1.Pipe/Tube ● Raw material inspection
Chemical test, hardness test, impact test, flattening test, tensile test, flaring test, bend test
● In-process inspection
Ultrasonic test, eddy current flaw detection, hydrostatic test, radiographic test
● Final inspection
Intergranular corrosion, PMI test, visual examination, dimension check, grain size, hardness test, pipe end check, bevel end check, Magnetic particle test, color coding check, packing
2.Fitting ● Raw material inspection
Chemical test, hardness test, impact test, flattening test, tensile test, flaring test, bend test
● In-process inspection
Ultrasonic test, eddy current flaw detection, hydrostatic test, radiographic test
● Final inspection
Visual examination, dimension check, PMI test, hardness test, Penetrant flaw test, Magnetic particle test, ultrasonic test, bevel end check, color coding check, packing
3.Flange ● Raw material inspection
Chemical test, hardness test, impact test, flattening test, tensile test, flaring test, bend test
● In-process inspection
Ultrasonic test, eddy current flaw detection, hydrostatic test, radiographic test
● Final inspection
Visual examination, dimension check, PMI test, hardness test, Penetrant flaw test, serration check, bevel end check, color coding check, packing
4.PV module ● Raw material inspection
BOM check (cell, bus bar, J-box, grass, back sheet, EVA, EPE, RFID, frame, glue and etc.)
● In-process inspection
Weld the cell, cover the EVA and glass, weld the bus bar, cover the EPE, cover the EVA and back sheet, visual inspection, EL inspection, lamination, trim the extra part of the EVA and back sheet, visual inspection, Install the frame, install the J-box, trim the frame area, enter the curing room, enter the cleaning room, IV test, EL test, Insulation resistance test, grounding resistance and dielectric test, do the last visual inspection, tag in the title and RFID, cover the lid of the J-box, packing
● Final inspection
Visual Inspection, dimension check, insulation resistance test, dielectric withstand test, Wet Leakage Current Test, EL testing, Robustness of terminations, Infrared Imaging for Hot Spots, performance at low irradiance related to STC condition, PID Withstand Test, LID Withstand Test, Temperature Co-efficient, Encapsulation gel content, back sheet Peel-off Test
