A kind of decarburization smelting method of iron-nickel alloy recycled material
A technology of iron-nickel alloy and smelting method, which is applied in the field of decarburization and smelting of iron-nickel alloy recycled materials, which can solve the problems of clean technology, environmental pollution, high cost, metal oxidation, etc., and achieve reasonable process design, low cost, and loss of metal elements low effect
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example 1
[0030] Example 1: A 2T non-vacuum induction furnace was used to smelt 2.1 tons of expanded alloy 4J42 recycled materials.
[0031] The upper limits of mass percentage of silicon and manganese elements in 4J42 alloy recycled materials are 0.2% and 0.5% respectively.
[0032] Take 10.012Kg samples immediately from this batch of iron-nickel alloy reclaimed materials to be smelted, use organic solvent to clean and dry, weigh the remaining alloy weight to be 9.898Kg, calculate and get this batch of reclaimed materials covered with oil mass percent=(10.012- 9.898) / 10.012 = 1.14%.
[0033] 100Kg of iron oxide scale produced in the forging process was crushed to -200 mesh to 1 mesh, and baked in a heating furnace at 300°C for 8 hours.
[0034] Weigh 100g of the pretreated iron oxide scale, and use the chemical analysis method to detect that the mass percentage of oxygen in the iron oxide scale is 24.3%.
[0035] Weigh 50Kg of the pretreated iron oxide scale, and the calculation form...
example 2
[0044] Example 2: Using a 3T non-vacuum induction furnace to melt 3.2 tons of soft magnetic alloy 1J77 recycled materials.
[0045] The upper limits of mass percentage of silicon and manganese elements in 1J77 alloy recycled materials are 0.3% and 0.6% respectively.
[0046] Take 10.017Kg samples immediately from this batch of iron-nickel alloy reclaimed materials to be smelted, use organic solvent to clean and dry, weigh the remaining alloy weight to be 9.742Kg, calculate and get this batch of reclaimed materials covered with oil mass percentage=(10.017- 9.742) / 10.017 = 2.75%;
[0047] Break 100Kg of iron oxide scale produced in the forging process to -200 mesh to 1 mesh, and bake it in a heating furnace at 300°C for 8 hours;
[0048] Weigh 100g of the pretreated iron oxide scale, and use the chemical analysis method to detect that the mass percentage of oxygen in the iron oxide scale is 26.5%.
[0049] Weigh 60Kg of the pretreated iron oxide scale, and the calculation form...
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