1. Application
This line adopts original 4-wheel continuous casting machine and the technology of continuous casting and rolling, to produce round Al rod with a diameter of12mm with 13rolling stands, 9.5mm with 15 rolling stands, 15mm with 11rolling stands. The continuous rolling machine has function of automatically feeding and rods stacking stop. To clean off the moisture on the surface of the al. Rod, a blower is fixed at the end of the guiding pipe. At the same time, a pinch-roller is installed to ensure a smooth delivery of the alloy rod. The arc guiding pipe is in a trolley-guiding construction to reduce the scratch upon the wire rods surface. The rod is coiled by means of centrifugal laying head. On the one hand, the al. Alloy is preformed before entering the collecting basket; On the other hand, the end of rod drops down into the basket automatically in case rod broken. Given the device of basket changing for wire rods accumulating, the rod coils are kept in order in collection basket to realize continuous coiling.
2. Brief technological process:
Melting furnace
Holding furnace
4-wheel continuous casting machine
Front haulage device
Rolling shear
Material feeding device
Continuous rolling machine
Coiling stand
Al. Alloy rod
3. Main technical:
3.1 4-wheel continuous casting machine
Dia. Of the crystallizing wheel: 1500mm
Section of ingot: 2380mm²
Casting bar speed: 7.6-15m/min
Rotating speed of wheel: 1.66_3.3r/min
Motor for casting machine: 5.5KW (Converter for speed regulation)
Cooling water pressure: 0.2-0.5Mpa
Cooling water consumption: 100t/(Inner cooling 40t/h, outer cooling 30t/h)
Cooling water temperature: 15-45C
Cooling water requirement: pH7-8, CaO content 20-50 PPM,
Conform to boiler water standard
Adding: Cooling water conform to above requirement should be prepared by users.
3.2 Front haulage device 5.5 KW
Gearbox 1 set
Transmission case 1 set
Cylinder 1 set
Base 1 set
3.3 Rolling shear
Base of Rolling shear 1 set
Gearbox 1 set
Transmission case 1 set
Putting device for hydraulic brake 1 set
Cutting blade 4 PCS
3.4 Continuous rolling machine
Type: 3 rollers
Dia. Of rod: 9.5mm 12mm 15mm
No. Of rolling stands: 15
Nominal roller dia.: 255mm
Max. Final rolling speed: V=6.2m/s
Center height: 852.5mm
Main motor power: DC 315KW
Oil box for gear: 3.5m³
Driving ratio between neighboring stands: 1: 1.25
3.5 Twin-coiler
Max. Dia. Of the coiler: 1800mm
Motor of centrifugal laying head 2.2kw
Trolley motor: 3 kw
Size of coiling basket 2100× 1400mm(height)
Coiling weight 1.5-2.5T
