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1. manufacturing process: the manufacturing process of fine-tied seamless steel pipe (also known as cold-drawn seamless steel pipe) adopts cold-drawn process. This is by broaching hot-rolled or cold-rolled blanks for many times, so that they gradually form seamless tubes. This process can improve the dimensional accuracy and surface quality of steel pipes. Precision seamless steel pipe adopts more advanced manufacturing technologies such as cold drawing, cold rolling and cold rolling. This process requires more accurate equipment and process control to ensure higher dimensional accuracy and surface quality.
2. Dimensional accuracy: The dimensional accuracy of precision-bound seamless steel pipes is relatively low, and they are generally produced according to the tolerances specified in the standards. This kind of steel pipe is suitable for some general requirements, such as general structure, mechanical equipment manufacturing and so on. The dimensional accuracy of precision seamless steel pipe is relatively high, which can meet the strict tolerance requirements. This kind of steel pipe is often used in areas with high requirements for size, such as automobile manufacturing, aerospace, precision instruments and so on.
3. Surface quality:? In the cold drawing process of precision-tied seamless steel pipe, smooth outer surface and good inner surface finish can be obtained through multi-pass broaching and bright annealing process. However, compared with precision seamless steel pipe, its surface quality is lower. Precision seamless steel pipe adopts more advanced manufacturing technology and equipment, which can obtain higher surface smoothness and better internal and external surface quality.
4. Application field: Precision knotted seamless steel pipes are often used for mechanical processing and structural applications under some general requirements, such as general mechanical parts, hydraulic systems, automobile bearing sleeves, etc. ? Because of its high dimensional accuracy and good surface quality, precision seamless steel pipes are widely used in automobile manufacturing, aerospace, precision instruments, chemical equipment and other fields with high requirements on size and surface. There are differences between precision seamless steel pipe and precision seamless steel pipe in manufacturing technology, dimensional accuracy, surface quality and application fields. The choice of seamless steel pipe depends on the specific needs and usage scenarios. If you have any further questions about these two kinds of steel pipes, please feel free to ask.