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Basic manufacturing requirements for hydraulic piston rods
Feb 20, 2019

In order to meet the requirements of the application, the manufacture of hydraulic piston rods should meet the corresponding standards. For example, the outer diameter tolerance of the hydraulic piston rod guide section should not be lower than e8 in GB1801; the roundness tolerance of the guide section should not be lower than the grade 9 of GB1184. The outer diameter of the outer diameter busbar should be no more than 0.1/1000.

 

At the same time, the vertical tolerance of the end face of the hydraulic piston rod in contact with the piston should not be lower than 7 in GB1184; the piston rod thread adopts the 6-level precision in GB197; the surface roughness Ra of the outer diameter of the piston rod guide section The value is not more than 0.4/1m.

 

The surface of the hydraulic piston rod should be treated by surfacing stainless steel anti-rust treatment. The thickness of the stainless steel layer should not be less than 1mm after processing; at the same time, it should be chrome-plated and rust-proof, first plated with 0.04~0.05mm white chrome, then plated with 0.04~0.05mm hard chrome, single The thickness of the side plating layer is 0.08 to 0.10 mm. These are the basic manufacturing requirements for hydraulic piston rods, and the user can refer to the quality of the product.www.xhychromerod.com