Wear-resistant protective coating, its preparation method and application
A protective coating and coating technology, applied in the field of wear-resistant protective coating, can solve problems such as lack of research on VCN coating, and achieve the effects of improving comprehensive performance and service life, improving bonding performance, and good application value
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[0041] Another aspect of the present invention provides a method for preparing the wear-resistant protective coating, see figure 1 Shown, described preparation method comprises:
[0042] S1. Deposition of a hard V transition layer:
[0043] Using arc ion plating technology, a hard V transition layer is deposited on the surface of stainless steel mechanical movement foundation parts and other substrates;
[0044] S2. Deposition of VCN coating:
[0045] Using arc ion plating technology, continue to deposit VCN coating on the surface of the substrate with the hard V transition layer.
[0046] In some embodiments, the step S1 includes: using an arc ion plating system to pre-deposit the hard V transition layer on the surface of the stainless steel mechanical movement base; the target metal V target used, the vacuum degree of the base of the reaction chamber ( 3~6)×10 -3 Pa, the working atmosphere is Ar, the flow rate is 350-450sccm, the working vacuum is 0.2-0.5Pa; the depositi...
Embodiment 1
[0070] The substrate is a stainless steel gear in the mechanical parts, and the specific steps of the preparation method of the wear-resistant protective coating are as follows:
[0071] (1) Pre-plating treatment
[0072] Put the stainless steel gear base in petroleum ether, and clean it with ultrasonic stirring for 30 minutes. After removing the oil stain on the stainless steel surface, put it in acetone and ultrasonically clean it for 20 minutes, then ultrasonically clean it in absolute ethanol for 15 minutes, and finally take it out and dry it with nitrogen;
[0073] (2) Bias reverse sputter cleaning
[0074] Put the above treated stainless steel gear into the chamber, heat the temperature of the reaction chamber to 350°C, and pre-evacuate the back to 4.00×10 -3 Pa. Enter high-purity Ar (purity ≥ 99.99%), flow rate 100sccm, turn on V target (purity ≥ 99.5%) DC power supply, set the target current to 60A, and continuously bombard stainless steel under the bias voltages of ...
Embodiment 2
[0085] The substrate is a stainless steel-based sealing ring in key marine components, and the specific steps of the preparation method of the wear-resistant protective coating are as follows:
[0086] (1) Utilize the method for embodiment 1 step 1 to implement pre-plating treatment to the stainless steel-based sealing ring;
[0087] (2) Utilize the method for embodiment 1 step 2 to implement bias reverse sputtering cleaning to the stainless steel-based sealing ring;
[0088] (3) Utilize the method for embodiment 1 step 3 to deposit hard V transition layer to stainless steel-based sealing ring;
[0089] (4) An arc ion plating system is used to deposit a VCN coating on the surface of the stainless steel-based sealing ring of the above-mentioned deposition V transition layer. The target material used is 6 metal V targets (purity ≥ 99.5%). Under the continuous vacuum coating state, The base vacuum of the reaction chamber is maintained at 4.5×10 -3 Pa, cut off the inflow of Ar, ...
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Abstract
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