A Brief Discussion on the Methods and Principles of Rectifying Piston Rod Deformation
Release time:
2020-10-09 15:35
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Piston rodHardness measurements of piston rods are typically divided into two types: destructive and non-destructive measurements. Non-destructive measurements cause minimal damage and do not completely destroy the part. Compared to the piston rod, this damage is fatal, so it can only be done through destructive measurement methods.
After nitriding,Piston rodSometimes deformation occurs. At this point, the finished size requirements have been met, and the surface hardness is very high. It cannot be refined through machining methods. Only straightening methods can be used to control the deformation to a reasonable level. Within the range. Commonly used pressure straightening machines, whether hot or cold, have straightening accuracy that is affected by human factors, and can reach 1 to 2 millimeters.
Usually,Piston rodThe bending deformation of some products after nitriding treatment is 0.1 to 0.3 mm, so the deformation is very small and does not meet the requirements for correction with a pressure straightening machine. Bending and tapping vibration methods can be used for straightening. Straightening principle: Under the action of periodic external force applied by the vibration exciter—excitation force, the workpiece produces resonance. The alternating stress and residual stress of each part of the workpiece are superimposed, causing the workpiece to yield locally and cause small plastic deformation; the residual stress in the workpiece is reduced, and the redistribution tends to be uniform, strengthening the deformation resistance of the metal matrix to achieve the purpose of enhancing the geometric accuracy and stability of the workpiece. This processing method is called vibration stabilization. The vibration stabilization process is usually used to stabilize parts, and here it is used to straighten piston rod parts.
The above isPiston rodthe straightening methods and principles of deformation. Do you understand? If you want to learn more about accessories details, please follow Dongguan Zhanwang Machinery Co., Ltd., a professional manufacturer ofinjection molding machine accessories、rubber machine accessories。
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Zhanwang Machinery Co., Ltd., Dongguan
Dongguan Zhanwang Machinery Co., Ltd. is a manufacturer and supplier of various precision mechanical parts, including rubber and plastic machinery parts, pneumatic and hydraulic machinery parts, precision shafts, piston rods, standard chrome-plated bars, guide columns, uprights, guide pillars, rollers, etc. We provide surface treatments such as super mirror polishing, hard chrome plating for different specifications of precision mechanical parts and various molds. We also offer additional surface treatments such as tempering, medium and high-frequency quenching, nitriding, and blackening for mechanical parts. Our factory is equipped with large CNC lathes, ordinary lathes, external cylindrical grinders, centerless grinders, and milling machines, enabling us to process and manufacture various special mechanical parts. We offer free pick-up and delivery with competitive Price.
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