the long cylinder piston rod is made of 45 steel, and its processing route is: forging (rolling)-blanking-tempering-straightening-machining-surface quenching, tempering-straightening-rod head welding-machining-grinding-stress relief annealing-polishing-hard chromium plating-polishing-cleaning-assembly.
heat treatment of piston rod is a key process to ensure the internal quality and mechanical properties of piston rod. The quality of heat treatment is directly related to the life and reliability of the whole hydraulic system. If the heat treatment is improper, the piston rod will break at an early stage in the use process, and other parts will be damaged. In serious cases, the whole equipment may be destroyed and casualties may be caused.
the hydraulic cylinder is an important executive component in the hydraulic system of construction machinery, which is used to perform reciprocating motion and drive the construction machinery to complete various functions. The piston rod is a key force-transmitting part with high technical requirements for connecting the piston and the working parts in the hydraulic cylinder, and it needs to bear a large tensile stress in the working process. Therefore, the piston rod must have sufficient strength, rigidity and toughness, and it is easy to wear due to abrasion in use, and it must also have high wear resistance.