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Shijiazhuang Faith Machinery Co., Ltd. produces mechanical steel tube mills designed for manufacturing tubing used in structural, mechanical, and precision applications. These tubes are characterized by their dimensional accuracy, consistent wall thickness, and reliable weld integrity, which are essential for components in automotive, machinery, and furniture manufacturing.
The design of a mechanical tube mill places a strong emphasis on stability and precision throughout the forming process. The mill structure is engineered to be rigid, minimizing vibration and deflection during high-speed operation. This ensures that the tube geometry remains consistent from the start to the end of a production run. The forming rolls are manufactured from high-grade alloy steels and are often hardened and ground to a precise finish to resist wear and maintain their profile over extended use.
A key feature of these mills is the sizing section. Unlike mills for less critical applications, a mechanical tube mill typically incorporates multiple sizing stands. These stands apply gradual and controlled pressure to the welded tube, bringing it to its exact final dimensions and ensuring exceptional roundness or squareness. This process also work-hardens the surface slightly, contributing to the tube's mechanical properties.
The welding process for mechanical tubing is closely monitored. High-frequency induction welding is often employed for its ability to create a clean and consistent weld seam. The control system allows operators to fine-tune parameters like welding speed, power, and vee-length to suit different carbon steel grades and wall thicknesses. Post-weld heat treatment systems may be integrated to normalize the weld zone, ensuring its mechanical properties are comparable to the parent metal.
Shijiazhuang Faith Machinery configures these mills to handle a range of carbon steels, including low-carbon and medium-carbon grades. The flexibility to produce various shapes and sizes, from small-diameter precision tubes to larger structural hollow sections, makes this type of mill a versatile asset for fabricators supplying multiple industries.
