Rolls for stainless steel tube are precisely machined, hardened cylindrical tools (or sets of tools) mounted in tube and pipe mills. Their primary function is to progressively shape, form, weld, and size flat stainless steel strip or skelp into a seamless or welded tube with precise dimensions, geometry, and surface finish.
Here’s a breakdown of their core functions in the manufacturing process:
Forming: In the initial stages, rolls gradually bend the flat strip into an open circular profile through a series of stands. Each roll set bends the metal a little more until the edges are ready for welding.
Welding (for welded tubes): In mills producing welded tubes (like TIG or high-frequency welded), specific rolls bring the edges together under pressure to prepare them for the welding process.
Sizing & Calibrating: After welding or for seamless tubes after piercing, another series of rolls for stainless steel tube compresses and precisely adjusts the tube's outer diameter to meet tight dimensional tolerances.
Controlling Geometry: They ensure the tube is perfectly round and straight, correcting any ovality or irregularities.
Surface Protection: For stainless steel, the roll surfaces are extremely smooth and hard to prevent scratching or imprinting on the tube's sensitive surface, which is critical for both aesthetics and corrosion resistance.
In essence, Rolls for stainless steel tube are the heart of the forming machinery. They directly translate the mill's mechanical action into the final product's quality, dictating dimensional accuracy, wall uniformity, surface integrity, and straightness. Their design, material (often high-grade tool steels or carbides), and maintenance are critical for efficient production and consistent output..
Contact Person: Ms Liu
Tel: +86-17736028207
Email: mirror.liu@hongqiroll.com
Web: www.hongqiroll.com
Address: Chenglang Section, Jicun Town
Yuanshi County, Shijiazhuang City, Hebei, China, 051131
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