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introduction：Make use of XThe interaction between rays and matter to analyze the structure of matter、A physical test of the organization and composition of a material。 XRay is GermanW.C.Roentgento 1895discovered。It is a ray invisible to the naked eye，But it can make light-sensitive materials light and fluorescent materials light up；Has a strong ability to penetrate matter；It ionizes the gas；Like visible light，It travels in a straight line，No deflection occurs in the electromagnetic field。Because the nature was not well understood at the time,Hence the nameXray。Later generations honored its discoverer，Also known as Roentgen rays。 1912years，GermanM.vonlowe
2015-03-13 Reading quantity 2785
introduction：Industrial lubricants are a technology-intensive product，Technology and service must take the lead。In the sale of industrial lubricants，Lubrication management is a very important subject。Only do a good job of lubricating oil management，To use lubricating oil correctly，In order to play the technical properties of lubricating oil，Ensure normal operation of equipment，Extend equipment life，Save lubricating oil，Save energy，Improve economic and social benefits。 Here we talk about the lubrication management of industrial lubricants from several aspects。 one、Transportation and storage of lubricating oil （one）Bulk oil products 1.Containers for holding and storing lubricating oil must be dry
2015-03-13 Reading quantity 1443
introduction：TIMKENbearing[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。]Type refers to the air cooled radiator fan usedTIMKENBearing profile。In mechanical engineering，TIMKENThere are many types of bearings，But there are only so many kinds of radiator products used：Use sliding friction sleevesTIMKENBearings and use rollers
2015-03-13 Reading quantity 1446
introduction：⒈ aim： Standardize the working method of the up and down pattern，Improve mold efficiency，Prevent accidents。 ⒉ Radius： Suitable for upper and lower die operation in injection molding department。 ⒊ Duty： The upper and lower mold technician performs mold drop according to this operation guide、Each link of the mold operation。 ⒋ Drop mode operation procedure： 4.1Before stopping the mold，First pull the mold to the machine position，And get the tools you need、Materials。 4.2 Check whether the crane screws are loose，Whether the ring is strong。 4.3 Turn off the water，resale5~10bei，Make the mold hot，Avoid rust，The use of frozen water mold should be paid more attention。
2015-03-13 Reading quantity 2894
introduction：The ratio of the centrifugal force on the suspension or emulsion in the centrifugal drum to its gravity in the centrifugal force field，Thats the ratio of centrifugal acceleration to gravitational acceleration。Separation factor toFexpression： [0180-01]ShizhongRIs the radius of the position of the separated material in the drum(meter)；Is the rotational angular velocity of the drum(radian／seconds);Acceleration of gravity(9.81meter/seconds()；Is the rotating drum speed（turn/points）;For the quality of the material inside the drum（kilogram）。Separation factor is the main index to measure the performance of centrifugal separator。Fbigger，The greater the force of centrifugal separation，The separation performance of the centrifugal separator is also increasing
2015-03-13 Reading quantity 2792
introduction：1、Abide by《General operating rules for casting equipment》Relevant provisions。 2、Check that the handling handles are all in the stationary position，Whether the travel switch and the iron touch position are correct。If not in a stationary position，It must be placed in a stationary position；If the position is incorrect，Must be corrected。 3、Check whether the abrasion of the scraper is serious，Is the location appropriate?。In case of severe wear，Should be replaced；In discomfort，Subject to adjustment。 4、Start with a running test，Then run empty3-5minutes，And check： a、Whether the movement of the transmission system and balance wheel is balanced； b、Whether the opening and closing of the sand door are flexible；Just make sure everythings okay，Be within easy reach
2015-03-13 Reading quantity 2787
introduction：1. The CNC machine should be inspected comprehensively and carefully before starting，The content includes the operation panel、Guideway surface、dog、tailstock、Tool rest、cutter，It can be operated only after it is recognized。 2. After the CNC machine is powered on，Check each switch、Buttons and keys are normal、nimble、The machine has no abnormal phenomenon。 3. After program input，Code should be checked carefully、address、Numerical value、sign、The decimal point is carefully checked。 4. Correctly measure and calculate the workpiece coordinate system。The results were checked 5. Input job coordinate system，Coordinate coordinate。Coordinate value、sign、The decimal point is carried out carefully
2015-03-13 Reading quantity 1555
introduction：Macro instruction andRParameter programming，It is a key technology of numerical control programming technology。Make use ofSIEMENS810DsystematicRParameters and macros“@”It can solve the generality problem of CNC program for bevel gear parts。adoptRParameters and macros，It not only makes the numerical control program universal、flexibility，The procedure is simplified to the maximum extent，It also greatly improves programming efficiency and processing reliability，It provides reference for NC programming of some special and similar parts。 one、introduction In the actual production of the factory，There are often parts with similar shapes that need to be machined。Like us
2015-03-13 Reading quantity 2803
introduction： (1)Principle of NC machining When we use machine tools to process parts，It is usually necessary to control the various movements of the machine tool，One is to control the sequence of actions，The second is to control the displacement of each moving part of the machine tool。When using ordinary machine tools，This kind of driving、Pull up、feed、commutation、Operations such as spindle speed change and switching cutting fluid are directly controlled by manual control。When using automatic machine tools and copying machine tools，The above operation and motion parameters are through the designed CAM、Devices such as molds and stoppers are controlled in the form of analog quantities，They can process more complex parts，And have a certain flexibility and pass
2015-03-13 Reading quantity 1472
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。]The surface of the raceway shall be polished without corrugation。When surface roughness>0.2μmwhen，The bearing can not give full play to its bearing capacity。 The bearing clearance of the directly supported bearing depends on the diameter tolerance of the shaft and the hole。。 And direct branch
2015-03-13 Reading quantity 1601
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