Hollow steel bar is an important component for mechanical piston movement. Due to the high frequency of piston movement, the quality of this part is very high. After chrome plated piston rod can provide its hardness and service life, the following to give you a brief introduction to the basic requirements of chrome hollow steel bar.
Basic requirements for chrome hollow rod:
1. Must have sufficient strength, stiffness and stability;
2. Good wear resistance, high machining accuracy and surface roughness requirements;
3. Structurally, minimize the impact of stress concentration;
4. Ensure that the connection is stable and prevents loosening;
5. The design of the piston rod structure should facilitate the disassembly and assembly of the piston.
So how to choose high quality chrome plated piston rod?
Step 1: Materials
This material is the main raw material in the manufacture of cylinder and cylinder rods, so we can choose high quality chrome plated piston rods according to the quality of the material used. Wuxi YUTONG Group produces high-quality CK45/4140 chrome plated rods.
2. Hardness
Hardness mainly refers to the ability of a material to resist hard objects being pressed into its surface. However, the hardness is not the harder the better, the hardness should be appropriate. Because only the appropriate hardness can ensure the quality of the product.
3. Straightness
High quality chrome hollow rod also attaches great importance to its straightness requirements, because straightness is an important place for guidance.
4. Chrome plating
The chromium plating layer of the high-quality chrome rod will usually reach more than 0.22 mm, because the use of this thickness of the optical shaft piston rod is very good.
Chrome plated rod and chrome hollow rod is mainly used in hydraulic pneumatic, construction machinery, automobile manufacturing piston rod, plastic machinery guide post, packaging machinery, printing machinery roller, textile machinery, conveying machinery shaft, linear optical shaft and so on.