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introduction：Foil 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。] A sliding bearing that uses an elastic foil to suspend the shaft by hydrodynamic or static pressure。Foil bearing Yes20century50A new type of bearing developed in the era。Use tape as elastic foil﹐The foil with hydrostatic bearing is suspended by hydrostatic pressure﹐The pressure bearing is driven by the weighing foil of the hydrodynamic pressure suspension shaft(
2015-04-07 Reading quantity 2784
introduction：Milling machining in general，All belong to rate processing。 In the middle of face milling，The tool used has different shapes and types according to its range of application。The cutting edge of the knife，Due to friction in the cutting process，Rapid heating，It cools down dramatically while idling，Very strict requirements。therefore，The cutting tool is required to have impact resistance、Wear resistance and heat resistance。 To soften the impact on the tip of the knife，And easy outflow of iron filings，The shape of the tip must be fully studied。There are two options for selecting the front Angle of the face milling blade：One is to be close to the workpiece90The shoulder shape of the machined surface is cut，One is a flat cutting shape that is beneficial to tool wear。Adopt flat
2015-04-07 Reading quantity 2771
introduction：1、In photometric analysis，The principle of selecting color developing agent： The sensitivity of the developing agent is high；The selectivity of color developing agent is better；The resulting colored compounds are more stable，Color should be stable，And it has a definite composition ratio；Solubility of the developing agent；Stability and price, etc。 2、How to calibrate a photometer with a praseodymium nd filter： Special protactinium neodymium filter（Pre-calibrated on a higher precision instrument），When correcting the wavelength of the instrument，Usually use573nmand586nmBimodal spectral line correction。 3、Correction of spectral wavelengths of rare metal salts： with1.31Gram of chlorine
2015-04-07 Reading quantity 2845
introduction：(1)Rolling bearings with low noise requirements[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。] Standards in productionSKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFGroup headquarters
2015-04-07 Reading quantity 1529
introduction：one、Definition of plastic Plastic is mainly composed of resin，Molded into a certain shape under a certain temperature and pressure，And at room temperature can maintain a given shape of the polymer organic material。 Resin refers to a range of conversion or melting that usually occurs when heated，It has fluidity when it is transformed by external force，Organic polymers that are solid or semi-solid or liquid at room temperature，It is the most basic plastic，And the most important ingredient。Broadly speaking，Any polymer used in the plastics industry as a basic material for plastics can be called a resin。 two、Classification of plastics There is no exact classification of plastics，The general classification is as follows： 1．Plastic press material
2015-04-07 Reading quantity 2769
introduction：Bearings for foreign machinery industry[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。]Heat treatment method(Up.)Abstract：Diamond introduces plasma arc welding materials、Fit out、Process and defect form Hong Kong BTU developed a new direct pressure injection molding machine high-end mold lack of industrial mother how can be heavy tool reading knowledge digital design and parallel engineering in motorcycle research
2015-04-07 Reading quantity 1441
introduction：There are many factors that lead to crawling of silver guide rail in machine tool,The following are some elimination measures according to different factors: poor lubrication or floating unloading does not work，Resulting in increased friction resistance。
2015-04-07 Reading quantity 36142
introduction：JS1000The sealing structure of the original shaft end of the double horizontal shaft concrete mixer is complicated，Be easy to damage，Difficult to maintain，After improvement，Overcome the above shortcomings，Improved rear axle end seal structure is simple，Easy to disassemble and assemble，Good durability，Low cost，Remarkable economic benefits have been obtained。 After the concrete mixing station is completed，Purchased two from Shandong Province construction machinery factoryHZS－50M mixing plant，The station adopts the double horizontal shaft forced mixer as the supporting main machine，It has the advantages of good mixing quality。Danjing5Years of production use，It is found that the sealing structure of the shaft end of the double horizontal shaft is complicated，The use effect is not ideal。Per production
2015-04-07 Reading quantity 1543
introduction：1、sensationallyIKObearing[IKObearing:IKONeedle roller bearing with its special internal structure to achieve the mechanical design of small、Light weight。Guideway bearings are based on the high quality given by needle roller bearings，Precision machining with unique mechanical equipment，Evaluate the quality of the latest machines，Products always maintain high performance and high quality level。]Quality According to sales experience, many customers say that as long as the surface of the linear bearing is bright, the quality is good，This is wrong。IKObearing[IKObearing:IKONeedle roller bearing with its special internal structure to achieve the mechanical design of small、Light weight。Guideway bearing
2015-04-07 Reading quantity 1457
introduction：rollFAGbearing[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。]Its a mass production of mechanical parts，And the manufacturing accuracy requirements are very strict，There is a high degree of technical specialization，So for the vast majority of those that are easily availableFAGbearing[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。]varietal，It should be more cost-effective to buy than to repair，Only in the following cases，Only considerFAGbearing[F
2015-04-07 Reading quantity 1533
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