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Tube Mill Forming Section

The forming section of a stainless steel tube mill is a critical process in the production of stainless steel welded tubes. It is responsible for gradually bending stainless steel strips (such as 304, 316, etc.) into circular, square, or other specified cross-sectional shapes through a series of forming rollers, creating tube blanks for subsequent high-frequency welding, sizing, and cutting processes. The unique properties of stainless steel, such as high strength, corrosion resistance, and surface finish requirements, demand stringent precision in the forming process and equipment.


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Brand:
Hangao

Product Description

Stainless Steel Strip Feeding: The stainless steel strip is uncoiled and fed into the forming section. The strip undergoes surface inspection to ensure it is free from scratches, oxide scales, or other defects.
Edge Preparation: The strip edges are pre-bent or trimmed to optimize welding quality and minimize weld imperfections.
Initial Forming: The strip is passed through multiple sets of high-precision horizontal and vertical rollers, gradually bending it into an open tubular structure. The roller design is tailored to the strip’s thickness and tube diameter to accommodate the high yield strength of stainless steel.
Fine Forming: Subsequent sets of forming rollers further refine the tube blank’s shape, ensuring roundness, straightness, or specific cross-sectional shapes meet standards. Precise control of roller spacing and angles is critical to prevent stress concentration or surface damage to the stainless steel strip.
Initial Sizing: The tube blank undergoes preliminary sizing through initial sizing rollers, correcting dimensions and improving roundness and diameter accuracy to provide a stable foundation for subsequent processes.
Precision Sizing: Precision sizing rollers further adjust the tube blank’s dimensions, ensuring geometric accuracy and surface quality meet final design requirements.
Tube Blank Output: The formed stainless steel tube blank is transferred to the welding section for seam closure.