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introduction：IKOCauses of bearing corrosion and prevention methodsIKOBearing corrosion is caused by various internal and external factors，In summary, there are mainly： 1、Metal surface finish(Oxygen concentration difference battery corrosion)。 2、Chemical composition and structure of metal material itself。 3、Composition of solution in contact with metal surface andpHvalue； 4、Ambient temperature and humidity。 5、Various environmental media in contact with metal surfaces。 6、In addition, human sweat is also triggering bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is fixed and reduced in the mechanical transmission process
2014-12-12 Reading quantity 1582
introduction：IKOBearings show strong regularity in their use，And repeatability is very good。Normal high-quality imported bearings[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。](Rolling bearing)At the beginning of use，Vibration and noise are relatively small，But the spectrum is a little scattered，The amplitude is small，Probably due to some defect in the manufacturing process，surface-hair
2014-12-12 Reading quantity 1526
introduction： The main advantages of electric forklifts 1、Easy to program，Control is greatly enhanced；With the frequency conversion speed regulation technology has made breakthrough development，It can control the operation of AC motor in real time，The control ability of AC motor is greatly enhanced，The speed regulation performance is the same as that of DC motor。Ac drive adopts speed torque control，Increased sensitivity of control，It can improve the operation efficiency of forklift trucks;Release the braking function with the accelerator pedal，It can smoothly transition from reversing to reversing during the forward process，The stability and reliability of forklift are improved。meanwhile，adoptCANbus，Makes system integration easier，cell
2014-12-11 Reading quantity 3003
introduction： The study of the laws of motor motion。Possible driving condition of the car﹐As a line﹑curve﹑Up and down the slope﹑Constant velocity or acceleration and deceleration motion are the content of mechanics research。But there are tires in the structure﹑Suspension system and other elastic parts﹐More freedom of movement﹐However, the mechanism of adhesion and friction between tire and ground has not been fully investigated﹐So the subject still has a semi-empirical character。Some countries are called“Vehicle performance prediction”﹐Some countries and some Chinese textbooks say“Automobile theory”。These two concepts﹐Including vehicle fuel economy﹑
2014-12-11 Reading quantity 2934
introduction：To shorten the nitriding cycle，The nitriding process is not limited by the steel grade，proximally、In the past 20 years, two new nitriding processes, soft nitriding and ion nitriding, have been developed on the basis of the original nitriding process Soft nitriding is essentially a low temperature carbonitriding based on nitriding，The nitrogen atoms of the steel permeate at the same time，And a few carbon atoms seep in，The treatment results are compared with the above general gas nitrogen，The hardness of the penetration layer is low，Less brittleness，It is therefore called soft nitriding。 1.Soft nitriding method，Soft nitriding methods are divided into two categories: gas soft nitriding and liquid soft nitriding。At present, gas soft nitriding is the most widely used in domestic production。Gas soft nitriding is in the presence of
2014-12-11 Reading quantity 1522
introduction：At present, there are several commonly used polishing methods： 1.1 Mechanical polishing Mechanical polishing is by cutting、The plastic deformation of the surface of the material removes the convex part after being polished to obtain a smooth surface polishing method，Generally, whitestone strips are used、Wool wheel、sandpaper，Mainly manual operation，Special parts such as rotary surfaces，Auxiliary tools such as turntables can be used，Surface quality The method of super finishing polishing can be used for high requirements。Super finishing is the use of special grinding tools，In a polishing solution containing abrasives，Press firmly on the surface of the workpiece to be machined，Perform high-speed rotating motion。Using this technology can be achievedRa0.008μmSurface roughness of，
2014-12-11 Reading quantity 1510
introduction： The basic principles of electric forklift disassembly machinery 1、Disassembly should be prepared for assembly。Non-interchangeable parts should be marked or placed in pairs when disassembling，In order to ensure its accuracy during assembly。Such as the stem of the multi-way reversing valve and each valve body，They are not interchangeable，Should be placed in pairs should not be mistaken。Disassembled parts should be classified and stored，In order to find，Prevent loss、Damaged and mistaken。 2、Before disassembly, the structure and working principle of each part of the machine must be made clear,Do not disassemble blindly,Otherwise it may cause part damage or its
2014-12-11 Reading quantity 2910
introduction： Welding method using plasma arc as heat source(See picture Plasma arc welding(punch-type) )。The gas is dissociated by arc heating﹐Compressed at high speeds through water-cooled nozzles﹐Increase energy density and dissociation degree﹐Plasma arc formation。Its stability﹑The heat output and temperature are higher than the average arc﹐Therefore, it has a large penetration force and welding speed。The gas forming the plasma arc and its surrounding protective gas are usually argon。According to the material properties of various workpieces﹐Helium or argon-helium are also used﹑Argon-hydrogen gas mixture。Plasma arcs work in two ways。One is...
2014-12-11 Reading quantity 2891
introduction： Four-stroke motorcycle engines are lubricated in the manner in which lubricating oil is supplied，Can be divided into pressure lubrication and splash lubrication two kinds。 Splash lubrication was common in early engines，Use the crank to stir the oil，Throw oil droplets into the engine to lubricate each part。To increase the amount of oil spilled，Generally, the crank is designed to be long。 Splash lubrication has the advantage of simple structure，It is conducive to the lightweight of the engine。But the lubrication effect is often poor，Especially for each bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is fixed in the process of mechanical transmission and reduces the friction coefficient of load
2014-12-11 Reading quantity 1543
introduction： 1 The new product is not optional Replacement cylinder liner pistons must be checked for standard cylinder liner and piston size group codes，Cylinder liner and piston must be installed with the same size group code，To ensure standard fit clearance。 2 Incorrect cylinder clearance measurement When measuring, the gap in the direction of the major axis of the ellipse shall prevail，That is to measure the clearance of the piston skirt perpendicular to the direction of the piston pin hole。This is easier to measure、accuracy。 3 Open fire heating piston The open flame directly heats the piston，Piston parts are uneven in thickness，Thermal expansion
2014-12-11 Reading quantity 1550
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