Model 121

Some customers have especially stringent requirements, and they find that even the excellent performance of products such as the Airbond Model 113 is inadequate. They need precise splice spacing, automatic trimming, automatic pressure control, and blast duration control. A splicer meeting these requirements is already available in advanced-prototype form. This advanced prototype is fully-functioning, and is being evaluated by customers who wish to assess the performance of the concept. The final splicer is due to launch as a finished product by early Q4 2012.

The Airbond 121 is a completely new form of yarn splicer, with a number of advanced features. It has been designed to make splices of the highest quality in modern materials which demand excellent appearance and unmatched consistency.

  • Electronic control of splicing parameters
  • Multiple splicing chambers
  • An advanced cutting system

Why electronic control?
With conventional splicers, control of process parameters can be poor; not all splicers have controls for blast timing, and not all factories have good control of air pressure. With modern materials, splice variability must be reduced to a minimum. Reliable control of parameters such as blast pressure and blast time is therefore of great importance.

Why multiple splicing chambers?

  • Carbon fibre and glass fibre are strong in extension, but they are brittle in bending. Using multiple splicing chambers allows the splicer to operate at lower pressures, so that the fibres are not damaged.
  • Tough yarns such as aramids do not have the brittleness problem of carbon. However, the immense strength of aramids in extension poses problems. Using multiple splicing chambers allows the splicer to increase the levels of inter-filament friction – and therefore increase the strength of the splice.
  • Very large yarns and tows demand longer splice length. Using multiple splicing chambers allows us to increase the length of the spliced joint to suit the demands of the increased yarn count.

Why an advanced cutting system?
Carbon fibre and glass fibre are generally used in the form of tows – from perhaps 600 tex to 9600 tex, and above. Large tows, because of their size, are difficult to cut with conventional scissor systems. Aramid yarns are simply very difficult to cut, and they cause conventional scissor knives to go blunt very quickly. So an improved cutting system is needed both for large tows and for aramids.