Product Description
Hard chrome piston rods are critical components in various mechanical equipment. Made from high-quality raw materials, they feature a hard chrome plating deposited on the surface of a precisely machined steel substrate using an electrochemical process, significantly enhancing wear resistance, corrosion resistance, and fatigue strength.
Technical Specifications
1. Material: Typically uses high-strength alloy steel, stainless steel, or other materials suitable for hard chrome plating.
2. Surface Hardness: The hardness of the hard chrome plating layer can usually reach 60-70 HRC (Rockwell hardness C scale).
3. Plating Thickness: Generally between 20 micrometers and 100 micrometers, customizable according to customer requirements.
4. Surface Roughness: Can reach below Ra 0.4 micrometers, ensuring good sliding performance.
Manufacturing Process
1. Material Cutting and Forging: Steel is cut to size, and forging may be performed to improve the internal structure.
2. Heat Treatment: Quenching and high-temperature tempering are carried out to achieve high strength and toughness in the base material.
3. Rough Machining and Grinding: Turning and external cylindrical grinding are performed to provide a dimensionally accurate and smooth surface for electroplating.
4. Hard Chrome Plating: A hard chrome layer is deposited in a precisely controlled electroplating bath.
5. Fine Grinding and Polishing: Final fine grinding and polishing are performed after plating to achieve strict dimensional tolerances and a mirror-like finish.
Features
1. Strong wear resistance:
After hard chrome plating, a hard chromium layer is formed on the surface of the piston rod, greatly enhancing its wear resistance.
2. Strong corrosion resistance:
The hard chrome plating has strong resistance to moisture, humidity, and most chemicals, making it particularly suitable for humid or harsh working environments such as marine, chemical, and mining industries.
3. Smooth surface:
The chromium plating keeps the piston rod surface smooth, reducing friction and improving operational efficiency.
4. Increased strength and hardness:
The hard chrome plating not only increases the hardness of the piston rod but also enhances its compressive strength, effectively preventing surface damage or deformation.
5. Extended service life:
Through hard chrome treatment, the durability of the piston rod is significantly improved, allowing it to be used for a longer time in harsh environments, reducing maintenance and replacement frequency, thus saving costs.
Application Areas
Hydraulic Systems: Hydraulic cylinder piston rods.
Automotive Industry: Shock absorber piston rods.
Aerospace: Components requiring lightweight design and corrosion resistance.
Marine and Offshore: Hydraulic systems in ships and offshore platforms.
Engineering Machinery: Excavators, loaders, cranes, etc.
Agricultural Machinery: Tractors, harvesters, etc.
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