TUBE DRAWING PRINCIPLES

摘要

YOU might not think that a hypodermic syringe and a large-diameter down-hole tube for oil exploration have much in common, but in fact they do. Tube producers often use tube drawing to change tube IDs, ODs, and wall thicknesses. Drawing also can improve the surface finish and refine the grain structure. Tubing is used in applications as varied as aircraft hydraulic lines, diesel fuel lines, thermocouple sheathing, chro-matography, and semiconductor manufacture. Tubular products for these applications often require close dimensional control, smooth and ultraclean ID surfaces, or other special properties. The correct drawing process can satisfy all of these requirements.