To solve the quality issues that rear quarter PVC residue interference with assembly shop installation, PVC material, nozzle temperature and robot application program are optimized as following. For PVC material, Relevant viscosity and yield value with the precondition of no influence to the tightness and appearance are increased; The nozzle temperature is reduced and the PVC residue amount is decreased; The gun on-and-off points of rear quarter are cancelled and two adjacent seams are combined to one big seam. The result indicates that the solutions above remove the PVC residue on rear quarter and avoid the PVC interference to assembly installation surface.

PVC residue  /  Material  /  Temperature  /  Robot program  /  Labor cost