Preparation method for hydrogen-resistant coating on surface of zirconium hydride
A technology of zirconium hydride and hydrogen resistance, applied in the direction of surface reaction electrolytic coating, coating, electrolytic coating, etc. Significant hydrogen effect, good compactness, good hydrogen precipitation effect
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Embodiment 1
[0037] ZrH 1.8 Cut the raw material into Φ20mm×2mm thin slice samples. Use 360#, 600#, 800# and 1000# SiC water sandpaper to mechanically polish the surface and edges of the sample step by step; place the sample in an acetone solution for ultrasonic cleaning for 10 minutes, and then clean it with deionized water to remove residual residues on the sample surface. Acetone solution, dry.
[0038] Such as figure 1 As shown, a WHD30 power supply 1 is added to the stainless steel electrolytic cell 3, and the sample 1 of zirconium hydride is placed as an anode in the stainless steel electrolytic cell 3 filled with electrolyte for micro-arc oxidation treatment. There is a thermometer 7 in the stainless steel electrolytic cell 3 The temperature is indicated, and the stirrer 4 controlled by the motor 6 is used for stirring, and the stainless steel electrolytic cell 3 is passed with circulating water 5 . Adjust the concentration of sodium hydroxide in the electrolyte to 0.5g / L, the co...
Embodiment 2
[0041] ZrH 1.8 Cut the raw material into Φ20mm×2mm thin slice samples. Use 360#, 600#, 800# and 1000# SiC water sandpaper to mechanically polish the surface and edges of the sample step by step; place the sample in an acetone solution for ultrasonic cleaning for 5 minutes, and then wash it with deionized water to remove residual residues on the sample surface. Acetone solution, dry.
[0042] Zirconium hydride is used as an anode and placed in a stainless steel electrolytic cell filled with electrolyte for micro-arc oxidation treatment. Adjust the concentration of sodium hydroxide in the electrolyte to 10g / L, the concentration of sodium polyphosphate to 2g / L, Na 2 EDTA concentration is 4g / L. The parameters of the micro-arc oxidation power supply are set as follows: positive voltage is 500V, negative voltage is 400V, frequency is 500Hz, processing time is 60min, and the temperature of the micro-arc oxidation electrolyte is controlled at room temperature. A mixed solution of ...
Embodiment 3
[0045] ZrH 1.8 Cut the raw material into Φ20mm×2mm thin slice samples. Use 360#, 600#, 800# and 1000# SiC water sandpaper to mechanically polish the surface and edges of the sample step by step; place the sample in acetone solution for ultrasonic cleaning for 20 minutes, and then clean it with deionized water to remove residual residues on the sample surface. Acetone solution, dry.
[0046] Zirconium hydride is used as an anode and placed in a stainless steel electrolytic cell filled with electrolyte for micro-arc oxidation treatment. Adjust the concentration of sodium hydroxide in the electrolyte to 2g / L, the concentration of sodium polyphosphate to 16g / L, and the concentration of Na 2 EDTA concentration is 2g / L. The parameters of the micro-arc oxidation power supply are set as follows: the forward voltage is 400V, the negative voltage is 150, the frequency is 200Hz, the processing time is 30min, and the temperature of the micro-arc oxidation electrolyte is controlled at r...
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