18. Which step is the most important step in the production process of high-frequency welded round tubes? Why?

The most important process in the production process of high-frequency welded round tubes is high-frequency welding.
There are three reasons, first, the welding quality directly affects the product performance: the weld quality of high-frequency welding directly determines the strength and tightness of the pipe, which in turn affects the overall performance and service life of the product.
Secondly, the welding process is complex and difficult to control: high-frequency welding involves multiple factors such as precise control of high-frequency current, adjustment of welding speed, and maintenance of weld gaps, requiring highly specialized skills and experience.
In addition, the proportion of welding costs is relatively high: high-frequency welding equipment is expensive, and the energy consumption and labor costs in the welding process are also relatively high. Therefore, improving welding efficiency and quality is of great significance to reduce production costs.