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introduction：Rolling 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。]Precision component，Appropriate care is required in its use，Not only changed the use of high-performance linear bearings[Linear bearing:Metal linear bearing is a linear motion system produced at a low cost，For use with infinite stroke and cylindrical shaft。The linear bearing is fitted with a quenched linear drive shaft
2014-12-27 Reading quantity 1691
introduction：Lets give a brief introduction 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。]roll，The size and quality of the rolling sound should be checked by using a sounder to press the outer ring needle roller bearing in operation[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is used to fix and reduce load friction during mechanical transmission
2014-12-27 Reading quantity 1530
introduction： rollKOYOEarly failure forms of bearings，Mainly ruptured、Plastic deformation、wear、Corrosion and fatigue，Under normal conditions it is mainly contact fatigue。KOYOFailure of bearing parts in addition to service conditions，Mainly by the hardness of steel、intensity、toughness、Abrasion resistance、Corrosion resistance and internal stress state constraints。The main internal factors that affect these performance and status are as follows。 1.1Martensite in hardened steel When the original structure of high carbon chromium steel is granular pearlite，In the quenching low temperature tempering state，Carbon content of quenched martensite，Significantly affects the force of the steel
2014-12-27 Reading quantity 1603
introduction： Density table of commonly used metal materials Density table of commonly used metal materials，Including black、Density of non-ferrous materials and their alloys。 Material name density g/centimetre3 Material name density g/centimetre3 Grey cast iron 6.6~7.4 Stainless steel 1Crl8NillNb、Cr23Ni18 7.9 White cast iron 7.4~7.7 2Cr13Ni4Mn9 8.5 Malleable cast iron 7.2~7.4 3Cr13Ni7Si2 8.0
2014-12-27 Reading quantity 2863
introduction：one、Materials When people shop for locks，There is a common concern that locks are not durable or that the surface will rust or oxidize after a short time。The problem is related to the materials used and the surface treatment。 From a durability standpoint，The best material is stainless steel，Especially as a surface material，The more you use it, the brighter it gets。Its strength is good、Strong corrosion resistance、Color invariance。But there are many kinds of stainless steel，It can be divided into ferrite and austenite。Ferritic stainless steel is magnetic，Commonly known as stainless iron，Long time，Bad conditions can also rust，Only austenitic stainless steel does not rust，The identification is simple，It can be identified by a test with a magnet。
2014-12-27 Reading quantity 2930
introduction：Performance evaluation of electric forklift trucks 1、The rate of；Rate doesnt just mean high speed(run、Up、Falling speed)，It also means that the time required for the operator to complete a work cycle is short，And can maintain this efficiency throughout the working time。Many factors contribute to efficiency gains： Speed up and down，Such as travelling speed、Lifting and landing speed, etc;Application of ergonomic design，Reduce the number of operation actions;Accuracy of operation;Application of ergonomic design，Minimize fatigue;Good view; 2、low
2014-12-27 Reading quantity 2930
introduction：There has been a misconception about automation，The idea is that automated processes or capabilities must be added to any machine。Robots and other functional components in automated production lines move or stop workpieces according to the desired movements of workers，But is this the only way to automate？If the goal is to reduce dependence on human work and care，Then anything that meets that goal can be called automation。Look at it this way，“automate” It may take the form of a program change to replace a new piece of program-controlled equipment，Or it becomes a form of concept。
2014-12-27 Reading quantity 2849
introduction： Hybrid ceramic 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。]Its probably less common，And hybrid ceramic 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
2014-12-27 Reading quantity 1602
introduction： Environmental pollution caused by harmful substances in automobile exhaust。Among the harmful substances is carbon monoxide (CO)﹑hydrocarbon(hydrocarbon)﹑aldehyde(CHO)﹑oxynitride(NOx)﹑ozone(O3)﹑Sulfur dioxide﹑Lead and acid compounds, etc﹐One of the most harmfulCO﹑NOx ﹑Hydrocarbons and lead compounds。In large cities where cars are concentrated﹐In the air50％Left and right pollutants come from the exhaust of cars﹐The harmful substances in the exhaust often reach the extent that they are harmful to the human body。 70Early era﹐Some car companies
2014-12-27 Reading quantity 2878
introduction：Since the beginning of the year，Many breweries have been adversely affected by rising raw material prices。Because many companies are not able to increase the price of products because of rising raw material prices，Many beer companies are overwhelmed，We have to find ways to reduce costs in production。 Many beer companies are starting to think in terms of raw materials，Barley is the main raw material for beer production、Hops and hop products、yeast、Water and auxiliary materials。The ingredients include rice、Corn and corn starch、Wheat、Sugar and starch syrups, barley syrups, etc。 Auxiliary materials should be added appropriately in saccharification，It can serve the following functions：
2014-12-27 Reading quantity 2952
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