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introduction： figure1 Ceramic workpiece figure2 Drawing of blank parts one、Forming of ceramic material workpieces There are three kinds of ceramic materials，(1)Oxide ceramicsAl2O3；(2)Non-oxide ceramics such asSiN2、SiC；(3)Composite ceramicsAl2O3+SiN2。The blanks of ceramic materials can be manufactured by powder metallurgy，The ceramic powder is mixed and pressed to form，Its shape is only a blank close to the finished product
2015-01-06 Reading quantity 2849
introduction：In order to identify the disassemblednskTapered roller 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。]Can use，Check the bearing after washing and cleaning。Check the raceway surface、Rolling surface、State of mating surface、Wear condition of the stand、The increase of bearing clearance and the damage of falling regardless of dimensional accuracy，abnormal。Non-detached small ball bearing
2015-01-06 Reading quantity 1558
introduction： NSKbearing[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。]During operation，Failure is common，So dont be surprised。Failure to judge and treat is critical。today，We explain common problems and means of bearing removal。 1.NSKBearing temperature Active mechanism
2015-01-06 Reading quantity 1492
introduction：1.Control range The heating furnace adopts basic automatic control，It includes two parts: first order control of mechanical equipment and first combustion control of thermal instrument。One for each of the two control systemsPLCTo finish。Computer equippedCRTreveal、Man-machine interface and print alarm function。 The control range of the basic automatic control system is to align the pusher from the heating furnace、Electrical control equipment and instrument control equipment for the whole heating furnace system from the charging roller table in the furnace to the discharging roller table in the furnace（Includes electric drive，Low-voltage power supply and distribution equipment，Basic automation hardware equipment and supporting software，Operating equipment，Measuring instrument）。
2015-01-06 Reading quantity 1496
introduction：Internal factors mainly refer to structural design、Manufacturing process and material quality decisionsTIMKENImported 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。]Three factors of quality。 First of all，The structure design is reasonable and advanced at the same time，There will be longerTIMKENImported bearing[Inlet shaft
2015-01-06 Reading quantity 1472
introduction： one：KOYOBearing appearance inspection： 1、Various cracks，Such as raw material cracks，Forging crack、Heat treatment crack and grinding crack，These cracks are laterKOYOBearing during operation，Will become a source of stress concentration and rapidly expand，Bring aboutKOYOBearing rupture，rightKOYObearing[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，with
2015-01-06 Reading quantity 1464
introduction： Economic globalization、Informatization and Chinas accessionWTOIt provides opportunities for the development of Chinas foundry industry。Small and medium-sized enterprises have a special important position in the development of foundry industry，It is necessary to explore its development。 1.Development status 1．1General situation The number of foundry enterprises in China exceeds12000home，Where the annual output is less than10000tOf the total number of enterprises99。9，Annual production less than5000tThe number of enterprises accounted for87。8，See table1[1]。The average annual output of Chinas foundry enterprises is1162t/years，That is well below the average for developed countries
2015-01-06 Reading quantity 2828
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。]Precision parts，Therefore, it requires considerable caution when using，The change is the use of high-performanceFAGImported 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，ikoshaft
2015-01-06 Reading quantity 1567
introduction：A length measuring tool for measuring roundness using the rotating axis method。The roundness meter is divided into two types: sensor rotary type and table rotary type（See picture[Roundness meter appearance diagram]）。Measuring time,The tested part is concentrically installed with the precision shafting,Precision shafting with inductive length sensor or table for precise circular motion。When the measured circle has a roundness error，Will cause the length sensor probe displacement。The length sensor converts the displacement into electricity，amplified、filtering、The roundness error is indicated by the display instrument after processing the program such as calculation，It is also commonly recorded with a circular recorder or a cathode ray tube (CRT)Show the outline of the circle being measured
2015-01-06 Reading quantity 2814
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-operation inspection is very important，Can not be ignored，Its main check bearing rolling sound、Vibration、temperature、The state of lubrication and so on。Lets start with a brief introductionIKOThe rolling sound of bearings，The size and quality of the rolling sound should be checked by using a sounder on the moving automobile shaft
2015-01-06 Reading quantity 1546
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