Distribution of material in an injection-molded container
| Title |
Distribution of material in an injection-molded container |
| Publication year |
1999 |
| Language |
English |
| Author |
Aasetre, Sveinung (Norner) |
| Co-Authors |
Andreassen, Erik |
| Source |
Annu. Tech. Conf. - Soc. Plast. Eng.,1999, 57/3, 3931-3935 |
| Abstract |
The distribution of material (weight) in an injection molded container was quantified by cutting the container precisely into segments. Molding conditions were varied, and different polypropylene grades were used. The material distribution remained nearly uniform when increasing the packing pressure. Increasing the packing time above a certain limit, however, mainly packed material close to the gate. The material distribution was also affected by material parameters such as melt flow rate and nucleation. The shrinkage and the compressive strength of the container were related to the material distribution. |