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Evolution of Guide Strip Technology and Engineering Value Analysis
As the core supporting component of hydraulic cylinders, the performance of guide strips directly affects the reliability of the equipment. Based on the principles of material mechanics and tribology, this article analyzes how engineering plastics guide strips solve the stubborn problem of the failure of metal guide sleeves, and verifies their economic efficiency throughout the entire life cycle through industrial cases.
I. Function Positioning: An Underestimated Key Component
1.1 Three Core Functions
Load Support: Bearing 15%-30% of the lateral force of the piston rod (equivalent axial pressure > 10 MPa)
Motion Control: Ensuring the straightness error of the piston rod < 0.1 mm/m
Friction Management: Maintaining a dynamic friction coefficient of 0.05 - 0.12 (much lower than 0.15 - 0.25 of metals)
Installation and Maintenance Key Points
Surface Pre-treatment
The hardness of the piston rod should be ≥ HRC55, and the surface coating thickness should be > 0.03mm.
The cleanliness requirement for the mating surface: NAS 1638 Class 8 grade
Maintenance and management specification for lubrication
Initial lubrication: Lithium-based molybdenum disulfide grease (application rate 0.1g/cm²)
Operation monitoring: The oil particle contamination level remained consistently <18/15 (in accordance with ISO 4406 standard)
Conclusion: The engineering plastic guide strip has overcome the technical limitations of metal materials through material composites and structural innovations. Industrial practice has proven that it can increase the reliability of the hydraulic system by over 90%, reduce the total life cycle cost by 40%-60%, and is reshaping the value standard of fluid power systems.FOREVER SEALS! Seals manufacturer, accept custom seals, from design to research and development, from production to testing, a full range of services. For more information, please contact FOREVER SEALS directly. FOREVER SEALS product experts are here to help you! Whatsapp: +86-18098184099；WeChat: +86-13049188460； E-mail: sales@foreverseals.com.
