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introduction： Silk fabrics have excellent drape properties，Soft shine，Special silky sound，Especially good comfort and health care，Loved by the people。however，Silk fabrics wrinkle easily when washed or moistened。To improve the resilience of silk，Many studies have been done at home and abroad，When maleic anhydride is used as an anti-wrinkle finishing agent，The experimental results show that it has good durability setting effect。At present，This process uses potassium pyrosulfate as a catalyst for wrinkle-resistant finishing，Potassium pyrosulfate is oxidizing，As a result, the fabric will turn yellow after treatment，Significant strength decline。 Nanotechnology has become a novelty in recent years
2014-12-24 Reading quantity 2885
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。]It can withstand both radial and axial loads。Can work at higher rotational speeds。Larger contact Angle，The higher the axial carrying capacity。High precision and high speed bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is used to fix and reduce load friction during mechanical transmission
2014-12-24 Reading quantity 1600
introduction： Materials peculiarity Scope of application Beryllium copper BECU Specific gravity：8.9 nonmagnetic，Good electrical conductivity。
2014-12-24 Reading quantity 1539
introduction：TIMKENbearing[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。]Whether the installation is correct，Affect the accuracy、Life span、property。therefore，Design and assembly department forTIMKENbearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is used to fix and reduce the friction coefficient of load during mechanical transmission
2014-12-24 Reading quantity 1526
introduction： 【Main use】 This machine is suitable for pharmaceutical、Chemical engineering、metallurgy、food、Construction and other industries。convexity、Difficult to crush the material processing，Inclusive plastic，Steel wire etc. are crushed，It can also be used as a supporting equipment for the previous process of micro-grinding processing。 【, point】 The machine is a vertical grinding mechanism，Not subject to material viscosity，hardness，Limitations of softness, etc，It can have a better crushing effect on any material。 【Working principle】 The material is sent to the crushing chamber by the hopper，By the impact of the blade and the base，Rotary knife and fixed knife simultaneously shear and crush，Due to the placement of centrifugal forces
2014-12-24 Reading quantity 2849
introduction：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 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 the most widely used mechanical parts question，meanwhile，It is also one of the most easily damaged components in the machine。Many rotating machinery failures are associated with rolling bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is fixed and reduced during mechanical transmission
2014-12-24 Reading quantity 1616
introduction：Sealing is to keep the 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。]Good internal lubrication，And block cooling water、Iron oxide、The immersion of impurities into the working surface extends the service life of the bearing。Due to rolling mill bearing seal problem，The most damaged bearing is near the roll side，Bearings are often contaminated by grease、To run off，Wear the working surface of the part、Flake or even crumble，In particular, the emulsion of the cold strip mill penetrates
2014-12-24 Reading quantity 1524
introduction： This paper discusses the geometric characteristics of the roundness of the groove in grinding inner ring，The influencing factors and their internal relations are analyzed，The experimental factors of grinding inner ring channel roundness modeling were determined，The experiment was designed according to the mixed orthogonal table，Consider the interaction effects between factors，Through the test data stepwise regression modeling，The mathematical model of the relationship between grinding roundness and process parameters was established，The influence of grinding process parameters on roundness is expressed intuitively with a three-dimensional surface，The roundness mathematical model is further analyzed，Some useful conclusions are drawn。 &nb
2014-12-24 Reading quantity 1548
introduction：Contact fatigue failure refers to angular contact ball 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。]The working surface is subjected to alternating stress and produces failure。Contact fatigue spalling occurs inFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact consisting of a cage assembly with a solid window cage
2014-12-24 Reading quantity 1606
introduction：Power supply characteristics of electric forklift advantage；Three-phase AC motor is the main component of AC drive system，Its working principle is to transfer three-phase alternating current to the stator winding，Gyromagnetic field generation，Induction of the closed rotor winding，To generate an electric current，The rotor rotates in the direction of rotation of the rotating magnetic field under the action of the electromagnetic force。This approach has two obvious advantages: first，The most prominent advantage of AC motors is the absence of carbon brushes，There is also no limit to the maximum current that DC motors usually have，This means that the motor can get more energy and larger system in practical use
2014-12-24 Reading quantity 2876
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