1. Carefully check the appearance quality
Observe whether the surface of the cold-drawn tube is smooth and flat, and whether there are obvious scratches, depressions or protrusions. Check whether there are impurities such as rust, oxide scale or oil on the surface. The surface of high-quality tubes should be clean and free of dirt. Check whether the tube body has any bends or deformations, and ensure that the overall shape is regular and there are no obvious appearance defects that affect the performance.
2. Verify material authenticity
Check the material certification documents of the pipe to confirm whether the material composition is consistent with the labeling to avoid using inferior materials. Use professional testing methods or experience to judge the material characteristics of the pipe. For example, high-quality pipes usually have a uniform color and texture. Pay attention to whether the material meets the requirements of the use scenario. For example, properties such as corrosion resistance and high strength must match the application needs.
3. Pay attention to dimensional accuracy
Measure the diameter, wall thickness and other key dimensions of the pipe to check whether they meet the standard requirements. The dimensional deviation should be controlled within a reasonable range. Check the straightness of the pipe body to ensure there is no obvious bending or twisting. The length specifications must be consistent with actual requirements. Check the dimensional accuracy of the interface to ensure accurate docking during connection to avoid affecting the installation quality due to dimensional errors.
4. Detection performance indicators
Understand the mechanical performance parameters of the pipe, such as tensile strength and hardness, to see if they meet the relevant standards. Sampling tests can be used to verify the performance. Check the pressure resistance and sealing performance of the pipe to ensure that there will be no leakage or deformation under the operating pressure. For pipes for special purposes, it is necessary to verify whether their special properties such as heat resistance and corrosion resistance meet the standards.
As a professional manufacturer of cold-drawn tubes, we have extensive industry experience and master core technologies, and can provide you with a full-process solution from selection to maintenance.