Other Metal Strip & Sheet Processing

Beyond copper foil and copper strip, nickel strip, titanium strip, cobalt-chromium alloy strip, aluminum strip, and hot-rolled/cold-rolled steel strip constitute another major category of metal strip and sheet materials, serving power batteries, chemical equipment, medical implants, packaging and construction, and structural steel applications respectively.

Nickel strip surface must be free of rolling-oil residue and oxide discoloration to ensure weldability and conductivity. Titanium and cobalt-chromium strips demand exceptionally high surface roughness control and cleanliness—medical-grade titanium and cobalt-chromium implants must be free of scratches, inclusions, and thermal discoloration. Aluminum strip requires uniform matte or mirror finishes after finishing, while hot-rolled and cold-rolled steel strip must be descaled and derusted to meet subsequent coating or deep-drawing requirements.

These materials vary widely in hardness. Titanium and cobalt-chromium are difficult-to-machine alloys prone to galling and thermal discoloration during grinding. Aluminum is soft and easily loaded with abrasive grains, causing scratches. Steel demands high-efficiency descaling, so grinding solutions must match abrasive type and pressure to the material characteristics.

Lean Abrasives's high-precision sanding belts are suitable for continuous finishing lines across various metal strips. Silicon carbide grit is recommended for aluminum and cold-rolled steel to achieve uniform brushed or matte surfaces, while zirconia or ceramic grit is used for titanium and cobalt-chromium strips to suppress loading and overheating.

Non-woven polishing brushes and nylon roller brushes are used for in-line brushing on strip cleaning lines, removing oxide films and rolling residues. The flexible grinding structure prevents deep scratches on soft aluminum strip, and provides consistent roughness control on hard alloys such as titanium and cobalt-chromium.

Polishing wheels are used for local mirror finishing on strips or coils. Flap wheels, sanding discs, and abrasive discs handle weld dressing, edge rounding, and sample trial grinding. Diamond grinding wheels are used for periodic precision dressing of rolls for hard alloys such as titanium and cobalt-chromium. Scouring pads and sanding paper meet manual wiping and small-area touch-up needs.

The supporting grinding workstation can adjust strip feed speed, grinding pressure, and cooling method according to material type. Wet cooling is applied to aluminum and steel strips to prevent overheating, while low-pressure fine grinding is used for titanium and cobalt-chromium strips to avoid surface burning, ensuring surface consistency across multi-variety, small-batch production.