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introduction： Strong metallic sound 1、Abnormal load：Select appropriate assembly clearance and preload 2、Poor assembly：Improve the machining accuracy of the shaft，Improved installation method 3、underlubricant：Supplement or use suitable lubricant Regular tone 1、Foreign bodies cause channel rust、impression、scar：Cleaning related parts，Use clean grease 2、The channel is peeling off：Fatigue wear，Change bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is fixed and reduced during mechanical transmission
2015-03-16 Reading quantity 1554
introduction：Flexographic printing has become the fastest growing printing industry today、One of the most promising printing processes，And close to every year5The rate of rapid increase。green、Environmental protection、Pollution-free is becoming the mainstream of the development of printing industry，Low investment、High efficiency、Features a wide range of applications，Flexo printing has become the preferred printing solution for various packaging products。 Flexo development overview Flexographic printing is a type of relief printing，It was originally called aniline printing，Originate from20century20The United States at the beginning of the decade，Because of its use of aniline dye ink toxic，Therefore, it has not been developed。thereafter，Ink manufacturers began to use acceptable
2015-03-16 Reading quantity 2893
introduction： First of all，The structure design is reasonable and advanced at the same time，There will be longer deep groove ball 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。]Life span。Bearings are generally manufactured by forging、Heat treatment、turning、Grinding and assembly and other processing processes。The rationality of each processing technology、
2015-03-15 Reading quantity 1546
introduction：1introduction The performance of the electrical drive control system of the paper machine is to determine whether a paper machine can be efficient or not、The premise of high quality production，So for a normal production of paper machine，To ensure its continuous rate、High quality production，The maintenance of the transmission system is particularly important，This paper lists several common faults in the maintenance of paper machine drive system，The relevant analysis and solutions are given。 2The judgment and analysis of the whole machine fault As an electrical technician，First of all, you must have a full understanding of the devices you manage，Have a very clear understanding of working principles and design ideas
2015-03-15 Reading quantity 2879
introduction：Fit the weldment tightly﹐Kept at a certain temperature and pressure for a certain period of time﹐A welding process in which atoms between contact surfaces are diffused to form a joint。Temperature is the main factor affecting the diffusion welding process and joint quality﹑stress﹑Diffusion time and surface roughness。The higher the welding temperature﹐The faster atoms spread out。The welding temperature is generally the melting point of the material0.5～0.8times。Depending on the type of material and the quality requirements for the joint﹐Diffusion welding is available in vacuum﹑Do it under protective gas or solvent﹐Among them, vacuum diffusion welding is the most widely used。To speed up the welding process﹑Reduce the requirements for welding surface roughness or prevent joint leakage
2015-03-15 Reading quantity 2876
introduction：Diversification of new linear rolling guide pairs 1.High speed、Development of high acceleration and deceleration rolling linear guide pair CNC machine tools in recent years、Robot、The feed speed of various machinery such as electronic mechanical devices has developed rapidly，Have improved2～3times，The rolling linear guide pair used in these machines has higher high-speed requirements。Rolling linear guide pair achieves high speed、Basic requirements for high acceleration and deceleration：①No contact between rolling elements；②Improved lubrication performance，And has long-term maintenance characteristics；③The whole
2015-03-15 Reading quantity 1714
introduction：The planetary reducer is made up of worm wheels、worm、Cast steel casing、Plane pressure 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。]，Taper bearing and oil seal composition，Widely used in industrial manufacturing，Its performance can be comparable to other military grade reducer products，But with industrial-grade prices，It is mainly used for rotary mechanism of tower crane。Ones course of action
2015-03-15 Reading quantity 2874
introduction：The main transmission structure of planetary reducer is:Planet gear,Sun wheel,Outer gear ring. Planetary reducer for structural reasons,Single-stage deceleration minimum3,The maximum generally does not exceed10,Common deceleration ratio is:3.4.5.6.8.10,Reducer series generally do not exceed3,But there are parts of large reduction than custom reducers have4Stage reduction. Relative to other reducers,The planetary reducer has high rigidity,High precision(A single stage can do it1Within points),High transmission efficiency(Single-stage in97%-98%),high torque/Volume ratio,Lifelong maintenance free and other features. Because of these characteristics,Planetary reducer more
2015-03-15 Reading quantity 2875
introduction：After the controlled object is determined，What kind of control system to choose becomes an important issue。It is mainly considered according to the project size and investment budget，Based on digital technologyDCSThe system and early analog instruments comprise the control system，From the implementation of the project，Little difference in nature，The main consideration is the project size and investment budget，butDCSCompared with analog instruments，Its more complicated，Higher technical requirements，Let me talk about itDCSSeveral problems in system selection。Theoretically speaking，DCSCan be used with different process，Its universal，however，DCSThe manufacturer specialises with a certain collar
2015-03-15 Reading quantity 2764
introduction：Heat treatment characteristics The heat treatment of spring steel depends on the processing and forming method of the spring，Generally can be divided into hot forming springs and cold forming springs two categories： 1）Thermoforming spring against cross-section dimensions＞10mmAll kinds of large and complex springs are thermoformed（Like hot rolling、Hot rolling），Like a car、tractor、Plate springs and coil springs for trains。Its simple processing route is：Flat steel or round steel cutting→ Heat bending or winding→ Tempering at medium temperature → Surface shot peening，The use state organization is tempered trostenite。Shot peening can strengthen the surface and improve the surface quality of the spring，Significantly improve fatigue performance。 2）Cold-formed bomb
2015-03-15 Reading quantity 1531
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