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introduction：Special engineering plastics introduce：Special engineering plastics, also known as high-performance engineering plastics, refer to higher comprehensive performance，Long-term use temperature at150℃Above engineering plastics,Mainly used in high technology,Military and aerospace、Aviation and other industries。 Special engineering plastics mainly include polyphenylene sulfide(PPS)，polysulfone(PSF),Polyimide(PI), polyaryester(PAR)，Liquid crystal polymer(LCP),Polyether ether ketone(PEEK)，Fluoropolymer, etc，There are many kinds of special engineering plastics，Excellent performance is expensive。 Polyphenylene sulfide（PPS） Polyphenylene sulfide stands for polyphenyl sulfide，Sigma molecule
2015-03-19 Reading quantity 2785
introduction： Magnetic plug method for rolling 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。]Conduct monitoring 1.Requirements for monitoring rolling bearings using magnetic plugs （1）Magnetic plug is only suitable for oil lubrication，And the key main bearing of the oil return through the special pipeline is monitored。 （2）The magnetic plug should be installed on the monitored spindle as far as possible
2015-03-19 Reading quantity 1530
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。]Why is it damaged? TIMKENBearings are precision parts，Therefore, it requires considerable caution when using，The change is the use of high-performanceTIMKENbearing，If used improperly，Nor can it achieve the expected performance effect，And easy to makeTIM
2015-03-19 Reading quantity 1529
introduction：Electromagnetic 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。] Use of electric force﹑A bearing whose shaft is suspended by magnetic force。Electrostatic bearings suspended by electric field force﹐Magnetic bearings are suspended by magnetic force(See picture Magnetic bearing(Incentive type) )﹐The combined bearing is suspended by electric field force and magnetic field force。The latter bearing has an electrode
2015-03-19 Reading quantity 2781
introduction：⒈Installation with copper rod and hand percussion This is the installation of small and medium-sized imported bearings[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。]A simple method of。When the bearing inner ring is a tight fit，When the outer ring is loosely fitted，Hold the copper rod against the bearing inner ring face，Hit the copper rod directly with a hammer，Force is transmitted through copper rods，Gently mount the bearing onto the shaft。When the bearing inner ring is large，The copper rod can be used to strike evenly around the end face of the bearing inner ring，Dont just tap on one side，
2015-03-19 Reading quantity 1559
introduction： For the ironworks，The efficiency of belt conveyors directly affects the quality of steel products、Key technical links in the production and smelting process。And the supporting characteristics and service life of the roller are the performance parameters of the belt conveyor（Haul distance、Volume of traffic、Cost and noise, etc）And the reliability of the work is greatly affected。For a long time，The supporting roller of belt conveyer in ironmaking plant adopts rolling bearing as support[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，Be used for
2015-03-19 Reading quantity 1442
introduction：Working principle: The material liquid is atomized by high-pressure pump through nozzle，The droplets are mixed in the tower with the hot air that enters the drying tower after being regulated by the hot air distributor，Rapid heat and mass transfer，Dry in a very short time to become a powder granular product。It is divided into high pressure according to different atomization pressure、Medium and low pressure spray dryers，According to the different flow field is divided into parallel flow、Mixed and countercurrent spray dryers。 Performance characteristics: 1、Suitable for drying non-viscous and low-viscosity liquid materials 2、Simple nozzle structure，Easy to use and maintain 3、Low atomizing power
2015-03-19 Reading quantity 2790
introduction：A milling machine is a machine that uses a milling cutter to mill the workpiece。The milling machine can remove the surface milling、groove、Gear tooth、Threads and splines outside the shaft，It can also process more complex shapes，Higher efficiency than planer，It is widely used in machinery manufacturing and repair departments。 The earliest milling machine is the American Whitney Yu1818Created horizontal milling machine；Spiral grooves for milling twist drill bits，American Brown Yu1862Created the first universal milling machine，This is the prototype of the lifting milling machine；1884Before and after the year appeared the gantry milling machine；Twentieth century20Semi-automatic milling machines appeared in the 1990s，The table can be completed with a stop“feed-
2015-03-19 Reading quantity 2789
introduction： Fan selection is generally carried out in the following steps： 1、Calculate and determine the amount of ventilation required in the tunnel： 2、Calculate the total thrust requiredIt It=△P×At(N） among，At：Tunnel cross-sectional area（m2） △P：Sum of resistance（Pa）；Generally, the following should be included4item： 1）Tunnel inlet resistance and outlet resistance； 2）Tunnel surface friction resistance，Suspension fan device、Scaffolding and road signs, etc
2015-03-18 Reading quantity 2783
introduction：What are the advantages of the truck 1、Carrier tiller with plastic handle clamp，Suitable shape，Its very comfortable to use。The operators hand is protected by a strong protector。Lift is easily controlled by hand、Descending and walking controls，Light to use、secure、comfy。 2、The truck is also called the pallet car, which is the logistics handling equipment that plays the role of transporting goods。The carrier has a small body、Light weight、Able to work in narrow passageways and fully loaded into elevators。The control part is mounted on the upper part of the handle，Ease of handling，Flexible control mechanism、reliable、secure。Automatic unloading with overload
2015-03-18 Reading quantity 2902
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