Coating Oxidation Coloring and Electrostatic Spraying Process

2Product inspection21 The test methodthe test of the membrane layer performance and should be carried out 24 hours after the coating is solidifiedaCoating thickness monitoring method:to use a membrane detector to monitor the thickness of the coating filmbCoating impact-resistant test method:using a punch diameter of 16mm, the hammer is placed at a suitable height free fall, direct impact of the coating surface, so that it produces a depth of 2.50.03mm pit, observe the coating changescCoating adhesion test method:on the surface of the coating, the spacing is 2mm, and then with tape paste to tear, to see if the coating fell offdThe cup burst test methodpush the specimen at a constant speed of 0.2-0.1mm per second with the spherical top of the punch until 0.750.05mm is specified to observe whether the coating had fallen off or separated from the profile 2 2 Inspection equipment a ED-200 vortex thickness gauge b Impact tester c Cup burst experimenter d 4x magnifying glass (for observation) 2 3 test results
according to the aluminum alloy powder spray profile national inspection standards, crystal cover light aluminum profile can fully meet the requirements of use test results such as chart: crystal mask light profile product test table
test item sample 1 sample 2 sample 3 membrane thickness detection (measurement value) 50.8um57.4um52.6um adhesion detection of no film layer shedding phenomenon, coating has been crystal clear, transparent high film layer no fall-off membrane layer
loss-resistant membrane test Layer without fission film layer no fission cup burst experimental membrane layer without fission, coating and formation is not separated, 0-stage membrane layer without fission, 0-stage membrane layer without fission, coating and layer no fission, 0-level the product quality during use did not appear quality problems, after a year of testing, the surface is still clean and transparent, detection for 0 No fading, skining phenomenon, its membrane layer than electrophoresis paint film thickness is still high, the cost is basically the same, and organic oxidation-spray production line combined to avoid isolated production of equipment 3, general quality problems to deal with the the quality problemiscause of production control is mostly caused by lax production control, the main problems such as table: matte 1, profile light is not bright
; Poor performance adhesion difference 1, paint quality problem; 2, spray hanging before oxidation coloring film hole is all closed; 3, profile surface is contaminated; 4, drying temperature is too low, the time is too short oxidation does not color 1, poor conductivity; 2, coloring tank liquid temperature is low, tank liquid failure; 3, coloring machine problems; 4, oxidation film thickness is too low
4, conclusion the crystal light aluminum profile production process must be more complex In order to produce high standard products, accepted by customers