1. Good raw material pretreatment is the basis for ensuring surface quality
The pipe blank is derusted and degreased to remove surface oxide scale and impurities to prevent foreign matter from being pressed into the surface and forming defects during processing. Ensure that the surface of the raw material is flat and smooth, providing good basic conditions for subsequent rolling processing.
2. Precise control of processing parameters is crucial to surface quality
According to the material and specifications of the pipe, the rolling speed, feed rate and pressure are reasonably set to avoid scratches, cracks or orange peel-like textures on the surface caused by improper parameters. Stable parameter control can make the metal surface uniformly plastically deformed to form a smooth surface.
3. Maintaining the accuracy of processing equipment is the key link
Regularly check the finish and dimensional accuracy of the rolling die, replace worn parts in a timely manner, and ensure uniform contact between the die and the pipe. At the same time, maintain the stability of the equipment transmission system to avoid uneven surface texture caused by vibration or deviation.
4. Optimizing cooling and lubrication conditions cannot be ignored
Choose the appropriate lubricating coolant to fully cover the contact surface during the processing, reduce frictional heat and metal adhesion, and avoid burns or scratches on the surface. Reasonable cooling and lubrication can reduce the damage to the surface quality during the processing.
5. Strengthening surface post-treatment technology can improve quality
The rolled tubes are cleaned, passivated or polished to remove residual impurities and burrs, and enhance surface finish and corrosion resistance. Targeted post-processing can compensate for minor defects during processing.
6. Strict implementation of quality inspection process is essential
Use visual inspection, roughness measurement and other methods to conduct comprehensive surface quality inspections to promptly detect and address defective products. Establishing comprehensive inspection standards can ensure that surface quality meets usage requirements and improve product reliability.
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