干式变压器铁芯涂料

 

Guangdong Hongfang Paint Co.,LTD

                 Paint-Test report

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Title: Paint JD148 and JM-486/RAL 5009 on core sheets

Core sheets supplier: Siemens Transformer(Guangzhou)Co.Ltd

Paints supplier:Hongfang paints with Primer JD-148 and Varnish JM-486

Type of Task: Check out the stability and fixity of the primer and the varnish on the surface of core sheet.

Test-Arrangement:

Drying up after painting-7 days

Thickness of the layers: One layer of primer JD-148  (DFT  60μm) and two layers of the varnish JM-486/RAL5009 (DFT  160μm).

Test 1: Heat testHeat up to 190℃ for 432h

Test 2: Moisture testStored at 40and 98% humidity for 7 days.

Test 3: Salt fog testStored at salt fog (H2O+5% NaCl/ 35) for 720h

Result of examination:

Test 1:Some samples are stored in the oven at 190 and checked after 432h.

Conclusion of Test 1:

The grade of changing color of the varnish>>>0.K.

No damages on the varnished surfaces of test samples>>>0.K.

The grid-cuts(10×10 lines with 3 mm distance) on the test core sheets are 0.K

Test 2:

Some samples are stored in a climate chamber for 7 days at 40 and 98% humidity  and checked after 7 days.

Conclusion of Test 2:

No damages on the varnished surfaces of test samples>>>0.K.

The grid-cuts(10×10 lines with 3 mm distance) on the test core sheets are 0.K

Test 3:

Some samples are stored at salt fog (H2O+5% NaCl/ 35) for 720h and checked after 720h.

Conclusion of Test 3:

No damages on the varnished surfaces of test samples>>>0.K.

The grid-cuts(10×10 lines with 3 mm distance) on the test core sheets are 0.K.

 

 

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