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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 1533
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 2870
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 2798
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 2800
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 2799
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 2801
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 1555
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 2903
introduction：dizhongheng Platform scale platform weigher For automotive scales、Weighing instruments in rail scales and vehicle-train hybrid scales。Static automotive scales and rail scales are divided into mechanical and electronic types，Dynamic automotive scales and rail scales are electronic only。figure[Electronic ground scale working principle diagram]It is the working principle of electronic ground scale。Force transducer（See force measuring instrument）Convert the mass into an electrical signal and send it to the measuring circuit，Display and record results or perform data processing after automatic zeroing。The ground scale is widely used in the weighing and measuring of raw materials entering the factory and finished products leaving the factory，Weighing essence
2015-04-05 Reading quantity 2826
introduction： Domestic production of machinery and equipment exported to the EU、AcquireCEAt certification time，We usually see this in the design of electrical control circuits“Safety level”The concept of。So how to distinguish the safety level of electrical control circuits？How are circuits designed to meet safety certification requirements？ First of all，Before designing a machine，A risk assessment must be carried out on the machine。From all sides、Each part，What are the risks of assessing this machine，Finalizing the machine（Or part of it）Danger level。According to European machine safety standardsEN 954-1，Danger dispatching
2015-04-05 Reading quantity 2910
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