Surface treatment method for improving metal oxidation toughness
An oxidation toughness and surface treatment technology, applied in heat treatment baths, heat treatment equipment, metal processing equipment, etc., can solve problems such as easy oxidation, improve surface activity, enhance flow, stress required for cracks and critical crack propagation stress. Effect
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Embodiment 1
[0028] A kind of surface treatment method that improves metal oxidation toughness of the present embodiment, comprises the following steps:
[0029] Step 1, the initial treatment of metal parts: put the metal parts and activated abrasive into the reaction kettle, then add the ethanol medium, and then stir at a high speed of 1000r / min for 30 minutes, after the stirring is completed, then superchemical treatment for 10 minutes , you can;
[0030] Step 2, salt bath treatment: put the metal parts into the salt bath furnace, then add the salt bath solution, the temperature of the salt bath is 500°C, and the time of the salt bath is 3 minutes;
[0031] Step 3, heat treatment: heat the metal parts at 600°C for 10 minutes first, then send them into the quenching furnace for quenching treatment, and finally temper, and finally water-cool to room temperature;
[0032] Step 4, oxidation pretreatment: the metal parts are first treated with corona, and then treated with cold plasma, alter...
Embodiment 2
[0042] A kind of surface treatment method that improves metal oxidation toughness of the present embodiment, comprises the following steps:
[0043] Step 1, the initial treatment of metal parts: put the metal parts and the activated abrasive into the reaction kettle, then add the ethanol medium, and then carry out high-speed stirring at a speed of 1500r / min for 40 minutes, after the stirring is completed, then superchemical treatment for 20 minutes , you can;
[0044] Step 2, salt bath treatment: put the metal parts into the salt bath furnace, then add the salt bath liquid, the temperature of the salt bath is 600°C, and the time of the salt bath is 6 minutes;
[0045] Step 3, heat treatment: heat the metal parts at 700°C for 20 minutes first, then send them into the quenching furnace for quenching treatment, and finally temper, and finally water-cool to room temperature;
[0046] Step 4, oxidation pretreatment: the metal parts are first treated with corona, and then treated wit...
Embodiment 3
[0056] A kind of surface treatment method that improves metal oxidation toughness of the present embodiment, comprises the following steps:
[0057] Step 1, the initial treatment of metal parts: put the metal parts and activated abrasive into the reaction kettle, then add ethanol medium, and then stir at a high speed of 1250r / min for 35 minutes, after the stirring is completed, then superchemical treatment for 15 minutes , you can;
[0058] Step 2, salt bath treatment: put the metal parts into the salt bath furnace, then add the salt bath liquid, the temperature of the salt bath is 550°C, and the salt bath time is 4.5min.
[0059] Step 3, heat treatment: heat the metal parts at 650°C for 15 minutes first, then send them into the quenching furnace for quenching treatment, and finally temper, and finally water-cool to room temperature;
[0060] Step 4, oxidation pretreatment: the metal parts are first treated with corona, and then treated with cold plasma, alternately twice;
...
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