Armoured cable packed in cold rolled steel strip

Armoured cable packed in cold rolled steel strip, 1) Hot rolled steel strip cold rolled, mainly for processing of cable armoring layer painted steel strip and galvanized steel strip and tin plating steel belt. Armored cable with cold-rolled steel belt within a distance of 30 m steel lead the end the allowable deviation of thickness, can exceed 25% of the standard specified value. ( 2) With cold rolling with armored cable size, size deviation, rocker and roughness should be allowed to meet the YB/T 024 & ndash; 2008 standard. ( 3) Armored cable with cold rolling with the mechanical properties, tensile strength should be no less than 300 N/was, the elongation shall be not less than 20%. ( 4) The appearance of the armored cable with cold-rolled steel belt and surface requirement: steel strip surface allows dark grey thin oxide layer, thickness of no more than half of the allowed tolerance of convex, concave, bean marks, scratches, and individual scarring. The bright annealing of steel strip, the surface should be in silver. Steel strip edges must not have tear, Broken edges) And rough burr, but allow no greater than the thickness tolerance 1/4 of burr. ( 5) Armored cable with cold ritual steel belt length: in order to ensure armored cable with painted steel, galvanized steel, tin steel belt length, reduce joint, roll the supply of steel strip, the inner diameter of the coil shall be 175 mm & plusmn; 10 mm or 200 mm± 10 mm, outside diameter shall be not less than 400 mm.