Copper Bronze Brass Sheet Strip Cold Rolling Mills Rough Or Fine Rolling

Copper Bronze Brass Sheet Strip Cold Rolling Mills

Copper (Bronze, Brass) Strip Rolling Process:

• From hot rolling and cold rolling, hot rolling from billet down to around 15mm thickness,
• the copper cold rolling mill will be first rough rolling mill to get around 3mm sheet,
• then fine rolling mill makes copper strip and even copper foils.

Copper strip Reversible Cold rolling Mill can be 4-Hi or 6-Hi to realize rough rolling, fine rolling and foil rolling copper strips.

Take 16mm input reducing down to 1.5mm as example:
16mm-10mm-7mm-5mm-4mm-3.6mm(annealing)
4mm-2.4mm-1.7mm-1.5mm, total 8passes rolling

4Hi Hydraulic Reversible Cold Rolling Mill Specification

Coil strip grade:
Copper (C110/C120/C122/C144),
Yellow Brass (C260/C268/C272),
Red Brass (C230/C220/C210)
Bronzes (C510/C511/C519/C521/C524).

Input coil strip: 12～16×450～660mm
Output coils: 0.8～1.5×450～660mm

Thickness reduction per pass: Max 40%δ
Average thickness reduction per pass: 30%
Total thickness reduction per rolling after once annealing:≤90-95%δ
Thickness reduction to interim annealing: ~75%
Tension control precision: ≤5‰, thickness control precision: ≤土0.005mm

Copper Coils:
Max outer diameter:1200 mm
Inner diameter:raw material coils:500mm  recoiling ID:508 mm
Max coil weight:5t

Max rolling force:7000 KN
Rolling torque:70 KN.m
Rolling speed:max 240 m/min
Recoiling speed:max 260 m/min
Recoiling force:70 KN
 

Copper(bronze, Brass) and copper alloy Strip plates are widely used in industries of electronics, automobiles, electricity, home appliances, etc.to make parts like electric elements, light holder, battery cap, buttons, seals, li-ion battery, etc.

Copper (Bronze, Brass) and copper Alloy Strips Specification