| Popis: |
PC/ABS is widely used in the vehicle interior, electronic parts and accessories. The study of low cycle fatigue properties have been performed on injection molded samples of PC/ABS blend. The experimental results indicated that the optimum conditions of the fatigue property are melting temperature 200°C, filling time 6 s, and mold temperature 65°C. There has a transition point in the condition of filling time. When the strain amplitude is higher than 0.0118 mm/mm, filling time 6 second has best fatigue properties. By scanning electron microscopy, near the crack initial area, the mechanics of fracture surface are like short and fine fiber. The surface has long fiber ductile fracture, which far away from crack initial area. |
