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introduction： Hub bearings for cars[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。]In the past, the most common was the use of single row tapered roller or ball bearings in pairs[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 on the shaft
2014-12-17 Reading quantity 1485
introduction： Apply： For liquid food（Dairy products、Fruit juice）Aseptic packaging，Packaging material use3－5layerPECo-extruded film，Room temperature，Product shelf life at room temperature30-90day。Can save the cost of cold storage。 Working principle： Aseptic packaging machine andUHTThe sterilizer is directly connected。 The packaging material is conveyed to the hydrogen peroxide tank through the film spreading device，The packaging material was sterilized by soaking in hydrogen peroxide。Through the scraper、The hydrogen peroxide remaining on the packaging material is removed by UV irradiation。 The packing material enters the filling room to complete the bag forming，filling，And sealing and other work。 Filling during production
2014-12-17 Reading quantity 2827
introduction：How to maintain the electromagnetic brake 1、Check the length of armature stroke regularly。Because during the operation of the brake，Due to abrasion of the split surface，The travel length of the armature will increase。When the armature stroke length does not reach the normal value，Adjustments must be made，To restore the minimum clearance between the brake surface and the turntable。If the armature stroke length increases above the normal value，The suction may be greatly reduced。 2、If a worn brake surface is replaced，The minimum clearance between the brake surface and the turntable should be properly adjusted。 3、Always check the tightness of the bolts，especially
2014-12-17 Reading quantity 2865
introduction：The diameter of the diverter is based on the molding volume of the plastic part、Wall thickness and shape of plastic parts、The process properties of the plastic parts used and the length of the diverter are determined。For wall thickness less than3mm、The quality is in...200The following plastic parts，The diameter of the diverter can be determined by the following empirical formula： D=0.2654WL Shizhong D The diameter of the diverter W The amount of plastic that flows through the diverter L Diverter length For plastics with large viscosity，According to the formula aboveDTake the place of1.2~1.25Coefficient of
2014-12-17 Reading quantity 2799
introduction： Energy pairing axis﹑disc﹑Ring and other types of workpiece for a variety of processes of the horizontal lathe。Ordinary lathes are often used to process the inner and outer rotating surfaces of workpieces﹑Face and various internal and external threads﹐Use appropriate tools and accessories﹐Drilling is also possible﹑reaming﹑Tapping and knurling, etc。General lathe(See picture Structure of ordinary lathe)The process range is wide﹐The adjustment range of machine tool spindle speed and feed is large﹐The process preparation and adjustment work before processing is less﹔But the degree of automation is low﹐The machining accuracy of the workpiece depends to a certain extent on the workers operating water
2014-12-17 Reading quantity 2819
introduction： pick to：High temperature and high pressure bolt materials commonly used in thermal power plants25Cr2Mo1VA brittle fracture accident is often caused by relaxation failure of steel，From the damage mechanics point of view，Combined with nondestructive testing theory，A method for evaluating the relaxation damage failure of cylinder connection bolts of high temperature and high pressure in thermal power plants by using ultrasonic and acoustic emission characteristics is proposed，The measured damage parameters are quantified。 keyword：Ultrasonic wave；Quantitative evaluation；Thermal power plant；bolt；Relaxation failure 1 Conventional analysis method of bolt relaxation damage failure and view of damage mechanics Due to heat-resistant steel bolts，Under operating conditions，Long-term high tolerance
2014-12-17 Reading quantity 2821
introduction： Our factory is a thermal power plant，Various industrial pumps、Centrifugal fans and other equipment driven by motor，It is widely used in the production process，And it runs continuously for a long time。How well the equipment works，The amount of energy consumption is directly related to the safety and economic indicators of the whole plant production。“All Souls Overlord”The advent of anti-wear and energy-saving lubricating oil additives，To improve lubrication performance，Reducing mechanical wear and saving energy offer broad prospects。But in the use of units how to determine its use effect，It becomes vital，It is related to whether it can be promoted and used。I plant rolling bearings in motors[bearing:bearing（“Bea
2014-12-17 Reading quantity 1477
introduction：The problem with many indexable bit bits is that the cutting edges of the two blades overlap to produce the correct cutting diameter，So even though the drill has two chute slots，The function of the blade is to form a single-edged but asymmetrical cutting edge。The design is inherently unbalanced。therefore，Indexable bits must slow down the feed rate and reduce the feed rate when entering the cut，Forcing users to make trade-offs between economics and productivity。 Another problem with the unbalanced cutting process is the bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is used to fix and reduce the load friction system during mechanical transmission
2014-12-17 Reading quantity 1513
introduction：NSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）Be established in1916years，It is the first manufacturer to design and produce bearings in Japan。NSKThe function of the bearing fit is to makeNSKThe stationary ring and rotating ring of the bearing are respectively the stationary part of the installation part(Usually a bearing seat)And rotating part(Usually an axis)Solidify together，Thus, the basic tasks of transferring the load in the rotating state and defining the position of the moving system relative to the stationary system are realized。]The definition of internal clearance is one or the otherNSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）into
2014-12-17 Reading quantity 1493
introduction：1.Frictional compatibility The property of preventing adhesion and boundary lubrication when the bearing diameter is in direct contact with the bearing bush。The material factors that affect the friction compatibility of friction pairs are： （1）The degree of difficulty in forming alloys in metallurgy。 （2）Affinity of material to lubricant。 （3）Friction factor of the auxiliary material in the non-lubricated state。 （4）Microstructure of materials。 （5）Thermal conductivity of the material。 （6）The size of the surface energy of the material and the characteristics of the oxide film。 2.embedability The material allows foreign hard particles in the lubricant to clamp in and prevent scratching or scratches
2014-12-17 Reading quantity 1478
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