Scrap brass smelting auxiliary and preparation method thereof
A technology of miscellaneous brass and additives, which is applied in the field of regenerated brass smelting additives and its preparation, can solve the problems of waste gas pollution, poor effect, and high cost of waste brass refining and slag removal, and achieve low cost, low cost and low cost. The effect of environmental protection
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Embodiment 1
[0019] The weight composition of ingredients is: 50% calcium carbonate, 25% quartz sand, 10% sodium chloride, and 10% charcoal powder.
[0020] The preparation method is:
[0021] a) Dry the calcium salt, sodium salt and quartz sand in an oven respectively, heat it at 150-200°C for 1-2 hours, ball mill and pulverize them separately, sieve the calcium salt with 100 mesh, sieve the sodium salt with 100 mesh, and sieve the quartz sand with 200 mesh Mesh sieve;
[0022] b) Baking the charcoal in an oven at 150-160°C for 1-2 hours, crushing and sieving with 20 meshes;
[0023] c) Weigh the dried, crushed and sieved calcium salt, sodium salt, quartz sand and charcoal powder according to the composition of the ingredients, put them into a blender and stir them evenly, take them out to cool in the air and pack them.
[0024] When in use, brazed copper is melted in the smelting furnace and kept at 950-1050°C, and the bagged copper smelting aid is added to the melt at 0.4% of the weig...
Embodiment 2
[0027] The weight composition of ingredients is: 40% calcium carbonate, 10% calcium fluoride, 20% quartz sand, 15% sodium chloride, and 15% charcoal powder.
[0028] The preparation method is:
[0029] a) Dry the calcium salt, sodium salt and quartz sand in an oven respectively, heat it at 150-200°C for 1-2 hours, ball mill and pulverize them separately, sieve the calcium salt with 100 mesh, sieve the sodium salt with 100 mesh, and sieve the quartz sand with 200 mesh Mesh sieve;
[0030] b) Baking the charcoal in an oven at 150-160°C for 1-2 hours, crushing and sieving with 20 meshes;
[0031] c) Weigh the dried, crushed and sieved calcium salt, sodium salt, quartz sand and charcoal powder according to the composition of the ingredients, put them into a blender and stir them evenly, take them out to cool in the air and pack them.
[0032] When in use, brazed copper is melted in the smelting furnace and kept at 950-1050°C, and the bagged copper smelting aid is added to the me...
Embodiment 3
[0035] The weight composition of ingredients is: 35% calcium carbonate, 5% calcium fluoride, 30% quartz sand, 15% sodium chloride, and 15% charcoal powder.
[0036] The preparation method is:
[0037] a) Dry the calcium salt, sodium salt and quartz sand in an oven respectively, heat it at 150-200°C for 1-2 hours, ball mill and pulverize them separately, sieve the calcium salt with 100 mesh, sieve the sodium salt with 100 mesh, and sieve the quartz sand with 200 mesh Mesh sieve;
[0038] b) Baking the charcoal in an oven at 150-160°C for 1-2 hours, crushing and sieving with 20 meshes;
[0039] c) Weigh the dried, crushed and sieved calcium salt, sodium salt, quartz sand and charcoal powder according to the composition of the ingredients, put them into a blender and stir them evenly, take them out to cool in the air and pack them.
[0040] When in use, brazed copper is melted in the smelting furnace and kept at 950-1050°C, and the bagged copper smelting aid is added into the m...
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