Light Gauge Foil
P.D.S. FOILS manufactures light gauge converter foil with the following general specification. The final product specifications made as per agreed contract with the customers.
FOIL MATERIAL :
Aluminium alloy AA-1200 or AA 1235 conforming to Aluminium Association. Specification.
TEMPER :
Soft (fully annealed; ‘O’)
SURFACE :
One side matt and other side bright.
WINDING :
Bright side out or dull side out.
THICKNESS :
0.007 mm, 0.008mm, 0.009 mm and 0.012 mm
THICKNESS TOLERANCE :
± 8% over nominal thickness.
PINHOLE COUNT :
FOIL THICKNESS (MM) | AVERAGE PINHOLES (PER SQ. M) | MAXIMUM |
---|---|---|
0.007 | 400 | 700 |
0.008 | 200 | 500 |
0.009 | <100 | 200 |
0.012 | <50 | 150 |
On request, better pinhole count can be maintained.
WETTABILITY (SURFACE TENSION) :
A to C or to withstand 68 to 72 dynes (i.e. 70 ± 2 dynes) on either face of foil.
STICKNESS :
Material shall fall freely on 1.5 m length load.
SPLICING :
Shall be made of smooth ultrasonic welding through out the web width.
NUMBER OF SPLICING : | Average number of splices per roll shall not exceed 2 whereas maximum number of splices in a roll is 3 and the permissible frequency of occurrence will not exceed the limit shown below: | |
Consignment size having 3 splices
|
Maximum number of rolls
|
|
1-10 rolls
|
2
|
|
11-30 rolls
|
4
|
|
31-50 rolls
|
6
|
|
IDENTIFICATION OF JOINTS: | All splice joints will be flag marked for easy identification. | |
CORE MATERIAL: | Aluminium or Steel | |
CORE LENGTH & I.D.: | Flush or Protruded with 76 mm (+/-0.5 mm), 102 mm (+1.5/-0.5 mm) or 152 mm ID (+2.5 / 0.5 mm) | |
REEL OD: | 700 mm maximum | |
ROLL WIDTH: | 950 mm maximum ± 1 mm. | |
FINNING: | Finning caused by web misalignment shall not exceed 2 mm and shall not occur more than once in every three rolls | |
IDENTIFICATION: | Each reel is identified with a ticket having reel number, specification, operator number and manufacturing date. | |
PACKING: | Rolls individually wrapped, placed in top bottom combination wooden boxes with Silica Gel packets and making as specified by customer. | |
TEST CERTICATES: | Test certificate incorporate (a) Thickness (b) Width (c) Wettability and (c) Number of joints. Any other information sought by the customer can also be given |