Method for characterizing colors of passivation film
A passivation film and color technology, applied in the direction of color measurement devices, etc., can solve the problems of appearance color recording and contrast obstacles, low work efficiency, errors, etc., to improve passivation work efficiency and accuracy, and reduce unqualified batches , the effect of improving work efficiency
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Embodiment 1
[0023] A method for characterizing the color of a passivation film, comprising the following steps:
[0024] (1) Select three passivated workpieces prepared under the same passivation process conditions, and age them in the greenhouse for 24 hours for standby;
[0025] (2) In step (1), a point is randomly selected on the passivation film of each passivation workpiece as a standard point, and the standard point is named Standard0, and its L, a, and b chromaticity values (L* 0 、a* 0 、b* 0 ); on the same passivated workpiece, 5 points are uniformly selected as test points at other positions except the standard point, and their L, a, and b values are measured with a spectrophotometer (L* n 、a* n 、b* n ),Such as figure 1 As shown, the position of 0 is the standard point, the positions of 1, 2, 3, 4, and 5 are the test points, and the test points are respectively named Sample1, Sample2, Sample3, Sample4, and Sample5;
[0026] (3) Compare the chromaticity value of step (2) ...
Embodiment 2
[0039] A method for characterizing the color of a passivation film, comprising the following steps:
[0040] (1) Select 4 passivated workpieces prepared under the same passivation process conditions, and age them in the greenhouse for 24 hours for standby;
[0041] (2) In step (1), a point is randomly selected on the passivation film of each passivation workpiece as a standard point, and the standard point is named Standard0, and its L, a, and b chromaticity values (L* 0 、a* 0 、b* 0 ); on the same passivated workpiece, 6 points are uniformly selected as test points at other positions except the standard point, and their L, a, and b values are measured with a spectrophotometer (L* n 、a* n 、b* n ), n is 6, such as figure 2 As shown, the position of 0 is the standard point, the positions of 1, 2, 3, 4, 5, and 6 are the test points, and the test points are respectively named Sample1, Sample2, Sample3, Sample4, Sample5, and Sample6;
[0042] (3) Compare the chromaticity ...
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