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introduction： Standard number Standard Chinese name Standard English name GB4706.71-2003
2014-12-19 Reading quantity 2987
introduction： Act 1 plastic material one﹑Molecular structure of plastics﹕The main component of plastic is resin﹐Resin has natural resin and synthetic tree adipoid。 two﹑Composition of plastic﹕ 1. Resin﹕The main function is to bond the other components of the plastic﹐And determine the type of plastic(hot Plasticity or thermosetting)And main performance
2014-12-19 Reading quantity 3010
introduction： inTIMKENbearing[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 early stages of operation，Most greases are fast(Less than a minute)They were forced out of the raceway，And the accumulation in the protection grease in the following bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is in the process of mechanical transmission
2014-12-19 Reading quantity 1648
introduction： Longgong new structure roller from2004Since listing，With its superior performance、Reliable quality，High cost performance，It has been praised and favored by the majority of users，Machine sales and market share have gradually increased。As time goes on，The time comes for the maintenance and overhaul of the whole machine，At present, some special service centers do not understand the structure of Longgong vibration wheel，Cause problems in maintenance and overhaul can not be dealt with。Now the steel wheel walking 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，
2014-12-19 Reading quantity 1620
introduction： Raceway sound is due to bearings[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。]When rotating, the rolling element rolls in the raceway and generates a smooth and continuous noise，It attracts attention only when its sound pressure level or tone is extremely high。Actually, the noise of the raceway
2014-12-19 Reading quantity 1566
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。]There are many reasons for failure，All factors affecting the design and manufacturing process will be related to bearings[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
2014-12-19 Reading quantity 1545
introduction： Rotary support 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 common quality defects of parts after heat treatment are：Quenching microstructure overheating、underheating、Quenching crack、Insufficient hardness、Heat treatment modification、Surface decarburization、Soft spot。 1. superheating Slave bearing[bearing:bearing（“Bearing”，Japanese person“
2014-12-19 Reading quantity 1555
introduction：GCr6peculiarity：It has good cold deformation plasticity and sharability，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。]Higher wear resistance than carbon tool steel，But high sensitivity to white formation
2014-12-19 Reading quantity 1667
introduction：The crystal amber color and the very fine, creamy fine foam are essential characteristics of the appearance quality of beer，There are only a few beers on the world market today，Almost all of them are filtered to ensure a certain transparency and stability with gloss。In recent years，As the range of beer circulation continues to expand，The diversification of consumption patterns and the improvement of consumers demand for freshness and biochemical content，The market also has more and more stringent requirements for the turbidity stability and flavor stability of beer。It can be said that，The importance of filtration process for beer quality assurance is increasing。At present, the main stream of beer filtration is diatomaceous earth filtration
2014-12-19 Reading quantity 2976
introduction：Deep groove ball 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。]There are three things about burns：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，Bring down
2014-12-19 Reading quantity 1639
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