6251 polyimide film F46 - 6251

Standard: GB/T13542.6-2006
Application: This product is compounded tape by one-sided or two-sided film coated with F46 gum, finished products is after dry and cutting. This tape is applicable to electrical winding wire with class H insulating materials and the half minutes melting to shape at 350-380℃when application.
A. Technical requirements
1. Appearance: Tape dry and level off, without bubble and the impurities.
2. Size
2.1. Length: Each volume tape on the one dish or roll, its length not less than 300 m, joints number are not more than three, the shortest length of each volume not less than 10 m.
2.2. Width: The width of the tape and its allowable deviation is 10m +/- 0.4 mm,
15m + /-0.4 mm, 20m + /-1 mm, 25m + /-1 mm, other width specifications of the tape to be supplied according to user’s needs.
2.3. Thickness: Tape nominal thickness and its allowable deviation
Thickness(um) 33 35 38 40 50 65
Allowable deviation(um) ±1 ±1 ±1 ±1 ±2 ±2
Note: according to customer's demand supplying various thickness of the tape, allowable deviation is plus or minus 0.003 mm. or according to user needs supplies tapes.
3. Performance requirements
Serial number Item name Unit Index
1 Tensile strength MPa
%
　
N/25mm
　 ≥80
≥35
　
10.0
6.0
2 Elongation at break
3 Stripping force ≥
Tape一Tape
Tape一Copper
4 Electric strength v/um ≥140
5 Surface resistance Ω ≥1.0X1014
6 Volume resistance Ω.M ≥1.0X1010
7 Relative permittivity 48～62Hz - 3.5±0.4
8 Dielectric power factor 48-62 Hz ac - ≤4.0X10-3
Note: For No 5 and 6, to be tested before cutting.
B. Packing, Mark, Storage and transportation
1．Tape should be wrapped in 40 mm diameter of pipe around on core, then packed in plastic bag, sealed opening, then into moisture proof wooden cases or dry clean cartons.
2.Each packing should have with product test report and quality certificate, indicate product name, specification, batch number, gross weight, net weight, production date, name of the manufacturer, and "Moisture Proof" "Prevent Impact" and other words on the cases or cartons surface.
3. The tape from the date of production can be saved half a year, and expired products need to inspect again according to this testing standard, after passing inspection can still use.
4. Tape should be stored in a dry, clean, avoid light, ventilated warehouse.
5. Adhesive tape when transportation, should avoid light, moisture-proof, shall not be heavy pressure, throw and mechanical damage.