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introduction：Development trend at home and abroad Several large bearings in Japan[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。]corporation(Fine workmanship、Japan)It represents the development direction of bearing sealing technology。They have an earlier history in developing the direction of sealing technology and bearing device technology，In-depth research，At present, the sealing technology is more mature。From a single sealed lip to
2015-04-15 Reading quantity 1457
introduction：The total capacity of Zhongjia no sewage treatment plant is30Ten thousand tons/day，It was built in three phases，The capacity of the first phase of the project is10Ten thousand tons/day。According to the inlet and outlet water quality requirements of Zhongshan Environmental Protection Bureau，The plant adopts advanced oxidation ditch technology to meet the requirements of removing organic matter and dephosphorization。The main processing process of the system is divided into pretreatment、Oxidation ditch、Final sedimentation tank and sludge dewatering four parts。Adopt based onPLC5Controller Low-cost remote communication and control system；Ensure the quality of sewage treatment process，Make the effluent water quality meet the specified standards；Advanced in applicationPIDcalculate
2015-04-15 Reading quantity 2789
introduction：There are dozens of bearings on cars[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。]Is rolling bearing，Large and small include almost all common bearing types，The collision and damage of rolling bearings are also more common。Because rolling bearings are generally installed inside the mechanism，So its not easy to check directly，You can only make a rough judgment based on the fault symptom，And then dismantle it.
2015-04-15 Reading quantity 1554
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，switchIKObearing[IKObearing:IKONeedle roller bearing with its special internal structure to achieve the mechanical design of small、Light weight。rail
2015-04-15 Reading quantity 1553
introduction： Whether the outer packing is clear：In general，The factory brands have their own specialized designers for external packaging design，And arrange the production of factories with satisfactory production conditions，Therefore, the packaging is very clear from lines to color blocks-，In no uncertain terms。 Whether the steel seal is clear：inFAGImported bearing[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。]It will have a brand on it
2015-04-15 Reading quantity 1447
introduction：1、Imported bearing[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。]Preparation for Because the bearings are treated with rust and packed，Therefore, do not open the package until the installation is ready。 In addition，The anti-rust oil coated on the bearing has good lubrication performance，For general purpose bearings or bearings filled with grease，Can be used directly without cleaning。But for instrument bearings or bearings used for high-speed rotation，Apply clean cleaning oil will prevent
2015-04-15 Reading quantity 1452
introduction：summarize：In foreign metal working fluids，Cutting fluid has always occupied a large proportion，Generally speaking50％around。The classification of metal working fluids is often divided into cutting fluids and forming fluids according to metal working methods，Or according to the chemical composition of the oil is divided into non-water soluble(oil-based)Liquid and water solubility(water-base)Liquid two classes。At present, most of our country also use this classification。ISOin1986Annual passIS06743/7，oil-base、Water-based processing fluid is divided into MHand MATwo broad categories，And according to the chemical composition of each class、Application classification8Sum of classes9class，A total of17class，The standard includes many varieties of metal working fluids at present
2015-04-15 Reading quantity 2896
introduction： With the domestic car ownership continues to rise，The demand for the use of auto parts and automotive supplies is also increasing，However, large and small parts and supplies stores in Guangzhou are numerous and complex，The goods are of mixed quality，Many fake and shoddy products are mixed among them，Cause the owners loss，Serious cases can even lead to casualties。In order to let the owner have a certain understanding of the characteristics of the accessories and supplies of the various brands，It will be featured in the Owners section from this week“Smart Consumer”column，Introduce various types to car owner friends、The main auto brand accessories identification way。Hope to accompany the development of the column，
2015-04-15 Reading quantity 1729
introduction： How to protect the mechanical parts of electric forklift trucks There are many factors affecting the wear of forklift mechanical parts，In addition to design and manufacturing reasons，General and use、Maintenance is related to each maintenance，Although wear forms are many，But there are patterns，This law is also called wear characteristics。 Vehicle wear characteristics can be divided into three stages：One is a new car.（Or a major car repair）Run-in wear stage，In this case, the surface of the new parts has a certain flatness，The mating surface wears quickly，It is generally called run-in wear，The second is the natural wear stage
2015-04-15 Reading quantity 2900
introduction： Abstract：T=0It is a contact type stipulated in international standardsCPUCartoon communication protocol。Combined development practice，Divide the agreement into four levels，Mainly fromCPUThe Angle of the card starts，Binding terminal，The characteristics and implementation process of the protocol are described systematically from two aspects，coalesceT=0The advantages and disadvantages of the protocol are analyzed，At present, the development results have been applied in practice。 keyword：Card operating system（COS）Terminal application layer（TAL）Terminal transport layer（TTL）Application protocol data unit（APDU）Transport protocol data unit（TPDU） ICCards are being used more and more widely
2015-04-15 Reading quantity 2910
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