A processing method of austenitic stainless steel for construction
A technology of austenitic stainless steel and processing method, applied in the direction of metal material coating process, solid diffusion coating, coating, etc., can solve the problems of plastic deformation, stress corrosion cracking, high cost, and achieve yield strength and tensile strength. The effect of improving and improving surface hardness and strong corrosion resistance
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Embodiment 1
[0034] A method for processing austenitic stainless steel for construction, the steps of which are:
[0035] 1) The components of 304 austenitic stainless steel are mixed and melted into molten steel at 1600 ° C. Electromagnetic stirring is performed on the molten steel before casting the billet, and MnO is mixed into the molten steel during the stirring process 2 -TiO 2 Oxide powder, MnO 2 -TiO 2 The mixing amount of oxide powder is 2kg / ton of molten steel, fully stirred and evenly cast into billets;
[0036] 2) Cut off the riser of the billet casting, grind to remove the black scale on the surface, and then heat the billet for forging, the initial forging temperature is 1100-1200°C, the forging deformation is ≥30%, and the final forging temperature is 950-1000°C;
[0037] 3) The forged stainless steel parts are heated to 950°C for solution treatment, the solution holding time is 1h, and after solution, oil quenching and cooling to room temperature;
[0038] 4) After oil ...
Embodiment 2
[0049] A method for processing austenitic stainless steel for construction, the steps of which are:
[0050] 1) The components of 304L austenitic stainless steel are mixed and melted into molten steel at 1500°C. Electromagnetic stirring is performed on the molten steel before casting the billet, and MnO is mixed into the molten steel during the stirring process 2 -TiO 2 Oxide powder, MnO 2 -TiO 2 The mixing amount of oxide powder is 3kg / ton of molten steel, fully stirred and evenly cast into billets;
[0051] 2) Cut off the riser of the billet casting, grind to remove the black scale on the surface, and then heat the billet for forging, the initial forging temperature is 1100-1200°C, the forging deformation is ≥30%, and the final forging temperature is 950-1000°C;
[0052] 3) The forged stainless steel parts are heated to 950-1000°C for solution treatment, the solution holding time is 1-2 hours, and the solution is cooled to room temperature by oil quenching;
[0053] 4) A...
Embodiment 3
[0064] A method for processing austenitic stainless steel for construction, the steps of which are:
[0065] 1) The components of 316 austenitic stainless steel are mixed and melted into molten steel at 1700 ° C. Electromagnetic stirring is performed on the molten steel before casting the billet, and MnO is mixed into the molten steel during the stirring process 2 -TiO 2 Oxide powder, MnO 2 -TiO 2 The mixing amount of oxide powder is 5kg / ton of molten steel, fully stirred and evenly cast into billets;
[0066] 2) Cut off the riser of the billet casting, grind to remove the black scale on the surface, and then heat the billet for forging, the initial forging temperature is 1100-1200°C, the forging deformation is ≥30%, and the final forging temperature is not lower than 950°C;
[0067] 3) The forged stainless steel parts are heated to 1000°C for solution treatment, the solution holding time is 1h, and after solution, oil quenching and cooling to room temperature;
[0068] 4)...
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