Wuxi YUTONG

  For 4140 cylinder rods , leading hydraulic cylinder manufacturer Wuxi YUTONG recommends chrome hardness of at least 900 HV/10. However, there are other factors that go into the hard chrome plating process to ensure it is suitable for the proper operation and performance of your hydraulic cylinder. Shiny surface layer of your hydraulic cylinder rod is all that stands between you and failure. This very hard, perfectly finished surface must conform to very precise specifications to preserve the integrity of the hydraulic seal and give it a frictionless surface upon which it can run smoothly.The two most common types of chrome shafting used to make hydraulic cylinder rods are CPO and IHCP. CPO stands for Chrome Plated Only, and IHCP stands for Induction Hardened & Chrome Plated . CPO shafting is typically 1045 steel with a Rockwell hardness of Rc15/19. IHCP is also 1045 steel, but achieves a surface hardness of Rc58/60 through the induction hardening process. It should be noted t

  Induction hardening is a type of heat-treating process that typically subjects a cylinder piston rod under induction heating and quenching. After conducting this specific process, the steel rod part is intended to undergo a martensitic formation, allowing it to obtain features and properties that it does not possess before. The process of induction heating starts by placing a metal part near a copper coil that has a significant level of alternating current. Through eddy current and hysteresis losses, the said coil can generate heat that is directed at or near the surface of the cylinder rod . Subsequently, the cylinder rod is directed or submerged under a water-based quench, which then initiates its aforementioned martensitic formation. Induction Hardened Chrome Plated Bars from Wuxi Yutong are produced by using advanced processing techniques usually on AISI 1045/1050 or 4140 steel rods , for surface removal, polishing, induction hardening, followed by hard chrome plating to a thi