Optimization of Process Parameters for Vertical-Faced Polypropylene Bottle Injection Molding

Table 1

Orthogonal test of six factors and five levels.

Levels	Factors
	Melt temperature, A (°C)	Mold temperature, B (°C)	Injection pressure, C (MPa)	Injection time, D (s)	Dwell pressure, E (MPa)	Dwell time, F (s)
1	200	20	30	1.3	28	20
2	220	35	35	1.5	32	25
3	240	50	40	1.7	36	30
4	260	65	45	1.9	40	35
5	280	80	50	2.1	44	40