① Raw Material Selection: Commonly used materials for piston rod machining include 45# steel and 2Cr13 stainless steel. The appropriate material is selected based on the operating environment and performance requirements. For example, a hydraulic piston rod manufacturer, to meet corrosion resistance requirements, chooses 2Cr13 stainless steel for piston rods used in marine equipment. During procurement, the material's quality certificate must be checked to ensure that the chemical composition and mechanical properties meet standards. For instance, the carbon content of 2Cr13 needs to be controlled between 0.16% and 0.25%. ② Blanking and Cutting: The piston rod is cut according to its design dimensions. Common cutting equipment includes saws and lathes. For example, to machine a piston rod with a diameter of 50 mm and a length of 1000 mm, a metal circular saw is used to cut 45# steel bars. Before cutting, the perpendicularity of the saw must be calibrated. After cutting, the flatne...
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