Productivity Savings in the Manufacture of Copper and Aluminium Stranded Conductors Using the Roll Forming Double N^Twist ProcessCeeco Bartell Products, Bartell Machinery Systems LLC, Canada

摘要

The production of power cable incorporating double twist machines is a rapidly expanding area. This is due in no small part to the economic advantages and product flexibility of using this type of machine, especially when coupled with the technology of Ceeco Bartell's patented roll form process. Double twist machines produce similar products to those manufactured on bobbin stranders. The five main advantages that double twist machines have over alternative methods of manufacture are: 1. Low capital investment when compared to tubular and rigid stranders. 2. Very high production speeds 3. Reduced space requirement 4. The use of large capacity static input devices with continuous pay-off capability. This gives minimum machine downtime. 5. Reduction in number of wire sizes required using the Ceeco Bartell patented roll-forming process. 6. Material cost savings due to Unilay construction and accurate strand diameter control. The different types of stranding have been listed in Table 1, taking into account cost/twist, lay limitations, layer limitations, typical payoff package and payoff mode.