08315 Various tests of mobile phone surface decoration test: 1. Friction test (Abrasion Test - RCA) Test environment: room temperature. Test method: Fix the mobile phone shell on the RCA test machine and rub it with 175g force for 300 cycles. Inspection standard: The wear-resistant coating cannot fall off and the base material texture cannot be exposed. 2. Adhesion test (Coating Adhesion Test) Test environment: room temperature Test method: Use a grid knife to carve out 100 1 square millimeter squares, and the depth of the grid is until the base material is exposed, and then use 3M610 tape to stick it on the square surface, and quickly tear it off at a 90-degree angle after 1 minute, and check the paint on the square surface. Inspection standard: The paint falling off on the square surface should be less than 3%. Test environment: 60 oC, 90%RH Test method: Place the filter paper in an acidic or alkaline solution to fully soak it, use tape to stick the filter paper soaked in acidic or alkaline solution to the painted surface of the mobile phone shell, and ensure that the test paper is in full contact with the painted surface of the mobile phone shell, and then place it in the test environment. After 48 hours, take the mobile phone shell out of the test environment, and after leaving it for 2 hours, check the surface of the mobile phone shell. Inspection standard: There is no abnormality such as discoloration, peeling, shedding, fading, etc. on the painted surface. 3. Hardness Test Test environment: Room temperature Test method: Use a 2H pencil, at a 45-degree angle, with a force of 1Kg to draw a 3~5cm long line on the surface of the case and the lens cover. Inspection standard: After erasing the pencil marks with an eraser, there should be no scratches left. 4. Lens Scratch Test Test environment: room temperature Test method: use a cotton cloth to act on the surface of the phone\'s outer screen lens cover with a force of 1 kg, the contact surface is a circle with a diameter of 10 mm, reciprocate 20,000 times, the stroke is 20 mm, and the speed is 30 times/minute. Inspection standard: There are no obvious scratches on the surface of the lens cover, and the transparency does not change. 5. UV illuminant test Test environment: 60° C Test method: Directly expose the oil under the temperature of 60°C and the ultraviolet light of 340W/mm2...
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