Duplex stainless steel plasma anode nitriding surface strengthening technology
A duplex stainless steel, plasma technology, applied in metal material coating process, coating, solid diffusion coating and other directions, can solve the problems of reducing equipment working efficiency, inability to achieve three-phase separation, easy clogging of feeding system, etc. Achieve the effect of avoiding roughening damage, high hardness and short cycle
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[0018] Example 1:
[0019] A dual-phase stainless steel plasma anode nitriding surface strengthening process, and its technical scheme includes the following steps:
[0020] (1) Surface pretreatment of duplex stainless steel: The main process includes: first degreasing the duplex stainless steel with trichloroethylene solvent, then immersing and cleaning with industrial detergent at 90℃ for 10 minutes, and then washing with water at 93℃ After drying, the existing duplex stainless steel after surface pretreatment;
[0021] (2) Plasma-assisted anodic nitriding: The plasma-assisted anodic nitriding technology is used to modify and strengthen the surface of the ultra-low carbon duplex stainless steel disc, and the duplex stainless steel after the surface pretreatment described in step (1) Put it into the anode nitriding device, control the nitriding process parameters, argon partial pressure 0.5Pa, nitrogen partial pressure 500Pa, bias voltage 800V, nitriding temperature 250°C, nitridin...
Example Embodiment
[0023] Example 2:
[0024] A dual-phase stainless steel plasma anode nitriding surface strengthening process, and its technical scheme includes the following steps:
[0025] (1) Surface pretreatment of duplex stainless steel: The main process includes: first degrease the duplex stainless steel with ethyl hexanoate solvent, then immerse and clean the duplex stainless steel with an industrial cleaner at 83 ℃ for 15 minutes, and then wash with water at 70 Dried at ℃ to obtain the duplex stainless steel after surface pretreatment;
[0026] (2) Plasma-assisted anodic nitriding: The plasma-assisted anodic nitriding technology is used to modify and strengthen the surface of the ultra-low carbon duplex stainless steel disc, and the duplex stainless steel after the surface pretreatment described in step (1) Put it into the anode nitriding device, control the nitriding process parameters, argon partial pressure 0.05Pa, ammonia partial pressure 150Pa, bias voltage 200V, nitriding temperature 2...
Example Embodiment
[0028] Example 3:
[0029] A dual-phase stainless steel plasma anode nitriding surface strengthening process, and its technical scheme includes the following steps:
[0030] (1) Surface pretreatment of duplex stainless steel: The main process includes: first degrease the duplex stainless steel with acetone solvent, then immerse and clean the duplex stainless steel with an industrial cleaner at 70°C for 15 minutes, then wash with water, and dry at 93°C , Duplex stainless steel after surface pretreatment;
[0031] (2) Plasma-assisted anodic nitriding: The plasma-assisted anodic nitriding technology is used to modify and strengthen the surface of the ultra-low carbon duplex stainless steel disc, and the duplex stainless steel after the surface pretreatment described in step (1) Put it into the anode nitriding device, control the nitriding process parameters, argon partial pressure 0.3Pa, nitrogen and ammonia (volume ratio 2:1) partial pressure 0.5Pa, bias voltage 35V, nitriding tempera...
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