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introduction： usual，The shaft is made of two 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。]Supported in radial and axial directions，now，The bearing on one side is called the fixed side bearing，It bears both radial and axial loads，It acts as the relative axial displacement between the fixed shaft and the bearing box。Lets call the other side the free side，Radial load only，
2015-02-23 Reading quantity 1495
introduction：An analog display instrument with recording。The measuring element connected to the electronic automatic balancing instrument is used（Thermocouple and thermal resistance, etc）Different and divided into electronic automatic balance potentiometer and electronic automatic balance bridge two。Electronic automatic balancing instrument due to the use of automatic compensation measurement method and the use of electronic amplifier，High precision and sensitivity。After attaching electric contact and pneumatic electric regulating device，It can be used for alarm and automatic control。 Electronic self-balancing potentiometer in its measuring system(figure1[Electronic automatic balance potentiometer schematic diagram])There is an adjustable standard electricity
2015-02-23 Reading quantity 2806
introduction：(1)Temperature conditions at the time of measurement The ambient temperature at the time of measurement is specified as20℃，amongFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]、Gauge block、The temperature of standard parts and measuring instruments must be the same，The above method of placing them on the same metal plate is the fastest way to achieve the necessary temperature balance，Otherwise it can take hours or even days to achieve such a balance。 To get the correct measurement，Foreign countries rely on the mechanization of measurement to avoid human contact with these objects，
2015-02-23 Reading quantity 1466
introduction：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。]In the grinding process，The working surface is ground by a high-speed rotating wheel，Therefore, if the equipment is not operated and adjusted according to the operation instructions during grinding，There will be various defects on the working surface of the bearing，It affects the overall quality of the bearing。Bearing in precision grinding，On account of
2015-02-23 Reading quantity 1551
introduction：Precision cold rolling technology is a kind of cold working forming method which extrudes and then plastically deforms circular rotary parts at normal temperature。Precision cold rolling can make the size of the workpiece、The shape is as close as possible to the theoretical value of the finished piece。Its advantage is that： 1.It can significantly improve material utilization and processing efficiency。Compared with the traditional turning processing method，Precision cold rolling can improve the material saving rate10％～15％above，Thus realizing the bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission
2015-02-23 Reading quantity 1555
introduction：Heat treatment of the cleaned castings﹑plastic﹑Anti-rust treatment and roughing process。Casting post-treatment is the last process of casting production。 Heat treatment To improve or change the original structure of the casting﹐Relieving internal stress﹐Guarantee casting performance﹐Prevent casting deformation and damage﹐After casting cleaning﹐Some require heat treatment。Heat treatment of castings is generally quenched﹑anneal﹑normalizing﹑As-cast conditioning﹑Artificial aging(See aging treatment)﹑Stress relief﹑Softening and graphitization treatment。For example, high manganese steel castings require high wear resistance and sufficient toughness﹐Its internal organization should be austenite。For this purpose﹐The casting needs to be quenched
2015-02-23 Reading quantity 2779
introduction：Because the pump is very sensitive to the state of the equipment，Therefore, the pump is also an indicator that reflects the state of the equipment，Examples include damage to slip ring seals and plain 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。]Unlubricated operation，Cavitation causes damage to the working wheel and the casing。 In order to improve the usability of the equipment，You have to know the device status
2015-02-23 Reading quantity 2884
introduction：According to the performance requirements of the workpiece，According to the tempering temperature，Tempering can be divided into the following types： （one）Low temperature tempering（150－250The degree of） The microstructure obtained by low temperature tempering is tempered martensite。Its purpose is to maintain the high hardness and high wear resistance of the hardened steel under the premise，Reduce its quenching internal stress and brittleness，Avoid cracking or premature damage during use。It is mainly used for a variety of high-carbon cutting tools，Measuring tool，Cold die，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
2015-02-23 Reading quantity 1490
introduction： Cryogenic equipment for the storage and transportation of liquefied natural gas﹑Liquid oxygen﹑Liquid nitrogen﹑Containers for liquid hydrogen and liquid helium, etc。For long-term storage of liquefied gas﹐Effective insulation must be used。The storage tank is usually of double construction。Inner cylinder(Also known as the inner bladder)Storage of liquefied gas﹐Inner tube and outer tube(Outer gallbladder)An insulating layer is formed between them﹐To reduce by conduction﹑convection﹑Heat radiated into the inner cylinder。 The main performance indicator of deep cryogenic liquefied gas storage tank is evaporation rate。The evaporation rate is the volume of liquefied gas and the rated capacity of cryogenic liquid stored and transported in the storage tank due to the introduction of external heat in the unit time
2015-02-23 Reading quantity 2878
introduction：Abstract：In order to improve the surface treatment quality of large volume integrated capacitor housing，Reduce labor intensity，Improve the working environment，Where space is limited，The relevant experiments of environmental protection brush coating phosphating powder were carried out，The film layer with ideal effect of removing oil and rust was obtained，The film has good compatibility with insulating oil，Good corrosion resistance under natural ventilation，The adhesion with the paint film reaches one level。 keyword：Environmentally friendly brush coated phosphating capacitor housing applications1introduction The housing of the integrated capacitor is large，Due to the limited working space，The existing phosphating production line can not meet its phosphating needs，Square sanded with hand sandpaper
2015-02-23 Reading quantity 2784
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