Encapsulated tubular cable with colorized identification strap, and preparation method thereof

A preparation method of an encapsulated tubular cable with colorized identification straps, the encapsulated tubular cable comprises armored protection ducts and an encapsulation protection layer, wherein hollow passages are respectively formed in centers of the armored protection ducts;

• cables, optical fibers, or oil tubes are placed in the hollow passages;
• and the encapsulation protection layer wraps around the armored protection ducts;
• a plurality of armored protection ducts are arranged in the encapsulated protection layer;
• and an outer peripheral edge of each armored protection duct is provided with at least one colorized identification strap group;
• wherein the preparation method comprises:
• Step for preparing the armored protection duct, comprising:
• placing a steel roll raw material on a steel belt reeling equipment;
• passing a start end of the steel roll raw material through a steel duct forming equipment, a steel duct laser welding equipment, an external burr removing equipment, a steel duct drawing equipment, an annealing furnace, and a nondestructive flaw detection equipment in sequence to obtain the armored protection duct;
• and
• rolling up the armored protection duct by an armored-protection-duct reeling equipment for use in a next procedure;
• Step for preparing the encapsulation protection layer:
• placing the armored protection duct to be encapsulated on the armored-protection-duct reeling equipment;
• placing cables or oil tubes on a cable reeling equipment;
• passing a start end of the armored protection duct through a straightening equipment, a preheating equipment, an identification strap reeling equipment, an extrusion equipment, a cooling device, and a draw-off equipment to form the encapsulated tubular cable with the encapsulation protection layer;
• and
• rolling up the encapsulated tubular cable by an encapsulated-duct-cable reeling equipment.