Aluminium Foil for adhesive tape 1235 O two sides bright ID 76
One side bright or two sides bright
Material: Aluminium foil
The surface should be clean and flat with no defects of corrosive
stain,wrinkle & bruise.But it's allowable to keep the ripple
mark and impress nick on the surface if they have no effect on
Surface of O temper should be no oil or oil stain. The wettability
should be above B grade or determined by the negotiation of both
The splice should be welded by ultrasonic(≤0.03mm) or sticked
firmly by adhensive tape(＞0.03mm) which can endure high temperature
. The spice should have obvious marks at the two sides . The splice
No.should accord with the following form
|Thickness (mm)||Max No.of Splices per coil|
Foil coil should entwine properly. Transection should be flat,
clean, with smooth edge, and without defects of serious burr,
arrow, pyramid ,etc which can affect usage. The telescoping isn't
allowed above ±1mm.
The core should have a protrution ( ≤ 5mm).And the Al coil should
entwine at the middle of the core.
The Alloy ,Temper ,Mechanical performance should comply the
|Alloy||Temper||Thickness mm||Mechanical performance|
|Tensile (σb, Mpa)||Elongation(δ,% )|
Note: If the users have special requirments, the negotiation of
both sides is essential.
The specification and corresponding tolerance shall comply the
|Gauge mm||tolerance %||width mm||tolerance mm||OD mm||tolerance % mm||core ID mm|
The chemical composition should comply the following table.
|1235||Si+Fe:0.55||0.1||0.05||0.05|| || ||0.05||V:0.05||0|| ||0.03|| ||99.45|| |
|Note: The content with upper and lower limits is alloy element.If
the content is a singal figure,for aluminium it is the lowest
limit,for other element the uppest limit.|
|For the chemical composition ,the poisonous should comply the
regulation of the following one and|
|GB 11333. Pb≤0.01%, Cd≤0.01% ,As≤0.01%.|
The surface demands
The pinholes that can be seen by bare eyes on light are allowable
on the surface.But the ones shouldn't be dense and linear. It's not
allowable to have a sliver of holes which can cause strip breaks.
The Al foil pinholes No.should accord with the following form.
|Thickness (mm)||Pinholes No. per square meter|
|If the users have special demands about pinholes,the negotiation|
|of both sides is essential.|