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introduction：（1）Measurement of bore The bore can be measured by checking the reference size on the outer micrometer with the inner diameter gauge，It is also necessary to measure the roundness and cylindricity of the bore。Burnt out 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 diameter of the bore at the opening is often reduced and the roundness is excessive，It is extremely unfavorable to the normal work of bearings。If connecting rod
2015-04-05 Reading quantity 1553
introduction：The strategy of traditional manufacturing industry is economy of scale first，The 1980s put price and quality first，Since the 1990s，Has developed to market response first。At a time when manufacturing is becoming increasingly international，Shorten the product development cycle and reduce the investment risk of developing new products，Become the key to the survival of enterprises。In recent years，The manufacturing strategic focus in the manufacturing market is undergoing a major shift from cost and quality to time and response。To quickly introduce diversified products to the market is an important guarantee for manufacturers to seize the market opportunity and seek survival，Rapid response manufacturing has become the focus of international research，The emergence of rapid formation/Express system
2015-04-05 Reading quantity 2784
introduction：Stainless steel storage and transportation custody：Pay attention to moisture when storing、dirt、oil、Lube oil，And surface rust，Or poor welding corrosion resistance decreased。 When water is immersed between the film and the steel substrate，The corrosion rate is even faster than without the film。The warehouse should be kept clean、Dry easily ventilated place，Leave the package in its original state，The coated stainless steel should be protected from direct light，The film should be checked periodically，If the film deteriorates（Film life6month）Should be replaced immediately，If the packaging materials are soaked when padding paper，To prevent surface corrosion, remove the pad immediately。
2015-04-05 Reading quantity 1536
introduction：Heating is one of the main processes of metal heat treatment。Selecting a reasonable heating method can ensure and improve the quality of metal heat treatment（See Quality control of metal heat treatment）。The defects of some parts after heat treatment are caused by improper heating methods。When heating，The temperature should be maintained appropriately and evenly to avoid or reduce oxidation of the metal surface、decarburization：At the same time, the heating speed should be controlled。Its all about choosing the right heating method。Early heating was fueled by charcoal or coal，It was done in an open stove。Later change the position of the combustion chamber，Made into different forms of reverberatory furnaces，Improved heating efficiency。To change due to fire
2015-04-05 Reading quantity 2873
introduction：Crane safety device to prevent outdoor crane from sliding along the track under strong winds。A clamp attached to the bottom structure of the crane is usually used﹐Clamp the two sides of the track head to prevent coasting。The rail clamp is divided into two types: dynamic and electric(See picture Structure of crane rail clamp )。The manual rail clamp is generally screw type﹐Simple structure﹐But the clamping force is small﹑Move slowly﹐It is mainly used on small and medium-sized or temporary cranes with small windproof area。Large cranes or port cranes mainly use electric rail clamps。It is made by a heavy hammer through a lever or by a spring force to make the clamp clamp the track﹐With the oil in the hydraulic system
2015-04-05 Reading quantity 2799
introduction：To develop a sound、Lead-free welding production line with high qualified product rate，Careful planning is required，Efforts should be made for the implementation of the plan and strict process monitoring to ensure the quality of the product and keep the process under control。These controls are associated with many changes，As material、equipment、Compatibility problem、Pollution problem、Statistical process control(SPC)Program scheduling。 Lead-free welding material is used，The welding process will be seriously affected。therefore，In the development of lead-free welding processes，All relevant aspects of the welding process must be optimized。Georze WestbyAbout the development of lead-free welding processes
2015-04-05 Reading quantity 2801
introduction： class Dont brand Chemical composition（Mass fraction）（） mechanics Cu Mg Mn Fe Si other Diameter dimension/mm Material state σb /MPa δ5 （）≥ prevent rust
2015-04-05 Reading quantity 2800
introduction： Clutch slip maintenance method Once it is determined that the clutch is faulty because of the slip，Then we need to examine some issues。 1、Check the free travel of the clutch pedal。Clutch free travel should comply with the original factory regulations，If the pedal has no free travel or the free travel is too small，Need to be adjusted。Hydraulically operated clutch free travel adjustment：Loosen the lock nut，Adjusting push rod，Shorten the length of the putter，Until the free travel meets the requirements。Free travel adjustment of the cable operated clutch:Loosen the lock nut，Adjusting nut，Sheath effective
2015-04-05 Reading quantity 2802
introduction：decideIKObearing[IKObearing:IKONeedle roller bearing with its special internal structure to achieve the mechanical design of small、Light weight。Guideway bearings are based on the high quality given by needle roller bearings，Precision machining with unique mechanical equipment，Evaluate the quality of the latest machines，Products always maintain high performance and high quality level。]There are many factors in the length of service life，But there are roughly two kinds，The first is the internal cause（Factors of the bearing itself)，The other is the bearing external cause。 The internal factors of aligning roller bearing mainly include the structural design、Manufacturing process and material quality are three major factors。 IKObearing[IK
2015-04-05 Reading quantity 1557
introduction： Method Type Easy to burn flame Remove whether to continue burning flame color state after burning odor characteristics of the molding product PF(Phenolic resin)Slowly burning mostly for transparent forming products extinguished yellow expansion rupture,The color turns dark, carbonated and smelly,Phenolic black or brown UF( Urea formaldehyde)Inextinguishable yellow,The end is green&nb
2015-04-05 Reading quantity 2907
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