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introduction：1.summarize MAX3867Single power supply、High speed laser diode drive circuit，The transmission rate is up to speed2.5Gbps，Especially suitable forSDH/SONETSystem、duplexer、Digital switching and2.5GbpsOptical transmission system。 MAX3867Internal automatic power control(APC)Closed-loop circuit，It is used to compensate the change of optical output power caused by temperature change and chip aging，Maintain the laser diode output power constant；In addition，There are other auxiliary functions，Such as：Enable control、Soft boot、APCFailure monitoring，Therefore, the application is very flexible and convenient。2.Main performance reference
2015-01-05 Reading quantity 2810
introduction：1，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。]Causes of high temperature： (1).May beTIMKENBearing cooling water is interrupted，pyrogenicity。 (2).May beTIMKENThe oil quality of the bearing deteriorates，The oil itself is not clean or the oil deteriorates during operation。 2，
2015-01-05 Reading quantity 1460
introduction：The adjustment is based onIKOBearing accuracy detection of the specific requirements of the operation，The maintenance and stability of the accuracy depends on the relevant pre-tightening and anti-loosening means and measures to ensure。Hydraulic press used in all walks of life，Because of its different uses, its working accuracy requirements are also different，Different industry standards are also used in manufacturing。Different products are produced in the same industry，The accuracy required is unlikely to be consistent。Therefore, the same industry standard is divided into several levels according to different working conditions and corresponding precision indicators。In factory production, the technical department shall prepare the inspection outline and test outline according to the precision standard of the production press，Send to relevant departments
2015-01-05 Reading quantity 1559
introduction：three、Influence on brake performance of wheel loader (1)The pipe of the brake system is full of steam and when there is gas，Because the compressibility of gas is relatively large，The brake pedal feels soft when pressed down，elastic，Which means air has seeped into the brake fluid，It will make the braking effect worse and reduce safety，Brake response speed is reduced。Especially in mountainous and mountainous areas, the temperature of brake fluid increases due to frequent braking，Suppose the boiling point of the brake fluid is low，It is easier to cavitation the braking system and damage the rubber seals and brake components of the booster pump。Causing a complete failure of the braking system，May cause harm to personal safety
2015-01-05 Reading quantity 1541
introduction： theFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]Its no exaggeration to call it the joint of a car。In a car，Its not just its four-legged wheels that need to be usedFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]，There are no mechanical parts that can changeFAGbearing[FAGbearing:Spindle shaft
2015-01-05 Reading quantity 1560
introduction： Technical index： purity≥99.9995% dew-point≤-70℃ Oxygen content≤5ppm Hydrogen content≤1ppm peculiarity： The oxygen content of raw gas is less than1000ppmwhen，Use a deoxidizer to remove oxygen，The purity and pressure of nitrogen are not affected by hydrogen。 DCZcWorking principle diagram of nitrogen purification equipment Type specification Rated processing gas
2015-01-05 Reading quantity 2865
introduction： According to the presentation，The international advanced industrial countries have adopted reliability design in the production of chains and moldsCAD/CAMtechnology，Fast development of new products、High precision，The quality is more guaranteed。Most of the new products have high wear resistance、High fatigue、High precision，The structure form has a micro chain and a variety of transport chains、Cable chain、Double speed chain, etc，Wear resistance is used in the material、heat-resisting、plastic、Oil powder metallurgy and other materials，The performance of the chain is further improved。 In addition，In processing，The general specification chain plate adopts the high-speed multi-chip blanking process，Roller manufacturing using five stations cold extrusion
2015-01-05 Reading quantity 2906
introduction：one、Milling tool There are many kinds of milling cutters(Most of them are standardized)，According to the form of the back of the teeth, the milling cutter can be divided into two categories: sharp teeth milling cutter and shovel teeth milling cutter。The back of the cusp milling cutter is milling，The rear cutter face is a simple plane，As shown in the figure8-13aAs indicated，Regrind the knife surface after blunt。The tool is widely used，Milling cutters for surface and groove machining are generally designed with sharp teeth。The main difference between the blade milling cutter and the pointed milling cutter is the special shape of the back cutter surface made of the shovel，As shown in the figure8-13bAs indicated，Regrind the front edge with a blunt edge。The shovelled rear cutter face ensures that the profile of the milling cutter remains unchanged throughout its use。Now press the milling cutter
2015-01-05 Reading quantity 2808
introduction：⑴Centripetal ball 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。]Identification of Radial ball bearings in normal technical condition，therein、The outer ring raceway should be free of peeling and serious wear marks，And in the shape of a bright circular groove；All ball bearings should remain round，spotless、Cracks and flaking；The cage is not loose、crusheproof、unworn。pawpaw
2015-01-05 Reading quantity 1564
introduction： In cold die manufacturing，The use of low melting point alloys to expand the volume of condensation，To fasten parts，Can reduce the convex and concave die The difficulty of the assembly work，At the same time, the quality can be guaranteed，Especially for large and complex dies，Its effect is more remarkable。 figure1 figure1It is a silicon steel sheet in common transformers，The material is silicon steel sheet for electrical purposesD32，Material thickness0.35mm。You can see from the picture， The design requirements for the parts are not very strict，In production practice, how to ensure its batch and quality will be a key。 1 Mold design idea The protruding arm of the part is longer，blunt
2015-01-05 Reading quantity 2889
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