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introduction： After a long summary of technical personnel，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。]The sound has the following27Species cause，There may be many more we havent encountered，Well make it up later。 1. The bearing is mixed with impurities such as sand or carbon particles，Act as an abrasive
2015-06-02 Reading quantity 1562
introduction：Checking the condition of machines in operation and preparing a thorough inspection plan has become more and more serious.In addition toTIMKENbearing[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。]Be the center of attention,Because its the most important rotating part of any machine.Condition monitoring is an important part of preventive maintenance.Early detection of bearing damage to avoid due to
2015-06-02 Reading quantity 1557
introduction：Excitation test(Stimulation Test)Also known as environmental stress excitation test，And simulation test(Simulation Test)In the opposite direction，It is a human-induced method of applying environmental stress，Accelerate the extraction and removal of potential defects in the product to improve reliability，So its not just about passing，Instead, the more potential defects that can be exposed, the better，The idea has long been known，But progress has been much slower than the simulation。 He was the first to engage in rapid test technology internationalization and is considered a pioneer{TodayHot}This is...G.
2015-06-02 Reading quantity 1658
introduction： Industrial automation instrument for measuring liquid level and loading height of liquid and powdery materials。Measuring block、An instrument measuring the accumulation height or surface position of solid materials such as particles and powders is called a level meter。Measuring tank、Gauges that measure the height or level of liquid in containers such as towers and tanks are called level gauges，Also known as liquid level meter。An instrument that measures the position of the interface between two insoluble liquids or solid and liquid phases in a container is called a phase interface meter。 There are many kinds of level measuring instruments，Direct reading type liquid level meter is commonly used、Differential pressure level meter、Buoyancy level gauge、Capacitive level meter、Acoustic level meter and nuclear radiation level meter。In addition，also
2015-06-02 Reading quantity 2877
introduction：Abstract：Long time environmental control technology，The first problem we encountered was dehumidification。The astronauts entered the capsule，Youre exposed to the atmosphere，But how can this environment stay good for a long time，The key is how to keep the relative humidity of the atmosphere right。This can be solved easily on the ground，But its not so easy on the ship，Because the volume of air in the ship is only15Cubic meter，Two astronauts sat in it，The body has to expel moisture，The water vapor carried by the exhaled gas and the water vapor evaporated from the skin must enter the cabin air。A man has to give off all day1.8Kilo of steam，Two people a day3.
2015-06-02 Reading quantity 2851
introduction：On the metal friction surface of the bearing bush matrix，Out of order、A hole or groove of appropriate size，Embedded solid lubricant for forming，Built-up Mosaic 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。]。Solid lubricant emulsions are also used（Such asPTFEemulsion）Inject into these holes or grooves，It has been cured。 It is characterized by high carrying capacity、
2015-06-02 Reading quantity 1680
introduction： Extrusion blow molding is a method of making hollow thermoplastic parts。Popular blow molding objects are bottles、barrel、tank、Boxes and all packaged food、beverage、cosmetics、Containers for medicines and daily necessities。Large blow molding containers are commonly used for chemical products、On the packaging of lubricants and bulk materials。Other blow molding products include balls、Bellows and toys。For the automotive industry，Fuel tank、Shock absorbers for cars、Seat back、The center bracket as well as the armrest and headrest cover are blow molded。For machinery and furniture manufacturing，Blow molded parts have shells、Door frame、framing、A clay pot or a box with an open side。
2015-06-02 Reading quantity 2835
introduction： Working principle ZB3AA stainless steel rotor pump relies on two synchronous counter-rotating rotors to generate suction at the inlet during rotation(Vacuum degree)，Thereby inhaling the material to be transported。Two rotors divide the rotor chamber into several small Spaces，Double pressabcdSequence run；Run to positionawhen，onlyIThe chamber is filled with media；To positionbwhen，BThe chamber is partially enclosed in the medium；To position&n
2015-06-02 Reading quantity 2879
introduction：Precision improvement methodINAbearing[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。]After the installation on the host is complete，Such as measuring the radial runout of the spindle，It can be found that the measured value of each turn has a certain change；When measuring continuously，It can be found that after a certain number of revolutions，This change is approximately repeated。The measure of the degree of change is cyclic rotation
2015-06-01 Reading quantity 1469
introduction： Normalizing is the process of heating steel toAc3（orAcm）above30～50℃，Keep warm after appropriate time，Heat treatment process for cooling in still air。Heat the steel untilAc3above100～150℃Normalizing is called high temperature normalizing。 centring、Low carbon steel casting、The main purpose of forging normalizing is to refine the structure。Compared with annealing，After normalizing, the pearlite layer is finer、The ferrite grains are also relatively small，Therefore, the strength and hardness are higher。 Mild steel is too hard after annealing，The phenomenon of sticking knives occurs during cutting，cutting
2015-06-01 Reading quantity 1527
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