Screening the Main Factors Affecting the Wear of the Scraper Conveyor Chute Using the Plackett–Burman Method

Table 8

Response table for wear loss.

Run	Wear	A		B		C		D		E		F
No.	loss (mg)	-1	1	-1	1	-1	1	-1	1	-1	1	-1	1
1	49	49			49		49		49	49		49
2	2.8	2.8		2.8		2.8		2.8		2.8		2.8
3	53.8	53.8			53.8		53.8	53.8			53.8		53.8
4	130.9	130.9			130.9	130.9			130.9		130.9	130.9
5	164.3		164.3		164.3		164.3	164.3		164.3		164.3
6	223.1		223.1	223.1		223.1		223.1			223.1	223.1
7	1.5	1.5		1.5		1.5			1.5	1.5			1.5
8	271.2		271.2		271.2	271.2			271.2		271.2		271.2
9	108.4		108.4		108.4	108.4		108.4		108.4			108.4
10	137		137	137			137		137		137	137
11	5.1	5.1		5.1			5.1	5.1			5.1		5.1
12	59.2		59.2	59.2			59.2		59.2	59.2			59.2
Tatal	1206.3	243.1	963.2	428.7	777.6	737.9	468.4	557.5	648.8	385.2	821.1	707.1	499.2
Value	12	6	6	6	6	6	6	6	6	6	6	6	6
Average		40.5	160.5	71.5	129.6	123	78.1	92.9	108.1	64.2	136.9	117.9	83.2
Effect		120		58.1		-44.9		15.2		72.7		-34.7