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What is the maintenance standard for the piston rod?
Jul 21, 2018

In order to ensure the quality and use of the piston rod, it needs to be repaired. So what kind of standards do you need to implement during the overhaul? First of all, during the inspection of the piston rod product, the curvature should not exceed 0.1 mm / m. Secondly, the deviation of the finished product cylindricity should be kept within the range of 0.1 to 0.3 mm.

 

Furthermore, during the quality inspection of the piston rod, it is also necessary to ensure that the deviation of the perpendicularity between the center line of the hole and the bearing surface of the shoulder is not more than 0.02 mm within a length of 100 mm. It should be noted that the deviation of the perpendicularity of the center line of the piston pin hole of the cylindrical piston from the center line of the piston should reach a standard of not more than 0.02 mm within a length of 100 mm.

 

In addition, as a product with frequent movements and high technical requirements, the maximum allowable value of the roughness Ra of the piston rod surface should be 0.40 μm. There are no defects such as abrasion, scratches and cracks on the surface of the product. Also, ensure that the piston rod wear does not exceed 0.3 mm during use.http://www.xhychromerod.com/