
introduction：Put onIKOBearing load，According to the load can be divided into light load、Conventional load、Heavy load，According to the temporal change of load quantity, it can be divided into static load、Variable load、Impact load。In addition，According to the direction of load is divided into rotating load（Also called circumferential load），Static load（Also called point load）Or changing direction load。 Rotating load，Static load or changing direction load，Not imposed onIKOThe nature of the bearing load itself，But for a deep groove ball bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is fixed in the process of mechanical transmission and reduces the friction coefficient of load
2014-12-28 Reading quantity 1594
introduction：FAGImported 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。]The fit clearance with the shaft must be suitable，Can makeFAGImported 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。]The service life is longer，amongFAGImported bearing[Imported bearing
2014-12-28 Reading quantity 1588
introduction： 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。]Check after installation，Required 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
2014-12-28 Reading quantity 1629
introduction：KOYOExamples of bearing damage and its causes and countermeasures，Please use as inferred 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。]Information on the cause of injury should be used for injury status:KOYOWhen the bearing is rotated under load，Inner ring、The raceway surface or rolling surface of the outer ring shows a fishscale peeling phenomenon due to rolling fatigue。The original Due to the:load
2014-12-28 Reading quantity 1615
introduction： MAX-5It is a special programming software for the impeller，UGIt is widely used in ChinaCAD/CAMSystem。MAX-5The universality of post-processing is poor，whileUGIt has flexible post-processing function，The author of this article neatly combines the two，Not only realize the advantages of the two complementary，It also opens up ideas for solving the practical problems encountered in production successfully。 one、introduction For the straight surface impeller5Shaft milling machining，Familiar people are clear impeller special programming softwareMAX-5There are obvious advantages。The software has many ways to define the machining trajectory
2014-12-28 Reading quantity 2965
introduction：Automobile 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。]Installation of、Use and maintain general knowledge summaries：FANUCCNCConnection and adjustment between system and machine tool Selection of electrode wire in wire cutting process Application range and market analysis of inverter in ChinaD80Constant volume blower operating rules forging technologySINUMER
2014-12-28 Reading quantity 1606
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。]Use a variety of mechanical equipment，Timken 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，Bring down
2014-12-28 Reading quantity 1518
introduction： 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。]temperature，Generally can be based on 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 are opposite each other on the shaft
2014-12-28 Reading quantity 1575
introduction：When the solder paste is placed in a heated environment，Solder paste reflux is divided into five stages， First of all，The solvent used to achieve the desired viscosity and screen performance begins to evaporate，The temperature must rise slowly(About per second3°C)，To limit boiling and splashing，Prevent the formation of small tin beads，In addition，Some components are more sensitive to internal stress，If the external temperature of the component rises too fast，Will cause fracture。 Flux is active，Chemical cleaning operation commenced，The same cleaning action occurs for both water-soluble and no-wash types of flux，Its just a slightly different temperature。Remove metal oxides and certain contaminants from the metal and solder that will be combined
2014-12-28 Reading quantity 2923
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