Deplating method of carbon-based thin film on metal workpiece surface
A technology for metal workpieces and workpiece surfaces, which is used in the field of removing surface vapor deposition coatings to achieve smooth surfaces and avoid corrosion damage.
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Embodiment 1
[0027] Example 1: Decoating treatment after the diamond coating is prepared by the hot wire on the surface of the M2 steel test piece
[0028] An M2 steel test piece with a diamond coating about 2 microns thick on the surface, the sample is black, and the size is 100mmx30mmx2mm. It is known that the diamond coating is prepared by the hot wire method, and it is necessary to completely remove the coating to obtain a sample with a smooth surface.
[0029] A method for deplating a carbon-based thin film on a metal workpiece surface, comprising the following steps:
[0030] 1) Put the M2 steel test piece with surface coating into the aqueous solution containing 5wt% commercially available "Qiqiang" metal degreasing cleaning agent, after boiling for about 5 minutes, rinse the test piece with clean city water and dry it Dry; hang the M2 steel test piece with surface coating on the jig and put it into the vacuum system.
[0031] 2) Close the door of the vacuum chamber, and start the ...
Embodiment 2
[0034] Embodiment 2: The fading treatment after the diamond-like coating is prepared on the surface of the 316L watch case
[0035] The 316L case with a diameter of 38mm is coated with a matrix / Cr / CrC / a-C:H diamond-like coating, in which the surface diamond-like coating is 1.2 microns, and the metal and its carbide transition layer is 1.2 microns. Due to the preparation of the coating, the coating is partially peeled off, the surface is black-gray, and occasionally there are white spots that can be seen by visual inspection. It is necessary to remove the treated coating and then re-coat it.
[0036] A method for deplating a carbon-based thin film on a metal workpiece surface, comprising the following steps:
[0037] 1) Put the watch case into an aqueous solution containing 5wt% commercially available "Qiqiang" metal degreasing agent, boil for about 5 minutes, rinse the test piece with clean city water and dry it; hang the watch case on Put the vacuum system on the jig;
[00...
Embodiment 3
[0041] Embodiment 3: the stripping treatment of Ti / TiN / AlTiN / graphite coating prepared on the surface of H13 steel test piece
[0042] The surface preparation structure of the H13 steel test piece with a size of 100mmx30mmx2mm is Cr / CrN / AlTiN / graphite coating, the thickness of the black graphite coating on the surface is 0.8 microns, and the thickness of the transition coating is 2 microns; the edge is wiped with 1500 water sandpaper drop, exposing the substrate.
[0043] A method for deplating a carbon-based thin film on a metal workpiece surface, comprising the following steps:
[0044] 1) Put the test piece into an aqueous solution containing 5wt% of the commercially available "Qiqiang" metal degreasing agent, boil for about 5 minutes, rinse the test piece with clean city water and dry it; hang the test piece on the Put the vacuum system on the special jig;
[0045] 2)) Close the door of the vacuum chamber, and start the workpiece holder to rotate; the vacuum chamber is p...
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