Pre-Finishing Mill Unit
Pre-Finishing Mill Unit
Equipment composition and use: Pre-finishing mill type: cantilever mill,rack number: 4 stands. Horizontal mill (2 stands), Vertical Looper (3 sets), vertical mill (2 stands), safety cover. Layout and Transmission mode: H-V-H-V, (DC) motor individual drives.
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Product Description
Pre-Finishing Mill Unit Equipment Composition and Use
Pre-finishing mill type: cantilever mill, rack number: 4 stands.
Horizontal mill (2 stands), Vertical Looper (3 sets), vertical mill (2 stands), safety cover.
Layout and Transmission mode: H-V-H-V, (DC) motor individual drives.
Pre-Finishing Mill Unit Main technical performance parameters of the equipment
1. Process parameters
(1) The specification of the entry rolling piece of the first stand: 28～31mm
Specification of the fourth outlet rolling stock: 16～20mm
(2) Rolled steel types: plain carbon steel, high-quality carbon steel, low alloy steel, welding rod steel, riveting steel
(3) Rolling temperature: 900～1050℃
(4) Maximum rolling force: ~240kN
(5) Maximum rolling torque: ~6.2kN·m
(6) Roller center distance: 255mm～291mm
(7) Roll gap adjustment: 18 mm
(8) Working pressure of roller installation: 40MPa
(9) Working pressure of unloading roll: 60MPa
(10) Roll cooling water
Consumption: 4×20 t/h Water pressure: 0.6MPa Water inlet temperature: <30℃
(11) Lubrication method
The rolling mill and reducer are all lubricated with thin oil.
Oil pressure: Lubrication point pressure 0.15~0.25MPa Total consumption: 400 l/min
Oil quality: Mobil 533
Fine filter: 25μ
The transmission parameter table of pre-finishing mill
Machine type
Size
stands
Tungsten carbide roll ring size Фmm
Max. rolling forceKN
Max. Rolling torque KN.M
Rolling speed m/s
Trimmed size Фmm
Speed ratio
Motor
4stands
type
Power KW
Revolving speed r/min
90m 135m/sФ285 H cantilever roller ring structure unit
1HФ285
285/255×95
280
7.4
8
8
1.5
DC
450/600
600/1200
2VФ285
285/255×95
133.6
5.0
8
8
1.24
DC
450/600
600/1200
3HФ285
285/255×95
153
4.2
8
8
1.15
DC
450/600
600/1200
4VФ285
285/255×95
95.9
3
40
30
94
DC
450/600
600/1200
