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introduction：The focused high-speed electrons are used to excite the characteristics of the component elements on the specimen surfaceXray,A physical test of a material for qualitative or quantitative analysis of microcomponents,Also known as electron probeXX-ray microanalysis。The principle of electron probe analysis is：Kinetic energy10～30A fine focused beam of kiloelectron volts bombards the specimen surface，Knocks out the inner electrons of the atoms that make up the surface elements，ionize，At this point, the outer electrons quickly fill the gap and release energy，Thus producing characteristicsXray。 Using a wavelength dispersion spectrometer（Or energy dispersion spectrometer）And detection counting system,Measurement characteristicsXWavelength of ray（Or energy）Sum strength，Be enough
2015-03-23 Reading quantity 2784
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。]The working performance depends largely on its material properties。FAGUsually a low alloy is used、High purity solid hardened chromium steel is used as the material for making bearing rings and rolling elements。For bearings subjected to high impact loads and alternating bending stresses，carburizing。 Recent years
2015-03-23 Reading quantity 1432
introduction：1 principle Under the action of metal catalyst，The ammonia sprayed into the flue gasNOXRevert back toN2andH2O。 2 Reaction equation 4NO + 4NH3 + O2 → 4N2 + 6H2O NO + NO2 + 2NH3 → 2N2 + 3H2O The reaction is performed without a catalyst，Only in980°CThe left and right side of the temperature range；But with the catalyst，The reaction temperature can be greatly reduced，about300°C～400°
2015-03-23 Reading quantity 2842
introduction：For the lubrication of the reducer from installation to scrap life plays a pivotal role，Improper selection of oil or poor lubrication will cause gear damage，Shorten the service life of equipment，Equipment operating costs increase accordingly，Exclusion of other factors，Proper and reasonable lubrication can extend the life of the equipment1～5times，Therefore, we must carefully consider the selection of oil and oil，Ensure equipment economy、、Environmental protection operation
2015-03-23 Reading quantity 2870
introduction： CODE：00499 Device name：Three roll plate rolling machine Type specification：Plate thickness≥35mm Unit of measurement：Taiwan Main parameter content World leader
2015-03-23 Reading quantity 2777
introduction：1、Impact 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。]Material factor of life Early failure forms of rolling bearings，Mainly ruptured、Plastic deformation、wear、Corrosion and fatigue，Under normal conditions it is mainly contact fatigue。Failure of bearing parts in addition to service conditions，Mainly by the hardness of steel、intensity、toughness、wear-resistant
2015-03-23 Reading quantity 1524
introduction：Preserve and reproduce with the highest accuracy possible with modern science and technology“meter”outfit。Study and establish the standard of length measurement，It is one of the main contents of length measurement technology。A standard for measuring length is a standard for harmonizing units of length between countries and within a country，It is also the basis for ensuring the accuracy of quantity value and realizing interchangeability。“meter”It is the basic unit of length measurement。 “meter”Transition of definition18Century ago，Each country in the world has its own unit of length,Very different。18End of Century,Proposed by the French Academy of Sciences, commissioned by the French National Assembly“Metric system”concept。It will pass the bar
2015-03-23 Reading quantity 2812
introduction：Needle roller 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 type of： Except as listed in the catalog，Bearings for general engineering，Such as：Open stamped outer ring needle roller bearing（1）、Closed stamped outer ring needle roller bearings（2）、Needle roller bearing with inner ring（3）And needle roller bearings without inner ring（4）SKFVarious types are also available
2015-03-23 Reading quantity 1509
introduction：The application of CNC machine tools is more and more extensive，There are also many articles related to CNC machine tool technology，But how to use CNC machine tools correctly、There are not many discussions on how to maintain it effectively。This article is written to answer these questions，Although some of the points in the article are a little general，But its comprehensive.、Very practical。 Development of science and technology，High precision is proposed for mechanical products、High complexity requirements，And product replacement is accelerating，This not only puts forward the accuracy and efficiency requirements of the machine tool equipment，And it also put forward the requirements of versatility and flexibility。CNC machine tools are aimed at this
2015-03-23 Reading quantity 2785
introduction：1.The reducer refers to an independent closed transmission device between the prime mover and the working machine。In addition，The reducer is also a power transmission mechanism，Speed converters using gears，Slow down the rotation of the motor to the desired number of revolutions，And get a larger torque mechanism。Reduce speed and increase output torque，Torque output ratio By motor output multiplied by deceleration ratio，But be careful not to exceed the rated torque of the reducer。 2.The function of the reducer is to slow down and increase the torque，This function is entirely dependent on gears and gears The meshing between them is complete，Easier to understand。 two、Types and applications of commonly used reducers
2015-03-23 Reading quantity 2889
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