Product Description
Hard Chromed Plated Piston Rods are key transmission components in hydraulic and pneumatic systems, manufactured through advanced surface treatment and precision machining processes. The product uses high-quality alloy steel as the base material, with a hard chrome plating layer on the surface, possessing excellent wear resistance, corrosion resistance, and surface hardness. They are widely used in various types of engineering machinery and precision equipment.
Features
1. Hard Chrome Plating: Hard chrome plating typically offers high hardness (HV 800-1000) and excellent wear resistance, effectively reducing friction and wear, thus extending the service life of the piston rod.
2. Corrosion Resistance: The chrome-plated surface has good corrosion resistance, resisting various chemical media, moisture, and oxides, making it suitable for use in harsh environments.
3. High Strength: Due to the use of high-strength steel and the combination of hard chrome plating, the hard chrome piston rod possesses extremely high tensile strength and impact resistance.
4. Smooth Surface: The chrome plating maintains a smooth surface, reducing frictional resistance and improving operating efficiency.
5. Precision Manufacturing: Typically manufactured with precision, ensuring accurate rod dimensions and a smooth surface, suitable for mechanical systems requiring high precision.
Quality Control and Inspection
1. Appearance: No pitting, peeling, cracks, or corrosion.
2. Coating Thickness: Measured using an eddy current or magnetic thickness gauge to ensure uniformity and compliance with requirements.
3. Hardness: Surface hardness of the coating is tested.
4. Adhesion Strength: The bonding strength between the coating and the substrate is tested through bending, filing, or thermal shock tests.
5. Corrosion Resistance: Evaluated through a neutral salt spray test (NSS Test), usually requiring no red rust for more than 72 hours.
6. Surface Roughness: Measured using a roughness meter to ensure a mirror-like finish.
7. Dimensional and Geometric Tolerances: Accuracy is ensured using micrometers, calipers, roundness testers, and straightness measuring instruments.
Applications
1. Hydraulic and Pneumatic Systems:
Widely used as piston rods in hydraulic and pneumatic cylinders. Applicable to plastic injection molding machines, construction equipment, rubber molding machines, papermaking machines, printing machines, refrigeration equipment, and food and chemical machinery.
2. Automotive Industry:
Used in components such as automotive shock absorbers and steering columns.
3. Construction Equipment:
Employed in hydraulic systems of heavy machinery like excavators and loaders.
4. Shipbuilding:
Used in ship hydraulic systems, meeting the corrosion resistance requirements of marine environments.
5. Agricultural Machinery:
Applied in hydraulic components of agricultural machinery such as tractors and harvesters.
6. Fitness Equipment:
Used in weight training equipment and hydraulic fitness machines.
Frequently Asked Questions
1. How do I clean a hard chrome plating?
Use a neutral detergent and a soft cloth for cleaning, avoiding corrosive or strong acid/alkaline cleaning agents.
2. Will the hard chrome plating peel off?
Under normal use, the hard chrome layer is not prone to peeling, but if the surface is subjected to mechanical impact or corrosion, it may affect the adhesion of the plating.
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