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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 2959
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 2955
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 3000
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 2905
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 1564
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 1607
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 1591
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 1575
introduction：1、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。]Preparation for Because the bearings are treated with rust and packed，Therefore, do not open the package until the installation is ready。 On the other
2014-12-17 Reading quantity 1585
introduction：The development of reducer in our country has been recent40History of the year，It is widely used in various fields of national economy and national defense industry。The product has been from the initial single cycloidal reducer，Developed to now five categories of products，Cycloidal reducer、Continuously variable transmission、Gear reducer、Worm gear reducer、Electric roller。According to preliminary statistics，Reducer consumption is relatively large industry mainly：Electric machinery、Metallurgical machinery、Environmental protection machinery、Electronic appliance、Road building machinery、Chemical machinery、Food machinery、Light industrial machinery、Mining machinery、Conveying machinery、Construction machinery、Building machinery、Cement machinery、Rubber machinery、Hydraulic machinery、Petroleum machinery，this
2014-12-17 Reading quantity 3043
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