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introduction： abroad，There are special laboratory waste disposal stations for centralized collection and treatment。Laboratory waste centralized treatment station management standards、strict，Strong sense of safety and environmental protection。Site concentration、Special room、Special container storage，Specialized personnel management，Strict partition、sort，Central to the special waste disposal yard。After all kinds of waste are sorted and handed over by various laboratories，The processing station weighs the incoming waste and stores the information into the computer，Reclassify them and put them in the designated places。Such as，Abandoned radioactive source、Waste oil、Scrap chemical reagent、Chemical synthesis“Three wastes”
2015-01-11 Reading quantity 2873
introduction： Main use： For food、medicine、Various flexible packaging cartons in chemical industry、paper、Plastic bag、Aluminum foil and other materials surface printing。 Working principle and structural characteristics： Solid ink wheel printer is an advanced contact type hot coding machine。This machine adopts intermittent automatic heating and precision mechanical combination，According to user needs，Choose any print content and location，The number of printing sheets can be set，Print fast，Reliable performance，Legible writing，The stamping action and counting are controlled by photoelectric switch。 Technical parameter： Power source：220V
2015-01-11 Reading quantity 2894
introduction：INAbearing[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 process of use due to its own quality and external conditions，Its carrying capacity、Rotation accuracy and wear resistance will change.When the performance index of the outer spherical bearing is lower than the use requirements and can not work normally，The bearings fail or even fail，In case of bearing failure
2015-01-11 Reading quantity 1540
introduction：Peel off Damage state:SKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]When rotating under load，Inner ring、The raceway surface or rolling surface of the outer ring shows a fishscale peeling phenomenon due to rolling fatigue。 reason:Excessive load。Poor installation（nonlinearity）Moment of force
2015-01-11 Reading quantity 1536
introduction：1．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 geometric dimensions and structural characteristics of the system； 2．Energy loss during metal deformation（Convert to heat，The same hereinafter）； 3.The microscopic sliding friction energy loss in the contact patch； 4.Energy loss from rolling blocks（If the outer ring surface is rough，There is dust and sand），Out of line with the runway，Apparent not
2015-01-11 Reading quantity 1565
introduction：The latest research shows，Lead-free welding can be very fragile，In particular, premature interface failure is easy to occur under impact load，Or often weakened by moderate aging。The mechanism of embrittlement will of course vary depending on the surface treatment of the pad，However, none of the common pad coatings seem to be consistently immune to the embrittlement process，This is for products that endure relatively high operating temperatures and mechanical shocks or violent vibrations for a long time，Is very worthy of attention。 Due to the common weldable surface coating is associated with the risk of embrittlement，So the electronics industry is facing some very difficult problems right now。however，These embrittlement mechanisms
2015-01-11 Reading quantity 2891
introduction：KOYOBearing at slightly negative operating clearance，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。]Maximum life。But it is actually very difficult to keep the bearings in this optimum state once certain conditions of use change，The negative clearance increases，Resulting in a significant decline in the life of the outer spherical bearing or heat。therefore，Initial clearance is usually chosen
2015-01-11 Reading quantity 1564
introduction： content 1、The basic concept of plastics 2、Molding and processing properties of hot plastics 3、Design principles of hot plastic products 4、Injection molding Overview 5、Basic structure and classification of injection molding die 6、Cavity parting surface and pouring system（one） 7、Cavity parting surface and pouring system（two） 8、Design of injection molding mold parts（one） 9、Design of injection molding mold parts（two） 10、Design of injection molding mold parts（three） 11、Design of injection molding mold 12、Plastic mold design step
2015-01-11 Reading quantity 2828
introduction：1、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。]Vibration of Bearing vibration is very sensitive to bearing damage，exfoliation、impression、corrosion、crack、Wear and tear will be reflected in the bearing vibration measurement，therefore，By using a special bearing vibration gauge(Frequency analyzer)The magnitude of the vibration can be measured，Transit frequency
2015-01-11 Reading quantity 1497
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。]Temperature rise，First, see if there are any wrong actions，If the temperature is indeed rising，The following actions should be taken immediately： (1)Check cooling water pressure，Water flow and piping system is normalFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And with
2015-01-11 Reading quantity 1568
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