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introduction：INAbearing[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 right use，Can have a long life。If damage occurs too early，Probably because of a selection error，Improper use，Or poor lubrication。therefore，In installationINABearing time，We need to keep track of machine types，Installation site，Conditions of use and their surrounding fit
2015-03-06 Reading quantity 1550
introduction： Measuring when a material is subjected to a constant load at a certain temperature﹐A test of the mechanical properties of a material that does not cause a maximum stress to break within a specified duration。The high temperature lasting strength is an important basis for the design and selection of high temperature components。Durable strength is generally used expression﹐Where is the test temperature(℃)﹐For the specified duration of the test(Hour (s))。Such as＝300megaliu/meter2﹐That is, the test temperature of the material is 700℃﹑The duration of the test is1000The lasting strength of the hour is3
2015-03-06 Reading quantity 2906
introduction：usual，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。]The temperature begins to rise slowly as the bearing runs，1-2It reached a stable state after hours。The normal temperature of the bearing depends on the heat capacity of the machine，Heat release，Speed and load vary。If lubricated、Fit for installation，theTIMKENThe bearing temperature will rise rapidly
2015-03-06 Reading quantity 1565
introduction： 1. Ball-and-fork universal joint According to the different shape of the steel ball raceway, the ball-fork universal joint can be divided into two forms: circular groove and straight groove。 Spherical fork universal joint with circular groove raceway type(figure4—6a)Consists of two universal-joint forks、It consists of four transmission steel balls and one centering steel ball。The center line of the circular groove on the two ball forks isO1andO2Circles with equal radii for their centers，O1andO2To the center of the universal jointOequidistant。When the universal-joint two axes are centered around the center of the ballOWhen turning at any Angle，The center of the ball is always at the intersection of the two circles in the center of the raceway，Thus, the output shaft and the input shaft rotate at the same speed。This ball fork
2015-03-06 Reading quantity 1445
introduction：dianjie moxiao Electrolytic grinding electrochemical grinding A special machining that combines electrolysis with mechanical grinding，Also known as electrochemical grinding,English abbreviationECG。Electrolytic grinding yes20century50It was invented by Americans in the early 1900s。figure[Schematic diagram of electrolytic grinding]The principle of electrolytic grinding。The workpiece is connected to the positive electrode of the DC power supply as an anode；The conductive grinding wheel is connected to the negative electrode of the DC power supply as the cathode。When grinding，Maintain a certain grinding pressure between the two，The non-conductive abrasive protruding from the surface of the grinding wheel makes the workpiece table
2015-03-06 Reading quantity 2788
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。]Working hours，Rolling element and inner ring（Or ring）The load is not constant，It changes over and over again with the operation of the cylindrical roller bearing。This load is an alternating load；Also due to the rolling element and inner ring（Or ring）The contact area is very small，Make contact stress
2015-03-06 Reading quantity 1548
introduction：Tinplate negative for shortTMBP(Tin Mill Black Plate)，It is a kind of ultra-thin cold rolled mild steel sheet，The main purpose is to supply tin plating used in the canning industry、TFSRaw sheet of iron。Tin density 5.77 Specification standard：Standard for production of tinplateCNS G3097、JIS G3303、ASTM 624/626 Tinned negative： specification
2015-03-06 Reading quantity 2802
introduction：Oil filmKOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，Often without a cage，Instead, fill the inner and outer raceways with rolling elements。And most small and medium-sizedKOYORolling bearings are equipped with retainers。 inKOYOBearing in the processing process，The outer ring of the bearing、Inner ring、How do the roller and cage fit together。]The sealing structure should be improved as much as possible，Prevent flooding。But the oil film near the waterKOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，Often without a cage，Its filled with rolls between the inner and outer raceways
2015-03-06 Reading quantity 1535
introduction： slideNSKbearing[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。]Base on...
2015-03-06 Reading quantity 1443
introduction： one. Purpose and application Normalizing is the heating of steel or various metal mechanical parts to a critical pointAc3orAccmAbove the proper temperature，Let cool in the air after holding for a certain amount of time，The heat treatment process of pearlite matrix was obtained。 two. Process specification （1）Normalizing heating temperature and hardness value of commonly used steel grades。 （2）Calculation of normalizing holding time，Refer to quenching process regulations。 （3）The cooling of normalizing workpiece is generally air cooling，Large normalizing can also be cooled by fan、Spray cooling，In order to obtain
2015-03-06 Reading quantity 1443
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