Effect of Gap Size on Coating Extrusion of Pb-GF Composite Wire by Theoretical Calculation and Experimental Investigation

摘要

A new method using lead coated glass fiber to produce continuous wire for battery grid of electric vehicles (EVs)and hybrid electric vehicles (HEVs) was introduced. Under equal flow, both the maximum and minimum theoreticalvalue of gap size were studied and estimation equation was established. The experimental results show that the gapsize is a key parameter for the continuous coating extrusion process. Its maximum value ( H m a x ) is 0.24 mm and theminimum one (Hmin) is 0.12 mm. At a gap size of 0.18 mm, the maximum of metal extrusion per unit of time andoptimal coating speed could be obtained.